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0
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1 /* Interfaces to system-dependent kernel and library entries.
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2 Copyright (C) 1985-1988, 1992-1995 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Tinker Systems.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: FSF 19.30 except for some Windows-NT crap. */
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23
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24 /* Substantially cleaned up by Ben Wing, Dec. 1994 / Jan. 1995. */
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25
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26 /* In this file, open, read and write refer to the system calls,
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27 not our sugared interfaces sys_open, sys_read and sys_write.
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28 */
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29
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30 #define DONT_ENCAPSULATE
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31
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32 #include <config.h>
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33 #include "lisp.h"
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34
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35 /* ------------------------------- */
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36 /* basic includes */
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37 /* ------------------------------- */
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38
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39 #ifdef HAVE_TTY
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40 #include "console-tty.h"
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41 #endif /* HAVE_TTY */
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42
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43 #include "console-stream.h"
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44
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45 #include "buffer.h"
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46 #include "events.h"
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47 #include "frame.h"
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48 #include "redisplay.h"
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49 #include "process.h"
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50 #include "sysdep.h"
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51 #include "window.h"
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52
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53 #include <setjmp.h>
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54 #include "sysfile.h"
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55 #include "syswait.h"
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56 #include "sysdir.h"
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57 #include "systime.h"
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58 #include <sys/times.h>
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59
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60 /* ------------------------------- */
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61 /* VMS includes */
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62 /* ------------------------------- */
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63
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64 #ifdef VMS
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65 #include <ttdef.h>
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66 #include <tt2def.h>
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67 #include <iodef.h>
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68 #include <ssdef.h>
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69 #include <descrip.h>
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70 #include <fibdef.h>
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71 #include <atrdef.h>
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72 #undef F_SETFL
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73 #ifndef RAB/*$C_BID -- suppress compiler warnings */
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74 #include <rab.h>
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75 #endif
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76 #define MAXIOSIZE (32 * PAGESIZE) /* Don't I/O more than 32 blocks at a time */
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77 #endif /* VMS */
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78
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79 /* ------------------------------- */
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80 /* TTY definitions */
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81 /* ------------------------------- */
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82
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83 #ifdef USG
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84 #include <sys/utsname.h>
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85 #if defined (TIOCGWINSZ) || defined (ISC4_0)
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86 #ifdef NEED_SIOCTL
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87 #include <sys/sioctl.h>
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88 #endif
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89 #ifdef NEED_PTEM_H
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90 #include <sys/stream.h>
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91 #include <sys/ptem.h>
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92 #endif
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93 #endif /* TIOCGWINSZ or ISC4_0 */
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94 #endif /* USG */
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95
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96 #ifdef HAVE_SYS_STROPTS_H
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97 #include <sys/stropts.h>
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98 #endif /* HAVE_SYS_STROPTS_H */
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99
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100 /* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */
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101 #ifndef LPASS8
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102 #define LPASS8 0
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103 #endif
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104
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105 #ifndef HAVE_H_ERRNO
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106 int h_errno;
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107 #endif
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108
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109 #ifdef HAVE_TTY
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110
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111 static int baud_convert[] =
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112 #ifdef BAUD_CONVERT
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113 BAUD_CONVERT;
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114 #else
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115 {
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116 0, 50, 75, 110, 135, 150, 200, 300, 600, 1200,
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117 1800, 2400, 4800, 9600, 19200, 38400
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118 };
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119 #endif
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120
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121 #endif
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122
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123 #ifdef AIXHFT
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124 static void hft_init (struct console *c);
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125 static void hft_reset (struct console *c);
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126 #endif
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127
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128 /* ------------------------------- */
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129 /* miscellaneous */
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130 /* ------------------------------- */
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131
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132 #ifndef HAVE_UTIMES
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133 #ifndef HAVE_STRUCT_UTIMBUF
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134 /* We want to use utime rather than utimes, but we couldn't find the
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135 structure declaration. We'll use the traditional one. */
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136 struct utimbuf
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137 {
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138 long actime;
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139 long modtime;
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140 };
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141 #endif
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142 #endif
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143
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144
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145 /************************************************************************/
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146 /* subprocess control */
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147 /************************************************************************/
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148
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149 #ifdef HAVE_TTY
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150
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151 #ifdef SIGTSTP
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152
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153 /* Arrange for character C to be read as the next input from
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154 the terminal. */
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155 void
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156 stuff_char (struct console *con, int c)
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157 {
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158 int input_fd;
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159
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160 assert (CONSOLE_TTY_P (con));
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161 input_fd = CONSOLE_TTY_DATA (con)->infd;
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162 /* Should perhaps error if in batch mode */
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163 #ifdef TIOCSTI
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164 ioctl (input_fd, TIOCSTI, &c);
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165 #else /* no TIOCSTI */
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166 error ("Cannot stuff terminal input characters in this version of Unix.");
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167 #endif /* no TIOCSTI */
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168 }
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169
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170 #endif /* SIGTSTP */
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171
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172 #endif /* HAVE_TTY */
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173
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174 void
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175 set_exclusive_use (int fd)
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176 {
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177 #ifdef FIOCLEX
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178 ioctl (fd, FIOCLEX, 0);
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179 #endif
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180 /* Ok to do nothing if this feature does not exist */
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181 }
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182
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183 void
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184 set_descriptor_non_blocking (int fd)
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185 {
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186 /* Stride people say it's a mystery why this is needed
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187 as well as the O_NDELAY, but that it fails without this. */
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188 /* For AIX: Apparently need this for non-blocking reads on sockets.
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189 It seems that O_NONBLOCK applies only to FIFOs? From
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190 lowry@watson.ibm.com (Andy Lowry). */
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191 /* #### Should this be conditionalized on FIONBIO? */
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192 #if defined (STRIDE) || (defined (pfa) && defined (HAVE_PTYS)) || defined (AIX)
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193 {
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194 int one = 1;
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195 ioctl (fd, FIONBIO, &one);
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196 }
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197 #endif
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198
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199 #ifdef O_NONBLOCK /* The POSIX way */
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200 fcntl (fd, F_SETFL, O_NONBLOCK);
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201 #elif defined (O_NDELAY)
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202 fcntl (fd, F_SETFL, O_NDELAY);
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203 #endif /* O_NONBLOCK */
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204 }
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205
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206 #if defined (NO_SUBPROCESSES)
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207
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208 #ifdef BSD
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209 void
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210 wait_without_blocking (void)
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211 {
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212 wait3 (0, WNOHANG | WUNTRACED, 0);
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213 synch_process_alive = 0;
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214 }
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215 #endif /* BSD */
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216
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217 #endif /* NO_SUBPROCESSES */
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218
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219 int wait_debugging; /* Set nonzero to make following function work under dbx
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220 (at least for bsd). */
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221
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222 /* Wait for subprocess with process id `pid' to terminate and
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223 make sure it will get eliminated (not remain forever as a zombie). */
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224
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225 void
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226 wait_for_termination (int pid)
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227 {
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228 /* #### With the new improved SIGCHLD handling stuff, there is much
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229 less danger of race conditions and some of the comments below
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230 don't apply. This should be updated. */
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231 while (1)
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232 {
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233 #if !defined (NO_SUBPROCESSES)
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234 # ifdef VMS
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235 int status;
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236
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237 status = SYS$FORCEX (&pid, 0, 0);
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238 return;
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239 # else /* not VMS */
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240 /* Note that, whenever any subprocess terminates (asynch. or synch.),
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241 the SIGCHLD handler will be called and it will call wait().
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242 Thus we cannot just call wait() ourselves, and we can't block
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243 SIGCHLD and then call wait(), because then if an asynch.
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244 process dies while we're waiting for our synch. process,
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245 Emacs will never notice that the asynch. process died.
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246
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247 So, the general approach we take is to repeatedly block until
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248 a signal arrives, and then check if our process died
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249 using kill (pid, 0). (We could also check the value of
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250 `synch_process_alive', since the SIGCHLD handler will reset
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251 that and we know that we're only being called on synchronous
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252 processes, but this approach is safer. I don't trust
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253 the proper delivery of SIGCHLD.
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254
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255 Note also that we cannot use any form of waitpid().
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256 A loop with WNOHANG will chew up CPU time; better to
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257 use sleep(). A loop without WNOWAIT will screw up
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258 the SIGCHLD handler (actually this is not true, if you
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259 duplicate the exit-status-reaping code; see below).
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260 A loop with WNOWAIT will result in a race condition
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261 if the process terminates between the process-status
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262 check and the call to waitpid(). */
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263
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264 /* Formerly, immediate_quit was set around this function call,
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265 but that could lead to problems if the QUIT happened when
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266 SIGCHLD was blocked -- it would remain blocked. Yet another
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267 reason why immediate_quit is a bad idea. In any case, there
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268 is no reason to resort to this because either the SIGIO or
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269 the SIGALRM will stop the block in EMACS_WAIT_FOR_SIGNAL(). */
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270 QUIT;
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271 # ifdef HAVE_WAITPID
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272 /* Apparently there are bugs on some systems with the second
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273 method used below (the EMACS_BLOCK_SIGNAL method), whereby
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274 zombie processes get left around. It appears in those cases
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275 that the SIGCHLD handler is never getting invoked. It's
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276 not clear whether this is an Emacs bug or a kernel bug or
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277 both: on HPUX this problem is observed only with XEmacs,
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278 but under Solaris 2.4 all sorts of different programs have
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279 problems with zombies. The method we use here does not
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280 require a working SIGCHLD (but will not break if it is
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281 working), and should be safe. */
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282 /*
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283 We use waitpid() contrary to the remarks above. There is
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284 no race condition, because the three situations when
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285 sigchld_handler is invoked should be handled OK:
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286 - handler invoked before waitpid(): In this case, subprocess
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287 status will be set by sigchld_handler. waitpid() here will
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288 return -1 with errno set to ECHILD, which is a valid
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289 exit condition.
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290
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291 - handler invoked during waitpid(): as above, except that
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292 errno here will be set to EINTR. This will cause waitpid() to
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293 be called again, and this time it will exit with ECHILD.
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294
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295 - handler invoked after waitpid(): The following code will reap
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296 the subprocess. In the handler, wait() will return -1
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297 because there is no child to reap, and the handler will exit
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298 without modifying child subprocess status.
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299 */
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300 {
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301 /* Because the SIGCHLD handler can potentially reap the
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302 synchronous subprocess, we should take care of that. */
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303
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304 int ret;
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305 WAITTYPE w;
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306 /* Will stay in the do loop as long as:
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307 1. Process is alive
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308 2. Ctrl-G is not pressed */
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309 do
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310 {
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311 QUIT;
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312 ret = waitpid (pid, &w, 0);
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313 /* waitpid returns 0 if the process is still alive. */
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314 }
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315 while (ret == 0 || (ret == -1 && errno == EINTR));
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316
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317 /* On exiting the loop, ret will be -1, with errno set to
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318 ECHILD if the child has already been reaped, eg in the
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319 signal handler. */
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320
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321 if (! (ret == pid || (ret == -1 && errno == ECHILD)))
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322 {
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323 /* We've had some error condition here. Per POSIX, the
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324 only other possibilities are:
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325 EFAULT (bus error accessing arg 2) or EINVAL (incorrect
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326 arguments), which are both program bugs.
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327
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328 Since implementations may add their own error
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329 indicators on top, we ignore it by default.
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330 */
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331
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332 break;
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333 }
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334
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335 /* Set synch process globals. This is can also happen
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336 in sigchld_handler, and that code is duplicated. */
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337 if (ret == pid)
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338 { /* Update the global sigchld stats. */
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339 synch_process_alive = 0;
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340 if (WIFEXITED (w))
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341 synch_process_retcode = WRETCODE (w);
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342 else if (WIFSIGNALED (w))
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343 synch_process_death = signal_name (WTERMSIG (w));
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344 }
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345 break;
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346 }
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347 # elif defined (EMACS_BLOCK_SIGNAL) && !defined (BROKEN_WAIT_FOR_SIGNAL) && defined (SIGCHLD)
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348 if (!wait_debugging)
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349 {
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350 EMACS_BLOCK_SIGNAL (SIGCHLD);
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351 /* Block SIGCHLD from happening during this check,
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352 to avoid race conditions. */
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353 if (kill (pid, 0) < 0)
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354 {
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355 EMACS_UNBLOCK_SIGNAL (SIGCHLD);
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356 return;
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357 }
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358 else
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359 /* WARNING: Whatever this macro does *must* not allow SIGCHLD
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360 to happen between the time that it's reenabled and when we
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361 begin to block. Otherwise we may end up blocking for a
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362 signal that has already arrived and isn't coming again.
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363 Can you say "race condition"?
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364
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365 I assume that the system calls sigpause() or sigsuspend()
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366 provide this atomicness. If you're getting hangs in
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367 sigpause()/sigsuspend(), then your OS doesn't
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368 implement this properly (this applies under hpux9,
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369 for example). Try defining BROKEN_WAIT_FOR_SIGNAL. */
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370 EMACS_WAIT_FOR_SIGNAL (SIGCHLD);
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371 continue;
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372 }
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373 # else /* not HAVE_WAITPID and (not EMACS_BLOCK_SIGNAL or
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374 BROKEN_WAIT_FOR_SIGNAL) */
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375 /* This approach is kind of cheesy but is guaranteed(?!) to work
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376 for all systems. */
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377 if (kill (pid, 0) < 0)
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378 return;
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379 emacs_sleep (1);
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380 # endif /* not HAVE_WAITPID and (not EMACS_BLOCK_SIGNAL or
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381 BROKEN_WAIT_FOR_SIGNAL) */
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382 # endif /* not VMS */
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383 #else /* NO_SUBPROCESSES */
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384 /* No need to be tricky like above; we can just call wait(). */
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385 int status;
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386 /* #### should figure out how to write a wait_allowing_quit().
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387 Since hardly any systems don't have subprocess support,
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388 however, there doesn't seem to be much point. */
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389 status = wait (0);
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390 if (status == pid)
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391 return;
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392 #endif /* NO_SUBPROCESSES */
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393 }
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394 }
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395
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396
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397 #if !defined (NO_SUBPROCESSES)
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398
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399 /*
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400 * flush any pending output
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401 * (may flush input as well; it does not matter the way we use it)
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402 */
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403
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404 void
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405 flush_pending_output (int channel)
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406 {
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407 #ifdef HAVE_TERMIOS
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408 /* If we try this, we get hit with SIGTTIN, because
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409 the child's tty belongs to the child's pgrp. */
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410 #elif defined (TCFLSH)
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411 ioctl (channel, TCFLSH, 1);
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412 #elif defined (TIOCFLUSH)
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413 int zero = 0;
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414 /* 3rd arg should be ignored
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415 but some 4.2 kernels actually want the address of an int
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416 and nonzero means something different. */
|
|
|
417 ioctl (channel, TIOCFLUSH, &zero);
|
|
|
418 #endif
|
|
|
419 }
|
|
|
420
|
|
|
421 #ifndef VMS
|
|
|
422 #ifndef MSDOS
|
|
|
423 /* Set up the terminal at the other end of a pseudo-terminal that
|
|
|
424 we will be controlling an inferior through.
|
|
|
425 It should not echo or do line-editing, since that is done
|
|
|
426 in Emacs. No padding needed for insertion into an Emacs buffer. */
|
|
|
427
|
|
|
428 void
|
|
|
429 child_setup_tty (int out)
|
|
|
430 {
|
|
|
431 struct emacs_tty s;
|
|
|
432 EMACS_GET_TTY (out, &s);
|
|
|
433
|
|
|
434 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
|
|
|
435 assert (isatty(out));
|
|
|
436 s.main.c_oflag |= OPOST; /* Enable output postprocessing */
|
|
|
437 s.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL on output */
|
|
|
438 #ifdef NLDLY
|
|
|
439 s.main.c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY);
|
|
|
440 /* No output delays */
|
|
|
441 #endif
|
|
|
442 s.main.c_lflag &= ~ECHO; /* Disable echo */
|
|
|
443 s.main.c_lflag |= ISIG; /* Enable signals */
|
|
|
444 #ifdef IUCLC
|
|
|
445 s.main.c_iflag &= ~IUCLC; /* Disable downcasing on input. */
|
|
|
446 #endif
|
|
|
447 #ifdef OLCUC
|
|
|
448 s.main.c_oflag &= ~OLCUC; /* Disable upcasing on output. */
|
|
|
449 #endif
|
|
|
450 #if defined (CSIZE) && defined (CS8)
|
|
|
451 s.main.c_cflag = (s.main.c_cflag & ~CSIZE) | CS8; /* Don't strip 8th bit */
|
|
|
452 #endif
|
|
|
453 #ifdef ISTRIP
|
|
|
454 s.main.c_iflag &= ~ISTRIP; /* Don't strip 8th bit on input */
|
|
|
455 #endif
|
|
|
456 #if 0
|
|
|
457 /* Unnecessary as long as ICANON is set */
|
|
|
458 s.main.c_cc[VMIN] = 1; /* minimum number of characters to accept */
|
|
|
459 s.main.c_cc[VTIME] = 0; /* wait forever for at least 1 character */
|
|
|
460 #endif /* 0 */
|
|
|
461
|
|
|
462 s.main.c_lflag |= ICANON; /* Enable erase/kill and eof processing */
|
|
|
463 s.main.c_cc[VEOF] = 04; /* insure that EOF is Control-D */
|
|
|
464 s.main.c_cc[VERASE] = CDISABLE; /* disable erase processing */
|
|
|
465 s.main.c_cc[VKILL] = CDISABLE; /* disable kill processing */
|
|
|
466
|
|
|
467 #ifdef HPUX
|
|
|
468 s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */
|
|
|
469 #endif /* HPUX */
|
|
|
470
|
|
|
471 #ifdef AIX
|
|
|
472 #ifndef IBMR2AIX
|
|
|
473 /* AIX enhanced edit loses NULs, so disable it. */
|
|
|
474 s.main.c_line = 0;
|
|
|
475 s.main.c_iflag &= ~ASCEDIT;
|
|
|
476 #endif /* IBMR2AIX */
|
|
|
477 /* Also, PTY overloads NUL and BREAK.
|
|
|
478 don't ignore break, but don't signal either, so it looks like NUL.
|
|
|
479 This really serves a purpose only if running in an XTERM window
|
|
|
480 or via TELNET or the like, but does no harm elsewhere. */
|
|
|
481 s.main.c_iflag &= ~IGNBRK;
|
|
|
482 s.main.c_iflag &= ~BRKINT;
|
|
|
483 #endif /* AIX */
|
|
|
484 #ifdef SIGNALS_VIA_CHARACTERS
|
|
|
485 /* the QUIT and INTR character are used in process_send_signal
|
|
|
486 so set them here to something useful. */
|
|
|
487 s.main.c_cc[VQUIT] = '\\'&037; /* Control-\ */
|
|
|
488 s.main.c_cc[VINTR] = 'C' &037; /* Control-C */
|
|
|
489 #else /* no TIOCGPGRP or no TIOCGLTC or no TIOCGETC */
|
|
|
490 /* QUIT and INTR work better as signals, so disable character forms */
|
|
|
491 s.main.c_cc[VQUIT] = CDISABLE;
|
|
|
492 s.main.c_cc[VINTR] = CDISABLE;
|
|
|
493 s.main.c_lflag &= ~ISIG;
|
|
|
494 #endif /* no TIOCGPGRP or no TIOCGLTC or no TIOCGETC */
|
|
|
495 s.main.c_cc[VEOL] = CDISABLE;
|
|
|
496 #if defined (CBAUD)
|
|
|
497 /* <mdiers> ### This is not portable. ###
|
|
|
498 POSIX does not specify CBAUD, and 4.4BSD does not have it.
|
|
|
499 Instead, POSIX suggests to use cfset{i,o}speed().
|
|
|
500 [cf. D. Lewine, POSIX Programmer's Guide, Chapter 8: Terminal
|
|
|
501 I/O, O'Reilly 1991] */
|
|
|
502 s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */
|
|
|
503 #else
|
|
|
504 /* <mdiers> What to do upon failure? Just ignoring rc is probably
|
|
|
505 not acceptable, is it? */
|
|
|
506 if (cfsetispeed (&s.main, B9600) == -1) /* ignore */;
|
|
|
507 if (cfsetospeed (&s.main, B9600) == -1) /* ignore */;
|
|
|
508 #endif /* defined (CBAUD) */
|
|
|
509
|
|
|
510 #else /* not HAVE_TERMIO */
|
|
|
511
|
|
|
512 s.main.sg_flags &= ~(ECHO | CRMOD | ANYP | ALLDELAY | RAW | LCASE
|
|
|
513 | CBREAK | TANDEM);
|
|
|
514 s.main.sg_flags |= LPASS8;
|
|
|
515 s.main.sg_erase = 0377;
|
|
|
516 s.main.sg_kill = 0377;
|
|
|
517 s.lmode = LLITOUT | s.lmode; /* Don't strip 8th bit */
|
|
|
518
|
|
|
519 #endif /* not HAVE_TERMIO */
|
|
|
520 EMACS_SET_TTY (out, &s, 0);
|
|
|
521
|
|
|
522 #ifdef RTU
|
|
|
523 {
|
|
|
524 int zero = 0;
|
|
|
525 ioctl (out, FIOASYNC, &zero);
|
|
|
526 }
|
|
|
527 #endif /* RTU */
|
|
|
528 }
|
|
|
529 #endif /* not MSDOS */
|
|
|
530 #endif /* not VMS */
|
|
|
531
|
|
|
532 #endif /* not NO_SUBPROCESSES */
|
|
|
533
|
|
|
534
|
|
|
535 #if !defined (VMS) && !defined (SIGTSTP) && !defined (USG_JOBCTRL)
|
|
|
536
|
|
|
537 /* Record a signal code and the handler for it. */
|
|
|
538 struct save_signal
|
|
|
539 {
|
|
|
540 int code;
|
|
|
541 SIGTYPE (*handler) ();
|
|
|
542 };
|
|
|
543
|
|
|
544 static void
|
|
|
545 save_signal_handlers (struct save_signal *saved_handlers)
|
|
|
546 {
|
|
|
547 while (saved_handlers->code)
|
|
|
548 {
|
|
|
549 saved_handlers->handler
|
|
|
550 = (SIGTYPE (*) ()) signal (saved_handlers->code, SIG_IGN);
|
|
|
551 saved_handlers++;
|
|
|
552 }
|
|
|
553 }
|
|
|
554
|
|
|
555 static void
|
|
|
556 restore_signal_handlers (struct save_signal *saved_handlers)
|
|
|
557 {
|
|
|
558 while (saved_handlers->code)
|
|
|
559 {
|
|
|
560 signal (saved_handlers->code, saved_handlers->handler);
|
|
|
561 saved_handlers++;
|
|
|
562 }
|
|
|
563 }
|
|
|
564
|
|
|
565 /* Fork a subshell. */
|
|
|
566 static void
|
|
|
567 sys_subshell (void)
|
|
|
568 {
|
|
|
569 #ifdef MSDOS
|
|
|
570 int st;
|
|
|
571 char oldwd[MAXPATHLEN+1]; /* Fixed length is safe on MSDOS. */
|
|
|
572 #endif /* MSDOS */
|
|
|
573 int pid;
|
|
|
574 struct save_signal saved_handlers[5];
|
|
|
575 Lisp_Object dir;
|
|
|
576 unsigned char *str = 0;
|
|
|
577 int len;
|
|
|
578
|
|
|
579 saved_handlers[0].code = SIGINT;
|
|
|
580 saved_handlers[1].code = SIGQUIT;
|
|
|
581 saved_handlers[2].code = SIGTERM;
|
|
|
582 #ifdef SIGIO
|
|
|
583 saved_handlers[3].code = SIGIO;
|
|
|
584 saved_handlers[4].code = 0;
|
|
|
585 #else
|
|
|
586 saved_handlers[3].code = 0;
|
|
|
587 #endif
|
|
|
588
|
|
|
589 /* Mentioning current_buffer->buffer would mean including buffer.h,
|
|
|
590 which somehow wedges the hp compiler. So instead... */
|
|
|
591
|
|
|
592 if (NILP (Fboundp (Qdefault_directory)))
|
|
|
593 goto xyzzy;
|
|
|
594 dir = Fsymbol_value (Qdefault_directory);
|
|
|
595 if (!STRINGP (dir))
|
|
|
596 goto xyzzy;
|
|
|
597
|
|
|
598 dir = expand_and_dir_to_file (Funhandled_file_name_directory (dir), Qnil);
|
|
|
599 str = (unsigned char *) alloca (string_length (XSTRING (dir)) + 2);
|
|
|
600 len = string_length (XSTRING (dir));
|
|
|
601 memcpy (str, string_data (XSTRING (dir)), len);
|
|
|
602 /* #### Unix specific */
|
|
|
603 if (str[len - 1] != '/') str[len++] = '/';
|
|
|
604 str[len] = 0;
|
|
|
605 xyzzy:
|
|
|
606
|
|
|
607 pid = vfork ();
|
|
|
608
|
|
|
609 if (pid == -1)
|
|
|
610 error ("Can't spawn subshell");
|
|
|
611 if (pid == 0)
|
|
|
612 {
|
|
|
613 char *sh = 0;
|
|
|
614
|
|
|
615 #ifdef MSDOS /* MW, Aug 1993 */
|
|
|
616 getwd (oldwd);
|
|
|
617 if (sh == 0)
|
|
|
618 sh = (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */
|
|
|
619 #endif
|
|
|
620 if (sh == 0)
|
|
|
621 sh = (char *) egetenv ("SHELL");
|
|
|
622 if (sh == 0)
|
|
|
623 sh = "sh";
|
|
|
624
|
|
|
625 /* Use our buffer's default directory for the subshell. */
|
|
|
626 if (str)
|
|
|
627 sys_chdir (str);
|
|
|
628
|
|
|
629 #if !defined (NO_SUBPROCESSES)
|
|
|
630 close_process_descs (); /* Close Emacs's pipes/ptys */
|
|
|
631 #endif
|
|
|
632
|
|
|
633 #ifdef SET_EMACS_PRIORITY
|
|
|
634 if (emacs_priority != 0)
|
|
|
635 nice (-emacs_priority); /* Give the new shell the default priority */
|
|
|
636 #endif
|
|
|
637
|
|
|
638 #ifdef MSDOS
|
|
|
639 st = system (sh);
|
|
|
640 sys_chdir (oldwd);
|
|
|
641 #if 0 /* This is also reported if last command executed in subshell failed, KFS */
|
|
|
642 if (st)
|
|
|
643 report_file_error ("Can't execute subshell",
|
|
|
644 Fcons (build_string (sh), Qnil));
|
|
|
645 #endif
|
|
|
646 #else /* not MSDOS */
|
|
|
647 execlp (sh, sh, 0);
|
|
|
648 write (1, "Can't execute subshell", 22);
|
|
|
649 _exit (1);
|
|
|
650 #endif /* not MSDOS */
|
|
|
651 }
|
|
|
652
|
|
|
653 save_signal_handlers (saved_handlers);
|
|
|
654 synch_process_alive = 1;
|
|
|
655 #ifndef MSDOS
|
|
|
656 wait_for_termination (pid);
|
|
|
657 #endif
|
|
|
658 restore_signal_handlers (saved_handlers);
|
|
|
659 }
|
|
|
660
|
|
|
661 #endif /* !defined (VMS) && !defined (SIGTSTP) && !defined (USG_JOBCTRL) */
|
|
|
662
|
|
|
663
|
|
|
664
|
|
|
665 /* Suspend the Emacs process; give terminal to its superior. */
|
|
|
666 void
|
|
|
667 sys_suspend (void)
|
|
|
668 {
|
|
|
669 #ifdef VMS
|
|
|
670 /* "Foster" parentage allows emacs to return to a subprocess that attached
|
|
|
671 to the current emacs as a cheaper than starting a whole new process. This
|
|
|
672 is set up by KEPTEDITOR.COM. */
|
|
|
673 unsigned long parent_id, foster_parent_id;
|
|
|
674 char *fpid_string;
|
|
|
675
|
|
|
676 fpid_string = getenv ("EMACS_PARENT_PID");
|
|
|
677 if (fpid_string != NULL)
|
|
|
678 {
|
|
|
679 sscanf (fpid_string, "%x", &foster_parent_id);
|
|
|
680 if (foster_parent_id != 0)
|
|
|
681 parent_id = foster_parent_id;
|
|
|
682 else
|
|
|
683 parent_id = getppid ();
|
|
|
684 }
|
|
|
685 else
|
|
|
686 parent_id = getppid ();
|
|
|
687
|
|
|
688 xfree (fpid_string); /* On VMS, this was malloc'd */
|
|
|
689
|
|
|
690 if (parent_id && parent_id != 0xffffffff)
|
|
|
691 {
|
|
|
692 SIGTYPE (*oldsig)() = (int) signal (SIGINT, SIG_IGN);
|
|
|
693 int status = LIB$ATTACH (&parent_id) & 1;
|
|
|
694 signal (SIGINT, oldsig);
|
|
|
695 return status;
|
|
|
696 }
|
|
|
697 else
|
|
|
698 {
|
|
|
699 struct {
|
|
|
700 int l;
|
|
|
701 char *a;
|
|
|
702 } d_prompt;
|
|
|
703 d_prompt.l = sizeof ("Emacs: "); /* Our special prompt */
|
|
|
704 d_prompt.a = "Emacs: "; /* Just a reminder */
|
|
|
705 LIB$SPAWN (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, &d_prompt, 0);
|
|
|
706 return 1;
|
|
|
707 }
|
|
|
708 return -1;
|
|
|
709 #elif defined (SIGTSTP) && !defined (MSDOS)
|
|
|
710 {
|
|
|
711 int pgrp = EMACS_GET_PROCESS_GROUP ();
|
|
|
712 EMACS_KILLPG (pgrp, SIGTSTP);
|
|
|
713 }
|
|
|
714
|
|
|
715 #elif defined (USG_JOBCTRL)
|
|
|
716 /* If you don't know what this is don't mess with it */
|
|
|
717 ptrace (0, 0, 0, 0); /* set for ptrace - caught by csh */
|
|
|
718 kill (getpid (), SIGQUIT);
|
|
|
719
|
|
|
720 #else /* No SIGTSTP or USG_JOBCTRL */
|
|
|
721
|
|
|
722 /* On a system where suspending is not implemented,
|
|
|
723 instead fork a subshell and let it talk directly to the terminal
|
|
|
724 while we wait. */
|
|
|
725 sys_subshell ();
|
|
|
726
|
|
|
727 #endif
|
|
|
728 }
|
|
|
729
|
|
|
730 /* Set the logical window size associated with descriptor FD
|
|
|
731 to HEIGHT and WIDTH. This is used mainly with ptys. */
|
|
|
732
|
|
|
733 int
|
|
|
734 set_window_size (int fd, int height, int width)
|
|
|
735 {
|
|
|
736 #ifdef TIOCSWINSZ
|
|
|
737
|
|
|
738 /* BSD-style. */
|
|
|
739 struct winsize size;
|
|
|
740 size.ws_row = height;
|
|
|
741 size.ws_col = width;
|
|
|
742
|
|
|
743 if (ioctl (fd, TIOCSWINSZ, &size) == -1)
|
|
|
744 return 0; /* error */
|
|
|
745 else
|
|
|
746 return 1;
|
|
|
747
|
|
|
748 #elif defined (TIOCSSIZE)
|
|
|
749
|
|
|
750 /* SunOS - style. */
|
|
|
751 struct ttysize size;
|
|
|
752 size.ts_lines = height;
|
|
|
753 size.ts_cols = width;
|
|
|
754
|
|
|
755 if (ioctl (fd, TIOCGSIZE, &size) == -1)
|
|
|
756 return 0;
|
|
|
757 else
|
|
|
758 return 1;
|
|
|
759 #else
|
|
|
760 return -1;
|
|
|
761 #endif
|
|
|
762 }
|
|
|
763
|
|
|
764 #ifdef HAVE_PTYS
|
|
|
765
|
|
|
766 /* Set up the proper status flags for use of a pty. */
|
|
|
767
|
|
|
768 void
|
|
|
769 setup_pty (int fd)
|
|
|
770 {
|
|
|
771 /* I'm told that TOICREMOTE does not mean control chars
|
|
|
772 "can't be sent" but rather that they don't have
|
|
|
773 input-editing or signaling effects.
|
|
|
774 That should be good, because we have other ways
|
|
|
775 to do those things in Emacs.
|
|
|
776 However, telnet mode seems not to work on 4.2.
|
|
|
777 So TIOCREMOTE is turned off now. */
|
|
|
778
|
|
|
779 /* Under hp-ux, if TIOCREMOTE is turned on, some calls
|
|
|
780 will hang. In particular, the "timeout" feature (which
|
|
|
781 causes a read to return if there is no data available)
|
|
|
782 does this. Also it is known that telnet mode will hang
|
|
|
783 in such a way that Emacs must be stopped (perhaps this
|
|
|
784 is the same problem).
|
|
|
785
|
|
|
786 If TIOCREMOTE is turned off, then there is a bug in
|
|
|
787 hp-ux which sometimes loses data. Apparently the
|
|
|
788 code which blocks the master process when the internal
|
|
|
789 buffer fills up does not work. Other than this,
|
|
|
790 though, everything else seems to work fine.
