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100
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1 /* Utility and Unix shadow routines for XEmacs on Windows NT.
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2 Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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3
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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 2, or (at your option) any
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9 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; see the file COPYING. If not, write to the Free
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18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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19 02111-1307, USA.
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20
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21
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22 Geoff Voelker (voelker@cs.washington.edu) 7-29-94 */
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23
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24 /* Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> */
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209
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25 /* Sync'ed with Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> */
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26
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290
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27 #include <config.h>
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100
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28
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290
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29 #undef signal
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30 #define getwd _getwd
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31 #include "lisp.h"
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32 #undef getwd
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33
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223
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34 #include "systime.h"
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35 #include "syssignal.h"
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239
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36 #include "sysproc.h"
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398
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37 #include "sysfile.h"
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223
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38
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290
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39 #include <ctype.h>
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40 #include <direct.h>
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41 #include <errno.h>
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42 #include <fcntl.h>
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43 #include <io.h>
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100
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44 #include <pwd.h>
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290
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45 #include <signal.h>
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46 #include <string.h>
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47 #include <stdlib.h>
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48 #include <stdio.h>
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100
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49
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50 #include <windows.h>
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223
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51 #include <mmsystem.h>
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100
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52
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53 #include "nt.h"
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54 #include <sys/dir.h>
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55 #include "ntheap.h"
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56
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209
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57
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263
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58 extern Lisp_Object Vmswindows_downcase_file_names;
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59 #if 0
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209
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60 extern Lisp_Object Vwin32_generate_fake_inodes;
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263
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61 #endif
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62 extern Lisp_Object Vmswindows_get_true_file_attributes;
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209
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63
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398
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64 int nt_fake_unix_uid;
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288
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65
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209
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66 static char startup_dir[ MAXPATHLEN ];
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67
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100
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68 /* Get the current working directory. */
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69 char *
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70 getwd (char *dir)
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71 {
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209
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72 #if 0
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100
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73 if (GetCurrentDirectory (MAXPATHLEN, dir) > 0)
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74 return dir;
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75 return NULL;
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209
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76 #else
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77 /* Emacs doesn't actually change directory itself, and we want to
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78 force our real wd to be where emacs.exe is to avoid unnecessary
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79 conflicts when trying to rename or delete directories. */
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80 strcpy (dir, startup_dir);
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81 return dir;
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82 #endif
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100
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83 }
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84
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85 /* Emulate getloadavg. */
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86 int
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87 getloadavg (double loadavg[], int nelem)
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88 {
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89 int i;
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90
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91 /* A faithful emulation is going to have to be saved for a rainy day. */
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92 for (i = 0; i < nelem; i++)
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93 {
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94 loadavg[i] = 0.0;
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95 }
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96 return i;
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97 }
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98
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99 /* Emulate getpwuid, getpwnam and others. */
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100
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101 #define PASSWD_FIELD_SIZE 256
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102
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103 static char the_passwd_name[PASSWD_FIELD_SIZE];
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104 static char the_passwd_passwd[PASSWD_FIELD_SIZE];
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105 static char the_passwd_gecos[PASSWD_FIELD_SIZE];
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106 static char the_passwd_dir[PASSWD_FIELD_SIZE];
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107 static char the_passwd_shell[PASSWD_FIELD_SIZE];
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108
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109 static struct passwd the_passwd =
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110 {
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111 the_passwd_name,
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112 the_passwd_passwd,
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113 0,
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114 0,
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115 0,
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116 the_passwd_gecos,
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117 the_passwd_dir,
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118 the_passwd_shell,
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119 };
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120
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398
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121 uid_t
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404
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122 getuid (void)
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398
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123 {
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124 return nt_fake_unix_uid;
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100
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125 }
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126
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398
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127 uid_t
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404
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128 geteuid (void)
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100
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129 {
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398
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130 return nt_fake_unix_uid;
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100
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131 }
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132
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398
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133 gid_t
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404
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134 getgid (void)
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100
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135 {
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136 return the_passwd.pw_gid;
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137 }
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138
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398
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139 gid_t
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404
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140 getegid (void)
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100
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141 {
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142 return getgid ();
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143 }
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144
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145 struct passwd *
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398
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146 getpwuid (uid_t uid)
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100
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147 {
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398
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148 if (uid == nt_fake_unix_uid)
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149 {
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150 the_passwd.pw_gid = the_passwd.pw_uid = uid;
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151 return &the_passwd;
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152 }
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153 else
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154 return NULL;
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100
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155 }
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156
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157 struct passwd *
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288
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158 getpwnam (const char *name)
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100
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159 {
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160 struct passwd *pw;
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161
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162 pw = getpwuid (getuid ());
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163 if (!pw)
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164 return pw;
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165
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166 if (stricmp (name, pw->pw_name))
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167 return NULL;
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168
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169 return pw;
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170 }
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171
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172 void
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404
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173 init_user_info (void)
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100
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174 {
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398
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175 /* This code is pretty much of ad hoc nature. There is no unix-like
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176 UIDs under Windows NT. There is no concept of root user, because
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177 all security is ACL-based. Instead, let's use a simple variable,
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178 nt-fake-unix-uid, which would allow the user to have a uid of
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179 choice. --kkm, 02/03/2000 */
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180 #if 0
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100
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181 /* Find the user's real name by opening the process token and
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182 looking up the name associated with the user-sid in that token.
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183
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184 Use the relative portion of the identifier authority value from
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185 the user-sid as the user id value (same for group id using the
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186 primary group sid from the process token). */
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187
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188 char user_sid[256], name[256], domain[256];
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189 DWORD length = sizeof (name), dlength = sizeof (domain), trash;
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190 HANDLE token = NULL;
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191 SID_NAME_USE user_type;
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192
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193 if (OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &token)
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194 && GetTokenInformation (token, TokenUser,
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195 (PVOID) user_sid, sizeof (user_sid), &trash)
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196 && LookupAccountSid (NULL, *((PSID *) user_sid), name, &length,
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197 domain, &dlength, &user_type))
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198 {
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199 strcpy (the_passwd.pw_name, name);
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200 /* Determine a reasonable uid value. */
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201 if (stricmp ("administrator", name) == 0)
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202 {
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203 the_passwd.pw_uid = 0;
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204 the_passwd.pw_gid = 0;
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205 }
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206 else
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207 {
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208 SID_IDENTIFIER_AUTHORITY * pSIA;
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209
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210 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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211 /* I believe the relative portion is the last 4 bytes (of 6)
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212 with msb first. */
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213 the_passwd.pw_uid = ((pSIA->Value[2] << 24) +
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214 (pSIA->Value[3] << 16) +
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215 (pSIA->Value[4] << 8) +
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216 (pSIA->Value[5] << 0));
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217 /* restrict to conventional uid range for normal users */
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218 the_passwd.pw_uid = the_passwd.pw_uid % 60001;
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219
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220 /* Get group id */
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221 if (GetTokenInformation (token, TokenPrimaryGroup,
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222 (PVOID) user_sid, sizeof (user_sid), &trash))
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223 {
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224 SID_IDENTIFIER_AUTHORITY * pSIA;
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225
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226 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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227 the_passwd.pw_gid = ((pSIA->Value[2] << 24) +
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228 (pSIA->Value[3] << 16) +
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229 (pSIA->Value[4] << 8) +
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230 (pSIA->Value[5] << 0));
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231 /* I don't know if this is necessary, but for safety... */
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232 the_passwd.pw_gid = the_passwd.pw_gid % 60001;
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233 }
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234 else
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235 the_passwd.pw_gid = the_passwd.pw_uid;
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236 }
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237 }
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238 /* If security calls are not supported (presumably because we
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239 are running under Windows 95), fallback to this. */
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240 else if (GetUserName (name, &length))
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241 {
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242 strcpy (the_passwd.pw_name, name);
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243 if (stricmp ("administrator", name) == 0)
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244 the_passwd.pw_uid = 0;
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245 else
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246 the_passwd.pw_uid = 123;
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247 the_passwd.pw_gid = the_passwd.pw_uid;
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248 }
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249 else
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250 {
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251 strcpy (the_passwd.pw_name, "unknown");
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252 the_passwd.pw_uid = 123;
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253 the_passwd.pw_gid = 123;
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254 }
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255
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398
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256 if (token)
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257 CloseHandle (token);
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258 #else
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259 /* Obtain only logon id here, uid part is moved to getuid */
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260 char name[256];
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261 DWORD length = sizeof (name);
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262 if (GetUserName (name, &length))
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263 strcpy (the_passwd.pw_name, name);
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264 else
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265 strcpy (the_passwd.pw_name, "unknown");
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266 #endif
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267
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100
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268 /* Ensure HOME and SHELL are defined. */
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288
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269 #if 0
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270 /*
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271 * With XEmacs, setting $HOME is deprecated.
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272 */
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100
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273 if (getenv ("HOME") == NULL)
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274 putenv ("HOME=c:/");
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288
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275 #endif
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100
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276 if (getenv ("SHELL") == NULL)
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277 putenv ((GetVersion () & 0x80000000) ? "SHELL=command" : "SHELL=cmd");
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278
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279 /* Set dir and shell from environment variables. */
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400
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280 strcpy (the_passwd.pw_dir, (char *)get_home_directory());
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100
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281 strcpy (the_passwd.pw_shell, getenv ("SHELL"));
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282 }
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283
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284 /* Normalize filename by converting all path separators to
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285 the specified separator. Also conditionally convert upper
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286 case path name components to lower case. */
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287
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288 static void
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400
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289 normalize_filename (char *fp, char path_sep)
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100
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290 {
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291 char sep;
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292 char *elem;
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293
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294 /* Always lower-case drive letters a-z, even if the filesystem
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295 preserves case in filenames.
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296 This is so filenames can be compared by string comparison
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297 functions that are case-sensitive. Even case-preserving filesystems
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298 do not distinguish case in drive letters. */
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299 if (fp[1] == ':' && *fp >= 'A' && *fp <= 'Z')
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300 {
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301 *fp += 'a' - 'A';
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302 fp += 2;
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303 }
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304
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263
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305 if (NILP (Vmswindows_downcase_file_names))
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100
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306 {
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307 while (*fp)
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308 {
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309 if (*fp == '/' || *fp == '\\')
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310 *fp = path_sep;
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311 fp++;
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312 }
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313 return;
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314 }
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315
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316 sep = path_sep; /* convert to this path separator */
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317 elem = fp; /* start of current path element */
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318
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319 do {
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320 if (*fp >= 'a' && *fp <= 'z')
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321 elem = 0; /* don't convert this element */
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322
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323 if (*fp == 0 || *fp == ':')
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324 {
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325 sep = *fp; /* restore current separator (or 0) */
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326 *fp = '/'; /* after conversion of this element */
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327 }
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328
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329 if (*fp == '/' || *fp == '\\')
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330 {
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331 if (elem && elem != fp)
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332 {
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333 *fp = 0; /* temporary end of string */
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334 _strlwr (elem); /* while we convert to lower case */
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335 }
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336 *fp = sep; /* convert (or restore) path separator */
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337 elem = fp + 1; /* next element starts after separator */
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338 sep = path_sep;
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339 }
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340 } while (*fp++);
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341 }
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342
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343 /* Destructively turn backslashes into slashes. */
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344 void
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400
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345 dostounix_filename (char *p)
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100
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346 {
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347 normalize_filename (p, '/');
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348 }
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349
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350 /* Destructively turn slashes into backslashes. */
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351 void
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400
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352 unixtodos_filename (char *p)
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100
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353 {
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354 normalize_filename (p, '\\');
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355 }
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356
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357 /* Remove all CR's that are followed by a LF.
