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428
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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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25 /* Sync'ed with Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> */
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26
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27 #include <config.h>
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28 #define getwd _getwd
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29 #include "lisp.h"
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30 #undef getwd
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31
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32 #include "systime.h"
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33 #include "syssignal.h"
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34 #include "sysproc.h"
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35 #include "sysfile.h"
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442
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36 #include "syspwd.h"
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37 #include "sysdir.h"
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428
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38
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442
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39 #include "syswindows.h"
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428
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40
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41 #include "nt.h"
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42 #include "ntheap.h"
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43
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44
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45 extern Lisp_Object Vmswindows_downcase_file_names;
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46 #if 0
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47 extern Lisp_Object Vwin32_generate_fake_inodes;
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48 #endif
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49 extern Lisp_Object Vmswindows_get_true_file_attributes;
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50
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458
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51 Fixnum nt_fake_unix_uid;
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428
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52
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53 static char startup_dir[ MAXPATHLEN ];
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54
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55 /* Get the current working directory. */
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56 char *
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57 getwd (char *dir)
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58 {
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59 #if 0
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60 if (GetCurrentDirectory (MAXPATHLEN, dir) > 0)
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61 return dir;
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62 return NULL;
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63 #else
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64 /* Emacs doesn't actually change directory itself, and we want to
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65 force our real wd to be where emacs.exe is to avoid unnecessary
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66 conflicts when trying to rename or delete directories. */
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67 strcpy (dir, startup_dir);
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68 return dir;
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69 #endif
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70 }
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71
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72 /* Emulate getpwuid, getpwnam and others. */
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73
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74 #define PASSWD_FIELD_SIZE 256
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75
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76 static char the_passwd_name[PASSWD_FIELD_SIZE];
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77 static char the_passwd_passwd[PASSWD_FIELD_SIZE];
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78 static char the_passwd_gecos[PASSWD_FIELD_SIZE];
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79 static char the_passwd_dir[PASSWD_FIELD_SIZE];
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80 static char the_passwd_shell[PASSWD_FIELD_SIZE];
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81
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82 static struct passwd the_passwd =
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83 {
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84 the_passwd_name,
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85 the_passwd_passwd,
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86 0,
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87 0,
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88 0,
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89 the_passwd_gecos,
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90 the_passwd_dir,
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91 the_passwd_shell,
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92 };
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93
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94 uid_t
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442
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95 getuid (void)
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440
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96 {
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97 return nt_fake_unix_uid;
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428
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98 }
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99
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100 uid_t
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442
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101 geteuid (void)
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428
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102 {
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440
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103 return nt_fake_unix_uid;
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428
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104 }
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105
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106 gid_t
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442
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107 getgid (void)
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428
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108 {
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109 return the_passwd.pw_gid;
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110 }
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111
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112 gid_t
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442
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113 getegid (void)
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428
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114 {
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115 return getgid ();
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116 }
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117
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118 struct passwd *
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119 getpwuid (uid_t uid)
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120 {
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440
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121 if (uid == nt_fake_unix_uid)
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122 {
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123 the_passwd.pw_gid = the_passwd.pw_uid = uid;
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124 return &the_passwd;
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125 }
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126 else
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127 return NULL;
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428
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128 }
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129
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130 struct passwd *
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131 getpwnam (const char *name)
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132 {
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133 struct passwd *pw;
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134
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135 pw = getpwuid (getuid ());
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136 if (!pw)
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137 return pw;
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138
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139 if (stricmp (name, pw->pw_name))
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140 return NULL;
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141
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142 return pw;
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143 }
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144
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145 void
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442
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146 init_user_info (void)
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428
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147 {
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440
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148 /* This code is pretty much of ad hoc nature. There is no unix-like
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149 UIDs under Windows NT. There is no concept of root user, because
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150 all security is ACL-based. Instead, let's use a simple variable,
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151 nt-fake-unix-uid, which would allow the user to have a uid of
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152 choice. --kkm, 02/03/2000 */
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153 #if 0
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428
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154 /* Find the user's real name by opening the process token and
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155 looking up the name associated with the user-sid in that token.
