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100
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1 /* Utility and Unix shadow routines for XEmacs on Windows NT.
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2 Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to the Free
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18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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19 02111-1307, USA.
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20
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21
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22 Geoff Voelker (voelker@cs.washington.edu) 7-29-94 */
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23
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24 /* Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> */
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209
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25 /* Sync'ed with Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> */
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26
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290
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27 #include <config.h>
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100
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28
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290
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29 #undef signal
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30 #define getwd _getwd
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31 #include "lisp.h"
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32 #undef getwd
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33
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223
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34 #include "systime.h"
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35 #include "syssignal.h"
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239
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36 #include "sysproc.h"
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398
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37 #include "sysfile.h"
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223
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38
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290
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39 #include <ctype.h>
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40 #include <direct.h>
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41 #include <errno.h>
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42 #include <fcntl.h>
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43 #include <io.h>
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100
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44 #include <pwd.h>
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290
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45 #include <signal.h>
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46 #include <string.h>
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47 #include <stdlib.h>
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48 #include <stdio.h>
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100
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49
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50 #include <windows.h>
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398
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51 #ifndef __MINGW32__
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223
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52 #include <mmsystem.h>
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398
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53 #else
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54 typedef void (CALLBACK TIMECALLBACK)(UINT uTimerID, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2);
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55
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56 typedef TIMECALLBACK FAR *LPTIMECALLBACK;
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57 DWORD WINAPI timeGetTime(void);
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58 MMRESULT WINAPI timeSetEvent(UINT uDelay, UINT uResolution,
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59 LPTIMECALLBACK fptc, DWORD dwUser, UINT fuEvent);
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60 MMRESULT WINAPI timeKillEvent(UINT uTimerID);
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61 MMRESULT WINAPI timeGetDevCaps(TIMECAPS* ptc, UINT cbtc);
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62 MMRESULT WINAPI timeBeginPeriod(UINT uPeriod);
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63 MMRESULT WINAPI timeEndPeriod(UINT uPeriod);
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64 #endif
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100
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65
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66 #include "nt.h"
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67 #include <sys/dir.h>
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68 #include "ntheap.h"
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69
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209
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70
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263
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71 extern Lisp_Object Vmswindows_downcase_file_names;
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72 #if 0
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209
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73 extern Lisp_Object Vwin32_generate_fake_inodes;
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263
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74 #endif
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75 extern Lisp_Object Vmswindows_get_true_file_attributes;
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209
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76
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398
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77 int nt_fake_unix_uid;
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288
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78
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209
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79 static char startup_dir[ MAXPATHLEN ];
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80
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100
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81 /* Get the current working directory. */
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82 char *
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83 getwd (char *dir)
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84 {
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209
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85 #if 0
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100
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86 if (GetCurrentDirectory (MAXPATHLEN, dir) > 0)
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87 return dir;
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88 return NULL;
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209
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89 #else
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90 /* Emacs doesn't actually change directory itself, and we want to
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91 force our real wd to be where emacs.exe is to avoid unnecessary
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92 conflicts when trying to rename or delete directories. */
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93 strcpy (dir, startup_dir);
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94 return dir;
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95 #endif
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100
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96 }
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97
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98 /* Emulate getloadavg. */
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99 int
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100 getloadavg (double loadavg[], int nelem)
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101 {
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102 int i;
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103
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104 /* A faithful emulation is going to have to be saved for a rainy day. */
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105 for (i = 0; i < nelem; i++)
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106 {
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107 loadavg[i] = 0.0;
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108 }
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109 return i;
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110 }
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111
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112 /* Emulate getpwuid, getpwnam and others. */
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113
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114 #define PASSWD_FIELD_SIZE 256
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115
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116 static char the_passwd_name[PASSWD_FIELD_SIZE];
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117 static char the_passwd_passwd[PASSWD_FIELD_SIZE];
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118 static char the_passwd_gecos[PASSWD_FIELD_SIZE];
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119 static char the_passwd_dir[PASSWD_FIELD_SIZE];
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120 static char the_passwd_shell[PASSWD_FIELD_SIZE];
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121
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122 static struct passwd the_passwd =
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123 {
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124 the_passwd_name,
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125 the_passwd_passwd,
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126 0,
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127 0,
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128 0,
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129 the_passwd_gecos,
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130 the_passwd_dir,
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131 the_passwd_shell,
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132 };
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133
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398
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134 uid_t
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100
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135 getuid ()
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398
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136 {
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137 return nt_fake_unix_uid;
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100
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138 }
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139
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398
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140 uid_t
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100
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141 geteuid ()
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142 {
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398
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143 return nt_fake_unix_uid;
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100
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144 }
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145
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398
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146 gid_t
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100
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147 getgid ()
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148 {
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149 return the_passwd.pw_gid;
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150 }
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151
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398
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152 gid_t
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100
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153 getegid ()
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154 {
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155 return getgid ();
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156 }
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157
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158 struct passwd *
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398
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159 getpwuid (uid_t uid)
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100
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160 {
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398
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161 if (uid == nt_fake_unix_uid)
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162 {
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163 the_passwd.pw_gid = the_passwd.pw_uid = uid;
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164 return &the_passwd;
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165 }
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166 else
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167 return NULL;
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100
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168 }
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169
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170 struct passwd *
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288
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171 getpwnam (const char *name)
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100
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172 {
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173 struct passwd *pw;
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174
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175 pw = getpwuid (getuid ());
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176 if (!pw)
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177 return pw;
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178
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179 if (stricmp (name, pw->pw_name))
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180 return NULL;
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181
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182 return pw;
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183 }
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184
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185 void
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186 init_user_info ()
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187 {
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398
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188 /* This code is pretty much of ad hoc nature. There is no unix-like
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189 UIDs under Windows NT. There is no concept of root user, because
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190 all security is ACL-based. Instead, let's use a simple variable,
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191 nt-fake-unix-uid, which would allow the user to have a uid of
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192 choice. --kkm, 02/03/2000 */
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193 #if 0
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100
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194 /* Find the user's real name by opening the process token and
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195 looking up the name associated with the user-sid in that token.
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196
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197 Use the relative portion of the identifier authority value from
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198 the user-sid as the user id value (same for group id using the
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199 primary group sid from the process token). */
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200
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201 char user_sid[256], name[256], domain[256];
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202 DWORD length = sizeof (name), dlength = sizeof (domain), trash;
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203 HANDLE token = NULL;
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204 SID_NAME_USE user_type;
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205
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206 if (OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &token)
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207 && GetTokenInformation (token, TokenUser,
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208 (PVOID) user_sid, sizeof (user_sid), &trash)
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209 && LookupAccountSid (NULL, *((PSID *) user_sid), name, &length,
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210 domain, &dlength, &user_type))
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211 {
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212 strcpy (the_passwd.pw_name, name);
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213 /* Determine a reasonable uid value. */
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214 if (stricmp ("administrator", name) == 0)
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215 {
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216 the_passwd.pw_uid = 0;
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217 the_passwd.pw_gid = 0;
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218 }
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219 else
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220 {
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221 SID_IDENTIFIER_AUTHORITY * pSIA;
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222
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223 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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224 /* I believe the relative portion is the last 4 bytes (of 6)
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225 with msb first. */
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226 the_passwd.pw_uid = ((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 /* restrict to conventional uid range for normal users */
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231 the_passwd.pw_uid = the_passwd.pw_uid % 60001;
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232
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233 /* Get group id */
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234 if (GetTokenInformation (token, TokenPrimaryGroup,
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235 (PVOID) user_sid, sizeof (user_sid), &trash))
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236 {
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237 SID_IDENTIFIER_AUTHORITY * pSIA;
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238
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239 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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240 the_passwd.pw_gid = ((pSIA->Value[2] << 24) +
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241 (pSIA->Value[3] << 16) +
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242 (pSIA->Value[4] << 8) +
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243 (pSIA->Value[5] << 0));
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244 /* I don't know if this is necessary, but for safety... */
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245 the_passwd.pw_gid = the_passwd.pw_gid % 60001;
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246 }
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247 else
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248 the_passwd.pw_gid = the_passwd.pw_uid;
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249 }
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250 }
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251 /* If security calls are not supported (presumably because we
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252 are running under Windows 95), fallback to this. */
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253 else if (GetUserName (name, &length))
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254 {
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255 strcpy (the_passwd.pw_name, name);
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256 if (stricmp ("administrator", name) == 0)
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257 the_passwd.pw_uid = 0;
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258 else
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259 the_passwd.pw_uid = 123;
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260 the_passwd.pw_gid = the_passwd.pw_uid;
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261 }
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262 else
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263 {
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264 strcpy (the_passwd.pw_name, "unknown");
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265 the_passwd.pw_uid = 123;
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266 the_passwd.pw_gid = 123;
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267 }
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268
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398
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269 if (token)
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270 CloseHandle (token);
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271 #else
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272 /* Obtain only logon id here, uid part is moved to getuid */
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273 char name[256];
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274 DWORD length = sizeof (name);
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275 if (GetUserName (name, &length))
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276 strcpy (the_passwd.pw_name, name);
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277 else
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278 strcpy (the_passwd.pw_name, "unknown");
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279 #endif
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280
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100
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281 /* Ensure HOME and SHELL are defined. */
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288
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282 #if 0
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283 /*
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284 * With XEmacs, setting $HOME is deprecated.
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285 */
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100
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286 if (getenv ("HOME") == NULL)
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287 putenv ("HOME=c:/");
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288
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288 #endif
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100
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289 if (getenv ("SHELL") == NULL)
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290 putenv ((GetVersion () & 0x80000000) ? "SHELL=command" : "SHELL=cmd");
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291
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292 /* Set dir and shell from environment variables. */
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288
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293 strcpy (the_passwd.pw_dir, get_home_directory());
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100
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294 strcpy (the_passwd.pw_shell, getenv ("SHELL"));
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295 }
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296
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297 /* Normalize filename by converting all path separators to
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298 the specified separator. Also conditionally convert upper
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299 case path name components to lower case. */
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300
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301 static void
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302 normalize_filename (fp, path_sep)
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203
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303 REGISTER char *fp;
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100
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304 char path_sep;
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305 {
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306 char sep;
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307 char *elem;
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308
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309 /* Always lower-case drive letters a-z, even if the filesystem
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310 preserves case in filenames.