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358 (From msdos.c...probably should figure out a way to share it,
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359 although this code isn't going to ever change.) */
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360 int
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400
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361 crlf_to_lf (int n, unsigned char *buf, unsigned *lf_count)
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100
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362 {
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363 unsigned char *np = buf;
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364 unsigned char *startp = buf;
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365 unsigned char *endp = buf + n;
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366
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367 if (n == 0)
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368 return n;
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369 while (buf < endp - 1)
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370 {
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209
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371 if (*buf == 0x0a)
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372 (*lf_count)++;
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100
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373 if (*buf == 0x0d)
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374 {
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375 if (*(++buf) != 0x0a)
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376 *np++ = 0x0d;
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377 }
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378 else
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379 *np++ = *buf++;
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380 }
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381 if (buf < endp)
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209
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382 {
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383 if (*buf == 0x0a)
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384 (*lf_count)++;
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100
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385 *np++ = *buf++;
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209
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386 }
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100
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387 return np - startp;
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388 }
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389
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209
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390 /* Parse the root part of file name, if present. Return length and
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391 optionally store pointer to char after root. */
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392 static int
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393 parse_root (char * name, char ** pPath)
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394 {
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395 char * start = name;
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396
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397 if (name == NULL)
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398 return 0;
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399
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400 /* find the root name of the volume if given */
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401 if (isalpha (name[0]) && name[1] == ':')
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402 {
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403 /* skip past drive specifier */
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404 name += 2;
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405 if (IS_DIRECTORY_SEP (name[0]))
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406 name++;
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407 }
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408 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
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409 {
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410 int slashes = 2;
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411 name += 2;
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412 do
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413 {
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414 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
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415 break;
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416 name++;
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417 }
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418 while ( *name );
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|
|
419 if (IS_DIRECTORY_SEP (name[0]))
|
|
|
420 name++;
|
|
|
421 }
|
|
|
422
|
|
|
423 if (pPath)
|
|
|
424 *pPath = name;
|
|
|
425
|
|
|
426 return name - start;
|
|
|
427 }
|
|
|
428
|
|
|
429 /* Get long base name for name; name is assumed to be absolute. */
|
|
|
430 static int
|
|
|
431 get_long_basename (char * name, char * buf, int size)
|
|
|
432 {
|
|
|
433 WIN32_FIND_DATA find_data;
|
|
|
434 HANDLE dir_handle;
|
|
|
435 int len = 0;
|
|
|
436 #ifdef PIGSFLY
|
|
|
437 char *p;
|
|
|
438
|
|
|
439 /* If the last component of NAME has a wildcard character,
|
|
|
440 return it as the basename. */
|
|
|
441 p = name + strlen (name);
|
|
|
442 while (*p != '\\' && *p != ':' && p > name) p--;
|
|
|
443 if (p > name) p++;
|
|
|
444 if (strchr (p, '*') || strchr (p, '?'))
|
|
|
445 {
|
|
|
446 if ((len = strlen (p)) < size)
|
|
|
447 memcpy (buf, p, len + 1);
|
|
|
448 else
|
|
|
449 len = 0;
|
|
|
450 return len;
|
|
|
451 }
|
|
|
452 #endif
|
|
|
453
|
|
|
454 dir_handle = FindFirstFile (name, &find_data);
|
|
|
455 if (dir_handle != INVALID_HANDLE_VALUE)
|
|
|
456 {
|
|
|
457 if ((len = strlen (find_data.cFileName)) < size)
|
|
|
458 memcpy (buf, find_data.cFileName, len + 1);
|
|
|
459 else
|
|
|
460 len = 0;
|
|
|
461 FindClose (dir_handle);
|
|
|
462 }
|
|
|
463 return len;
|
|
|
464 }
|
|
|
465
|
|
|
466 /* Get long name for file, if possible (assumed to be absolute). */
|
|
|
467 BOOL
|
|
|
468 win32_get_long_filename (char * name, char * buf, int size)
|
|
|
469 {
|
|
|
470 char * o = buf;
|
|
|
471 char * p;
|
|
|
472 char * q;
|
|
|
473 char full[ MAX_PATH ];
|
|
|
474 int len;
|
|
|
475
|
|
|
476 len = strlen (name);
|
|
|
477 if (len >= MAX_PATH)
|
|
|
478 return FALSE;
|
|
|
479
|
|
|
480 /* Use local copy for destructive modification. */
|
|
|
481 memcpy (full, name, len+1);
|
|
|
482 unixtodos_filename (full);
|
|
|
483
|
|
|
484 /* Copy root part verbatim. */
|
|
|
485 len = parse_root (full, &p);
|
|
|
486 memcpy (o, full, len);
|
|
|
487 o += len;
|
|
|
488 size -= len;
|
|
|
489
|
|
|
490 do
|
|
|
491 {
|
|
|
492 q = p;
|
|
|
493 p = strchr (q, '\\');
|
|
|
494 if (p) *p = '\0';
|
|
|
495 len = get_long_basename (full, o, size);
|
|
|
496 if (len > 0)
|
|
|
497 {
|
|
|
498 o += len;
|
|
|
499 size -= len;
|
|
|
500 if (p != NULL)
|
|
|
501 {
|
|
|
502 *p++ = '\\';
|
|
|
503 if (size < 2)
|
|
|
504 return FALSE;
|
|
|
505 *o++ = '\\';
|
|
|
506 size--;
|
|
|
507 *o = '\0';
|
|
|
508 }
|
|
|
509 }
|
|
|
510 else
|
|
|
511 return FALSE;
|
|
|
512 }
|
|
|
513 while (p != NULL && *p);
|
|
|
514
|
|
|
515 return TRUE;
|
|
|
516 }
|
|
|
517
|
|
|
518
|
|
100
|
519 /* Routines that are no-ops on NT but are defined to get Emacs to compile. */
|
|
|
520
|
|
239
|
521 #if 0 /* #### We do not need those, do we? -kkm */
|
|
100
|
522 int
|
|
|
523 unrequest_sigio (void)
|
|
|
524 {
|
|
|
525 return 0;
|
|
|
526 }
|
|
|
527
|
|
|
528 int
|
|
|
529 request_sigio (void)
|
|
|
530 {
|
|
|
531 return 0;
|
|
|
532 }
|
|
239
|
533 #endif /* 0 */
|
|
100
|
534
|
|
213
|
535 #define REG_ROOT "SOFTWARE\\GNU\\XEmacs"
|
|
100
|
536
|
|
|
537 LPBYTE
|
|
400
|
538 nt_get_resource (char *key, LPDWORD lpdwtype)
|
|
100
|
539 {
|
|
|
540 LPBYTE lpvalue;
|
|
|
541 HKEY hrootkey = NULL;
|
|
|
542 DWORD cbData;
|
|
|
543
|
|
|
544 /* Check both the current user and the local machine to see if
|
|
|
545 we have any resources. */
|
|
|
546
|
|
|
547 if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
548 {
|
|
|
549 lpvalue = NULL;
|
|
|
550
|
|
|
551 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS
|
|
|
552 && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL
|
|
|
553 && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
554 {
|
|
|
555 return (lpvalue);
|
|
|
556 }
|
|
|
557
|
|
|
558 if (lpvalue) xfree (lpvalue);
|
|
|
559
|
|
|
560 RegCloseKey (hrootkey);
|
|
|
561 }
|
|
|
562
|
|
|
563 if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
564 {
|
|
|
565 lpvalue = NULL;
|
|
|
566
|
|
|
567 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS &&
|
|
|
568 (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL &&
|
|
|
569 RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
570 {
|
|
|
571 return (lpvalue);
|
|
|
572 }
|
|
|
573
|
|
|
574 if (lpvalue) xfree (lpvalue);
|
|
|
575
|
|
|
576 RegCloseKey (hrootkey);
|
|
|
577 }
|
|
|
578
|
|
|
579 return (NULL);
|
|
|
580 }
|
|
|
581
|
|
|
582 void
|
|
404
|
583 init_environment (void)
|
|
100
|
584 {
|
|
|
585 /* Check for environment variables and use registry if they don't exist */
|
|
|
586 {
|
|
|
587 int i;
|
|
|
588 LPBYTE lpval;
|
|
|
589 DWORD dwType;
|
|
|
590
|
|
|
591 static char * env_vars[] =
|
|
|
592 {
|
|
|
593 "HOME",
|
|
|
594 "emacs_dir",
|
|
|
595 "EMACSLOADPATH",
|
|
298
|
596 "EMACSDEBUGPATHS",
|
|
100
|
597 "SHELL",
|
|
209
|
598 "CMDPROXY",
|
|
100
|
599 "EMACSDATA",
|
|
|
600 "EMACSPATH",
|
|
298
|
601 "EMACSPACKAGEPATH",
|
|
100
|
602 "EMACSLOCKDIR",
|
|
298
|
603 "INFOPATH"
|
|
100
|
604 };
|
|
404
|
605 #if defined (HEAP_IN_DATA) && !defined(PDUMP)
|
|
398
|
606 cache_system_info ();
|
|
|
607 #endif
|
|
272
|
608 for (i = 0; i < countof (env_vars); i++)
|
|
100
|
609 {
|
|
|
610 if (!getenv (env_vars[i]) &&
|
|
|
611 (lpval = nt_get_resource (env_vars[i], &dwType)) != NULL)
|
|
|
612 {
|
|
|
613 if (dwType == REG_EXPAND_SZ)
|
|
|
614 {
|
|
|
615 char buf1[500], buf2[500];
|
|
|
616
|
|
|
617 ExpandEnvironmentStrings ((LPSTR) lpval, buf1, 500);
|
|
|
618 _snprintf (buf2, 499, "%s=%s", env_vars[i], buf1);
|
|
|
619 putenv (strdup (buf2));
|
|
|
620 }
|
|
|
621 else if (dwType == REG_SZ)
|
|
|
622 {
|
|
|
623 char buf[500];
|
|
|
624
|
|
|
625 _snprintf (buf, 499, "%s=%s", env_vars[i], lpval);
|
|
|
626 putenv (strdup (buf));
|
|
|
627 }
|
|
|
628
|
|
|
629 xfree (lpval);
|
|
|
630 }
|
|
|
631 }
|
|
|
632 }
|
|
|
633
|
|
209
|
634 /* Another special case: on NT, the PATH variable is actually named
|
|
|
635 "Path" although cmd.exe (perhaps NT itself) arranges for
|
|
|
636 environment variable lookup and setting to be case insensitive.
