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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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408
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50 #include "syswindows.h"
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100
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51
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52 #include "nt.h"
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53 #include <sys/dir.h>
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54 #include "ntheap.h"
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55
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209
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56
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263
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57 extern Lisp_Object Vmswindows_downcase_file_names;
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58 #if 0
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209
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59 extern Lisp_Object Vwin32_generate_fake_inodes;
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263
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60 #endif
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61 extern Lisp_Object Vmswindows_get_true_file_attributes;
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209
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62
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398
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63 int nt_fake_unix_uid;
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288
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64
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209
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65 static char startup_dir[ MAXPATHLEN ];
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66
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100
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67 /* Get the current working directory. */
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68 char *
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69 getwd (char *dir)
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70 {
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209
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71 #if 0
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100
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72 if (GetCurrentDirectory (MAXPATHLEN, dir) > 0)
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73 return dir;
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74 return NULL;
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209
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75 #else
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76 /* Emacs doesn't actually change directory itself, and we want to
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77 force our real wd to be where emacs.exe is to avoid unnecessary
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78 conflicts when trying to rename or delete directories. */
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79 strcpy (dir, startup_dir);
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80 return dir;
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81 #endif
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100
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82 }
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83
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84 /* Emulate getloadavg. */
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85 int
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86 getloadavg (double loadavg[], int nelem)
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87 {
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88 int i;
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89
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90 /* A faithful emulation is going to have to be saved for a rainy day. */
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91 for (i = 0; i < nelem; i++)
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92 {
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93 loadavg[i] = 0.0;
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94 }
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95 return i;
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96 }
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97
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98 /* Emulate getpwuid, getpwnam and others. */
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99
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100 #define PASSWD_FIELD_SIZE 256
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101
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102 static char the_passwd_name[PASSWD_FIELD_SIZE];
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103 static char the_passwd_passwd[PASSWD_FIELD_SIZE];
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104 static char the_passwd_gecos[PASSWD_FIELD_SIZE];
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105 static char the_passwd_dir[PASSWD_FIELD_SIZE];
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106 static char the_passwd_shell[PASSWD_FIELD_SIZE];
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107
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108 static struct passwd the_passwd =
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109 {
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110 the_passwd_name,
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111 the_passwd_passwd,
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112 0,
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113 0,
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114 0,
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115 the_passwd_gecos,
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116 the_passwd_dir,
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117 the_passwd_shell,
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118 };
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119
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398
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120 uid_t
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404
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121 getuid (void)
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398
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122 {
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123 return nt_fake_unix_uid;
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100
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124 }
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125
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398
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126 uid_t
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404
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127 geteuid (void)
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100
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128 {
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398
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129 return nt_fake_unix_uid;
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100
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130 }
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131
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398
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132 gid_t
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404
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133 getgid (void)
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100
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134 {
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135 return the_passwd.pw_gid;
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136 }
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137
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398
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138 gid_t
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404
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139 getegid (void)
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100
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140 {
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141 return getgid ();
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142 }
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143
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144 struct passwd *
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398
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145 getpwuid (uid_t uid)
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100
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146 {
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398
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147 if (uid == nt_fake_unix_uid)
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148 {
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149 the_passwd.pw_gid = the_passwd.pw_uid = uid;
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150 return &the_passwd;
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151 }
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152 else
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153 return NULL;
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100
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154 }
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155
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156 struct passwd *
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288
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157 getpwnam (const char *name)
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100
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158 {
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159 struct passwd *pw;
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160
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161 pw = getpwuid (getuid ());
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162 if (!pw)
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163 return pw;
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164
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165 if (stricmp (name, pw->pw_name))
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166 return NULL;
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167
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168 return pw;
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169 }
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170
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171 void
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404
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172 init_user_info (void)
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100
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173 {
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398
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174 /* This code is pretty much of ad hoc nature. There is no unix-like
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175 UIDs under Windows NT. There is no concept of root user, because
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176 all security is ACL-based. Instead, let's use a simple variable,
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177 nt-fake-unix-uid, which would allow the user to have a uid of
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178 choice. --kkm, 02/03/2000 */
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179 #if 0
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100
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180 /* Find the user's real name by opening the process token and
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181 looking up the name associated with the user-sid in that token.
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182
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183 Use the relative portion of the identifier authority value from
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184 the user-sid as the user id value (same for group id using the
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185 primary group sid from the process token). */
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186
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187 char user_sid[256], name[256], domain[256];
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188 DWORD length = sizeof (name), dlength = sizeof (domain), trash;
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189 HANDLE token = NULL;
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190 SID_NAME_USE user_type;
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191
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192 if (OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &token)
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193 && GetTokenInformation (token, TokenUser,
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194 (PVOID) user_sid, sizeof (user_sid), &trash)
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195 && LookupAccountSid (NULL, *((PSID *) user_sid), name, &length,
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196 domain, &dlength, &user_type))
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197 {
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198 strcpy (the_passwd.pw_name, name);
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199 /* Determine a reasonable uid value. */
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200 if (stricmp ("administrator", name) == 0)
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201 {
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202 the_passwd.pw_uid = 0;
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203 the_passwd.pw_gid = 0;
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204 }
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205 else
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206 {
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207 SID_IDENTIFIER_AUTHORITY * pSIA;
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208
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209 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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210 /* I believe the relative portion is the last 4 bytes (of 6)
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211 with msb first. */
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212 the_passwd.pw_uid = ((pSIA->Value[2] << 24) +
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213 (pSIA->Value[3] << 16) +
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214 (pSIA->Value[4] << 8) +
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215 (pSIA->Value[5] << 0));
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216 /* restrict to conventional uid range for normal users */
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217 the_passwd.pw_uid = the_passwd.pw_uid % 60001;
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218
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219 /* Get group id */
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220 if (GetTokenInformation (token, TokenPrimaryGroup,
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221 (PVOID) user_sid, sizeof (user_sid), &trash))
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222 {
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223 SID_IDENTIFIER_AUTHORITY * pSIA;
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224
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225 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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226 the_passwd.pw_gid = ((pSIA->Value[2] << 24) +
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227 (pSIA->Value[3] << 16) +
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228 (pSIA->Value[4] << 8) +
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229 (pSIA->Value[5] << 0));
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230 /* I don't know if this is necessary, but for safety... */
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231 the_passwd.pw_gid = the_passwd.pw_gid % 60001;
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232 }
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233 else
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234 the_passwd.pw_gid = the_passwd.pw_uid;
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235 }
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236 }
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237 /* If security calls are not supported (presumably because we
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238 are running under Windows 95), fallback to this. */
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239 else if (GetUserName (name, &length))
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240 {
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241 strcpy (the_passwd.pw_name, name);
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242 if (stricmp ("administrator", name) == 0)
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243 the_passwd.pw_uid = 0;
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244 else
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245 the_passwd.pw_uid = 123;
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246 the_passwd.pw_gid = the_passwd.pw_uid;
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247 }
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248 else
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249 {
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250 strcpy (the_passwd.pw_name, "unknown");
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251 the_passwd.pw_uid = 123;
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252 the_passwd.pw_gid = 123;
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253 }
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254
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398
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255 if (token)
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256 CloseHandle (token);
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257 #else
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258 /* Obtain only logon id here, uid part is moved to getuid */
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259 char name[256];
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260 DWORD length = sizeof (name);
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261 if (GetUserName (name, &length))
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262 strcpy (the_passwd.pw_name, name);
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263 else
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264 strcpy (the_passwd.pw_name, "unknown");
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265 #endif
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266
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100
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267 /* Ensure HOME and SHELL are defined. */
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288
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268 #if 0
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269 /*
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270 * With XEmacs, setting $HOME is deprecated.
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271 */
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100
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272 if (getenv ("HOME") == NULL)
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273 putenv ("HOME=c:/");
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288
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274 #endif
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100
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275 if (getenv ("SHELL") == NULL)
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276 putenv ((GetVersion () & 0x80000000) ? "SHELL=command" : "SHELL=cmd");
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277
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278 /* Set dir and shell from environment variables. */
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400
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279 strcpy (the_passwd.pw_dir, (char *)get_home_directory());
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100
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280 strcpy (the_passwd.pw_shell, getenv ("SHELL"));
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281 }
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282
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283 /* Normalize filename by converting all path separators to
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284 the specified separator. Also conditionally convert upper
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285 case path name components to lower case. */
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286
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287 static void
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400
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288 normalize_filename (char *fp, char path_sep)
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100
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289 {
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290 char sep;
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291 char *elem;
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292
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293 /* Always lower-case drive letters a-z, even if the filesystem
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294 preserves case in filenames.
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295 This is so filenames can be compared by string comparison
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296 functions that are case-sensitive. Even case-preserving filesystems
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297 do not distinguish case in drive letters. */
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298 if (fp[1] == ':' && *fp >= 'A' && *fp <= 'Z')
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299 {
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300 *fp += 'a' - 'A';
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301 fp += 2;
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302 }
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303
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263
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304 if (NILP (Vmswindows_downcase_file_names))
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100
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305 {
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306 while (*fp)
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307 {
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308 if (*fp == '/' || *fp == '\\')
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309 *fp = path_sep;
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310 fp++;
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311 }
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312 return;
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313 }
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314
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315 sep = path_sep; /* convert to this path separator */
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316 elem = fp; /* start of current path element */
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317
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318 do {
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319 if (*fp >= 'a' && *fp <= 'z')
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320 elem = 0; /* don't convert this element */
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321
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322 if (*fp == 0 || *fp == ':')
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323 {
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324 sep = *fp; /* restore current separator (or 0) */
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325 *fp = '/'; /* after conversion of this element */
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326 }
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327
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328 if (*fp == '/' || *fp == '\\')
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329 {
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330 if (elem && elem != fp)
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331 {
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332 *fp = 0; /* temporary end of string */
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333 _strlwr (elem); /* while we convert to lower case */
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334 }
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335 *fp = sep; /* convert (or restore) path separator */
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336 elem = fp + 1; /* next element starts after separator */
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337 sep = path_sep;
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338 }
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339 } while (*fp++);
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340 }
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341
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342 /* Destructively turn backslashes into slashes. */
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343 void
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400
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344 dostounix_filename (char *p)
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100
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345 {
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346 normalize_filename (p, '/');
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347 }
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348
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349 /* Destructively turn slashes into backslashes. */
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350 void
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400
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351 unixtodos_filename (char *p)
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100
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352 {
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353 normalize_filename (p, '\\');
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354 }
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355
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356 /* Remove all CR's that are followed by a LF.