|
|
|
791
|
|
|
792 Since the latter lossage is more benign, we may as well
|
|
|
793 lose that way. -- cph */
|
|
|
794 #if defined (FIONBIO) && defined (SYSV_PTYS)
|
|
|
795 {
|
|
|
796 int on = 1;
|
|
|
797 ioctl (fd, FIONBIO, &on);
|
|
|
798 }
|
|
|
799 #endif
|
|
|
800 #ifdef IBMRTAIX
|
|
|
801 /* On AIX, the parent gets SIGHUP when a pty attached child dies. So, we */
|
|
|
802 /* ignore SIGHUP once we've started a child on a pty. Note that this may */
|
|
|
803 /* cause EMACS not to die when it should, i.e., when its own controlling */
|
|
|
804 /* tty goes away. I've complained to the AIX developers, and they may */
|
|
|
805 /* change this behavior, but I'm not going to hold my breath. */
|
|
|
806 signal (SIGHUP, SIG_IGN);
|
|
|
807 #endif
|
|
|
808 #ifdef TIOCPKT
|
|
|
809 /* In some systems (Linux through 2.0.0, at least), packet mode doesn't
|
|
|
810 get cleared when a pty is closed, so we need to clear it here.
|
|
|
811 Linux pre2.0.13 contained an attempted fix for this (from Ted Ts'o,
|
|
|
812 tytso@mit.edu), but apparently it messed up rlogind and telnetd, so he
|
|
|
813 removed the fix in pre2.0.14. - dkindred@cs.cmu.edu
|
|
|
814 */
|
|
|
815 {
|
|
|
816 int off = 0;
|
|
|
817 ioctl (fd, TIOCPKT, (char *)&off);
|
|
|
818 }
|
|
|
819 #endif
|
|
|
820 }
|
|
|
821 #endif /* HAVE_PTYS */
|
|
|
822
|
|
|
823
|
|
|
824 /************************************************************************/
|
|
|
825 /* TTY control */
|
|
|
826 /************************************************************************/
|
|
|
827
|
|
|
828 /* ------------------------------------------------------ */
|
|
|
829 /* get baud rate */
|
|
|
830 /* ------------------------------------------------------ */
|
|
|
831
|
|
|
832 /* It really makes more sense for the baud-rate to be console-specific
|
|
|
833 and not device-specific, but it's (at least potentially) used for output
|
|
|
834 decisions. */
|
|
|
835
|
|
|
836 void
|
|
|
837 init_baud_rate (struct device *d)
|
|
|
838 {
|
|
|
839 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
|
|
|
840 if (DEVICE_WIN_P (d) || DEVICE_STREAM_P (d))
|
|
|
841 {
|
|
|
842 DEVICE_BAUD_RATE (d) = 38400;
|
|
|
843 return;
|
|
|
844 }
|
|
|
845
|
|
|
846 #ifdef HAVE_TTY
|
|
|
847 assert (DEVICE_TTY_P (d));
|
|
|
848 {
|
|
|
849 int input_fd = CONSOLE_TTY_DATA (con)->infd;
|
|
|
850 #ifdef MSDOS
|
|
|
851 DEVICE_TTY_DATA (d)->ospeed = 15;
|
|
|
852 #elif defined (VMS)
|
|
|
853 struct vms_sensemode sg;
|
|
|
854
|
|
|
855 SYS$QIOW (0, input_fd, IO$_SENSEMODE, &sg, 0, 0,
|
|
|
856 &sg.class, 12, 0, 0, 0, 0 );
|
|
|
857 DEVICE_TTY_DATA (d)->ospeed = sg.xmit_baud;
|
|
|
858 #elif defined (HAVE_TERMIOS)
|
|
|
859 struct termios sg;
|
|
|
860
|
|
|
861 sg.c_cflag = B9600;
|
|
|
862 tcgetattr (input_fd, &sg);
|
|
|
863 DEVICE_TTY_DATA (d)->ospeed = cfgetospeed (&sg);
|
|
|
864 # if defined (USE_GETOBAUD) && defined (getobaud)
|
|
|
865 /* m88k-motorola-sysv3 needs this (ghazi@noc.rutgers.edu) 9/1/94. */
|
|
|
866 if (DEVICE_TTY_DATA (d)->ospeed == 0)
|
|
|
867 DEVICE_TTY_DATA (d)->ospeed = getobaud (sg.c_cflag);
|
|
|
868 # endif
|
|
|
869 #elif defined (HAVE_TERMIO)
|
|
|
870 struct termio sg;
|
|
|
871
|
|
|
872 sg.c_cflag = B9600;
|
|
|
873 # ifdef HAVE_TCATTR
|
|
|
874 tcgetattr (input_fd, &sg);
|
|
|
875 # else
|
|
|
876 ioctl (input_fd, TCGETA, &sg);
|
|
|
877 # endif
|
|
|
878 DEVICE_TTY_DATA (d)->ospeed = sg.c_cflag & CBAUD;
|
|
|
879 #else /* neither VMS nor TERMIOS nor TERMIO */
|
|
|
880 struct sgttyb sg;
|
|
|
881
|
|
|
882 sg.sg_ospeed = B9600;
|
|
|
883 if (ioctl (input_fd, TIOCGETP, &sg) < 0)
|
|
|
884 abort ();
|
|
|
885 DEVICE_TTY_DATA (d)->ospeed = sg.sg_ospeed;
|
|
|
886 #endif
|
|
|
887 }
|
|
|
888
|
|
|
889 DEVICE_BAUD_RATE (d) =
|
|
|
890 (DEVICE_TTY_DATA (d)->ospeed < sizeof baud_convert / sizeof baud_convert[0]
|
|
|
891 ? baud_convert[DEVICE_TTY_DATA (d)->ospeed]
|
|
|
892 : 9600);
|
|
|
893
|
|
|
894 if (DEVICE_BAUD_RATE (d) == 0)
|
|
|
895 DEVICE_BAUD_RATE (d) = 1200;
|
|
|
896 #endif /* HAVE_TTY */
|
|
|
897 }
|
|
|
898
|
|
|
899
|
|
|
900 /* ------------------------------------------------------ */
|
|
|
901 /* SIGIO control */
|
|
|
902 /* ------------------------------------------------------ */
|
|
|
903
|
|
|
904 #ifdef SIGIO
|
|
|
905
|
|
|
906 static void
|
|
|
907 init_sigio_on_device (struct device *d)
|
|
|
908 {
|
|
|
909 int filedesc = DEVICE_INFD (d);
|
|
|
910
|
|
|
911 #if defined (I_SETSIG)
|
|
|
912 ioctl (filedesc, I_GETSIG, &DEVICE_OLD_SIGIO_FLAG (d));
|
|
|
913 DEVICE_OLD_SIGIO_FLAG (d) &= ~S_INPUT;
|
|
|
914 #elif defined (FASYNC)
|
|
|
915 DEVICE_OLD_SIGIO_FLAG (d) =
|
|
|
916 fcntl (filedesc, F_GETFL, 0) & ~FASYNC;
|
|
|
917 #endif
|
|
|
918
|
|
|
919 #if defined (FIOSSAIOOWN)
|
|
|
920 { /* HPUX stuff */
|
|
|
921 int owner = getpid ();
|
|
|
922 int ioctl_status;
|
|
|
923 if (DEVICE_TTY_P (d))
|
|
|
924 {
|
|
|
925 ioctl_status = ioctl (filedesc, FIOGSAIOOWN,
|
|
|
926 &DEVICE_OLD_FCNTL_OWNER (d));
|
|
|
927 ioctl_status = ioctl (filedesc, FIOSSAIOOWN, &owner);
|
|
|
928 }
|
|
|
929 #ifdef HAVE_WINDOW_SYSTEM
|
|
|
930 else if (!DEVICE_STREAM_P (d))
|
|
|
931 {
|
|
|
932 /* Process group for socket should be -pid for delivery to self. */
|
|
|
933 owner = -owner;
|
|
|
934 ioctl_status = ioctl (filedesc, SIOCGPGRP,
|
|
|
935 &DEVICE_OLD_FCNTL_OWNER (d));
|
|
|
936 ioctl_status = ioctl (filedesc, SIOCSPGRP, &owner);
|
|
|
937 }
|
|
|
938 #endif
|
|
|
939 }
|
|
|
940 #elif defined (F_SETOWN) && !defined (F_SETOWN_BUG)
|
|
|
941 DEVICE_OLD_FCNTL_OWNER (d) = fcntl (filedesc, F_GETOWN, 0);
|
|
|
942 # ifdef F_SETOWN_SOCK_NEG
|
|
|
943 /* stdin is a socket here */
|
|
|
944 fcntl (filedesc, F_SETOWN, -getpid ());
|
|
|
945 # else
|
|
|
946 fcntl (filedesc, F_SETOWN, getpid ());
|
|
|
947 # endif
|
|
|
948 #endif
|
|
|
949 }
|
|
|
950
|
|
|
951 static void
|
|
|
952 reset_sigio_on_device (struct device *d)
|
|
|
953 {
|
|
|
954 int filedesc = DEVICE_INFD (d);
|
|
|
955
|
|
|
956 #if defined (FIOSSAIOOWN)
|
|
|
957 { /* HPUX stuff */
|
|
|
958 int owner = getpid ();
|
|
|
959 int ioctl_status;
|
|
|
960 if (DEVICE_TTY_P (d))
|
|
|
961 {
|
|
|
962 ioctl_status = ioctl (filedesc, FIOSSAIOOWN,
|
|
|
963 &DEVICE_OLD_FCNTL_OWNER (d));
|
|
|
964 }
|
|
|
965 #ifdef HAVE_WINDOW_SYSTEM
|
|
|
966 else if (!DEVICE_STREAM_P (d))
|
|
|
967 {
|
|
|
968 /* Process group for socket should be -pid for delivery to self. */
|
|
|
969 owner = -owner;
|
|
|
970 ioctl_status = ioctl (filedesc, SIOCSPGRP,
|
|
|
971 &DEVICE_OLD_FCNTL_OWNER (d));
|
|
|
972 }
|
|
|
973 #endif
|
|
|
974 }
|
|
|
975 #elif defined (F_SETOWN) && !defined (F_SETOWN_BUG)
|
|
|
976 fcntl (filedesc, F_SETOWN, DEVICE_OLD_FCNTL_OWNER (d));
|
|
|
977 #endif
|
|
|
978 }
|
|
|
979
|
|
|
980 static void
|
|
|
981 request_sigio_on_device (struct device *d)
|
|
|
982 {
|
|
|
983 int filedesc = DEVICE_INFD (d);
|
|
|
984
|
|
|
985 /* prevent redundant ioctl()s, which may cause syslog messages
|
|
|
986 (e.g. on Solaris) */
|
|
|
987 if (d->sigio_enabled)
|
|
|
988 return;
|
|
|
989
|
|
|
990 #if defined (I_SETSIG)
|
|
|
991 ioctl (filedesc, I_SETSIG, DEVICE_OLD_SIGIO_FLAG (d) | S_INPUT);
|
|
|
992 #elif defined (FASYNC)
|
|
|
993 fcntl (filedesc, F_SETFL, DEVICE_OLD_SIGIO_FLAG (d) | FASYNC);
|
|
|
994 #elif defined (FIOSSAIOSTAT)
|
|
|
995 {
|
|
|
996 /* DG: Changed for HP-UX. HP-UX uses different IOCTLs for
|
|
|
997 sockets and other devices for some bizarre reason. We guess
|
|
|
998 that an X device is a socket, and tty devices aren't. We then
|
|
|
999 use the following crud to do the appropriate thing. */
|
|
|
1000 int on = 1;
|
|
|
1001 int ioctl_status; /* ####DG: check if IOCTL succeeds here. */
|
|
|
1002 int socket_pgroup = -getpid ();
|
|
|
1003
|
|
|
1004 if (DEVICE_TTY_P (d))
|
|
|
1005 {
|
|
|
1006 ioctl_status = ioctl (filedesc, FIOSSAIOSTAT, &on);
|
|
|
1007 }
|
|
|
1008 #ifdef HAVE_WINDOW_SYSTEM
|
|
|
1009 else if (!DEVICE_STREAM_P (d))
|
|
|
1010 {
|
|
|
1011 ioctl_status = ioctl (filedesc, FIOASYNC, &on);
|
|
|
1012 ioctl_status = ioctl (filedesc, SIOCSPGRP, &socket_pgroup);
|
|
|
1013 }
|
|
|
1014 #endif
|
|
|
1015 }
|
|
|
1016 #elif defined (FIOASYNC)
|
|
|
1017 {
|
|
|
1018 int on = 1;
|
|
|
1019 ioctl (filedesc, FIOASYNC, &on);
|
|
|
1020 }
|
|
|
1021 #endif
|
|
|
1022
|
|
|
1023 #if defined (_CX_UX) /* #### Is this crap necessary? */
|
|
|
1024 EMACS_UNBLOCK_SIGNAL (SIGIO);
|
|
|
1025 #endif
|
|
|
1026
|
|
|
1027 d->sigio_enabled = 1;
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 static void
|
|
|
1031 unrequest_sigio_on_device (struct device *d)
|
|
|
1032 {
|
|
|
1033 int filedesc = DEVICE_INFD (d);
|
|
|
1034
|
|
|
1035 /* prevent redundant ioctl()s, which may cause syslog messages
|
|
|
1036 (e.g. on Solaris) */
|
|
|
1037 if (!d->sigio_enabled)
|
|
|
1038 return;
|
|
|
1039
|
|
|
1040 #if defined (I_SETSIG)
|
|
|
1041 ioctl (filedesc, I_SETSIG, DEVICE_OLD_SIGIO_FLAG (d));
|
|
|
1042 #elif defined (FASYNC)
|
|
|
1043 fcntl (filedesc, F_SETFL, DEVICE_OLD_SIGIO_FLAG (d));
|
|
|
1044 #elif defined (FIOSSAIOSTAT)
|
|
|
1045 {
|
|
|
1046 /* DG: Changed for HP-UX. HP-UX uses different IOCTLs for
|
|
|
1047 sockets and other devices for some bizarre reason. We guess
|
|
|
1048 that an X device is a socket, and tty devices aren't. We then
|
|
|
1049 use the following crud to do the appropriate thing. */
|
|
|
1050
|
|
|
1051 int off = 0;
|
|
|
1052 int socket_pgroup = 0;
|
|
|
1053 int ioctl_status;
|
|
|
1054
|
|
|
1055 /* See comment for request_sigio_on_device */
|
|
|
1056
|
|
|
1057 if (DEVICE_TTY_P (d))
|
|
|
1058 {
|
|
|
1059 ioctl_status = ioctl (filedesc, FIOSSAIOSTAT, &off);
|
|
|
1060 }
|
|
|
1061 else
|
|
|
1062 {
|
|
|
1063 ioctl_status = ioctl (filedesc, FIOASYNC, &off);
|
|
|
1064 ioctl_status = ioctl (filedesc, SIOCSPGRP, &socket_pgroup);
|
|
|
1065 }
|
|
|
1066 }
|
|
|
1067 #elif defined (FIOASYNC)
|
|
|
1068 {
|
|
|
1069 int off = 0;
|
|
|
1070 ioctl (filedesc, FIOASYNC, &off);
|
|
|
1071 }
|
|
|
1072 #endif
|
|
|
1073
|
|
|
1074 d->sigio_enabled = 0;
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 void
|
|
|
1078 request_sigio (void)
|
|
|
1079 {
|
|
|
1080 Lisp_Object devcons, concons;
|
|
|
1081
|
|
|
1082 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
1083 {
|
|
|
1084 struct device *d;
|
|
|
1085
|
|
|
1086 d = XDEVICE (XCAR (devcons));
|
|
|
1087
|
|
|
1088 if (!DEVICE_STREAM_P (d))
|
|
|
1089 request_sigio_on_device (d);
|
|
|
1090 }
|
|
|
1091 }
|
|
|
1092
|
|
|
1093 void
|
|
|
1094 unrequest_sigio (void)
|
|
|
1095 {
|
|
|
1096 Lisp_Object devcons, concons;
|
|
|
1097
|
|
|
1098 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
1099 {
|
|
|
1100 struct device *d;
|
|
|
1101
|
|
|
1102 d = XDEVICE (XCAR (devcons));
|
|
|
1103
|
|
|
1104 if (!DEVICE_STREAM_P (d))
|
|
|
1105 unrequest_sigio_on_device (d);
|
|
|
1106 }
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 #endif /* SIGIO */
|
|
|
1110
|
|
|
1111 /* ------------------------------------------------------ */
|
|
|
1112 /* Changing Emacs's process group */
|
|
|
1113 /* ------------------------------------------------------ */
|
|
|
1114
|
|
|
1115 /* Saving and restoring the process group of Emacs's terminal. */
|
|
|
1116
|
|
|
1117 /* On some systems, apparently (?!) Emacs must be in its own process
|
|
|
1118 group in order to receive SIGIO correctly. On other systems
|
|
|
1119 (e.g. Solaris), it's not required and doing it makes things
|
|
|
1120 get fucked up. So, we only do it when
|
|
|
1121 SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP is defined. Basically,
|
|
|
1122 this is only required for BSD 4.2 systems. (Actually, I bet
|
|
|
1123 we don't have to do this at all -- those systems also
|
|
|
1124 required interrupt input, which we don't support.)
|
|
|
1125
|
|
|
1126 If Emacs was in its own process group (i.e. inherited_pgroup ==
|
|
|
1127 getpid ()), then we know we're running under a shell with job
|
|
|
1128 control (Emacs would never be run as part of a pipeline).
|
|
|
1129 Everything is fine.
|
|
|
1130
|
|
|
1131 If Emacs was not in its own process group, then we know we're
|
|
|
1132 running under a shell (or a caller) that doesn't know how to
|
|
|
1133 separate itself from Emacs (like sh). Emacs must be in its own
|
|
|
1134 process group in order to receive SIGIO correctly. In this
|
|
|
1135 situation, we put ourselves in our own pgroup, forcibly set the
|
|
|
1136 tty's pgroup to our pgroup, and make sure to restore and reinstate
|
|
|
1137 the tty's pgroup just like any other terminal setting. If
|
|
|
1138 inherited_group was not the tty's pgroup, then we'll get a
|
|
|
1139 SIGTTmumble when we try to change the tty's pgroup, and a CONT if
|
|
|
1140 it goes foreground in the future, which is what should happen. */
|
|
|
1141
|
|
|
1142 #ifdef SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP
|
|
|
1143
|
|
|
1144 static int inherited_pgroup;
|
|
|
1145 static int inherited_tty_pgroup;
|
|
|
1146
|
|
|
1147 #endif
|
|
|
1148
|
|
|
1149 void
|
|
|
1150 munge_tty_process_group (void)
|
|
|
1151 {
|
|
|
1152 #ifdef SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP
|
|
|
1153 if (noninteractive)
|
|
|
1154 return;
|
|
|
1155
|
|
|
1156 /* Only do this munging if we have a device on the controlling
|
|
|
1157 terminal. See the large comment below. */
|
|
|
1158
|
|
|
1159 if (CONSOLEP (Vcontrolling_terminal) &&
|
|
|
1160 CONSOLE_LIVE_P (XCONSOLE (Vcontrolling_terminal)))
|
|
|
1161 {
|
|
|
1162 int fd = open ("/dev/tty", O_RDWR, 0);
|
|
|
1163 int me = getpid ();
|
|
|
1164 EMACS_BLOCK_SIGNAL (SIGTTOU);
|
|
|
1165 EMACS_SET_TTY_PROCESS_GROUP (fd, &me);
|
|
|
1166 EMACS_UNBLOCK_SIGNAL (SIGTTOU);
|
|
|
1167 close (fd);
|
|
|
1168 }
|
|
|
1169 #endif
|
|
|
1170 }
|
|
|
1171
|
|
|
1172 /* Split off the foreground process group to Emacs alone.
|
|
|
1173 When we are in the foreground, but not started in our own process
|
|
|
1174 group, redirect the TTY to point to our own process group. We need
|
|
|
1175 to be in our own process group to receive SIGIO properly. */
|
|
|
1176 static void
|
|
|
1177 munge_process_groups (void)
|
|
|
1178 {
|
|
|
1179 #ifdef SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP
|
|
|
1180 if (noninteractive)
|
|
|
1181 return;
|
|
|
1182
|
|
|
1183 EMACS_SEPARATE_PROCESS_GROUP ();
|
|
|
1184
|
|
|
1185 munge_tty_process_group ();
|
|
|
1186 #endif
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 void
|
|
|
1190 unmunge_tty_process_group (void)
|
|
|
1191 {
|
|
|
1192 #ifdef SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP
|
|
|
1193 {
|
|
|
1194 int fd = open ("/dev/tty", O_RDWR, 0);
|
|
|
1195 EMACS_BLOCK_SIGNAL (SIGTTOU);
|
|
|
1196 EMACS_SET_TTY_PROCESS_GROUP (fd, &inherited_tty_pgroup);
|
|
|
1197 EMACS_UNBLOCK_SIGNAL (SIGTTOU);
|
|
|
1198 close (fd);
|
|
|
1199 }
|
|
|
1200 #endif
|
|
|
1201 }
|
|
|
1202
|
|
|
1203 /* Set the tty to our original foreground group.
|
|
|
1204 Also restore the original process group (put us back into sh's
|
|
|
1205 process group), so that ^Z will suspend both us and sh. */
|
|
|
1206 static void
|
|
|
1207 unmunge_process_groups (void)
|
|
|
1208 {
|
|
|
1209 #ifdef SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP
|
|
|
1210 if (noninteractive)
|
|
|
1211 return;
|
|
|
1212
|
|
|
1213 unmunge_tty_process_group ();
|
|
|
1214
|
|
|
1215 EMACS_SET_PROCESS_GROUP (inherited_pgroup);
|
|
|
1216 #endif
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 /* According to some old wisdom, we need to be in a separate process
|
|
|
1220 group for SIGIO to work correctly (at least on some systems ...).
|
|
|
1221 So go ahead and put ourselves into our own process group. This
|
|
|
1222 will fail if we're already in our own process group, but who cares.
|
|
|
1223 Also record whether we were in our own process group. (In general,
|
|
|
1224 we will already be in our own process group if we were started from
|
|
|
1225 a job-control shell like csh, but not if we were started from sh).
|
|
|
1226
|
|
|
1227 If we succeeded in changing our process group, then we will no
|
|
|
1228 longer be in the foreground process group of our controlling
|
|
|
1229 terminal. Therefore, if we have a console open onto this terminal,
|
|
|
1230 we have to change the controlling terminal's foreground process
|
|
|
1231 group (otherwise we will get stopped with a SIGTTIN signal when
|
|
|
1232 attempting to read from the terminal). It's important,
|
|
|
1233 however, that we do this *only* when we have a console open onto
|
|
|
1234 the terminal. It's a decidedly bad idea to do so otherwise,
|
|
|
1235 especially if XEmacs was started from the background. */
|
|
|
1236
|
|
|
1237 void
|
|
|
1238 init_process_group (void)
|
|
|
1239 {
|
|
|
1240 #ifdef SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP
|
|
|
1241 if (! noninteractive)
|
|
|
1242 {
|
|
|
1243 int fd = open ("/dev/tty", O_RDWR, 0);
|
|
|
1244 inherited_pgroup = EMACS_GET_PROCESS_GROUP ();
|
|
|
1245 EMACS_GET_TTY_PROCESS_GROUP (fd, &inherited_tty_pgroup);
|
|
|
1246 close (fd);
|
|
|
1247 EMACS_SEPARATE_PROCESS_GROUP ();
|
|
|
1248 }
|
|
|
1249 #endif
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 void
|
|
|
1253 disconnect_controlling_terminal (void)
|
|
|
1254 {
|
|
|
1255 # ifdef HAVE_SETSID
|
|
|
1256 /* Controlling terminals are attached to a session.
|
|
|
1257 Create a new session for us; it will have no controlling
|
|
|
1258 terminal. This also, of course, puts us in our own
|
|
|
1259 process group. */
|
|
|
1260 setsid ();
|
|
|
1261 # else
|
|
|
1262 /* Put us in our own process group. */
|
|
|
1263 EMACS_SEPARATE_PROCESS_GROUP ();
|
|
|
1264 # if defined (TIOCNOTTY)
|
|
|
1265 /* This is the older way of disconnecting the controlling
|
|
|
1266 terminal, on 4.3 BSD. We must open /dev/tty; using
|
|
|
1267 filedesc 0 is not sufficient because it could be
|
|
|
1268 something else (e.g. our stdin was redirected to
|
|
|
1269 another terminal).
|
|
|
1270 */
|
|
|
1271 {
|
|
|
1272 int j = open ("/dev/tty", O_RDWR, 0);
|
|
|
1273 ioctl (j, TIOCNOTTY, 0);
|
|
|
1274 close (j);
|
|
|
1275 }
|
|
|
1276 # endif /* TIOCNOTTY */
|
|
|
1277 /*
|
|
|
1278 On systems without TIOCNOTTY and without
|
|
|
1279 setsid(), we don't need to do anything more to
|
|
|
1280 disconnect our controlling terminal. Here is
|
|
|
1281 what the man page for termio(7) from a SYSV 3.2
|
|
|
1282 system says:
|
|
|
1283
|
|
|
1284 "The first terminal file opened by the process group leader
|
|
|
1285 of a terminal file not already associated with a process
|
|
|
1286 group becomes the control terminal for that process group.
|
|
|
1287 The control terminal plays a special role in handling quit
|
|
|
1288 and interrupt signals, as discussed below. The control
|
|
|
1289 terminal is inherited by a child process during a fork(2).
|
|
|
1290 A process can break this association by changing its process
|
|
|
1291 group using setpgrp(2)."
|
|
|
1292
|
|
|
1293 */
|
|
|
1294 # endif /* not HAVE_SETSID */
|
|
|
1295 }
|
|
|
1296
|
|
|
1297
|
|
|
1298 /* ------------------------------------------------------ */
|
|
|
1299 /* Getting and setting emacs_tty structures */
|
|
|
1300 /* ------------------------------------------------------ */
|
|
|
1301
|
|
|
1302 /* Set *TC to the parameters associated with the terminal FD.
|
|
|
1303 Return zero if all's well, or -1 if we ran into an error we
|
|
|
1304 couldn't deal with. */
|
|
|
1305 int
|
|
|
1306 emacs_get_tty (int fd, struct emacs_tty *settings)
|
|
|
1307 {
|
|
|
1308 /* Retrieve the primary parameters - baud rate, character size, etcetera. */
|
|
|
1309 #ifdef HAVE_TCATTR
|
|
|
1310 /* We have those nifty POSIX tcmumbleattr functions. */
|
|
|
1311 if (tcgetattr (fd, &settings->main) < 0)
|
|
|
1312 return -1;
|
|
|
1313
|
|
|
1314 #else
|
|
|
1315 #ifdef HAVE_TERMIO
|
|
|
1316 /* The SYSV-style interface? */
|
|
|
1317 if (ioctl (fd, TCGETA, &settings->main) < 0)
|
|
|
1318 return -1;
|
|
|
1319
|
|
|
1320 #else
|
|
|
1321 #ifdef VMS
|
|
|
1322 /* Vehemently Monstrous System? :-) */
|
|
|
1323 if (! (SYS$QIOW (0, fd, IO$_SENSEMODE, settings, 0, 0,
|
|
|
1324 &settings->main.class, 12, 0, 0, 0, 0)
|
|
|
1325 & 1))
|
|
|
1326 return -1;
|
|
|
1327
|
|
|
1328 #else
|
|
|
1329 #ifndef MSDOS
|
|
|
1330 /* I give up - I hope you have the BSD ioctls. */
|
|
|
1331 if (ioctl (fd, TIOCGETP, &settings->main) < 0)
|
|
|
1332 return -1;
|
|
|
1333 #endif /* not MSDOS */
|
|
|
1334 #endif /* not VMS */
|
|
|
1335 #endif /* HAVE_TERMIO */
|
|
|
1336 #endif /* HAVE_TCATTR */
|
|
|
1337
|
|
|
1338 /* Suivant - Do we have to get struct ltchars data? */
|
|
|
1339 #ifdef HAVE_LTCHARS
|
|
|
1340 if (ioctl (fd, TIOCGLTC, &settings->ltchars) < 0)
|
|
|
1341 return -1;
|
|
|
1342 #endif
|
|
|
1343
|
|
|
1344 /* How about a struct tchars and a wordful of lmode bits? */
|
|
|
1345 #ifdef HAVE_TCHARS
|
|
|
1346 if (ioctl (fd, TIOCGETC, &settings->tchars) < 0
|
|
|
1347 || ioctl (fd, TIOCLGET, &settings->lmode) < 0)
|
|
|
1348 return -1;
|
|
|
1349 #endif
|
|
|
1350
|
|
|
1351 /* We have survived the tempest. */
|
|
|
1352 return 0;
|
|
|
1353 }
|
|
|
1354
|
|
|
1355 /* Set the parameters of the tty on FD according to the contents of
|
|
|
1356 *SETTINGS. If FLUSHP is non-zero, we discard input.
|
|
|
1357 Return 0 if all went well, and -1 if anything failed. */
|
|
|
1358
|
|
|
1359 int
|
|
|
1360 emacs_set_tty (int fd, struct emacs_tty *settings, int flushp)
|
|
|
1361 {
|
|
|
1362 /* Set the primary parameters - baud rate, character size, etcetera. */
|
|
|
1363 #ifdef HAVE_TCATTR
|
|
|
1364 int i;
|
|
|
1365 /* We have those nifty POSIX tcmumbleattr functions.
|
|
|
1366 William J. Smith <wjs@wiis.wang.com> writes:
|
|
|
1367 "POSIX 1003.1 defines tcsetattr() to return success if it was
|
|
|
1368 able to perform any of the requested actions, even if some
|
|
|
1369 of the requested actions could not be performed.
|
|
|
1370 We must read settings back to ensure tty setup properly.
|
|
|
1371 AIX requires this to keep tty from hanging occasionally." */
|
|
|
1372 /* This makes sure that we don't loop indefinitely in here. */
|
|
|
1373 for (i = 0 ; i < 10 ; i++)
|
|
|
1374 if (tcsetattr (fd, flushp ? TCSAFLUSH : TCSADRAIN, &settings->main) < 0)
|
|
|
1375 {
|
|
|
1376 if (errno == EINTR)
|
|
|
1377 continue;
|
|
|
1378 else
|
|
|
1379 return -1;
|
|
|
1380 }
|
|
|
1381 else
|
|
|
1382 {
|
|
|
1383 struct termios new;
|
|
|
1384
|
|
|
1385 /* Get the current settings, and see if they're what we asked for. */
|
|
|
1386 tcgetattr (fd, &new);
|
|
|
1387 /* We cannot use memcmp on the whole structure here because under
|
|
|
1388 * aix386 the termios structure has some reserved field that may
|
|
|
1389 * not be filled in.