|
|
|
637 However, Emacs assumes a fully case sensitive environment, so we
|
|
|
638 need to change "Path" to "PATH" to match the expectations of
|
|
|
639 various elisp packages. We do this by the sneaky method of
|
|
|
640 modifying the string in the C runtime environ entry.
|
|
|
641
|
|
|
642 The same applies to COMSPEC. */
|
|
|
643 {
|
|
|
644 char ** envp;
|
|
|
645
|
|
|
646 for (envp = environ; *envp; envp++)
|
|
|
647 if (_strnicmp (*envp, "PATH=", 5) == 0)
|
|
|
648 memcpy (*envp, "PATH=", 5);
|
|
|
649 else if (_strnicmp (*envp, "COMSPEC=", 8) == 0)
|
|
|
650 memcpy (*envp, "COMSPEC=", 8);
|
|
|
651 }
|
|
|
652
|
|
|
653 /* Remember the initial working directory for getwd, then make the
|
|
|
654 real wd be the location of emacs.exe to avoid conflicts when
|
|
|
655 renaming or deleting directories. (We also don't call chdir when
|
|
|
656 running subprocesses for the same reason.) */
|
|
|
657 if (!GetCurrentDirectory (MAXPATHLEN, startup_dir))
|
|
|
658 abort ();
|
|
|
659
|
|
|
660 {
|
|
|
661 char *p;
|
|
|
662 char modname[MAX_PATH];
|
|
|
663
|
|
|
664 if (!GetModuleFileName (NULL, modname, MAX_PATH))
|
|
|
665 abort ();
|
|
|
666 if ((p = strrchr (modname, '\\')) == NULL)
|
|
|
667 abort ();
|
|
|
668 *p = 0;
|
|
|
669
|
|
|
670 SetCurrentDirectory (modname);
|
|
|
671 }
|
|
|
672
|
|
100
|
673 init_user_info ();
|
|
|
674 }
|
|
|
675
|
|
|
676 #ifndef HAVE_X_WINDOWS
|
|
|
677 /* X11R6 on NT provides the single parameter version of this command. */
|
|
|
678
|
|
|
679 #include <sys/timeb.h>
|
|
|
680
|
|
|
681 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */
|
|
|
682 void
|
|
|
683 gettimeofday (struct timeval *tv, struct timezone *tz)
|
|
|
684 {
|
|
|
685 struct _timeb tb;
|
|
|
686 _ftime (&tb);
|
|
|
687
|
|
|
688 tv->tv_sec = tb.time;
|
|
|
689 tv->tv_usec = tb.millitm * 1000L;
|
|
|
690 if (tz)
|
|
|
691 {
|
|
|
692 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
|
|
|
693 tz->tz_dsttime = tb.dstflag; /* type of dst correction */
|
|
|
694 }
|
|
|
695 }
|
|
|
696
|
|
|
697 #endif /* HAVE_X_WINDOWS */
|
|
|
698
|
|
|
699 /* ------------------------------------------------------------------------- */
|
|
|
700 /* IO support and wrapper functions for Win32 API. */
|
|
|
701 /* ------------------------------------------------------------------------- */
|
|
|
702
|
|
|
703 /* Place a wrapper around the MSVC version of ctime. It returns NULL
|
|
|
704 on network directories, so we handle that case here.
|
|
|
705 (Ulrich Leodolter, 1/11/95). */
|
|
|
706 char *
|
|
|
707 sys_ctime (const time_t *t)
|
|
|
708 {
|
|
|
709 char *str = (char *) ctime (t);
|
|
|
710 return (str ? str : "Sun Jan 01 00:00:00 1970");
|
|
|
711 }
|
|
|
712
|
|
|
713 /* Emulate sleep...we could have done this with a define, but that
|
|
|
714 would necessitate including windows.h in the files that used it.
|
|
|
715 This is much easier. */
|
|
|
716
|
|
|
717 #ifndef HAVE_X_WINDOWS
|
|
|
718 void
|
|
|
719 sys_sleep (int seconds)
|
|
|
720 {
|
|
|
721 Sleep (seconds * 1000);
|
|
|
722 }
|
|
|
723 #endif
|
|
|
724
|
|
239
|
725 /* #### This is an evil dirty hack. We must get rid of it.
|
|
|
726 Word "munging" is not in XEmacs lexicon. - kkm */
|
|
|
727
|
|
100
|
728 /* Internal MSVC data and functions for low-level descriptor munging */
|
|
|
729 #if (_MSC_VER == 900)
|
|
|
730 extern char _osfile[];
|
|
|
731 #endif
|
|
|
732 extern int __cdecl _set_osfhnd (int fd, long h);
|
|
|
733 extern int __cdecl _free_osfhnd (int fd);
|
|
|
734
|
|
|
735 /* parallel array of private info on file handles */
|
|
|
736 filedesc fd_info [ MAXDESC ];
|
|
|
737
|
|
209
|
738 typedef struct volume_info_data {
|
|
|
739 struct volume_info_data * next;
|
|
|
740
|
|
|
741 /* time when info was obtained */
|
|
|
742 DWORD timestamp;
|
|
|
743
|
|
|
744 /* actual volume info */
|
|
|
745 char * root_dir;
|
|
100
|
746 DWORD serialnum;
|
|
|
747 DWORD maxcomp;
|
|
|
748 DWORD flags;
|
|
209
|
749 char * name;
|
|
|
750 char * type;
|
|
|
751 } volume_info_data;
|
|
|
752
|
|
|
753 /* Global referenced by various functions. */
|
|
|
754 static volume_info_data volume_info;
|
|
|
755
|
|
|
756 /* Vector to indicate which drives are local and fixed (for which cached
|
|
|
757 data never expires). */
|
|
|
758 static BOOL fixed_drives[26];
|
|
|
759
|
|
|
760 /* Consider cached volume information to be stale if older than 10s,
|
|
|
761 at least for non-local drives. Info for fixed drives is never stale. */
|
|
|
762 #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' )
|
|
|
763 #define VOLINFO_STILL_VALID( root_dir, info ) \
|
|
|
764 ( ( isalpha (root_dir[0]) && \
|
|
|
765 fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \
|
|
|
766 || GetTickCount () - info->timestamp < 10000 )
|
|
|
767
|
|
|
768 /* Cache support functions. */
|
|
|
769
|
|
|
770 /* Simple linked list with linear search is sufficient. */
|
|
|
771 static volume_info_data *volume_cache = NULL;
|
|
|
772
|
|
|
773 static volume_info_data *
|
|
|
774 lookup_volume_info (char * root_dir)
|
|
|
775 {
|
|
|
776 volume_info_data * info;
|
|
|
777
|
|
|
778 for (info = volume_cache; info; info = info->next)
|
|
|
779 if (stricmp (info->root_dir, root_dir) == 0)
|
|
|
780 break;
|
|
|
781 return info;
|
|
|
782 }
|
|
|
783
|
|
|
784 static void
|
|
|
785 add_volume_info (char * root_dir, volume_info_data * info)
|
|
|
786 {
|
|
|
787 info->root_dir = xstrdup (root_dir);
|
|
|
788 info->next = volume_cache;
|
|
|
789 volume_cache = info;
|
|
|
790 }
|
|
|
791
|
|
|
792
|
|
|
793 /* Wrapper for GetVolumeInformation, which uses caching to avoid
|
|
|
794 performance penalty (~2ms on 486 for local drives, 7.5ms for local
|
|
|
795 cdrom drive, ~5-10ms or more for remote drives on LAN). */
|
|
|
796 volume_info_data *
|
|
|
797 GetCachedVolumeInformation (char * root_dir)
|
|
|
798 {
|
|
|
799 volume_info_data * info;
|
|
|
800 char default_root[ MAX_PATH ];
|
|
|
801
|
|
|
802 /* NULL for root_dir means use root from current directory. */
|
|
|
803 if (root_dir == NULL)
|
|
|
804 {
|
|
|
805 if (GetCurrentDirectory (MAX_PATH, default_root) == 0)
|
|
|
806 return NULL;
|
|
|
807 parse_root (default_root, &root_dir);
|
|
|
808 *root_dir = 0;
|
|
|
809 root_dir = default_root;
|
|
|
810 }
|
|
|
811
|
|
|
812 /* Local fixed drives can be cached permanently. Removable drives
|
|
|
813 cannot be cached permanently, since the volume name and serial
|
|
|
814 number (if nothing else) can change. Remote drives should be
|
|
|
815 treated as if they are removable, since there is no sure way to
|
|
|
816 tell whether they are or not. Also, the UNC association of drive
|
|
|
817 letters mapped to remote volumes can be changed at any time (even
|
|
|
818 by other processes) without notice.