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311 This is so filenames can be compared by string comparison
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312 functions that are case-sensitive. Even case-preserving filesystems
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313 do not distinguish case in drive letters. */
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314 if (fp[1] == ':' && *fp >= 'A' && *fp <= 'Z')
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315 {
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316 *fp += 'a' - 'A';
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317 fp += 2;
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318 }
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319
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263
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320 if (NILP (Vmswindows_downcase_file_names))
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100
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321 {
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322 while (*fp)
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323 {
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324 if (*fp == '/' || *fp == '\\')
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325 *fp = path_sep;
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326 fp++;
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327 }
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328 return;
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329 }
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330
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331 sep = path_sep; /* convert to this path separator */
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332 elem = fp; /* start of current path element */
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333
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334 do {
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335 if (*fp >= 'a' && *fp <= 'z')
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336 elem = 0; /* don't convert this element */
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337
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338 if (*fp == 0 || *fp == ':')
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339 {
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340 sep = *fp; /* restore current separator (or 0) */
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341 *fp = '/'; /* after conversion of this element */
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342 }
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343
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344 if (*fp == '/' || *fp == '\\')
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345 {
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346 if (elem && elem != fp)
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347 {
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348 *fp = 0; /* temporary end of string */
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349 _strlwr (elem); /* while we convert to lower case */
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350 }
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351 *fp = sep; /* convert (or restore) path separator */
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352 elem = fp + 1; /* next element starts after separator */
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353 sep = path_sep;
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354 }
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355 } while (*fp++);
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356 }
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357
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358 /* Destructively turn backslashes into slashes. */
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359 void
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360 dostounix_filename (p)
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203
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361 REGISTER char *p;
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100
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362 {
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363 normalize_filename (p, '/');
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364 }
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365
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366 /* Destructively turn slashes into backslashes. */
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367 void
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368 unixtodos_filename (p)
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203
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369 REGISTER char *p;
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100
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370 {
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371 normalize_filename (p, '\\');
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372 }
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373
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374 /* Remove all CR's that are followed by a LF.
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375 (From msdos.c...probably should figure out a way to share it,
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376 although this code isn't going to ever change.) */
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377 int
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209
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378 crlf_to_lf (n, buf, lf_count)
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203
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379 REGISTER int n;
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380 REGISTER unsigned char *buf;
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209
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381 REGISTER unsigned *lf_count;
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100
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382 {
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383 unsigned char *np = buf;
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384 unsigned char *startp = buf;
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385 unsigned char *endp = buf + n;
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386
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387 if (n == 0)
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388 return n;
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389 while (buf < endp - 1)
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390 {
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209
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391 if (*buf == 0x0a)
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392 (*lf_count)++;
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100
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393 if (*buf == 0x0d)
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394 {
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395 if (*(++buf) != 0x0a)
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396 *np++ = 0x0d;
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397 }
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398 else
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399 *np++ = *buf++;
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400 }
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401 if (buf < endp)
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209
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402 {
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403 if (*buf == 0x0a)
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404 (*lf_count)++;
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100
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405 *np++ = *buf++;
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209
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406 }
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100
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407 return np - startp;
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408 }
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409
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209
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410 /* Parse the root part of file name, if present. Return length and
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411 optionally store pointer to char after root. */
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412 static int
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413 parse_root (char * name, char ** pPath)
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|
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414 {
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415 char * start = name;
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|
|
416
|
|
|
417 if (name == NULL)
|
|
|
418 return 0;
|
|
|
419
|
|
|
420 /* find the root name of the volume if given */
|
|
|
421 if (isalpha (name[0]) && name[1] == ':')
|
|
|
422 {
|
|
|
423 /* skip past drive specifier */
|
|
|
424 name += 2;
|
|
|
425 if (IS_DIRECTORY_SEP (name[0]))
|
|
|
426 name++;
|
|
|
427 }
|
|
|
428 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
|
|
|
429 {
|
|
|
430 int slashes = 2;
|
|
|
431 name += 2;
|
|
|
432 do
|
|
|
433 {
|
|
|
434 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
|
|
|
435 break;
|
|
|
436 name++;
|
|
|
437 }
|
|
|
438 while ( *name );
|
|
|
439 if (IS_DIRECTORY_SEP (name[0]))
|
|
|
440 name++;
|
|
|
441 }
|
|
|
442
|
|
|
443 if (pPath)
|
|
|
444 *pPath = name;
|
|
|
445
|
|
|
446 return name - start;
|
|
|
447 }
|
|
|
448
|
|
|
449 /* Get long base name for name; name is assumed to be absolute. */
|
|
|
450 static int
|
|
|
451 get_long_basename (char * name, char * buf, int size)
|
|
|
452 {
|
|
|
453 WIN32_FIND_DATA find_data;
|
|
|
454 HANDLE dir_handle;
|
|
|
455 int len = 0;
|
|
|
456 #ifdef PIGSFLY
|
|
|
457 char *p;
|
|
|
458
|
|
|
459 /* If the last component of NAME has a wildcard character,
|
|
|
460 return it as the basename. */
|
|
|
461 p = name + strlen (name);
|
|
|
462 while (*p != '\\' && *p != ':' && p > name) p--;
|
|
|
463 if (p > name) p++;
|
|
|
464 if (strchr (p, '*') || strchr (p, '?'))
|
|
|
465 {
|
|
|
466 if ((len = strlen (p)) < size)
|
|
|
467 memcpy (buf, p, len + 1);
|
|
|
468 else
|
|
|
469 len = 0;
|
|
|
470 return len;
|
|
|
471 }
|
|
|
472 #endif
|
|
|
473
|
|
|
474 dir_handle = FindFirstFile (name, &find_data);
|
|
|
475 if (dir_handle != INVALID_HANDLE_VALUE)
|
|
|
476 {
|
|
|
477 if ((len = strlen (find_data.cFileName)) < size)
|
|
|
478 memcpy (buf, find_data.cFileName, len + 1);
|
|
|
479 else
|
|
|
480 len = 0;
|
|
|
481 FindClose (dir_handle);
|
|
|
482 }
|
|
|
483 return len;
|
|
|
484 }
|
|
|
485
|
|
|
486 /* Get long name for file, if possible (assumed to be absolute). */
|
|
|
487 BOOL
|
|
|
488 win32_get_long_filename (char * name, char * buf, int size)
|
|
|
489 {
|
|
|
490 char * o = buf;
|
|
|
491 char * p;
|
|
|
492 char * q;
|
|
|
493 char full[ MAX_PATH ];
|
|
|
494 int len;
|
|
|
495
|
|
|
496 len = strlen (name);
|
|
|
497 if (len >= MAX_PATH)
|
|
|
498 return FALSE;
|
|
|
499
|
|
|
500 /* Use local copy for destructive modification. */
|
|
|
501 memcpy (full, name, len+1);
|
|
|
502 unixtodos_filename (full);
|
|
|
503
|
|
|
504 /* Copy root part verbatim. */
|
|
|
505 len = parse_root (full, &p);
|
|
|
506 memcpy (o, full, len);
|
|
|
507 o += len;
|
|
|
508 size -= len;
|
|
|
509
|
|
|
510 do
|
|
|
511 {
|
|
|
512 q = p;
|
|
|
513 p = strchr (q, '\\');
|
|
|
514 if (p) *p = '\0';
|
|
|
515 len = get_long_basename (full, o, size);
|
|
|
516 if (len > 0)
|
|
|
517 {
|
|
|
518 o += len;
|
|
|
519 size -= len;
|
|
|
520 if (p != NULL)
|
|
|
521 {
|
|
|
522 *p++ = '\\';
|
|
|
523 if (size < 2)
|
|
|
524 return FALSE;
|
|
|
525 *o++ = '\\';
|
|
|
526 size--;
|
|
|
527 *o = '\0';
|
|
|
528 }
|
|
|
529 }
|
|
|
530 else
|
|
|
531 return FALSE;
|
|
|
532 }
|
|
|
533 while (p != NULL && *p);
|
|
|
534
|
|
|
535 return TRUE;
|
|
|
536 }
|
|
|
537
|
|
|
538
|
|
100
|
539 /* Routines that are no-ops on NT but are defined to get Emacs to compile. */
|
|
|
540
|
|
239
|
541 #if 0 /* #### We do not need those, do we? -kkm */
|
|
100
|
542 int
|
|
|
543 unrequest_sigio (void)
|
|
|
544 {
|
|
|
545 return 0;
|
|
|
546 }
|
|
|
547
|
|
|
548 int
|
|
|
549 request_sigio (void)
|
|
|
550 {
|
|
|
551 return 0;
|
|
|
552 }
|
|
239
|
553 #endif /* 0 */
|
|
100
|
554
|
|
213
|
555 #define REG_ROOT "SOFTWARE\\GNU\\XEmacs"
|
|
100
|
556
|
|
|
557 LPBYTE
|
|
|
558 nt_get_resource (key, lpdwtype)
|
|
|
559 char *key;
|
|
|
560 LPDWORD lpdwtype;
|
|
|
561 {
|
|
|
562 LPBYTE lpvalue;
|
|
|
563 HKEY hrootkey = NULL;
|
|
|
564 DWORD cbData;
|
|
|
565
|
|
|
566 /* Check both the current user and the local machine to see if
|
|
|
567 we have any resources. */
|
|
|
568
|
|
|
569 if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
570 {
|
|
|
571 lpvalue = NULL;
|
|
|
572
|
|
|
573 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS
|
|
|
574 && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL
|
|
|
575 && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
576 {
|
|
|
577 return (lpvalue);
|
|
|
578 }
|
|
|
579
|
|
|
580 if (lpvalue) xfree (lpvalue);
|
|
|
581
|
|
|
582 RegCloseKey (hrootkey);
|
|
|
583 }
|
|
|
584
|
|
|
585 if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
586 {
|
|
|
587 lpvalue = NULL;
|
|
|
588
|
|
|
589 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS &&
|
|
|
590 (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL &&
|
|
|
591 RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
592 {
|
|
|
593 return (lpvalue);
|
|
|
594 }
|
|
|
595
|
|
|
596 if (lpvalue) xfree (lpvalue);
|
|
|
597
|
|
|
598 RegCloseKey (hrootkey);
|
|
|
599 }
|
|
|
600
|
|
|
601 return (NULL);
|
|
|
602 }
|
|
|
603
|
|
|
604 void
|
|
|
605 init_environment ()
|
|
|
606 {
|
|
|
607 /* Check for environment variables and use registry if they don't exist */
|
|
|
608 {
|
|
|
609 int i;
|
|
|
610 LPBYTE lpval;
|
|
|
611 DWORD dwType;
|
|
|
612
|
|
|
613 static char * env_vars[] =
|
|
|
614 {
|
|
|
615 "HOME",
|
|
|
616 "emacs_dir",
|
|
|
617 "EMACSLOADPATH",
|
|
298
|
618 "EMACSDEBUGPATHS",
|
|
100
|
619 "SHELL",
|
|
209
|
620 "CMDPROXY",
|
|
100
|
621 "EMACSDATA",
|
|
|
622 "EMACSPATH",
|
|
298
|
623 "EMACSPACKAGEPATH",
|
|
100
|
624 "EMACSLOCKDIR",
|
|
298
|
625 "INFOPATH"
|
|
100
|
626 };
|
|
398
|
627 #ifdef HEAP_IN_DATA
|
|
|
628 cache_system_info ();
|
|
|
629 #endif
|
|
272
|
630 for (i = 0; i < countof (env_vars); i++)
|
|
100
|
631 {
|
|
|
632 if (!getenv (env_vars[i]) &&
|
|
|
633 (lpval = nt_get_resource (env_vars[i], &dwType)) != NULL)
|
|
|
634 {
|
|
|
635 if (dwType == REG_EXPAND_SZ)
|
|
|
636 {
|
|
|
637 char buf1[500], buf2[500];
|
|
|
638
|
|
|
639 ExpandEnvironmentStrings ((LPSTR) lpval, buf1, 500);
|
|
|
640 _snprintf (buf2, 499, "%s=%s", env_vars[i], buf1);
|
|
|
641 putenv (strdup (buf2));
|
|
|
642 }
|
|
|
643 else if (dwType == REG_SZ)
|
|
|
644 {
|
|
|
645 char buf[500];
|
|
|
646
|
|
|
647 _snprintf (buf, 499, "%s=%s", env_vars[i], lpval);
|
|
|
648 putenv (strdup (buf));
|
|
|
649 }
|
|
|
650
|
|
|
651 xfree (lpval);
|
|
|
652 }
|
|
|
653 }
|
|
|
654 }
|
|
|
655
|
|
209
|
656 /* Another special case: on NT, the PATH variable is actually named
|
|
|
657 "Path" although cmd.exe (perhaps NT itself) arranges for
|
|
|
658 environment variable lookup and setting to be case insensitive.