|
|
|
1390 */
|
|
|
1391 if ( new.c_iflag == settings->main.c_iflag
|
|
|
1392 && new.c_oflag == settings->main.c_oflag
|
|
|
1393 && new.c_cflag == settings->main.c_cflag
|
|
|
1394 && new.c_lflag == settings->main.c_lflag
|
|
|
1395 && memcmp(new.c_cc, settings->main.c_cc, NCCS) == 0)
|
|
|
1396 break;
|
|
|
1397 else
|
|
|
1398 continue;
|
|
|
1399 }
|
|
|
1400 #else
|
|
|
1401 #ifdef HAVE_TERMIO
|
|
|
1402 /* The SYSV-style interface? */
|
|
|
1403 if (ioctl (fd, flushp ? TCSETAF : TCSETAW, &settings->main) < 0)
|
|
|
1404 return -1;
|
|
|
1405
|
|
|
1406 #else
|
|
|
1407 #ifdef VMS
|
|
|
1408 /* Vehemently Monstrous System? :-) */
|
|
|
1409 if (! (SYS$QIOW (0, fd, IO$_SETMODE, &input_iosb, 0, 0,
|
|
|
1410 &settings->main.class, 12, 0, 0, 0, 0)
|
|
|
1411 & 1))
|
|
|
1412 return -1;
|
|
|
1413
|
|
|
1414 #else
|
|
|
1415 #ifndef MSDOS
|
|
|
1416 /* I give up - I hope you have the BSD ioctls. */
|
|
|
1417 if (ioctl (fd, (flushp) ? TIOCSETP : TIOCSETN, &settings->main) < 0)
|
|
|
1418 return -1;
|
|
|
1419 #endif /* not MSDOS */
|
|
|
1420 #endif /* VMS */
|
|
|
1421 #endif /* HAVE_TERMIO */
|
|
|
1422 #endif /* HAVE_TCATTR */
|
|
|
1423
|
|
|
1424 /* Suivant - Do we have to get struct ltchars data? */
|
|
|
1425 #ifdef HAVE_LTCHARS
|
|
|
1426 if (ioctl (fd, TIOCSLTC, &settings->ltchars) < 0)
|
|
|
1427 return -1;
|
|
|
1428 #endif
|
|
|
1429
|
|
|
1430 /* How about a struct tchars and a wordful of lmode bits? */
|
|
|
1431 #ifdef HAVE_TCHARS
|
|
|
1432 if (ioctl (fd, TIOCSETC, &settings->tchars) < 0
|
|
|
1433 || ioctl (fd, TIOCLSET, &settings->lmode) < 0)
|
|
|
1434 return -1;
|
|
|
1435 #endif
|
|
|
1436
|
|
|
1437 /* We have survived the tempest. */
|
|
|
1438 return 0;
|
|
|
1439 }
|
|
|
1440
|
|
|
1441
|
|
|
1442 /* ------------------------------------------------------ */
|
|
|
1443 /* Initializing a device */
|
|
|
1444 /* ------------------------------------------------------ */
|
|
|
1445
|
|
|
1446 #ifdef HAVE_TTY
|
|
|
1447
|
|
|
1448 /* This may also be defined in stdio,
|
|
|
1449 but if so, this does no harm,
|
|
|
1450 and using the same name avoids wasting the other one's space. */
|
|
|
1451
|
|
|
1452 #if ((defined(USG) || defined(DGUX)) && !defined(__STDC__))
|
|
|
1453 char _sobuf[BUFSIZ+8];
|
|
|
1454 #elif (defined(USG) && !defined(LINUX) && !defined(_SCO_DS)) || defined(IRIX5)
|
|
|
1455 extern unsigned char _sobuf[BUFSIZ+8];
|
|
|
1456 #else
|
|
|
1457 char _sobuf[BUFSIZ];
|
|
|
1458 #endif
|
|
|
1459
|
|
|
1460 #if defined (TIOCGLTC) && defined (HAVE_LTCHARS) /* HAVE_LTCHARS */
|
|
|
1461 static struct ltchars new_ltchars = {-1,-1,-1,-1,-1,-1};
|
|
|
1462 #endif
|
|
|
1463 #ifdef TIOCGETC /* HAVE_TCHARS */
|
|
|
1464 #ifdef HAVE_TCHARS
|
|
|
1465 static struct tchars new_tchars = {-1,-1,-1,-1,-1,-1};
|
|
|
1466 #endif
|
|
|
1467 #endif
|
|
|
1468
|
|
|
1469 static void
|
|
|
1470 tty_init_sys_modes_on_device (struct device *d)
|
|
|
1471 {
|
|
|
1472 struct emacs_tty tty;
|
|
|
1473 int input_fd, output_fd;
|
|
|
1474 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
|
|
|
1475
|
|
|
1476 input_fd = CONSOLE_TTY_DATA (con)->infd;
|
|
|
1477 output_fd = CONSOLE_TTY_DATA (con)->outfd;
|
|
|
1478
|
|
|
1479 EMACS_GET_TTY (input_fd, &CONSOLE_TTY_DATA (con)->old_tty);
|
|
|
1480 tty = CONSOLE_TTY_DATA (con)->old_tty;
|
|
|
1481
|
|
|
1482 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
|
|
|
1483 #ifdef DGUX
|
|
|
1484 /* This allows meta to be sent on 8th bit. */
|
|
|
1485 tty.main.c_iflag &= ~INPCK; /* don't check input for parity */
|
|
|
1486 #endif
|
|
|
1487 tty.main.c_iflag |= (IGNBRK); /* Ignore break condition */
|
|
|
1488 tty.main.c_iflag &= ~ICRNL; /* Disable map of CR to NL on input */
|
|
|
1489 #ifdef ISTRIP
|
|
|
1490 tty.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */
|
|
|
1491 #endif
|
|
|
1492 tty.main.c_lflag &= ~ECHO; /* Disable echo */
|
|
|
1493 tty.main.c_lflag &= ~ICANON; /* Disable erase/kill processing */
|
|
|
1494 #ifdef IEXTEN
|
|
|
1495 tty.main.c_lflag &= ~IEXTEN; /* Disable other editing characters. */
|
|
|
1496 #endif
|
|
|
1497 tty.main.c_lflag |= ISIG; /* Enable signals */
|
|
|
1498 if (TTY_FLAGS (con).flow_control)
|
|
|
1499 {
|
|
|
1500 tty.main.c_iflag |= IXON; /* Enable start/stop output control */
|
|
|
1501 #ifdef IXANY
|
|
|
1502 tty.main.c_iflag &= ~IXANY;
|
|
|
1503 #endif /* IXANY */
|
|
|
1504 }
|
|
|
1505 else
|
|
|
1506 tty.main.c_iflag &= ~IXON; /* Disable start/stop output control */
|
|
|
1507 tty.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL
|
|
|
1508 on output */
|
|
|
1509 tty.main.c_oflag &= ~TAB3; /* Disable tab expansion */
|
|
|
1510 #ifdef CS8
|
|
|
1511 if (TTY_FLAGS (con).meta_key)
|
|
|
1512 {
|
|
|
1513 tty.main.c_cflag |= CS8; /* allow 8th bit on input */
|
|
|
1514 tty.main.c_cflag &= ~PARENB;/* Don't check parity */
|
|
|
1515 }
|
|
|
1516 #endif
|
|
|
1517 if (CONSOLE_TTY_DATA (con)->controlling_terminal)
|
|
|
1518 {
|
|
|
1519 tty.main.c_cc[VINTR] =
|
|
|
1520 CONSOLE_QUIT_CHAR (con); /* C-g (usually) gives SIGINT */
|
|
|
1521 /* Set up C-g for both SIGQUIT and SIGINT.
|
|
|
1522 We don't know which we will get, but we handle both alike
|
|
|
1523 so which one it really gives us does not matter. */
|
|
|
1524 tty.main.c_cc[VQUIT] = CONSOLE_QUIT_CHAR (con);
|
|
|
1525 }
|
|
|
1526 else
|
|
|
1527 {
|
|
|
1528 tty.main.c_cc[VINTR] = CDISABLE;
|
|
|
1529 tty.main.c_cc[VQUIT] = CDISABLE;
|
|
|
1530 }
|
|
|
1531 tty.main.c_cc[VMIN] = 1; /* Input should wait for at
|
|
|
1532 least 1 char */
|
|
|
1533 tty.main.c_cc[VTIME] = 0; /* no matter how long that takes. */
|
|
|
1534 #ifdef VSWTCH
|
|
|
1535 tty.main.c_cc[VSWTCH] = CDISABLE; /* Turn off shell layering use
|
|
|
1536 of C-z */
|
|
|
1537 #endif /* VSWTCH */
|
|
|
1538 /* There was some conditionalizing here on (mips or TCATTR), but
|
|
|
1539 I think that's wrong. There was one report of C-y (DSUSP) not being
|
|
|
1540 disabled on HP9000s700 systems, and this might fix it. */
|
|
|
1541 #ifdef VSUSP
|
|
|
1542 tty.main.c_cc[VSUSP] = CDISABLE;/* Turn off mips handling of C-z. */
|
|
|
1543 #endif /* VSUSP */
|
|
|
1544 #ifdef V_DSUSP
|
|
|
1545 tty.main.c_cc[V_DSUSP] = CDISABLE; /* Turn off mips handling of C-y. */
|
|
|
1546 #endif /* V_DSUSP */
|
|
|
1547 #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */
|
|
|
1548 tty.main.c_cc[VDSUSP] = CDISABLE;
|
|
|
1549 #endif /* VDSUSP */
|
|
|
1550 #ifdef VLNEXT
|
|
|
1551 tty.main.c_cc[VLNEXT] = CDISABLE;
|
|
|
1552 #endif /* VLNEXT */
|
|
|
1553 #ifdef VREPRINT
|
|
|
1554 tty.main.c_cc[VREPRINT] = CDISABLE;
|
|
|
1555 #endif /* VREPRINT */
|
|
|
1556 #ifdef VWERASE
|
|
|
1557 tty.main.c_cc[VWERASE] = CDISABLE;
|
|
|
1558 #endif /* VWERASE */
|
|
|
1559 #ifdef VDISCARD
|
|
|
1560 tty.main.c_cc[VDISCARD] = CDISABLE;
|
|
|
1561 #endif /* VDISCARD */
|
|
|
1562 #ifdef VSTART
|
|
|
1563 tty.main.c_cc[VSTART] = CDISABLE;
|
|
|
1564 #endif /* VSTART */
|
|
|
1565 #ifdef VSTRT
|
|
|
1566 tty.main.c_cc[VSTRT] = CDISABLE; /* called VSTRT on some systems */
|
|
|
1567 #endif /* VSTART */
|
|
|
1568 #ifdef VSTOP
|
|
|
1569 tty.main.c_cc[VSTOP] = CDISABLE;
|
|
|
1570 #endif /* VSTOP */
|
|
|
1571 #ifdef SET_LINE_DISCIPLINE
|
|
|
1572 /* Need to explicitely request TERMIODISC line discipline or
|
|
|
1573 Ultrix's termios does not work correctly. */
|
|
|
1574 tty.main.c_line = SET_LINE_DISCIPLINE;
|
|
|
1575 #endif
|
|
|
1576
|
|
|
1577 #ifdef AIX
|
|
|
1578 #ifndef IBMR2AIX
|
|
|
1579 /* AIX enhanced edit loses NULs, so disable it. */
|
|
|
1580 tty.main.c_line = 0;
|
|
|
1581 tty.main.c_iflag &= ~ASCEDIT;
|
|
|
1582 #else
|
|
|
1583 tty.main.c_cc[VSTRT] = 255;
|
|
|
1584 tty.main.c_cc[VSTOP] = 255;
|
|
|
1585 tty.main.c_cc[VSUSP] = 255;
|
|
|
1586 tty.main.c_cc[VDSUSP] = 255;
|
|
|
1587 #endif /* IBMR2AIX */
|
|
|
1588 /* Also, PTY overloads NUL and BREAK.
|
|
|
1589 don't ignore break, but don't signal either, so it looks like NUL.
|
|
|
1590 This really serves a purpose only if running in an XTERM window
|
|
|
1591 or via TELNET or the like, but does no harm elsewhere. */
|
|
|
1592 tty.main.c_iflag &= ~IGNBRK;
|
|
|
1593 tty.main.c_iflag &= ~BRKINT;
|
|
|
1594 #endif /* AIX */
|
|
|
1595 #else /* if not HAVE_TERMIO */
|
|
|
1596 #ifndef MSDOS
|
|
|
1597 tty.main.sg_flags &= ~(ECHO | CRMOD | XTABS);
|
|
|
1598 if (TTY_FLAGS (con).meta_key)
|
|
|
1599 tty.main.sg_flags |= ANYP;
|
|
|
1600 /* #### should we be using RAW mode here? */
|
|
|
1601 tty.main.sg_flags |= /* interrupt_input ? RAW : */ CBREAK;
|
|
|
1602 #endif /* not MSDOS */
|
|
|
1603 #endif /* not HAVE_TERMIO */
|
|
|
1604
|
|
|
1605 /* If going to use CBREAK mode, we must request C-g to interrupt
|
|
|
1606 and turn off start and stop chars, etc. If not going to use
|
|
|
1607 CBREAK mode, do this anyway so as to turn off local flow
|
|
|
1608 control for user coming over network on 4.2; in this case,
|
|
|
1609 only t_stopc and t_startc really matter. */
|
|
|
1610 #ifndef HAVE_TERMIO
|
|
|
1611 #ifdef HAVE_TCHARS
|
|
|
1612 /* Note: if not using CBREAK mode, it makes no difference how we
|
|
|
1613 set this */
|
|
|
1614 tty.tchars = new_tchars;
|
|
|
1615 tty.tchars.t_intrc = CONSOLE_QUIT_CHAR (con);
|
|
|
1616 if (TTY_FLAGS (con).flow_control)
|
|
|
1617 {
|
|
|
1618 tty.tchars.t_startc = '\021';
|
|
|
1619 tty.tchars.t_stopc = '\023';
|
|
|
1620 }
|
|
|
1621
|
|
|
1622 tty.lmode = LDECCTQ | LLITOUT | LPASS8 | LNOFLSH |
|
|
|
1623 CONSOLE_TTY_DATA (con)->old_tty.lmode;
|
|
|
1624
|
|
|
1625 #if defined (ultrix) || defined (__bsdi__)
|
|
|
1626 /* Under Ultrix 4.2a, leaving this out doesn't seem to hurt
|
|
|
1627 anything, and leaving it in breaks the meta key. Go figure. */
|
|
|
1628 /* Turning off ONLCR is enough under BSD/386. Leave the general
|
|
|
1629 output post-processing flag alone since for some reason it
|
|
|
1630 doesn't get reset after XEmacs goes away. */
|
|
|
1631 tty.lmode &= ~LLITOUT;
|
|
|
1632 #endif
|
|
|
1633
|
|
|
1634 #endif /* HAVE_TCHARS */
|
|
|
1635 #endif /* not HAVE_TERMIO */
|
|
|
1636
|
|
|
1637 #ifdef HAVE_LTCHARS
|
|
|
1638 tty.ltchars = new_ltchars;
|
|
|
1639 #endif /* HAVE_LTCHARS */
|
|
|
1640 #ifdef MSDOS
|
|
|
1641 internal_terminal_init ();
|
|
|
1642 dos_ttraw ();
|
|
|
1643 #endif
|
|
|
1644
|
|
|
1645 EMACS_SET_TTY (input_fd, &tty, 0);
|
|
|
1646
|
|
|
1647 /* This code added to insure that, if flow-control is not to be used,
|
|
|
1648 we have an unlocked terminal at the start. */
|
|
|
1649
|
|
|
1650 #ifdef TCXONC
|
|
|
1651 if (!TTY_FLAGS (con).flow_control) ioctl (input_fd, TCXONC, 1);
|
|
|
1652 #endif
|
|
|
1653 #ifndef APOLLO
|
|
|
1654 #ifdef TIOCSTART
|
|
|
1655 if (!TTY_FLAGS (con).flow_control) ioctl (input_fd, TIOCSTART, 0);
|
|
|
1656 #endif
|
|
|
1657 #endif
|
|
|
1658
|
|
|
1659 #if defined (HAVE_TERMIOS) || defined (HPUX9)
|
|
|
1660 #ifdef TCOON
|
|
|
1661 if (!TTY_FLAGS (con).flow_control) tcflow (input_fd, TCOON);
|
|
|
1662 #endif
|
|
|
1663 #endif
|
|
|
1664 #ifdef AIXHFT
|
|
|
1665 hft_init (con);
|
|
|
1666 #ifdef IBMR2AIX
|
|
|
1667 {
|
|
|
1668 /* IBM's HFT device usually thinks a ^J should be LF/CR.
|
|
|
1669 We need it to be only LF. This is the way that is
|
|
|
1670 done. */
|
|
|
1671 struct termio tty;
|
|
|
1672
|
|
|
1673 if (ioctl (output_fd, HFTGETID, &tty) != -1)
|
|
|
1674 write (output_fd, "\033[20l", 5);
|
|
|
1675 }
|
|
|
1676 #endif
|
|
|
1677 #endif
|
|
|
1678
|
|
|
1679 #ifdef VMS
|
|
|
1680 /* Appears to do nothing when in PASTHRU mode.
|
|
|
1681 SYS$QIOW (0, input_fd, IO$_SETMODE|IO$M_OUTBAND, 0, 0, 0,
|
|
|
1682 interrupt_signal, oob_chars, 0, 0, 0, 0);
|
|
|
1683 */
|
|
|
1684 queue_kbd_input (0);
|
|
|
1685 #endif /* VMS */
|
|
|
1686
|
|
|
1687 #if 0 /* We do our own buffering with lstreams. */
|
|
|
1688 #ifdef _IOFBF
|
|
|
1689 /* This symbol is defined on recent USG systems.
|
|
|
1690 Someone says without this call USG won't really buffer the file
|
|
|
1691 even with a call to setbuf. */
|
|
|
1692 setvbuf (CONSOLE_TTY_DATA (con)->outfd, (char *) _sobuf, _IOFBF, sizeof _sobuf);
|
|
|
1693 #else
|
|
|
1694 setbuf (CONSOLE_TTY_DATA (con)->outfd, (char *) _sobuf);
|
|
|
1695 #endif
|
|
|
1696 #endif
|
|
|
1697 set_tty_modes (con);
|
|
|
1698 }
|
|
|
1699
|
|
|
1700 #endif /* HAVE_TTY */
|
|
|
1701
|
|
|
1702 void
|
|
|
1703 init_one_device (struct device *d)
|
|
|
1704 {
|
|
|
1705 #ifdef HAVE_TTY
|
|
|
1706 if (DEVICE_TTY_P (d))
|
|
|
1707 tty_init_sys_modes_on_device (d);
|
|
|
1708 #endif
|
|
|
1709 #ifdef SIGIO
|
|
|
1710 if (!DEVICE_STREAM_P (d))
|
|
|
1711 {
|
|
|
1712 init_sigio_on_device (d);
|
|
|
1713 request_sigio_on_device (d);
|
|
|
1714 }
|
|
|
1715 #endif
|
|
|
1716 }
|
|
|
1717
|
|
|
1718 void
|
|
|
1719 init_one_console (struct console *con)
|
|
|
1720 {
|
|
|
1721 Lisp_Object devcons;
|
|
|
1722
|
|
|
1723 CONSOLE_DEVICE_LOOP (devcons, con)
|
|
|
1724 {
|
|
|
1725 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
1726
|
|
|
1727 init_one_device (d);
|
|
|
1728 }
|
|
|
1729 }
|
|
|
1730
|
|
|
1731 void
|
|
|
1732 reinit_initial_console (void)
|
|
|
1733 {
|
|
|
1734 munge_process_groups ();
|
|
|
1735 if (CONSOLEP (Vcontrolling_terminal) &&
|
|
|
1736 CONSOLE_LIVE_P (XCONSOLE (Vcontrolling_terminal)))
|
|
|
1737 init_one_console (XCONSOLE (Vcontrolling_terminal));
|
|
|
1738 }
|
|
|
1739
|
|
|
1740
|
|
|
1741 /* ------------------------------------------------------ */
|
|
|
1742 /* Other TTY functions */
|
|
|
1743 /* ------------------------------------------------------ */
|
|
|
1744
|
|
|
1745 #ifdef HAVE_TTY
|
|
|
1746
|
|
|
1747 #if 0 /* not currently used */
|
|
|
1748
|
|
|
1749 /* Return nonzero if safe to use tabs in output.
|
|
|
1750 At the time this is called, init_sys_modes has not been done yet. */
|
|
|
1751
|
|
|
1752 int
|
|
|
1753 tabs_safe_p (struct device *d)
|
|
|
1754 {
|
|
|
1755 #ifdef HAVE_TTY
|
|
|
1756 if (DEVICE_TTY_P (d))
|
|
|
1757 {
|
|
|
1758 struct emacs_tty tty;
|
|
|
1759
|
|
|
1760 EMACS_GET_TTY (DEVICE_INFD (d), &tty);
|
|
|
1761 return EMACS_TTY_TABS_OK (&tty);
|
|
|
1762 }
|
|
|
1763 #endif
|
|
|
1764 return 1;
|
|
|
1765 }
|
|
|
1766
|
|
|
1767 #endif /* 0 */
|
|
|
1768
|
|
|
1769 /* Get terminal size from system.
|
|
|
1770 Store number of lines into *heightp and width into *widthp.
|
|
|
1771 If zero or a negative number is stored, the value is not valid. */
|
|
|
1772
|
|
|
1773 void
|
|
|
1774 get_tty_device_size (struct device *d, int *widthp, int *heightp)
|
|
|
1775 {
|
|
|
1776 int input_fd = DEVICE_INFD (d);
|
|
|
1777
|
|
|
1778 assert (DEVICE_TTY_P (d));
|
|
|
1779
|
|
|
1780 #ifdef TIOCGWINSZ
|
|
|
1781 {
|
|
|
1782 /* BSD-style. */
|
|
|
1783 struct winsize size;
|
|
|
1784
|
|
|
1785 if (ioctl (input_fd, TIOCGWINSZ, &size) == -1)
|
|
|
1786 *widthp = *heightp = 0;
|
|
|
1787 else
|
|
|
1788 {
|
|
|
1789 *widthp = size.ws_col;
|
|
|
1790 *heightp = size.ws_row;
|
|
|
1791 }
|
|
|
1792 }
|
|
|
1793 #else
|
|
|
1794 #ifdef TIOCGSIZE
|
|
|
1795 {
|
|
|
1796 /* SunOS - style. */
|
|
|
1797 struct ttysize size;
|
|
|
1798
|
|
|
1799 if (ioctl (input_fd, TIOCGSIZE, &size) == -1)
|
|
|
1800 *widthp = *heightp = 0;
|
|
|
1801 else
|
|
|
1802 {
|
|
|
1803 *widthp = size.ts_cols;
|
|
|
1804 *heightp = size.ts_lines;
|
|
|
1805 }
|
|
|
1806 }
|
|
|
1807 #else
|
|
|
1808 #ifdef VMS
|
|
|
1809 {
|
|
|
1810 struct vms_sensemode tty;
|
|
|
1811
|
|
|
1812 SYS$QIOW (0, input_fd, IO$_SENSEMODE, &tty, 0, 0,
|
|
|
1813 &tty.class, 12, 0, 0, 0, 0);
|
|
|
1814 *widthp = tty.scr_wid;
|
|
|
1815 *heightp = tty.scr_len;
|
|
|
1816 }
|
|
|
1817 #else
|
|
|
1818 #ifdef MSDOS
|
|
|
1819
|
|
|
1820 *widthp = FrameCols ();
|
|
|
1821 *heightp = FrameRows ();
|
|
|
1822
|
|
|
1823 #else /* system doesn't know size */
|
|
|
1824
|
|
|
1825 *widthp = 0;
|
|
|
1826 *heightp = 0;
|
|
|
1827
|
|
|
1828 #endif /* not MSDOS */
|
|
|
1829 #endif /* not VMS */
|
|
|
1830 #endif /* not SunOS-style */
|
|
|
1831 #endif /* not BSD-style */
|
|
|
1832 }
|
|
|
1833
|
|
|
1834 #endif /* HAVE_TTY */
|
|
|
1835
|
|
|
1836
|
|
|
1837 /* ------------------------------------------------------ */
|
|
|
1838 /* Is device 8 bit ? */
|
|
|
1839 /* ------------------------------------------------------ */
|
|
|
1840
|
|
|
1841 #ifdef HAVE_TTY
|
|
|
1842
|
|
|
1843 int
|
|
|
1844 eight_bit_tty (struct device *d)
|
|
|
1845 {
|
|
|
1846 struct emacs_tty s;
|
|
|
1847 int input_fd;
|
|
|
1848 int eight_bit = 0;
|
|
|
1849
|
|
|
1850 assert (DEVICE_TTY_P (d));
|
|
|
1851 input_fd = DEVICE_INFD (d);
|
|
|
1852
|
|
|
1853 EMACS_GET_TTY (input_fd, &s);
|
|
|
1854
|
|
|
1855 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
|
|
|
1856 eight_bit = (s.main.c_cflag & CSIZE) == CS8;
|
|
|
1857 #else
|
|
|
1858 eight_bit = 0; /* I don't know how to do it */
|
|
|
1859 #endif
|
|
|
1860 return eight_bit;
|
|
|
1861 }
|
|
|
1862
|
|
|
1863 #endif /* HAVE_TTY */
|
|
|
1864
|
|
|
1865
|
|
|
1866 /* ------------------------------------------------------ */
|
|
|
1867 /* Resetting a device */
|
|
|
1868 /* ------------------------------------------------------ */
|
|
|
1869
|
|
|
1870 #ifdef HAVE_TTY
|
|
|
1871
|
|
|
1872 /* Prepare the terminal for exiting Emacs; move the cursor to the
|
|
|
1873 bottom of the frame, turn off interrupt-driven I/O, etc. */
|
|
|
1874 static void
|
|
|
1875 tty_reset_sys_modes_on_device (struct device *d)
|
|
|
1876 {
|
|
|
1877 int input_fd, output_fd;
|
|
|
1878 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
|
|
|
1879
|
|
|
1880 input_fd = CONSOLE_TTY_DATA (con)->infd;
|
|
|
1881 output_fd = CONSOLE_TTY_DATA (con)->outfd;
|
|
|
1882
|
|
|
1883 #if defined (IBMR2AIX) && defined (AIXHFT)
|
|
|
1884 {
|
|
|
1885 /* HFT consoles normally use ^J as a LF/CR. We forced it to
|
|
|
1886 do the LF only. Now, we need to reset it. */
|
|
|
1887 struct termio tty;
|
|
|
1888
|
|
|
1889 if (ioctl (output_fd, HFTGETID, &tty) != -1)
|
|
|
1890 write (output_fd, "\033[20h", 5);
|
|
|
1891 }
|
|
|
1892 #endif
|
|
|
1893
|
|
|
1894 tty_redisplay_shutdown (con);
|
|
|
1895 /* reset_tty_modes() flushes the connection at its end. */
|
|
|
1896 reset_tty_modes (con);
|
|
|
1897
|
|
|
1898 #if defined (BSD)
|
|
|
1899 /* Avoid possible loss of output when changing terminal modes. */
|
|
|
1900 fsync (output_fd);
|
|
|
1901 #endif
|
|
|
1902
|
|
|
1903 while (EMACS_SET_TTY (input_fd, &CONSOLE_TTY_DATA (con)->old_tty, 0)
|
|
|
1904 < 0 && errno == EINTR)
|
|
|
1905 ;
|
|
|
1906
|
|
|
1907 #ifdef MSDOS
|
|
|
1908 dos_ttcooked ();
|
|
|
1909 #endif
|
|
|
1910
|
|
|
1911 #ifdef SET_LINE_DISCIPLINE
|
|
|
1912 /* Ultrix's termios *ignores* any line discipline except TERMIODISC.
|
|
|
1913 A different old line discipline is therefore not restored, yet.
|
|
|
1914 Restore the old line discipline by hand. */
|
|
|
1915 ioctl (input_fd, TIOCSETD, &old_tty.main.c_line);
|
|
|
1916 #endif
|
|
|
1917
|
|
|
1918 #ifdef AIXHFT
|
|
|
1919 hft_reset (con);
|
|
|
1920 #endif
|
|
|
1921
|
|
|
1922 #ifdef VMS
|
|
|
1923 stop_vms_input (con);
|
|
|
1924 #endif
|
|
|
1925 }
|
|
|
1926
|
|
|
1927 #endif /* HAVE_TTY */
|
|
|
1928
|
|
|
1929 void
|
|
|
1930 reset_one_device (struct device *d)
|
|
|
1931 {
|
|
|
1932 #ifdef HAVE_TTY
|
|
|
1933 if (DEVICE_TTY_P (d))
|
|
|
1934 tty_reset_sys_modes_on_device (d);
|
|
|
1935 else
|
|
|
1936 #endif
|
|
|
1937 if (DEVICE_STREAM_P (d))
|
|
|
1938 fflush (CONSOLE_STREAM_DATA (XCONSOLE (DEVICE_CONSOLE (d)))->outfd);
|
|
|
1939 #ifdef SIGIO
|
|
|
1940 if (!DEVICE_STREAM_P (d))
|
|
|
1941 {
|
|
|
1942 unrequest_sigio_on_device (d);
|
|
|
1943 reset_sigio_on_device (d);
|
|
|
1944 }
|
|
|
1945 #endif
|
|
|
1946 }
|
|
|
1947
|
|
|
1948 void
|
|
|
1949 reset_one_console (struct console *con)
|
|
|
1950 {
|
|
|
1951 /* Note: this can be called during GC. */
|
|
|
1952 Lisp_Object devcons;
|
|
|
1953
|
|
|
1954 CONSOLE_DEVICE_LOOP (devcons, con)
|
|
|
1955 {
|
|
|
1956 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
1957
|
|
|
1958 reset_one_device (d);
|
|
|
1959 }
|
|
|
1960 }
|
|
|
1961
|
|
|
1962 void
|
|
|
1963 reset_all_consoles (void)
|
|
|
1964 {
|
|
|
1965 /* Note: this can be called during GC. */
|
|
|
1966 Lisp_Object concons;
|
|
|
1967
|
|
|
1968 CONSOLE_LOOP (concons)
|
|
|
1969 {
|
|
|
1970 struct console *con = XCONSOLE (XCAR (concons));
|
|
|
1971
|
|
|
1972 reset_one_console (con);
|
|
|
1973 }
|
|
|
1974
|
|
|
1975 unmunge_process_groups ();
|
|
|
1976 }
|
|
|
1977
|
|
|
1978 void
|
|
|
1979 reset_initial_console (void)
|
|
|
1980 {
|
|
|
1981 if (CONSOLEP (Vcontrolling_terminal) &&
|
|
|
1982 CONSOLE_LIVE_P (XCONSOLE (Vcontrolling_terminal)))
|
|
|
1983 reset_one_console (XCONSOLE (Vcontrolling_terminal));
|
|
|
1984 unmunge_process_groups ();
|
|
|
1985 }
|
|
|
1986
|
|
|
1987
|
|
|
1988 /* ------------------------------------------------------ */
|
|
|
1989 /* extra TTY stuff under AIX */
|
|
|
1990 /* ------------------------------------------------------ */
|
|
|
1991
|
|
|
1992 #ifdef AIXHFT
|
|
|
1993
|
|
|
1994 /* Called from init_sys_modes. */
|
|
|
1995 static void
|
|
|
1996 hft_init (struct console *con)
|
|
|
1997 {
|
|
|
1998 int junk;
|
|
|
1999 int input_fd;
|
|
|
2000
|
|
|
2001 assert (CONSOLE_TTY_P (con));
|
|
|
2002 input_fd = CONSOLE_TTY_DATA (con)->infd;
|
|
|
2003
|
|
|
2004 /* If we're not on an HFT we shouldn't do any of this. We determine
|
|
|
2005 if we are on an HFT by trying to get an HFT error code. If this
|
|
|
2006 call fails, we're not on an HFT. */
|
|
|
2007 #ifdef IBMR2AIX
|
|
|
2008 if (ioctl (input_fd, HFQERROR, &junk) < 0)
|
|
|
2009 return;
|
|
|
2010 #else /* not IBMR2AIX */
|
|
|
2011 if (ioctl (input_fd, HFQEIO, 0) < 0)
|
|
|
2012 return;
|
|
|
2013 #endif /* not IBMR2AIX */
|
|
|
2014
|
|
|
2015 /* On AIX the default hft keyboard mapping uses backspace rather than delete
|
|
|
2016 as the rubout key's ASCII code. Here this is changed. The bug is that
|
|
|
2017 there's no way to determine the old mapping, so in reset_one_console
|
|
|
2018 we need to assume that the normal map had been present. Of course, this
|
|
|
2019 code also doesn't help if on a terminal emulator which doesn't understand
|
|
|
2020 HFT VTD's. */
|
|
|
2021 {
|
|
|
2022 struct hfbuf buf;
|
|
|
2023 struct hfkeymap keymap;
|
|
|
2024
|
|
|
2025 buf.hf_bufp = (char *)&keymap;
|
|
|
2026 buf.hf_buflen = sizeof (keymap);
|
|
|
2027 keymap.hf_nkeys = 2;
|
|
|
2028 keymap.hfkey[0].hf_kpos = 15;
|
|
|
2029 keymap.hfkey[0].hf_kstate = HFMAPCHAR | HFSHFNONE;
|
|
|
2030 #ifdef IBMR2AIX
|
|
|
2031 keymap.hfkey[0].hf_keyidh = '<';
|
|
|
2032 #else /* not IBMR2AIX */
|
|
|
2033 keymap.hfkey[0].hf_page = '<';
|
|
|
2034 #endif /* not IBMR2AIX */
|
|
|
2035 keymap.hfkey[0].hf_char = 127;
|
|
|
2036 keymap.hfkey[1].hf_kpos = 15;
|
|
|
2037 keymap.hfkey[1].hf_kstate = HFMAPCHAR | HFSHFSHFT;
|
|
|
2038 #ifdef IBMR2AIX
|
|
|
2039 keymap.hfkey[1].hf_keyidh = '<';
|
|
|
2040 #else /* not IBMR2AIX */
|
|
|
2041 keymap.hfkey[1].hf_page = '<';
|
|
|
2042 #endif /* not IBMR2AIX */
|
|
|
2043 keymap.hfkey[1].hf_char = 127;
|
|
|
2044 hftctl (input_fd, HFSKBD, &buf);
|
|
|
2045 }
|
|
|
2046 /* #### Should probably set a console TTY flag here. */
|
|
|
2047 #if 0
|
|
|
2048 /* The HFT system on AIX doesn't optimize for scrolling, so it's really ugly
|
|
|
2049 at times. */
|
|
|
2050 line_ins_del_ok = char_ins_del_ok = 0;
|
|
|
2051 #endif /* 0 */
|
|
|
2052 }
|
|
|
2053
|
|
|
2054 /* Reset the rubout key to backspace. */
|
|
|
2055
|
|
|
2056 static void
|
|
|
2057 hft_reset (struct console *con)
|
|
|
2058 {
|
|
|
2059 struct hfbuf buf;
|
|
|
2060 struct hfkeymap keymap;
|
|
|
2061 int junk;
|
|
|
2062 int input_fd;
|
|
|
2063
|
|
|
2064 assert (CONSOLE_TTY_P (con));
|
|
|
2065 input_fd = CONSOLE_TTY_DATA (con)->infd;
|
|
|
2066
|
|
|
2067 #ifdef IBMR2AIX
|
|
|
2068 if (ioctl (input_fd, HFQERROR, &junk) < 0)
|
|
|
2069 return;
|
|
|
2070 #else /* not IBMR2AIX */
|
|
|
2071 if (ioctl (input_fd, HFQEIO, 0) < 0)
|
|
|
2072 return;
|
|
|
2073 #endif /* not IBMR2AIX */
|
|
|
2074
|
|
|
2075 buf.hf_bufp = (char *)&keymap;
|
|
|
2076 buf.hf_buflen = sizeof (keymap);
|
|
|
2077 keymap.hf_nkeys = 2;
|
|
|
2078 keymap.hfkey[0].hf_kpos = 15;
|
|
|
2079 keymap.hfkey[0].hf_kstate = HFMAPCHAR | HFSHFNONE;
|
|
|
2080 #ifdef IBMR2AIX
|
|
|
2081 keymap.hfkey[0].hf_keyidh = '<';
|
|
|
2082 #else /* not IBMR2AIX */
|
|
|
2083 keymap.hfkey[0].hf_page = '<';
|
|
|
2084 #endif /* not IBMR2AIX */
|
|
|
2085 keymap.hfkey[0].hf_char = 8;
|
|
|
2086 keymap.hfkey[1].hf_kpos = 15;
|
|
|
2087 keymap.hfkey[1].hf_kstate = HFMAPCHAR | HFSHFSHFT;
|
|
|
2088 #ifdef IBMR2AIX
|
|
|
2089 keymap.hfkey[1].hf_keyidh = '<';
|
|
|
2090 #else /* not IBMR2AIX */
|
|
|
2091 keymap.hfkey[1].hf_page = '<';
|
|
|
2092 #endif /* not IBMR2AIX */
|
|
|
2093 keymap.hfkey[1].hf_char = 8;
|
|
|
2094 hftctl (input_fd, HFSKBD, &buf);
|
|
|
2095 }
|
|
|
2096
|
|
|
2097 #endif /* AIXHFT */
|
|
|
2098
|
|
|
2099
|
|
|
2100 /* ------------------------------------------------------ */
|
|
|
2101 /* TTY stuff under VMS */
|
|
|
2102 /* ------------------------------------------------------ */
|
|
|
2103
|
|
|
2104 /***** #### this is all broken ****/
|
|
|
2105
|
|
|
2106 #ifdef VMS
|
|
|
2107
|
|
|
2108 /* Assigning an input channel is done at the start of Emacs execution.