|
|
|
819
|
|
|
820 As a compromise, so we can benefit from caching info for remote
|
|
|
821 volumes, we use a simple expiry mechanism to invalidate cache
|
|
|
822 entries that are more than ten seconds old. */
|
|
|
823
|
|
|
824 #if 0
|
|
|
825 /* No point doing this, because WNetGetConnection is even slower than
|
|
|
826 GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW,
|
|
|
827 GetDriveType is about the only call of this type which does not
|
|
|
828 involve network access, and so is extremely quick). */
|
|
|
829
|
|
|
830 /* Map drive letter to UNC if remote. */
|
|
|
831 if ( isalpha( root_dir[0] ) && !fixed[ DRIVE_INDEX( root_dir[0] ) ] )
|
|
|
832 {
|
|
|
833 char remote_name[ 256 ];
|
|
|
834 char drive[3] = { root_dir[0], ':' };
|
|
|
835
|
|
|
836 if (WNetGetConnection (drive, remote_name, sizeof (remote_name))
|
|
|
837 == NO_ERROR)
|
|
|
838 /* do something */ ;
|
|
|
839 }
|
|
|
840 #endif
|
|
|
841
|
|
|
842 info = lookup_volume_info (root_dir);
|
|
|
843
|
|
|
844 if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
|
|
|
845 {
|
|
|
846 char name[ 256 ];
|
|
|
847 DWORD serialnum;
|
|
|
848 DWORD maxcomp;
|
|
|
849 DWORD flags;
|
|
|
850 char type[ 256 ];
|
|
|
851
|
|
|
852 /* Info is not cached, or is stale. */
|
|
|
853 if (!GetVolumeInformation (root_dir,
|
|
|
854 name, sizeof (name),
|
|
|
855 &serialnum,
|
|
|
856 &maxcomp,
|
|
|
857 &flags,
|
|
|
858 type, sizeof (type)))
|
|
|
859 return NULL;
|
|
|
860
|
|
|
861 /* Cache the volume information for future use, overwriting existing
|
|
|
862 entry if present. */
|
|
|
863 if (info == NULL)
|
|
|
864 {
|
|
|
865 info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
|
|
|
866 add_volume_info (root_dir, info);
|
|
|
867 }
|
|
|
868 else
|
|
|
869 {
|
|
|
870 free (info->name);
|
|
|
871 free (info->type);
|
|
|
872 }
|
|
|
873
|
|
|
874 info->name = xstrdup (name);
|
|
|
875 info->serialnum = serialnum;
|
|
|
876 info->maxcomp = maxcomp;
|
|
|
877 info->flags = flags;
|
|
|
878 info->type = xstrdup (type);
|
|
|
879 info->timestamp = GetTickCount ();
|
|
|
880 }
|
|
|
881
|
|
|
882 return info;
|
|
|
883 }
|
|
100
|
884
|
|
|
885 /* Get information on the volume where name is held; set path pointer to
|
|
|
886 start of pathname in name (past UNC header\volume header if present). */
|
|
|
887 int
|
|
|
888 get_volume_info (const char * name, const char ** pPath)
|
|
|
889 {
|
|
|
890 char temp[MAX_PATH];
|
|
|
891 char *rootname = NULL; /* default to current volume */
|
|
209
|
892 volume_info_data * info;
|
|
100
|
893
|
|
|
894 if (name == NULL)
|
|
|
895 return FALSE;
|
|
|
896
|
|
|
897 /* find the root name of the volume if given */
|
|
|
898 if (isalpha (name[0]) && name[1] == ':')
|
|
|
899 {
|
|
|
900 rootname = temp;
|
|
|
901 temp[0] = *name++;
|
|
|
902 temp[1] = *name++;
|
|
|
903 temp[2] = '\\';
|
|
|
904 temp[3] = 0;
|
|
|
905 }
|
|
|
906 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
|
|
|
907 {
|
|
|
908 char *str = temp;
|
|
|
909 int slashes = 4;
|
|
|
910 rootname = temp;
|
|
|
911 do
|
|
|
912 {
|
|
|
913 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
|
|
|
914 break;
|
|
|
915 *str++ = *name++;
|
|
|
916 }
|
|
|
917 while ( *name );
|
|
|
918
|
|
|
919 *str++ = '\\';
|
|
|
920 *str = 0;
|
|
|
921 }
|
|
|
922
|
|
|
923 if (pPath)
|
|
|
924 *pPath = name;
|
|
|
925
|
|
209
|
926 info = GetCachedVolumeInformation (rootname);
|
|
|
927 if (info != NULL)
|
|
100
|
928 {
|
|
209
|
929 /* Set global referenced by other functions. */
|
|
|
930 volume_info = *info;
|
|
100
|
931 return TRUE;
|
|
|
932 }
|
|
|
933 return FALSE;
|
|
|
934 }
|
|
|
935
|
|
|
936 /* Determine if volume is FAT format (ie. only supports short 8.3
|
|
|
937 names); also set path pointer to start of pathname in name. */
|
|
|
938 int
|
|
|
939 is_fat_volume (const char * name, const char ** pPath)
|
|
|
940 {
|
|
|
941 if (get_volume_info (name, pPath))
|
|
|
942 return (volume_info.maxcomp == 12);
|
|
|
943 return FALSE;
|
|
|
944 }
|
|
|
945
|
|
|
946 /* Map filename to a legal 8.3 name if necessary. */
|
|
|
947 const char *
|
|
|
948 map_win32_filename (const char * name, const char ** pPath)
|
|
|
949 {
|
|
|
950 static char shortname[MAX_PATH];
|
|
|
951 char * str = shortname;
|
|
|
952 char c;
|
|
398
|
953 const char * path;
|
|
209
|
954 const char * save_name = name;
|
|
100
|
955
|
|
|
956 if (is_fat_volume (name, &path)) /* truncate to 8.3 */
|
|
|
957 {
|
|
203
|
958 REGISTER int left = 8; /* maximum number of chars in part */
|
|
|
959 REGISTER int extn = 0; /* extension added? */
|
|
|
960 REGISTER int dots = 2; /* maximum number of dots allowed */
|
|
100
|
961
|
|
|
962 while (name < path)
|
|
|
963 *str++ = *name++; /* skip past UNC header */
|
|
|
964
|
|
|
965 while ((c = *name++))
|
|
|
966 {
|
|
|
967 switch ( c )
|
|
|
968 {
|
|
|
969 case '\\':
|
|
|
970 case '/':
|
|
|
971 *str++ = '\\';
|
|
|
972 extn = 0; /* reset extension flags */
|
|
|
973 dots = 2; /* max 2 dots */
|
|
|
974 left = 8; /* max length 8 for main part */
|
|
|
975 break;
|
|
|
976 case ':':
|
|
|
977 *str++ = ':';
|
|
|
978 extn = 0; /* reset extension flags */
|
|
|
979 dots = 2; /* max 2 dots */
|
|
|
980 left = 8; /* max length 8 for main part */
|
|
|
981 break;
|
|
|
982 case '.':
|
|
|
983 if ( dots )
|
|
|
984 {
|
|
|
985 /* Convert path components of the form .xxx to _xxx,
|
|
|
986 but leave . and .. as they are. This allows .emacs
|
|
|
987 to be read as _emacs, for example. */
|
|
|
988
|
|
|
989 if (! *name ||
|
|
|
990 *name == '.' ||
|
|
|
991 IS_DIRECTORY_SEP (*name))
|
|
|
992 {
|
|
|
993 *str++ = '.';
|
|
|
994 dots--;
|
|
|
995 }
|
|
|
996 else
|
|
|
997 {
|
|
|
998 *str++ = '_';
|
|
|
999 left--;
|
|
|
1000 dots = 0;
|
|
|
1001 }
|
|
|
1002 }
|
|
|
1003 else if ( !extn )
|
|
|
1004 {
|
|
|
1005 *str++ = '.';
|
|
|
1006 extn = 1; /* we've got an extension */
|
|
|
1007 left = 3; /* 3 chars in extension */
|
|
|
1008 }
|
|
|
1009 else
|
|
|
1010 {
|
|
|
1011 /* any embedded dots after the first are converted to _ */
|
|
|
1012 *str++ = '_';
|
|
|
1013 }
|
|
|
1014 break;
|
|
|
1015 case '~':
|
|
|
1016 case '#': /* don't lose these, they're important */
|
|
|
1017 if ( ! left )
|
|
|
1018 str[-1] = c; /* replace last character of part */
|
|
|
1019 /* FALLTHRU */
|
|
|
1020 default:
|
|
|
1021 if ( left )
|
|
|
1022 {
|
|
|
1023 *str++ = tolower (c); /* map to lower case (looks nicer) */
|
|
|
1024 left--;
|
|
|
1025 dots = 0; /* started a path component */
|
|
|
1026 }
|
|
|
1027 break;
|
|
|
1028 }
|
|
|
1029 }
|
|
|
1030 *str = '\0';
|
|
|
1031 }
|
|
|
1032 else
|
|
|
1033 {
|
|
|
1034 strcpy (shortname, name);
|
|
|
1035 unixtodos_filename (shortname);
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 if (pPath)
|
|
209
|
1039 *pPath = shortname + (path - save_name);
|
|
100
|
1040
|
|
|
1041 return shortname;
|
|
|
1042 }
|
|
|
1043
|
|
|
1044
|
|
209
|
1045 /* Emulate the Unix directory procedures opendir, closedir,
|
|
|
1046 and readdir. We can't use the procedures supplied in sysdep.c,
|
|
|
1047 so we provide them here. */
|
|
|
1048
|
|
|
1049 struct direct dir_static; /* simulated directory contents */
|
|
|
1050 static HANDLE dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1051 static int dir_is_fat;
|
|
|
1052 static char dir_pathname[MAXPATHLEN+1];
|
|
|
1053 static WIN32_FIND_DATA dir_find_data;
|
|
|
1054
|
|
|
1055 DIR *
|
|
288
|
1056 opendir (const char *filename)
|
|
209
|
1057 {
|
|
|
1058 DIR *dirp;
|
|
|
1059
|
|
|
1060 /* Opening is done by FindFirstFile. However, a read is inherent to
|
|
|
1061 this operation, so we defer the open until read time. */
|
|
|
1062
|
|
398
|
1063 if (!(dirp = xnew_and_zero(DIR)))
|
|
209
|
1064 return NULL;
|
|
|
1065 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1066 return NULL;
|
|
|
1067
|
|
|
1068 dirp->dd_fd = 0;
|
|
|
1069 dirp->dd_loc = 0;
|
|
|
1070 dirp->dd_size = 0;
|
|
|
1071
|
|
|
1072 strncpy (dir_pathname, map_win32_filename (filename, NULL), MAXPATHLEN);
|
|
|
1073 dir_pathname[MAXPATHLEN] = '\0';
|
|
|
1074 dir_is_fat = is_fat_volume (filename, NULL);
|
|
|
1075
|
|
|
1076 return dirp;
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 void
|
|
|
1080 closedir (DIR *dirp)
|
|
|
1081 {
|
|
|
1082 /* If we have a find-handle open, close it. */
|
|
|
1083 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1084 {
|
|
|
1085 FindClose (dir_find_handle);
|
|
|
1086 dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1087 }
|
|
398
|
1088 xfree (dirp);
|
|
209
|
1089 }
|
|
|
1090
|
|
|
1091 struct direct *
|
|
|
1092 readdir (DIR *dirp)
|
|
|
1093 {
|
|
|
1094 /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */
|
|
|
1095 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1096 {
|
|
|
1097 char filename[MAXNAMLEN + 3];
|
|
|
1098 int ln;
|
|
|
1099
|
|
|
1100 strcpy (filename, dir_pathname);
|
|
|
1101 ln = strlen (filename) - 1;
|
|
|
1102 if (!IS_DIRECTORY_SEP (filename[ln]))
|
|
|
1103 strcat (filename, "\\");
|
|
|
1104 strcat (filename, "*");
|
|
|
1105
|
|
|
1106 dir_find_handle = FindFirstFile (filename, &dir_find_data);
|
|
|
1107
|
|
|
1108 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1109 return NULL;
|
|
|
1110 }
|
|
|
1111 else
|
|
|
1112 {
|
|
|
1113 if (!FindNextFile (dir_find_handle, &dir_find_data))
|
|
|
1114 return NULL;
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 /* Emacs never uses this value, so don't bother making it match
|
|
|
1118 value returned by stat(). */
|
|
|
1119 dir_static.d_ino = 1;
|
|
|
1120
|
|
|
1121 dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 +
|
|
|
1122 dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
1123
|
|
|
1124 dir_static.d_namlen = strlen (dir_find_data.cFileName);
|
|
|
1125 strcpy (dir_static.d_name, dir_find_data.cFileName);
|
|
|
1126 if (dir_is_fat)
|
|
|
1127 _strlwr (dir_static.d_name);
|
|
263
|
1128 else if (!NILP (Vmswindows_downcase_file_names))
|
|
209
|
1129 {
|
|
|
1130 REGISTER char *p;
|
|
|
1131 for (p = dir_static.d_name; *p; p++)
|
|
|
1132 if (*p >= 'a' && *p <= 'z')
|
|
|
1133 break;
|
|
|
1134 if (!*p)
|
|
|
1135 _strlwr (dir_static.d_name);
|
|
|
1136 }
|
|
|
1137
|
|
|
1138 return &dir_static;
|
|
|
1139 }
|
|
|
1140
|
|
290
|
1141 #if 0
|
|
|
1142 /* #### Have to check if all that sad story about '95 is true - kkm */
|
|
100
|
1143 int
|
|
|
1144 sys_rename (const char * oldname, const char * newname)
|
|
|
1145 {
|
|
|
1146 char temp[MAX_PATH];
|
|
|
1147 DWORD attr;
|
|
|
1148
|
|
|
1149 /* MoveFile on Win95 doesn't correctly change the short file name
|
|
|
1150 alias in a number of circumstances (it is not easy to predict when
|
|
|
1151 just by looking at oldname and newname, unfortunately). In these
|
|
|
1152 cases, renaming through a temporary name avoids the problem.