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156
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157 Use the relative portion of the identifier authority value from
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158 the user-sid as the user id value (same for group id using the
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159 primary group sid from the process token). */
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160
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161 char user_sid[256], name[256], domain[256];
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162 DWORD length = sizeof (name), dlength = sizeof (domain), trash;
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163 HANDLE token = NULL;
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164 SID_NAME_USE user_type;
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165
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166 if (OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &token)
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167 && GetTokenInformation (token, TokenUser,
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168 (PVOID) user_sid, sizeof (user_sid), &trash)
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169 && LookupAccountSid (NULL, *((PSID *) user_sid), name, &length,
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170 domain, &dlength, &user_type))
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171 {
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172 strcpy (the_passwd.pw_name, name);
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173 /* Determine a reasonable uid value. */
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174 if (stricmp ("administrator", name) == 0)
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175 {
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176 the_passwd.pw_uid = 0;
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177 the_passwd.pw_gid = 0;
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178 }
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179 else
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180 {
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181 SID_IDENTIFIER_AUTHORITY * pSIA;
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182
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183 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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184 /* I believe the relative portion is the last 4 bytes (of 6)
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185 with msb first. */
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186 the_passwd.pw_uid = ((pSIA->Value[2] << 24) +
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187 (pSIA->Value[3] << 16) +
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188 (pSIA->Value[4] << 8) +
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189 (pSIA->Value[5] << 0));
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190 /* restrict to conventional uid range for normal users */
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191 the_passwd.pw_uid = the_passwd.pw_uid % 60001;
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192
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193 /* Get group id */
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194 if (GetTokenInformation (token, TokenPrimaryGroup,
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195 (PVOID) user_sid, sizeof (user_sid), &trash))
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196 {
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197 SID_IDENTIFIER_AUTHORITY * pSIA;
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198
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199 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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200 the_passwd.pw_gid = ((pSIA->Value[2] << 24) +
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201 (pSIA->Value[3] << 16) +
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202 (pSIA->Value[4] << 8) +
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203 (pSIA->Value[5] << 0));
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204 /* I don't know if this is necessary, but for safety... */
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205 the_passwd.pw_gid = the_passwd.pw_gid % 60001;
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206 }
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207 else
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208 the_passwd.pw_gid = the_passwd.pw_uid;
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209 }
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210 }
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211 /* If security calls are not supported (presumably because we
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212 are running under Windows 95), fallback to this. */
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213 else if (GetUserName (name, &length))
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214 {
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215 strcpy (the_passwd.pw_name, name);
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216 if (stricmp ("administrator", name) == 0)
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217 the_passwd.pw_uid = 0;
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218 else
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219 the_passwd.pw_uid = 123;
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220 the_passwd.pw_gid = the_passwd.pw_uid;
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221 }
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222 else
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223 {
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224 strcpy (the_passwd.pw_name, "unknown");
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225 the_passwd.pw_uid = 123;
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226 the_passwd.pw_gid = 123;
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227 }
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228
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440
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229 if (token)
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230 CloseHandle (token);
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231 #else
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232 /* Obtain only logon id here, uid part is moved to getuid */
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233 char name[256];
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234 DWORD length = sizeof (name);
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235 if (GetUserName (name, &length))
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236 strcpy (the_passwd.pw_name, name);
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237 else
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238 strcpy (the_passwd.pw_name, "unknown");
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239 #endif
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240
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428
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241 /* Ensure HOME and SHELL are defined. */
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242 #if 0
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243 /*
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244 * With XEmacs, setting $HOME is deprecated.
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245 */
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246 if (getenv ("HOME") == NULL)
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247 putenv ("HOME=c:/");
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248 #endif
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249 if (getenv ("SHELL") == NULL)
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250 putenv ((GetVersion () & 0x80000000) ? "SHELL=command" : "SHELL=cmd");
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251
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252 /* Set dir and shell from environment variables. */
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442
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253 strcpy (the_passwd.pw_dir, (char *)get_home_directory());
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428
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254 strcpy (the_passwd.pw_shell, getenv ("SHELL"));
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255 }
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256
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257 /* Normalize filename by converting all path separators to
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258 the specified separator. Also conditionally convert upper
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259 case path name components to lower case. */
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260
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261 static void
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442
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262 normalize_filename (char *fp, char path_sep)
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428
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263 {
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264 char sep;
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265 char *elem;
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266
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267 /* Always lower-case drive letters a-z, even if the filesystem
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268 preserves case in filenames.