|
|
|
659 However, Emacs assumes a fully case sensitive environment, so we
|
|
|
660 need to change "Path" to "PATH" to match the expectations of
|
|
|
661 various elisp packages. We do this by the sneaky method of
|
|
|
662 modifying the string in the C runtime environ entry.
|
|
|
663
|
|
|
664 The same applies to COMSPEC. */
|
|
|
665 {
|
|
|
666 char ** envp;
|
|
|
667
|
|
|
668 for (envp = environ; *envp; envp++)
|
|
|
669 if (_strnicmp (*envp, "PATH=", 5) == 0)
|
|
|
670 memcpy (*envp, "PATH=", 5);
|
|
|
671 else if (_strnicmp (*envp, "COMSPEC=", 8) == 0)
|
|
|
672 memcpy (*envp, "COMSPEC=", 8);
|
|
|
673 }
|
|
|
674
|
|
|
675 /* Remember the initial working directory for getwd, then make the
|
|
|
676 real wd be the location of emacs.exe to avoid conflicts when
|
|
|
677 renaming or deleting directories. (We also don't call chdir when
|
|
|
678 running subprocesses for the same reason.) */
|
|
|
679 if (!GetCurrentDirectory (MAXPATHLEN, startup_dir))
|
|
|
680 abort ();
|
|
|
681
|
|
|
682 {
|
|
|
683 char *p;
|
|
|
684 char modname[MAX_PATH];
|
|
|
685
|
|
|
686 if (!GetModuleFileName (NULL, modname, MAX_PATH))
|
|
|
687 abort ();
|
|
|
688 if ((p = strrchr (modname, '\\')) == NULL)
|
|
|
689 abort ();
|
|
|
690 *p = 0;
|
|
|
691
|
|
|
692 SetCurrentDirectory (modname);
|
|
|
693 }
|
|
|
694
|
|
100
|
695 init_user_info ();
|
|
|
696 }
|
|
|
697
|
|
|
698 #ifndef HAVE_X_WINDOWS
|
|
|
699 /* X11R6 on NT provides the single parameter version of this command. */
|
|
|
700
|
|
|
701 #include <sys/timeb.h>
|
|
|
702
|
|
|
703 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */
|
|
|
704 void
|
|
|
705 gettimeofday (struct timeval *tv, struct timezone *tz)
|
|
|
706 {
|
|
|
707 struct _timeb tb;
|
|
|
708 _ftime (&tb);
|
|
|
709
|
|
|
710 tv->tv_sec = tb.time;
|
|
|
711 tv->tv_usec = tb.millitm * 1000L;
|
|
|
712 if (tz)
|
|
|
713 {
|
|
|
714 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
|
|
|
715 tz->tz_dsttime = tb.dstflag; /* type of dst correction */
|
|
|
716 }
|
|
|
717 }
|
|
|
718
|
|
|
719 #endif /* HAVE_X_WINDOWS */
|
|
|
720
|
|
|
721 /* ------------------------------------------------------------------------- */
|
|
|
722 /* IO support and wrapper functions for Win32 API. */
|
|
|
723 /* ------------------------------------------------------------------------- */
|
|
|
724
|
|
|
725 /* Place a wrapper around the MSVC version of ctime. It returns NULL
|
|
|
726 on network directories, so we handle that case here.
|
|
|
727 (Ulrich Leodolter, 1/11/95). */
|
|
|
728 char *
|
|
|
729 sys_ctime (const time_t *t)
|
|
|
730 {
|
|
|
731 char *str = (char *) ctime (t);
|
|
|
732 return (str ? str : "Sun Jan 01 00:00:00 1970");
|
|
|
733 }
|
|
|
734
|
|
|
735 /* Emulate sleep...we could have done this with a define, but that
|
|
|
736 would necessitate including windows.h in the files that used it.
|
|
|
737 This is much easier. */
|
|
|
738
|
|
|
739 #ifndef HAVE_X_WINDOWS
|
|
|
740 void
|
|
|
741 sys_sleep (int seconds)
|
|
|
742 {
|
|
|
743 Sleep (seconds * 1000);
|
|
|
744 }
|
|
|
745 #endif
|
|
|
746
|
|
239
|
747 /* #### This is an evil dirty hack. We must get rid of it.
|
|
|
748 Word "munging" is not in XEmacs lexicon. - kkm */
|
|
|
749
|
|
100
|
750 /* Internal MSVC data and functions for low-level descriptor munging */
|
|
|
751 #if (_MSC_VER == 900)
|
|
|
752 extern char _osfile[];
|
|
|
753 #endif
|
|
|
754 extern int __cdecl _set_osfhnd (int fd, long h);
|
|
|
755 extern int __cdecl _free_osfhnd (int fd);
|
|
|
756
|
|
|
757 /* parallel array of private info on file handles */
|
|
|
758 filedesc fd_info [ MAXDESC ];
|
|
|
759
|
|
209
|
760 typedef struct volume_info_data {
|
|
|
761 struct volume_info_data * next;
|
|
|
762
|
|
|
763 /* time when info was obtained */
|
|
|
764 DWORD timestamp;
|
|
|
765
|
|
|
766 /* actual volume info */
|
|
|
767 char * root_dir;
|
|
100
|
768 DWORD serialnum;
|
|
|
769 DWORD maxcomp;
|
|
|
770 DWORD flags;
|
|
209
|
771 char * name;
|
|
|
772 char * type;
|
|
|
773 } volume_info_data;
|
|
|
774
|
|
|
775 /* Global referenced by various functions. */
|
|
|
776 static volume_info_data volume_info;
|
|
|
777
|
|
|
778 /* Vector to indicate which drives are local and fixed (for which cached
|
|
|
779 data never expires). */
|
|
|
780 static BOOL fixed_drives[26];
|
|
|
781
|
|
|
782 /* Consider cached volume information to be stale if older than 10s,
|
|
|
783 at least for non-local drives. Info for fixed drives is never stale. */
|
|
|
784 #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' )
|
|
|
785 #define VOLINFO_STILL_VALID( root_dir, info ) \
|
|
|
786 ( ( isalpha (root_dir[0]) && \
|
|
|
787 fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \
|
|
|
788 || GetTickCount () - info->timestamp < 10000 )
|
|
|
789
|
|
|
790 /* Cache support functions. */
|
|
|
791
|
|
|
792 /* Simple linked list with linear search is sufficient. */
|
|
|
793 static volume_info_data *volume_cache = NULL;
|
|
|
794
|
|
|
795 static volume_info_data *
|
|
|
796 lookup_volume_info (char * root_dir)
|
|
|
797 {
|
|
|
798 volume_info_data * info;
|
|
|
799
|
|
|
800 for (info = volume_cache; info; info = info->next)
|
|
|
801 if (stricmp (info->root_dir, root_dir) == 0)
|
|
|
802 break;
|
|
|
803 return info;
|
|
|
804 }
|
|
|
805
|
|
|
806 static void
|
|
|
807 add_volume_info (char * root_dir, volume_info_data * info)
|
|
|
808 {
|
|
|
809 info->root_dir = xstrdup (root_dir);
|
|
|
810 info->next = volume_cache;
|
|
|
811 volume_cache = info;
|
|
|
812 }
|
|
|
813
|
|
|
814
|
|
|
815 /* Wrapper for GetVolumeInformation, which uses caching to avoid
|
|
|
816 performance penalty (~2ms on 486 for local drives, 7.5ms for local
|
|
|
817 cdrom drive, ~5-10ms or more for remote drives on LAN). */
|
|
|
818 volume_info_data *
|
|
|
819 GetCachedVolumeInformation (char * root_dir)
|
|
|
820 {
|
|
|
821 volume_info_data * info;
|
|
|
822 char default_root[ MAX_PATH ];
|
|
|
823
|
|
|
824 /* NULL for root_dir means use root from current directory. */
|
|
|
825 if (root_dir == NULL)
|
|
|
826 {
|
|
|
827 if (GetCurrentDirectory (MAX_PATH, default_root) == 0)
|
|
|
828 return NULL;
|
|
|
829 parse_root (default_root, &root_dir);
|
|
|
830 *root_dir = 0;
|
|
|
831 root_dir = default_root;
|
|
|
832 }
|
|
|
833
|
|
|
834 /* Local fixed drives can be cached permanently. Removable drives
|
|
|
835 cannot be cached permanently, since the volume name and serial
|
|
|
836 number (if nothing else) can change. Remote drives should be
|
|
|
837 treated as if they are removable, since there is no sure way to
|
|
|
838 tell whether they are or not. Also, the UNC association of drive
|
|
|
839 letters mapped to remote volumes can be changed at any time (even
|
|
|
840 by other processes) without notice.