|
|
|
1153
|
|
|
1154 A second problem on Win95 is that renaming through a temp name when
|
|
|
1155 newname is uppercase fails (the final long name ends up in
|
|
|
1156 lowercase, although the short alias might be uppercase) UNLESS the
|
|
|
1157 long temp name is not 8.3.
|
|
|
1158
|
|
|
1159 So, on Win95 we always rename through a temp name, and we make sure
|
|
|
1160 the temp name has a long extension to ensure correct renaming. */
|
|
|
1161
|
|
|
1162 strcpy (temp, map_win32_filename (oldname, NULL));
|
|
|
1163
|
|
|
1164 if (GetVersion () & 0x80000000)
|
|
|
1165 {
|
|
|
1166 char * p;
|
|
|
1167
|
|
|
1168 if (p = strrchr (temp, '\\'))
|
|
|
1169 p++;
|
|
|
1170 else
|
|
|
1171 p = temp;
|
|
|
1172 /* Force temp name to require a manufactured 8.3 alias - this
|
|
|
1173 seems to make the second rename work properly. */
|
|
209
|
1174 strcpy (p, "_rename_temp.XXXXXX");
|
|
|
1175 sys_mktemp (temp);
|
|
100
|
1176 if (rename (map_win32_filename (oldname, NULL), temp) < 0)
|
|
|
1177 return -1;
|
|
|
1178 }
|
|
|
1179
|
|
380
|
1180 /* Emulate Unix behavior - newname is deleted if it already exists
|
|
100
|
1181 (at least if it is a file; don't do this for directories).
|
|
|
1182 However, don't do this if we are just changing the case of the file
|
|
|
1183 name - we will end up deleting the file we are trying to rename! */
|
|
|
1184 newname = map_win32_filename (newname, NULL);
|
|
209
|
1185
|
|
|
1186 /* TODO: Use GetInformationByHandle (on NT) to ensure newname and temp
|
|
|
1187 do not refer to the same file, eg. through share aliases. */
|
|
100
|
1188 if (stricmp (newname, temp) != 0
|
|
|
1189 && (attr = GetFileAttributes (newname)) != -1
|
|
|
1190 && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0)
|
|
|
1191 {
|
|
|
1192 _chmod (newname, 0666);
|
|
|
1193 _unlink (newname);
|
|
|
1194 }
|
|
|
1195
|
|
|
1196 return rename (temp, newname);
|
|
|
1197 }
|
|
290
|
1198 #endif /* 0 */
|
|
100
|
1199
|
|
|
1200 static FILETIME utc_base_ft;
|
|
398
|
1201 static int init = 0;
|
|
|
1202
|
|
|
1203 #if 0
|
|
|
1204
|
|
100
|
1205 static long double utc_base;
|
|
|
1206
|
|
263
|
1207 time_t
|
|
100
|
1208 convert_time (FILETIME ft)
|
|
|
1209 {
|
|
|
1210 long double ret;
|
|
|
1211
|
|
|
1212 if (!init)
|
|
|
1213 {
|
|
|
1214 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1215 SYSTEMTIME st;
|
|
|
1216
|
|
|
1217 st.wYear = 1970;
|
|
|
1218 st.wMonth = 1;
|
|
|
1219 st.wDay = 1;
|
|
|
1220 st.wHour = 0;
|
|
|
1221 st.wMinute = 0;
|
|
|
1222 st.wSecond = 0;
|
|
|
1223 st.wMilliseconds = 0;
|
|
|
1224
|
|
|
1225 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1226 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1227 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1228 init = 1;
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 if (CompareFileTime (&ft, &utc_base_ft) < 0)
|
|
|
1232 return 0;
|
|
|
1233
|
|
|
1234 ret = (long double) ft.dwHighDateTime * 4096 * 1024 * 1024 + ft.dwLowDateTime;
|
|
|
1235 ret -= utc_base;
|
|
|
1236 return (time_t) (ret * 1e-7);
|
|
|
1237 }
|
|
398
|
1238 #else
|
|
|
1239
|
|
404
|
1240 #if defined(__MINGW32__) && CYGWIN_VERSION_DLL_MAJOR <= 21
|
|
|
1241 #define LowPart u.LowPart
|
|
|
1242 #define HighPart u.HighPart
|
|
|
1243 #endif
|
|
|
1244
|
|
398
|
1245 static LARGE_INTEGER utc_base_li;
|
|
|
1246
|
|
|
1247 time_t
|
|
|
1248 convert_time (FILETIME uft)
|
|
|
1249 {
|
|
|
1250 time_t ret;
|
|
|
1251 #ifndef MAXLONGLONG
|
|
|
1252 SYSTEMTIME st;
|
|
|
1253 struct tm t;
|
|
|
1254 FILETIME ft;
|
|
|
1255 TIME_ZONE_INFORMATION tzi;
|
|
|
1256 DWORD tzid;
|
|
|
1257 #else
|
|
|
1258 LARGE_INTEGER lft;
|
|
|
1259 #endif
|
|
|
1260
|
|
|
1261 if (!init)
|
|
|
1262 {
|
|
|
1263 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1264 SYSTEMTIME st;
|
|
|
1265
|
|
|
1266 st.wYear = 1970;
|
|
|
1267 st.wMonth = 1;
|
|
|
1268 st.wDay = 1;
|
|
|
1269 st.wHour = 0;
|
|
|
1270 st.wMinute = 0;
|
|
|
1271 st.wSecond = 0;
|
|
|
1272 st.wMilliseconds = 0;
|
|
|
1273
|
|
|
1274 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1275
|
|
|
1276 utc_base_li.LowPart = utc_base_ft.dwLowDateTime;
|
|
|
1277 utc_base_li.HighPart = utc_base_ft.dwHighDateTime;
|
|
|
1278
|
|
|
1279 init = 1;
|
|
|
1280 }
|
|
|
1281
|
|
|
1282 #ifdef MAXLONGLONG
|
|
|
1283
|
|
|
1284 /* On a compiler that supports long integers, do it the easy way */
|
|
|
1285 lft.LowPart = uft.dwLowDateTime;
|
|
|
1286 lft.HighPart = uft.dwHighDateTime;
|
|
|
1287 ret = (time_t) ((lft.QuadPart - utc_base_li.QuadPart) / 10000000);
|
|
|
1288
|
|
|
1289 #else
|
|
|
1290
|
|
|
1291 /* Do it the hard way using mktime. */
|
|
|
1292 FileTimeToLocalFileTime(&uft, &ft);
|
|
|
1293 FileTimeToSystemTime (&ft, &st);
|
|
|
1294 tzid = GetTimeZoneInformation (&tzi);
|
|
|
1295 t.tm_year = st.wYear - 1900;
|
|
|
1296 t.tm_mon = st.wMonth - 1;
|
|
|
1297 t.tm_mday = st.wDay;
|
|
|
1298 t.tm_hour = st.wHour;
|
|
|
1299 t.tm_min = st.wMinute;
|
|
|
1300 t.tm_sec = st.wSecond;
|
|
|
1301 t.tm_isdst = (tzid == TIME_ZONE_ID_DAYLIGHT);
|
|
|
1302 /* st.wMilliseconds not applicable */
|
|
|
1303 ret = mktime(&t);
|
|
|
1304 if (ret == -1)
|
|
|
1305 {
|
|
|
1306 ret = 0;
|
|
|
1307 }
|
|
|
1308
|
|
|
1309 #endif
|
|
|
1310
|
|
|
1311 return ret;
|
|
|
1312 }
|
|
|
1313 #endif
|
|
404
|
1314 #if defined(__MINGW32__) && CYGWIN_VERSION_DLL_MAJOR <= 21
|
|
|
1315 #undef LowPart
|
|
|
1316 #undef HighPart
|
|
|
1317 #endif
|
|
100
|
1318
|
|
|
1319 #if 0
|
|
|
1320 /* in case we ever have need of this */
|
|
|
1321 void
|
|
|
1322 convert_from_time_t (time_t time, FILETIME * pft)
|
|
|
1323 {
|
|
|
1324 long double tmp;
|
|
|
1325
|
|
|
1326 if (!init)
|
|
|
1327 {
|
|
|
1328 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1329 SYSTEMTIME st;
|
|
|
1330
|
|
|
1331 st.wYear = 1970;
|
|
|
1332 st.wMonth = 1;
|
|
|
1333 st.wDay = 1;
|
|
|
1334 st.wHour = 0;
|
|
|
1335 st.wMinute = 0;
|
|
|
1336 st.wSecond = 0;
|
|
|
1337 st.wMilliseconds = 0;
|
|
|
1338
|
|
|
1339 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1340 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1341 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1342 init = 1;
|
|
|
1343 }
|
|
|
1344
|
|
|
1345 /* time in 100ns units since 1-Jan-1601 */
|
|
|
1346 tmp = (long double) time * 1e7 + utc_base;
|
|
|
1347 pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024));
|
|
|
1348 pft->dwLowDateTime = (DWORD) (tmp - pft->dwHighDateTime);
|
|
|
1349 }
|
|
|
1350 #endif
|
|
|
1351
|
|
209
|
1352 #if 0
|
|
|
1353 /* No reason to keep this; faking inode values either by hashing or even
|
|
|
1354 using the file index from GetInformationByHandle, is not perfect and
|
|
|
1355 so by default Emacs doesn't use the inode values on Windows.
|
|
|
1356 Instead, we now determine file-truename correctly (except for
|
|
|
1357 possible drive aliasing etc). */
|
|
|
1358
|
|
|
1359 /* Modified version of "PJW" algorithm (see the "Dragon" compiler book). */
|
|
100
|
1360 static unsigned
|
|
209
|
1361 hashval (const unsigned char * str)
|
|
100
|
1362 {
|
|
|
1363 unsigned h = 0;
|
|
|
1364 while (*str)
|
|
|
1365 {
|
|
|
1366 h = (h << 4) + *str++;
|
|
209
|
1367 h ^= (h >> 28);
|
|
100
|
1368 }
|
|
|
1369 return h;
|
|
|
1370 }
|
|
|
1371
|
|
|
1372 /* Return the hash value of the canonical pathname, excluding the
|
|
|
1373 drive/UNC header, to get a hopefully unique inode number. */
|
|
209
|
1374 static DWORD
|
|
100
|
1375 generate_inode_val (const char * name)
|
|
|
1376 {
|
|
|
1377 char fullname[ MAX_PATH ];
|
|
|
1378 char * p;
|
|
|
1379 unsigned hash;
|
|
|
1380
|
|
209
|
1381 /* Get the truly canonical filename, if it exists. (Note: this
|
|
380
|
1382 doesn't resolve aliasing due to subst commands, or recognize hard
|
|
209
|
1383 links. */
|
|
|
1384 if (!win32_get_long_filename ((char *)name, fullname, MAX_PATH))
|
|
|
1385 abort ();
|
|
|
1386
|
|
|
1387 parse_root (fullname, &p);
|
|
100
|
1388 /* Normal Win32 filesystems are still case insensitive. */
|
|
|
1389 _strlwr (p);
|
|
209
|
1390 return hashval (p);
|
|
100
|
1391 }
|
|
|
1392
|
|
209
|
1393 #endif
|
|
|
1394
|
|
398
|
1395 /* stat has been fixed since MSVC 5.0.