|
|
|
2109 This is called each time Emacs is resumed, also, but does nothing
|
|
|
2110 because input_chain is no longer zero. */
|
|
|
2111
|
|
|
2112 void
|
|
|
2113 init_vms_input (void)
|
|
|
2114 {
|
|
|
2115 /* #### broken. */
|
|
|
2116 int status;
|
|
|
2117
|
|
|
2118 if (input_fd == 0)
|
|
|
2119 {
|
|
|
2120 status = SYS$ASSIGN (&vms_input_dsc, &input_fd, 0, 0);
|
|
|
2121 if (! (status & 1))
|
|
|
2122 LIB$STOP (status);
|
|
|
2123 }
|
|
|
2124 }
|
|
|
2125
|
|
|
2126 /* Deassigning the input channel is done before exiting. */
|
|
|
2127
|
|
|
2128 static void
|
|
|
2129 stop_vms_input (struct console *con)
|
|
|
2130 {
|
|
|
2131 int input_fd = CONSOLE_TTY_DATA (con)->infd;
|
|
|
2132 return SYS$DASSGN (input_fd);
|
|
|
2133 }
|
|
|
2134
|
|
|
2135 static short vms_input_buffer;
|
|
|
2136
|
|
|
2137 /* Request reading one character into the keyboard buffer.
|
|
|
2138 This is done as soon as the buffer becomes empty. */
|
|
|
2139
|
|
|
2140 static void
|
|
|
2141 queue_vms_kbd_input (struct console *con)
|
|
|
2142 {
|
|
|
2143 int input_fd = CONSOLE_TTY_DATA (con)->infd;
|
|
|
2144 int status;
|
|
|
2145 vms_waiting_for_ast = 0;
|
|
|
2146 vms_stop_input = 0;
|
|
|
2147 status = SYS$QIO (0, input_fd, IO$_READVBLK,
|
|
|
2148 &vms_input_iosb, vms_kbd_input_ast, 1,
|
|
|
2149 &vms_input_buffer, 1, 0, vms_terminator_mask, 0, 0);
|
|
|
2150 }
|
|
|
2151
|
|
|
2152 static int vms_input_count;
|
|
|
2153
|
|
|
2154 /* Ast routine that is called when keyboard input comes in
|
|
|
2155 in accord with the SYS$QIO above. */
|
|
|
2156
|
|
|
2157 static void
|
|
|
2158 vms_kbd_input_ast (struct console *con)
|
|
|
2159 {
|
|
|
2160 int c = -1;
|
|
|
2161 int old_errno = errno;
|
|
|
2162 extern EMACS_TIME *input_available_clear_time;
|
|
|
2163
|
|
|
2164 if (vms_waiting_for_ast)
|
|
|
2165 SYS$SETEF (vms_input_ef);
|
|
|
2166 vms_waiting_for_ast = 0;
|
|
|
2167 vms_input_count++;
|
|
|
2168 #ifdef ASTDEBUG
|
|
|
2169 if (vms_input_count == 25)
|
|
|
2170 exit (1);
|
|
|
2171 printf ("Ast # %d,", vms_input_count);
|
|
|
2172 printf (" iosb = %x, %x, %x, %x",
|
|
|
2173 vms_input_iosb.offset, vms_input_iosb.status,
|
|
|
2174 vms_input_iosb.termlen, vms_input_iosb.term);
|
|
|
2175 #endif
|
|
|
2176 if (vms_input_iosb.offset)
|
|
|
2177 {
|
|
|
2178 c = vms_input_buffer;
|
|
|
2179 #ifdef ASTDEBUG
|
|
|
2180 printf (", char = 0%o", c);
|
|
|
2181 #endif
|
|
|
2182 }
|
|
|
2183 #ifdef ASTDEBUG
|
|
|
2184 printf ("\n");
|
|
|
2185 fflush (stdout);
|
|
|
2186 emacs_sleep (1);
|
|
|
2187 #endif
|
|
|
2188 if (! vms_stop_input)
|
|
|
2189 queue_vms_kbd_input (con);
|
|
|
2190 if (c >= 0)
|
|
|
2191 kbd_buffer_store_char (c);
|
|
|
2192
|
|
|
2193 if (input_available_clear_time)
|
|
|
2194 EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0);
|
|
|
2195 errno = old_errno;
|
|
|
2196 }
|
|
|
2197
|
|
|
2198 #if 0 /* Unused */
|
|
|
2199 /* Wait until there is something in kbd_buffer. */
|
|
|
2200
|
|
|
2201 void
|
|
|
2202 vms_wait_for_kbd_input (void)
|
|
|
2203 {
|
|
|
2204 /* This function can GC */
|
|
|
2205 extern int have_process_input, process_exited;
|
|
|
2206
|
|
|
2207 /* If already something, avoid doing system calls. */
|
|
|
2208 if (detect_input_pending (0))
|
|
|
2209 {
|
|
|
2210 return;
|
|
|
2211 }
|
|
|
2212 /* Clear a flag, and tell ast routine above to set it. */
|
|
|
2213 SYS$CLREF (vms_input_ef);
|
|
|
2214 vms_waiting_for_ast = 1;
|
|
|
2215 /* Check for timing error: ast happened while we were doing that. */
|
|
|
2216 if (!detect_input_pending (0))
|
|
|
2217 {
|
|
|
2218 /* No timing error: wait for flag to be set. */
|
|
|
2219 set_waiting_for_input (0);
|
|
|
2220 SYS$WFLOR (vms_input_ef, vms_input_eflist);
|
|
|
2221 clear_waiting_for_input (0);
|
|
|
2222 if (!detect_input_pending (0))
|
|
|
2223 /* Check for subprocess input availability */
|
|
|
2224 {
|
|
|
2225 int dsp = have_process_input || process_exited;
|
|
|
2226
|
|
|
2227 SYS$CLREF (vms_process_ef);
|
|
|
2228 if (have_process_input)
|
|
|
2229 process_command_input ();
|
|
|
2230 if (process_exited)
|
|
|
2231 process_exit ();
|
|
|
2232 if (dsp)
|
|
|
2233 {
|
|
|
2234 MARK_MODELINE_CHANGED;
|
|
|
2235 redisplay ();
|
|
|
2236 }
|
|
|
2237 }
|
|
|
2238 }
|
|
|
2239 vms_waiting_for_ast = 0;
|
|
|
2240 }
|
|
|
2241 #endif
|
|
|
2242
|
|
|
2243 /* Get rid of any pending QIO, when we are about to suspend
|
|
|
2244 or when we want to throw away pending input.
|
|
|
2245 We wait for a positive sign that the AST routine has run
|
|
|
2246 and therefore there is no I/O request queued when we return.
|
|
|
2247 SYS$SETAST is used to avoid a timing error. */
|
|
|
2248
|
|
|
2249 static void
|
|
|
2250 vms_end_kbd_input (struct console *con)
|
|
|
2251 {
|
|
|
2252 int input_fd;
|
|
|
2253
|
|
|
2254 assert (CONSOLE_TTY_P (con));
|
|
|
2255 input_fd = CONSOLE_TTY_DATA (con)->infd;
|
|
|
2256 #ifdef ASTDEBUG
|
|
|
2257 printf ("At end_kbd_input.\n");
|
|
|
2258 fflush (stdout);
|
|
|
2259 emacs_sleep (1);
|
|
|
2260 #endif
|
|
|
2261 if (LIB$AST_IN_PROG ()) /* Don't wait if suspending from kbd_buffer_store_char! */
|
|
|
2262 {
|
|
|
2263 SYS$CANCEL (input_fd);
|
|
|
2264 return;
|
|
|
2265 }
|
|
|
2266
|
|
|
2267 SYS$SETAST (0);
|
|
|
2268 /* Clear a flag, and tell ast routine above to set it. */
|
|
|
2269 SYS$CLREF (vms_input_ef);
|
|
|
2270 vms_waiting_for_ast = 1;
|
|
|
2271 vms_stop_input = 1;
|
|
|
2272 SYS$CANCEL (input_fd);
|
|
|
2273 SYS$SETAST (1);
|
|
|
2274 SYS$WAITFR (vms_input_ef);
|
|
|
2275 vms_waiting_for_ast = 0;
|
|
|
2276 }
|
|
|
2277
|
|
|
2278 #if 0 /* Unused */
|
|
|
2279 /* Wait for either input available or time interval expiry. */
|
|
|
2280
|
|
|
2281 void
|
|
|
2282 vms_input_wait_timeout (int timeval) /* Time to wait, in seconds */
|
|
|
2283 {
|
|
|
2284 int time [2];
|
|
|
2285 static int zero = 0;
|
|
|
2286 static int large = -10000000;
|
|
|
2287
|
|
|
2288 LIB$EMUL (&timeval, &large, &zero, time); /* Convert to VMS format */
|
|
|
2289
|
|
|
2290 /* If already something, avoid doing system calls. */
|
|
|
2291 if (detect_input_pending (0))
|
|
|
2292 {
|
|
|
2293 return;
|
|
|
2294 }
|
|
|
2295 /* Clear a flag, and tell ast routine above to set it. */
|
|
|
2296 SYS$CLREF (vms_input_ef);
|
|
|
2297 vms_waiting_for_ast = 1;
|
|
|
2298 /* Check for timing error: ast happened while we were doing that. */
|
|
|
2299 if (!detect_input_pending (0))
|
|
|
2300 {
|
|
|
2301 /* No timing error: wait for flag to be set. */
|
|
|
2302 SYS$CANTIM (1, 0);
|
|
|
2303 if (SYS$SETIMR (vms_timer_ef, time, 0, 1) & 1) /* Set timer */
|
|
|
2304 SYS$WFLOR (vms_timer_ef, vms_timer_eflist); /* Wait for timer expiry or input */
|
|
|
2305 }
|
|
|
2306 vms_waiting_for_ast = 0;
|
|
|
2307 }
|
|
|
2308 #endif /* 0 */
|
|
|
2309
|
|
|
2310 #endif /* VMS */
|
|
|
2311
|
|
|
2312
|
|
|
2313 /************************************************************************/
|
|
|
2314 /* limits of text/data segments */
|
|
|
2315 /************************************************************************/
|
|
|
2316
|
|
|
2317 /* Note that VMS compiler won't accept defined (CANNOT_DUMP). */
|
|
|
2318 #ifndef CANNOT_DUMP
|
|
|
2319 #define NEED_STARTS
|
|
|
2320 #endif
|
|
|
2321
|
|
|
2322 #ifndef SYSTEM_MALLOC
|
|
|
2323 #ifndef NEED_STARTS
|
|
|
2324 #define NEED_STARTS
|
|
|
2325 #endif
|
|
|
2326 #endif
|
|
|
2327
|
|
|
2328 #ifdef NEED_STARTS
|
|
|
2329 /* Some systems that cannot dump also cannot implement these. */
|
|
|
2330
|
|
|
2331 /*
|
|
|
2332 * Return the address of the start of the text segment prior to
|
|
|
2333 * doing an unexec. After unexec the return value is undefined.
|
|
|
2334 * See crt0.c for further explanation and _start.
|
|
|
2335 *
|
|
|
2336 */
|
|
|
2337
|
|
|
2338 #ifndef HAVE_TEXT_START
|
|
|
2339 char *
|
|
|
2340 start_of_text (void)
|
|
|
2341 {
|
|
|
2342 #ifdef TEXT_START
|
|
|
2343 return ((char *) TEXT_START);
|
|
|
2344 #else
|
|
|
2345 #ifdef GOULD
|
|
|
2346 extern csrt ();
|
|
|
2347 return ((char *) csrt);
|
|
|
2348 #else /* not GOULD */
|
|
|
2349 extern int _start ();
|
|
|
2350 return ((char *) _start);
|
|
|
2351 #endif /* GOULD */
|
|
|
2352 #endif /* TEXT_START */
|
|
|
2353 }
|
|
|
2354 #endif /* not HAVE_TEXT_START */
|
|
|
2355
|
|
|
2356 /*
|
|
|
2357 * Return the address of the start of the data segment prior to
|
|
|
2358 * doing an unexec. After unexec the return value is undefined.
|
|
|
2359 * See crt0.c for further information and definition of data_start.
|
|
|
2360 *
|
|
|
2361 * Apparently, on BSD systems this is etext at startup. On
|
|
|
2362 * USG systems (swapping) this is highly mmu dependent and
|
|
|
2363 * is also dependent on whether or not the program is running
|
|
|
2364 * with shared text. Generally there is a (possibly large)
|
|
|
2365 * gap between end of text and start of data with shared text.
|
|
|
2366 *
|
|
|
2367 * On Uniplus+ systems with shared text, data starts at a
|
|
|
2368 * fixed address. Each port (from a given oem) is generally
|
|
|
2369 * different, and the specific value of the start of data can
|
|
|
2370 * be obtained via the UniPlus+ specific "uvar" system call,
|
|
|
2371 * however the method outlined in crt0.c seems to be more portable.
|
|
|
2372 *
|
|
|
2373 * Probably what will have to happen when a USG unexec is available,
|
|
|
2374 * at least on UniPlus, is temacs will have to be made unshared so
|
|
|
2375 * that text and data are contiguous. Then once loadup is complete,
|
|
|
2376 * unexec will produce a shared executable where the data can be
|
|
|
2377 * at the normal shared text boundry and the startofdata variable
|
|
|
2378 * will be patched by unexec to the correct value.
|
|
|
2379 *
|
|
|
2380 */
|
|
|
2381
|
|
|
2382 void *
|
|
|
2383 start_of_data (void)
|
|
|
2384 {
|
|
|
2385 #ifdef DATA_START
|
|
|
2386 return ((char *) DATA_START);
|
|
|
2387 #else
|
|
|
2388 #ifdef ORDINARY_LINK
|
|
|
2389 /*
|
|
|
2390 * This is a hack. Since we're not linking crt0.c or pre_crt0.c,
|
|
|
2391 * data_start isn't defined. We take the address of environ, which
|
|
|
2392 * is known to live at or near the start of the system crt0.c, and
|
|
|
2393 * we don't sweat the handful of bytes that might lose.
|
|
|
2394 */
|
|
|
2395 extern char **environ;
|
|
|
2396
|
|
|
2397 return((char *) &environ);
|
|
|
2398 #else
|
|
|
2399 extern int data_start;
|
|
|
2400 return ((char *) &data_start);
|
|
|
2401 #endif /* ORDINARY_LINK */
|
|
|
2402 #endif /* DATA_START */
|
|
|
2403 }
|
|
|
2404 #endif /* NEED_STARTS (not CANNOT_DUMP or not SYSTEM_MALLOC) */
|
|
|
2405
|
|
|
2406 #ifndef CANNOT_DUMP
|
|
|
2407 /* Some systems that cannot dump also cannot implement these. */
|
|
|
2408
|
|
|
2409 /*
|
|
|
2410 * Return the address of the end of the text segment prior to
|
|
|
2411 * doing an unexec. After unexec the return value is undefined.
|
|
|
2412 */
|
|
|
2413
|
|
|
2414 char *
|
|
|
2415 end_of_text (void)
|
|
|
2416 {
|
|
|
2417 #ifdef TEXT_END
|
|
|
2418 return ((char *) TEXT_END);
|
|
|
2419 #else
|
|
|
2420 extern int etext;
|
|
|
2421 return ((char *) &etext);
|
|
|
2422 #endif
|
|
|
2423 }
|
|
|
2424
|
|
|
2425 /*
|
|
|
2426 * Return the address of the end of the data segment prior to
|
|
|
2427 * doing an unexec. After unexec the return value is undefined.
|
|
|
2428 */
|
|
|
2429
|
|
|
2430 char *
|
|
|
2431 end_of_data (void)
|
|
|
2432 {
|
|
|
2433 #ifdef DATA_END
|
|
|
2434 return ((char *) DATA_END);
|
|
|
2435 #else
|
|
|
2436 extern int edata;
|
|
|
2437 return ((char *) &edata);
|
|
|
2438 #endif
|
|
|
2439 }
|
|
|
2440
|
|
|
2441 #endif /* not CANNOT_DUMP */
|
|
|
2442
|
|
|
2443
|
|
|
2444 /************************************************************************/
|
|
|
2445 /* get the system name */
|
|
|
2446 /************************************************************************/
|
|
|
2447
|
|
|
2448 /* init_system_name sets up the string for the Lisp function
|
|
|
2449 system-name to return. */
|
|
|
2450
|
|
|
2451 extern Lisp_Object Vsystem_name;
|
|
|
2452
|
|
|
2453 #if defined (HAVE_SOCKETS) && !defined (VMS)
|
|
|
2454 # include <sys/socket.h>
|
|
|
2455 # include <netdb.h>
|
|
|
2456 #endif /* HAVE_SOCKETS and not VMS */
|
|
|
2457
|
|
|
2458 void
|
|
|
2459 init_system_name (void)
|
|
|
2460 {
|
|
|
2461 #if defined (VMS)
|
|
|
2462 char *sp, *end;
|
|
|
2463 if ((sp = egetenv ("SYS$NODE")) == 0)
|
|
|
2464 Vsystem_name = build_string ("vax-vms");
|
|
|
2465 else if ((end = strchr (sp, ':')) == 0)
|
|
|
2466 Vsystem_name = build_string (sp);
|
|
|
2467 else
|
|
|
2468 Vsystem_name = make_string ((Bufbyte *) sp, end - sp);
|
|
|
2469 #elif !defined (HAVE_GETHOSTNAME)
|
|
|
2470 struct utsname uts;
|
|
|
2471 uname (&uts);
|
|
|
2472 Vsystem_name = build_string (uts.nodename);
|
|
|
2473 #else /* HAVE_GETHOSTNAME */
|
|
|
2474 unsigned int hostname_size = 256;
|
|
|
2475 char *hostname = (char *) alloca (hostname_size);
|
|
|
2476
|
|
|
2477 /* Try to get the host name; if the buffer is too short, try
|
|
|
2478 again. Apparently, the only indication gethostname gives of
|
|
|
2479 whether the buffer was large enough is the presence or absence
|
|
|
2480 of a '\0' in the string. Eech. */
|
|
|
2481 for (;;)
|
|
|
2482 {
|
|
|
2483 gethostname (hostname, hostname_size - 1);
|
|
|
2484 hostname[hostname_size - 1] = '\0';
|
|
|
2485
|
|
|
2486 /* Was the buffer large enough for the '\0'? */
|
|
|
2487 if (strlen (hostname) < (size_t) (hostname_size - 1))
|
|
|
2488 break;
|
|
|
2489
|
|
|
2490 hostname_size <<= 1;
|
|
|
2491 hostname = (char *) alloca (hostname_size);
|
|
|
2492 }
|
|
|
2493 # ifdef HAVE_SOCKETS
|
|
|
2494 /* Turn the hostname into the official, fully-qualified hostname.
|
|
|
2495 Don't do this if we're going to dump; this can confuse system
|
|
|
2496 libraries on some machines and make the dumped emacs core dump. */
|
|
|
2497 # ifndef CANNOT_DUMP
|
|
|
2498 if (initialized)
|
|
|
2499 # endif /* not CANNOT_DUMP */
|
|
|
2500 {
|
|
|
2501 struct hostent *hp;
|
|
|
2502 int count;
|
|
|
2503 # ifdef TRY_AGAIN
|
|
|
2504 for (count = 0; count < 10; count++)
|
|
|
2505 {
|
|
|
2506 h_errno = 0;
|
|
|
2507 # endif
|
|
|
2508 /* Some systems can't handle SIGALARM/SIGIO in gethostbyname(). */
|
|
|
2509 stop_interrupts ();
|
|
|
2510 hp = gethostbyname (hostname);
|
|
|
2511 start_interrupts ();
|
|
|
2512 # ifdef TRY_AGAIN
|
|
|
2513 if (! (hp == 0 && h_errno == TRY_AGAIN))
|
|
|
2514 break;
|
|
|
2515 Fsleep_for (make_int (1));
|
|
|
2516 }
|
|
|
2517 # endif
|
|
|
2518 if (hp)
|
|
|
2519 {
|
|
|
2520 CONST char *fqdn = (CONST char *) hp->h_name;
|
|
|
2521
|
|
|
2522 if (!strchr (fqdn, '.'))
|
|
|
2523 {
|
|
|
2524 /* We still don't have a fully qualified domain name.
|
|
|
2525 Try to find one in the list of alternate names */
|
|
|
2526 char **alias = hp->h_aliases;
|
|
|
2527 while (*alias && !strchr (*alias, '.'))
|
|
|
2528 alias++;
|
|
|
2529 if (*alias)
|
|
|
2530 fqdn = *alias;
|
|
|
2531 }
|
|
|
2532 hostname = (char *) alloca (strlen (fqdn) + 1);
|
|
|
2533 strcpy (hostname, fqdn);
|
|
|
2534 }
|
|
|
2535 }
|
|
|
2536 # endif /* HAVE_SOCKETS */
|
|
|
2537 Vsystem_name = build_string (hostname);
|
|
|
2538 #endif /* HAVE_GETHOSTNAME and not VMS */
|
|
|
2539 {
|
|
|
2540 Bufbyte *p;
|
|
|
2541 Bytecount i;
|
|
|
2542
|
|
|
2543 for (i = 0, p = string_data (XSTRING (Vsystem_name));
|
|
|
2544 i < string_length (XSTRING (Vsystem_name));
|
|
|
2545 i++, p++)
|
|
|
2546 {
|
|
|
2547 if (*p == ' ' || *p == '\t')
|
|
|
2548 *p = '-';
|
|
|
2549 }
|
|
|
2550 }
|
|
|
2551 }
|
|
|
2552
|
|
|
2553
|
|
|
2554 /************************************************************************/
|
|
|
2555 /* Emulation of select() */
|
|
|
2556 /************************************************************************/
|
|
|
2557
|
|
|
2558 #ifndef VMS
|
|
|
2559 #ifndef HAVE_SELECT
|
|
|
2560
|
|
|
2561 ERROR: XEmacs requires a working select().
|
|
|
2562
|
|
|
2563 #endif /* not HAVE_SELECT */
|
|
|
2564 #endif /* not VMS */
|
|
|
2565
|
|
|
2566
|
|
|
2567 /************************************************************************/
|
|
|
2568 /* Emulation of signal stuff */
|
|
|
2569 /************************************************************************/
|
|
|
2570
|
|
|
2571 /* BSD 4.1 crap deleted. 4.2 was released in 1983, for God's sake! I
|
|
|
2572 can't imagine that anyone is actually running that OS any more.
|
|
|
2573 You can't use X under it (I think) because there's no select().
|
|
|
2574 Anyway, the signal stuff has all been changed. If someone wants to
|
|
|
2575 get this stuff working again, look in the FSF Emacs sources. */
|
|
|
2576
|
|
|
2577 /* POSIX signals support - DJB */
|
|
|
2578
|
|
|
2579 #ifdef HAVE_SIGPROCMASK
|
|
|
2580
|
|
|
2581 /* #### Is there any reason this is static global rather than local? */
|
|
|
2582 static struct sigaction new_action, old_action;
|
|
|
2583
|
|
|
2584 signal_handler_t
|
|
|
2585 sys_do_signal (int signal_number, signal_handler_t action)
|
|
|
2586 {
|
|
|
2587 #if 0
|
|
|
2588
|
|
|
2589 /* XEmacs works better if system calls are *not* restarted.
|
|
|
2590 This allows C-g to interrupt reads and writes, on most systems.
|
|
|
2591
|
|
|
2592 #### Another possibility is to just longjmp() out of the signal
|
|
|
2593 handler. According to W.R. Stevens, this should be OK on all
|
|
|
2594 systems. However, I don't want to deal with the potential
|
|
|
2595 evil ramifications of this at this point. */
|
|
|
2596
|
|
|
2597 #ifdef DGUX
|
|
|
2598 /* This gets us restartable system calls for efficiency.
|
|
|
2599 The "else" code will work as well. */
|
|
|
2600 return (berk_signal (signal_number, action));
|
|
|
2601 #else
|
|
|
2602 sigemptyset (&new_action.sa_mask);
|
|
|
2603 new_action.sa_handler = action;
|
|
|
2604 #if defined (SA_RESTART)
|
|
|
2605 /* Emacs mostly works better with restartable system services. If this
|
|
|
2606 * flag exists, we probably want to turn it on here.
|
|
|
2607 */
|
|
|
2608 new_action.sa_flags = SA_RESTART;
|
|
|
2609 #else
|
|
|
2610 new_action.sa_flags = 0;
|
|
|
2611 #endif
|
|
|
2612 sigaction (signal_number, &new_action, &old_action);
|
|
|
2613 return (old_action.sa_handler);
|
|
|
2614 #endif /* DGUX */
|
|
|
2615
|
|
|
2616 #else /* not 0 */
|
|
|
2617
|
|
|
2618 sigemptyset (&new_action.sa_mask);
|
|
|
2619 new_action.sa_handler = action;
|
|
|
2620 #if defined (SA_INTERRUPT) /* don't restart system calls, under SunOS */
|
|
|
2621 new_action.sa_flags = SA_INTERRUPT;
|
|
|
2622 #else
|
|
|
2623 new_action.sa_flags = 0;
|
|
|
2624 #endif
|
|
|
2625 sigaction (signal_number, &new_action, &old_action);
|
|
|
2626 return (old_action.sa_handler);
|
|
|
2627
|
|
|
2628 #endif /* not 0 */
|
|
|
2629 }
|
|
|
2630
|
|
|
2631 #elif defined (HAVE_SIGBLOCK)
|
|
|
2632
|
|
|
2633 /* We use sigvec() rather than signal() if we have it, because
|
|
|
2634 it lets us specify interruptible system calls. */
|
|
|
2635 signal_handler_t
|
|
|
2636 sys_do_signal (int signal_number, signal_handler_t action)
|
|
|
2637 {
|
|
|
2638 struct sigvec vec, ovec;
|
|
|
2639
|
|
|
2640 vec.sv_handler = action;
|
|
|
2641 vec.sv_mask = 0;
|
|
|
2642 #ifdef SV_INTERRUPT /* don't restart system calls */
|
|
|
2643 vec.sv_flags = SV_INTERRUPT;
|
|
|
2644 #else
|
|
|
2645 vec.sv_flags = 0;
|
|
|
2646 #endif
|
|
|
2647
|
|
|
2648 sigvec (signal_number, &vec, &ovec);
|
|
|
2649
|
|
|
2650 return (ovec.sv_handler);
|
|
|
2651 }
|
|
|
2652
|
|
|
2653 #endif /* HAVE_SIGBLOCK (HAVE_SIGPROCMASK) */
|
|
|
2654
|
|
|
2655
|
|
|
2656 /************************************************************************/
|
|
|
2657 /* Emulation of strerror() */
|
|
|
2658 /************************************************************************/
|
|
|
2659
|
|
|
2660 #ifndef HAVE_STRERROR
|
|
|
2661
|
|
|
2662 #if defined (VMS) && defined (LINK_CRTL_SHARE) && defined (SHAREABLE_LIB_BUG)
|
|
|
2663
|
|
|
2664 /* Variables declared noshare and initialized in sharable libraries
|
|
|
2665 cannot be shared. The VMS linker incorrectly forces you to use a private
|
|
|
2666 version which is uninitialized... If not for this "feature", we
|
|
|
2667 could use the C library definition of sys_nerr and sys_errlist. */
|
|
|
2668 CONST char *sys_errlist[] =
|
|
|
2669 {
|
|
|
2670 "error 0",
|
|
|
2671 "not owner",
|
|
|
2672 "no such file or directory",
|
|
|
2673 "no such process",
|
|
|
2674 "interrupted system call",
|
|
|
2675 "I/O error",
|
|
|
2676 "no such device or address",
|
|
|
2677 "argument list too long",
|
|
|
2678 "exec format error",
|
|
|
2679 "bad file number",
|
|
|
2680 "no child process",
|
|
|
2681 "no more processes",
|
|
|
2682 "not enough memory",
|
|
|
2683 "permission denied",
|
|
|
2684 "bad address",
|
|
|
2685 "block device required",
|
|
|
2686 "mount devices busy",
|
|
|
2687 "file exists",
|
|
|
2688 "cross-device link",
|
|
|
2689 "no such device",
|
|
|
2690 "not a directory",
|
|
|
2691 "is a directory",
|
|
|
2692 "invalid argument",
|
|
|
2693 "file table overflow",
|
|
|
2694 "too many open files",
|
|
|
2695 "not a typewriter",
|
|
|
2696 "text file busy",
|
|
|
2697 "file too big",
|
|
|
2698 "no space left on device",
|
|
|
2699 "illegal seek",
|
|
|
2700 "read-only file system",
|
|
|
2701 "too many links",
|
|
|
2702 "broken pipe",
|
|
|
2703 "math argument",
|
|
|
2704 "result too large",
|
|
|
2705 "I/O stream empty",
|
|
|
2706 "vax/vms specific error code nontranslatable error"
|
|
|
2707 };
|
|
|
2708 int sys_nerr = countof (sys_errlist);
|
|
|
2709
|
|
|
2710 #endif /* VMS & LINK_CRTL_SHARE & SHAREABLE_LIB_BUG */
|
|
|
2711
|
|
|
2712
|
|
|
2713 #if !defined(NeXT) && !defined(__alpha) && !defined(MACH) && !defined(LINUX) && !defined(IRIX) && !defined(__NetBSD__)
|
|
|
2714 /* Linux added here by Raymond L. Toy <toy@alydar.crd.ge.com> for XEmacs. */
|
|
|
2715 /* Irix added here by gparker@sni-usa.com for XEmacs. */
|
|
|
2716 /* NetBSD added here by James R Grinter <jrg@doc.ic.ac.uk> for XEmacs */
|
|
|
2717 extern CONST char *sys_errlist[];
|
|
|
2718 extern int sys_nerr;
|
|
|
2719 #endif
|
|
|
2720
|
|
|
2721 #ifdef __NetBSD__
|
|
|
2722 extern char *sys_errlist[];
|
|
|
2723 extern int sys_nerr;
|
|
|
2724 #endif
|
|
|
2725
|
|
|
2726
|
|
|
2727 CONST char *
|
|
|
2728 strerror (int errnum)
|
|
|
2729 {
|
|
|
2730 if (errnum >= 0 && errnum < sys_nerr)
|
|
|
2731 return sys_errlist[errnum];
|
|
|
2732 return ((CONST char *) GETTEXT ("Unknown error"));
|
|
|
2733 }
|
|
|
2734
|
|
|
2735 #endif /* ! HAVE_STRERROR */
|
|
|
2736
|
|
|
2737
|
|
|
2738
|
|
|
2739 /************************************************************************/
|
|
|
2740 /* Encapsulations of system calls */
|
|
|
2741 /************************************************************************/
|
|
|
2742
|
|
|
2743 #define PATHNAME_CONVERT_OUT(path) \
|
|
|
2744 GET_C_CHARPTR_EXT_FILENAME_DATA_ALLOCA (path, path)
|
|
|
2745
|
|
|
2746 /***** VMS versions are at the bottom of this file *****/
|
|
|
2747 /***** MSDOS versions are in msdos.c *****/
|
|
|
2748
|
|
|
2749 /***************** low-level calls ****************/
|
|
|
2750
|
|
|
2751 /*
|
|
|
2752 * On USG systems the system calls are INTERRUPTIBLE by signals
|
|
|
2753 * that the user program has elected to catch. Thus the system call
|
|
|
2754 * must be retried in these cases. To handle this without massive
|
|
|
2755 * changes in the source code, we remap the standard system call names
|
|
|
2756 * to names for our own functions in sysdep.c that do the system call
|
|
|
2757 * with retries. Actually, for portability reasons, it is good
|
|
|
2758 * programming practice, as this example shows, to limit all actual
|
|
|
2759 * system calls to a single occurrence in the source. Sure, this
|
|
|
2760 * adds an extra level of function call overhead but it is almost
|
|
|
2761 * always negligible. Fred Fish, Unisoft Systems Inc.