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357 (From msdos.c...probably should figure out a way to share it,
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358 although this code isn't going to ever change.) */
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359 int
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400
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360 crlf_to_lf (int n, unsigned char *buf, unsigned *lf_count)
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100
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361 {
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362 unsigned char *np = buf;
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363 unsigned char *startp = buf;
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364 unsigned char *endp = buf + n;
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365
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366 if (n == 0)
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367 return n;
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368 while (buf < endp - 1)
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369 {
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209
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370 if (*buf == 0x0a)
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371 (*lf_count)++;
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100
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372 if (*buf == 0x0d)
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373 {
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374 if (*(++buf) != 0x0a)
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375 *np++ = 0x0d;
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376 }
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377 else
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378 *np++ = *buf++;
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379 }
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380 if (buf < endp)
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209
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381 {
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382 if (*buf == 0x0a)
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383 (*lf_count)++;
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100
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384 *np++ = *buf++;
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209
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385 }
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100
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386 return np - startp;
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387 }
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388
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209
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389 /* Parse the root part of file name, if present. Return length and
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390 optionally store pointer to char after root. */
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391 static int
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392 parse_root (char * name, char ** pPath)
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393 {
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394 char * start = name;
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395
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396 if (name == NULL)
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397 return 0;
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398
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399 /* find the root name of the volume if given */
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400 if (isalpha (name[0]) && name[1] == ':')
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401 {
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402 /* skip past drive specifier */
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403 name += 2;
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404 if (IS_DIRECTORY_SEP (name[0]))
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405 name++;
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406 }
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407 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
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408 {
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409 int slashes = 2;
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410 name += 2;
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411 do
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412 {
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413 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
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414 break;
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415 name++;
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416 }
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417 while ( *name );
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418 if (IS_DIRECTORY_SEP (name[0]))
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|
|
419 name++;
|
|
|
420 }
|
|
|
421
|
|
|
422 if (pPath)
|
|
|
423 *pPath = name;
|
|
|
424
|
|
|
425 return name - start;
|
|
|
426 }
|
|
|
427
|
|
|
428 /* Get long base name for name; name is assumed to be absolute. */
|
|
|
429 static int
|
|
|
430 get_long_basename (char * name, char * buf, int size)
|
|
|
431 {
|
|
|
432 WIN32_FIND_DATA find_data;
|
|
|
433 HANDLE dir_handle;
|
|
|
434 int len = 0;
|
|
|
435 #ifdef PIGSFLY
|
|
|
436 char *p;
|
|
|
437
|
|
|
438 /* If the last component of NAME has a wildcard character,
|
|
|
439 return it as the basename. */
|
|
|
440 p = name + strlen (name);
|
|
|
441 while (*p != '\\' && *p != ':' && p > name) p--;
|
|
|
442 if (p > name) p++;
|
|
|
443 if (strchr (p, '*') || strchr (p, '?'))
|
|
|
444 {
|
|
|
445 if ((len = strlen (p)) < size)
|
|
|
446 memcpy (buf, p, len + 1);
|
|
|
447 else
|
|
|
448 len = 0;
|
|
|
449 return len;
|
|
|
450 }
|
|
|
451 #endif
|
|
|
452
|
|
|
453 dir_handle = FindFirstFile (name, &find_data);
|
|
|
454 if (dir_handle != INVALID_HANDLE_VALUE)
|
|
|
455 {
|
|
|
456 if ((len = strlen (find_data.cFileName)) < size)
|
|
|
457 memcpy (buf, find_data.cFileName, len + 1);
|
|
|
458 else
|
|
|
459 len = 0;
|
|
|
460 FindClose (dir_handle);
|
|
|
461 }
|
|
|
462 return len;
|
|
|
463 }
|
|
|
464
|
|
|
465 /* Get long name for file, if possible (assumed to be absolute). */
|
|
|
466 BOOL
|
|
|
467 win32_get_long_filename (char * name, char * buf, int size)
|
|
|
468 {
|
|
|
469 char * o = buf;
|
|
|
470 char * p;
|
|
|
471 char * q;
|
|
|
472 char full[ MAX_PATH ];
|
|
|
473 int len;
|
|
|
474
|
|
|
475 len = strlen (name);
|
|
|
476 if (len >= MAX_PATH)
|
|
|
477 return FALSE;
|
|
|
478
|
|
|
479 /* Use local copy for destructive modification. */
|
|
|
480 memcpy (full, name, len+1);
|
|
|
481 unixtodos_filename (full);
|
|
|
482
|
|
|
483 /* Copy root part verbatim. */
|
|
|
484 len = parse_root (full, &p);
|
|
|
485 memcpy (o, full, len);
|
|
|
486 o += len;
|
|
|
487 size -= len;
|
|
|
488
|
|
|
489 do
|
|
|
490 {
|
|
|
491 q = p;
|
|
|
492 p = strchr (q, '\\');
|
|
|
493 if (p) *p = '\0';
|
|
|
494 len = get_long_basename (full, o, size);
|
|
|
495 if (len > 0)
|
|
|
496 {
|
|
|
497 o += len;
|
|
|
498 size -= len;
|
|
|
499 if (p != NULL)
|
|
|
500 {
|
|
|
501 *p++ = '\\';
|
|
|
502 if (size < 2)
|
|
|
503 return FALSE;
|
|
|
504 *o++ = '\\';
|
|
|
505 size--;
|
|
|
506 *o = '\0';
|
|
|
507 }
|
|
|
508 }
|
|
|
509 else
|
|
|
510 return FALSE;
|
|
|
511 }
|
|
|
512 while (p != NULL && *p);
|
|
|
513
|
|
|
514 return TRUE;
|
|
|
515 }
|
|
|
516
|
|
|
517
|
|
100
|
518 /* Routines that are no-ops on NT but are defined to get Emacs to compile. */
|
|
|
519
|
|
239
|
520 #if 0 /* #### We do not need those, do we? -kkm */
|
|
100
|
521 int
|
|
|
522 unrequest_sigio (void)
|
|
|
523 {
|
|
|
524 return 0;
|
|
|
525 }
|
|
|
526
|
|
|
527 int
|
|
|
528 request_sigio (void)
|
|
|
529 {
|
|
|
530 return 0;
|
|
|
531 }
|
|
239
|
532 #endif /* 0 */
|
|
100
|
533
|
|
213
|
534 #define REG_ROOT "SOFTWARE\\GNU\\XEmacs"
|
|
100
|
535
|
|
|
536 LPBYTE
|
|
400
|
537 nt_get_resource (char *key, LPDWORD lpdwtype)
|
|
100
|
538 {
|
|
|
539 LPBYTE lpvalue;
|
|
|
540 HKEY hrootkey = NULL;
|
|
|
541 DWORD cbData;
|
|
|
542
|
|
|
543 /* Check both the current user and the local machine to see if
|
|
|
544 we have any resources. */
|
|
|
545
|
|
|
546 if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
547 {
|
|
|
548 lpvalue = NULL;
|
|
|
549
|
|
|
550 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS
|
|
|
551 && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL
|
|
|
552 && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
553 {
|
|
|
554 return (lpvalue);
|
|
|
555 }
|
|
|
556
|
|
|
557 if (lpvalue) xfree (lpvalue);
|
|
|
558
|
|
|
559 RegCloseKey (hrootkey);
|
|
|
560 }
|
|
|
561
|
|
|
562 if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
563 {
|
|
|
564 lpvalue = NULL;
|
|
|
565
|
|
|
566 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS &&
|
|
|
567 (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL &&
|
|
|
568 RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
569 {
|
|
|
570 return (lpvalue);
|
|
|
571 }
|
|
|
572
|
|
|
573 if (lpvalue) xfree (lpvalue);
|
|
|
574
|
|
|
575 RegCloseKey (hrootkey);
|
|
|
576 }
|
|
|
577
|
|
|
578 return (NULL);
|
|
|
579 }
|
|
|
580
|
|
|
581 void
|
|
404
|
582 init_environment (void)
|
|
100
|
583 {
|
|
|
584 /* Check for environment variables and use registry if they don't exist */
|
|
|
585 {
|
|
|
586 int i;
|
|
|
587 LPBYTE lpval;
|
|
|
588 DWORD dwType;
|
|
|
589
|
|
|
590 static char * env_vars[] =
|
|
|
591 {
|
|
|
592 "HOME",
|
|
|
593 "emacs_dir",
|
|
|
594 "EMACSLOADPATH",
|
|
298
|
595 "EMACSDEBUGPATHS",
|
|
100
|
596 "SHELL",
|
|
209
|
597 "CMDPROXY",
|
|
100
|
598 "EMACSDATA",
|
|
|
599 "EMACSPATH",
|
|
298
|
600 "EMACSPACKAGEPATH",
|
|
100
|
601 "EMACSLOCKDIR",
|
|
298
|
602 "INFOPATH"
|
|
100
|
603 };
|
|
404
|
604 #if defined (HEAP_IN_DATA) && !defined(PDUMP)
|
|
398
|
605 cache_system_info ();
|
|
|
606 #endif
|
|
272
|
607 for (i = 0; i < countof (env_vars); i++)
|
|
100
|
608 {
|
|
|
609 if (!getenv (env_vars[i]) &&
|
|
|
610 (lpval = nt_get_resource (env_vars[i], &dwType)) != NULL)
|
|
|
611 {
|
|
|
612 if (dwType == REG_EXPAND_SZ)
|
|
|
613 {
|
|
|
614 char buf1[500], buf2[500];
|
|
|
615
|
|
|
616 ExpandEnvironmentStrings ((LPSTR) lpval, buf1, 500);
|
|
|
617 _snprintf (buf2, 499, "%s=%s", env_vars[i], buf1);
|
|
|
618 putenv (strdup (buf2));
|
|
|
619 }
|
|
|
620 else if (dwType == REG_SZ)
|
|
|
621 {
|
|
|
622 char buf[500];
|
|
|
623
|
|
|
624 _snprintf (buf, 499, "%s=%s", env_vars[i], lpval);
|
|
|
625 putenv (strdup (buf));
|
|
|
626 }
|
|
|
627
|
|
|
628 xfree (lpval);
|
|
|
629 }
|
|
|
630 }
|
|
|
631 }
|
|
|
632
|
|
209
|
633 /* Another special case: on NT, the PATH variable is actually named
|
|
|
634 "Path" although cmd.exe (perhaps NT itself) arranges for
|
|
|
635 environment variable lookup and setting to be case insensitive.
|
|
|
636 However, Emacs assumes a fully case sensitive environment, so we
|
|
|
637 need to change "Path" to "PATH" to match the expectations of
|
|
|
638 various elisp packages. We do this by the sneaky method of
|
|
|
639 modifying the string in the C runtime environ entry.
|
|
|
640
|
|
|
641 The same applies to COMSPEC. */
|
|
|
642 {
|
|
|
643 char ** envp;
|
|
|
644
|
|
|
645 for (envp = environ; *envp; envp++)
|
|
|
646 if (_strnicmp (*envp, "PATH=", 5) == 0)
|
|
|
647 memcpy (*envp, "PATH=", 5);
|
|
|
648 else if (_strnicmp (*envp, "COMSPEC=", 8) == 0)
|
|
|
649 memcpy (*envp, "COMSPEC=", 8);
|
|
|
650 }
|
|
|
651
|
|
|
652 /* Remember the initial working directory for getwd, then make the
|
|
|
653 real wd be the location of emacs.exe to avoid conflicts when
|
|
|
654 renaming or deleting directories. (We also don't call chdir when
|
|
|
655 running subprocesses for the same reason.) */
|
|
|
656 if (!GetCurrentDirectory (MAXPATHLEN, startup_dir))
|
|
|
657 abort ();
|
|
|
658
|
|
|
659 {
|
|
|
660 char *p;
|
|
|
661 char modname[MAX_PATH];
|
|
|
662
|
|
|
663 if (!GetModuleFileName (NULL, modname, MAX_PATH))
|
|
|
664 abort ();
|
|
|
665 if ((p = strrchr (modname, '\\')) == NULL)
|
|
|
666 abort ();
|
|
|
667 *p = 0;
|
|
|
668
|
|
|
669 SetCurrentDirectory (modname);
|
|
|
670 }
|
|
|
671
|
|
100
|
672 init_user_info ();
|
|
|
673 }
|
|
|
674
|
|
|
675 #ifndef HAVE_X_WINDOWS
|
|
|
676 /* X11R6 on NT provides the single parameter version of this command. */
|
|
|
677
|
|
|
678 #include <sys/timeb.h>
|
|
|
679
|
|
|
680 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */
|
|
|
681 void
|
|
|
682 gettimeofday (struct timeval *tv, struct timezone *tz)
|
|
|
683 {
|
|
|
684 struct _timeb tb;
|
|
|
685 _ftime (&tb);
|
|
|
686
|
|
|
687 tv->tv_sec = tb.time;
|
|
|
688 tv->tv_usec = tb.millitm * 1000L;
|
|
|
689 if (tz)
|
|
|
690 {
|
|
|
691 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
|
|
|
692 tz->tz_dsttime = tb.dstflag; /* type of dst correction */
|
|
|
693 }
|
|
|
694 }
|
|
|
695
|
|
|
696 #endif /* HAVE_X_WINDOWS */
|
|
|
697
|
|
|
698 /* ------------------------------------------------------------------------- */
|
|
|
699 /* IO support and wrapper functions for Win32 API. */
|
|
|
700 /* ------------------------------------------------------------------------- */
|
|
|
701
|
|
|
702 /* Place a wrapper around the MSVC version of ctime. It returns NULL
|
|
|
703 on network directories, so we handle that case here.