|
|
|
1396 Oh, and do not encapsulater stat for non-MS compilers, too */
|
|
|
1397 /* #### popineau@ese-metz.fr says they still might be broken.
|
|
|
1398 Oh well... Let's add that `1 ||' condition.... --kkm */
|
|
404
|
1399 /* #### aichner@ecf.teradyne.com reported that with the library
|
|
|
1400 provided stat/fstat, (file-exist "d:\\tmp\\") =>> nil,
|
|
|
1401 (file-exist "d:\\tmp") =>> t, when d:\tmp exists. Whenever
|
|
|
1402 we opt to use non-encapsulated stat(), this should serve as
|
|
|
1403 a compatibility test. --kkm */
|
|
|
1404
|
|
398
|
1405 #if 1 || defined(_MSC_VER) && _MSC_VER < 1100
|
|
|
1406
|
|
|
1407 /* Since stat is encapsulated on Windows NT, we need to encapsulate
|
|
|
1408 the equally broken fstat as well. */
|
|
|
1409 int _cdecl
|
|
|
1410 fstat (int handle, struct stat *buffer)
|
|
|
1411 {
|
|
|
1412 int ret;
|
|
|
1413 BY_HANDLE_FILE_INFORMATION lpFileInfo;
|
|
|
1414 /* Initialize values */
|
|
|
1415 buffer->st_mode = 0;
|
|
|
1416 buffer->st_size = 0;
|
|
|
1417 buffer->st_dev = 0;
|
|
|
1418 buffer->st_rdev = 0;
|
|
|
1419 buffer->st_atime = 0;
|
|
|
1420 buffer->st_ctime = 0;
|
|
|
1421 buffer->st_mtime = 0;
|
|
|
1422 buffer->st_nlink = 0;
|
|
|
1423 ret = GetFileInformationByHandle((HANDLE) _get_osfhandle(handle), &lpFileInfo);
|
|
|
1424 if (!ret)
|
|
|
1425 {
|
|
|
1426 return -1;
|
|
|
1427 }
|
|
|
1428 else
|
|
|
1429 {
|
|
|
1430 buffer->st_mtime = convert_time (lpFileInfo.ftLastWriteTime);
|
|
|
1431 buffer->st_atime = convert_time (lpFileInfo.ftLastAccessTime);
|
|
|
1432 if (buffer->st_atime == 0) buffer->st_atime = buffer->st_mtime;
|
|
|
1433 buffer->st_ctime = convert_time (lpFileInfo.ftCreationTime);
|
|
|
1434 if (buffer->st_ctime == 0) buffer->st_ctime = buffer->st_mtime;
|
|
|
1435 buffer->st_size = lpFileInfo.nFileSizeLow;
|
|
|
1436 buffer->st_nlink = (short) lpFileInfo.nNumberOfLinks;
|
|
|
1437 return 0;
|
|
|
1438 }
|
|
|
1439 }
|
|
|
1440
|
|
100
|
1441 /* MSVC stat function can't cope with UNC names and has other bugs, so
|
|
|
1442 replace it with our own. This also allows us to calculate consistent
|
|
|
1443 inode values without hacks in the main Emacs code. */
|
|
|
1444 int
|
|
|
1445 stat (const char * path, struct stat * buf)
|
|
|
1446 {
|
|
|
1447 char * name;
|
|
|
1448 WIN32_FIND_DATA wfd;
|
|
|
1449 HANDLE fh;
|
|
209
|
1450 DWORD fake_inode;
|
|
100
|
1451 int permission;
|
|
|
1452 int len;
|
|
|
1453 int rootdir = FALSE;
|
|
|
1454
|
|
|
1455 if (path == NULL || buf == NULL)
|
|
|
1456 {
|
|
|
1457 errno = EFAULT;
|
|
|
1458 return -1;
|
|
|
1459 }
|
|
|
1460
|
|
|
1461 name = (char *) map_win32_filename (path, &path);
|
|
|
1462 /* must be valid filename, no wild cards */
|
|
|
1463 if (strchr (name, '*') || strchr (name, '?'))
|
|
|
1464 {
|
|
|
1465 errno = ENOENT;
|
|
|
1466 return -1;
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 /* Remove trailing directory separator, unless name is the root
|
|
|
1470 directory of a drive or UNC volume in which case ensure there
|
|
|
1471 is a trailing separator. */
|
|
|
1472 len = strlen (name);
|
|
|
1473 rootdir = (path >= name + len - 1
|
|
|
1474 && (IS_DIRECTORY_SEP (*path) || *path == 0));
|
|
400
|
1475 name = strcpy ((char *)alloca (len + 2), name);
|
|
100
|
1476
|
|
|
1477 if (rootdir)
|
|
|
1478 {
|
|
|
1479 if (!IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1480 strcat (name, "\\");
|
|
|
1481 if (GetDriveType (name) < 2)
|
|
|
1482 {
|
|
|
1483 errno = ENOENT;
|
|
|
1484 return -1;
|
|
|
1485 }
|
|
|
1486 memset (&wfd, 0, sizeof (wfd));
|
|
|
1487 wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
|
|
|
1488 wfd.ftCreationTime = utc_base_ft;
|
|
|
1489 wfd.ftLastAccessTime = utc_base_ft;
|
|
|
1490 wfd.ftLastWriteTime = utc_base_ft;
|
|
|
1491 strcpy (wfd.cFileName, name);
|
|
|
1492 }
|
|
|
1493 else
|
|
|
1494 {
|
|
|
1495 if (IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1496 name[len - 1] = 0;
|
|
209
|
1497
|
|
|
1498 /* (This is hacky, but helps when doing file completions on
|
|
|
1499 network drives.) Optimize by using information available from
|
|
|
1500 active readdir if possible. */
|
|
|
1501 if (dir_find_handle != INVALID_HANDLE_VALUE &&
|
|
|
1502 (len = strlen (dir_pathname)),
|
|
|
1503 strnicmp (name, dir_pathname, len) == 0 &&
|
|
|
1504 IS_DIRECTORY_SEP (name[len]) &&
|
|
|
1505 stricmp (name + len + 1, dir_static.d_name) == 0)
|
|
|
1506 {
|
|
|
1507 /* This was the last entry returned by readdir. */
|
|
|
1508 wfd = dir_find_data;
|
|
|
1509 }
|
|
|
1510 else
|
|
|
1511 {
|
|
100
|
1512 fh = FindFirstFile (name, &wfd);
|
|
|
1513 if (fh == INVALID_HANDLE_VALUE)
|
|
|
1514 {
|
|
|
1515 errno = ENOENT;
|
|
|
1516 return -1;
|
|
|
1517 }
|
|
|
1518 FindClose (fh);
|
|
|
1519 }
|
|
209
|
1520 }
|
|
100
|
1521
|
|
|
1522 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1523 {
|
|
|
1524 buf->st_mode = _S_IFDIR;
|
|
|
1525 buf->st_nlink = 2; /* doesn't really matter */
|
|
209
|
1526 fake_inode = 0; /* this doesn't either I think */
|
|
100
|
1527 }
|
|
263
|
1528 else if (!NILP (Vmswindows_get_true_file_attributes))
|
|
100
|
1529 {
|
|
380
|
1530 /* This is more accurate in terms of getting the correct number
|
|
|
1531 of links, but is quite slow (it is noticeable when Emacs is
|
|
100
|
1532 making a list of file name completions). */
|
|
|
1533 BY_HANDLE_FILE_INFORMATION info;
|
|
|
1534
|
|
209
|
1535 /* No access rights required to get info. */
|
|
211
|
1536 fh = CreateFile (name, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
|
|
1537 OPEN_EXISTING, 0, NULL);
|
|
100
|
1538
|
|
|
1539 if (GetFileInformationByHandle (fh, &info))
|
|
|
1540 {
|
|
|
1541 switch (GetFileType (fh))
|
|
|
1542 {
|
|
|
1543 case FILE_TYPE_DISK:
|
|
|
1544 buf->st_mode = _S_IFREG;
|
|
|
1545 break;
|
|
|
1546 case FILE_TYPE_PIPE:
|
|
|
1547 buf->st_mode = _S_IFIFO;
|
|
|
1548 break;
|
|
|
1549 case FILE_TYPE_CHAR:
|
|
|
1550 case FILE_TYPE_UNKNOWN:
|
|
|
1551 default:
|
|
|
1552 buf->st_mode = _S_IFCHR;
|
|
|
1553 }
|
|
288
|
1554 buf->st_nlink = (short) info.nNumberOfLinks;
|
|
209
|
1555 /* Might as well use file index to fake inode values, but this
|
|
|
1556 is not guaranteed to be unique unless we keep a handle open
|
|
|
1557 all the time (even then there are situations where it is
|
|
|
1558 not unique). Reputedly, there are at most 48 bits of info
|
|
|
1559 (on NTFS, presumably less on FAT). */
|
|
|
1560 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh;
|
|
100
|
1561 CloseHandle (fh);
|
|
|
1562 }
|
|
|
1563 else
|
|
|
1564 {
|
|
|
1565 errno = EACCES;
|
|
|
1566 return -1;
|
|
|
1567 }
|
|
209
|
1568 }
|
|
|
1569 else
|
|
|
1570 {
|
|
|
1571 /* Don't bother to make this information more accurate. */
|
|
100
|
1572 buf->st_mode = _S_IFREG;
|
|
|
1573 buf->st_nlink = 1;
|
|
209
|
1574 fake_inode = 0;
|
|
|
1575 }
|
|
|
1576
|
|
|
1577 #if 0
|
|
|
1578 /* Not sure if there is any point in this. */
|
|
|
1579 if (!NILP (Vwin32_generate_fake_inodes))
|
|
|
1580 fake_inode = generate_inode_val (name);
|
|
|
1581 else if (fake_inode == 0)
|
|
|
1582 {
|
|
|
1583 /* For want of something better, try to make everything unique. */
|
|
|
1584 static DWORD gen_num = 0;
|
|
|
1585 fake_inode = ++gen_num;
|
|
|
1586 }
|
|
100
|
1587 #endif
|
|
209
|
1588
|
|
288
|
1589 /* #### MSVC defines _ino_t to be short; other libc's might not. */
|
|
|
1590 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16));
|
|
100
|
1591
|
|
|
1592 /* consider files to belong to current user */
|
|
398
|
1593 buf->st_uid = buf->st_gid = nt_fake_unix_uid;
|
|
100
|
1594
|
|
|
1595 /* volume_info is set indirectly by map_win32_filename */
|
|
|
1596 buf->st_dev = volume_info.serialnum;
|
|
|
1597 buf->st_rdev = volume_info.serialnum;
|
|
|
1598
|
|
|
1599 buf->st_size = wfd.nFileSizeLow;
|
|
|
1600
|
|
|
1601 /* Convert timestamps to Unix format. */
|
|
|
1602 buf->st_mtime = convert_time (wfd.ftLastWriteTime);
|
|
|
1603 buf->st_atime = convert_time (wfd.ftLastAccessTime);
|
|
|
1604 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
|
|
|
1605 buf->st_ctime = convert_time (wfd.ftCreationTime);
|
|
|
1606 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
|
|
|
1607
|
|
|
1608 /* determine rwx permissions */
|
|
|
1609 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
|
|
|
1610 permission = _S_IREAD;
|
|
|
1611 else
|
|
|
1612 permission = _S_IREAD | _S_IWRITE;
|
|
|
1613
|
|
|
1614 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1615 permission |= _S_IEXEC;
|
|
|
1616 else
|
|
|
1617 {
|
|
|
1618 char * p = strrchr (name, '.');
|
|
|
1619 if (p != NULL &&
|
|
|
1620 (stricmp (p, ".exe") == 0 ||
|
|
|
1621 stricmp (p, ".com") == 0 ||
|
|
|
1622 stricmp (p, ".bat") == 0 ||
|
|
|
1623 stricmp (p, ".cmd") == 0))
|
|
|
1624 permission |= _S_IEXEC;
|
|
|
1625 }
|
|