|
|
|
841
|
|
|
842 As a compromise, so we can benefit from caching info for remote
|
|
|
843 volumes, we use a simple expiry mechanism to invalidate cache
|
|
|
844 entries that are more than ten seconds old. */
|
|
|
845
|
|
|
846 #if 0
|
|
|
847 /* No point doing this, because WNetGetConnection is even slower than
|
|
|
848 GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW,
|
|
|
849 GetDriveType is about the only call of this type which does not
|
|
|
850 involve network access, and so is extremely quick). */
|
|
|
851
|
|
|
852 /* Map drive letter to UNC if remote. */
|
|
|
853 if ( isalpha( root_dir[0] ) && !fixed[ DRIVE_INDEX( root_dir[0] ) ] )
|
|
|
854 {
|
|
|
855 char remote_name[ 256 ];
|
|
|
856 char drive[3] = { root_dir[0], ':' };
|
|
|
857
|
|
|
858 if (WNetGetConnection (drive, remote_name, sizeof (remote_name))
|
|
|
859 == NO_ERROR)
|
|
|
860 /* do something */ ;
|
|
|
861 }
|
|
|
862 #endif
|
|
|
863
|
|
|
864 info = lookup_volume_info (root_dir);
|
|
|
865
|
|
|
866 if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
|
|
|
867 {
|
|
|
868 char name[ 256 ];
|
|
|
869 DWORD serialnum;
|
|
|
870 DWORD maxcomp;
|
|
|
871 DWORD flags;
|
|
|
872 char type[ 256 ];
|
|
|
873
|
|
|
874 /* Info is not cached, or is stale. */
|
|
|
875 if (!GetVolumeInformation (root_dir,
|
|
|
876 name, sizeof (name),
|
|
|
877 &serialnum,
|
|
|
878 &maxcomp,
|
|
|
879 &flags,
|
|
|
880 type, sizeof (type)))
|
|
|
881 return NULL;
|
|
|
882
|
|
|
883 /* Cache the volume information for future use, overwriting existing
|
|
|
884 entry if present. */
|
|
|
885 if (info == NULL)
|
|
|
886 {
|
|
|
887 info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
|
|
|
888 add_volume_info (root_dir, info);
|
|
|
889 }
|
|
|
890 else
|
|
|
891 {
|
|
|
892 free (info->name);
|
|
|
893 free (info->type);
|
|
|
894 }
|
|
|
895
|
|
|
896 info->name = xstrdup (name);
|
|
|
897 info->serialnum = serialnum;
|
|
|
898 info->maxcomp = maxcomp;
|
|
|
899 info->flags = flags;
|
|
|
900 info->type = xstrdup (type);
|
|
|
901 info->timestamp = GetTickCount ();
|
|
|
902 }
|
|
|
903
|
|
|
904 return info;
|
|
|
905 }
|
|
100
|
906
|
|
|
907 /* Get information on the volume where name is held; set path pointer to
|
|
|
908 start of pathname in name (past UNC header\volume header if present). */
|
|
|
909 int
|
|
|
910 get_volume_info (const char * name, const char ** pPath)
|
|
|
911 {
|
|
|
912 char temp[MAX_PATH];
|
|
|
913 char *rootname = NULL; /* default to current volume */
|
|
209
|
914 volume_info_data * info;
|
|
100
|
915
|
|
|
916 if (name == NULL)
|
|
|
917 return FALSE;
|
|
|
918
|
|
|
919 /* find the root name of the volume if given */
|
|
|
920 if (isalpha (name[0]) && name[1] == ':')
|
|
|
921 {
|
|
|
922 rootname = temp;
|
|
|
923 temp[0] = *name++;
|
|
|
924 temp[1] = *name++;
|
|
|
925 temp[2] = '\\';
|
|
|
926 temp[3] = 0;
|
|
|
927 }
|
|
|
928 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
|
|
|
929 {
|
|
|
930 char *str = temp;
|
|
|
931 int slashes = 4;
|
|
|
932 rootname = temp;
|
|
|
933 do
|
|
|
934 {
|
|
|
935 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
|
|
|
936 break;
|
|
|
937 *str++ = *name++;
|
|
|
938 }
|
|
|
939 while ( *name );
|
|
|
940
|
|
|
941 *str++ = '\\';
|
|
|
942 *str = 0;
|
|
|
943 }
|
|
|
944
|
|
|
945 if (pPath)
|
|
|
946 *pPath = name;
|
|
|
947
|
|
209
|
948 info = GetCachedVolumeInformation (rootname);
|
|
|
949 if (info != NULL)
|
|
100
|
950 {
|
|
209
|
951 /* Set global referenced by other functions. */
|
|
|
952 volume_info = *info;
|
|
100
|
953 return TRUE;
|
|
|
954 }
|
|
|
955 return FALSE;
|
|
|
956 }
|
|
|
957
|
|
|
958 /* Determine if volume is FAT format (ie. only supports short 8.3
|
|
|
959 names); also set path pointer to start of pathname in name. */
|
|
|
960 int
|
|
|
961 is_fat_volume (const char * name, const char ** pPath)
|
|
|
962 {
|
|
|
963 if (get_volume_info (name, pPath))
|
|
|
964 return (volume_info.maxcomp == 12);
|
|
|
965 return FALSE;
|
|
|
966 }
|
|
|
967
|
|
|
968 /* Map filename to a legal 8.3 name if necessary. */
|
|
|
969 const char *
|
|
|
970 map_win32_filename (const char * name, const char ** pPath)
|
|
|
971 {
|
|
|
972 static char shortname[MAX_PATH];
|
|
|
973 char * str = shortname;
|
|
|
974 char c;
|
|
398
|
975 const char * path;
|
|
209
|
976 const char * save_name = name;
|
|
100
|
977
|
|
|
978 if (is_fat_volume (name, &path)) /* truncate to 8.3 */
|
|
|
979 {
|
|
203
|
980 REGISTER int left = 8; /* maximum number of chars in part */
|
|
|
981 REGISTER int extn = 0; /* extension added? */
|
|
|
982 REGISTER int dots = 2; /* maximum number of dots allowed */
|
|
100
|
983
|
|
|
984 while (name < path)
|
|
|
985 *str++ = *name++; /* skip past UNC header */
|
|
|
986
|
|
|
987 while ((c = *name++))
|
|
|
988 {
|
|
|
989 switch ( c )
|
|
|
990 {
|
|
|
991 case '\\':
|
|
|
992 case '/':
|
|
|
993 *str++ = '\\';
|
|
|
994 extn = 0; /* reset extension flags */
|
|
|
995 dots = 2; /* max 2 dots */
|
|
|
996 left = 8; /* max length 8 for main part */
|
|
|
997 break;
|
|
|
998 case ':':
|
|
|
999 *str++ = ':';
|
|
|
1000 extn = 0; /* reset extension flags */
|
|
|
1001 dots = 2; /* max 2 dots */
|
|
|
1002 left = 8; /* max length 8 for main part */
|
|
|
1003 break;
|
|
|
1004 case '.':
|
|
|
1005 if ( dots )
|
|
|
1006 {
|
|
|
1007 /* Convert path components of the form .xxx to _xxx,
|
|
|
1008 but leave . and .. as they are. This allows .emacs
|
|
|
1009 to be read as _emacs, for example. */
|
|
|
1010
|
|
|
1011 if (! *name ||
|
|
|
1012 *name == '.' ||
|
|
|
1013 IS_DIRECTORY_SEP (*name))
|
|
|
1014 {
|
|
|
1015 *str++ = '.';
|
|
|
1016 dots--;
|
|
|
1017 }
|
|
|
1018 else
|
|
|
1019 {
|
|
|
1020 *str++ = '_';
|
|
|
1021 left--;
|
|
|
1022 dots = 0;
|
|
|
1023 }
|
|
|
1024 }
|
|
|
1025 else if ( !extn )
|
|
|
1026 {
|
|
|
1027 *str++ = '.';
|
|
|
1028 extn = 1; /* we've got an extension */
|
|
|
1029 left = 3; /* 3 chars in extension */
|
|
|
1030 }
|
|
|
1031 else
|
|
|
1032 {
|
|
|
1033 /* any embedded dots after the first are converted to _ */
|
|
|
1034 *str++ = '_';
|
|
|
1035 }
|
|
|
1036 break;
|
|
|
1037 case '~':
|
|
|
1038 case '#': /* don't lose these, they're important */
|
|
|
1039 if ( ! left )
|
|
|
1040 str[-1] = c; /* replace last character of part */
|
|
|
1041 /* FALLTHRU */
|
|
|
1042 default:
|
|
|
1043 if ( left )
|
|
|
1044 {
|
|
|
1045 *str++ = tolower (c); /* map to lower case (looks nicer) */
|
|
|
1046 left--;
|
|
|
1047 dots = 0; /* started a path component */
|
|
|
1048 }
|
|
|
1049 break;
|
|
|
1050 }
|
|
|
1051 }
|
|
|
1052 *str = '\0';
|
|
|
1053 }
|
|
|
1054 else
|
|
|
1055 {
|
|
|
1056 strcpy (shortname, name);
|
|
|
1057 unixtodos_filename (shortname);
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 if (pPath)
|
|
209
|
1061 *pPath = shortname + (path - save_name);
|
|
100
|
1062
|
|
|
1063 return shortname;
|
|
|
1064 }
|
|
|
1065
|
|
|
1066
|
|
209
|
1067 /* Emulate the Unix directory procedures opendir, closedir,
|
|
|
1068 and readdir. We can't use the procedures supplied in sysdep.c,
|
|
|
1069 so we provide them here. */
|
|
|
1070
|
|
|
1071 struct direct dir_static; /* simulated directory contents */
|
|
|
1072 static HANDLE dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1073 static int dir_is_fat;
|
|
|
1074 static char dir_pathname[MAXPATHLEN+1];
|
|
|
1075 static WIN32_FIND_DATA dir_find_data;
|
|
|
1076
|
|
|
1077 DIR *
|
|
288
|
1078 opendir (const char *filename)
|
|
209
|
1079 {
|
|
|
1080 DIR *dirp;
|
|
|
1081
|
|
|
1082 /* Opening is done by FindFirstFile. However, a read is inherent to
|
|
|
1083 this operation, so we defer the open until read time. */
|
|
|
1084
|
|
398
|
1085 if (!(dirp = xnew_and_zero(DIR)))
|
|
209
|
1086 return NULL;
|
|
|
1087 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1088 return NULL;
|
|
|
1089
|
|
|
1090 dirp->dd_fd = 0;
|
|
|
1091 dirp->dd_loc = 0;
|
|
|
1092 dirp->dd_size = 0;
|
|
|
1093
|
|
|
1094 strncpy (dir_pathname, map_win32_filename (filename, NULL), MAXPATHLEN);
|
|
|
1095 dir_pathname[MAXPATHLEN] = '\0';
|
|
|
1096 dir_is_fat = is_fat_volume (filename, NULL);
|
|
|
1097
|
|
|
1098 return dirp;
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 void
|
|
|
1102 closedir (DIR *dirp)
|
|
|
1103 {
|
|
|
1104 /* If we have a find-handle open, close it. */
|
|
|
1105 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1106 {
|
|
|
1107 FindClose (dir_find_handle);
|
|
|
1108 dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1109 }
|
|
398
|
1110 xfree (dirp);
|
|
209
|
1111 }
|
|
|
1112
|
|
|
1113 struct direct *
|
|
|
1114 readdir (DIR *dirp)
|
|
|
1115 {
|
|
|
1116 /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */
|
|
|
1117 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1118 {
|
|
|
1119 char filename[MAXNAMLEN + 3];
|
|
|
1120 int ln;
|
|
|
1121
|
|
|
1122 strcpy (filename, dir_pathname);
|
|
|
1123 ln = strlen (filename) - 1;
|
|
|
1124 if (!IS_DIRECTORY_SEP (filename[ln]))
|
|
|
1125 strcat (filename, "\\");
|
|
|
1126 strcat (filename, "*");
|
|
|
1127
|
|
|
1128 dir_find_handle = FindFirstFile (filename, &dir_find_data);
|
|
|
1129
|
|
|
1130 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1131 return NULL;
|
|
|
1132 }
|
|
|
1133 else
|
|
|
1134 {
|
|
|
1135 if (!FindNextFile (dir_find_handle, &dir_find_data))
|
|
|
1136 return NULL;
|
|
|
1137 }
|
|
|
1138
|
|
|
1139 /* Emacs never uses this value, so don't bother making it match
|
|
|
1140 value returned by stat(). */
|
|
|
1141 dir_static.d_ino = 1;
|
|
|
1142
|
|
|
1143 dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 +
|
|
|
1144 dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
1145
|
|
|
1146 dir_static.d_namlen = strlen (dir_find_data.cFileName);
|
|
|
1147 strcpy (dir_static.d_name, dir_find_data.cFileName);
|
|
|
1148 if (dir_is_fat)
|
|
|
1149 _strlwr (dir_static.d_name);
|
|
263
|
1150 else if (!NILP (Vmswindows_downcase_file_names))
|
|
209
|
1151 {
|
|
|
1152 REGISTER char *p;
|
|
|
1153 for (p = dir_static.d_name; *p; p++)
|
|
|
1154 if (*p >= 'a' && *p <= 'z')
|
|
|
1155 break;
|
|
|
1156 if (!*p)
|
|
|
1157 _strlwr (dir_static.d_name);
|
|
|
1158 }
|
|
|
1159
|
|
|
1160 return &dir_static;
|
|
|
1161 }
|
|
|
1162
|
|
290
|
1163 #if 0
|
|
|
1164 /* #### Have to check if all that sad story about '95 is true - kkm */
|
|
100
|
1165 int
|
|
|
1166 sys_rename (const char * oldname, const char * newname)
|
|
|
1167 {
|
|
|
1168 char temp[MAX_PATH];
|
|
|
1169 DWORD attr;
|
|
|
1170
|
|
|
1171 /* MoveFile on Win95 doesn't correctly change the short file name
|
|
|
1172 alias in a number of circumstances (it is not easy to predict when
|
|
|
1173 just by looking at oldname and newname, unfortunately). In these
|
|
|
1174 cases, renaming through a temporary name avoids the problem.
