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annotate src/s/usg5-4.h @ 5417:dd9541c73e70

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Converted the modules samples to GPLv3 or later.
author Mats Lidell <matsl@xemacs.org>
date Wed, 27 Oct 2010 21:46:49 +0200
parents 308d34e9f07d
children a9094f28f9a9
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023b83f4e54b [xemacs-hg @ 2001-06-10 10:42:16 by ben]
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1 /* Definitions file for XEmacs running on AT&T's System V Release 4
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2 Copyright (C) 1987, 1990 Free Software Foundation, Inc.
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3
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023b83f4e54b [xemacs-hg @ 2001-06-10 10:42:16 by ben]
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software: you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation, either version 3 of the License, or (at your
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9 option) any later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */
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18
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19 /* Synched up with: FSF 19.31. */
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20
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21 /* This file written by James Van Artsdalen of Dell Computer Corporation.
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22 * james@bigtex.cactus.org. Subsequently improved for Dell 2.2 by Eric
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23 * S. Raymond <esr@snark.thyrsus.com>.
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24 */
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25
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26 #define USG /* System III, System V, etc */
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27 #define USG5
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28 #define USG5_4
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29
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30 /* SYSTEM_TYPE should indicate the kind of system you are using.
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31 * It sets the Lisp variable system-type. */
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32
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33 #define SYSTEM_TYPE "usg-unix-v"
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34
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35 /* Letter to use in finding device name of first pty,
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36 * if system supports pty's. 'p' means it is /dev/ptyp0 */
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37
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38 #define FIRST_PTY_LETTER 'z'
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39
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40 /* define MAIL_USE_FLOCK if the mailer uses flock
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41 * to interlock access to /usr/spool/mail/$USER.
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42 * The alternative is that a lock file named
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43 * /usr/spool/mail/$USER.lock. */
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44
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45 /* #define MAIL_USE_FLOCK */
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46
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47 /* The file containing the kernel's symbol table is called /unix. */
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48
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49 #define KERNEL_FILE "/unix"
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50
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51 /* The symbol in the kernel where the load average is found
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52 * is named avenrun. */
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53
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54 #define LDAV_SYMBOL "avenrun"
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55
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56 /* Special hacks needed to make Emacs run on this system. */
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57
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58 /* On USG systems the system calls are interruptible by signals
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59 * that the user program has elected to catch. Thus the system call
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60 * must be retried in these cases. To handle this without massive
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61 * changes in the source code, we remap the standard system call names
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62 * to names for our own functions in sysdep.c that do the system call
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63 * with retries. */
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64
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65 #define INTERRUPTIBLE_OPEN
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66 #define INTERRUPTIBLE_IO
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67
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68 /* Compiler bug bites on many systems when default ADDR_CORRECT is used. */
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69
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70 #define ADDR_CORRECT(x) (x)
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71
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72 /* Prevent -lg from being used for debugging. Not implemented? */
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73
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74 #define LIBS_DEBUG
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75
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76 /* Use terminfo instead of termcap. */
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77
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78 #define TERMINFO
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79
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80 /* 5.3 apparently makes close() interruptible */
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81
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82 #define INTERRUPTIBLE_CLOSE
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83
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84 /* Apparently -lg is provided in 5.3 */
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85
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86 #undef LIBS_DEBUG
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87
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88 /* Enable support for shared libraries in unexec. */
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89
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90 #define USG_SHARED_LIBRARIES
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91
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92 #define LIBS_SYSTEM "-lsocket -lnsl -lelf"
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93 #define ORDINARY_LINK
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94 #define LIB_STANDARD
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95
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96 /* there are no -lg libraries on this system, and no libPW */
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97
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98 #define LIBS_DEBUG
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99
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100 /* No <sioctl.h> */
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101
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102 #define NO_SIOCTL_H
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103
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104 #define UNEXEC "unexelf.o"
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105
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106 /* Get <sys/ttold.h> to get struct
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107 * tchars. But get <termio.h> first to make sure ttold.h doesn't
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108 * interfere.
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109 */
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110
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111 #ifndef NOT_C_CODE
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112 #include <sys/wait.h>
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113 #endif
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114
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115 #ifdef emacs
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116 #include <sys/filio.h>
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117 #include <termio.h>
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118 #include <sys/ttold.h>
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119 #include <sys/stream.h>
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120 #include <sys/termios.h>
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121 #endif
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122
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123 /* This sets the name of the master side of the PTY. */
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124
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125 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
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126
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127 /* This sets the name of the slave side of the PTY. On SysVr4,
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128 grantpt(3) forks a subprocess, so keep sigchld_handler() from
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129 intercepting that death. If any child but grantpt's should die
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130 within, it should be caught after EMACS_UNBLOCK_SIGNAL. */
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131
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132 /* XEmacs change */
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133 #ifndef NOT_C_CODE
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134 # if !__STDC__ && !defined(STDC_HEADERS)
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135 char *ptsname ();
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136 # endif
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137 #endif
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138
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139 #define PTY_TTY_NAME_SPRINTF \
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140 { \
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141 char *ptyname; \
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142 \
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143 EMACS_BLOCK_SIGCHLD; \
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144 if (grantpt (fd) == -1) \
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145 { close (fd); return -1; } \
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146 EMACS_UNBLOCK_SIGCHLD; \
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147 if (unlockpt (fd) == -1) \
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148 { close (fd); return -1; } \
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149 if (!(ptyname = ptsname (fd))) \
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150 { close (fd); return -1; } \
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151 strncpy (pty_name, ptyname, sizeof (pty_name)); \
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152 pty_name[sizeof (pty_name) - 1] = 0; \
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153 }
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154
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155 /* Push various streams modules onto a PTY channel. */
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156
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157 #define SETUP_SLAVE_PTY \
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158 if (ioctl (xforkin, I_PUSH, "ptem") == -1) \
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159 fatal ("ioctl I_PUSH ptem: errno %d\n", errno); \
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160 if (ioctl (xforkin, I_PUSH, "ldterm") == -1) \
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161 fatal ("ioctl I_PUSH ldterm: errno %d\n", errno); \
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162 if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) \
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163 fatal ("ioctl I_PUSH ttcompat: errno %d\n", errno);
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164
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165 /* Tell x11term.c and keyboard.c we have the system V streams feature. */
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166 #define SYSV_STREAMS
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167 /* On Some SysV System , w3 freeze. If freeze your xemacs , Add below definition */
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168 /* This definition added by Shogo Fujii(shogo@bsd1.kbnes.nec.co.jp) */
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169 #define PROCESS_IO_BLOCKING