|
1626
|
|
|
1627 buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
|
|
|
1628
|
|
|
1629 return 0;
|
|
|
1630 }
|
|
398
|
1631 #endif /* defined(_MSC_VER) && _MSC_VER < 1100 */
|
|
100
|
1632
|
|
|
1633 /* From callproc.c */
|
|
|
1634 extern Lisp_Object Vbinary_process_input;
|
|
|
1635 extern Lisp_Object Vbinary_process_output;
|
|
|
1636
|
|
|
1637 /* Unix pipe() has only one arg */
|
|
|
1638 int
|
|
|
1639 sys_pipe (int * phandles)
|
|
|
1640 {
|
|
|
1641 int rc;
|
|
|
1642 unsigned flags;
|
|
|
1643
|
|
209
|
1644 /* make pipe handles non-inheritable; when we spawn a child, we
|
|
|
1645 replace the relevant handle with an inheritable one. Also put
|
|
|
1646 pipes into binary mode; we will do text mode translation ourselves
|
|
|
1647 if required. */
|
|
|
1648 rc = _pipe (phandles, 0, _O_NOINHERIT | _O_BINARY);
|
|
100
|
1649
|
|
|
1650 if (rc == 0)
|
|
|
1651 {
|
|
|
1652 flags = FILE_PIPE | FILE_READ;
|
|
|
1653 if (!NILP (Vbinary_process_output))
|
|
|
1654 flags |= FILE_BINARY;
|
|
|
1655 fd_info[phandles[0]].flags = flags;
|
|
|
1656
|
|
|
1657 flags = FILE_PIPE | FILE_WRITE;
|
|
|
1658 if (!NILP (Vbinary_process_input))
|
|
|
1659 flags |= FILE_BINARY;
|
|
|
1660 fd_info[phandles[1]].flags = flags;
|
|
|
1661 }
|
|
|
1662
|
|
|
1663 return rc;
|
|
|
1664 }
|
|
|
1665
|
|
|
1666 void
|
|
288
|
1667 term_ntproc (int unused)
|
|
100
|
1668 {
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 void
|
|
404
|
1672 init_ntproc (void)
|
|
100
|
1673 {
|
|
|
1674 /* Initial preparation for subprocess support: replace our standard
|
|
|
1675 handles with non-inheritable versions. */
|
|
|
1676 {
|
|
|
1677 HANDLE parent;
|
|
|
1678 HANDLE stdin_save = INVALID_HANDLE_VALUE;
|
|
|
1679 HANDLE stdout_save = INVALID_HANDLE_VALUE;
|
|
|
1680 HANDLE stderr_save = INVALID_HANDLE_VALUE;
|
|
|
1681
|
|
|
1682 parent = GetCurrentProcess ();
|
|
|
1683
|
|
|
1684 /* ignore errors when duplicating and closing; typically the
|
|
|
1685 handles will be invalid when running as a gui program. */
|
|
|
1686 DuplicateHandle (parent,
|
|
|
1687 GetStdHandle (STD_INPUT_HANDLE),
|
|
|
1688 parent,
|
|
|
1689 &stdin_save,
|
|
|
1690 0,
|
|
|
1691 FALSE,
|
|
|
1692 DUPLICATE_SAME_ACCESS);
|
|
|
1693
|
|
|
1694 DuplicateHandle (parent,
|
|
|
1695 GetStdHandle (STD_OUTPUT_HANDLE),
|
|
|
1696 parent,
|
|
|
1697 &stdout_save,
|
|
|
1698 0,
|
|
|
1699 FALSE,
|
|
|
1700 DUPLICATE_SAME_ACCESS);
|
|
|
1701
|
|
|
1702 DuplicateHandle (parent,
|
|
|
1703 GetStdHandle (STD_ERROR_HANDLE),
|
|
|
1704 parent,
|
|
|
1705 &stderr_save,
|
|
|
1706 0,
|
|
|
1707 FALSE,
|
|
|
1708 DUPLICATE_SAME_ACCESS);
|
|
|
1709
|
|
|
1710 fclose (stdin);
|
|
|
1711 fclose (stdout);
|
|
|
1712 fclose (stderr);
|
|
|
1713
|
|
|
1714 if (stdin_save != INVALID_HANDLE_VALUE)
|
|
|
1715 _open_osfhandle ((long) stdin_save, O_TEXT);
|
|
|
1716 else
|
|
|
1717 _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY);
|
|
209
|
1718 _fdopen (0, "r");
|
|
100
|
1719
|
|
|
1720 if (stdout_save != INVALID_HANDLE_VALUE)
|
|
|
1721 _open_osfhandle ((long) stdout_save, O_TEXT);
|
|
|
1722 else
|
|
|
1723 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
209
|
1724 _fdopen (1, "w");
|
|
100
|
1725
|
|
|
1726 if (stderr_save != INVALID_HANDLE_VALUE)
|
|
|
1727 _open_osfhandle ((long) stderr_save, O_TEXT);
|
|
|
1728 else
|
|
|
1729 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
209
|
1730 _fdopen (2, "w");
|
|
100
|
1731 }
|
|
|
1732
|
|
|
1733 /* unfortunately, atexit depends on implementation of malloc */
|
|
|
1734 /* atexit (term_ntproc); */
|
|
|
1735 signal (SIGABRT, term_ntproc);
|
|
209
|
1736
|
|
|
1737 /* determine which drives are fixed, for GetCachedVolumeInformation */
|
|
|
1738 {
|
|
|
1739 /* GetDriveType must have trailing backslash. */
|
|
|
1740 char drive[] = "A:\\";
|
|
|
1741
|
|
|
1742 /* Loop over all possible drive letters */
|
|
|
1743 while ( *drive <= 'Z' )
|
|
|
1744 {
|
|
|
1745 /* Record if this drive letter refers to a fixed drive. */
|
|
|
1746 fixed_drives[ DRIVE_INDEX (*drive) ] =
|
|
|
1747 (GetDriveType (drive) == DRIVE_FIXED);
|
|
|
1748
|
|
|
1749 (*drive)++;
|
|
|
1750 }
|
|
|
1751 }
|
|
100
|
1752 }
|
|
|
1753 #ifndef HAVE_TTY
|
|
|
1754 Lisp_Object
|
|
|
1755 tty_semi_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1756 Error_behavior errb)
|
|
|
1757 {
|
|
|
1758 return Vstdio_str;
|
|
|
1759 }
|
|
|
1760
|
|
|
1761 Lisp_Object
|
|
|
1762 tty_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1763 Error_behavior errb)
|
|
|
1764 {
|
|
|
1765 return Vstdio_str;
|
|
|
1766 }
|
|
|
1767
|
|
|
1768 Lisp_Object
|
|
|
1769 tty_semi_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1770 Error_behavior errb)
|
|
|
1771 {
|
|
|
1772 return Vstdio_str;
|
|
|
1773 }
|
|
|
1774
|
|
|
1775 Lisp_Object
|
|
|
1776 tty_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1777 Error_behavior errb)
|
|
|
1778 {
|
|
|
1779 return Vstdio_str;
|
|
|
1780 }
|
|
|
1781 #endif
|
|
|
1782
|
|
223
|
1783 /*--------------------------------------------------------------------*/
|
|
|
1784 /* Signal support */
|
|
|
1785 /*--------------------------------------------------------------------*/
|
|
|
1786
|
|
|
1787 /* We need MS-defined signal and raise here */
|
|
|
1788 #undef signal
|
|
|
1789 #undef raise
|
|
|
1790
|
|
|
1791 #define sigmask(nsig) (1U << nsig)
|
|
|
1792
|
|
|
1793 /* We can support as many signals as fit into word */
|
|
|
1794 #define SIG_MAX 32
|
|
|
1795
|
|
|
1796 /* Signal handlers. Initial value = 0 = SIG_DFL */
|
|
|
1797 static void (__cdecl *signal_handlers[SIG_MAX])(int) = {0};
|
|
|
1798
|
|
|
1799 /* Signal block mask: bit set to 1 means blocked */
|
|
|
1800 unsigned signal_block_mask = 0;
|
|
|
1801
|
|
|
1802 /* Signal pending mask: bit set to 1 means sig is pending */
|
|
|
1803 unsigned signal_pending_mask = 0;
|
|
|
1804
|
|
|
1805 msw_sighandler msw_sigset (int nsig, msw_sighandler handler)
|
|
|
1806 {
|
|
|
1807 /* We delegate some signals to the system function */
|
|
|
1808 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
288
|
1809 return signal (nsig, handler);
|
|
223
|
1810
|
|
|
1811 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1812 {
|
|
|
1813 errno = EINVAL;
|
|
288
|
1814 return NULL;
|
|
223
|
1815 }
|
|
|
1816
|
|
|
1817 /* Store handler ptr */
|
|
288
|
1818 {
|
|
|
1819 msw_sighandler old_handler = signal_handlers[nsig];
|
|
|
1820 signal_handlers[nsig] = handler;
|
|
|
1821 return old_handler;
|
|
|
1822 }
|
|
223
|
1823 }
|
|
|
1824
|
|
|
1825 int msw_sighold (int nsig)
|
|
|
1826 {
|
|
|
1827 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1828 return errno = EINVAL;
|
|
|
1829
|
|
|
1830 signal_block_mask |= sigmask(nsig);
|
|
|
1831 return 0;
|
|
|
1832 }
|
|
|
1833
|
|
|
1834 int msw_sigrelse (int nsig)
|
|
|
1835 {
|
|
|
1836 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1837 return errno = EINVAL;
|
|
|
1838
|
|
|
1839 signal_block_mask &= ~sigmask(nsig);
|
|
|
1840
|
|
|
1841 if (signal_pending_mask & sigmask(nsig))
|
|
|
1842 msw_raise (nsig);
|
|
|
1843
|
|
|
1844 return 0;
|
|
|
1845 }
|
|
|
1846
|
|
|
1847 int msw_sigpause (int nsig)
|
|
|
1848 {
|
|
|
1849 /* This is currently not called, because the only
|
|
|
1850 call to sigpause inside XEmacs is with SIGCHLD
|
|
|
1851 parameter. Just in case, we put an assert here,
|
|
|
1852 so anyone who will add a call to sigpause will
|
|
|
1853 be surprised (or surprise someone else...) */
|
|
|
1854 assert (0);
|
|
|
1855 return 0;
|
|
|
1856 }
|
|
|
1857
|
|
|
1858 int msw_raise (int nsig)
|
|
|
1859 {
|
|
|
1860 /* We delegate some raises to the system routine */
|
|
|
1861 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
|
1862 return raise (nsig);
|
|
|
1863
|
|
|
1864 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1865 return errno = EINVAL;
|
|
|
1866
|
|
|
1867 /* If the signal is blocked, remember to issue later */
|
|
|
1868 if (signal_block_mask & sigmask(nsig))
|
|
|
1869 {
|
|
|
1870 signal_pending_mask |= sigmask(nsig);
|
|
|
1871 return 0;
|
|
|
1872 }
|
|
|
1873
|
|
|
1874 if (signal_handlers[nsig] == SIG_IGN)
|
|
|
1875 return 0;
|
|
|
1876
|
|
|
1877 if (signal_handlers[nsig] != SIG_DFL)
|
|
|
1878 {
|
|
|
1879 (*signal_handlers[nsig])(nsig);
|
|
|
1880 return 0;
|
|
|
1881 }
|
|
|
1882
|
|
|
1883 /* Default signal actions */
|
|
|
1884 if (nsig == SIGALRM || nsig == SIGPROF)
|
|
|
1885 exit (3);
|
|
|
1886
|
|
|
1887 /* Other signals are ignored by default */
|
|
398
|
1888 return 0;
|
|
223
|
1889 }
|
|
|
1890
|
|
|
1891 /*--------------------------------------------------------------------*/
|
|
|
1892 /* Async timers */
|
|
|
1893 /*--------------------------------------------------------------------*/
|
|
|
1894
|
|
|
1895 /* We emulate two timers, one for SIGALRM, another for SIGPROF.