|
|
|
704 (Ulrich Leodolter, 1/11/95). */
|
|
|
705 char *
|
|
|
706 sys_ctime (const time_t *t)
|
|
|
707 {
|
|
|
708 char *str = (char *) ctime (t);
|
|
|
709 return (str ? str : "Sun Jan 01 00:00:00 1970");
|
|
|
710 }
|
|
|
711
|
|
|
712 /* Emulate sleep...we could have done this with a define, but that
|
|
|
713 would necessitate including windows.h in the files that used it.
|
|
|
714 This is much easier. */
|
|
|
715
|
|
|
716 #ifndef HAVE_X_WINDOWS
|
|
|
717 void
|
|
|
718 sys_sleep (int seconds)
|
|
|
719 {
|
|
|
720 Sleep (seconds * 1000);
|
|
|
721 }
|
|
|
722 #endif
|
|
|
723
|
|
239
|
724 /* #### This is an evil dirty hack. We must get rid of it.
|
|
|
725 Word "munging" is not in XEmacs lexicon. - kkm */
|
|
|
726
|
|
100
|
727 /* Internal MSVC data and functions for low-level descriptor munging */
|
|
|
728 #if (_MSC_VER == 900)
|
|
|
729 extern char _osfile[];
|
|
|
730 #endif
|
|
|
731 extern int __cdecl _set_osfhnd (int fd, long h);
|
|
|
732 extern int __cdecl _free_osfhnd (int fd);
|
|
|
733
|
|
|
734 /* parallel array of private info on file handles */
|
|
|
735 filedesc fd_info [ MAXDESC ];
|
|
|
736
|
|
209
|
737 typedef struct volume_info_data {
|
|
|
738 struct volume_info_data * next;
|
|
|
739
|
|
|
740 /* time when info was obtained */
|
|
|
741 DWORD timestamp;
|
|
|
742
|
|
|
743 /* actual volume info */
|
|
|
744 char * root_dir;
|
|
100
|
745 DWORD serialnum;
|
|
|
746 DWORD maxcomp;
|
|
|
747 DWORD flags;
|
|
209
|
748 char * name;
|
|
|
749 char * type;
|
|
|
750 } volume_info_data;
|
|
|
751
|
|
|
752 /* Global referenced by various functions. */
|
|
|
753 static volume_info_data volume_info;
|
|
|
754
|
|
|
755 /* Vector to indicate which drives are local and fixed (for which cached
|
|
|
756 data never expires). */
|
|
|
757 static BOOL fixed_drives[26];
|
|
|
758
|
|
|
759 /* Consider cached volume information to be stale if older than 10s,
|
|
|
760 at least for non-local drives. Info for fixed drives is never stale. */
|
|
|
761 #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' )
|
|
|
762 #define VOLINFO_STILL_VALID( root_dir, info ) \
|
|
|
763 ( ( isalpha (root_dir[0]) && \
|
|
|
764 fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \
|
|
|
765 || GetTickCount () - info->timestamp < 10000 )
|
|
|
766
|
|
|
767 /* Cache support functions. */
|
|
|
768
|
|
|
769 /* Simple linked list with linear search is sufficient. */
|
|
|
770 static volume_info_data *volume_cache = NULL;
|
|
|
771
|
|
|
772 static volume_info_data *
|
|
|
773 lookup_volume_info (char * root_dir)
|
|
|
774 {
|
|
|
775 volume_info_data * info;
|
|
|
776
|
|
|
777 for (info = volume_cache; info; info = info->next)
|
|
|
778 if (stricmp (info->root_dir, root_dir) == 0)
|
|
|
779 break;
|
|
|
780 return info;
|
|
|
781 }
|
|
|
782
|
|
|
783 static void
|
|
|
784 add_volume_info (char * root_dir, volume_info_data * info)
|
|
|
785 {
|
|
|
786 info->root_dir = xstrdup (root_dir);
|
|
|
787 info->next = volume_cache;
|
|
|
788 volume_cache = info;
|
|
|
789 }
|
|
|
790
|
|
|
791
|
|
|
792 /* Wrapper for GetVolumeInformation, which uses caching to avoid
|
|
|
793 performance penalty (~2ms on 486 for local drives, 7.5ms for local
|
|
|
794 cdrom drive, ~5-10ms or more for remote drives on LAN). */
|
|
|
795 volume_info_data *
|
|
|
796 GetCachedVolumeInformation (char * root_dir)
|
|
|
797 {
|
|
|
798 volume_info_data * info;
|
|
|
799 char default_root[ MAX_PATH ];
|
|
|
800
|
|
|
801 /* NULL for root_dir means use root from current directory. */
|
|
|
802 if (root_dir == NULL)
|
|
|
803 {
|
|
|
804 if (GetCurrentDirectory (MAX_PATH, default_root) == 0)
|
|
|
805 return NULL;
|
|
|
806 parse_root (default_root, &root_dir);
|
|
|
807 *root_dir = 0;
|
|
|
808 root_dir = default_root;
|
|
|
809 }
|
|
|
810
|
|
|
811 /* Local fixed drives can be cached permanently. Removable drives
|
|
|
812 cannot be cached permanently, since the volume name and serial
|
|
|
813 number (if nothing else) can change. Remote drives should be
|
|
|
814 treated as if they are removable, since there is no sure way to
|
|
|
815 tell whether they are or not. Also, the UNC association of drive
|
|
|
816 letters mapped to remote volumes can be changed at any time (even
|
|
|
817 by other processes) without notice.
|
|
|
818
|
|
|
819 As a compromise, so we can benefit from caching info for remote
|
|
|
820 volumes, we use a simple expiry mechanism to invalidate cache
|
|
|
821 entries that are more than ten seconds old. */
|
|
|
822
|
|
|
823 #if 0
|
|
|
824 /* No point doing this, because WNetGetConnection is even slower than
|
|
|
825 GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW,
|
|
|
826 GetDriveType is about the only call of this type which does not
|
|
|
827 involve network access, and so is extremely quick). */
|
|
|
828
|
|
|
829 /* Map drive letter to UNC if remote. */
|
|
|
830 if ( isalpha( root_dir[0] ) && !fixed[ DRIVE_INDEX( root_dir[0] ) ] )
|
|
|
831 {
|
|
|
832 char remote_name[ 256 ];
|
|
|
833 char drive[3] = { root_dir[0], ':' };
|
|
|
834
|
|
|
835 if (WNetGetConnection (drive, remote_name, sizeof (remote_name))
|
|
|
836 == NO_ERROR)
|
|
|
837 /* do something */ ;
|
|
|
838 }
|
|
|
839 #endif
|
|
|
840
|
|
|
841 info = lookup_volume_info (root_dir);
|
|
|
842
|
|
|
843 if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
|
|
|
844 {
|
|
|
845 char name[ 256 ];
|
|
|
846 DWORD serialnum;
|
|
|
847 DWORD maxcomp;
|
|
|
848 DWORD flags;
|
|
|
849 char type[ 256 ];
|
|
|
850
|
|
|
851 /* Info is not cached, or is stale. */
|
|
|
852 if (!GetVolumeInformation (root_dir,
|
|
|
853 name, sizeof (name),
|
|
|
854 &serialnum,
|
|
|
855 &maxcomp,
|
|
|
856 &flags,
|
|
|
857 type, sizeof (type)))
|
|
|
858 return NULL;
|
|
|
859
|
|
|
860 /* Cache the volume information for future use, overwriting existing
|
|
|
861 entry if present. */
|
|
|
862 if (info == NULL)
|
|
|
863 {
|
|
|
864 info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
|
|
|
865 add_volume_info (root_dir, info);
|
|
|
866 }
|
|
|
867 else
|
|
|
868 {
|
|
|
869 free (info->name);
|
|
|
870 free (info->type);
|
|
|
871 }
|
|
|
872
|
|
|
873 info->name = xstrdup (name);
|
|
|
874 info->serialnum = serialnum;
|
|
|
875 info->maxcomp = maxcomp;
|
|
|
876 info->flags = flags;
|
|
|
877 info->type = xstrdup (type);
|
|
|
878 info->timestamp = GetTickCount ();
|
|
|
879 }
|
|
|
880
|
|
|
881 return info;
|
|
|
882 }
|
|
100
|
883
|
|
|
884 /* Get information on the volume where name is held; set path pointer to
|
|
|
885 start of pathname in name (past UNC header\volume header if present). */
|
|
|
886 int
|
|
|
887 get_volume_info (const char * name, const char ** pPath)
|
|
|
888 {
|
|
|
889 char temp[MAX_PATH];
|
|
|
890 char *rootname = NULL; /* default to current volume */
|
|
209
|
891 volume_info_data * info;
|
|
100
|
892
|
|
|
893 if (name == NULL)
|
|
|
894 return FALSE;
|
|
|
895
|
|
|
896 /* find the root name of the volume if given */
|
|
|
897 if (isalpha (name[0]) && name[1] == ':')
|
|
|
898 {
|
|
|
899 rootname = temp;
|
|
|
900 temp[0] = *name++;
|
|
|
901 temp[1] = *name++;
|
|
|
902 temp[2] = '\\';
|
|
|
903 temp[3] = 0;
|
|
|
904 }
|
|
|
905 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
|
|
|
906 {
|
|
|
907 char *str = temp;
|
|
|
908 int slashes = 4;
|
|
|
909 rootname = temp;
|
|
|
910 do
|
|
|
911 {
|
|
|
912 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
|
|
|
913 break;
|
|
|
914 *str++ = *name++;
|
|
|
915 }
|
|
|
916 while ( *name );
|
|
|
917
|
|
|
918 *str++ = '\\';
|
|
|
919 *str = 0;
|
|
|
920 }
|
|
|
921
|
|
|
922 if (pPath)
|
|
|
923 *pPath = name;
|
|
|
924
|
|
209
|
925 info = GetCachedVolumeInformation (rootname);
|
|
|
926 if (info != NULL)
|
|
100
|
927 {
|
|
209
|
928 /* Set global referenced by other functions. */
|
|
|
929 volume_info = *info;
|
|
100
|
930 return TRUE;
|
|
|
931 }
|
|
|
932 return FALSE;
|
|
|
933 }
|
|
|
934
|
|
|
935 /* Determine if volume is FAT format (ie. only supports short 8.3
|
|
|
936 names); also set path pointer to start of pathname in name. */
|
|
|
937 int
|
|
|
938 is_fat_volume (const char * name, const char ** pPath)