|
|
|
1175
|
|
|
1176 A second problem on Win95 is that renaming through a temp name when
|
|
|
1177 newname is uppercase fails (the final long name ends up in
|
|
|
1178 lowercase, although the short alias might be uppercase) UNLESS the
|
|
|
1179 long temp name is not 8.3.
|
|
|
1180
|
|
|
1181 So, on Win95 we always rename through a temp name, and we make sure
|
|
|
1182 the temp name has a long extension to ensure correct renaming. */
|
|
|
1183
|
|
|
1184 strcpy (temp, map_win32_filename (oldname, NULL));
|
|
|
1185
|
|
|
1186 if (GetVersion () & 0x80000000)
|
|
|
1187 {
|
|
|
1188 char * p;
|
|
|
1189
|
|
|
1190 if (p = strrchr (temp, '\\'))
|
|
|
1191 p++;
|
|
|
1192 else
|
|
|
1193 p = temp;
|
|
|
1194 /* Force temp name to require a manufactured 8.3 alias - this
|
|
|
1195 seems to make the second rename work properly. */
|
|
209
|
1196 strcpy (p, "_rename_temp.XXXXXX");
|
|
|
1197 sys_mktemp (temp);
|
|
100
|
1198 if (rename (map_win32_filename (oldname, NULL), temp) < 0)
|
|
|
1199 return -1;
|
|
|
1200 }
|
|
|
1201
|
|
380
|
1202 /* Emulate Unix behavior - newname is deleted if it already exists
|
|
100
|
1203 (at least if it is a file; don't do this for directories).
|
|
|
1204 However, don't do this if we are just changing the case of the file
|
|
|
1205 name - we will end up deleting the file we are trying to rename! */
|
|
|
1206 newname = map_win32_filename (newname, NULL);
|
|
209
|
1207
|
|
|
1208 /* TODO: Use GetInformationByHandle (on NT) to ensure newname and temp
|
|
|
1209 do not refer to the same file, eg. through share aliases. */
|
|
100
|
1210 if (stricmp (newname, temp) != 0
|
|
|
1211 && (attr = GetFileAttributes (newname)) != -1
|
|
|
1212 && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0)
|
|
|
1213 {
|
|
|
1214 _chmod (newname, 0666);
|
|
|
1215 _unlink (newname);
|
|
|
1216 }
|
|
|
1217
|
|
|
1218 return rename (temp, newname);
|
|
|
1219 }
|
|
290
|
1220 #endif /* 0 */
|
|
100
|
1221
|
|
|
1222 static FILETIME utc_base_ft;
|
|
398
|
1223 static int init = 0;
|
|
|
1224
|
|
|
1225 #if 0
|
|
|
1226
|
|
100
|
1227 static long double utc_base;
|
|
|
1228
|
|
263
|
1229 time_t
|
|
100
|
1230 convert_time (FILETIME ft)
|
|
|
1231 {
|
|
|
1232 long double ret;
|
|
|
1233
|
|
|
1234 if (!init)
|
|
|
1235 {
|
|
|
1236 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1237 SYSTEMTIME st;
|
|
|
1238
|
|
|
1239 st.wYear = 1970;
|
|
|
1240 st.wMonth = 1;
|
|
|
1241 st.wDay = 1;
|
|
|
1242 st.wHour = 0;
|
|
|
1243 st.wMinute = 0;
|
|
|
1244 st.wSecond = 0;
|
|
|
1245 st.wMilliseconds = 0;
|
|
|
1246
|
|
|
1247 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1248 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1249 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1250 init = 1;
|
|
|
1251 }
|
|
|
1252
|
|
|
1253 if (CompareFileTime (&ft, &utc_base_ft) < 0)
|
|
|
1254 return 0;
|
|
|
1255
|
|
|
1256 ret = (long double) ft.dwHighDateTime * 4096 * 1024 * 1024 + ft.dwLowDateTime;
|
|
|
1257 ret -= utc_base;
|
|
|
1258 return (time_t) (ret * 1e-7);
|
|
|
1259 }
|
|
398
|
1260 #else
|
|
|
1261
|
|
|
1262 static LARGE_INTEGER utc_base_li;
|
|
|
1263
|
|
|
1264 time_t
|
|
|
1265 convert_time (FILETIME uft)
|
|
|
1266 {
|
|
|
1267 time_t ret;
|
|
|
1268 #ifndef MAXLONGLONG
|
|
|
1269 SYSTEMTIME st;
|
|
|
1270 struct tm t;
|
|
|
1271 FILETIME ft;
|
|
|
1272 TIME_ZONE_INFORMATION tzi;
|
|
|
1273 DWORD tzid;
|
|
|
1274 #else
|
|
|
1275 LARGE_INTEGER lft;
|
|
|
1276 #endif
|
|
|
1277
|
|
|
1278 if (!init)
|
|
|
1279 {
|
|
|
1280 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1281 SYSTEMTIME st;
|
|
|
1282
|
|
|
1283 st.wYear = 1970;
|
|
|
1284 st.wMonth = 1;
|
|
|
1285 st.wDay = 1;
|
|
|
1286 st.wHour = 0;
|
|
|
1287 st.wMinute = 0;
|
|
|
1288 st.wSecond = 0;
|
|
|
1289 st.wMilliseconds = 0;
|
|
|
1290
|
|
|
1291 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1292
|
|
|
1293 utc_base_li.LowPart = utc_base_ft.dwLowDateTime;
|
|
|
1294 utc_base_li.HighPart = utc_base_ft.dwHighDateTime;
|
|
|
1295
|
|
|
1296 init = 1;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 #ifdef MAXLONGLONG
|
|
|
1300
|
|
|
1301 /* On a compiler that supports long integers, do it the easy way */
|
|
|
1302 lft.LowPart = uft.dwLowDateTime;
|
|
|
1303 lft.HighPart = uft.dwHighDateTime;
|
|
|
1304 ret = (time_t) ((lft.QuadPart - utc_base_li.QuadPart) / 10000000);
|
|
|
1305
|
|
|
1306 #else
|
|
|
1307
|
|
|
1308 /* Do it the hard way using mktime. */
|
|
|
1309 FileTimeToLocalFileTime(&uft, &ft);
|
|
|
1310 FileTimeToSystemTime (&ft, &st);
|
|
|
1311 tzid = GetTimeZoneInformation (&tzi);
|
|
|
1312 t.tm_year = st.wYear - 1900;
|
|
|
1313 t.tm_mon = st.wMonth - 1;
|
|
|
1314 t.tm_mday = st.wDay;
|
|
|
1315 t.tm_hour = st.wHour;
|
|
|
1316 t.tm_min = st.wMinute;
|
|
|
1317 t.tm_sec = st.wSecond;
|
|
|
1318 t.tm_isdst = (tzid == TIME_ZONE_ID_DAYLIGHT);
|
|
|
1319 /* st.wMilliseconds not applicable */
|
|
|
1320 ret = mktime(&t);
|
|
|
1321 if (ret == -1)
|
|
|
1322 {
|
|
|
1323 ret = 0;
|
|
|
1324 }
|
|
|
1325
|
|
|
1326 #endif
|
|
|
1327
|
|
|
1328 return ret;
|
|
|
1329 }
|
|
|
1330 #endif
|
|
100
|
1331
|
|
|
1332 #if 0
|
|
|
1333 /* in case we ever have need of this */
|
|
|
1334 void
|
|
|
1335 convert_from_time_t (time_t time, FILETIME * pft)
|
|
|
1336 {
|
|
|
1337 long double tmp;
|
|
|
1338
|
|
|
1339 if (!init)
|
|
|
1340 {
|
|
|
1341 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1342 SYSTEMTIME st;
|
|
|
1343
|
|
|
1344 st.wYear = 1970;
|
|
|
1345 st.wMonth = 1;
|
|
|
1346 st.wDay = 1;
|
|
|
1347 st.wHour = 0;
|
|
|
1348 st.wMinute = 0;
|
|
|
1349 st.wSecond = 0;
|
|
|
1350 st.wMilliseconds = 0;
|
|
|
1351
|
|
|
1352 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1353 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1354 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1355 init = 1;
|
|
|
1356 }
|
|
|
1357
|
|
|
1358 /* time in 100ns units since 1-Jan-1601 */
|
|
|
1359 tmp = (long double) time * 1e7 + utc_base;
|
|
|
1360 pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024));
|
|
|
1361 pft->dwLowDateTime = (DWORD) (tmp - pft->dwHighDateTime);
|
|
|
1362 }
|
|
|
1363 #endif
|
|
|
1364
|
|
209
|
1365 #if 0
|
|
|
1366 /* No reason to keep this; faking inode values either by hashing or even
|
|
|
1367 using the file index from GetInformationByHandle, is not perfect and
|
|
|
1368 so by default Emacs doesn't use the inode values on Windows.