|
|
|
2762 */
|
|
|
2763
|
|
|
2764 /* Ben sez: read Dick Gabriel's essay about the Worse Is Better
|
|
|
2765 approach to programming and its connection to the silly
|
|
|
2766 interruptible-system-call business. To find it, look at
|
|
|
2767 Jamie's home page (http://www.netscape.com/people/jwz). */
|
|
|
2768
|
|
|
2769 #ifdef ENCAPSULATE_OPEN
|
|
|
2770
|
|
|
2771 int
|
|
|
2772 sys_open (CONST char *path, int oflag, ...)
|
|
|
2773 {
|
|
|
2774 int mode;
|
|
|
2775 va_list ap;
|
|
|
2776
|
|
|
2777 va_start (ap, oflag);
|
|
|
2778 mode = va_arg (ap, int);
|
|
|
2779 va_end (ap);
|
|
|
2780
|
|
|
2781 PATHNAME_CONVERT_OUT (path);
|
|
|
2782 #ifdef INTERRUPTIBLE_OPEN
|
|
|
2783 {
|
|
|
2784 int rtnval;
|
|
|
2785 while ((rtnval = open (path, oflag, mode)) == -1
|
|
|
2786 && (errno == EINTR));
|
|
|
2787 return rtnval;
|
|
|
2788 }
|
|
|
2789 #else
|
|
|
2790 return open (path, oflag, mode);
|
|
|
2791 #endif
|
|
|
2792 }
|
|
|
2793
|
|
|
2794 #endif /* ENCAPSULATE_OPEN */
|
|
|
2795
|
|
|
2796 #ifdef ENCAPSULATE_CLOSE
|
|
|
2797
|
|
|
2798 int
|
|
|
2799 sys_close (int fd)
|
|
|
2800 {
|
|
|
2801 #ifdef INTERRUPTIBLE_CLOSE
|
|
|
2802 int did_retry = 0;
|
|
|
2803 register int rtnval;
|
|
|
2804
|
|
|
2805 while ((rtnval = close (fd)) == -1
|
|
|
2806 && (errno == EINTR))
|
|
|
2807 did_retry = 1;
|
|
|
2808
|
|
|
2809 /* If close is interrupted SunOS 4.1 may or may not have closed the
|
|
|
2810 file descriptor. If it did the second close will fail with
|
|
|
2811 errno = EBADF. That means we have succeeded. */
|
|
|
2812 if (rtnval == -1 && did_retry && errno == EBADF)
|
|
|
2813 return 0;
|
|
|
2814
|
|
|
2815 return rtnval;
|
|
|
2816 #else
|
|
|
2817 return close (fd);
|
|
|
2818 #endif
|
|
|
2819 }
|
|
|
2820
|
|
|
2821 #endif /* ENCAPSULATE_CLOSE */
|
|
|
2822
|
|
|
2823 int
|
|
|
2824 sys_read_1 (int fildes, void *buf, unsigned int nbyte, int allow_quit)
|
|
|
2825 {
|
|
|
2826 #ifdef VMS
|
|
|
2827 return vms_read (fildes, buf, nbyte);
|
|
|
2828 #else
|
|
|
2829 int rtnval;
|
|
|
2830
|
|
|
2831 /* No harm in looping regardless of the INTERRUPTIBLE_IO setting. */
|
|
|
2832 while ((rtnval = read (fildes, buf, nbyte)) == -1
|
|
|
2833 && (errno == EINTR))
|
|
|
2834 {
|
|
|
2835 if (allow_quit)
|
|
|
2836 REALLY_QUIT;
|
|
|
2837 }
|
|
|
2838 return rtnval;
|
|
|
2839 #endif
|
|
|
2840 }
|
|
|
2841
|
|
|
2842 #ifdef ENCAPSULATE_READ
|
|
|
2843
|
|
|
2844 int
|
|
|
2845 sys_read (int fildes, void *buf, unsigned int nbyte)
|
|
|
2846 {
|
|
|
2847 return sys_read_1 (fildes, buf, nbyte, 0);
|
|
|
2848 }
|
|
|
2849
|
|
|
2850 #endif /* ENCAPSULATE_READ */
|
|
|
2851
|
|
|
2852 int
|
|
|
2853 sys_write_1 (int fildes, CONST void *buf, unsigned int nbyte, int allow_quit)
|
|
|
2854 {
|
|
|
2855 #ifdef VMS
|
|
|
2856 return vms_write (fildes, buf, nbyte);
|
|
|
2857 #else
|
|
|
2858 int rtnval;
|
|
|
2859 int bytes_written = 0;
|
|
|
2860 CONST char *b = buf;
|
|
|
2861
|
|
|
2862 /* No harm in looping regardless of the INTERRUPTIBLE_IO setting. */
|
|
|
2863 while (nbyte > 0)
|
|
|
2864 {
|
|
|
2865 rtnval = write (fildes, b, nbyte);
|
|
|
2866
|
|
|
2867 if (allow_quit)
|
|
|
2868 REALLY_QUIT;
|
|
|
2869
|
|
|
2870 if (rtnval == -1)
|
|
|
2871 {
|
|
|
2872 if (errno == EINTR)
|
|
|
2873 continue;
|
|
|
2874 else
|
|
|
2875 return (bytes_written ? bytes_written : -1);
|
|
|
2876 }
|
|
|
2877 b += rtnval;
|
|
|
2878 nbyte -= rtnval;
|
|
|
2879 bytes_written += rtnval;
|
|
|
2880 }
|
|
|
2881 return (bytes_written);
|
|
|
2882 #endif
|
|
|
2883 }
|
|
|
2884
|
|
|
2885 #ifdef ENCAPSULATE_WRITE
|
|
|
2886
|
|
|
2887 int
|
|
|
2888 sys_write (int fildes, CONST void *buf, unsigned int nbyte)
|
|
|
2889 {
|
|
|
2890 return sys_write_1 (fildes, buf, nbyte, 0);
|
|
|
2891 }
|
|
|
2892
|
|
|
2893 #endif /* ENCAPSULATE_WRITE */
|
|
|
2894
|
|
|
2895
|
|
|
2896 /**************** stdio calls ****************/
|
|
|
2897
|
|
|
2898 /* There is at least some evidence that the stdio calls are interruptible
|
|
|
2899 just like the normal system calls, at least on some systems. In any
|
|
|
2900 case, it doesn't hurt to encapsulate them. */
|
|
|
2901
|
|
|
2902 /* #### Should also encapsulate fflush().
|
|
|
2903 #### Should conceivably encapsulate getchar() etc. What a pain! */
|
|
|
2904
|
|
|
2905 #ifdef ENCAPSULATE_FOPEN
|
|
|
2906
|
|
|
2907 FILE *
|
|
|
2908 sys_fopen (CONST char *path, CONST char *type)
|
|
|
2909 {
|
|
|
2910 PATHNAME_CONVERT_OUT (path);
|
|
|
2911 #ifdef INTERRUPTIBLE_OPEN
|
|
|
2912 {
|
|
|
2913 FILE *rtnval;
|
|
|
2914 while (!(rtnval = fopen (path, type)) && (errno == EINTR));
|
|
|
2915 return rtnval;
|
|
|
2916 }
|
|
|
2917 #else
|
|
|
2918 return fopen (path, type);
|
|
|
2919 #endif
|
|
|
2920 }
|
|
|
2921
|
|
|
2922 #endif /* ENCAPSULATE_FOPEN */
|
|
|
2923
|
|
|
2924 #ifdef ENCAPSULATE_FCLOSE
|
|
|
2925
|
|
|
2926 int
|
|
|
2927 sys_fclose (FILE *stream)
|
|
|
2928 {
|
|
|
2929 #ifdef INTERRUPTIBLE_CLOSE
|
|
|
2930 int rtnval;
|
|
|
2931
|
|
|
2932 while ((rtnval = fclose (stream)) == EOF
|
|
|
2933 && (errno == EINTR))
|
|
|
2934 ;
|
|
|
2935 return rtnval;
|
|
|
2936 #else
|
|
|
2937 return fclose (stream);
|
|
|
2938 #endif
|
|
|
2939 }
|
|
|
2940
|
|
|
2941 #endif /* ENCAPSULATE_FCLOSE */
|
|
|
2942
|
|
|
2943 #ifdef ENCAPSULATE_FREAD
|
|
|
2944
|
|
|
2945 size_t
|
|
|
2946 sys_fread (void *ptr, size_t size, size_t nitem, FILE *stream)
|
|
|
2947 {
|
|
|
2948 #ifdef INTERRUPTIBLE_IO
|
|
|
2949 size_t rtnval;
|
|
|
2950 size_t items_read = 0;
|
|
|
2951 char *b = (char *) ptr;
|
|
|
2952
|
|
|
2953 while (nitem > 0)
|
|
|
2954 {
|
|
|
2955 rtnval = fread (b, size, nitem, stream);
|
|
|
2956 if (rtnval == 0)
|
|
|
2957 {
|
|
|
2958 if (ferror (stream) && errno == EINTR)
|
|
|
2959 continue;
|
|
|
2960 else
|
|
|
2961 return items_read;
|
|
|
2962 }
|
|
|
2963 b += size*rtnval;
|
|
|
2964 nitem -= rtnval;
|
|
|
2965 items_read += rtnval;
|
|
|
2966 }
|
|
|
2967 return (items_read);
|
|
|
2968 #else
|
|
|
2969 return fread (ptr, size, nitem, stream);
|
|
|
2970 #endif
|
|
|
2971 }
|
|
|
2972
|
|
|
2973 #endif /* ENCAPSULATE_FREAD */
|
|
|
2974
|
|
|
2975 #ifdef ENCAPSULATE_FWRITE
|
|
|
2976
|
|
|
2977 size_t
|
|
|
2978 sys_fwrite (CONST void *ptr, size_t size, size_t nitem, FILE *stream)
|
|
|
2979 {
|
|
|
2980 #ifdef INTERRUPTIBLE_IO
|
|
|
2981 size_t rtnval;
|
|
|
2982 size_t items_written = 0;
|
|
|
2983 CONST char *b = (CONST char *) ptr;
|
|
|
2984
|
|
|
2985 while (nitem > 0)
|
|
|
2986 {
|
|
|
2987 rtnval = fwrite (b, size, nitem, stream);
|
|
|
2988 if (rtnval == 0)
|
|
|
2989 {
|
|
|
2990 if (ferror (stream) && errno == EINTR)
|
|
|
2991 continue;
|
|
|
2992 else
|
|
|
2993 return items_written;
|
|
|
2994 }
|
|
|
2995 b += size*rtnval;
|
|
|
2996 nitem -= rtnval;
|
|
|
2997 items_written += rtnval;
|
|
|
2998 }
|
|
|
2999 return (items_written);
|
|
|
3000 #elif defined (VMS)
|
|
|
3001 return vms_fwrite (ptr, size, nitem, stream);
|
|
|
3002 #else
|
|
|
3003 return fwrite (ptr, size, nitem, stream);
|
|
|
3004 #endif
|
|
|
3005 }
|
|
|
3006
|
|
|
3007 #endif /* ENCAPSULATE_FWRITE */
|
|
|
3008
|
|
|
3009
|
|
|
3010 /********************* directory calls *******************/
|
|
|
3011
|
|
|
3012 #ifdef ENCAPSULATE_CHDIR
|
|
|
3013
|
|
|
3014 int
|
|
|
3015 sys_chdir (CONST char *path)
|
|
|
3016 {
|
|
|
3017 PATHNAME_CONVERT_OUT (path);
|
|
|
3018 #ifdef MSDOS
|
|
|
3019 return dos_chdir (path);
|
|
|
3020 #else
|
|
|
3021 return chdir (path);
|
|
|
3022 #endif
|
|
|
3023 }
|
|
|
3024
|
|
|
3025 #endif /* ENCAPSULATE_CHDIR */
|
|
|
3026
|
|
|
3027 #ifdef ENCAPSULATE_MKDIR
|
|
|
3028
|
|
|
3029 int
|
|
|
3030 sys_mkdir (CONST char *path, int mode)
|
|
|
3031 {
|
|
|
3032 PATHNAME_CONVERT_OUT (path);
|
|
|
3033 return mkdir (path, mode);
|
|
|
3034 }
|
|
|
3035
|
|
|
3036 #endif /* ENCAPSULATE_MKDIR */
|
|
|
3037
|
|
|
3038 #ifdef ENCAPSULATE_OPENDIR
|
|
|
3039
|
|
|
3040 DIR *
|
|
|
3041 sys_opendir (CONST char *filename)
|
|
|
3042 {
|
|
|
3043 DIR *rtnval;
|
|
|
3044 PATHNAME_CONVERT_OUT (filename);
|
|
|
3045
|
|
|
3046 while (!(rtnval = opendir (filename))
|
|
|
3047 && (errno == EINTR))
|
|
|
3048 ;
|
|
|
3049 return rtnval;
|
|
|
3050 }
|
|
|
3051
|
|
|
3052 #endif /* ENCAPSULATE_OPENDIR */
|
|
|
3053
|
|
|
3054 #ifdef ENCAPSULATE_READDIR
|
|
|
3055
|
|
|
3056 DIRENTRY *
|
|
|
3057 sys_readdir (DIR *dirp)
|
|
|
3058 {
|
|
|
3059 DIRENTRY *rtnval;
|
|
|
3060
|
|
|
3061 /* #### currently we don't do conversions on the incoming data */
|
|
|
3062 /* Apparently setting errno is necessary on some systems?
|
|
|
3063 Maybe readdir() doesn't always set errno ?! */
|
|
|
3064 while (!(errno = 0, rtnval = readdir (dirp))
|
|
|
3065 && (errno == EINTR))
|
|
|
3066 ;
|
|
|
3067 return rtnval;
|
|
|
3068 }
|
|
|
3069
|
|
|
3070 #endif /* ENCAPSULATE_READDIR */
|
|
|
3071
|
|
|
3072 #ifdef ENCAPSULATE_CLOSEDIR
|
|
|
3073
|
|
|
3074 int
|
|
|
3075 sys_closedir (DIR *dirp)
|
|
|
3076 {
|
|
|
3077 int rtnval;
|
|
|
3078
|
|
|
3079 while ((rtnval = closedir (dirp)) == -1
|
|
|
3080 && (errno == EINTR))
|
|
|
3081 ;
|
|
|
3082 return rtnval;
|
|
|
3083 }
|
|
|
3084
|
|
|
3085 #endif /* ENCAPSULATE_CLOSEDIR */
|
|
|
3086
|
|
|
3087 #ifdef ENCAPSULATE_RMDIR
|
|
|
3088
|
|
|
3089 int
|
|
|
3090 sys_rmdir (CONST char *path)
|
|
|
3091 {
|
|
|
3092 PATHNAME_CONVERT_OUT (path);
|
|
|
3093 return rmdir (path);
|
|
|
3094 }
|
|
|
3095
|
|
|
3096 #endif /* ENCAPSULATE_RMDIR */
|
|
|
3097
|
|
|
3098
|
|
|
3099 /***************** file-information calls ******************/
|
|
|
3100
|
|
|
3101 #ifdef ENCAPSULATE_ACCESS
|
|
|
3102
|
|
|
3103 int
|
|
|
3104 sys_access (CONST char *path, int mode)
|
|
|
3105 {
|
|
|
3106 PATHNAME_CONVERT_OUT (path);
|
|
|
3107 #ifdef VMS
|
|
|
3108 return vms_access (path, mode);
|
|
|
3109 #else
|
|
|
3110 return access (path, mode);
|
|
|
3111 #endif
|
|
|
3112 }
|
|
|
3113
|
|
|
3114 #endif /* ENCAPSULATE_ACCESS */
|
|
|
3115
|
|
|
3116 #ifdef ENCAPSULATE_LSTAT
|
|
|
3117
|
|
|
3118 int
|
|
|
3119 sys_lstat (CONST char *path, struct stat *buf)
|
|
|
3120 {
|
|
|
3121 PATHNAME_CONVERT_OUT (path);
|
|
|
3122 return lstat (path, buf);
|
|
|
3123 }
|
|
|
3124
|
|
|
3125 #endif /* ENCAPSULATE_LSTAT */
|
|
|
3126
|
|
|
3127 #ifdef ENCAPSULATE_READLINK
|
|
|
3128
|
|
|
3129 int
|
|
|
3130 sys_readlink (CONST char *path, char *buf, int bufsiz)
|
|
|
3131 {
|
|
|
3132 PATHNAME_CONVERT_OUT (path);
|
|
|
3133 /* #### currently we don't do conversions on the incoming data */
|
|
|
3134 return readlink (path, buf, bufsiz);
|
|
|
3135 }
|
|
|
3136
|
|
|
3137 #endif /* ENCAPSULATE_READLINK */
|
|
|
3138
|
|
|
3139 #ifdef ENCAPSULATE_STAT
|
|
|
3140
|
|
|
3141 int
|
|
|
3142 sys_stat (CONST char *path, struct stat *buf)
|
|
|
3143 {
|
|
|
3144 PATHNAME_CONVERT_OUT (path);
|
|
|
3145 return stat (path, buf);
|
|
|
3146 }
|
|
|
3147
|
|
|
3148 #endif /* ENCAPSULATE_STAT */
|
|
|
3149
|
|
|
3150
|
|
|
3151 /****************** file-manipulation calls *****************/
|
|
|
3152
|
|
|
3153 #ifdef ENCAPSULATE_CHMOD
|
|
|
3154
|
|
|
3155 int
|
|
|
3156 sys_chmod (CONST char *path, int mode)
|
|
|
3157 {
|
|
|
3158 PATHNAME_CONVERT_OUT (path);
|
|
|
3159 return chmod (path, mode);
|
|
|
3160 }
|
|
|
3161
|
|
|
3162 #endif /* ENCAPSULATE_CHMOD */
|
|
|
3163
|
|
|
3164 #ifdef ENCAPSULATE_CREAT
|
|
|
3165
|
|
|
3166 int
|
|
|
3167 sys_creat (CONST char *path, int mode)
|
|
|
3168 {
|
|
|
3169 PATHNAME_CONVERT_OUT (path);
|
|
|
3170 return creat (path, mode);
|
|
|
3171 }
|
|
|
3172
|
|
|
3173 #endif /* ENCAPSULATE_CREAT */
|
|
|
3174
|
|
|
3175 #ifdef ENCAPSULATE_LINK
|
|
|
3176
|
|
|
3177 int
|
|
|
3178 sys_link (CONST char *existing, CONST char *new)
|
|
|
3179 {
|
|
|
3180 PATHNAME_CONVERT_OUT (existing);
|
|
|
3181 PATHNAME_CONVERT_OUT (new);
|
|
|
3182 return link (existing, new);
|
|
|
3183 }
|
|
|
3184
|
|
|
3185 #endif /* ENCAPSULATE_LINK */
|
|
|
3186
|
|
|
3187 #ifdef ENCAPSULATE_RENAME
|
|
|
3188
|
|
|
3189 int
|
|
|
3190 sys_rename (CONST char *old, CONST char *new)
|
|
|
3191 {
|
|
|
3192 PATHNAME_CONVERT_OUT (old);
|
|
|
3193 PATHNAME_CONVERT_OUT (new);
|
|
|
3194 return rename (old, new);
|
|
|
3195 }
|
|
|
3196
|
|
|
3197 #endif /* ENCAPSULATE_RENAME */
|
|
|
3198
|
|
|
3199 #ifdef ENCAPSULATE_SYMLINK
|
|
|
3200
|
|
|
3201 int
|
|
|
3202 sys_symlink (CONST char *name1, CONST char *name2)
|
|
|
3203 {
|
|
|
3204 PATHNAME_CONVERT_OUT (name1);
|
|
|
3205 PATHNAME_CONVERT_OUT (name2);
|
|
|
3206 return symlink (name1, name2);
|
|
|
3207 }
|
|
|
3208
|
|
|
3209 #endif /* ENCAPSULATE_SYMLINK */
|
|
|
3210
|
|
|
3211 #ifdef ENCAPSULATE_UNLINK
|
|
|
3212
|
|
|
3213 int
|
|
|
3214 sys_unlink (CONST char *path)
|
|
|
3215 {
|
|
|
3216 PATHNAME_CONVERT_OUT (path);
|
|
|
3217 return unlink (path);
|
|
|
3218 }
|
|
|
3219
|
|
|
3220 #endif /* ENCAPSULATE_UNLINK */
|
|
|
3221
|
|
|
3222
|
|
|
3223 /************************************************************************/
|
|
|
3224 /* Emulations of missing system calls */
|
|
|
3225 /************************************************************************/
|
|
|
3226
|
|
|
3227 /***** (these are primarily required for USG, it seems) *****/
|
|
|
3228
|
|
|
3229 /*
|
|
|
3230 * Warning, this function may not duplicate 4.2 action properly
|
|
|
3231 * under error conditions.
|
|
|
3232 */
|
|
|
3233
|
|
|
3234 #ifndef HAVE_GETWD
|
|
|
3235
|
|
|
3236 char *
|
|
|
3237 getwd (char *pathname)
|
|
|
3238 {
|
|
|
3239 char *npath, *spath;
|
|
|
3240 #if !__STDC__ && !defined(STDC_HEADERS)
|
|
|
3241 extern char *getcwd ();
|
|
|
3242 #endif
|
|
|
3243
|
|
|
3244 spath = npath = getcwd ((char *) 0, MAXPATHLEN);
|
|
|
3245 if (spath == 0)
|
|
|
3246 return spath;
|
|
|
3247 /* On Altos 3068, getcwd can return @hostname/dir, so discard
|
|
|
3248 up to first slash. Should be harmless on other systems. */
|
|
|
3249 while (*npath && *npath != '/')
|
|
|
3250 npath++;
|
|
|
3251 strcpy (pathname, npath);
|
|
|
3252 xfree (spath); /* getcwd uses malloc */
|
|
|
3253 return pathname;
|
|
|
3254 }
|
|
|
3255
|
|
|
3256 #endif /* HAVE_GETWD */
|
|
|
3257
|
|
|
3258 /*
|
|
|
3259 * Emulate rename using unlink/link. Note that this is
|
|
|
3260 * only partially correct. Also, doesn't enforce restriction
|
|
|
3261 * that files be of same type (regular->regular, dir->dir, etc).
|
|
|
3262 */
|
|
|
3263
|
|
|
3264 #ifndef HAVE_RENAME
|
|
|
3265
|
|
|
3266 int
|
|
|
3267 rename (CONST char *from, CONST char *to)
|
|
|
3268 {
|
|
|
3269 if (access (from, 0) == 0)
|
|
|
3270 {
|
|
|
3271 unlink (to);
|
|
|
3272 if (link (from, to) == 0)
|
|
|
3273 if (unlink (from) == 0)
|
|
|
3274 return (0);
|
|
|
3275 }
|
|
|
3276 return (-1);
|
|
|
3277 }
|
|
|
3278
|
|
|
3279 #endif
|
|
|
3280
|
|
|
3281 #ifdef HPUX
|
|
|
3282 #ifndef HAVE_PERROR
|
|
|
3283
|
|
|
3284 /* HPUX curses library references perror, but as far as we know
|
|
|
3285 it won't be called. Anyway this definition will do for now. */
|
|
|
3286
|
|
|
3287 perror (void)
|
|
|
3288 {
|
|
|
3289 }
|
|
|
3290
|
|
|
3291 #endif /* not HAVE_PERROR */
|
|
|
3292 #endif /* HPUX */
|
|
|
3293
|
|
|
3294 #ifndef HAVE_DUP2
|
|
|
3295
|
|
|
3296 /*
|
|
|
3297 * Emulate BSD dup2. First close newd if it already exists.
|
|
|
3298 * Then, attempt to dup oldd. If not successful, call dup2 recursively
|
|
|
3299 * until we are, then close the unsuccessful ones.
|
|
|
3300 */
|
|
|
3301
|
|
|
3302 int
|
|
|
3303 dup2 (int oldd, int newd)
|
|
|
3304 {
|
|
|
3305 int fd, ret;
|
|
|
3306
|
|
|
3307 sys_close (newd);
|
|
|
3308
|
|
|
3309 #ifdef F_DUPFD
|
|
|
3310 fd = fcntl (oldd, F_DUPFD, newd);
|
|
|
3311 if (fd != newd)
|
|
|
3312 error ("can't dup2 (%i,%i) : %s", oldd, newd, strerror (errno));
|
|
|
3313 #else
|
|
|
3314 fd = dup (old);
|
|
|
3315 if (fd == -1)
|
|
|
3316 return -1;
|
|
|
3317 if (fd == new)
|
|
|
3318 return new;
|
|
|
3319 ret = dup2 (old, new);
|
|
|
3320 sys_close (fd);
|
|
|
3321 return ret;
|
|
|
3322 #endif /* F_DUPFD */
|
|
|
3323 }
|
|
|
3324
|
|
|
3325 #endif /* not HAVE_DUP2 */
|
|
|
3326
|
|
|
3327 /*
|
|
|
3328 * Gettimeofday. Simulate as much as possible. Only accurate
|
|
|
3329 * to nearest second. Emacs doesn't use tzp so ignore it for now.
|
|
|
3330 */
|
|
|
3331
|
|
|
3332 #if !defined (HAVE_GETTIMEOFDAY)
|
|
|
3333
|
|
|
3334 int
|
|
|
3335 gettimeofday (struct timeval *tp, struct timezone *tzp)
|
|
|
3336 {
|
|
|
3337 extern long time ();
|
|
|
3338
|
|
|
3339 tp->tv_sec = time ((long *)0);
|
|
|
3340 tp->tv_usec = 0;
|
|
|
3341 if (tzp != 0)
|
|
|
3342 tzp->tz_minuteswest = -1;
|
|
|
3343 return (0);
|
|
|
3344 }
|
|
|
3345
|
|
|
3346 #endif /* !HAVE_GETTIMEOFDAY */
|
|
|
3347
|
|
|
3348 /* No need to encapsulate utime and utimes explicitly because all
|
|
|
3349 access to those functions goes through the following. */
|
|
|
3350
|
|
|
3351 int
|
|
|
3352 set_file_times (char *filename, EMACS_TIME atime, EMACS_TIME mtime)
|
|
|
3353 {
|
|
|
3354 #ifdef HAVE_UTIMES
|
|
|
3355 struct timeval tv[2];
|
|
|
3356 tv[0] = atime;
|
|
|
3357 tv[1] = mtime;
|
|
|
3358 return utimes (filename, tv);
|
|
|
3359 #else /* not HAVE_UTIMES */
|
|
|
3360 struct utimbuf utb;
|
|
|
3361 utb.actime = EMACS_SECS (atime);
|
|
|
3362 utb.modtime = EMACS_SECS (mtime);
|
|
|
3363 return utime (filename, &utb);
|
|
|
3364 #endif /* not HAVE_UTIMES */
|
|
|
3365 }
|
|
|
3366
|
|
|
3367 /* */
|
|
|
3368
|
|
|
3369 static long ticks_per_second;
|
|
|
3370 static long orig_user_ticks, orig_system_ticks;
|
|
|
3371 EMACS_TIME orig_real_time;
|
|
|
3372
|
|
|
3373 static int process_times_available;
|
|
|
3374
|
|
|
3375 /* Return the relative user and system tick count. We try to
|
|
|
3376 maintain calculations in terms of integers as long as possible
|
|
|
3377 for increased accuracy. */
|
|
|
3378
|
|
|
3379 static int
|
|
|
3380 get_process_times_1 (long *user_ticks, long *system_ticks)
|
|
|
3381 {
|
|
|
3382 #if defined (_SC_CLK_TCK) || defined (CLK_TCK)
|
|
|
3383 /* We have the POSIX times() function available. */
|
|
|
3384 struct tms tttt;
|
|
|
3385 times (&tttt);
|
|
|
3386 *user_ticks = (long) tttt.tms_utime;
|
|
|
3387 *system_ticks = (long) tttt.tms_stime;
|
|
|
3388 return 1;
|
|
|
3389 #elif defined (CLOCKS_PER_SEC)
|
|
|
3390 *user_time = (long) clock ();
|
|
|
3391 *system_time = 0;
|
|
|
3392 return 1;
|
|
|
3393 #else
|
|
|
3394 return 0;
|
|
|
3395 #endif
|
|
|
3396 }
|
|
|
3397
|
|
|
3398 void
|
|
|
3399 init_process_times_very_early (void)
|
|
|
3400 {
|
|
|
3401 #if defined (_SC_CLK_TCK)
|
|
|
3402 ticks_per_second = sysconf (_SC_CLK_TCK);
|
|
|
3403 #elif defined (CLK_TCK)
|
|
|
3404 ticks_per_second = CLK_TCK;
|
|
|
3405 #elif defined (CLOCKS_PER_SEC)
|
|
|
3406 ticks_per_second = CLOCKS_PER_SEC;
|
|
|
3407 #endif
|
|
|
3408
|
|
|
3409 process_times_available = get_process_times_1 (&orig_user_ticks,
|
|
|
3410 &orig_system_ticks);
|
|
|
3411 EMACS_GET_TIME (orig_real_time);
|
|
|
3412 }
|
|
|
3413
|
|
|
3414 /* Return the user and system times used up by this process so far. */
|
|
|
3415 void
|
|
|
3416 get_process_times (double *user_time, double *system_time, double *real_time)
|
|
|
3417 {
|
|
|
3418 EMACS_TIME curr_real_time;
|
|
|
3419 EMACS_TIME elapsed_time;
|
|
|
3420 long curr_user_ticks, curr_system_ticks;
|
|
|
3421
|
|
|
3422 EMACS_GET_TIME (curr_real_time);
|
|
|
3423 EMACS_SUB_TIME (elapsed_time, curr_real_time, orig_real_time);
|
|
|
3424 *real_time = (EMACS_SECS (elapsed_time)
|
|
|
3425 + ((double) EMACS_USECS (elapsed_time)) / 1000000);
|
|
|
3426 if (get_process_times_1 (&curr_user_ticks, &curr_system_ticks))
|
|
|
3427 {
|
|
|
3428 *user_time = (((double) (curr_user_ticks - orig_user_ticks))
|
|
|
3429 / ticks_per_second);
|
|
|
3430 *system_time = (((double) (curr_system_ticks - orig_system_ticks))
|
|
|
3431 / ticks_per_second);
|
|
|
3432 }
|
|
|
3433 else
|
|
|
3434 {
|
|
|
3435 /* MS-DOS or equally lame OS */
|
|
|
3436 *user_time = *real_time;
|
|
|
3437 *system_time = 0;
|
|
|
3438 }
|
|
|
3439 }
|
|
|
3440
|
|
|
3441 #ifndef HAVE_RANDOM
|
|
|
3442 #ifdef random
|
|
|
3443 #define HAVE_RANDOM
|
|
|
3444 #endif
|
|
|
3445 #endif
|
|
|
3446
|
|
|
3447 /* Figure out how many bits the system's random number generator uses.
|
|
|
3448 `random' and `lrand48' are assumed to return 31 usable bits.
|
|
|
3449 BSD `rand' returns a 31 bit value but the low order bits are unusable;
|
|
|
3450 so we'll shift it and treat it like the 15-bit USG `rand'. */
|
|
|
3451
|
|
|
3452 #ifndef RAND_BITS
|
|
|
3453 # ifdef HAVE_RANDOM
|
|
|
3454 # define RAND_BITS 31
|
|
|
3455 # else /* !HAVE_RANDOM */
|
|
|
3456 # ifdef HAVE_LRAND48
|
|
|
3457 # define RAND_BITS 31
|
|
|
3458 # define random lrand48
|
|
|
3459 # else /* !HAVE_LRAND48 */
|
|
|
3460 # define RAND_BITS 15
|
|
|
3461 # if RAND_MAX == 32767
|
|
|
3462 # define random rand
|
|
|
3463 # else /* RAND_MAX != 32767 */
|
|
|
3464 # if RAND_MAX == 2147483647
|
|
|
3465 # define random() (rand () >> 16)
|
|
|
3466 # else /* RAND_MAX != 2147483647 */
|
|
|
3467 # ifdef USG
|
|
|
3468 # define random rand
|
|
|
3469 # else
|
|
|
3470 # define random() (rand () >> 16)
|
|
|
3471 # endif /* !BSD */
|
|
|
3472 # endif /* RAND_MAX != 2147483647 */
|
|
|
3473 # endif /* RAND_MAX != 32767 */
|
|
|
3474 # endif /* !HAVE_LRAND48 */
|
|
|
3475 # endif /* !HAVE_RANDOM */
|
|
|
3476 #endif /* !RAND_BITS */
|
|
|
3477
|
|
|
3478 void seed_random (long arg);
|
|
|
3479 void
|
|
|
3480 seed_random (long arg)
|
|
|
3481 {
|
|
|
3482 #ifdef HAVE_RANDOM
|
|
|
3483 srandom ((unsigned int)arg);
|
|
|
3484 #else
|
|
|
3485 # ifdef HAVE_LRAND48
|
|
|
3486 srand48 (arg);
|
|
|
3487 # else
|
|
|
3488 srand ((unsigned int)arg);
|
|
|
3489 # endif
|
|
|
3490 #endif
|
|
|
3491 }
|
|
|
3492
|
|
|
3493 /*
|
|
|
3494 * Build a full Emacs-sized word out of whatever we've got.