|
|
|
939 {
|
|
|
940 if (get_volume_info (name, pPath))
|
|
|
941 return (volume_info.maxcomp == 12);
|
|
|
942 return FALSE;
|
|
|
943 }
|
|
|
944
|
|
|
945 /* Map filename to a legal 8.3 name if necessary. */
|
|
|
946 const char *
|
|
|
947 map_win32_filename (const char * name, const char ** pPath)
|
|
|
948 {
|
|
|
949 static char shortname[MAX_PATH];
|
|
|
950 char * str = shortname;
|
|
|
951 char c;
|
|
398
|
952 const char * path;
|
|
209
|
953 const char * save_name = name;
|
|
100
|
954
|
|
|
955 if (is_fat_volume (name, &path)) /* truncate to 8.3 */
|
|
|
956 {
|
|
203
|
957 REGISTER int left = 8; /* maximum number of chars in part */
|
|
|
958 REGISTER int extn = 0; /* extension added? */
|
|
|
959 REGISTER int dots = 2; /* maximum number of dots allowed */
|
|
100
|
960
|
|
|
961 while (name < path)
|
|
|
962 *str++ = *name++; /* skip past UNC header */
|
|
|
963
|
|
|
964 while ((c = *name++))
|
|
|
965 {
|
|
|
966 switch ( c )
|
|
|
967 {
|
|
|
968 case '\\':
|
|
|
969 case '/':
|
|
|
970 *str++ = '\\';
|
|
|
971 extn = 0; /* reset extension flags */
|
|
|
972 dots = 2; /* max 2 dots */
|
|
|
973 left = 8; /* max length 8 for main part */
|
|
|
974 break;
|
|
|
975 case ':':
|
|
|
976 *str++ = ':';
|
|
|
977 extn = 0; /* reset extension flags */
|
|
|
978 dots = 2; /* max 2 dots */
|
|
|
979 left = 8; /* max length 8 for main part */
|
|
|
980 break;
|
|
|
981 case '.':
|
|
|
982 if ( dots )
|
|
|
983 {
|
|
|
984 /* Convert path components of the form .xxx to _xxx,
|
|
|
985 but leave . and .. as they are. This allows .emacs
|
|
|
986 to be read as _emacs, for example. */
|
|
|
987
|
|
|
988 if (! *name ||
|
|
|
989 *name == '.' ||
|
|
|
990 IS_DIRECTORY_SEP (*name))
|
|
|
991 {
|
|
|
992 *str++ = '.';
|
|
|
993 dots--;
|
|
|
994 }
|
|
|
995 else
|
|
|
996 {
|
|
|
997 *str++ = '_';
|
|
|
998 left--;
|
|
|
999 dots = 0;
|
|
|
1000 }
|
|
|
1001 }
|
|
|
1002 else if ( !extn )
|
|
|
1003 {
|
|
|
1004 *str++ = '.';
|
|
|
1005 extn = 1; /* we've got an extension */
|
|
|
1006 left = 3; /* 3 chars in extension */
|
|
|
1007 }
|
|
|
1008 else
|
|
|
1009 {
|
|
|
1010 /* any embedded dots after the first are converted to _ */
|
|
|
1011 *str++ = '_';
|
|
|
1012 }
|
|
|
1013 break;
|
|
|
1014 case '~':
|
|
|
1015 case '#': /* don't lose these, they're important */
|
|
|
1016 if ( ! left )
|
|
|
1017 str[-1] = c; /* replace last character of part */
|
|
|
1018 /* FALLTHRU */
|
|
|
1019 default:
|
|
|
1020 if ( left )
|
|
|
1021 {
|
|
|
1022 *str++ = tolower (c); /* map to lower case (looks nicer) */
|
|
|
1023 left--;
|
|
|
1024 dots = 0; /* started a path component */
|
|
|
1025 }
|
|
|
1026 break;
|
|
|
1027 }
|
|
|
1028 }
|
|
|
1029 *str = '\0';
|
|
|
1030 }
|
|
|
1031 else
|
|
|
1032 {
|
|
|
1033 strcpy (shortname, name);
|
|
|
1034 unixtodos_filename (shortname);
|
|
|
1035 }
|
|
|
1036
|
|
|
1037 if (pPath)
|
|
209
|
1038 *pPath = shortname + (path - save_name);
|
|
100
|
1039
|
|
|
1040 return shortname;
|
|
|
1041 }
|
|
|
1042
|
|
|
1043
|
|
209
|
1044 /* Emulate the Unix directory procedures opendir, closedir,
|
|
|
1045 and readdir. We can't use the procedures supplied in sysdep.c,
|
|
|
1046 so we provide them here. */
|
|
|
1047
|
|
|
1048 struct direct dir_static; /* simulated directory contents */
|
|
|
1049 static HANDLE dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1050 static int dir_is_fat;
|
|
|
1051 static char dir_pathname[MAXPATHLEN+1];
|
|
|
1052 static WIN32_FIND_DATA dir_find_data;
|
|
|
1053
|
|
|
1054 DIR *
|
|
288
|
1055 opendir (const char *filename)
|
|
209
|
1056 {
|
|
|
1057 DIR *dirp;
|
|
|
1058
|
|
|
1059 /* Opening is done by FindFirstFile. However, a read is inherent to
|
|
|
1060 this operation, so we defer the open until read time. */
|
|
|
1061
|
|
398
|
1062 if (!(dirp = xnew_and_zero(DIR)))
|
|
209
|
1063 return NULL;
|
|
|
1064 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1065 return NULL;
|
|
|
1066
|
|
|
1067 dirp->dd_fd = 0;
|
|
|
1068 dirp->dd_loc = 0;
|
|
|
1069 dirp->dd_size = 0;
|
|
|
1070
|
|
|
1071 strncpy (dir_pathname, map_win32_filename (filename, NULL), MAXPATHLEN);
|
|
|
1072 dir_pathname[MAXPATHLEN] = '\0';
|
|
|
1073 dir_is_fat = is_fat_volume (filename, NULL);
|
|
|
1074
|
|
|
1075 return dirp;
|
|
|
1076 }
|
|
|
1077
|
|
|
1078 void
|
|
|
1079 closedir (DIR *dirp)
|
|
|
1080 {
|
|
|
1081 /* If we have a find-handle open, close it. */
|
|
|
1082 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1083 {
|
|
|
1084 FindClose (dir_find_handle);
|
|
|
1085 dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1086 }
|
|
398
|
1087 xfree (dirp);
|
|
209
|
1088 }
|
|
|
1089
|
|
|
1090 struct direct *
|
|
|
1091 readdir (DIR *dirp)
|
|
|
1092 {
|
|
|
1093 /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */
|
|
|
1094 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1095 {
|
|
|
1096 char filename[MAXNAMLEN + 3];
|
|
|
1097 int ln;
|
|
|
1098
|
|
|
1099 strcpy (filename, dir_pathname);
|
|
|
1100 ln = strlen (filename) - 1;
|
|
|
1101 if (!IS_DIRECTORY_SEP (filename[ln]))
|
|
|
1102 strcat (filename, "\\");
|
|
|
1103 strcat (filename, "*");
|
|
|
1104
|
|
|
1105 dir_find_handle = FindFirstFile (filename, &dir_find_data);
|
|
|
1106
|
|
|
1107 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1108 return NULL;
|
|
|
1109 }
|
|
|
1110 else
|
|
|
1111 {
|
|
|
1112 if (!FindNextFile (dir_find_handle, &dir_find_data))
|
|
|
1113 return NULL;
|
|
|
1114 }
|
|
|
1115
|
|
|
1116 /* Emacs never uses this value, so don't bother making it match
|
|
|
1117 value returned by stat(). */
|
|
|
1118 dir_static.d_ino = 1;
|
|
|
1119
|
|
|
1120 dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 +
|
|
|
1121 dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
1122
|
|
|
1123 dir_static.d_namlen = strlen (dir_find_data.cFileName);
|
|
|
1124 strcpy (dir_static.d_name, dir_find_data.cFileName);
|
|
|
1125 if (dir_is_fat)
|
|
|
1126 _strlwr (dir_static.d_name);
|
|
263
|
1127 else if (!NILP (Vmswindows_downcase_file_names))
|
|
209
|
1128 {
|
|
|
1129 REGISTER char *p;
|
|
|
1130 for (p = dir_static.d_name; *p; p++)
|
|
|
1131 if (*p >= 'a' && *p <= 'z')
|
|
|
1132 break;
|
|
|
1133 if (!*p)
|
|
|
1134 _strlwr (dir_static.d_name);
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 return &dir_static;
|
|
|
1138 }
|
|
|
1139
|
|
290
|
1140 #if 0
|
|
|
1141 /* #### Have to check if all that sad story about '95 is true - kkm */
|
|
100
|
1142 int
|
|
|
1143 sys_rename (const char * oldname, const char * newname)
|
|
|
1144 {
|
|
|
1145 char temp[MAX_PATH];
|
|
|
1146 DWORD attr;
|
|
|
1147
|
|
|
1148 /* MoveFile on Win95 doesn't correctly change the short file name
|
|
|
1149 alias in a number of circumstances (it is not easy to predict when
|
|
|
1150 just by looking at oldname and newname, unfortunately). In these
|
|
|
1151 cases, renaming through a temporary name avoids the problem.
|
|
|
1152
|
|
|
1153 A second problem on Win95 is that renaming through a temp name when
|
|
|
1154 newname is uppercase fails (the final long name ends up in
|
|
|
1155 lowercase, although the short alias might be uppercase) UNLESS the
|
|
|
1156 long temp name is not 8.3.
|
|
|
1157
|
|
|
1158 So, on Win95 we always rename through a temp name, and we make sure
|
|
|
1159 the temp name has a long extension to ensure correct renaming. */
|
|
|
1160
|
|
|
1161 strcpy (temp, map_win32_filename (oldname, NULL));
|
|
|
1162
|
|
|
1163 if (GetVersion () & 0x80000000)
|
|
|
1164 {
|
|
|
1165 char * p;
|
|
|
1166
|
|
|
1167 if (p = strrchr (temp, '\\'))
|
|
|
1168 p++;
|
|
|
1169 else
|
|
|
1170 p = temp;
|
|
|
1171 /* Force temp name to require a manufactured 8.3 alias - this
|
|
|
1172 seems to make the second rename work properly. */
|
|
209
|
1173 strcpy (p, "_rename_temp.XXXXXX");
|
|
|
1174 sys_mktemp (temp);
|
|
100
|
1175 if (rename (map_win32_filename (oldname, NULL), temp) < 0)
|
|
|
1176 return -1;
|
|
|
1177 }
|
|
|
1178
|
|
380
|
1179 /* Emulate Unix behavior - newname is deleted if it already exists
|
|
100
|
1180 (at least if it is a file; don't do this for directories).