|
|
|
1369 Instead, we now determine file-truename correctly (except for
|
|
|
1370 possible drive aliasing etc). */
|
|
|
1371
|
|
|
1372 /* Modified version of "PJW" algorithm (see the "Dragon" compiler book). */
|
|
100
|
1373 static unsigned
|
|
209
|
1374 hashval (const unsigned char * str)
|
|
100
|
1375 {
|
|
|
1376 unsigned h = 0;
|
|
|
1377 while (*str)
|
|
|
1378 {
|
|
|
1379 h = (h << 4) + *str++;
|
|
209
|
1380 h ^= (h >> 28);
|
|
100
|
1381 }
|
|
|
1382 return h;
|
|
|
1383 }
|
|
|
1384
|
|
|
1385 /* Return the hash value of the canonical pathname, excluding the
|
|
|
1386 drive/UNC header, to get a hopefully unique inode number. */
|
|
209
|
1387 static DWORD
|
|
100
|
1388 generate_inode_val (const char * name)
|
|
|
1389 {
|
|
|
1390 char fullname[ MAX_PATH ];
|
|
|
1391 char * p;
|
|
|
1392 unsigned hash;
|
|
|
1393
|
|
209
|
1394 /* Get the truly canonical filename, if it exists. (Note: this
|
|
380
|
1395 doesn't resolve aliasing due to subst commands, or recognize hard
|
|
209
|
1396 links. */
|
|
|
1397 if (!win32_get_long_filename ((char *)name, fullname, MAX_PATH))
|
|
|
1398 abort ();
|
|
|
1399
|
|
|
1400 parse_root (fullname, &p);
|
|
100
|
1401 /* Normal Win32 filesystems are still case insensitive. */
|
|
|
1402 _strlwr (p);
|
|
209
|
1403 return hashval (p);
|
|
100
|
1404 }
|
|
|
1405
|
|
209
|
1406 #endif
|
|
|
1407
|
|
398
|
1408 /* stat has been fixed since MSVC 5.0.
|
|
|
1409 Oh, and do not encapsulater stat for non-MS compilers, too */
|
|
|
1410 /* #### popineau@ese-metz.fr says they still might be broken.
|
|
|
1411 Oh well... Let's add that `1 ||' condition.... --kkm */
|
|
|
1412 #if 1 || defined(_MSC_VER) && _MSC_VER < 1100
|
|
|
1413
|
|
|
1414 /* Since stat is encapsulated on Windows NT, we need to encapsulate
|
|
|
1415 the equally broken fstat as well. */
|
|
|
1416 int _cdecl
|
|
|
1417 fstat (int handle, struct stat *buffer)
|
|
|
1418 {
|
|
|
1419 int ret;
|
|
|
1420 BY_HANDLE_FILE_INFORMATION lpFileInfo;
|
|
|
1421 /* Initialize values */
|
|
|
1422 buffer->st_mode = 0;
|
|
|
1423 buffer->st_size = 0;
|
|
|
1424 buffer->st_dev = 0;
|
|
|
1425 buffer->st_rdev = 0;
|
|
|
1426 buffer->st_atime = 0;
|
|
|
1427 buffer->st_ctime = 0;
|
|
|
1428 buffer->st_mtime = 0;
|
|
|
1429 buffer->st_nlink = 0;
|
|
|
1430 ret = GetFileInformationByHandle((HANDLE) _get_osfhandle(handle), &lpFileInfo);
|
|
|
1431 if (!ret)
|
|
|
1432 {
|
|
|
1433 return -1;
|
|
|
1434 }
|
|
|
1435 else
|
|
|
1436 {
|
|
|
1437 buffer->st_mtime = convert_time (lpFileInfo.ftLastWriteTime);
|
|
|
1438 buffer->st_atime = convert_time (lpFileInfo.ftLastAccessTime);
|
|
|
1439 if (buffer->st_atime == 0) buffer->st_atime = buffer->st_mtime;
|
|
|
1440 buffer->st_ctime = convert_time (lpFileInfo.ftCreationTime);
|
|
|
1441 if (buffer->st_ctime == 0) buffer->st_ctime = buffer->st_mtime;
|
|
|
1442 buffer->st_size = lpFileInfo.nFileSizeLow;
|
|
|
1443 buffer->st_nlink = (short) lpFileInfo.nNumberOfLinks;
|
|
|
1444 return 0;
|
|
|
1445 }
|
|
|
1446 }
|
|
|
1447
|
|
100
|
1448 /* MSVC stat function can't cope with UNC names and has other bugs, so
|
|
|
1449 replace it with our own. This also allows us to calculate consistent
|
|
|
1450 inode values without hacks in the main Emacs code. */
|
|
|
1451 int
|
|
|
1452 stat (const char * path, struct stat * buf)
|
|
|
1453 {
|
|
|
1454 char * name;
|
|
|
1455 WIN32_FIND_DATA wfd;
|
|
|
1456 HANDLE fh;
|
|
209
|
1457 DWORD fake_inode;
|
|
100
|
1458 int permission;
|
|
|
1459 int len;
|
|
|
1460 int rootdir = FALSE;
|
|
|
1461
|
|
|
1462 if (path == NULL || buf == NULL)
|
|
|
1463 {
|
|
|
1464 errno = EFAULT;
|
|
|
1465 return -1;
|
|
|
1466 }
|
|
|
1467
|
|
|
1468 name = (char *) map_win32_filename (path, &path);
|
|
|
1469 /* must be valid filename, no wild cards */
|
|
|
1470 if (strchr (name, '*') || strchr (name, '?'))
|
|
|
1471 {
|
|
|
1472 errno = ENOENT;
|
|
|
1473 return -1;
|
|
|
1474 }
|
|
|
1475
|
|
|
1476 /* Remove trailing directory separator, unless name is the root
|
|
|
1477 directory of a drive or UNC volume in which case ensure there
|
|
|
1478 is a trailing separator. */
|
|
|
1479 len = strlen (name);
|
|
|
1480 rootdir = (path >= name + len - 1
|
|
|
1481 && (IS_DIRECTORY_SEP (*path) || *path == 0));
|
|
|
1482 name = strcpy (alloca (len + 2), name);
|
|
|
1483
|
|
|
1484 if (rootdir)
|
|
|
1485 {
|
|
|
1486 if (!IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1487 strcat (name, "\\");
|
|
|
1488 if (GetDriveType (name) < 2)
|
|
|
1489 {
|
|
|
1490 errno = ENOENT;
|
|
|
1491 return -1;
|
|
|
1492 }
|
|
|
1493 memset (&wfd, 0, sizeof (wfd));
|
|
|
1494 wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
|
|
|
1495 wfd.ftCreationTime = utc_base_ft;
|
|
|
1496 wfd.ftLastAccessTime = utc_base_ft;
|
|
|
1497 wfd.ftLastWriteTime = utc_base_ft;
|
|
|
1498 strcpy (wfd.cFileName, name);
|
|
|
1499 }
|
|
|
1500 else
|
|
|
1501 {
|
|
|
1502 if (IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1503 name[len - 1] = 0;
|
|
209
|
1504
|
|
|
1505 /* (This is hacky, but helps when doing file completions on
|
|
|
1506 network drives.) Optimize by using information available from
|
|
|
1507 active readdir if possible. */
|
|
|
1508 if (dir_find_handle != INVALID_HANDLE_VALUE &&
|
|
|
1509 (len = strlen (dir_pathname)),
|
|
|
1510 strnicmp (name, dir_pathname, len) == 0 &&
|
|
|
1511 IS_DIRECTORY_SEP (name[len]) &&
|
|
|
1512 stricmp (name + len + 1, dir_static.d_name) == 0)
|
|
|
1513 {
|
|
|
1514 /* This was the last entry returned by readdir. */
|
|
|
1515 wfd = dir_find_data;
|
|
|
1516 }
|
|
|
1517 else
|
|
|
1518 {
|
|
100
|
1519 fh = FindFirstFile (name, &wfd);
|
|
|
1520 if (fh == INVALID_HANDLE_VALUE)
|
|
|
1521 {
|
|
|
1522 errno = ENOENT;
|
|
|
1523 return -1;
|
|
|
1524 }
|
|
|
1525 FindClose (fh);
|
|
|
1526 }
|
|
209
|
1527 }
|
|
100
|
1528
|
|
|
1529 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1530 {
|
|
|
1531 buf->st_mode = _S_IFDIR;
|
|
|
1532 buf->st_nlink = 2; /* doesn't really matter */
|
|
209
|
1533 fake_inode = 0; /* this doesn't either I think */
|
|
100
|
1534 }
|
|
263
|
1535 else if (!NILP (Vmswindows_get_true_file_attributes))
|
|
100
|
1536 {
|
|
380
|
1537 /* This is more accurate in terms of getting the correct number
|
|
|
1538 of links, but is quite slow (it is noticeable when Emacs is
|
|
100
|
1539 making a list of file name completions). */
|
|
|
1540 BY_HANDLE_FILE_INFORMATION info;
|
|
|
1541
|
|
209
|
1542 /* No access rights required to get info. */
|
|
211
|
1543 fh = CreateFile (name, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
|
|
1544 OPEN_EXISTING, 0, NULL);
|
|
100
|
1545
|
|
|
1546 if (GetFileInformationByHandle (fh, &info))
|
|
|
1547 {
|
|
|
1548 switch (GetFileType (fh))
|
|
|
1549 {
|
|
|
1550 case FILE_TYPE_DISK:
|
|
|
1551 buf->st_mode = _S_IFREG;
|
|
|
1552 break;
|
|
|
1553 case FILE_TYPE_PIPE:
|
|
|
1554 buf->st_mode = _S_IFIFO;
|
|
|
1555 break;
|
|
|
1556 case FILE_TYPE_CHAR:
|
|
|
1557 case FILE_TYPE_UNKNOWN:
|
|
|
1558 default:
|
|
|
1559 buf->st_mode = _S_IFCHR;
|
|
|
1560 }
|
|
288
|
1561 buf->st_nlink = (short) info.nNumberOfLinks;
|
|
209
|
1562 /* Might as well use file index to fake inode values, but this
|
|
|
1563 is not guaranteed to be unique unless we keep a handle open
|
|
|
1564 all the time (even then there are situations where it is
|
|
|
1565 not unique). Reputedly, there are at most 48 bits of info
|
|
|
1566 (on NTFS, presumably less on FAT). */
|
|
|
1567 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh;
|
|
100
|
1568 CloseHandle (fh);
|
|
|
1569 }
|
|
|
1570 else
|
|
|
1571 {
|
|
|
1572 errno = EACCES;
|
|
|
1573 return -1;
|
|
|
1574 }
|
|
209
|
1575 }
|
|
|
1576 else
|
|
|
1577 {
|
|
|
1578 /* Don't bother to make this information more accurate. */
|
|
100
|
1579 buf->st_mode = _S_IFREG;
|
|
|
1580 buf->st_nlink = 1;
|
|
209
|
1581 fake_inode = 0;
|
|
|
1582 }
|
|
|
1583
|
|
|
1584 #if 0
|
|
|
1585 /* Not sure if there is any point in this. */
|
|
|
1586 if (!NILP (Vwin32_generate_fake_inodes))
|
|
|
1587 fake_inode = generate_inode_val (name);
|
|
|
1588 else if (fake_inode == 0)
|
|
|
1589 {
|
|
|
1590 /* For want of something better, try to make everything unique. */
|
|
|
1591 static DWORD gen_num = 0;
|
|
|
1592 fake_inode = ++gen_num;
|
|
|
1593 }
|
|
100
|
1594 #endif
|
|
209
|
1595
|
|
288
|
1596 /* #### MSVC defines _ino_t to be short; other libc's might not. */
|
|
|
1597 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16));
|
|
100
|
1598
|
|
|
1599 /* consider files to belong to current user */
|
|
398
|
1600 buf->st_uid = buf->st_gid = nt_fake_unix_uid;
|
|
100
|
1601
|
|
|
1602 /* volume_info is set indirectly by map_win32_filename */
|
|
|
1603 buf->st_dev = volume_info.serialnum;
|
|
|
1604 buf->st_rdev = volume_info.serialnum;
|
|
|
1605
|
|
|
1606 buf->st_size = wfd.nFileSizeLow;
|
|
|
1607
|
|
|
1608 /* Convert timestamps to Unix format. */
|
|
|
1609 buf->st_mtime = convert_time (wfd.ftLastWriteTime);
|
|
|
1610 buf->st_atime = convert_time (wfd.ftLastAccessTime);
|
|
|
1611 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
|
|
|
1612 buf->st_ctime = convert_time (wfd.ftCreationTime);
|
|
|
1613 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
|
|
|
1614
|
|
|
1615 /* determine rwx permissions */
|
|
|