|
|
|
3495 * This suffices even for a 64-bit architecture with a 15-bit rand.
|
|
|
3496 */
|
|
|
3497 long get_random (void);
|
|
|
3498 long
|
|
|
3499 get_random (void)
|
|
|
3500 {
|
|
|
3501 long val = random ();
|
|
|
3502 #if VALBITS > RAND_BITS
|
|
|
3503 val = (val << RAND_BITS) ^ random ();
|
|
|
3504 #if VALBITS > 2*RAND_BITS
|
|
|
3505 val = (val << RAND_BITS) ^ random ();
|
|
|
3506 #if VALBITS > 3*RAND_BITS
|
|
|
3507 val = (val << RAND_BITS) ^ random ();
|
|
|
3508 #if VALBITS > 4*RAND_BITS
|
|
|
3509 val = (val << RAND_BITS) ^ random ();
|
|
|
3510 #endif /* need at least 5 */
|
|
|
3511 #endif /* need at least 4 */
|
|
|
3512 #endif /* need at least 3 */
|
|
|
3513 #endif /* need at least 2 */
|
|
|
3514 return val & ((1L << VALBITS) - 1);
|
|
|
3515 }
|
|
|
3516
|
|
|
3517 #ifdef WRONG_NAME_INSQUE
|
|
|
3518
|
|
|
3519 void
|
|
|
3520 insque (caddr_t q, caddr_t p)
|
|
|
3521 {
|
|
|
3522 _insque (q,p);
|
|
|
3523 }
|
|
|
3524
|
|
|
3525 #endif
|
|
|
3526
|
|
|
3527
|
|
|
3528 /************************************************************************/
|
|
|
3529 /* Strings corresponding to defined signals */
|
|
|
3530 /************************************************************************/
|
|
|
3531
|
|
|
3532 #if !defined (SYS_SIGLIST_DECLARED) && !defined (HAVE_SYS_SIGLIST)
|
|
|
3533
|
|
|
3534 #ifdef USG
|
|
|
3535 #ifdef AIX
|
|
|
3536 CONST char *sys_siglist[NSIG + 1] =
|
|
|
3537 {
|
|
|
3538 /* AIX has changed the signals a bit */
|
|
|
3539 DEFER_GETTEXT ("bogus signal"), /* 0 */
|
|
|
3540 DEFER_GETTEXT ("hangup"), /* 1 SIGHUP */
|
|
|
3541 DEFER_GETTEXT ("interrupt"), /* 2 SIGINT */
|
|
|
3542 DEFER_GETTEXT ("quit"), /* 3 SIGQUIT */
|
|
|
3543 DEFER_GETTEXT ("illegal instruction"), /* 4 SIGILL */
|
|
|
3544 DEFER_GETTEXT ("trace trap"), /* 5 SIGTRAP */
|
|
|
3545 DEFER_GETTEXT ("IOT instruction"), /* 6 SIGIOT */
|
|
|
3546 DEFER_GETTEXT ("crash likely"), /* 7 SIGDANGER */
|
|
|
3547 DEFER_GETTEXT ("floating point exception"), /* 8 SIGFPE */
|
|
|
3548 DEFER_GETTEXT ("kill"), /* 9 SIGKILL */
|
|
|
3549 DEFER_GETTEXT ("bus error"), /* 10 SIGBUS */
|
|
|
3550 DEFER_GETTEXT ("segmentation violation"), /* 11 SIGSEGV */
|
|
|
3551 DEFER_GETTEXT ("bad argument to system call"), /* 12 SIGSYS */
|
|
|
3552 DEFER_GETTEXT ("write on a pipe with no one to read it"), /* 13 SIGPIPE */
|
|
|
3553 DEFER_GETTEXT ("alarm clock"), /* 14 SIGALRM */
|
|
|
3554 DEFER_GETTEXT ("software termination signum"), /* 15 SIGTERM */
|
|
|
3555 DEFER_GETTEXT ("user defined signal 1"), /* 16 SIGUSR1 */
|
|
|
3556 DEFER_GETTEXT ("user defined signal 2"), /* 17 SIGUSR2 */
|
|
|
3557 DEFER_GETTEXT ("death of a child"), /* 18 SIGCLD */
|
|
|
3558 DEFER_GETTEXT ("power-fail restart"), /* 19 SIGPWR */
|
|
|
3559 DEFER_GETTEXT ("bogus signal"), /* 20 */
|
|
|
3560 DEFER_GETTEXT ("bogus signal"), /* 21 */
|
|
|
3561 DEFER_GETTEXT ("bogus signal"), /* 22 */
|
|
|
3562 DEFER_GETTEXT ("bogus signal"), /* 23 */
|
|
|
3563 DEFER_GETTEXT ("bogus signal"), /* 24 */
|
|
|
3564 DEFER_GETTEXT ("LAN I/O interrupt"), /* 25 SIGAIO */
|
|
|
3565 DEFER_GETTEXT ("PTY I/O interrupt"), /* 26 SIGPTY */
|
|
|
3566 DEFER_GETTEXT ("I/O intervention required"), /* 27 SIGIOINT */
|
|
|
3567 #ifdef AIXHFT
|
|
|
3568 DEFER_GETTEXT ("HFT grant"), /* 28 SIGGRANT */
|
|
|
3569 DEFER_GETTEXT ("HFT retract"), /* 29 SIGRETRACT */
|
|
|
3570 DEFER_GETTEXT ("HFT sound done"), /* 30 SIGSOUND */
|
|
|
3571 DEFER_GETTEXT ("HFT input ready"), /* 31 SIGMSG */
|
|
|
3572 #endif
|
|
|
3573 0
|
|
|
3574 };
|
|
|
3575 #else /* USG, not AIX */
|
|
|
3576 CONST char *sys_siglist[NSIG + 1] =
|
|
|
3577 {
|
|
|
3578 DEFER_GETTEXT ("bogus signal"), /* 0 */
|
|
|
3579 DEFER_GETTEXT ("hangup"), /* 1 SIGHUP */
|
|
|
3580 DEFER_GETTEXT ("interrupt"), /* 2 SIGINT */
|
|
|
3581 DEFER_GETTEXT ("quit"), /* 3 SIGQUIT */
|
|
|
3582 DEFER_GETTEXT ("illegal instruction"), /* 4 SIGILL */
|
|
|
3583 DEFER_GETTEXT ("trace trap"), /* 5 SIGTRAP */
|
|
|
3584 DEFER_GETTEXT ("IOT instruction"), /* 6 SIGIOT */
|
|
|
3585 DEFER_GETTEXT ("EMT instruction"), /* 7 SIGEMT */
|
|
|
3586 DEFER_GETTEXT ("floating point exception"), /* 8 SIGFPE */
|
|
|
3587 DEFER_GETTEXT ("kill"), /* 9 SIGKILL */
|
|
|
3588 DEFER_GETTEXT ("bus error"), /* 10 SIGBUS */
|
|
|
3589 DEFER_GETTEXT ("segmentation violation"), /* 11 SIGSEGV */
|
|
|
3590 DEFER_GETTEXT ("bad argument to system call"), /* 12 SIGSYS */
|
|
|
3591 DEFER_GETTEXT ("write on a pipe with no one to read it"), /* 13 SIGPIPE */
|
|
|
3592 DEFER_GETTEXT ("alarm clock"), /* 14 SIGALRM */
|
|
|
3593 DEFER_GETTEXT ("software termination signum"), /* 15 SIGTERM */
|
|
|
3594 DEFER_GETTEXT ("user defined signal 1"), /* 16 SIGUSR1 */
|
|
|
3595 DEFER_GETTEXT ("user defined signal 2"), /* 17 SIGUSR2 */
|
|
|
3596 DEFER_GETTEXT ("death of a child"), /* 18 SIGCLD */
|
|
|
3597 DEFER_GETTEXT ("power-fail restart"), /* 19 SIGPWR */
|
|
|
3598 #ifdef sun
|
|
|
3599 DEFER_GETTEXT ("window size changed"), /* 20 SIGWINCH */
|
|
|
3600 DEFER_GETTEXT ("urgent socket condition"), /* 21 SIGURG */
|
|
|
3601 DEFER_GETTEXT ("pollable event occurred"), /* 22 SIGPOLL */
|
|
|
3602 DEFER_GETTEXT ("stop (cannot be caught or ignored)"), /* 23 SIGSTOP */
|
|
|
3603 DEFER_GETTEXT ("user stop requested from tty"), /* 24 SIGTSTP */
|
|
|
3604 DEFER_GETTEXT ("stopped process has been continued"), /* 25 SIGCONT */
|
|
|
3605 DEFER_GETTEXT ("background tty read attempted"), /* 26 SIGTTIN */
|
|
|
3606 DEFER_GETTEXT ("background tty write attempted"), /* 27 SIGTTOU */
|
|
|
3607 DEFER_GETTEXT ("virtual timer expired"), /* 28 SIGVTALRM */
|
|
|
3608 DEFER_GETTEXT ("profiling timer expired"), /* 29 SIGPROF */
|
|
|
3609 DEFER_GETTEXT ("exceeded cpu limit"), /* 30 SIGXCPU */
|
|
|
3610 DEFER_GETTEXT ("exceeded file size limit"), /* 31 SIGXFSZ */
|
|
|
3611 DEFER_GETTEXT ("process's lwps are blocked"), /* 32 SIGWAITING */
|
|
|
3612 DEFER_GETTEXT ("special signal used by thread library"), /* 33 SIGLWP */
|
|
|
3613 #ifdef SIGFREEZE
|
|
|
3614 DEFER_GETTEXT ("special signal used by CPR"), /* 34 SIGFREEZE */
|
|
|
3615 #endif
|
|
|
3616 #ifdef SIGTHAW
|
|
|
3617 DEFER_GETTEXT ("special signal used by CPR"), /* 35 SIGTHAW */
|
|
|
3618 #endif
|
|
|
3619 #endif /* sun */
|
|
|
3620 0
|
|
|
3621 };
|
|
|
3622 #endif /* not AIX */
|
|
|
3623 #endif /* USG */
|
|
|
3624 #ifdef DGUX
|
|
|
3625 CONST char *sys_siglist[NSIG + 1] =
|
|
|
3626 {
|
|
|
3627 DEFER_GETTEXT ("null signal"), /* 0 SIGNULL */
|
|
|
3628 DEFER_GETTEXT ("hangup"), /* 1 SIGHUP */
|
|
|
3629 DEFER_GETTEXT ("interrupt"), /* 2 SIGINT */
|
|
|
3630 DEFER_GETTEXT ("quit"), /* 3 SIGQUIT */
|
|
|
3631 DEFER_GETTEXT ("illegal instruction"), /* 4 SIGILL */
|
|
|
3632 DEFER_GETTEXT ("trace trap"), /* 5 SIGTRAP */
|
|
|
3633 DEFER_GETTEXT ("abort termination"), /* 6 SIGABRT */
|
|
|
3634 DEFER_GETTEXT ("SIGEMT"), /* 7 SIGEMT */
|
|
|
3635 DEFER_GETTEXT ("floating point exception"), /* 8 SIGFPE */
|
|
|
3636 DEFER_GETTEXT ("kill"), /* 9 SIGKILL */
|
|
|
3637 DEFER_GETTEXT ("bus error"), /* 10 SIGBUS */
|
|
|
3638 DEFER_GETTEXT ("segmentation violation"), /* 11 SIGSEGV */
|
|
|
3639 DEFER_GETTEXT ("bad argument to system call"), /* 12 SIGSYS */
|
|
|
3640 DEFER_GETTEXT ("write on a pipe with no reader"), /* 13 SIGPIPE */
|
|
|
3641 DEFER_GETTEXT ("alarm clock"), /* 14 SIGALRM */
|
|
|
3642 DEFER_GETTEXT ("software termination signal"), /* 15 SIGTERM */
|
|
|
3643 DEFER_GETTEXT ("user defined signal 1"), /* 16 SIGUSR1 */
|
|
|
3644 DEFER_GETTEXT ("user defined signal 2"), /* 17 SIGUSR2 */
|
|
|
3645 DEFER_GETTEXT ("child stopped or terminated"), /* 18 SIGCLD */
|
|
|
3646 DEFER_GETTEXT ("power-fail restart"), /* 19 SIGPWR */
|
|
|
3647 DEFER_GETTEXT ("window size changed"), /* 20 SIGWINCH */
|
|
|
3648 DEFER_GETTEXT ("undefined"), /* 21 */
|
|
|
3649 DEFER_GETTEXT ("pollable event occurred"), /* 22 SIGPOLL */
|
|
|
3650 DEFER_GETTEXT ("sendable stop signal not from tty"), /* 23 SIGSTOP */
|
|
|
3651 DEFER_GETTEXT ("stop signal from tty"), /* 24 SIGSTP */
|
|
|
3652 DEFER_GETTEXT ("continue a stopped process"), /* 25 SIGCONT */
|
|
|
3653 DEFER_GETTEXT ("attempted background tty read"), /* 26 SIGTTIN */
|
|
|
3654 DEFER_GETTEXT ("attempted background tty write"), /* 27 SIGTTOU */
|
|
|
3655 DEFER_GETTEXT ("undefined"), /* 28 */
|
|
|
3656 DEFER_GETTEXT ("undefined"), /* 29 */
|
|
|
3657 DEFER_GETTEXT ("undefined"), /* 30 */
|
|
|
3658 DEFER_GETTEXT ("undefined"), /* 31 */
|
|
|
3659 DEFER_GETTEXT ("undefined"), /* 32 */
|
|
|
3660 DEFER_GETTEXT ("socket (TCP/IP) urgent data arrival"), /* 33 SIGURG */
|
|
|
3661 DEFER_GETTEXT ("I/O is possible"), /* 34 SIGIO */
|
|
|
3662 DEFER_GETTEXT ("exceeded cpu time limit"), /* 35 SIGXCPU */
|
|
|
3663 DEFER_GETTEXT ("exceeded file size limit"), /* 36 SIGXFSZ */
|
|
|
3664 DEFER_GETTEXT ("virtual time alarm"), /* 37 SIGVTALRM */
|
|
|
3665 DEFER_GETTEXT ("profiling time alarm"), /* 38 SIGPROF */
|
|
|
3666 DEFER_GETTEXT ("undefined"), /* 39 */
|
|
|
3667 DEFER_GETTEXT ("file record locks revoked"), /* 40 SIGLOST */
|
|
|
3668 DEFER_GETTEXT ("undefined"), /* 41 */
|
|
|
3669 DEFER_GETTEXT ("undefined"), /* 42 */
|
|
|
3670 DEFER_GETTEXT ("undefined"), /* 43 */
|
|
|
3671 DEFER_GETTEXT ("undefined"), /* 44 */
|
|
|
3672 DEFER_GETTEXT ("undefined"), /* 45 */
|
|
|
3673 DEFER_GETTEXT ("undefined"), /* 46 */
|
|
|
3674 DEFER_GETTEXT ("undefined"), /* 47 */
|
|
|
3675 DEFER_GETTEXT ("undefined"), /* 48 */
|
|
|
3676 DEFER_GETTEXT ("undefined"), /* 49 */
|
|
|
3677 DEFER_GETTEXT ("undefined"), /* 50 */
|
|
|
3678 DEFER_GETTEXT ("undefined"), /* 51 */
|
|
|
3679 DEFER_GETTEXT ("undefined"), /* 52 */
|
|
|
3680 DEFER_GETTEXT ("undefined"), /* 53 */
|
|
|
3681 DEFER_GETTEXT ("undefined"), /* 54 */
|
|
|
3682 DEFER_GETTEXT ("undefined"), /* 55 */
|
|
|
3683 DEFER_GETTEXT ("undefined"), /* 56 */
|
|
|
3684 DEFER_GETTEXT ("undefined"), /* 57 */
|
|
|
3685 DEFER_GETTEXT ("undefined"), /* 58 */
|
|
|
3686 DEFER_GETTEXT ("undefined"), /* 59 */
|
|
|
3687 DEFER_GETTEXT ("undefined"), /* 60 */
|
|
|
3688 DEFER_GETTEXT ("undefined"), /* 61 */
|
|
|
3689 DEFER_GETTEXT ("undefined"), /* 62 */
|
|
|
3690 DEFER_GETTEXT ("undefined"), /* 63 */
|
|
|
3691 DEFER_GETTEXT ("notification message in mess. queue"), /* 64 SIGDGNOTIFY */
|
|
|
3692 0
|
|
|
3693 };
|
|
|
3694 #endif /* DGUX */
|
|
|
3695
|
|
|
3696 #endif /* ! SYS_SIGLIST_DECLARED && ! HAVE_SYS_SIGLIST */
|
|
|
3697
|
|
|
3698
|
|
|
3699 /************************************************************************/
|
|
|
3700 /* Directory routines for systems that don't have them */
|
|
|
3701 /************************************************************************/
|
|
|
3702
|
|
|
3703 #ifdef SYSV_SYSTEM_DIR
|
|
|
3704
|
|
|
3705 #include <dirent.h>
|
|
|
3706
|
|
|
3707 #if defined(BROKEN_CLOSEDIR) || !defined(HAVE_CLOSEDIR)
|
|
|
3708 int
|
|
|
3709 closedir (DIR *dirp) /* stream from opendir */
|
|
|
3710 {
|
|
|
3711 int rtnval;
|
|
|
3712
|
|
|
3713 rtnval = sys_close (dirp->dd_fd);
|
|
|
3714
|
|
|
3715 /* Some systems (like Solaris) allocate the buffer and the DIR all
|
|
|
3716 in one block. Why in the world are we freeing this ourselves
|
|
|
3717 anyway? */
|
|
|
3718 #if ! (defined (sun) && defined (USG5_4))
|
|
|
3719 xfree ((char *) dirp->dd_buf); /* directory block defined in <dirent.h> */
|
|
|
3720 #endif
|
|
|
3721 xfree ((char *) dirp);
|
|
|
3722 return (rtnval);
|
|
|
3723 }
|
|
|
3724 #endif /* BROKEN_CLOSEDIR or not HAVE_CLOSEDIR */
|
|
|
3725 #endif /* SYSV_SYSTEM_DIR */
|
|
|
3726
|
|
|
3727 #ifdef NONSYSTEM_DIR_LIBRARY
|
|
|
3728
|
|
|
3729 DIR *
|
|
|
3730 opendir (CONST char *filename) /* name of directory */
|
|
|
3731 {
|
|
|
3732 DIR *dirp; /* -> malloc'ed storage */
|
|
|
3733 int fd; /* file descriptor for read */
|
|
|
3734 struct stat sbuf; /* result of fstat */
|
|
|
3735
|
|
|
3736 fd = sys_open (filename, 0);
|
|
|
3737 if (fd < 0)
|
|
|
3738 return 0;
|
|
|
3739
|
|
|
3740 if (fstat (fd, &sbuf) < 0
|
|
|
3741 || (sbuf.st_mode & S_IFMT) != S_IFDIR
|
|
|
3742 || (dirp = (DIR *) malloc (sizeof (DIR))) == 0)
|
|
|
3743 {
|
|
|
3744 sys_close (fd);
|
|
|
3745 return 0; /* bad luck today */
|
|
|
3746 }
|
|
|
3747
|
|
|
3748 dirp->dd_fd = fd;
|
|
|
3749 dirp->dd_loc = dirp->dd_size = 0; /* refill needed */
|
|
|
3750
|
|
|
3751 return dirp;
|
|
|
3752 }
|
|
|
3753
|
|
|
3754 void
|
|
|
3755 closedir (DIR *dirp) /* stream from opendir */
|
|
|
3756 {
|
|
|
3757 sys_close (dirp->dd_fd);
|
|
|
3758 xfree (dirp);
|
|
|
3759 }
|
|
|
3760
|
|
|
3761
|
|
|
3762 #ifndef VMS
|
|
|
3763 #define DIRSIZ 14
|
|
|
3764 struct olddir
|
|
|
3765 {
|
|
|
3766 ino_t od_ino; /* inode */
|
|
|
3767 char od_name[DIRSIZ]; /* filename */
|
|
|
3768 };
|
|
|
3769 #endif /* not VMS */
|
|
|
3770
|
|
|
3771 static struct direct dir_static; /* simulated directory contents */
|
|
|
3772
|
|
|
3773 /* ARGUSED */
|
|
|
3774 struct direct *
|
|
|
3775 readdir (DIR *dirp) /* stream from opendir */
|
|
|
3776 {
|
|
|
3777 #ifndef VMS
|
|
|
3778 struct olddir *dp; /* -> directory data */
|
|
|
3779 #else /* VMS */
|
|
|
3780 struct dir$_name *dp; /* -> directory data */
|
|
|
3781 struct dir$_version *dv; /* -> version data */
|
|
|
3782 #endif /* VMS */
|
|
|
3783
|
|
|
3784 for (; ;)
|
|
|
3785 {
|
|
|
3786 if (dirp->dd_loc >= dirp->dd_size)
|
|
|
3787 dirp->dd_loc = dirp->dd_size = 0;
|
|
|
3788
|
|
|
3789 if (dirp->dd_size == 0 /* refill buffer */
|
|
|
3790 && (dirp->dd_size = sys_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0)
|
|
|
3791 return 0;
|
|
|
3792
|
|
|
3793 #ifndef VMS
|
|
|
3794 dp = (struct olddir *) &dirp->dd_buf[dirp->dd_loc];
|
|
|
3795 dirp->dd_loc += sizeof (struct olddir);
|
|
|
3796
|
|
|
3797 if (dp->od_ino != 0) /* not deleted entry */
|
|
|
3798 {
|
|
|
3799 dir_static.d_ino = dp->od_ino;
|
|
|
3800 strncpy (dir_static.d_name, dp->od_name, DIRSIZ);
|
|
|
3801 dir_static.d_name[DIRSIZ] = '\0';
|
|
|
3802 dir_static.d_namlen = strlen (dir_static.d_name);
|
|
|
3803 dir_static.d_reclen = sizeof (struct direct)
|
|
|
3804 - MAXNAMLEN + 3
|
|
|
3805 + dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
3806 return &dir_static; /* -> simulated structure */
|
|
|
3807 }
|
|
|
3808 #else /* VMS */
|
|
|
3809 dp = (struct dir$_name *) dirp->dd_buf;
|
|
|
3810 if (dirp->dd_loc == 0)
|
|
|
3811 dirp->dd_loc = (dp->dir$b_namecount&1) ? dp->dir$b_namecount + 1
|
|
|
3812 : dp->dir$b_namecount;
|
|
|
3813 dv = (struct dir$_version *)&dp->dir$t_name[dirp->dd_loc];
|
|
|
3814 dir_static.d_ino = dv->dir$w_fid_num;
|
|
|
3815 dir_static.d_namlen = dp->dir$b_namecount;
|
|
|
3816 dir_static.d_reclen = sizeof (struct direct)
|
|
|
3817 - MAXNAMLEN + 3
|
|
|
3818 + dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
3819 strncpy (dir_static.d_name, dp->dir$t_name, dp->dir$b_namecount);
|
|
|
3820 dir_static.d_name[dir_static.d_namlen] = '\0';
|
|
|
3821 dirp->dd_loc = dirp->dd_size; /* only one record at a time */
|
|
|
3822 return &dir_static;
|
|
|
3823 #endif /* VMS */
|
|
|
3824 }
|
|
|
3825 }
|
|
|
3826
|
|
|
3827 #ifdef VMS
|
|
|
3828 /* readdirver is just like readdir except it returns all versions of a file
|
|
|
3829 as separate entries. */
|
|
|
3830
|
|
|
3831 /* ARGUSED */
|
|
|
3832 struct direct *
|
|
|
3833 readdirver (DIR *dirp) /* stream from opendir */
|
|
|
3834 {
|
|
|
3835 struct dir$_name *dp; /* -> directory data */
|
|
|
3836 struct dir$_version *dv; /* -> version data */
|
|
|
3837
|
|
|
3838 if (dirp->dd_loc >= dirp->dd_size - sizeof (struct dir$_name))
|
|
|
3839 dirp->dd_loc = dirp->dd_size = 0;
|
|
|
3840
|
|
|
3841 if (dirp->dd_size == 0 /* refill buffer */
|
|
|
3842 && (dirp->dd_size = sys_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0)
|
|
|
3843 return 0;
|
|
|
3844
|
|
|
3845 dp = (struct dir$_name *) dirp->dd_buf;
|
|
|
3846 if (dirp->dd_loc == 0)
|
|
|
3847 dirp->dd_loc = (dp->dir$b_namecount & 1) ? dp->dir$b_namecount + 1
|
|
|
3848 : dp->dir$b_namecount;
|
|
|
3849 dv = (struct dir$_version *) &dp->dir$t_name[dirp->dd_loc];
|
|
|
3850 strncpy (dir_static.d_name, dp->dir$t_name, dp->dir$b_namecount);
|
|
|
3851 sprintf (&dir_static.d_name[dp->dir$b_namecount], ";%d", dv->dir$w_version);
|
|
|
3852 dir_static.d_namlen = strlen (dir_static.d_name);
|
|
|
3853 dir_static.d_ino = dv->dir$w_fid_num;
|
|
|
3854 dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3
|
|
|
3855 + dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
3856 dirp->dd_loc = ((char *) (++dv) - dp->dir$t_name);
|
|
|
3857 return &dir_static;
|
|
|
3858 }
|
|
|
3859
|
|
|
3860 #endif /* VMS */
|
|
|
3861
|
|
|
3862 #endif /* NONSYSTEM_DIR_LIBRARY */
|
|
|
3863
|
|
|
3864
|
|
|
3865 /* mkdir and rmdir functions, for systems which don't have them. */
|
|
|
3866
|
|
|
3867 #ifndef HAVE_MKDIR
|
|
|
3868 /*
|
|
|
3869 * Written by Robert Rother, Mariah Corporation, August 1985.
|
|
|
3870 *
|
|
|
3871 * If you want it, it's yours. All I ask in return is that if you
|
|
|
3872 * figure out how to do this in a Bourne Shell script you send me
|
|
|
3873 * a copy.
|
|
|
3874 * sdcsvax!rmr or rmr@uscd
|
|
|
3875 *
|
|
|
3876 * Severely hacked over by John Gilmore to make a 4.2BSD compatible
|
|
|
3877 * subroutine. 11Mar86; hoptoad!gnu
|
|
|
3878 *
|
|
|
3879 * Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir,
|
|
|
3880 * subroutine didn't return EEXIST. It does now.
|
|
|
3881 */
|
|
|
3882
|
|
|
3883 /*
|
|
|
3884 * Make a directory.
|
|
|
3885 */
|
|
|
3886 #ifdef MKDIR_PROTOTYPE
|
|
|
3887 MKDIR_PROTOTYPE
|
|
|
3888 #else
|
|
|
3889 int
|
|
|
3890 mkdir (CONST char *dpath, int dmode)
|
|
|
3891 #endif
|
|
|
3892 {
|
|
|
3893 int cpid, status, fd;
|
|
|
3894 struct stat statbuf;
|
|
|
3895
|
|
|
3896 if (stat (dpath, &statbuf) == 0)
|
|
|
3897 {
|
|
|
3898 errno = EEXIST; /* Stat worked, so it already exists */
|
|
|
3899 return -1;
|
|
|
3900 }
|
|
|
3901
|
|
|
3902 /* If stat fails for a reason other than non-existence, return error */
|
|
|
3903 if (errno != ENOENT)
|
|
|
3904 return -1;
|
|
|
3905
|
|
|
3906 synch_process_alive = 1;
|
|
|
3907 switch (cpid = fork ())
|
|
|
3908 {
|
|
|
3909
|
|
|
3910 case -1: /* Error in fork() */
|
|
|
3911 return (-1); /* Errno is set already */
|
|
|
3912
|
|
|
3913 case 0: /* Child process */
|
|
|
3914 {
|
|
|
3915 /*
|
|
|
3916 * Cheap hack to set mode of new directory. Since this
|
|
|
3917 * child process is going away anyway, we zap its umask.
|
|
|
3918 * ####, this won't suffice to set SUID, SGID, etc. on this
|
|
|
3919 * directory. Does anybody care?
|
|
|
3920 */
|
|
|
3921 status = umask (0); /* Get current umask */
|
|
|
3922 status = umask (status | (0777 & ~dmode)); /* Set for mkdir */
|
|
|
3923 fd = sys_open ("/dev/null", 2);
|
|
|
3924 if (fd >= 0)
|
|
|
3925 {
|
|
|
3926 dup2 (fd, 0);
|
|
|
3927 dup2 (fd, 1);
|
|
|
3928 dup2 (fd, 2);
|
|
|
3929 }
|
|
|
3930 execl ("/bin/mkdir", "mkdir", dpath, (char *) 0);
|
|
|
3931 _exit (-1); /* Can't exec /bin/mkdir */
|
|
|
3932 }
|
|
|
3933
|
|
|
3934 default: /* Parent process */
|
|
|
3935 wait_for_termination (cpid);
|
|
|
3936 }
|
|
|
3937
|
|
|
3938 if (synch_process_death != 0 || synch_process_retcode != 0)
|
|
|
3939 {
|
|
|
3940 errno = EIO; /* We don't know why, but */
|
|
|
3941 return -1; /* /bin/mkdir failed */
|
|
|
3942 }
|
|
|
3943
|
|
|
3944 return 0;
|
|
|
3945 }
|
|
|
3946 #endif /* not HAVE_MKDIR */
|
|
|
3947
|
|
|
3948 #ifndef HAVE_RMDIR
|
|
|
3949 int
|
|
|
3950 rmdir (CONST char *dpath)
|
|
|
3951 {
|
|
|
3952 int cpid, status, fd;
|
|
|
3953 struct stat statbuf;
|
|
|
3954
|
|
|
3955 if (stat (dpath, &statbuf) != 0)
|
|
|
3956 {
|
|
|
3957 /* Stat just set errno. We don't have to */
|
|
|
3958 return -1;
|
|
|
3959 }
|
|
|
3960
|
|
|
3961 synch_process_alive = 1;
|
|
|
3962 switch (cpid = fork ())
|
|
|
3963 {
|
|
|
3964
|
|
|
3965 case -1: /* Error in fork() */
|
|
|
3966 return (-1); /* Errno is set already */
|
|
|
3967
|
|
|
3968 case 0: /* Child process */
|
|
|
3969 fd = sys_open("/dev/null", 2);
|
|
|
3970 if (fd >= 0)
|
|
|
3971 {
|
|
|
3972 dup2 (fd, 0);
|
|
|
3973 dup2 (fd, 1);
|
|
|
3974 dup2 (fd, 2);
|
|
|
3975 }
|
|
|
3976 execl ("/bin/rmdir", "rmdir", dpath, (char *) 0);
|
|
|
3977 _exit (-1); /* Can't exec /bin/mkdir */
|
|
|
3978
|
|
|
3979 default: /* Parent process */
|
|
|
3980 wait_for_termination (cpid);
|
|
|
3981 }
|
|
|
3982
|
|
|
3983 if (synch_process_death != 0 || synch_process_retcode != 0)
|
|
|
3984 {
|
|
|
3985 errno = EIO; /* We don't know why, but */
|
|
|
3986 return -1; /* /bin/rmdir failed */
|
|
|
3987 }
|
|
|
3988
|
|
|
3989 return 0;
|
|
|
3990 }
|
|
|
3991 #endif /* !HAVE_RMDIR */
|
|
|
3992
|
|
|
3993
|
|
|
3994 /************************************************************************/
|
|
|
3995 /* Misc. SunOS crap */
|
|
|
3996 /************************************************************************/
|
|
|
3997
|
|
|
3998 #ifdef USE_DL_STUBS
|
|
|
3999
|
|
|
4000 /* These are included on Sunos 4.1 when we do not use shared libraries.
|
|
|
4001 X11 libraries may refer to these functions but (we hope) do not
|
|
|
4002 actually call them. */
|
|
|
4003
|
|
|
4004 void *
|
|
|
4005 dlopen (void)
|
|
|
4006 {
|
|
|
4007 return 0;
|
|
|
4008 }
|
|
|
4009
|
|
|
4010 void *
|
|
|
4011 dlsym (void)
|
|
|
4012 {
|
|
|
4013 return 0;
|
|
|
4014 }
|
|
|
4015
|
|
|
4016 int
|
|
|
4017 dlclose (void)
|
|
|
4018 {
|
|
|
4019 return -1;
|
|
|
4020 }
|
|
|
4021
|
|
|
4022 #endif /* USE_DL_STUBS */
|
|
|
4023
|
|
|
4024
|
|
|
4025 /************************************************************************/
|
|
|
4026 /* VMS emulation of system calls */
|
|
|
4027 /************************************************************************/
|
|
|
4028
|
|
|
4029 #ifdef VMS
|
|
|
4030 #include "vms-pwd.h"
|
|
|
4031 #include <acldef.h>
|
|
|
4032 #include <chpdef.h>
|
|
|
4033 #include <jpidef.h>
|
|
|
4034
|
|
|
4035 /* Return as a string the VMS error string pertaining to STATUS.