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269 This is so filenames can be compared by string comparison
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270 functions that are case-sensitive. Even case-preserving filesystems
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271 do not distinguish case in drive letters. */
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272 if (fp[1] == ':' && *fp >= 'A' && *fp <= 'Z')
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273 {
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274 *fp += 'a' - 'A';
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275 fp += 2;
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276 }
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277
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278 if (NILP (Vmswindows_downcase_file_names))
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279 {
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280 while (*fp)
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281 {
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282 if (*fp == '/' || *fp == '\\')
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283 *fp = path_sep;
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284 fp++;
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285 }
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286 return;
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287 }
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288
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289 sep = path_sep; /* convert to this path separator */
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290 elem = fp; /* start of current path element */
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291
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292 do {
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293 if (*fp >= 'a' && *fp <= 'z')
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294 elem = 0; /* don't convert this element */
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295
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296 if (*fp == 0 || *fp == ':')
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297 {
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298 sep = *fp; /* restore current separator (or 0) */
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299 *fp = '/'; /* after conversion of this element */
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300 }
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301
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302 if (*fp == '/' || *fp == '\\')
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303 {
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304 if (elem && elem != fp)
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305 {
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306 *fp = 0; /* temporary end of string */
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307 _strlwr (elem); /* while we convert to lower case */
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308 }
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309 *fp = sep; /* convert (or restore) path separator */
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310 elem = fp + 1; /* next element starts after separator */
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311 sep = path_sep;
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312 }
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313 } while (*fp++);
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314 }
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315
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316 /* Destructively turn backslashes into slashes. */
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317 void
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442
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318 dostounix_filename (char *p)
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428
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319 {
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320 normalize_filename (p, '/');
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321 }
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322
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323 /* Destructively turn slashes into backslashes. */
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324 void
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442
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325 unixtodos_filename (char *p)
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428
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326 {
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327 normalize_filename (p, '\\');
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328 }
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329
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330 /* Remove all CR's that are followed by a LF.
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331 (From msdos.c...probably should figure out a way to share it,
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332 although this code isn't going to ever change.) */
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333 int
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442
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334 crlf_to_lf (int n, unsigned char *buf, unsigned *lf_count)
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428
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335 {
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336 unsigned char *np = buf;
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337 unsigned char *startp = buf;
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338 unsigned char *endp = buf + n;
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339
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340 if (n == 0)
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341 return n;
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342 while (buf < endp - 1)
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343 {
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344 if (*buf == 0x0a)
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345 (*lf_count)++;
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346 if (*buf == 0x0d)
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347 {
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348 if (*(++buf) != 0x0a)
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349 *np++ = 0x0d;
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350 }
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351 else
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352 *np++ = *buf++;
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353 }
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354 if (buf < endp)
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355 {
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356 if (*buf == 0x0a)
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357 (*lf_count)++;
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358 *np++ = *buf++;
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359 }
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360 return np - startp;
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361 }
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362
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363 /* Parse the root part of file name, if present. Return length and
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364 optionally store pointer to char after root. */
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365 static int
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366 parse_root (char * name, char ** pPath)
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367 {
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368 char * start = name;
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369
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370 if (name == NULL)
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371 return 0;
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372
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373 /* find the root name of the volume if given */
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374 if (isalpha (name[0]) && name[1] == ':')
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375 {
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376 /* skip past drive specifier */
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377 name += 2;
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378 if (IS_DIRECTORY_SEP (name[0]))
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379 name++;
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380 }
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381 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
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382 {
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383 int slashes = 2;
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384 name += 2;
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385 do
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386 {
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387 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
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388 break;
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389 name++;
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390 }
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391 while ( *name );
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392 if (IS_DIRECTORY_SEP (name[0]))
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393 name++;
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394 }
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395
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396 if (pPath)
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397 *pPath = name;
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398
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399 return name - start;
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400 }
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401
|
|
|
402 /* Get long base name for name; name is assumed to be absolute. */
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|
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403 static int
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|
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404 get_long_basename (char * name, char * buf, int size)
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|
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405 {
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|
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406 WIN32_FIND_DATA find_data;
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|
|
407 HANDLE dir_handle;
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|
|
408 int len = 0;
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|
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409 #ifdef PIGSFLY
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|
|
410 char *p;
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|
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411
|
|
|
412 /* If the last component of NAME has a wildcard character,
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|
|
413 return it as the basename. */
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|
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414 p = name + strlen (name);
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|
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415 while (*p != '\\' && *p != ':' && p > name) p--;
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|
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416 if (p > name) p++;
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417 if (strchr (p, '*') || strchr (p, '?'))