|
|
|
1181 However, don't do this if we are just changing the case of the file
|
|
|
1182 name - we will end up deleting the file we are trying to rename! */
|
|
|
1183 newname = map_win32_filename (newname, NULL);
|
|
209
|
1184
|
|
|
1185 /* TODO: Use GetInformationByHandle (on NT) to ensure newname and temp
|
|
|
1186 do not refer to the same file, eg. through share aliases. */
|
|
100
|
1187 if (stricmp (newname, temp) != 0
|
|
|
1188 && (attr = GetFileAttributes (newname)) != -1
|
|
|
1189 && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0)
|
|
|
1190 {
|
|
|
1191 _chmod (newname, 0666);
|
|
|
1192 _unlink (newname);
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 return rename (temp, newname);
|
|
|
1196 }
|
|
290
|
1197 #endif /* 0 */
|
|
100
|
1198
|
|
|
1199 static FILETIME utc_base_ft;
|
|
398
|
1200 static int init = 0;
|
|
|
1201
|
|
|
1202 #if 0
|
|
|
1203
|
|
100
|
1204 static long double utc_base;
|
|
|
1205
|
|
263
|
1206 time_t
|
|
100
|
1207 convert_time (FILETIME ft)
|
|
|
1208 {
|
|
|
1209 long double ret;
|
|
|
1210
|
|
|
1211 if (!init)
|
|
|
1212 {
|
|
|
1213 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1214 SYSTEMTIME st;
|
|
|
1215
|
|
|
1216 st.wYear = 1970;
|
|
|
1217 st.wMonth = 1;
|
|
|
1218 st.wDay = 1;
|
|
|
1219 st.wHour = 0;
|
|
|
1220 st.wMinute = 0;
|
|
|
1221 st.wSecond = 0;
|
|
|
1222 st.wMilliseconds = 0;
|
|
|
1223
|
|
|
1224 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1225 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1226 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1227 init = 1;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 if (CompareFileTime (&ft, &utc_base_ft) < 0)
|
|
|
1231 return 0;
|
|
|
1232
|
|
|
1233 ret = (long double) ft.dwHighDateTime * 4096 * 1024 * 1024 + ft.dwLowDateTime;
|
|
|
1234 ret -= utc_base;
|
|
|
1235 return (time_t) (ret * 1e-7);
|
|
|
1236 }
|
|
398
|
1237 #else
|
|
|
1238
|
|
404
|
1239 #if defined(__MINGW32__) && CYGWIN_VERSION_DLL_MAJOR <= 21
|
|
|
1240 #define LowPart u.LowPart
|
|
|
1241 #define HighPart u.HighPart
|
|
|
1242 #endif
|
|
|
1243
|
|
398
|
1244 static LARGE_INTEGER utc_base_li;
|
|
|
1245
|
|
|
1246 time_t
|
|
|
1247 convert_time (FILETIME uft)
|
|
|
1248 {
|
|
|
1249 time_t ret;
|
|
|
1250 #ifndef MAXLONGLONG
|
|
|
1251 SYSTEMTIME st;
|
|
|
1252 struct tm t;
|
|
|
1253 FILETIME ft;
|
|
|
1254 TIME_ZONE_INFORMATION tzi;
|
|
|
1255 DWORD tzid;
|
|
|
1256 #else
|
|
|
1257 LARGE_INTEGER lft;
|
|
|
1258 #endif
|
|
|
1259
|
|
|
1260 if (!init)
|
|
|
1261 {
|
|
|
1262 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1263 SYSTEMTIME st;
|
|
|
1264
|
|
|
1265 st.wYear = 1970;
|
|
|
1266 st.wMonth = 1;
|
|
|
1267 st.wDay = 1;
|
|
|
1268 st.wHour = 0;
|
|
|
1269 st.wMinute = 0;
|
|
|
1270 st.wSecond = 0;
|
|
|
1271 st.wMilliseconds = 0;
|
|
|
1272
|
|
|
1273 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1274
|
|
|
1275 utc_base_li.LowPart = utc_base_ft.dwLowDateTime;
|
|
|
1276 utc_base_li.HighPart = utc_base_ft.dwHighDateTime;
|
|
|
1277
|
|
|
1278 init = 1;
|
|
|
1279 }
|
|
|
1280
|
|
|
1281 #ifdef MAXLONGLONG
|
|
|
1282
|
|
|
1283 /* On a compiler that supports long integers, do it the easy way */
|
|
|
1284 lft.LowPart = uft.dwLowDateTime;
|
|
|
1285 lft.HighPart = uft.dwHighDateTime;
|
|
|
1286 ret = (time_t) ((lft.QuadPart - utc_base_li.QuadPart) / 10000000);
|
|
|
1287
|
|
|
1288 #else
|
|
|
1289
|
|
|
1290 /* Do it the hard way using mktime. */
|
|
|
1291 FileTimeToLocalFileTime(&uft, &ft);
|
|
|
1292 FileTimeToSystemTime (&ft, &st);
|
|
|
1293 tzid = GetTimeZoneInformation (&tzi);
|
|
|
1294 t.tm_year = st.wYear - 1900;
|
|
|
1295 t.tm_mon = st.wMonth - 1;
|
|
|
1296 t.tm_mday = st.wDay;
|
|
|
1297 t.tm_hour = st.wHour;
|
|
|
1298 t.tm_min = st.wMinute;
|
|
|
1299 t.tm_sec = st.wSecond;
|
|
|
1300 t.tm_isdst = (tzid == TIME_ZONE_ID_DAYLIGHT);
|
|
|
1301 /* st.wMilliseconds not applicable */
|
|
|
1302 ret = mktime(&t);
|
|
|
1303 if (ret == -1)
|
|
|
1304 {
|
|
|
1305 ret = 0;
|
|
|
1306 }
|
|
|
1307
|
|
|
1308 #endif
|
|
|
1309
|
|
|
1310 return ret;
|
|
|
1311 }
|
|
|
1312 #endif
|
|
404
|
1313 #if defined(__MINGW32__) && CYGWIN_VERSION_DLL_MAJOR <= 21
|
|
|
1314 #undef LowPart
|
|
|
1315 #undef HighPart
|
|
|
1316 #endif
|
|
100
|
1317
|
|
|
1318 #if 0
|
|
|
1319 /* in case we ever have need of this */
|
|
|
1320 void
|
|
|
1321 convert_from_time_t (time_t time, FILETIME * pft)
|
|
|
1322 {
|
|
|
1323 long double tmp;
|
|
|
1324
|
|
|
1325 if (!init)
|
|
|
1326 {
|
|
|
1327 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1328 SYSTEMTIME st;
|
|
|
1329
|
|
|
1330 st.wYear = 1970;
|
|
|
1331 st.wMonth = 1;
|
|
|
1332 st.wDay = 1;
|
|
|
1333 st.wHour = 0;
|
|
|
1334 st.wMinute = 0;
|
|
|
1335 st.wSecond = 0;
|
|
|
1336 st.wMilliseconds = 0;
|
|
|
1337
|
|
|
1338 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1339 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1340 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1341 init = 1;
|
|
|
1342 }
|
|
|
1343
|
|
|
1344 /* time in 100ns units since 1-Jan-1601 */
|
|
|
1345 tmp = (long double) time * 1e7 + utc_base;
|
|
|
1346 pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024));
|
|
|
1347 pft->dwLowDateTime = (DWORD) (tmp - pft->dwHighDateTime);
|
|
|
1348 }
|
|
|
1349 #endif
|
|
|
1350
|
|
209
|
1351 #if 0
|
|
|
1352 /* No reason to keep this; faking inode values either by hashing or even
|
|
|
1353 using the file index from GetInformationByHandle, is not perfect and
|
|
|
1354 so by default Emacs doesn't use the inode values on Windows.
|
|
|
1355 Instead, we now determine file-truename correctly (except for
|
|
|
1356 possible drive aliasing etc). */
|
|
|
1357
|
|
|
1358 /* Modified version of "PJW" algorithm (see the "Dragon" compiler book). */
|
|
100
|
1359 static unsigned
|
|
209
|
1360 hashval (const unsigned char * str)
|
|
100
|
1361 {
|
|
|
1362 unsigned h = 0;
|
|
|
1363 while (*str)
|
|
|
1364 {
|
|
|
1365 h = (h << 4) + *str++;
|
|
209
|
1366 h ^= (h >> 28);
|
|
100
|
1367 }
|
|
|
1368 return h;
|
|
|
1369 }
|
|
|
1370
|
|
|
1371 /* Return the hash value of the canonical pathname, excluding the
|
|
|
1372 drive/UNC header, to get a hopefully unique inode number. */
|
|
209
|
1373 static DWORD
|
|
100
|
1374 generate_inode_val (const char * name)
|
|
|
1375 {
|
|
|
1376 char fullname[ MAX_PATH ];
|
|
|
1377 char * p;
|
|
|
1378 unsigned hash;
|
|
|
1379
|
|
209
|
1380 /* Get the truly canonical filename, if it exists. (Note: this
|
|
380
|
1381 doesn't resolve aliasing due to subst commands, or recognize hard
|
|
209
|
1382 links. */
|
|
|
1383 if (!win32_get_long_filename ((char *)name, fullname, MAX_PATH))
|
|
|
1384 abort ();
|
|
|
1385
|
|
|
1386 parse_root (fullname, &p);
|
|
100
|
1387 /* Normal Win32 filesystems are still case insensitive. */
|
|
|
1388 _strlwr (p);
|
|
209
|
1389 return hashval (p);
|
|
100
|
1390 }
|
|
|
1391
|
|
209
|
1392 #endif
|
|
|
1393
|
|
398
|
1394 /* stat has been fixed since MSVC 5.0.
|
|
|
1395 Oh, and do not encapsulater stat for non-MS compilers, too */
|
|
|
1396 /* #### popineau@ese-metz.fr says they still might be broken.
|
|
|
1397 Oh well... Let's add that `1 ||' condition.... --kkm */
|
|
404
|
1398 /* #### aichner@ecf.teradyne.com reported that with the library
|
|
|
1399 provided stat/fstat, (file-exist "d:\\tmp\\") =>> nil,
|
|
|
1400 (file-exist "d:\\tmp") =>> t, when d:\tmp exists. Whenever
|
|
|
1401 we opt to use non-encapsulated stat(), this should serve as
|
|
|
1402 a compatibility test. --kkm */
|
|
|
1403
|
|
398
|
1404 #if 1 || defined(_MSC_VER) && _MSC_VER < 1100
|
|
|
1405
|
|
|
1406 /* Since stat is encapsulated on Windows NT, we need to encapsulate
|
|
|
1407 the equally broken fstat as well. */
|
|
|
1408 int _cdecl
|
|
|
1409 fstat (int handle, struct stat *buffer)
|
|
|
1410 {
|
|
|
1411 int ret;
|
|
|
1412 BY_HANDLE_FILE_INFORMATION lpFileInfo;
|
|
|
1413 /* Initialize values */
|
|
|
1414 buffer->st_mode = 0;
|
|
|
1415 buffer->st_size = 0;
|
|
|
1416 buffer->st_dev = 0;
|
|
|
1417 buffer->st_rdev = 0;
|
|
|
1418 buffer->st_atime = 0;
|
|
|
1419 buffer->st_ctime = 0;
|
|
|
1420 buffer->st_mtime = 0;
|
|
|
1421 buffer->st_nlink = 0;
|
|
|
1422 ret = GetFileInformationByHandle((HANDLE) _get_osfhandle(handle), &lpFileInfo);
|
|
|
1423 if (!ret)
|
|
|
1424 {
|
|
|
1425 return -1;
|
|
|
1426 }
|
|
|
1427 else
|
|
|
1428 {
|
|
|
1429 buffer->st_mtime = convert_time (lpFileInfo.ftLastWriteTime);
|
|
|
1430 buffer->st_atime = convert_time (lpFileInfo.ftLastAccessTime);
|
|
|
1431 if (buffer->st_atime == 0) buffer->st_atime = buffer->st_mtime;
|
|
|
1432 buffer->st_ctime = convert_time (lpFileInfo.ftCreationTime);
|
|
|
1433 if (buffer->st_ctime == 0) buffer->st_ctime = buffer->st_mtime;
|
|
|
1434 buffer->st_size = lpFileInfo.nFileSizeLow;
|
|
|
1435 buffer->st_nlink = (short) lpFileInfo.nNumberOfLinks;
|
|
|
1436 return 0;
|
|
|
1437 }
|
|
|
1438 }
|
|
|
1439
|
|
100
|
1440 /* MSVC stat function can't cope with UNC names and has other bugs, so
|
|
|
1441 replace it with our own. This also allows us to calculate consistent
|
|
|
1442 inode values without hacks in the main Emacs code. */
|
|
|
1443 int
|
|
|
1444 stat (const char * path, struct stat * buf)
|
|
|
1445 {
|
|
|
1446 char * name;
|
|
|
1447 WIN32_FIND_DATA wfd;
|
|
|
1448 HANDLE fh;
|
|
209
|
1449 DWORD fake_inode;
|
|
100
|
1450 int permission;
|
|
|
1451 int len;
|
|
|
1452 int rootdir = FALSE;
|
|
|
1453
|
|
|
1454 if (path == NULL || buf == NULL)
|
|
|
1455 {
|
|
|
1456 errno = EFAULT;
|
|
|
1457 return -1;
|
|
|
1458 }
|
|
|
1459
|
|
|
1460 name = (char *) map_win32_filename (path, &path);
|
|
|
1461 /* must be valid filename, no wild cards */
|
|
|
1462 if (strchr (name, '*') || strchr (name, '?'))