|
|
|
4036 Reuses the same static buffer each time it is called. */
|
|
|
4037
|
|
|
4038 char *
|
|
|
4039 vmserrstr (int status) /* VMS status code */
|
|
|
4040 {
|
|
|
4041 int bufadr[2];
|
|
|
4042 short len;
|
|
|
4043 static char buf[257];
|
|
|
4044
|
|
|
4045 bufadr[0] = sizeof buf - 1;
|
|
|
4046 bufadr[1] = (int) buf;
|
|
|
4047 if (! (SYS$GETMSG (status, &len, bufadr, 0x1, 0) & 1))
|
|
|
4048 return "untranslatable VMS error status";
|
|
|
4049 buf[len] = '\0';
|
|
|
4050 return buf;
|
|
|
4051 }
|
|
|
4052
|
|
|
4053 #ifdef access
|
|
|
4054 #undef access
|
|
|
4055
|
|
|
4056 /* The following is necessary because 'access' emulation by VMS C (2.0) does
|
|
|
4057 * not work correctly. (It also doesn't work well in version 2.3.)
|
|
|
4058 */
|
|
|
4059
|
|
|
4060 #ifdef VMS4_4
|
|
|
4061
|
|
|
4062 #define DESCRIPTOR(name,string) struct dsc$descriptor_s name = \
|
|
|
4063 { strlen (string), DSC$K_DTYPE_T, DSC$K_CLASS_S, string }
|
|
|
4064
|
|
|
4065 typedef union {
|
|
|
4066 struct {
|
|
|
4067 unsigned short s_buflen;
|
|
|
4068 unsigned short s_code;
|
|
|
4069 char *s_bufadr;
|
|
|
4070 unsigned short *s_retlenadr;
|
|
|
4071 } s;
|
|
|
4072 int end;
|
|
|
4073 } item;
|
|
|
4074 #define buflen s.s_buflen
|
|
|
4075 #define code s.s_code
|
|
|
4076 #define bufadr s.s_bufadr
|
|
|
4077 #define retlenadr s.s_retlenadr
|
|
|
4078
|
|
|
4079 #define R_OK 4 /* test for read permission */
|
|
|
4080 #define W_OK 2 /* test for write permission */
|
|
|
4081 #define X_OK 1 /* test for execute (search) permission */
|
|
|
4082 #define F_OK 0 /* test for presence of file */
|
|
|
4083
|
|
|
4084 int
|
|
|
4085 vms_access (CONST char *path, int mode)
|
|
|
4086 {
|
|
|
4087 static char *user = NULL;
|
|
|
4088 char dir_fn[512];
|
|
|
4089
|
|
|
4090 /* translate possible directory spec into .DIR file name, so brain-dead
|
|
|
4091 * access can treat the directory like a file. */
|
|
|
4092 if (directory_file_name (path, dir_fn))
|
|
|
4093 path = dir_fn;
|
|
|
4094
|
|
|
4095 if (mode == F_OK)
|
|
|
4096 return access (path, mode);
|
|
|
4097 if (user == NULL && (user = (char *) getenv ("USER")) == NULL)
|
|
|
4098 return -1;
|
|
|
4099 {
|
|
|
4100 int stat;
|
|
|
4101 int flags;
|
|
|
4102 int acces;
|
|
|
4103 unsigned short int dummy;
|
|
|
4104 item itemlst[3];
|
|
|
4105 static int constant = ACL$C_FILE;
|
|
|
4106 DESCRIPTOR (path_desc, path);
|
|
|
4107 DESCRIPTOR (user_desc, user);
|
|
|
4108
|
|
|
4109 flags = 0;
|
|
|
4110 acces = 0;
|
|
|
4111 if ((mode & X_OK) && ((stat = access (path, mode)) < 0 || mode == X_OK))
|
|
|
4112 return stat;
|
|
|
4113 if (mode & R_OK)
|
|
|
4114 acces |= CHP$M_READ;
|
|
|
4115 if (mode & W_OK)
|
|
|
4116 acces |= CHP$M_WRITE;
|
|
|
4117 itemlst[0].buflen = sizeof (int);
|
|
|
4118 itemlst[0].code = CHP$_FLAGS;
|
|
|
4119 itemlst[0].bufadr = (char *) &flags;
|
|
|
4120 itemlst[0].retlenadr = &dummy;
|
|
|
4121 itemlst[1].buflen = sizeof (int);
|
|
|
4122 itemlst[1].code = CHP$_ACCESS;
|
|
|
4123 itemlst[1].bufadr = (char *) &acces;
|
|
|
4124 itemlst[1].retlenadr = &dummy;
|
|
|
4125 itemlst[2].end = CHP$_END;
|
|
|
4126 stat = SYS$CHECK_ACCESS (&constant, &path_desc, &user_desc, itemlst);
|
|
|
4127 return stat == SS$_NORMAL ? 0 : -1;
|
|
|
4128 }
|
|
|
4129 }
|
|
|
4130
|
|
|
4131 #else /* not VMS4_4 */
|
|
|
4132
|
|
|
4133 #include <prvdef.h>
|
|
|
4134 #define ACE$M_WRITE 2
|
|
|
4135 #define ACE$C_KEYID 1
|
|
|
4136
|
|
|
4137 static unsigned short vms_memid, vms_grpid;
|
|
|
4138 static unsigned int vms_uic;
|
|
|
4139
|
|
|
4140 /* Called from init_sys_modes, so it happens not very often
|
|
|
4141 but at least each time Emacs is loaded. */
|
|
|
4142 sys_access_reinit (void)
|
|
|
4143 {
|
|
|
4144 vms_uic = 0;
|
|
|
4145 }
|
|
|
4146
|
|
|
4147 int
|
|
|
4148 vms_access (CONST char *filename, int type)
|
|
|
4149 {
|
|
|
4150 struct FAB fab;
|
|
|
4151 struct XABPRO xab;
|
|
|
4152 int status, size, i, typecode, acl_controlled;
|
|
|
4153 unsigned int *aclptr, *aclend, aclbuf[60];
|
|
|
4154 union prvdef prvmask;
|
|
|
4155
|
|
|
4156 /* Get UIC and GRP values for protection checking. */
|
|
|
4157 if (vms_uic == 0)
|
|
|
4158 {
|
|
|
4159 status = LIB$GETJPI (&JPI$_UIC, 0, 0, &vms_uic, 0, 0);
|
|
|
4160 if (! (status & 1))
|
|
|
4161 return -1;
|
|
|
4162 vms_memid = vms_uic & 0xFFFF;
|
|
|
4163 vms_grpid = vms_uic >> 16;
|
|
|
4164 }
|
|
|
4165
|
|
|
4166 if (type != 2) /* not checking write access */
|
|
|
4167 return access (filename, type);
|
|
|
4168
|
|
|
4169 /* Check write protection. */
|
|
|
4170
|
|
|
4171 #define CHECKPRIV(bit) (prvmask.bit)
|
|
|
4172 #define WRITEABLE(field) (! ((xab.xab$w_pro >> field) & XAB$M_NOWRITE))
|
|
|
4173
|
|
|
4174 /* Find privilege bits */
|
|
|
4175 status = SYS$SETPRV (0, 0, 0, prvmask);
|
|
|
4176 if (! (status & 1))
|
|
|
4177 error ("Unable to find privileges: %s", vmserrstr (status));
|
|
|
4178 if (CHECKPRIV (PRV$V_BYPASS))
|
|
|
4179 return 0; /* BYPASS enabled */
|
|
|
4180 fab = cc$rms_fab;
|
|
|
4181 fab.fab$b_fac = FAB$M_GET;
|
|
|
4182 fab.fab$l_fna = filename;
|
|
|
4183 fab.fab$b_fns = strlen (filename);
|
|
|
4184 fab.fab$l_xab = &xab;
|
|
|
4185 xab = cc$rms_xabpro;
|
|
|
4186 xab.xab$l_aclbuf = aclbuf;
|
|
|
4187 xab.xab$w_aclsiz = sizeof (aclbuf);
|
|
|
4188 status = SYS$OPEN (&fab, 0, 0);
|
|
|
4189 if (! (status & 1))
|
|
|
4190 return -1;
|
|
|
4191 SYS$CLOSE (&fab, 0, 0);
|
|
|
4192 /* Check system access */
|
|
|
4193 if (CHECKPRIV (PRV$V_SYSPRV) && WRITEABLE (XAB$V_SYS))
|
|
|
4194 return 0;
|
|
|
4195 /* Check ACL entries, if any */
|
|
|
4196 acl_controlled = 0;
|
|
|
4197 if (xab.xab$w_acllen > 0)
|
|
|
4198 {
|
|
|
4199 aclptr = aclbuf;
|
|
|
4200 aclend = &aclbuf[xab.xab$w_acllen / 4];
|
|
|
4201 while (*aclptr && aclptr < aclend)
|
|
|
4202 {
|
|
|
4203 size = (*aclptr & 0xff) / 4;
|
|
|
4204 typecode = (*aclptr >> 8) & 0xff;
|
|
|
4205 if (typecode == ACE$C_KEYID)
|
|
|
4206 for (i = size - 1; i > 1; i--)
|
|
|
4207 if (aclptr[i] == vms_uic)
|
|
|
4208 {
|
|
|
4209 acl_controlled = 1;
|
|
|
4210 if (aclptr[1] & ACE$M_WRITE)
|
|
|
4211 return 0; /* Write access through ACL */
|
|
|
4212 }
|
|
|
4213 aclptr = &aclptr[size];
|
|
|
4214 }
|
|
|
4215 if (acl_controlled) /* ACL specified, prohibits write access */
|
|
|
4216 return -1;
|
|
|
4217 }
|
|
|
4218 /* No ACL entries specified, check normal protection */
|
|
|
4219 if (WRITEABLE (XAB$V_WLD)) /* World writeable */
|
|
|
4220 return 0;
|
|
|
4221 if (WRITEABLE (XAB$V_GRP) &&
|
|
|
4222 (unsigned short) (xab.xab$l_uic >> 16) == vms_grpid)
|
|
|
4223 return 0; /* Group writeable */
|
|
|
4224 if (WRITEABLE (XAB$V_OWN) &&
|
|
|
4225 (xab.xab$l_uic & 0xFFFF) == vms_memid)
|
|
|
4226 return 0; /* Owner writeable */
|
|
|
4227
|
|
|
4228 return -1; /* Not writeable */
|
|
|
4229 }
|
|
|
4230 #endif /* not VMS4_4 */
|
|
|
4231 #endif /* access */
|
|
|
4232
|
|
|
4233 static char vtbuf[NAM$C_MAXRSS+1];
|
|
|
4234
|
|
|
4235 /* translate a vms file spec to a unix path */
|
|
|
4236 char *
|
|
|
4237 sys_translate_vms (char *vfile)
|
|
|
4238 {
|
|
|
4239 char * p;
|
|
|
4240 char * targ;
|
|
|
4241
|
|
|
4242 if (!vfile)
|
|
|
4243 return 0;
|
|
|
4244
|
|
|
4245 targ = vtbuf;
|
|
|
4246
|
|
|
4247 /* leading device or logical name is a root directory */
|
|
|
4248 if (p = strchr (vfile, ':'))
|
|
|
4249 {
|
|
|
4250 *targ++ = '/';
|
|
|
4251 while (vfile < p)
|
|
|
4252 *targ++ = *vfile++;
|
|
|
4253 vfile++;
|
|
|
4254 *targ++ = '/';
|
|
|
4255 }
|
|
|
4256 p = vfile;
|
|
|
4257 if (*p == '[' || *p == '<')
|
|
|
4258 {
|
|
|
4259 while (*++vfile != *p + 2)
|
|
|
4260 switch (*vfile)
|
|
|
4261 {
|
|
|
4262 case '.':
|
|
|
4263 if (vfile[-1] == *p)
|
|
|
4264 *targ++ = '.';
|
|
|
4265 *targ++ = '/';
|
|
|
4266 break;
|
|
|
4267
|
|
|
4268 case '-':
|
|
|
4269 *targ++ = '.';
|
|
|
4270 *targ++ = '.';
|
|
|
4271 break;
|
|
|
4272
|
|
|
4273 default:
|
|
|
4274 *targ++ = *vfile;
|
|
|
4275 break;
|
|
|
4276 }
|
|
|
4277 vfile++;
|
|
|
4278 *targ++ = '/';
|
|
|
4279 }
|
|
|
4280 while (*vfile)
|
|
|
4281 *targ++ = *vfile++;
|
|
|
4282
|
|
|
4283 return vtbuf;
|
|
|
4284 }
|
|
|
4285
|
|
|
4286 static char utbuf[NAM$C_MAXRSS+1];
|
|
|
4287
|
|
|
4288 /* translate a unix path to a VMS file spec */
|
|
|
4289 char *
|
|
|
4290 sys_translate_unix (char *ufile)
|
|
|
4291 {
|
|
|
4292 int slash_seen = 0;
|
|
|
4293 char *p;
|
|
|
4294 char * targ;
|
|
|
4295
|
|
|
4296 if (!ufile)
|
|
|
4297 return 0;
|
|
|
4298
|
|
|
4299 targ = utbuf;
|
|
|
4300
|
|
|
4301 if (*ufile == '/')
|
|
|
4302 {
|
|
|
4303 ufile++;
|
|
|
4304 }
|
|
|
4305
|
|
|
4306 while (*ufile)
|
|
|
4307 {
|
|
|
4308 switch (*ufile)
|
|
|
4309 {
|
|
|
4310 case '/':
|
|
|
4311 if (slash_seen)
|
|
|
4312 if (strchr (&ufile[1], '/'))
|
|
|
4313 *targ++ = '.';
|
|
|
4314 else
|
|
|
4315 *targ++ = ']';
|
|
|
4316 else
|
|
|
4317 {
|
|
|
4318 *targ++ = ':';
|
|
|
4319 if (strchr (&ufile[1], '/'))
|
|
|
4320 *targ++ = '[';
|
|
|
4321 slash_seen = 1;
|
|
|
4322 }
|
|
|
4323 break;
|
|
|
4324
|
|
|
4325 case '.':
|
|
|
4326 if (strncmp (ufile, "./", 2) == 0)
|
|
|
4327 {
|
|
|
4328 if (!slash_seen)
|
|
|
4329 {
|
|
|
4330 *targ++ = '[';
|
|
|
4331 slash_seen = 1;
|
|
|
4332 }
|
|
|
4333 ufile++; /* skip the dot */
|
|
|
4334 if (strchr (&ufile[1], '/'))
|
|
|
4335 *targ++ = '.';
|
|
|
4336 else
|
|
|
4337 *targ++ = ']';
|
|
|
4338 }
|
|
|
4339 else if (strncmp (ufile, "../", 3) == 0)
|
|
|
4340 {
|
|
|
4341 if (!slash_seen)
|
|
|
4342 {
|
|
|
4343 *targ++ = '[';
|
|
|
4344 slash_seen = 1;
|
|
|
4345 }
|
|
|
4346 *targ++ = '-';
|
|
|
4347 ufile += 2; /* skip the dots */
|
|
|
4348 if (strchr (&ufile[1], '/'))
|
|
|
4349 *targ++ = '.';
|
|
|
4350 else
|
|
|
4351 *targ++ = ']';
|
|
|
4352 }
|
|
|
4353 else
|
|
|
4354 *targ++ = *ufile;
|
|
|
4355 break;
|
|
|
4356
|
|
|
4357 default:
|
|
|
4358 *targ++ = *ufile;
|
|
|
4359 break;
|
|
|
4360 }
|
|
|
4361 ufile++;
|
|
|
4362 }
|
|
|
4363 *targ = '\0';
|
|
|
4364
|
|
|
4365 return utbuf;
|
|
|
4366 }
|
|
|
4367
|
|
|
4368 char *
|
|
|
4369 getwd (char *pathname)
|
|
|
4370 {
|
|
|
4371 char *ptr;
|
|
|
4372 strcpy (pathname, egetenv ("PATH"));
|
|
|
4373
|
|
|
4374 ptr = pathname;
|
|
|
4375 while (*ptr)
|
|
|
4376 {
|
|
|
4377 /* #### This is evil. Smashes (shared) result of egetenv */
|
|
|
4378 *ptr = toupper (* (unsigned char *) ptr);
|
|
|
4379 ptr++;
|
|
|
4380 }
|
|
|
4381 return pathname;
|
|
|
4382 }
|
|
|
4383
|
|
|
4384 int
|
|
|
4385 getppid (void)
|
|
|
4386 {
|
|
|
4387 long item_code = JPI$_OWNER;
|
|
|
4388 unsigned long parent_id;
|
|
|
4389 int status;
|
|
|
4390
|
|
|
4391 if (((status = LIB$GETJPI (&item_code, 0, 0, &parent_id)) & 1) == 0)
|
|
|
4392 {
|
|
|
4393 errno = EVMSERR;
|
|
|
4394 vaxc$errno = status;
|
|
|
4395 return -1;
|
|
|
4396 }
|
|
|
4397 return parent_id;
|
|
|
4398 }
|
|
|
4399
|
|
|
4400 #undef getuid
|
|
|
4401 unsigned int
|
|
|
4402 sys_getuid (void)
|
|
|
4403 {
|
|
|
4404 return (getgid () << 16) | getuid ();
|
|
|
4405 }
|
|
|
4406
|
|
|
4407 int
|
|
|
4408 vms_read (int fildes, CONST void *buf, unsigned int nbyte)
|
|
|
4409 {
|
|
|
4410 return read (fildes, buf, (nbyte < MAXIOSIZE ? nbyte : MAXIOSIZE));
|
|
|
4411 }
|
|
|
4412
|
|
|
4413 #if 0
|
|
|
4414 int
|
|
|
4415 vms_write (int fildes, CONST void *buf, unsigned int nbyte)
|
|
|
4416 {
|
|
|
4417 int nwrote, rtnval = 0;
|
|
|
4418
|
|
|
4419 while (nbyte > MAXIOSIZE && (nwrote = write (fildes, buf, MAXIOSIZE)) > 0)
|
|
|
4420 {
|
|
|
4421 nbyte -= nwrote;
|
|
|
4422 buf += nwrote;
|
|
|
4423 rtnval += nwrote;
|
|
|
4424 }
|
|
|
4425 if (nwrote < 0)
|
|
|
4426 return rtnval ? rtnval : -1;
|
|
|
4427 if ((nwrote = write (fildes, buf, nbyte)) < 0)
|
|
|
4428 return rtnval ? rtnval : -1;
|
|
|
4429 return (rtnval + nwrote);
|
|
|
4430 }
|
|
|
4431 #endif /* 0 */
|
|
|
4432
|
|
|
4433 /*
|
|
|
4434 * VAX/VMS VAX C RTL really loses. It insists that records
|
|
|
4435 * end with a newline (carriage return) character, and if they
|
|
|
4436 * don't it adds one (nice of it isn't it!)
|
|
|
4437 *
|
|
|
4438 * Thus we do this stupidity below.
|
|
|
4439 */
|
|
|
4440
|
|
|
4441 int
|
|
|
4442 vms_write (int fildes, CONST void *buf, unsigned int nbytes)
|
|
|
4443 {
|
|
|
4444 char *p;
|
|
|
4445 char *e;
|
|
|
4446 int sum = 0;
|
|
|
4447 struct stat st;
|
|
|
4448
|
|
|
4449 fstat (fildes, &st);
|
|
|
4450 p = buf;
|
|
|
4451 while (nbytes > 0)
|
|
|
4452 {
|
|
|
4453 int len, retval;
|
|
|
4454
|
|
|
4455 /* Handle fixed-length files with carriage control. */
|
|
|
4456 if (st.st_fab_rfm == FAB$C_FIX
|
|
|
4457 && ((st.st_fab_rat & (FAB$M_FTN | FAB$M_CR)) != 0))
|
|
|
4458 {
|
|
|
4459 len = st.st_fab_mrs;
|
|
|
4460 retval = write (fildes, p, min (len, nbytes));
|
|
|
4461 if (retval != len)
|
|
|
4462 return -1;
|
|
|
4463 retval++; /* This skips the implied carriage control */
|
|
|
4464 }
|
|
|
4465 else
|
|
|
4466 {
|
|
|
4467 e = p + min (MAXIOSIZE, nbytes) - 1;
|
|
|
4468 while (*e != '\n' && e > p) e--;
|
|
|
4469 if (p == e) /* Ok.. so here we add a newline... sigh. */
|
|
|
4470 e = p + min (MAXIOSIZE, nbytes) - 1;
|
|
|
4471 len = e + 1 - p;
|
|
|
4472 retval = write (fildes, p, len);
|
|
|
4473 if (retval != len)
|
|
|
4474 return -1;
|
|
|
4475 }
|
|
|
4476 p += retval;
|
|
|
4477 sum += retval;
|
|
|
4478 nbytes -= retval;
|
|
|
4479 }
|
|
|
4480 return sum;
|
|
|
4481 }
|
|
|
4482
|
|
|
4483 /* Create file NEW copying its attributes from file OLD. If
|
|
|
4484 OLD is 0 or does not exist, create based on the value of
|
|
|
4485 vms_stmlf_recfm. */
|
|
|
4486
|
|
|
4487 /* Protection value the file should ultimately have.
|
|
|
4488 Set by create_copy_attrs, and use by rename_sansversions. */
|
|
|
4489 static unsigned short int vms_fab_final_pro;
|
|
|
4490
|
|
|
4491 int
|
|
|
4492 creat_copy_attrs (char *old, char *new)
|
|
|
4493 {
|
|
|
4494 struct FAB fab = cc$rms_fab;
|
|
|
4495 struct XABPRO xabpro;
|
|
|
4496 char aclbuf[256]; /* Choice of size is arbitrary. See below. */
|
|
|
4497 extern int vms_stmlf_recfm;
|
|
|
4498
|
|
|
4499 if (old)
|
|
|
4500 {
|
|
|
4501 fab.fab$b_fac = FAB$M_GET;
|
|
|
4502 fab.fab$l_fna = old;
|
|
|
4503 fab.fab$b_fns = strlen (old);
|
|
|
4504 fab.fab$l_xab = (char *) &xabpro;
|
|
|
4505 xabpro = cc$rms_xabpro;
|
|
|
4506 xabpro.xab$l_aclbuf = aclbuf;
|
|
|
4507 xabpro.xab$w_aclsiz = sizeof aclbuf;
|
|
|
4508 /* Call $OPEN to fill in the fab & xabpro fields. */
|
|
|
4509 if (SYS$OPEN (&fab, 0, 0) & 1)
|
|
|
4510 {
|
|
|
4511 SYS$CLOSE (&fab, 0, 0);
|
|
|
4512 fab.fab$l_alq = 0; /* zero the allocation quantity */
|
|
|
4513 if (xabpro.xab$w_acllen > 0)
|
|
|
4514 {
|
|
|
4515 if (xabpro.xab$w_acllen > sizeof aclbuf)
|
|
|
4516 /* If the acl buffer was too short, redo open with longer one.
|
|
|
4517 Wouldn't need to do this if there were some system imposed
|
|
|
4518 limit on the size of an ACL, but I can't find any such. */
|
|
|
4519 {
|
|
|
4520 xabpro.xab$l_aclbuf = (char *) alloca (xabpro.xab$w_acllen);
|
|
|
4521 xabpro.xab$w_aclsiz = xabpro.xab$w_acllen;
|
|
|
4522 if (SYS$OPEN (&fab, 0, 0) & 1)
|
|
|
4523 SYS$CLOSE (&fab, 0, 0);
|
|
|
4524 else
|
|
|
4525 old = 0;
|
|
|
4526 }
|
|
|
4527 }
|
|
|
4528 else
|
|
|
4529 xabpro.xab$l_aclbuf = 0;
|
|
|
4530 }
|
|
|
4531 else
|
|
|
4532 old = 0;
|
|
|
4533 }
|
|
|
4534 fab.fab$l_fna = new;
|
|
|
4535 fab.fab$b_fns = strlen (new);
|
|
|
4536 if (!old)
|
|
|
4537 {
|
|
|
4538 fab.fab$l_xab = 0;
|
|
|
4539 fab.fab$b_rfm = vms_stmlf_recfm ? FAB$C_STMLF : FAB$C_VAR;
|
|
|
4540 fab.fab$b_rat = FAB$M_CR;
|
|
|
4541 }
|
|
|
4542
|
|
|
4543 /* Set the file protections such that we will be able to manipulate
|
|
|
4544 this file. Once we are done writing and renaming it, we will set
|
|
|
4545 the protections back. */
|
|
|
4546 if (old)
|
|
|
4547 vms_fab_final_pro = xabpro.xab$w_pro;
|
|
|
4548 else
|
|
|
4549 SYS$SETDFPROT (0, &vms_fab_final_pro);
|
|
|
4550 xabpro.xab$w_pro &= 0xff0f; /* set O:rewd for now. This is set back later. */
|
|
|
4551
|
|
|
4552 /* Create the new file with either default attrs or attrs copied
|
|
|
4553 from old file. */
|
|
|
4554 if (!(SYS$CREATE (&fab, 0, 0) & 1))
|
|
|
4555 return -1;
|
|
|
4556 SYS$CLOSE (&fab, 0, 0);
|
|
|
4557 /* As this is a "replacement" for creat, return a file descriptor
|
|
|
4558 opened for writing. */
|
|
|
4559 return open (new, O_WRONLY);
|
|
|
4560 }
|
|
|
4561
|
|
|
4562 int
|
|
|
4563 vms_creat (CONST char *path, int mode, ...)
|
|
|
4564 {
|
|
|
4565 int rfd; /* related file descriptor */
|
|
|
4566 int fd; /* Our new file descriptor */
|
|
|
4567 int count;
|
|
|
4568 struct stat st_buf;
|
|
|
4569 char rfm[12];
|
|
|
4570 char rat[15];
|
|
|
4571 char mrs[13];
|
|
|
4572 char fsz[13];
|
|
|
4573 extern int vms_stmlf_recfm;
|
|
|
4574
|
|
|
4575 /* #### there was some weird machine-dependent code to determine how many
|
|
|
4576 arguments were passed to this function. This certainly won't work
|
|
|
4577 under ANSI C. */
|
|
|
4578 if (count > 2)
|
|
|
4579 rfd = fix this;
|
|
|
4580 if (count > 2)
|
|
|
4581 {
|
|
|
4582 /* Use information from the related file descriptor to set record
|
|
|
4583 format of the newly created file. */
|
|
|
4584 fstat (rfd, &st_buf);
|
|
|
4585 switch (st_buf.st_fab_rfm)
|
|
|
4586 {
|
|
|
4587 case FAB$C_FIX:
|
|
|
4588 strcpy (rfm, "rfm = fix");
|
|
|
4589 sprintf (mrs, "mrs = %d", st_buf.st_fab_mrs);
|
|
|
4590 strcpy (rat, "rat = ");
|
|
|
4591 if (st_buf.st_fab_rat & FAB$M_CR)
|
|
|
4592 strcat (rat, "cr");
|
|
|
4593 else if (st_buf.st_fab_rat & FAB$M_FTN)
|
|
|
4594 strcat (rat, "ftn");
|
|
|
4595 else if (st_buf.st_fab_rat & FAB$M_PRN)
|
|
|
4596 strcat (rat, "prn");
|
|
|
4597 if (st_buf.st_fab_rat & FAB$M_BLK)
|
|
|
4598 if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN))
|
|
|
4599 strcat (rat, ", blk");
|
|
|
4600 else
|
|
|
4601 strcat (rat, "blk");
|
|
|
4602 return creat (name, 0, rfm, rat, mrs);
|
|
|
4603
|
|
|
4604 case FAB$C_VFC:
|
|
|
4605 strcpy (rfm, "rfm = vfc");
|
|
|
4606 sprintf (fsz, "fsz = %d", st_buf.st_fab_fsz);
|
|
|
4607 strcpy (rat, "rat = ");
|
|
|
4608 if (st_buf.st_fab_rat & FAB$M_CR)
|
|
|
4609 strcat (rat, "cr");
|
|
|
4610 else if (st_buf.st_fab_rat & FAB$M_FTN)
|
|
|
4611 strcat (rat, "ftn");
|
|
|
4612 else if (st_buf.st_fab_rat & FAB$M_PRN)
|
|
|
4613 strcat (rat, "prn");
|
|
|
4614 if (st_buf.st_fab_rat & FAB$M_BLK)
|
|
|
4615 if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN))
|
|
|
4616 strcat (rat, ", blk");
|
|
|
4617 else
|
|
|
4618 strcat (rat, "blk");
|
|
|
4619 return creat (name, 0, rfm, rat, fsz);
|
|
|
4620
|
|
|
4621 case FAB$C_STM:
|
|
|
4622 strcpy (rfm, "rfm = stm");
|
|
|
4623 break;
|
|
|
4624
|
|
|
4625 case FAB$C_STMCR:
|
|
|
4626 strcpy (rfm, "rfm = stmcr");
|
|
|
4627 break;
|
|
|
4628
|
|
|
4629 case FAB$C_STMLF:
|
|
|
4630 strcpy (rfm, "rfm = stmlf");
|
|
|
4631 break;
|
|
|
4632
|
|
|
4633 case FAB$C_UDF:
|
|
|
4634 strcpy (rfm, "rfm = udf");
|
|
|
4635 break;
|
|
|
4636
|
|
|
4637 case FAB$C_VAR:
|
|
|
4638 strcpy (rfm, "rfm = var");
|
|
|
4639 break;
|
|
|
4640 }
|
|
|
4641 strcpy (rat, "rat = ");
|
|
|
4642 if (st_buf.st_fab_rat & FAB$M_CR)
|
|
|
4643 strcat (rat, "cr");
|
|
|
4644 else if (st_buf.st_fab_rat & FAB$M_FTN)
|
|
|
4645 strcat (rat, "ftn");
|
|
|
4646 else if (st_buf.st_fab_rat & FAB$M_PRN)
|
|
|
4647 strcat (rat, "prn");
|
|
|
4648 if (st_buf.st_fab_rat & FAB$M_BLK)
|
|
|
4649 if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN))
|
|
|
4650 strcat (rat, ", blk");
|
|
|
4651 else
|
|
|
4652 strcat (rat, "blk");
|
|
|
4653 }
|
|
|
4654 else
|
|
|
4655 {
|
|
|
4656 strcpy (rfm, vms_stmlf_recfm ? "rfm = stmlf" : "rfm=var");
|
|
|
4657 strcpy (rat, "rat=cr");
|
|
|
4658 }
|
|
|
4659 /* Until the VAX C RTL fixes the many bugs with modes, always use
|
|
|
4660 mode 0 to get the user's default protection. */
|
|
|
4661 fd = creat (name, 0, rfm, rat);
|
|
|
4662 if (fd < 0 && errno == EEXIST)
|
|
|
4663 {
|
|
|
4664 if (unlink (name) < 0)
|
|
|
4665 report_file_error ("delete", build_string (name));
|
|
|
4666 fd = creat (name, 0, rfm, rat);
|
|
|
4667 }
|
|
|
4668 return fd;
|
|
|
4669 }
|
|
|
4670
|
|
|
4671 /* fwrite to stdout is S L O W. Speed it up by using fputc...*/
|
|
|
4672 int
|
|
|
4673 vms_fwrite (CONST void *ptr, int size, int num, FILE *fp)
|
|
|
4674 {
|
|
|
4675 int tot = num * size;
|
|
|
4676
|
|
|
4677 while (tot--)
|
|
|
4678 fputc (* (CONST char *) ptr++, fp);
|
|
|
4679 return (num);
|
|
|
4680 }
|
|
|
4681
|
|
|
4682 /*
|
|
|
4683 * The VMS C library routine creat actually creates a new version of an
|
|
|
4684 * existing file rather than truncating the old version. There are times
|
|
|
4685 * when this is not the desired behavior, for instance, when writing an
|
|
|
4686 * auto save file (you only want one version), or when you don't have
|
|
|
4687 * write permission in the directory containing the file (but the file
|
|
|
4688 * itself is writable). Hence this routine, which is equivalent to
|
|
|
4689 * "close (creat (fn, 0));" on Unix if fn already exists.
|
|
|
4690 */
|
|
|
4691 int
|
|
|
4692 vms_truncate (char *fn)
|
|
|
4693 {
|
|
|
4694 struct FAB xfab = cc$rms_fab;
|
|
|
4695 struct RAB xrab = cc$rms_rab;
|
|
|
4696 int status;
|
|
|
4697
|
|
|
4698 xfab.fab$l_fop = FAB$M_TEF; /* free allocated but unused blocks on close */
|
|
|
4699 xfab.fab$b_fac = FAB$M_TRN | FAB$M_GET; /* allow truncate and get access */
|
|
|
4700 xfab.fab$b_shr = FAB$M_NIL; /* allow no sharing - file must be locked */
|
|
|
4701 xfab.fab$l_fna = fn;
|
|
|
4702 xfab.fab$b_fns = strlen (fn);
|
|
|
4703 xfab.fab$l_dna = ";0"; /* default to latest version of the file */
|
|
|
4704 xfab.fab$b_dns = 2;
|
|
|
4705 xrab.rab$l_fab = &xfab;
|
|
|
4706
|
|
|
4707 /* This gibberish opens the file, positions to the first record, and
|
|
|
4708 deletes all records from there until the end of file. */
|
|
|
4709 if ((SYS$OPEN (&xfab) & 01) == 01)
|
|
|
4710 {
|
|
|
4711 if ((SYS$CONNECT (&xrab) & 01) == 01 &&
|
|
|
4712 (SYS$FIND (&xrab) & 01) == 01 &&
|
|
|
4713 (SYS$TRUNCATE (&xrab) & 01) == 01)
|
|
|
4714 status = 0;
|
|
|
4715 else
|
|
|
4716 status = -1;
|
|
|
4717 }
|
|
|
4718 else
|
|
|
4719 status = -1;
|
|
|
4720 SYS$CLOSE (&xfab);
|
|
|
4721 return status;
|
|
|
4722 }
|
|
|
4723
|
|
|
4724 /* Define this symbol to actually read SYSUAF.DAT. This requires either
|
|
|
4725 SYSPRV or a readable SYSUAF.DAT. */
|
|
|
4726
|
|
|
4727 #ifdef READ_SYSUAF
|
|
|
4728 /*
|
|
|
4729 * getuaf.c
|
|
|
4730 *
|
|
|
4731 * Routine to read the VMS User Authorization File and return
|
|
|
4732 * a specific user's record.