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|
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418 {
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419 if ((len = strlen (p)) < size)
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|
|
420 memcpy (buf, p, len + 1);
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|
|
421 else
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|
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422 len = 0;
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|
|
423 return len;
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|
|
424 }
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|
|
425 #endif
|
|
|
426
|
|
|
427 dir_handle = FindFirstFile (name, &find_data);
|
|
|
428 if (dir_handle != INVALID_HANDLE_VALUE)
|
|
|
429 {
|
|
|
430 if ((len = strlen (find_data.cFileName)) < size)
|
|
|
431 memcpy (buf, find_data.cFileName, len + 1);
|
|
|
432 else
|
|
|
433 len = 0;
|
|
|
434 FindClose (dir_handle);
|
|
|
435 }
|
|
|
436 return len;
|
|
|
437 }
|
|
|
438
|
|
|
439 /* Get long name for file, if possible (assumed to be absolute). */
|
|
|
440 BOOL
|
|
|
441 win32_get_long_filename (char * name, char * buf, int size)
|
|
|
442 {
|
|
|
443 char * o = buf;
|
|
|
444 char * p;
|
|
|
445 char * q;
|
|
|
446 char full[ MAX_PATH ];
|
|
|
447 int len;
|
|
|
448
|
|
|
449 len = strlen (name);
|
|
|
450 if (len >= MAX_PATH)
|
|
|
451 return FALSE;
|
|
|
452
|
|
|
453 /* Use local copy for destructive modification. */
|
|
|
454 memcpy (full, name, len+1);
|
|
|
455 unixtodos_filename (full);
|
|
|
456
|
|
|
457 /* Copy root part verbatim. */
|
|
|
458 len = parse_root (full, &p);
|
|
|
459 memcpy (o, full, len);
|
|
|
460 o += len;
|
|
|
461 size -= len;
|
|
|
462
|
|
|
463 do
|
|
|
464 {
|
|
|
465 q = p;
|
|
|
466 p = strchr (q, '\\');
|
|
|
467 if (p) *p = '\0';
|
|
|
468 len = get_long_basename (full, o, size);
|
|
|
469 if (len > 0)
|
|
|
470 {
|
|
|
471 o += len;
|
|
|
472 size -= len;
|
|
|
473 if (p != NULL)
|
|
|
474 {
|
|
|
475 *p++ = '\\';
|
|
|
476 if (size < 2)
|
|
|
477 return FALSE;
|
|
|
478 *o++ = '\\';
|
|
|
479 size--;
|
|
|
480 *o = '\0';
|
|
|
481 }
|
|
|
482 }
|
|
|
483 else
|
|
|
484 return FALSE;
|
|
|
485 }
|
|
|
486 while (p != NULL && *p);
|
|
|
487
|
|
|
488 return TRUE;
|
|
|
489 }
|
|
|
490
|
|
|
491
|
|
|
492 /* Routines that are no-ops on NT but are defined to get Emacs to compile. */
|
|
|
493
|
|
|
494 #if 0 /* #### We do not need those, do we? -kkm */
|
|
|
495 int
|
|
|
496 unrequest_sigio (void)
|
|
|
497 {
|
|
|
498 return 0;
|
|
|
499 }
|
|
|
500
|
|
|
501 int
|
|
|
502 request_sigio (void)
|
|
|
503 {
|
|
|
504 return 0;
|
|
|
505 }
|
|
|
506 #endif /* 0 */
|
|
|
507
|
|
|
508 #define REG_ROOT "SOFTWARE\\GNU\\XEmacs"
|
|
|
509
|
|
|
510 LPBYTE
|
|
442
|
511 nt_get_resource (char *key, LPDWORD lpdwtype)
|
|
428
|
512 {
|
|
|
513 LPBYTE lpvalue;
|
|
|
514 HKEY hrootkey = NULL;
|
|
|
515 DWORD cbData;
|
|
|
516
|
|
|