|
|
|
1463 {
|
|
|
1464 errno = ENOENT;
|
|
|
1465 return -1;
|
|
|
1466 }
|
|
|
1467
|
|
|
1468 /* Remove trailing directory separator, unless name is the root
|
|
|
1469 directory of a drive or UNC volume in which case ensure there
|
|
|
1470 is a trailing separator. */
|
|
|
1471 len = strlen (name);
|
|
|
1472 rootdir = (path >= name + len - 1
|
|
|
1473 && (IS_DIRECTORY_SEP (*path) || *path == 0));
|
|
400
|
1474 name = strcpy ((char *)alloca (len + 2), name);
|
|
100
|
1475
|
|
|
1476 if (rootdir)
|
|
|
1477 {
|
|
|
1478 if (!IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1479 strcat (name, "\\");
|
|
|
1480 if (GetDriveType (name) < 2)
|
|
|
1481 {
|
|
|
1482 errno = ENOENT;
|
|
|
1483 return -1;
|
|
|
1484 }
|
|
|
1485 memset (&wfd, 0, sizeof (wfd));
|
|
|
1486 wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
|
|
|
1487 wfd.ftCreationTime = utc_base_ft;
|
|
|
1488 wfd.ftLastAccessTime = utc_base_ft;
|
|
|
1489 wfd.ftLastWriteTime = utc_base_ft;
|
|
|
1490 strcpy (wfd.cFileName, name);
|
|
|
1491 }
|
|
|
1492 else
|
|
|
1493 {
|
|
|
1494 if (IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1495 name[len - 1] = 0;
|
|
209
|
1496
|
|
|
1497 /* (This is hacky, but helps when doing file completions on
|
|
|
1498 network drives.) Optimize by using information available from
|
|
|
1499 active readdir if possible. */
|
|
|
1500 if (dir_find_handle != INVALID_HANDLE_VALUE &&
|
|
|
1501 (len = strlen (dir_pathname)),
|
|
|
1502 strnicmp (name, dir_pathname, len) == 0 &&
|
|
|
1503 IS_DIRECTORY_SEP (name[len]) &&
|
|
|
1504 stricmp (name + len + 1, dir_static.d_name) == 0)
|
|
|
1505 {
|
|
|
1506 /* This was the last entry returned by readdir. */
|
|
|
1507 wfd = dir_find_data;
|
|
|
1508 }
|
|
|
1509 else
|
|
|
1510 {
|
|
100
|
1511 fh = FindFirstFile (name, &wfd);
|
|
|
1512 if (fh == INVALID_HANDLE_VALUE)
|
|
|
1513 {
|
|
|
1514 errno = ENOENT;
|
|
|
1515 return -1;
|
|
|
1516 }
|
|
|
1517 FindClose (fh);
|
|
|
1518 }
|
|
209
|
1519 }
|
|
100
|
1520
|
|
|
1521 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1522 {
|
|
|
1523 buf->st_mode = _S_IFDIR;
|
|
|
1524 buf->st_nlink = 2; /* doesn't really matter */
|
|
209
|
1525 fake_inode = 0; /* this doesn't either I think */
|
|
100
|
1526 }
|
|
263
|
1527 else if (!NILP (Vmswindows_get_true_file_attributes))
|
|
100
|
1528 {
|
|
380
|
1529 /* This is more accurate in terms of getting the correct number
|
|
|
1530 of links, but is quite slow (it is noticeable when Emacs is
|
|
100
|
1531 making a list of file name completions). */
|
|
|
1532 BY_HANDLE_FILE_INFORMATION info;
|
|
|
1533
|
|
209
|
1534 /* No access rights required to get info. */
|
|
211
|
1535 fh = CreateFile (name, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
|
|
1536 OPEN_EXISTING, 0, NULL);
|
|
100
|
1537
|
|
|
1538 if (GetFileInformationByHandle (fh, &info))
|
|
|
1539 {
|
|
|
1540 switch (GetFileType (fh))
|
|
|
1541 {
|
|
|
1542 case FILE_TYPE_DISK:
|
|
|
1543 buf->st_mode = _S_IFREG;
|
|
|
1544 break;
|
|
|
1545 case FILE_TYPE_PIPE:
|
|
|
1546 buf->st_mode = _S_IFIFO;
|
|
|
1547 break;
|
|
|
1548 case FILE_TYPE_CHAR:
|
|
|
1549 case FILE_TYPE_UNKNOWN:
|
|
|
1550 default:
|
|
|
1551 buf->st_mode = _S_IFCHR;
|
|
|
1552 }
|
|
288
|
1553 buf->st_nlink = (short) info.nNumberOfLinks;
|
|
209
|
1554 /* Might as well use file index to fake inode values, but this
|
|
|
1555 is not guaranteed to be unique unless we keep a handle open
|
|
|
1556 all the time (even then there are situations where it is
|
|
|
1557 not unique). Reputedly, there are at most 48 bits of info
|
|
|
1558 (on NTFS, presumably less on FAT). */
|
|
|
1559 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh;
|
|
100
|
1560 CloseHandle (fh);
|
|
|
1561 }
|
|
|
1562 else
|
|
|
1563 {
|
|
|
1564 errno = EACCES;
|
|
|
1565 return -1;
|
|
|
1566 }
|
|
209
|
1567 }
|
|
|
1568 else
|
|
|
1569 {
|
|
|
1570 /* Don't bother to make this information more accurate. */
|
|
100
|
1571 buf->st_mode = _S_IFREG;
|
|
|
1572 buf->st_nlink = 1;
|
|
209
|
1573 fake_inode = 0;
|
|
|
1574 }
|
|
|
1575
|
|
|
1576 #if 0
|
|
|
1577 /* Not sure if there is any point in this. */
|
|
|
1578 if (!NILP (Vwin32_generate_fake_inodes))
|
|
|
1579 fake_inode = generate_inode_val (name);
|
|
|
1580 else if (fake_inode == 0)
|
|
|
1581 {
|
|
|
1582 /* For want of something better, try to make everything unique. */
|
|
|
1583 static DWORD gen_num = 0;
|
|
|
1584 fake_inode = ++gen_num;
|
|
|
1585 }
|
|
100
|
1586 #endif
|
|
209
|
1587
|
|
288
|
1588 /* #### MSVC defines _ino_t to be short; other libc's might not. */
|
|
|
1589 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16));
|
|
100
|
1590
|
|
|
1591 /* consider files to belong to current user */
|
|
398
|
1592 buf->st_uid = buf->st_gid = nt_fake_unix_uid;
|
|
100
|
1593
|
|
|
1594 /* volume_info is set indirectly by map_win32_filename */
|
|
|
1595 buf->st_dev = volume_info.serialnum;
|
|
|
1596 buf->st_rdev = volume_info.serialnum;
|
|
|
1597
|
|
|
1598 buf->st_size = wfd.nFileSizeLow;
|
|
|
1599
|
|
|
1600 /* Convert timestamps to Unix format. */
|
|
|
1601 buf->st_mtime = convert_time (wfd.ftLastWriteTime);
|
|
|
1602 buf->st_atime = convert_time (wfd.ftLastAccessTime);
|
|
|
1603 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
|
|
|
1604 buf->st_ctime = convert_time (wfd.ftCreationTime);
|
|
|
1605 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
|
|
|
1606
|
|
|
1607 /* determine rwx permissions */
|
|
|
1608 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
|
|
|
1609 permission = _S_IREAD;
|
|
|
1610 else
|
|
|
1611 permission = _S_IREAD | _S_IWRITE;
|
|
|
1612
|
|
|
1613 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1614 permission |= _S_IEXEC;
|
|
|
1615 else
|
|
|
1616 {
|
|
|
1617 char * p = strrchr (name, '.');
|
|
|
1618 if (p != NULL &&
|
|
|
1619 (stricmp (p, ".exe") == 0 ||
|
|
|
1620 stricmp (p, ".com") == 0 ||
|
|
|
1621 stricmp (p, ".bat") == 0 ||
|
|
|
1622 stricmp (p, ".cmd") == 0))
|
|
|
1623 permission |= _S_IEXEC;
|
|
|
1624 }
|
|
|
1625
|
|
|
1626 buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
|
|
|
1627
|
|
|
1628 return 0;
|
|
|
1629 }
|
|
398
|
1630 #endif /* defined(_MSC_VER) && _MSC_VER < 1100 */
|
|
100
|
1631
|
|
|
1632 /* From callproc.c */
|
|
|
1633 extern Lisp_Object Vbinary_process_input;
|
|
|
1634 extern Lisp_Object Vbinary_process_output;
|
|
|
1635
|
|
|
1636 /* Unix pipe() has only one arg */
|
|
|
1637 int
|
|
|
1638 sys_pipe (int * phandles)
|
|
|
1639 {
|
|
|
1640 int rc;
|
|
|
1641 unsigned flags;
|
|
|
1642
|
|
209
|
1643 /* make pipe handles non-inheritable; when we spawn a child, we
|
|
|
1644 replace the relevant handle with an inheritable one. Also put
|
|
|
1645 pipes into binary mode; we will do text mode translation ourselves
|
|
|
1646 if required. */
|
|
|
1647 rc = _pipe (phandles, 0, _O_NOINHERIT | _O_BINARY);
|
|
100
|
1648
|
|
|
1649 if (rc == 0)
|
|
|
1650 {
|
|
|
1651 flags = FILE_PIPE | FILE_READ;
|
|
|
1652 if (!NILP (Vbinary_process_output))
|
|
|
1653 flags |= FILE_BINARY;
|
|
|
1654 fd_info[phandles[0]].flags = flags;
|
|
|
1655
|
|
|
1656 flags = FILE_PIPE | FILE_WRITE;
|
|
|
1657 if (!NILP (Vbinary_process_input))
|
|
|
1658 flags |= FILE_BINARY;
|
|
|
1659 fd_info[phandles[1]].flags = flags;
|
|
|
1660 }
|
|
|
1661
|
|
|
1662 return rc;
|
|
|
1663 }
|
|
|
1664
|
|
|
1665 void
|
|
288
|
1666 term_ntproc (int unused)
|
|
100
|
1667 {
|
|
|
1668 }
|
|
|
1669
|
|
|
1670 void
|
|
404
|
1671 init_ntproc (void)
|
|
100
|
1672 {
|
|
|
1673 /* Initial preparation for subprocess support: replace our standard
|
|
|
1674 handles with non-inheritable versions. */
|
|
|
1675 {
|
|
|
1676 HANDLE parent;
|
|
|
1677 HANDLE stdin_save = INVALID_HANDLE_VALUE;
|
|
|
1678 HANDLE stdout_save = INVALID_HANDLE_VALUE;
|
|
|
1679 HANDLE stderr_save = INVALID_HANDLE_VALUE;
|
|
|
1680
|
|
|
1681 parent = GetCurrentProcess ();
|
|
|
1682
|
|
|
1683 /* ignore errors when duplicating and closing; typically the
|
|
|
1684 handles will be invalid when running as a gui program. */
|
|
|
1685 DuplicateHandle (parent,
|
|
|
1686 GetStdHandle (STD_INPUT_HANDLE),
|
|
|
1687 parent,
|
|
|
1688 &stdin_save,
|
|
|
1689 0,
|
|
|
1690 FALSE,
|
|
|
1691 DUPLICATE_SAME_ACCESS);
|
|
|
1692
|
|
|
1693 DuplicateHandle (parent,
|
|
|
1694 GetStdHandle (STD_OUTPUT_HANDLE),
|
|
|
1695 parent,
|
|
|
1696 &stdout_save,
|
|
|
1697 0,
|
|
|
1698 FALSE,
|
|
|
1699 DUPLICATE_SAME_ACCESS);
|
|
|
1700
|
|
|
1701 DuplicateHandle (parent,
|
|
|
1702 GetStdHandle (STD_ERROR_HANDLE),
|
|
|
1703 parent,
|
|
|
1704 &stderr_save,
|
|
|
1705 0,
|
|
|
1706 FALSE,
|
|
|
1707 DUPLICATE_SAME_ACCESS);
|
|
|
1708
|
|
|
1709 fclose (stdin);
|
|
|
1710 fclose (stdout);
|
|
|
1711 fclose (stderr);
|
|
|
1712
|
|
|
1713 if (stdin_save != INVALID_HANDLE_VALUE)
|
|
|
1714 _open_osfhandle ((long) stdin_save, O_TEXT);
|
|
|
1715 else
|
|
|
1716 _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY);
|
|
209
|
1717 _fdopen (0, "r");
|
|
100
|
1718
|
|
|
1719 if (stdout_save != INVALID_HANDLE_VALUE)
|
|
|
1720 _open_osfhandle ((long) stdout_save, O_TEXT);
|
|
|
1721 else
|
|
|
1722 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
209
|
1723 _fdopen (1, "w");
|
|
100
|
1724
|
|
|
1725 if (stderr_save != INVALID_HANDLE_VALUE)
|
|
|