|
|
|
4733 */
|
|
|
4734
|
|
|
4735 static struct UAF vms_retuaf;
|
|
|
4736
|
|
|
4737 static struct UAF *
|
|
|
4738 get_uaf_name (char *uname)
|
|
|
4739 {
|
|
|
4740 status;
|
|
|
4741 struct FAB uaf_fab;
|
|
|
4742 struct RAB uaf_rab;
|
|
|
4743
|
|
|
4744 uaf_fab = cc$rms_fab;
|
|
|
4745 uaf_rab = cc$rms_rab;
|
|
|
4746 /* initialize fab fields */
|
|
|
4747 uaf_fab.fab$l_fna = "SYS$SYSTEM:SYSUAF.DAT";
|
|
|
4748 uaf_fab.fab$b_fns = 21;
|
|
|
4749 uaf_fab.fab$b_fac = FAB$M_GET;
|
|
|
4750 uaf_fab.fab$b_org = FAB$C_IDX;
|
|
|
4751 uaf_fab.fab$b_shr = FAB$M_GET|FAB$M_PUT|FAB$M_UPD|FAB$M_DEL;
|
|
|
4752 /* initialize rab fields */
|
|
|
4753 uaf_rab.rab$l_fab = &uaf_fab;
|
|
|
4754 /* open the User Authorization File */
|
|
|
4755 status = SYS$OPEN (&uaf_fab);
|
|
|
4756 if (!(status&1))
|
|
|
4757 {
|
|
|
4758 errno = EVMSERR;
|
|
|
4759 vaxc$errno = status;
|
|
|
4760 return 0;
|
|
|
4761 }
|
|
|
4762 status = SYS$CONNECT (&uaf_rab);
|
|
|
4763 if (!(status&1))
|
|
|
4764 {
|
|
|
4765 errno = EVMSERR;
|
|
|
4766 vaxc$errno = status;
|
|
|
4767 return 0;
|
|
|
4768 }
|
|
|
4769 /* read the requested record - index is in uname */
|
|
|
4770 uaf_rab.rab$l_kbf = uname;
|
|
|
4771 uaf_rab.rab$b_ksz = strlen (uname);
|
|
|
4772 uaf_rab.rab$b_rac = RAB$C_KEY;
|
|
|
4773 uaf_rab.rab$l_ubf = (char *)&vms_retuaf;
|
|
|
4774 uaf_rab.rab$w_usz = sizeof vms_retuaf;
|
|
|
4775 status = SYS$GET (&uaf_rab);
|
|
|
4776 if (!(status&1))
|
|
|
4777 {
|
|
|
4778 errno = EVMSERR;
|
|
|
4779 vaxc$errno = status;
|
|
|
4780 return 0;
|
|
|
4781 }
|
|
|
4782 /* close the User Authorization File */
|
|
|
4783 status = SYS$DISCONNECT (&uaf_rab);
|
|
|
4784 if (!(status&1))
|
|
|
4785 {
|
|
|
4786 errno = EVMSERR;
|
|
|
4787 vaxc$errno = status;
|
|
|
4788 return 0;
|
|
|
4789 }
|
|
|
4790 status = SYS$CLOSE (&uaf_fab);
|
|
|
4791 if (!(status&1))
|
|
|
4792 {
|
|
|
4793 errno = EVMSERR;
|
|
|
4794 vaxc$errno = status;
|
|
|
4795 return 0;
|
|
|
4796 }
|
|
|
4797 return &vms_retuaf;
|
|
|
4798 }
|
|
|
4799
|
|
|
4800 static struct UAF *
|
|
|
4801 get_uaf_uic (unsigned long uic)
|
|
|
4802 {
|
|
|
4803 status;
|
|
|
4804 struct FAB uaf_fab;
|
|
|
4805 struct RAB uaf_rab;
|
|
|
4806
|
|
|
4807 uaf_fab = cc$rms_fab;
|
|
|
4808 uaf_rab = cc$rms_rab;
|
|
|
4809 /* initialize fab fields */
|
|
|
4810 uaf_fab.fab$l_fna = "SYS$SYSTEM:SYSUAF.DAT";
|
|
|
4811 uaf_fab.fab$b_fns = 21;
|
|
|
4812 uaf_fab.fab$b_fac = FAB$M_GET;
|
|
|
4813 uaf_fab.fab$b_org = FAB$C_IDX;
|
|
|
4814 uaf_fab.fab$b_shr = FAB$M_GET|FAB$M_PUT|FAB$M_UPD|FAB$M_DEL;
|
|
|
4815 /* initialize rab fields */
|
|
|
4816 uaf_rab.rab$l_fab = &uaf_fab;
|
|
|
4817 /* open the User Authorization File */
|
|
|
4818 status = SYS$OPEN (&uaf_fab);
|
|
|
4819 if (!(status&1))
|
|
|
4820 {
|
|
|
4821 errno = EVMSERR;
|
|
|
4822 vaxc$errno = status;
|
|
|
4823 return 0;
|
|
|
4824 }
|
|
|
4825 status = SYS$CONNECT (&uaf_rab);
|
|
|
4826 if (!(status&1))
|
|
|
4827 {
|
|
|
4828 errno = EVMSERR;
|
|
|
4829 vaxc$errno = status;
|
|
|
4830 return 0;
|
|
|
4831 }
|
|
|
4832 /* read the requested record - index is in uic */
|
|
|
4833 uaf_rab.rab$b_krf = 1; /* 1st alternate key */
|
|
|
4834 uaf_rab.rab$l_kbf = (char *) &uic;
|
|
|
4835 uaf_rab.rab$b_ksz = sizeof uic;
|
|
|
4836 uaf_rab.rab$b_rac = RAB$C_KEY;
|
|
|
4837 uaf_rab.rab$l_ubf = (char *)&vms_retuaf;
|
|
|
4838 uaf_rab.rab$w_usz = sizeof vms_retuaf;
|
|
|
4839 status = SYS$GET (&uaf_rab);
|
|
|
4840 if (!(status&1))
|
|
|
4841 {
|
|
|
4842 errno = EVMSERR;
|
|
|
4843 vaxc$errno = status;
|
|
|
4844 return 0;
|
|
|
4845 }
|
|
|
4846 /* close the User Authorization File */
|
|
|
4847 status = SYS$DISCONNECT (&uaf_rab);
|
|
|
4848 if (!(status&1))
|
|
|
4849 {
|
|
|
4850 errno = EVMSERR;
|
|
|
4851 vaxc$errno = status;
|
|
|
4852 return 0;
|
|
|
4853 }
|
|
|
4854 status = SYS$CLOSE (&uaf_fab);
|
|
|
4855 if (!(status&1))
|
|
|
4856 {
|
|
|
4857 errno = EVMSERR;
|
|
|
4858 vaxc$errno = status;
|
|
|
4859 return 0;
|
|
|
4860 }
|
|
|
4861 return &vms_retuaf;
|
|
|
4862 }
|
|
|
4863
|
|
|
4864 static struct passwd vms_retpw;
|
|
|
4865
|
|
|
4866 static struct passwd *
|
|
|
4867 cnv_uaf_pw (struct UAF *up)
|
|
|
4868 {
|
|
|
4869 char * ptr;
|
|
|
4870
|
|
|
4871 /* copy these out first because if the username is 32 chars, the next
|
|
|
4872 section will overwrite the first byte of the UIC */
|
|
|
4873 vms_retpw.pw_uid = up->uaf$w_mem;
|
|
|
4874 vms_retpw.pw_gid = up->uaf$w_grp;
|
|
|
4875
|
|
|
4876 /* I suppose this is not the best sytle, to possibly overwrite one
|
|
|
4877 byte beyond the end of the field, but what the heck... */
|
|
|
4878 ptr = &up->uaf$t_username[UAF$S_USERNAME];
|
|
|
4879 while (ptr[-1] == ' ')
|
|
|
4880 ptr--;
|
|
|
4881 *ptr = '\0';
|
|
|
4882 strcpy (vms_retpw.pw_name, up->uaf$t_username);
|
|
|
4883
|
|
|
4884 /* the rest of these are counted ascii strings */
|
|
|
4885 strncpy (vms_retpw.pw_gecos, &up->uaf$t_owner[1], up->uaf$t_owner[0]);
|
|
|
4886 vms_retpw.pw_gecos[up->uaf$t_owner[0]] = '\0';
|
|
|
4887 strncpy (vms_retpw.pw_dir, &up->uaf$t_defdev[1], up->uaf$t_defdev[0]);
|
|
|
4888 vms_retpw.pw_dir[up->uaf$t_defdev[0]] = '\0';
|
|
|
4889 strncat (vms_retpw.pw_dir, &up->uaf$t_defdir[1], up->uaf$t_defdir[0]);
|
|
|
4890 vms_retpw.pw_dir[up->uaf$t_defdev[0] + up->uaf$t_defdir[0]] = '\0';
|
|
|
4891 strncpy (vms_retpw.pw_shell, &up->uaf$t_defcli[1], up->uaf$t_defcli[0]);
|
|
|
4892 vms_retpw.pw_shell[up->uaf$t_defcli[0]] = '\0';
|
|
|
4893
|
|
|
4894 return &vms_retpw;
|
|
|
4895 }
|
|
|
4896 #else /* not READ_SYSUAF */
|
|
|
4897 static struct passwd vms_retpw;
|
|
|
4898 #endif /* not READ_SYSUAF */
|
|
|
4899
|
|
|
4900 struct passwd *
|
|
|
4901 getpwnam (char *name)
|
|
|
4902 {
|
|
|
4903 #ifdef READ_SYSUAF
|
|
|
4904 struct UAF *up;
|
|
|
4905 #else
|
|
|
4906 char * user;
|
|
|
4907 char * dir;
|
|
|
4908 unsigned char * full;
|
|
|
4909 #endif /* READ_SYSUAF */
|
|
|
4910 char *ptr = name;
|
|
|
4911
|
|
|
4912 while (*ptr)
|
|
|
4913 {
|
|
|
4914 *ptr = toupper (* (unsigned char *) ptr);
|
|
|
4915 ptr++;
|
|
|
4916 }
|
|
|
4917 #ifdef READ_SYSUAF
|
|
|
4918 if (!(up = get_uaf_name (name)))
|
|
|
4919 return 0;
|
|
|
4920 return cnv_uaf_pw (up);
|
|
|
4921 #else
|
|
|
4922 if (strcmp (name, getenv ("USER")) == 0)
|
|
|
4923 {
|
|
|
4924 vms_retpw.pw_uid = getuid ();
|
|
|
4925 vms_retpw.pw_gid = getgid ();
|
|
|
4926 strcpy (vms_retpw.pw_name, name);
|
|
|
4927 if (full = egetenv ("FULLNAME"))
|
|
|
4928 strcpy (vms_retpw.pw_gecos, full);
|
|
|
4929 else
|
|
|
4930 *vms_retpw.pw_gecos = '\0';
|
|
|
4931 strcpy (vms_retpw.pw_dir, egetenv ("HOME"));
|
|
|
4932 *vms_retpw.pw_shell = '\0';
|
|
|
4933 return &vms_retpw;
|
|
|
4934 }
|
|
|
4935 else
|
|
|
4936 return 0;
|
|
|
4937 #endif /* not READ_SYSUAF */
|
|
|
4938 }
|
|
|
4939
|
|
|
4940 struct passwd *
|
|
|
4941 getpwuid (unsigned long uid)
|
|
|
4942 {
|
|
|
4943 #ifdef READ_SYSUAF
|
|
|
4944 struct UAF * up;
|
|
|
4945
|
|
|
4946 if (!(up = get_uaf_uic (uid)))
|
|
|
4947 return 0;
|
|
|
4948 return cnv_uaf_pw (up);
|
|
|
4949 #else
|
|
|
4950 if (uid == sys_getuid ())
|
|
|
4951 return getpwnam (egetenv ("USER"));
|
|
|
4952 else
|
|
|
4953 return 0;
|
|
|
4954 #endif /* not READ_SYSUAF */
|
|
|
4955 }
|
|
|
4956
|
|
|
4957 /* return total address space available to the current process. This is
|
|
|
4958 the sum of the current p0 size, p1 size and free page table entries
|
|
|
4959 available. */
|
|
|
4960 int
|
|
|
4961 vlimit (void)
|
|
|
4962 {
|
|
|
4963 int item_code;
|
|
|
4964 unsigned long free_pages;
|
|
|
4965 unsigned long frep0va;
|
|
|
4966 unsigned long frep1va;
|
|
|
4967 status;
|
|
|
4968
|
|
|
4969 item_code = JPI$_FREPTECNT;
|
|
|
4970 if (((status = LIB$GETJPI (&item_code, 0, 0, &free_pages)) & 1) == 0)
|
|
|
4971 {
|
|
|
4972 errno = EVMSERR;
|
|
|
4973 vaxc$errno = status;
|
|
|
4974 return -1;
|
|
|
4975 }
|
|
|
4976 free_pages *= 512;
|
|
|
4977
|
|
|
4978 item_code = JPI$_FREP0VA;
|
|
|
4979 if (((status = LIB$GETJPI (&item_code, 0, 0, &frep0va)) & 1) == 0)
|
|
|
4980 {
|
|
|
4981 errno = EVMSERR;
|
|
|
4982 vaxc$errno = status;
|
|
|
4983 return -1;
|
|
|
4984 }
|
|
|
4985 item_code = JPI$_FREP1VA;
|
|
|
4986 if (((status = LIB$GETJPI (&item_code, 0, 0, &frep1va)) & 1) == 0)
|
|
|
4987 {
|
|
|
4988 errno = EVMSERR;
|
|
|
4989 vaxc$errno = status;
|
|
|
4990 return -1;
|
|
|
4991 }
|
|
|
4992
|
|
|
4993 return free_pages + frep0va + (0x7fffffff - frep1va);
|
|
|
4994 }
|
|
|
4995
|
|
|
4996 int
|
|
|
4997 define_logical_name (char *varname, char *string)
|
|
|
4998 {
|
|
|
4999 struct dsc$descriptor_s strdsc =
|
|
|
5000 {strlen (string), DSC$K_DTYPE_T, DSC$K_CLASS_S, string};
|
|
|
5001 struct dsc$descriptor_s envdsc =
|
|
|
5002 {strlen (varname), DSC$K_DTYPE_T, DSC$K_CLASS_S, varname};
|
|
|
5003 struct dsc$descriptor_s lnmdsc =
|
|
|
5004 {7, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$JOB"};
|
|
|
5005
|
|
|
5006 return LIB$SET_LOGICAL (&envdsc, &strdsc, &lnmdsc, 0, 0);
|
|
|
5007 }
|
|
|
5008
|
|
|
5009 int
|
|
|
5010 delete_logical_name (char *varname)
|
|
|
5011 {
|
|
|
5012 struct dsc$descriptor_s envdsc =
|
|
|
5013 {strlen (varname), DSC$K_DTYPE_T, DSC$K_CLASS_S, varname};
|
|
|
5014 struct dsc$descriptor_s lnmdsc =
|
|
|
5015 {7, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$JOB"};
|
|
|
5016
|
|
|
5017 return LIB$DELETE_LOGICAL (&envdsc, &lnmdsc);
|
|
|
5018 }
|
|
|
5019
|
|
|
5020 execvp (void)
|
|
|
5021 {
|
|
|
5022 error ("execvp system call not implemented");
|
|
|
5023 }
|
|
|
5024
|
|
|
5025 int
|
|
|
5026 rename (char *from, char *to)
|
|
|
5027 {
|
|
|
5028 int status;
|
|
|
5029 struct FAB from_fab = cc$rms_fab, to_fab = cc$rms_fab;
|
|
|
5030 struct NAM from_nam = cc$rms_nam, to_nam = cc$rms_nam;
|
|
|
5031 char from_esn[NAM$C_MAXRSS];
|
|
|
5032 char to_esn[NAM$C_MAXRSS];
|
|
|
5033
|
|
|
5034 from_fab.fab$l_fna = from;
|
|
|
5035 from_fab.fab$b_fns = strlen (from);
|
|
|
5036 from_fab.fab$l_nam = &from_nam;
|
|
|
5037 from_fab.fab$l_fop = FAB$M_NAM;
|
|
|
5038
|
|
|
5039 from_nam.nam$l_esa = from_esn;
|
|
|
5040 from_nam.nam$b_ess = sizeof from_esn;
|
|
|
5041
|
|
|
5042 to_fab.fab$l_fna = to;
|
|
|
5043 to_fab.fab$b_fns = strlen (to);
|
|
|
5044 to_fab.fab$l_nam = &to_nam;
|
|
|
5045 to_fab.fab$l_fop = FAB$M_NAM;
|
|
|
5046
|
|
|
5047 to_nam.nam$l_esa = to_esn;
|
|
|
5048 to_nam.nam$b_ess = sizeof to_esn;
|
|
|
5049
|
|
|
5050 status = SYS$RENAME (&from_fab, 0, 0, &to_fab);
|
|
|
5051
|
|
|
5052 if (status & 1)
|
|
|
5053 return 0;
|
|
|
5054 else
|
|
|
5055 {
|
|
|
5056 if (status == RMS$_DEV)
|
|
|
5057 errno = EXDEV;
|
|
|
5058 else
|
|
|
5059 errno = EVMSERR;
|
|
|
5060 vaxc$errno = status;
|
|
|
5061 return -1;
|
|
|
5062 }
|
|
|
5063 }
|
|
|
5064
|
|
|
5065 /* This function renames a file like `rename', but it strips
|
|
|
5066 the version number from the "to" filename, such that the "to" file is
|
|
|
5067 will always be a new version. It also sets the file protection once it is
|
|
|
5068 finished. The protection that we will use is stored in vms_fab_final_pro,
|
|
|
5069 and was set when we did a creat_copy_attrs to create the file that we
|
|
|
5070 are renaming.
|
|
|
5071
|
|
|
5072 We could use the chmod function, but Eunichs uses 3 bits per user category
|
|
|
5073 to describe the protection, and VMS uses 4 (write and delete are separate
|
|
|
5074 bits). To maintain portability, the VMS implementation of `chmod' wires
|
|
|
5075 the W and D bits together. */
|
|
|
5076
|
|
|
5077
|
|
|
5078 static char vms_file_written[NAM$C_MAXRSS];
|
|
|
5079
|
|
|
5080 int
|
|
|
5081 rename_sans_version (char *from, char *to)
|
|
|
5082 {
|
|
|
5083 short int chan;
|
|
|
5084 int stat;
|
|
|
5085 short int iosb[4];
|
|
|
5086 int status;
|
|
|
5087 struct fibdef fib;
|
|
|
5088 struct FAB to_fab = cc$rms_fab;
|
|
|
5089 struct NAM to_nam = cc$rms_nam;
|
|
|
5090 struct dsc$descriptor fib_d ={sizeof (fib),0,0,(char*) &fib};
|
|
|
5091 struct dsc$descriptor fib_attr[2]
|
|
|
5092 = {{sizeof (vms_fab_final_pro),ATR$C_FPRO,0,(char*) &vms_fab_final_pro},{0,0,0,0}};
|
|
|
5093 char to_esn[NAM$C_MAXRSS];
|
|
|
5094
|
|
|
5095 $DESCRIPTOR (disk,to_esn);
|
|
|
5096
|
|
|
5097 memset (&fib, 0, sizeof (fib));
|
|
|
5098
|
|
|
5099 to_fab.fab$l_fna = to;
|
|
|
5100 to_fab.fab$b_fns = strlen (to);
|
|
|
5101 to_fab.fab$l_nam = &to_nam;
|
|
|
5102 to_fab.fab$l_fop = FAB$M_NAM;
|
|
|
5103
|
|
|
5104 to_nam.nam$l_esa = to_esn;
|
|
|
5105 to_nam.nam$b_ess = sizeof to_esn;
|
|
|
5106
|
|
|
5107 status = SYS$PARSE (&to_fab, 0, 0); /* figure out the full file name */
|
|
|
5108
|
|
|
5109 if (to_nam.nam$l_fnb && NAM$M_EXP_VER)
|
|
|
5110 *(to_nam.nam$l_ver) = '\0';
|
|
|
5111
|
|
|
5112 stat = rename (from, to_esn);
|
|
|
5113 if (stat < 0)
|
|
|
5114 return stat;
|
|
|
5115
|
|
|
5116 strcpy (vms_file_written, to_esn);
|
|
|
5117
|
|
|
5118 to_fab.fab$l_fna = vms_file_written; /* this points to the versionless name */
|
|
|
5119 to_fab.fab$b_fns = strlen (vms_file_written);
|
|
|
5120
|
|
|
5121 /* Now set the file protection to the correct value */
|
|
|
5122 SYS$OPEN (&to_fab, 0, 0); /* This fills in the nam$w_fid fields */
|
|
|
5123
|
|
|
5124 /* Copy these fields into the fib */
|
|
|
5125 fib.fib$r_fid_overlay.fib$w_fid[0] = to_nam.nam$w_fid[0];
|
|
|
5126 fib.fib$r_fid_overlay.fib$w_fid[1] = to_nam.nam$w_fid[1];
|
|
|
5127 fib.fib$r_fid_overlay.fib$w_fid[2] = to_nam.nam$w_fid[2];
|
|
|
5128
|
|
|
5129 SYS$CLOSE (&to_fab, 0, 0);
|
|
|
5130
|
|
|
5131 stat = SYS$ASSIGN (&disk, &chan, 0, 0); /* open a channel to the disk */
|
|
|
5132 if (!stat)
|
|
|
5133 LIB$SIGNAL (stat);
|
|
|
5134 stat = SYS$QIOW (0, chan, IO$_MODIFY, iosb, 0, 0, &fib_d,
|
|
|
5135 0, 0, 0, &fib_attr, 0);
|
|
|
5136 if (!stat)
|
|
|
5137 LIB$SIGNAL (stat);
|
|
|
5138 stat = SYS$DASSGN (chan);
|
|
|
5139 if (!stat)
|
|
|
5140 LIB$SIGNAL (stat);
|
|
|
5141 strcpy (vms_file_written, to_esn); /* We will write this to the terminal*/
|
|
|
5142 return 0;
|
|
|
5143 }
|
|
|
5144
|
|
|
5145 int
|
|
|
5146 link (char *file, char *new)
|
|
|
5147 {
|
|
|
5148 status;
|
|
|
5149 struct FAB fab;
|
|
|
5150 struct NAM nam;
|
|
|
5151 unsigned short fid[3];
|
|
|
5152 char esa[NAM$C_MAXRSS];
|
|
|
5153
|
|
|
5154 fab = cc$rms_fab;
|
|
|
5155 fab.fab$l_fop = FAB$M_OFP;
|
|
|
5156 fab.fab$l_fna = file;
|
|
|
5157 fab.fab$b_fns = strlen (file);
|
|
|
5158 fab.fab$l_nam = &nam;
|
|
|
5159
|
|
|
5160 nam = cc$rms_nam;
|
|
|
5161 nam.nam$l_esa = esa;
|
|
|
5162 nam.nam$b_ess = NAM$C_MAXRSS;
|
|
|
5163
|
|
|
5164 status = SYS$PARSE (&fab);
|
|
|
5165 if ((status & 1) == 0)
|
|
|
5166 {
|
|
|
5167 errno = EVMSERR;
|
|
|
5168 vaxc$errno = status;
|
|
|
5169 return -1;
|
|
|
5170 }
|
|
|
5171 status = SYS$SEARCH (&fab);
|
|
|
5172 if ((status & 1) == 0)
|
|
|
5173 {
|
|
|
5174 errno = EVMSERR;
|
|
|
5175 vaxc$errno = status;
|
|
|
5176 return -1;
|
|
|
5177 }
|
|
|
5178
|
|
|
5179 fid[0] = nam.nam$w_fid[0];
|
|
|
5180 fid[1] = nam.nam$w_fid[1];
|
|
|
5181 fid[2] = nam.nam$w_fid[2];
|
|
|
5182
|
|
|
5183 fab.fab$l_fna = new;
|
|
|
5184 fab.fab$b_fns = strlen (new);
|
|
|
5185
|
|
|
5186 status = SYS$PARSE (&fab);
|
|
|
5187 if ((status & 1) == 0)
|
|
|
5188 {
|
|
|
5189 errno = EVMSERR;
|
|
|
5190 vaxc$errno = status;
|
|
|
5191 return -1;
|
|
|
5192 }
|
|
|
5193
|
|
|
5194 nam.nam$w_fid[0] = fid[0];
|
|
|
5195 nam.nam$w_fid[1] = fid[1];
|
|
|
5196 nam.nam$w_fid[2] = fid[2];
|
|
|
5197
|
|
|
5198 nam.nam$l_esa = nam.nam$l_name;
|
|
|
5199 nam.nam$b_esl = nam.nam$b_name + nam.nam$b_type + nam.nam$b_ver;
|
|
|
5200
|
|
|
5201 status = SYS$ENTER (&fab);
|
|
|
5202 if ((status & 1) == 0)
|
|
|
5203 {
|
|
|
5204 errno = EVMSERR;
|
|
|
5205 vaxc$errno = status;
|
|
|
5206 return -1;
|
|
|
5207 }
|
|
|
5208
|
|
|
5209 return 0;
|
|
|
5210 }
|
|
|
5211
|
|
|
5212 #ifdef getenv
|
|
|
5213 /* If any place else asks for the TERM variable,
|
|
|
5214 allow it to be overridden with the EMACS_TERM variable
|
|
|
5215 before attempting to translate the logical name TERM. As a last
|
|
|
5216 resort, ask for VAX C's special idea of the TERM variable. */
|
|
|
5217 #undef getenv
|
|
|
5218 char *
|
|
|
5219 sys_getenv (char *name)
|
|
|
5220 {
|
|
|
5221 char *val;
|
|
|
5222 static char buf[256];
|
|
|
5223 static struct dsc$descriptor_s equiv
|
|
|
5224 = {sizeof (buf), DSC$K_DTYPE_T, DSC$K_CLASS_S, buf};
|
|
|
5225 static struct dsc$descriptor_s d_name
|
|
|
5226 = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
|
|
|
5227 short eqlen;
|
|
|
5228
|
|
|
5229 if (!strcmp (name, "TERM"))
|
|
|
5230 {
|
|
|
5231 val = (char *) getenv ("EMACS_TERM");
|
|
|
5232 if (val)
|
|
|
5233 return val;
|
|
|
5234 }
|
|
|
5235
|
|
|
5236 d_name.dsc$w_length = strlen (name);
|
|
|
5237 d_name.dsc$a_pointer = name;
|
|
|
5238 if (LIB$SYS_TRNLOG (&d_name, &eqlen, &equiv) == 1)
|
|
|
5239 {
|
|
|
5240 char *str = (char *) xmalloc (eqlen + 1);
|
|
|
5241 memcpy (str, buf, eqlen);
|
|
|
5242 str[eqlen] = '\0';
|
|
|
5243 /* This is a storage leak, but a pain to fix. With luck,
|
|
|
5244 no one will ever notice. */
|
|
|
5245 return str;
|
|
|
5246 }
|
|
|
5247 return (char *) getenv (name);
|
|
|
5248 }
|
|
|
5249 #endif /* getenv */
|
|
|
5250
|
|
|
5251 #ifdef abort
|
|
|
5252 /* Since VMS doesn't believe in core dumps, the only way to debug this beast is
|
|
|
5253 to force a call on the debugger from within the image. */
|
|
|
5254 #undef abort
|
|
|
5255 sys_abort (void)
|
|
|
5256 {
|
|
|
5257 reset_all_consoles ();
|
|
|
5258 LIB$SIGNAL (SS$_DEBUG);
|
|
|
5259 }
|
|
|
5260 #endif /* abort */
|
|
|
5261
|
|
|
5262 #if 0 /* Apparently unused */
|
|
|
5263 /* The standard `sleep' routine works some other way
|
|
|
5264 and it stops working if you have ever quit out of it.
|
|
|
5265 This one continues to work. */
|
|
|
5266
|
|
|
5267 void
|
|
|
5268 sys_sleep (int timeval)
|
|
|
5269 {
|
|
|
5270 int time [2];
|
|
|
5271 static int zero = 0;
|
|
|
5272 static int large = -10000000;
|
|
|
5273
|
|
|
5274 LIB$EMUL (&timeval, &large, &zero, time); /* Convert to VMS format */
|
|
|
5275
|
|
|
5276 SYS$CANTIM (1, 0);
|
|
|
5277 if (SYS$SETIMR (vms_timer_ef, time, 0, 1) & 1) /* Set timer */
|
|
|
5278 SYS$WAITFR (vms_timer_ef); /* Wait for timer expiry only */
|
|
|
5279 }
|
|
|
5280 #endif /* 0 */
|
|
|
5281
|
|
|
5282 void
|
|
|
5283 bzero (register char *b, register int length)
|
|
|
5284 {
|
|
|
5285 short zero = 0;
|
|
|
5286 long max_str = 65535;
|
|
|
5287
|
|
|
5288 while (length > max_str) {
|
|
|
5289 (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b);
|
|
|
5290 length -= max_str;
|
|
|
5291 b += max_str;
|
|
|
5292 }
|
|
|
5293 max_str = length;
|
|
|
5294 (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b);
|
|
|
5295 }
|
|
|
5296
|
|
|
5297 /* Saying `void' requires a declaration, above, where bcopy is used
|
|
|
5298 and that declaration causes pain for systems where bcopy is a macro. */
|
|
|
5299 bcopy (register char *b1, register char *b2, register int length)
|
|
|
5300 {
|
|
|
5301 long max_str = 65535;
|
|
|
5302
|
|
|
5303 while (length > max_str) {
|
|
|
5304 (void) LIB$MOVC3 (&max_str, b1, b2);
|
|
|
5305 length -= max_str;
|
|
|
5306 b1 += max_str;
|
|
|
5307 b2 += max_str;
|
|
|
5308 }
|
|
|
5309 max_str = length;
|
|
|
5310 (void) LIB$MOVC3 (&length, b1, b2);
|
|
|
5311 }
|
|
|
5312
|
|
|
5313 int
|
|
|
5314 bcmp (register char *b1, register char *b2, register int length)
|
|
|
5315 /* This could be a macro! */
|
|
|
5316 {
|
|
|
5317 struct dsc$descriptor_s src1 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b1};
|
|
|
5318 struct dsc$descriptor_s src2 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b2};
|
|
|
5319
|
|
|
5320 return STR$COMPARE (&src1, &src2);
|
|
|
5321 }
|
|
|
5322
|
|
|
5323 #endif /* VMS */
|
|
|
5324
|
|
|
5325 #ifndef HAVE_STRCASECMP
|
|
|
5326 /*
|
|
|
5327 * From BSD
|
|
|
5328 */
|
|
|
5329 static unsigned char charmap[] = {
|
|
|
5330 '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
|
|
|
5331 '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
|
|
|
5332 '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
|
|
|
5333 '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
|
|
|
5334 '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
|
|
|
5335 '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
|
|
|
5336 '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
|
|
|
5337 '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
|
|
|
5338 '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
|
|
|
5339 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
|
|
|
5340 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
|
|
|
5341 '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
|
|
|
5342 '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
|
|
|
5343 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
|
|
|
5344 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
|
|
|
5345 '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
|
|
|
5346 '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
|
|
|
5347 '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
|
|
|
5348 '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
|
|
|
5349 '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
|
|
|
5350 '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
|
|
|
5351 '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
|
|
|
5352 '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
|
|
|
5353 '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
|
|
|
5354 '\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307',
|
|
|
5355 '\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317',
|
|
|
5356 '\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
|
|
|
5357 '\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337',
|
|
|
5358 '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
|
|
|
5359 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
|
|
|
5360 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
|
|
|
5361 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
|
|
|
5362 };
|
|
|
5363
|
|
|
5364 int
|
|
|
5365 strcasecmp (char *s1, char *s2)
|
|
|
5366 {
|
|
|
5367 unsigned char *cm = charmap;
|
|
|
5368 unsigned char *us1 = (unsigned char *) s1;
|
|
|
5369 unsigned char *us2 = (unsigned char *)s2;
|
|
|
5370
|
|
|
5371 while (cm[*us1] == cm[*us2++])
|
|
|
5372 if (*us1++ == '\0')
|
|
|
5373 return (0);
|
|
|
5374
|
|
|
5375 return (cm[*us1] - cm[*--us2]);
|
|
|
5376 }
|
|
|
5377 #endif /* !HAVE_STRCASECMP */
|