517 /* Check both the current user and the local machine to see if
|
|
|
518 we have any resources. */
|
|
|
519
|
|
|
520 if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
521 {
|
|
|
522 lpvalue = NULL;
|
|
|
523
|
|
|
524 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS
|
|
|
525 && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL
|
|
|
526 && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
527 {
|
|
|
528 return (lpvalue);
|
|
|
529 }
|
|
|
530
|
|
|
531 if (lpvalue) xfree (lpvalue);
|
|
|
532
|
|
|
533 RegCloseKey (hrootkey);
|
|
|
534 }
|
|
|
535
|
|
|
536 if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
537 {
|
|
|
538 lpvalue = NULL;
|
|
|
539
|
|
|
540 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS &&
|
|
|
541 (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL &&
|
|
|
542 RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
543 {
|
|
|
544 return (lpvalue);
|
|
|
545 }
|
|
|
546
|
|
|
547 if (lpvalue) xfree (lpvalue);
|
|
|
548
|
|
|
549 RegCloseKey (hrootkey);
|
|
|
550 }
|
|
|
551
|
|
|
552 return (NULL);
|
|
|
553 }
|
|
|
554
|
|
|
555 void
|
|
442
|
556 init_environment (void)
|
|
428
|
557 {
|
|
|
558 /* Check for environment variables and use registry if they don't exist */
|
|
|
559 {
|
|
|
560 int i;
|
|
|
561 LPBYTE lpval;
|
|
|
562 DWORD dwType;
|
|
|
563
|
|
|
564 static char * env_vars[] =
|
|
|
565 {
|
|
|
566 "HOME",
|
|
|
567 "emacs_dir",
|
|
|
568 "EMACSLOADPATH",
|
|
|
569 "EMACSDEBUGPATHS",
|
|
|
570 "SHELL",
|
|
|
571 "CMDPROXY",
|
|
|
572 "EMACSDATA",
|
|
|
573 "EMACSPATH",
|
|
|
574 "EMACSPACKAGEPATH",
|
|
|
575 "EMACSLOCKDIR",
|
|
|
576 "INFOPATH"
|
|
|
577 };
|
|
442
|
578 #if defined (HEAP_IN_DATA) && !defined(PDUMP)
|
|
430
|
579 cache_system_info ();
|
|
|
580 #endif
|
|
428
|
581 for (i = 0; i < countof (env_vars); i++)
|
|
|
582 {
|
|
|
583 if (!getenv (env_vars[i]) &&
|
|
|
584 (lpval = nt_get_resource (env_vars[i], &dwType)) != NULL)
|
|
|
585 {
|
|
|
586 if (dwType == REG_EXPAND_SZ)
|
|
|
587 {
|
|
|
588 char buf1[500], buf2[500];
|
|
|
589
|
|
|
590 ExpandEnvironmentStrings ((LPSTR) lpval, buf1, 500);
|
|
|
591 _snprintf (buf2, 499, "%s=%s", env_vars[i], buf1);
|
|
|
592 putenv (strdup (buf2));
|
|
|
593 }
|
|
|
594 else if (dwType == REG_SZ)
|
|
|
595 {
|
|
|
596 char buf[500];
|
|
|
597
|
|
|
598 _snprintf (buf, 499, "%s=%s", env_vars[i], lpval);
|
|
|
599 putenv (strdup (buf));
|
|
|
600 }
|
|
|
601
|
|
|
602 xfree (lpval);
|
|
|
603 }
|
|
|
604 }
|
|
|
605 }
|
|
|
606
|
|
|
607 /* Another special case: on NT, the PATH variable is actually named
|
|
|
608 "Path" although cmd.exe (perhaps NT itself) arranges for
|
|
|
609 environment variable lookup and setting to be case insensitive.
|
|
|
610 However, Emacs assumes a fully case sensitive environment, so we
|
|
|
611 need to change "Path" to "PATH" to match the expectations of
|
|
|
612 various elisp packages. We do this by the sneaky method of
|
|
|
613 modifying the string in the C runtime environ entry.