1726 _open_osfhandle ((long) stderr_save, O_TEXT);
|
|
|
1727 else
|
|
|
1728 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
209
|
1729 _fdopen (2, "w");
|
|
100
|
1730 }
|
|
|
1731
|
|
|
1732 /* unfortunately, atexit depends on implementation of malloc */
|
|
|
1733 /* atexit (term_ntproc); */
|
|
|
1734 signal (SIGABRT, term_ntproc);
|
|
209
|
1735
|
|
|
1736 /* determine which drives are fixed, for GetCachedVolumeInformation */
|
|
|
1737 {
|
|
|
1738 /* GetDriveType must have trailing backslash. */
|
|
|
1739 char drive[] = "A:\\";
|
|
|
1740
|
|
|
1741 /* Loop over all possible drive letters */
|
|
|
1742 while ( *drive <= 'Z' )
|
|
|
1743 {
|
|
|
1744 /* Record if this drive letter refers to a fixed drive. */
|
|
|
1745 fixed_drives[ DRIVE_INDEX (*drive) ] =
|
|
|
1746 (GetDriveType (drive) == DRIVE_FIXED);
|
|
|
1747
|
|
|
1748 (*drive)++;
|
|
|
1749 }
|
|
|
1750 }
|
|
100
|
1751 }
|
|
|
1752 #ifndef HAVE_TTY
|
|
|
1753 Lisp_Object
|
|
|
1754 tty_semi_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1755 Error_behavior errb)
|
|
|
1756 {
|
|
|
1757 return Vstdio_str;
|
|
|
1758 }
|
|
|
1759
|
|
|
1760 Lisp_Object
|
|
|
1761 tty_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1762 Error_behavior errb)
|
|
|
1763 {
|
|
|
1764 return Vstdio_str;
|
|
|
1765 }
|
|
|
1766
|
|
|
1767 Lisp_Object
|
|
|
1768 tty_semi_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1769 Error_behavior errb)
|
|
|
1770 {
|
|
|
1771 return Vstdio_str;
|
|
|
1772 }
|
|
|
1773
|
|
|
1774 Lisp_Object
|
|
|
1775 tty_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1776 Error_behavior errb)
|
|
|
1777 {
|
|
|
1778 return Vstdio_str;
|
|
|
1779 }
|
|
|
1780 #endif
|
|
|
1781
|
|
223
|
1782 /*--------------------------------------------------------------------*/
|
|
|
1783 /* Signal support */
|
|
|
1784 /*--------------------------------------------------------------------*/
|
|
|
1785
|
|
|
1786 /* We need MS-defined signal and raise here */
|
|
|
1787 #undef signal
|
|
|
1788 #undef raise
|
|
|
1789
|
|
|
1790 #define sigmask(nsig) (1U << nsig)
|
|
|
1791
|
|
|
1792 /* We can support as many signals as fit into word */
|
|
|
1793 #define SIG_MAX 32
|
|
|
1794
|
|
|
1795 /* Signal handlers. Initial value = 0 = SIG_DFL */
|
|
|
1796 static void (__cdecl *signal_handlers[SIG_MAX])(int) = {0};
|
|
|
1797
|
|
|
1798 /* Signal block mask: bit set to 1 means blocked */
|
|
|
1799 unsigned signal_block_mask = 0;
|
|
|
1800
|
|
|
1801 /* Signal pending mask: bit set to 1 means sig is pending */
|
|
|
1802 unsigned signal_pending_mask = 0;
|
|
|
1803
|
|
|
1804 msw_sighandler msw_sigset (int nsig, msw_sighandler handler)
|
|
|
1805 {
|
|
|
1806 /* We delegate some signals to the system function */
|
|
|
1807 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
288
|
1808 return signal (nsig, handler);
|
|
223
|
1809
|
|
|
1810 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1811 {
|
|
|
1812 errno = EINVAL;
|
|
288
|
1813 return NULL;
|
|
223
|
1814 }
|
|
|
1815
|
|
|
1816 /* Store handler ptr */
|
|
288
|
1817 {
|
|
|
1818 msw_sighandler old_handler = signal_handlers[nsig];
|
|
|
1819 signal_handlers[nsig] = handler;
|
|
|
1820 return old_handler;
|
|
|
1821 }
|
|
223
|
1822 }
|
|
|
1823
|
|
|
1824 int msw_sighold (int nsig)
|
|
|
1825 {
|
|
|
1826 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1827 return errno = EINVAL;
|
|
|
1828
|
|
|
1829 signal_block_mask |= sigmask(nsig);
|
|
|
1830 return 0;
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 int msw_sigrelse (int nsig)
|
|
|
1834 {
|
|
|
1835 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1836 return errno = EINVAL;
|
|
|
1837
|
|
|
1838 signal_block_mask &= ~sigmask(nsig);
|
|
|
1839
|
|
|
1840 if (signal_pending_mask & sigmask(nsig))
|
|
|
1841 msw_raise (nsig);
|
|
|
1842
|
|
|
1843 return 0;
|
|
|
1844 }
|
|
|
1845
|
|
|
1846 int msw_sigpause (int nsig)
|
|
|
1847 {
|
|
|
1848 /* This is currently not called, because the only
|
|
|
1849 call to sigpause inside XEmacs is with SIGCHLD
|
|
|
1850 parameter. Just in case, we put an assert here,
|
|
|
1851 so anyone who will add a call to sigpause will
|
|
|
1852 be surprised (or surprise someone else...) */
|
|
|
1853 assert (0);
|
|
|
1854 return 0;
|
|
|
1855 }
|
|
|
1856
|
|
|
1857 int msw_raise (int nsig)
|
|
|
1858 {
|
|
|
1859 /* We delegate some raises to the system routine */
|
|
|
1860 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
|
1861 return raise (nsig);
|
|
|
1862
|
|
|
1863 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1864 return errno = EINVAL;
|
|
|
1865
|
|
|
1866 /* If the signal is blocked, remember to issue later */
|
|
|
1867 if (signal_block_mask & sigmask(nsig))
|
|
|
1868 {
|
|
|
1869 signal_pending_mask |= sigmask(nsig);
|
|
|
1870 return 0;
|
|
|
1871 }
|
|
|
1872
|
|
|
1873 if (signal_handlers[nsig] == SIG_IGN)
|
|
|
1874 return 0;
|
|
|
1875
|
|
|
1876 if (signal_handlers[nsig] != SIG_DFL)
|
|
|
1877 {
|
|
|
1878 (*signal_handlers[nsig])(nsig);
|
|
|
1879 return 0;
|
|
|
1880 }
|
|
|
1881
|
|
|
1882 /* Default signal actions */
|
|
|
1883 if (nsig == SIGALRM || nsig == SIGPROF)
|
|
|
1884 exit (3);
|
|
|
1885
|
|
|
1886 /* Other signals are ignored by default */
|
|
398
|
1887 return 0;
|
|
223
|
1888 }
|
|
|
1889
|
|
|
1890 /*--------------------------------------------------------------------*/
|
|
|
1891 /* Async timers */
|
|
|
1892 /*--------------------------------------------------------------------*/
|
|
|
1893
|
|
|
1894 /* We emulate two timers, one for SIGALRM, another for SIGPROF.
|
|
|
1895
|
|
|
1896 itimerproc() function has an implementation limitation: it does
|
|
|
1897 not allow to set *both* interval and period. If an attempt is
|
|
|
1898 made to set both, and then they are unequal, the function
|
|
|
1899 asserts.
|
|
|
1900
|
|
|
1901 Minimum timer resolution on Win32 systems varies, and is greater
|
|
|
1902 than or equal than 1 ms. The resolution is always wrapped not to
|
|
|
1903 attempt to get below the system defined limit.
|
|
|
1904 */
|
|
|
1905
|
|
|
1906 /* Timer precision, denominator of one fraction: for 100 ms
|
|
|
1907 interval, request 10 ms precision
|
|
|
1908 */
|
|
|
1909 const int timer_prec = 10;
|
|
|
1910
|
|
380
|
1911 /* Last itimervals, as set by calls to setitimer */
|
|
223
|
1912 static struct itimerval it_alarm;
|
|
|
1913 static struct itimerval it_prof;
|
|
|
1914
|
|
|
1915 /* Timer IDs as returned by MM */
|
|
|
1916 MMRESULT tid_alarm = 0;
|
|
|
1917 MMRESULT tid_prof = 0;
|
|
|
1918
|
|
|
1919 static void CALLBACK timer_proc (UINT uID, UINT uMsg, DWORD dwUser,
|
|
|
1920 DWORD dw1, DWORD dw2)
|
|
|
1921 {
|
|
|
1922 /* Just raise a signal indicated by dwUser parameter */
|
|
|
1923 msw_raise (dwUser);
|
|
|
1924 }
|
|
|
1925
|
|
|
1926 /* Divide time in ms specified by IT by DENOM. Return 1 ms
|
|
|
1927 if division results in zero */
|
|
|
1928 static UINT period (const struct itimerval* it, UINT denom)
|
|
|
1929 {
|
|
|
1930 static TIMECAPS time_caps;
|
|
|
1931
|
|
|
1932 UINT res;
|
|
|
1933 const struct timeval* tv =
|
|
|
1934 (it->it_value.tv_sec == 0 && it->it_value.tv_usec == 0)
|
|
|
1935 ? &it->it_interval : &it->it_value;
|
|
|
1936
|
|
|
1937 /* Zero means stop timer */
|
|
|
1938 if (tv->tv_sec == 0 && tv->tv_usec == 0)
|
|
|
1939 return 0;
|
|
|
1940
|
|
380
|
1941 /* Convert to ms and divide by denom */
|
|
223
|
1942 res = (tv->tv_sec * 1000 + (tv->tv_usec + 500) / 1000) / denom;
|
|
|
1943
|
|
|
1944 /* Converge to minimum timer resolution */
|
|
|
1945 if (time_caps.wPeriodMin == 0)
|
|
|
1946 timeGetDevCaps (&time_caps, sizeof(time_caps));
|
|
|
1947
|
|
|
1948 if (res < time_caps.wPeriodMin)
|
|
|
1949 res = time_caps.wPeriodMin;
|
|
|
1950
|
|
|
1951 return res;
|
|
|
1952 }
|
|
|
1953
|
|
|
1954 static int setitimer_helper (const struct itimerval* itnew,
|
|
|
1955 struct itimerval* itold, struct itimerval* itcurrent,
|
|
|
1956 MMRESULT* tid, DWORD sigkind)
|
|
|
1957 {
|
|
|
1958 UINT delay, resolution, event_type;
|
|
|
1959
|
|
|
1960 /* First stop the old timer */
|
|
|
1961 if (*tid)
|
|
|
1962 {
|
|
|
1963 timeKillEvent (*tid);
|
|
|
1964 timeEndPeriod (period (itcurrent, timer_prec));
|
|
|
1965 *tid = 0;
|
|
|
1966 }
|
|
|
1967
|
|
|
1968 /* Return old itimerval if requested */
|
|
|
1969 if (itold)
|
|
|
1970 *itold = *itcurrent;
|
|
|
1971
|
|
|
1972 *itcurrent = *itnew;
|
|
|
1973
|
|
|
1974 /* Determine if to start new timer */
|
|
|
1975 delay = period (itnew, 1);
|
|
|
1976 if (delay)
|
|
|
1977 {
|
|
|
1978 resolution = period (itnew, timer_prec);
|
|
|
1979 event_type = (itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
1980 ? TIME_ONESHOT : TIME_PERIODIC;
|
|
|
1981 timeBeginPeriod (resolution);
|
|
|
1982 *tid = timeSetEvent (delay, resolution, timer_proc, sigkind, event_type);
|
|
|
1983 }
|
|
|
1984
|
|
|
1985 return !delay || *tid;
|
|
|
1986 }
|
|
|
1987
|
|
|
1988 int setitimer (int kind, const struct itimerval* itnew,
|
|
|
1989 struct itimerval* itold)
|
|
|
1990 {
|
|
|
1991 /* In this version, both interval and value are allowed
|
|
|
1992 only if they are equal. */
|
|
|
1993 assert ((itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
1994 || (itnew->it_interval.tv_sec == 0 && itnew->it_interval.tv_usec == 0)
|
|
|