1616 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
|
|
|
1617 permission = _S_IREAD;
|
|
|
1618 else
|
|
|
1619 permission = _S_IREAD | _S_IWRITE;
|
|
|
1620
|
|
|
1621 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1622 permission |= _S_IEXEC;
|
|
|
1623 else
|
|
|
1624 {
|
|
|
1625 char * p = strrchr (name, '.');
|
|
|
1626 if (p != NULL &&
|
|
|
1627 (stricmp (p, ".exe") == 0 ||
|
|
|
1628 stricmp (p, ".com") == 0 ||
|
|
|
1629 stricmp (p, ".bat") == 0 ||
|
|
|
1630 stricmp (p, ".cmd") == 0))
|
|
|
1631 permission |= _S_IEXEC;
|
|
|
1632 }
|
|
|
1633
|
|
|
1634 buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
|
|
|
1635
|
|
|
1636 return 0;
|
|
|
1637 }
|
|
398
|
1638 #endif /* defined(_MSC_VER) && _MSC_VER < 1100 */
|
|
100
|
1639
|
|
|
1640 /* From callproc.c */
|
|
|
1641 extern Lisp_Object Vbinary_process_input;
|
|
|
1642 extern Lisp_Object Vbinary_process_output;
|
|
|
1643
|
|
|
1644 /* Unix pipe() has only one arg */
|
|
|
1645 int
|
|
|
1646 sys_pipe (int * phandles)
|
|
|
1647 {
|
|
|
1648 int rc;
|
|
|
1649 unsigned flags;
|
|
|
1650
|
|
209
|
1651 /* make pipe handles non-inheritable; when we spawn a child, we
|
|
|
1652 replace the relevant handle with an inheritable one. Also put
|
|
|
1653 pipes into binary mode; we will do text mode translation ourselves
|
|
|
1654 if required. */
|
|
|
1655 rc = _pipe (phandles, 0, _O_NOINHERIT | _O_BINARY);
|
|
100
|
1656
|
|
|
1657 if (rc == 0)
|
|
|
1658 {
|
|
|
1659 flags = FILE_PIPE | FILE_READ;
|
|
|
1660 if (!NILP (Vbinary_process_output))
|
|
|
1661 flags |= FILE_BINARY;
|
|
|
1662 fd_info[phandles[0]].flags = flags;
|
|
|
1663
|
|
|
1664 flags = FILE_PIPE | FILE_WRITE;
|
|
|
1665 if (!NILP (Vbinary_process_input))
|
|
|
1666 flags |= FILE_BINARY;
|
|
|
1667 fd_info[phandles[1]].flags = flags;
|
|
|
1668 }
|
|
|
1669
|
|
|
1670 return rc;
|
|
|
1671 }
|
|
|
1672
|
|
|
1673 void
|
|
288
|
1674 term_ntproc (int unused)
|
|
100
|
1675 {
|
|
|
1676 }
|
|
|
1677
|
|
|
1678 void
|
|
|
1679 init_ntproc ()
|
|
|
1680 {
|
|
|
1681 /* Initial preparation for subprocess support: replace our standard
|
|
|
1682 handles with non-inheritable versions. */
|
|
|
1683 {
|
|
|
1684 HANDLE parent;
|
|
|
1685 HANDLE stdin_save = INVALID_HANDLE_VALUE;
|
|
|
1686 HANDLE stdout_save = INVALID_HANDLE_VALUE;
|
|
|
1687 HANDLE stderr_save = INVALID_HANDLE_VALUE;
|
|
|
1688
|
|
|
1689 parent = GetCurrentProcess ();
|
|
|
1690
|
|
|
1691 /* ignore errors when duplicating and closing; typically the
|
|
|
1692 handles will be invalid when running as a gui program. */
|
|
|
1693 DuplicateHandle (parent,
|
|
|
1694 GetStdHandle (STD_INPUT_HANDLE),
|
|
|
1695 parent,
|
|
|
1696 &stdin_save,
|
|
|
1697 0,
|
|
|
1698 FALSE,
|
|
|
1699 DUPLICATE_SAME_ACCESS);
|
|
|
1700
|
|
|
1701 DuplicateHandle (parent,
|
|
|
1702 GetStdHandle (STD_OUTPUT_HANDLE),
|
|
|
1703 parent,
|
|
|
1704 &stdout_save,
|
|
|
1705 0,
|
|
|
1706 FALSE,
|
|
|
1707 DUPLICATE_SAME_ACCESS);
|
|
|
1708
|
|
|
1709 DuplicateHandle (parent,
|
|
|
1710 GetStdHandle (STD_ERROR_HANDLE),
|
|
|
1711 parent,
|
|
|
1712 &stderr_save,
|
|
|
1713 0,
|
|
|
1714 FALSE,
|
|
|
1715 DUPLICATE_SAME_ACCESS);
|
|
|
1716
|
|
|
1717 fclose (stdin);
|
|
|
1718 fclose (stdout);
|
|
|
1719 fclose (stderr);
|
|
|
1720
|
|
|
1721 if (stdin_save != INVALID_HANDLE_VALUE)
|
|
|
1722 _open_osfhandle ((long) stdin_save, O_TEXT);
|
|
|
1723 else
|
|
|
1724 _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY);
|
|
209
|
1725 _fdopen (0, "r");
|
|
100
|
1726
|
|
|
1727 if (stdout_save != INVALID_HANDLE_VALUE)
|
|
|
1728 _open_osfhandle ((long) stdout_save, O_TEXT);
|
|
|
1729 else
|
|
|
1730 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
209
|
1731 _fdopen (1, "w");
|
|
100
|
1732
|
|
|
1733 if (stderr_save != INVALID_HANDLE_VALUE)
|
|
|
1734 _open_osfhandle ((long) stderr_save, O_TEXT);
|
|
|
1735 else
|
|
|
1736 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
209
|
1737 _fdopen (2, "w");
|
|
100
|
1738 }
|
|
|
1739
|
|
|
1740 /* unfortunately, atexit depends on implementation of malloc */
|
|
|
1741 /* atexit (term_ntproc); */
|
|
|
1742 signal (SIGABRT, term_ntproc);
|
|
209
|
1743
|
|
|
1744 /* determine which drives are fixed, for GetCachedVolumeInformation */
|
|
|
1745 {
|
|
|
1746 /* GetDriveType must have trailing backslash. */
|
|
|
1747 char drive[] = "A:\\";
|
|
|
1748
|
|
|
1749 /* Loop over all possible drive letters */
|
|
|
1750 while ( *drive <= 'Z' )
|
|
|
1751 {
|
|
|
1752 /* Record if this drive letter refers to a fixed drive. */
|
|
|
1753 fixed_drives[ DRIVE_INDEX (*drive) ] =
|
|
|
1754 (GetDriveType (drive) == DRIVE_FIXED);
|
|
|
1755
|
|
|
1756 (*drive)++;
|
|
|
1757 }
|
|
|
1758 }
|
|
100
|
1759 }
|
|
|
1760 #ifndef HAVE_TTY
|
|
|
1761 Lisp_Object
|
|
|
1762 tty_semi_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1763 Error_behavior errb)
|
|
|
1764 {
|
|
|
1765 return Vstdio_str;
|
|
|
1766 }
|
|
|
1767
|
|
|
1768 Lisp_Object
|
|
|
1769 tty_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1770 Error_behavior errb)
|
|
|
1771 {
|
|
|
1772 return Vstdio_str;
|
|
|
1773 }
|
|
|
1774
|
|
|
1775 Lisp_Object
|
|
|
1776 tty_semi_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1777 Error_behavior errb)
|
|
|
1778 {
|
|
|
1779 return Vstdio_str;
|
|
|
1780 }
|
|
|
1781
|
|
|
1782 Lisp_Object
|
|
|
1783 tty_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1784 Error_behavior errb)
|
|
|
1785 {
|
|
|
1786 return Vstdio_str;
|
|
|
1787 }
|
|
|
1788 #endif
|
|
|
1789
|
|
223
|
1790 /*--------------------------------------------------------------------*/
|
|
|
1791 /* Signal support */
|
|
|
1792 /*--------------------------------------------------------------------*/
|
|
|
1793
|
|
|
1794 /* We need MS-defined signal and raise here */
|
|
|
1795 #undef signal
|
|
|
1796 #undef raise
|
|
|
1797
|
|
|
1798 #define sigmask(nsig) (1U << nsig)
|
|
|
1799
|
|
|
1800 /* We can support as many signals as fit into word */
|
|
|
1801 #define SIG_MAX 32
|
|
|
1802
|
|
|
1803 /* Signal handlers. Initial value = 0 = SIG_DFL */
|
|
|
1804 static void (__cdecl *signal_handlers[SIG_MAX])(int) = {0};
|
|
|
1805
|
|
|
1806 /* Signal block mask: bit set to 1 means blocked */
|
|
|
1807 unsigned signal_block_mask = 0;
|
|
|
1808
|
|
|
1809 /* Signal pending mask: bit set to 1 means sig is pending */
|
|
|
1810 unsigned signal_pending_mask = 0;
|
|
|
1811
|
|
|
1812 msw_sighandler msw_sigset (int nsig, msw_sighandler handler)
|
|
|
1813 {
|
|
|
1814 /* We delegate some signals to the system function */
|
|
|
1815 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
288
|
1816 return signal (nsig, handler);
|
|
223
|
1817
|
|
|
1818 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1819 {
|
|
|
1820 errno = EINVAL;
|
|
288
|
1821 return NULL;
|
|
223
|
1822 }
|
|
|
1823
|
|
|
1824 /* Store handler ptr */
|
|
288
|
1825 {
|
|
|
1826 msw_sighandler old_handler = signal_handlers[nsig];
|
|
|
1827 signal_handlers[nsig] = handler;
|
|
|
1828 return old_handler;
|
|
|
1829 }
|
|
223
|
1830 }
|
|
|
1831
|
|
|
1832 int msw_sighold (int nsig)
|
|
|
1833 {
|
|
|
1834 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1835 return errno = EINVAL;
|
|
|
1836
|
|
|
1837 signal_block_mask |= sigmask(nsig);
|
|
|
1838 return 0;
|
|
|
1839 }
|
|
|
1840
|
|
|
1841 int msw_sigrelse (int nsig)
|
|
|
1842 {
|
|
|
1843 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1844 return errno = EINVAL;
|
|
|
1845
|
|
|
1846 signal_block_mask &= ~sigmask(nsig);
|
|
|
1847
|
|
|
1848 if (signal_pending_mask & sigmask(nsig))
|
|
|
1849 msw_raise (nsig);
|
|
|
1850
|
|
|
1851 return 0;
|
|
|
1852 }
|
|
|
1853
|
|
|
1854 int msw_sigpause (int nsig)
|
|
|
1855 {
|
|
|
1856 /* This is currently not called, because the only
|
|
|
1857 call to sigpause inside XEmacs is with SIGCHLD
|
|
|
1858 parameter. Just in case, we put an assert here,
|
|
|
1859 so anyone who will add a call to sigpause will
|
|
|
1860 be surprised (or surprise someone else...) */
|
|
|
1861 assert (0);
|
|
|
1862 return 0;
|
|
|
1863 }
|
|
|
1864
|
|
|
1865 int msw_raise (int nsig)
|
|
|
1866 {
|
|
|
1867 /* We delegate some raises to the system routine */
|
|
|
1868 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
|
1869 return raise (nsig);
|
|
|
1870
|
|
|
1871 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1872 return errno = EINVAL;
|
|
|
1873
|
|
|
1874 /* If the signal is blocked, remember to issue later */
|
|
|
1875 if (signal_block_mask & sigmask(nsig))
|
|
|
1876 {
|
|
|
1877 signal_pending_mask |= sigmask(nsig);
|
|
|
1878 return 0;
|
|
|
1879 }
|
|
|
1880
|
|
|
1881 if (signal_handlers[nsig] == SIG_IGN)
|
|
|
1882 return 0;
|
|
|
1883
|
|
|
1884 if (signal_handlers[nsig] != SIG_DFL)
|
|
|
1885 {
|
|
|
1886 (*signal_handlers[nsig])(nsig);
|
|
|
1887 return 0;
|
|
|
1888 }
|
|
|
1889
|
|
|
1890 /* Default signal actions */
|
|
|
1891 if (nsig == SIGALRM || nsig == SIGPROF)
|
|
|
1892 exit (3);
|
|
|
1893
|
|
|
1894 /* Other signals are ignored by default */
|
|
398
|
1895 return 0;
|
|
223
|
1896 }
|
|
|
1897
|
|
|
1898 /*--------------------------------------------------------------------*/
|
|
|
1899 /* Async timers */
|
|
|
1900 /*--------------------------------------------------------------------*/
|
|
|
1901
|
|
|
1902 /* We emulate two timers, one for SIGALRM, another for SIGPROF.