|
|
|
614
|
|
|
615 The same applies to COMSPEC. */
|
|
|
616 {
|
|
|
617 char ** envp;
|
|
|
618
|
|
|
619 for (envp = environ; *envp; envp++)
|
|
|
620 if (_strnicmp (*envp, "PATH=", 5) == 0)
|
|
|
621 memcpy (*envp, "PATH=", 5);
|
|
|
622 else if (_strnicmp (*envp, "COMSPEC=", 8) == 0)
|
|
|
623 memcpy (*envp, "COMSPEC=", 8);
|
|
|
624 }
|
|
|
625
|
|
|
626 /* Remember the initial working directory for getwd, then make the
|
|
|
627 real wd be the location of emacs.exe to avoid conflicts when
|
|
|
628 renaming or deleting directories. (We also don't call chdir when
|
|
|
629 running subprocesses for the same reason.) */
|
|
|
630 if (!GetCurrentDirectory (MAXPATHLEN, startup_dir))
|
|
|
631 abort ();
|
|
|
632
|
|
|
633 {
|
|
|
634 char *p;
|
|
|
635 char modname[MAX_PATH];
|
|
|
636
|
|
|
637 if (!GetModuleFileName (NULL, modname, MAX_PATH))
|
|
|
638 abort ();
|
|
|
639 if ((p = strrchr (modname, '\\')) == NULL)
|
|
|
640 abort ();
|
|
|
641 *p = 0;
|
|
|
642
|
|
|
643 SetCurrentDirectory (modname);
|
|
|
644 }
|
|
|
645
|
|
|
646 init_user_info ();
|
|
|
647 }
|
|
|
648
|
|
|
649 #ifndef HAVE_X_WINDOWS
|
|
|
650 /* X11R6 on NT provides the single parameter version of this command. */
|
|
|
651
|
|
|
652 #include <sys/timeb.h>
|
|
|
653
|
|
|
654 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */
|
|
|
655 void
|
|
|
656 gettimeofday (struct timeval *tv, struct timezone *tz)
|
|
|
657 {
|
|
|
658 struct _timeb tb;
|
|
|
659 _ftime (&tb);
|
|
|
660
|
|
|
661 tv->tv_sec = tb.time;
|
|
|
662 tv->tv_usec = tb.millitm * 1000L;
|
|
|
663 if (tz)
|
|
|
664 {
|
|
|
665 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
|
|
|
666 tz->tz_dsttime = tb.dstflag; /* type of dst correction */
|
|
|
667 }
|
|
|
668 }
|
|
|
669
|
|
|
670 #endif /* HAVE_X_WINDOWS */
|
|
|
671
|
|
|
672 /* ------------------------------------------------------------------------- */
|
|
|
673 /* IO support and wrapper functions for Win32 API. */
|
|
|
674 /* ------------------------------------------------------------------------- */
|
|
|
675
|
|
|
676 /* Place a wrapper around the MSVC version of ctime. It returns NULL
|
|
|
677 on network directories, so we handle that case here.
|
|
|
678 (Ulrich Leodolter, 1/11/95). */
|
|
|
679 char *
|
|
|
680 sys_ctime (const time_t *t)
|
|
|
681 {
|
|
|
682 char *str = (char *) ctime (t);
|
|
|
683 return (str ? str : "Sun Jan 01 00:00:00 1970");
|
|
|
684 }
|
|
|
685
|
|
|
686 /* Emulate sleep...we could have done this with a define, but that
|
|
|
687 would necessitate including windows.h in the files that used it.
|
|
|
688 This is much easier. */
|
|
|
689
|
|
|
690 #ifndef HAVE_X_WINDOWS
|
|
|
691 void
|
|
|
692 sys_sleep (int seconds)
|
|
|
693 {
|
|
|
694 Sleep (seconds * 1000);
|
|
|
695 }
|
|
|
696 #endif
|
|
|
697
|
|
|
698 /* #### This is an evil dirty hack. We must get rid of it.
|
|
|
699 Word "munging" is not in XEmacs lexicon. - kkm */
|
|
|
700
|
|
|
701 /* Internal MSVC data and functions for low-level descriptor munging */
|
|
|
702 #if (_MSC_VER == 900)
|
|
|
703 extern char _osfile[];
|
|
|
704 #endif
|
|
|
705 extern int __cdecl _set_osfhnd (int fd, long h);
|
|
|
706 extern int __cdecl _free_osfhnd (int fd);
|
|
|
707
|
|
|
708 /* parallel array of private info on file handles */
|
|
|
709 filedesc fd_info [ MAXDESC ];
|
|
|
710
|
|
|
711 typedef struct volume_info_data {
|
|
|
712 struct volume_info_data * next;
|
|
|
713
|
|
|
714 /* time when info was obtained */
|
|
|
715 DWORD timestamp;
|
|
|
716
|
|
|
717 /* actual volume info */
|
|
|
718 char * root_dir;
|
|
|
719 DWORD serialnum;
|
|
|
720 DWORD maxcomp;
|
|
|
721 DWORD flags;
|
|
|
722 char * name;
|
|
|
723 char * type;
|
|
|
724 } volume_info_data;