1995 || (itnew->it_value.tv_sec == itnew->it_interval.tv_sec &&
|
|
|
1996 itnew->it_value.tv_usec == itnew->it_interval.tv_usec));
|
|
|
1997
|
|
|
1998 if (kind == ITIMER_REAL)
|
|
|
1999 return setitimer_helper (itnew, itold, &it_alarm, &tid_alarm, SIGALRM);
|
|
|
2000 else if (kind == ITIMER_PROF)
|
|
|
2001 return setitimer_helper (itnew, itold, &it_prof, &tid_prof, SIGPROF);
|
|
|
2002 else
|
|
|
2003 return errno = EINVAL;
|
|
|
2004 }
|
|
|
2005
|
|
408
|
2006
|
|
|
2007 /*--------------------------------------------------------------------*/
|
|
|
2008 /* Memory-mapped files */
|
|
|
2009 /*--------------------------------------------------------------------*/
|
|
|
2010
|
|
398
|
2011 int
|
|
|
2012 open_input_file (file_data *p_file, const char *filename)
|
|
|
2013 {
|
|
408
|
2014 /* Synched with FSF 20.6. We fixed some warnings. */
|
|
398
|
2015 HANDLE file;
|
|
|
2016 HANDLE file_mapping;
|
|
|
2017 void *file_base;
|
|
|
2018 DWORD size, upper_size;
|
|
|
2019
|
|
|
2020 file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL,
|
|
|
2021 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
|
|
|
2022 if (file == INVALID_HANDLE_VALUE)
|
|
|
2023 return FALSE;
|
|
|
2024
|
|
|
2025 size = GetFileSize (file, &upper_size);
|
|
|
2026 file_mapping = CreateFileMapping (file, NULL, PAGE_READONLY,
|
|
|
2027 0, size, NULL);
|
|
|
2028 if (!file_mapping)
|
|
|
2029 return FALSE;
|
|
|
2030
|
|
|
2031 file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size);
|
|
|
2032 if (file_base == 0)
|
|
|
2033 return FALSE;
|
|
|
2034
|
|
400
|
2035 p_file->name = (char *)filename;
|
|
398
|
2036 p_file->size = size;
|
|
|
2037 p_file->file = file;
|
|
|
2038 p_file->file_mapping = file_mapping;
|
|
400
|
2039 p_file->file_base = (char *)file_base;
|
|
398
|
2040
|
|
|
2041 return TRUE;
|
|
|
2042 }
|
|
|
2043
|
|
408
|
2044 int
|
|
|
2045 open_output_file (file_data *p_file, const char *filename, unsigned long size)
|
|
|
2046 {
|
|
|
2047 /* Synched with FSF 20.6. We fixed some warnings. */
|
|
|
2048 HANDLE file;
|
|
|
2049 HANDLE file_mapping;
|
|
|
2050 void *file_base;
|
|
|
2051
|
|
|
2052 file = CreateFile (filename, GENERIC_READ | GENERIC_WRITE, 0, NULL,
|
|
|
2053 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
|
|
|
2054 if (file == INVALID_HANDLE_VALUE)
|
|
|
2055 return FALSE;
|
|
|
2056
|
|
|
2057 file_mapping = CreateFileMapping (file, NULL, PAGE_READWRITE,
|
|
|
2058 0, size, NULL);
|
|
|
2059 if (!file_mapping)
|
|
|
2060 return FALSE;
|
|
|
2061
|
|
|
2062 file_base = MapViewOfFile (file_mapping, FILE_MAP_WRITE, 0, 0, size);
|
|
|
2063 if (file_base == NULL)
|
|
|
2064 return FALSE;
|
|
|
2065
|
|
|
2066 p_file->name = filename;
|
|
|
2067 p_file->size = size;
|
|
|
2068 p_file->file = file;
|
|
|
2069 p_file->file_mapping = file_mapping;
|
|
|
2070 p_file->file_base = (char*) file_base;
|
|
|
2071
|
|
|
2072 return TRUE;
|
|
|
2073 }
|
|
|
2074
|
|
|
2075 #if 1 /* !defined(__MINGW32__) */
|
|
|
2076 /* Return pointer to section header for section containing the given
|
|
|
2077 relative virtual address. */
|
|
|
2078 static IMAGE_SECTION_HEADER *
|
|
|
2079 rva_to_section (DWORD rva, IMAGE_NT_HEADERS * nt_header)
|
|
|
2080 {
|
|
|
2081 /* Synched with FSF 20.6. We added MINGW32 stuff. */
|
|
|
2082 PIMAGE_SECTION_HEADER section;
|
|
|
2083 int i;
|
|
|
2084
|
|
|
2085 section = IMAGE_FIRST_SECTION (nt_header);
|
|
|
2086
|
|
|
2087 for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++)
|
|
|
2088 {
|
|
|
2089 /* Some linkers (eg. the NT SDK linker I believe) swapped the
|
|
|
2090 meaning of these two values - or rather, they ignored
|
|
|
2091 VirtualSize entirely and always set it to zero. This affects
|
|
|
2092 some very old exes (eg. gzip dated Dec 1993). Since
|
|
|
2093 mswindows_executable_type relies on this function to work reliably,
|
|
|
2094 we need to cope with this. */
|
|
|
2095 DWORD real_size = max (section->SizeOfRawData,
|
|
|
2096 section->Misc.VirtualSize);
|
|
|
2097 if (rva >= section->VirtualAddress
|
|
|
2098 && rva < section->VirtualAddress + real_size)
|
|
|
2099 return section;
|
|
|
2100 section++;
|
|
|
2101 }
|
|
|
2102 return NULL;
|
|
|
2103 }
|
|
|
2104 #endif
|
|
|
2105
|
|
|
2106 void
|
|
|
2107 mswindows_executable_type (const char * filename, int * is_dos_app,
|
|
|
2108 int * is_cygnus_app)
|
|
|
2109 {
|
|
|
2110 /* Synched with FSF 20.6. We added MINGW32 stuff and casts. */
|
|
|
2111 file_data executable;
|
|
|
2112 char * p;
|
|
|
2113
|
|
|
2114 /* Default values in case we can't tell for sure. */
|
|
|
2115 *is_dos_app = FALSE;
|
|
|
2116 *is_cygnus_app = FALSE;
|
|
|
2117
|
|
|
2118 if (!open_input_file (&executable, filename))
|
|
|
2119 return;
|
|
|
2120
|
|
|
2121 p = strrchr (filename, '.');
|
|
|
2122
|
|
|
2123 /* We can only identify DOS .com programs from the extension. */
|
|
|
2124 if (p && stricmp (p, ".com") == 0)
|
|
|
2125 *is_dos_app = TRUE;
|
|
|
2126 else if (p && (stricmp (p, ".bat") == 0 ||
|
|
|
2127 stricmp (p, ".cmd") == 0))
|
|
|
2128 {
|
|
|
2129 /* A DOS shell script - it appears that CreateProcess is happy to
|
|
|
2130 accept this (somewhat surprisingly); presumably it looks at
|
|
|
2131 COMSPEC to determine what executable to actually invoke.
|
|
|
2132 Therefore, we have to do the same here as well. */
|
|
|
2133 /* Actually, I think it uses the program association for that
|
|
|
2134 extension, which is defined in the registry. */
|
|
|
2135 p = egetenv ("COMSPEC");
|
|
|
2136 if (p)
|
|
|
2137 mswindows_executable_type (p, is_dos_app, is_cygnus_app);
|
|
|
2138 }
|
|
|
2139 else
|
|
|
2140 {
|
|
|
2141 /* Look for DOS .exe signature - if found, we must also check that
|
|
|
2142 it isn't really a 16- or 32-bit Windows exe, since both formats
|
|
|
2143 start with a DOS program stub. Note that 16-bit Windows
|
|
|
2144 executables use the OS/2 1.x format. */
|
|
|
2145
|
|
|
2146 #if 0 /* defined( __MINGW32__ ) */
|
|
|
2147 /* mingw32 doesn't have enough headers to detect cygwin
|
|
|
2148 apps, just do what we can. */
|
|
|
2149 FILHDR * exe_header;
|
|
|
2150
|
|
|
2151 exe_header = (FILHDR*) executable.file_base;
|
|
|
2152 if (exe_header->e_magic != DOSMAGIC)
|
|
|
2153 goto unwind;
|
|
|
2154
|
|
|
2155 if ((char*) exe_header->e_lfanew > (char*) executable.size)
|
|
|
2156 {
|
|
|
2157 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */
|
|
|
2158 *is_dos_app = TRUE;
|
|
|
2159 }
|
|
|
2160 else if (exe_header->nt_signature != NT_SIGNATURE)
|
|
|
2161 {
|
|
|
2162 *is_dos_app = TRUE;
|
|
|
2163 }
|
|
|
2164 #else
|
|
|
2165 IMAGE_DOS_HEADER * dos_header;
|
|
|
2166 IMAGE_NT_HEADERS * nt_header;
|
|
|
2167
|
|
|
2168 dos_header = (PIMAGE_DOS_HEADER) executable.file_base;
|
|
|
2169 if (dos_header->e_magic != IMAGE_DOS_SIGNATURE)
|
|
|
2170 goto unwind;
|
|
|
2171
|
|
|
2172 nt_header = (PIMAGE_NT_HEADERS) ((char*) dos_header + dos_header->e_lfanew);
|
|
|
2173
|
|
|
2174 if ((char*) nt_header > (char*) dos_header + executable.size)
|
|
|
2175 {
|
|
|
2176 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */
|
|
|
2177 *is_dos_app = TRUE;
|
|
|
2178 }
|
|
|
2179 else if (nt_header->Signature != IMAGE_NT_SIGNATURE &&
|
|
|
2180 LOWORD (nt_header->Signature) != IMAGE_OS2_SIGNATURE)
|
|
|
2181 {
|
|
|
2182 *is_dos_app = TRUE;
|
|
|
2183 }
|
|
|
2184 else if (nt_header->Signature == IMAGE_NT_SIGNATURE)
|
|
|
2185 {
|
|
|
2186 /* Look for cygwin.dll in DLL import list. */
|
|
|
2187 IMAGE_DATA_DIRECTORY import_dir =
|
|
|
2188 nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
|
|
|
2189 IMAGE_IMPORT_DESCRIPTOR * imports;
|
|
|
2190 IMAGE_SECTION_HEADER * section;
|
|
|
2191
|
|
|
2192 section = rva_to_section (import_dir.VirtualAddress, nt_header);
|
|
|
2193 imports = (IMAGE_IMPORT_DESCRIPTOR *) RVA_TO_PTR (import_dir.VirtualAddress,
|
|
|
2194 section, executable);
|
|
|
2195
|
|
|
2196 for ( ; imports->Name; imports++)
|
|
|
2197 {
|
|
|
2198 char *dllname = (char*) RVA_TO_PTR (imports->Name, section, executable);
|
|
|
2199
|
|
|
2200 /* The exact name of the cygwin dll has changed with
|
|
|
2201 various releases, but hopefully this will be reasonably
|
|
|
2202 future proof. */
|
|
|
2203 if (strncmp (dllname, "cygwin", 6) == 0)
|
|
|
2204 {
|
|
|
2205 *is_cygnus_app = TRUE;
|
|
|
2206 break;
|
|
|
2207 }
|
|
|
2208 }
|
|
|
2209 }
|
|
|
2210 #endif
|
|
|
2211 }
|
|
|
2212
|
|
|
2213 unwind:
|
|
|
2214 close_file_data (&executable);
|
|
|
2215 }
|
|
|
2216
|
|
398
|
2217 /* Close the system structures associated with the given file. */
|
|
|
2218 void
|
|
|
2219 close_file_data (file_data *p_file)
|
|
|
2220 {
|
|
|
2221 UnmapViewOfFile (p_file->file_base);
|
|
|
2222 CloseHandle (p_file->file_mapping);
|
|
|
2223 CloseHandle (p_file->file);
|
|
|
2224 }
|
|
|
2225
|
|
|
2226 void
|
|
|
2227 vars_of_nt (void)
|
|
|
2228 {
|
|
|
2229 DEFVAR_INT ("nt-fake-unix-uid", &nt_fake_unix_uid /*
|
|
|
2230 *Set uid returned by `user-uid' and `user-real-uid'.
|
|
|
2231 Under NT and 9x, there is no uids, and even no almighty user called root.
|
|
|
2232 By setting this variable, you can have any uid of choice. Default is 0.
|
|
|
2233 Changes to this variable take effect immediately.
|
|
|
2234 */ );
|
|
|
2235 nt_fake_unix_uid = 0;
|
|
|
2236 }
|
|
|
2237
|
|
100
|
2238 /* end of nt.c */
|