|
|
|
1903
|
|
|
1904 itimerproc() function has an implementation limitation: it does
|
|
|
1905 not allow to set *both* interval and period. If an attempt is
|
|
|
1906 made to set both, and then they are unequal, the function
|
|
|
1907 asserts.
|
|
|
1908
|
|
|
1909 Minimum timer resolution on Win32 systems varies, and is greater
|
|
|
1910 than or equal than 1 ms. The resolution is always wrapped not to
|
|
|
1911 attempt to get below the system defined limit.
|
|
|
1912 */
|
|
|
1913
|
|
|
1914 /* Timer precision, denominator of one fraction: for 100 ms
|
|
|
1915 interval, request 10 ms precision
|
|
|
1916 */
|
|
|
1917 const int timer_prec = 10;
|
|
|
1918
|
|
380
|
1919 /* Last itimervals, as set by calls to setitimer */
|
|
223
|
1920 static struct itimerval it_alarm;
|
|
|
1921 static struct itimerval it_prof;
|
|
|
1922
|
|
|
1923 /* Timer IDs as returned by MM */
|
|
|
1924 MMRESULT tid_alarm = 0;
|
|
|
1925 MMRESULT tid_prof = 0;
|
|
|
1926
|
|
|
1927 static void CALLBACK timer_proc (UINT uID, UINT uMsg, DWORD dwUser,
|
|
|
1928 DWORD dw1, DWORD dw2)
|
|
|
1929 {
|
|
|
1930 /* Just raise a signal indicated by dwUser parameter */
|
|
|
1931 msw_raise (dwUser);
|
|
|
1932 }
|
|
|
1933
|
|
|
1934 /* Divide time in ms specified by IT by DENOM. Return 1 ms
|
|
|
1935 if division results in zero */
|
|
|
1936 static UINT period (const struct itimerval* it, UINT denom)
|
|
|
1937 {
|
|
|
1938 static TIMECAPS time_caps;
|
|
|
1939
|
|
|
1940 UINT res;
|
|
|
1941 const struct timeval* tv =
|
|
|
1942 (it->it_value.tv_sec == 0 && it->it_value.tv_usec == 0)
|
|
|
1943 ? &it->it_interval : &it->it_value;
|
|
|
1944
|
|
|
1945 /* Zero means stop timer */
|
|
|
1946 if (tv->tv_sec == 0 && tv->tv_usec == 0)
|
|
|
1947 return 0;
|
|
|
1948
|
|
380
|
1949 /* Convert to ms and divide by denom */
|
|
223
|
1950 res = (tv->tv_sec * 1000 + (tv->tv_usec + 500) / 1000) / denom;
|
|
|
1951
|
|
|
1952 /* Converge to minimum timer resolution */
|
|
|
1953 if (time_caps.wPeriodMin == 0)
|
|
|
1954 timeGetDevCaps (&time_caps, sizeof(time_caps));
|
|
|
1955
|
|
|
1956 if (res < time_caps.wPeriodMin)
|
|
|
1957 res = time_caps.wPeriodMin;
|
|
|
1958
|
|
|
1959 return res;
|
|
|
1960 }
|
|
|
1961
|
|
|
1962 static int setitimer_helper (const struct itimerval* itnew,
|
|
|
1963 struct itimerval* itold, struct itimerval* itcurrent,
|
|
|
1964 MMRESULT* tid, DWORD sigkind)
|
|
|
1965 {
|
|
|
1966 UINT delay, resolution, event_type;
|
|
|
1967
|
|
|
1968 /* First stop the old timer */
|
|
|
1969 if (*tid)
|
|
|
1970 {
|
|
|
1971 timeKillEvent (*tid);
|
|
|
1972 timeEndPeriod (period (itcurrent, timer_prec));
|
|
|
1973 *tid = 0;
|
|
|
1974 }
|
|
|
1975
|
|
|
1976 /* Return old itimerval if requested */
|
|
|
1977 if (itold)
|
|
|
1978 *itold = *itcurrent;
|
|
|
1979
|
|
|
1980 *itcurrent = *itnew;
|
|
|
1981
|
|
|
1982 /* Determine if to start new timer */
|
|
|
1983 delay = period (itnew, 1);
|
|
|
1984 if (delay)
|
|
|
1985 {
|
|
|
1986 resolution = period (itnew, timer_prec);
|
|
|
1987 event_type = (itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
1988 ? TIME_ONESHOT : TIME_PERIODIC;
|
|
|
1989 timeBeginPeriod (resolution);
|
|
|
1990 *tid = timeSetEvent (delay, resolution, timer_proc, sigkind, event_type);
|
|
|
1991 }
|
|
|
1992
|
|
|
1993 return !delay || *tid;
|
|
|
1994 }
|
|
|
1995
|
|
|
1996 int setitimer (int kind, const struct itimerval* itnew,
|
|
|
1997 struct itimerval* itold)
|
|
|
1998 {
|
|
|
1999 /* In this version, both interval and value are allowed
|
|
|
2000 only if they are equal. */
|
|
|
2001 assert ((itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
2002 || (itnew->it_interval.tv_sec == 0 && itnew->it_interval.tv_usec == 0)
|
|
|
2003 || (itnew->it_value.tv_sec == itnew->it_interval.tv_sec &&
|
|
|
2004 itnew->it_value.tv_usec == itnew->it_interval.tv_usec));
|
|
|
2005
|
|
|
2006 if (kind == ITIMER_REAL)
|
|
|
2007 return setitimer_helper (itnew, itold, &it_alarm, &tid_alarm, SIGALRM);
|
|
|
2008 else if (kind == ITIMER_PROF)
|
|
|
2009 return setitimer_helper (itnew, itold, &it_prof, &tid_prof, SIGPROF);
|
|
|
2010 else
|
|
|
2011 return errno = EINVAL;
|
|
|
2012 }
|
|
|
2013
|
|
398
|
2014 int
|
|
|
2015 open_input_file (file_data *p_file, const char *filename)
|
|
|
2016 {
|
|
|
2017 HANDLE file;
|
|
|
2018 HANDLE file_mapping;
|
|
|
2019 void *file_base;
|
|
|
2020 DWORD size, upper_size;
|
|
|
2021
|
|
|
2022 file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL,
|
|
|
2023 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
|
|
|
2024 if (file == INVALID_HANDLE_VALUE)
|
|
|
2025 return FALSE;
|
|
|
2026
|
|
|
2027 size = GetFileSize (file, &upper_size);
|
|
|
2028 file_mapping = CreateFileMapping (file, NULL, PAGE_READONLY,
|
|
|
2029 0, size, NULL);
|
|
|
2030 if (!file_mapping)
|
|
|
2031 return FALSE;
|
|
|
2032
|
|
|
2033 file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size);
|
|
|
2034 if (file_base == 0)
|
|
|
2035 return FALSE;
|
|
|
2036
|
|
|
2037 p_file->name = (char*)filename;
|
|
|
2038 p_file->size = size;
|
|
|
2039 p_file->file = file;
|
|
|
2040 p_file->file_mapping = file_mapping;
|
|
|
2041 p_file->file_base = file_base;
|
|
|
2042
|
|
|
2043 return TRUE;
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 /* Close the system structures associated with the given file. */
|
|
|
2047 void
|
|
|
2048 close_file_data (file_data *p_file)
|
|
|
2049 {
|
|
|
2050 UnmapViewOfFile (p_file->file_base);
|
|
|
2051 CloseHandle (p_file->file_mapping);
|
|
|
2052 CloseHandle (p_file->file);
|
|
|
2053 }
|
|
|
2054
|
|
|
2055 void
|
|
|
2056 vars_of_nt (void)
|
|
|
2057 {
|
|
|
2058 DEFVAR_INT ("nt-fake-unix-uid", &nt_fake_unix_uid /*
|
|
|
2059 *Set uid returned by `user-uid' and `user-real-uid'.
|
|
|
2060 Under NT and 9x, there is no uids, and even no almighty user called root.
|
|
|
2061 By setting this variable, you can have any uid of choice. Default is 0.
|
|
|
2062 Changes to this variable take effect immediately.
|
|
|
2063 */ );
|
|
|
2064 nt_fake_unix_uid = 0;
|
|
|
2065 }
|
|
|
2066
|
|
100
|
2067 /* end of nt.c */
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