|
|
|
725
|
|
|
726 /* Global referenced by various functions. */
|
|
|
727 static volume_info_data volume_info;
|
|
|
728
|
|
|
729 /* Vector to indicate which drives are local and fixed (for which cached
|
|
|
730 data never expires). */
|
|
|
731 static BOOL fixed_drives[26];
|
|
|
732
|
|
|
733 /* Consider cached volume information to be stale if older than 10s,
|
|
|
734 at least for non-local drives. Info for fixed drives is never stale. */
|
|
|
735 #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' )
|
|
|
736 #define VOLINFO_STILL_VALID( root_dir, info ) \
|
|
|
737 ( ( isalpha (root_dir[0]) && \
|
|
|
738 fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \
|
|
|
739 || GetTickCount () - info->timestamp < 10000 )
|
|
|
740
|
|
|
741 /* Cache support functions. */
|
|
|
742
|
|
|
743 /* Simple linked list with linear search is sufficient. */
|
|
|
744 static volume_info_data *volume_cache = NULL;
|
|
|
745
|
|
|
746 static volume_info_data *
|
|
|
747 lookup_volume_info (char * root_dir)
|
|
|
748 {
|
|
|
749 volume_info_data * info;
|
|
|
750
|
|
|
751 for (info = volume_cache; info; info = info->next)
|
|
|
752 if (stricmp (info->root_dir, root_dir) == 0)
|
|
|
753 break;
|
|
|
754 return info;
|
|
|
755 }
|
|
|
756
|
|
|
757 static void
|
|
|
758 add_volume_info (char * root_dir, volume_info_data * info)
|
|
|
759 {
|
|
|
760 info->root_dir = xstrdup (root_dir);
|
|
|
761 info->next = volume_cache;
|
|
|
762 volume_cache = info;
|
|
|
763 }
|
|
|
764
|
|
|
765
|
|
|
766 /* Wrapper for GetVolumeInformation, which uses caching to avoid
|
|
|
767 performance penalty (~2ms on 486 for local drives, 7.5ms for local
|
|
|
768 cdrom drive, ~5-10ms or more for remote drives on LAN). */
|
|
|
769 volume_info_data *
|
|
|
770 GetCachedVolumeInformation (char * root_dir)
|
|
|
771 {
|
|
|
772 volume_info_data * info;
|
|
|
773 char default_root[ MAX_PATH ];
|
|
|
774
|
|
|
775 /* NULL for root_dir means use root from current directory. */
|
|
|
776 if (root_dir == NULL)
|
|
|
777 {
|
|
|
778 if (GetCurrentDirectory (MAX_PATH, default_root) == 0)
|
|
|
779 return NULL;
|
|
|
780 parse_root (default_root, &root_dir);
|
|
|
781 *root_dir = 0;
|
|
|
782 root_dir = default_root;
|
|
|
783 }
|
|
|
784
|
|
|
785 /* Local fixed drives can be cached permanently. Removable drives
|
|
|
786 cannot be cached permanently, since the volume name and serial
|
|
|
787 number (if nothing else) can change. Remote drives should be
|
|
|
788 treated as if they are removable, since there is no sure way to
|
|
|
789 tell whether they are or not. Also, the UNC association of drive
|
|
|
790 letters mapped to remote volumes can be changed at any time (even
|
|
|
791 by other processes) without notice.
|
|
|
792
|
|
|
793 As a compromise, so we can benefit from caching info for remote
|
|
|
794 volumes, we use a simple expiry mechanism to invalidate cache
|
|
|
795 entries that are more than ten seconds old. */
|
|
|
796
|
|
|
797 #if 0
|
|
|
798 /* No point doing this, because WNetGetConnection is even slower than
|
|
|
799 GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW,
|
|
|
800 GetDriveType is about the only call of this type which does not
|
|
|
801 involve network access, and so is extremely quick). */
|
|
|
802
|
|
|
803 /* Map drive letter to UNC if remote. */
|
|
|
804 if ( isalpha( root_dir[0] ) && !fixed[ DRIVE_INDEX( root_dir[0] ) ] )
|
|
|
805 {
|
|
|
806 char remote_name[ 256 ];
|
|
|
807 char drive[3] = { root_dir[0], ':' };
|
|
|
808
|
|
|
809 if (WNetGetConnection (drive, remote_name, sizeof (remote_name))
|
|
|
810 == NO_ERROR)
|
|
|
811 /* do something */ ;
|
|
|
812 }
|
|
|
813 #endif
|
|
|
814
|
|
|
815 info = lookup_volume_info (root_dir);