|
|
|
1896
|
|
|
1897 itimerproc() function has an implementation limitation: it does
|
|
|
1898 not allow to set *both* interval and period. If an attempt is
|
|
|
1899 made to set both, and then they are unequal, the function
|
|
|
1900 asserts.
|
|
|
1901
|
|
|
1902 Minimum timer resolution on Win32 systems varies, and is greater
|
|
|
1903 than or equal than 1 ms. The resolution is always wrapped not to
|
|
|
1904 attempt to get below the system defined limit.
|
|
|
1905 */
|
|
|
1906
|
|
|
1907 /* Timer precision, denominator of one fraction: for 100 ms
|
|
|
1908 interval, request 10 ms precision
|
|
|
1909 */
|
|
|
1910 const int timer_prec = 10;
|
|
|
1911
|
|
380
|
1912 /* Last itimervals, as set by calls to setitimer */
|
|
223
|
1913 static struct itimerval it_alarm;
|
|
|
1914 static struct itimerval it_prof;
|
|
|
1915
|
|
|
1916 /* Timer IDs as returned by MM */
|
|
|
1917 MMRESULT tid_alarm = 0;
|
|
|
1918 MMRESULT tid_prof = 0;
|
|
|
1919
|
|
|
1920 static void CALLBACK timer_proc (UINT uID, UINT uMsg, DWORD dwUser,
|
|
|
1921 DWORD dw1, DWORD dw2)
|
|
|
1922 {
|
|
|
1923 /* Just raise a signal indicated by dwUser parameter */
|
|
|
1924 msw_raise (dwUser);
|
|
|
1925 }
|
|
|
1926
|
|
|
1927 /* Divide time in ms specified by IT by DENOM. Return 1 ms
|
|
|
1928 if division results in zero */
|
|
|
1929 static UINT period (const struct itimerval* it, UINT denom)
|
|
|
1930 {
|
|
|
1931 static TIMECAPS time_caps;
|
|
|
1932
|
|
|
1933 UINT res;
|
|
|
1934 const struct timeval* tv =
|
|
|
1935 (it->it_value.tv_sec == 0 && it->it_value.tv_usec == 0)
|
|
|
1936 ? &it->it_interval : &it->it_value;
|
|
|
1937
|
|
|
1938 /* Zero means stop timer */
|
|
|
1939 if (tv->tv_sec == 0 && tv->tv_usec == 0)
|
|
|
1940 return 0;
|
|
|
1941
|
|
380
|
1942 /* Convert to ms and divide by denom */
|
|
223
|
1943 res = (tv->tv_sec * 1000 + (tv->tv_usec + 500) / 1000) / denom;
|
|
|
1944
|
|
|
1945 /* Converge to minimum timer resolution */
|
|
|
1946 if (time_caps.wPeriodMin == 0)
|
|
|
1947 timeGetDevCaps (&time_caps, sizeof(time_caps));
|
|
|
1948
|
|
|
1949 if (res < time_caps.wPeriodMin)
|
|
|
1950 res = time_caps.wPeriodMin;
|
|
|
1951
|
|
|
1952 return res;
|
|
|
1953 }
|
|
|
1954
|
|
|
1955 static int setitimer_helper (const struct itimerval* itnew,
|
|
|
1956 struct itimerval* itold, struct itimerval* itcurrent,
|
|
|
1957 MMRESULT* tid, DWORD sigkind)
|
|
|
1958 {
|
|
|
1959 UINT delay, resolution, event_type;
|
|
|
1960
|
|
|
1961 /* First stop the old timer */
|
|
|
1962 if (*tid)
|
|
|
1963 {
|
|
|
1964 timeKillEvent (*tid);
|
|
|
1965 timeEndPeriod (period (itcurrent, timer_prec));
|
|
|
1966 *tid = 0;
|
|
|
1967 }
|
|
|
1968
|
|
|
1969 /* Return old itimerval if requested */
|
|
|
1970 if (itold)
|
|
|
1971 *itold = *itcurrent;
|
|
|
1972
|
|
|
1973 *itcurrent = *itnew;
|
|
|
1974
|
|
|
1975 /* Determine if to start new timer */
|
|
|
1976 delay = period (itnew, 1);
|
|
|
1977 if (delay)
|
|
|
1978 {
|
|
|
1979 resolution = period (itnew, timer_prec);
|
|
|
1980 event_type = (itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
1981 ? TIME_ONESHOT : TIME_PERIODIC;
|
|
|
1982 timeBeginPeriod (resolution);
|
|
|
1983 *tid = timeSetEvent (delay, resolution, timer_proc, sigkind, event_type);
|
|
|
1984 }
|
|
|
1985
|
|
|
1986 return !delay || *tid;
|
|
|
1987 }
|
|
|
1988
|
|
|
1989 int setitimer (int kind, const struct itimerval* itnew,
|
|
|
1990 struct itimerval* itold)
|
|
|
1991 {
|
|
|
1992 /* In this version, both interval and value are allowed
|
|
|
1993 only if they are equal. */
|
|
|
1994 assert ((itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
1995 || (itnew->it_interval.tv_sec == 0 && itnew->it_interval.tv_usec == 0)
|
|
|
1996 || (itnew->it_value.tv_sec == itnew->it_interval.tv_sec &&
|
|
|
1997 itnew->it_value.tv_usec == itnew->it_interval.tv_usec));
|
|
|
1998
|
|
|
1999 if (kind == ITIMER_REAL)
|
|
|
2000 return setitimer_helper (itnew, itold, &it_alarm, &tid_alarm, SIGALRM);
|
|
|
2001 else if (kind == ITIMER_PROF)
|
|
|
2002 return setitimer_helper (itnew, itold, &it_prof, &tid_prof, SIGPROF);
|
|
|
2003 else
|
|
|
2004 return errno = EINVAL;
|
|
|
2005 }
|
|
|
2006
|
|
398
|
2007 int
|
|
|
2008 open_input_file (file_data *p_file, const char *filename)
|
|
|
2009 {
|
|
|
2010 HANDLE file;
|
|
|
2011 HANDLE file_mapping;
|
|
|
2012 void *file_base;
|
|
|
2013 DWORD size, upper_size;
|
|
|
2014
|
|
|
2015 file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL,
|
|
|
2016 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
|
|
|
2017 if (file == INVALID_HANDLE_VALUE)
|
|
|
2018 return FALSE;
|
|
|
2019
|
|
|
2020 size = GetFileSize (file, &upper_size);
|
|
|
2021 file_mapping = CreateFileMapping (file, NULL, PAGE_READONLY,
|
|
|
2022 0, size, NULL);
|
|
|
2023 if (!file_mapping)
|
|
|
2024 return FALSE;
|
|
|
2025
|
|
|
2026 file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size);
|
|
|
2027 if (file_base == 0)
|
|
|
2028 return FALSE;
|
|
|
2029
|
|
400
|
2030 p_file->name = (char *)filename;
|
|
398
|
2031 p_file->size = size;
|
|
|
2032 p_file->file = file;
|
|
|
2033 p_file->file_mapping = file_mapping;
|
|
400
|
2034 p_file->file_base = (char *)file_base;
|
|
398
|
2035
|
|
|
2036 return TRUE;
|
|
|
2037 }
|
|
|
2038
|
|
|
2039 /* Close the system structures associated with the given file. */
|
|
|
2040 void
|
|
|
2041 close_file_data (file_data *p_file)
|
|
|
2042 {
|
|
|
2043 UnmapViewOfFile (p_file->file_base);
|
|
|
2044 CloseHandle (p_file->file_mapping);
|
|
|
2045 CloseHandle (p_file->file);
|
|
|
2046 }
|
|
|
2047
|
|
|
2048 void
|
|
|
2049 vars_of_nt (void)
|
|
|
2050 {
|
|
|
2051 DEFVAR_INT ("nt-fake-unix-uid", &nt_fake_unix_uid /*
|
|
|
2052 *Set uid returned by `user-uid' and `user-real-uid'.
|
|
|
2053 Under NT and 9x, there is no uids, and even no almighty user called root.
|
|
|
2054 By setting this variable, you can have any uid of choice. Default is 0.
|
|
|
2055 Changes to this variable take effect immediately.
|
|
|
2056 */ );
|
|
|
2057 nt_fake_unix_uid = 0;
|
|
|
2058 }
|
|
|
2059
|
|
100
|
2060 /* end of nt.c */
|