|
|
|
816
|
|
|
817 if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
|
|
|
818 {
|
|
|
819 char name[ 256 ];
|
|
|
820 DWORD serialnum;
|
|
|
821 DWORD maxcomp;
|
|
|
822 DWORD flags;
|
|
|
823 char type[ 256 ];
|
|
|
824
|
|
|
825 /* Info is not cached, or is stale. */
|
|
|
826 if (!GetVolumeInformation (root_dir,
|
|
|
827 name, sizeof (name),
|
|
|
828 &serialnum,
|
|
|
829 &maxcomp,
|
|
|
830 &flags,
|
|
|
831 type, sizeof (type)))
|
|
|
832 return NULL;
|
|
|
833
|
|
|
834 /* Cache the volume information for future use, overwriting existing
|
|
|
835 entry if present. */
|
|
|
836 if (info == NULL)
|
|
|
837 {
|
|
|
838 info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
|
|
|
839 add_volume_info (root_dir, info);
|
|
|
840 }
|
|
|
841 else
|
|
|
842 {
|
|
|
843 free (info->name);
|
|
|
844 free (info->type);
|
|
|
845 }
|
|
|
846
|
|
|
847 info->name = xstrdup (name);
|
|
|
848 info->serialnum = serialnum;
|
|
|
849 info->maxcomp = maxcomp;
|
|
|
850 info->flags = flags;
|
|
|
851 info->type = xstrdup (type);
|
|
|
852 info->timestamp = GetTickCount ();
|
|
|
853 }
|
|
|
854
|
|
|
855 return info;
|
|
|
856 }
|
|
|
857
|
|
|
858 /* Get information on the volume where name is held; set path pointer to
|
|
|
859 start of pathname in name (past UNC header\volume header if present). */
|
|
|
860 int
|
|
|
861 get_volume_info (const char * name, const char ** pPath)
|
|
|
862 {
|
|
|
863 char temp[MAX_PATH];
|
|
|
864 char *rootname = NULL; /* default to current volume */
|
|
|
865 volume_info_data * info;
|
|
|
866
|
|
|
867 if (name == NULL)
|
|
|
868 return FALSE;
|
|
|
869
|
|
|
870 /* find the root name of the volume if given */
|
|
|
871 if (isalpha (name[0]) && name[1] == ':')
|
|
|
872 {
|
|
|
873 rootname = temp;
|
|
|
874 temp[0] = *name++;
|
|
|
875 temp[1] = *name++;
|
|
|
876 temp[2] = '\\';
|
|
|
877 temp[3] = 0;
|
|
|
878 }
|
|
|
879 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
|
|
|
880 {
|
|
|
881 char *str = temp;
|
|
|
882 int slashes = 4;
|
|
|
883 rootname = temp;
|
|
|
884 do
|
|
|
885 {
|
|
|
886 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
|
|
|
887 break;
|
|
|
888 *str++ = *name++;
|
|
|
889 }
|
|
|
890 while ( *name );
|
|
|
891
|
|
|
892 *str++ = '\\';
|
|
|
893 *str = 0;
|
|
|
894 }
|
|
|
895
|
|
|
896 if (pPath)
|
|
|
897 *pPath = name;
|
|
|
898
|
|
|
899 info = GetCachedVolumeInformation (rootname);
|
|
|
900 if (info != NULL)
|
|
|
901 {
|
|
|
902 /* Set global referenced by other functions. */
|
|
|
903 volume_info = *info;
|
|
|
904 return TRUE;
|
|
|
905 }
|
|
|
906 return FALSE;
|
|
|
907 }
|
|
|
908
|
|
|
909 /* Determine if volume is FAT format (ie. only supports short 8.3
|
|
|
910 names); also set path pointer to start of pathname in name. */
|
|
|
911 int
|
|
|
912 is_fat_volume (const char * name, const char ** pPath)
|
|
|
913 {
|
|
|
914 if (get_volume_info (name, pPath))
|
|
|
915 return (volume_info.maxcomp == 12);
|
|
|
916 return FALSE;
|
|
|
917 }
|
|
|
918
|
|
|
919 /* Map filename to a legal 8.3 name if necessary. */
|
|
|
920 const char *
|
|
|
921 map_win32_filename (const char * name, const char ** pPath)
|
|
|
922 {
|
|
|
923 static char shortname[MAX_PATH];
|
|
|
924 char * str = shortname;
|
|
|
925 char c;
|
|
|
926 const char * path;
|
|
|
927 const char * save_name = name;
|
|
|
928
|
|
|
929 if (is_fat_volume (name, &path)) /* truncate to 8.3 */
|
|
|
930 {
|
|
|
931 REGISTER int left = 8; /* maximum number of chars in part */
|
|
|
932 REGISTER int extn = 0; /* extension added? */
|
|
|
933 REGISTER int dots = 2; /* maximum number of dots allowed */
|
|
|
934
|
|
|
935 while (name < path)
|
|
|
936 *str++ = *name++; /* skip past UNC header */
|
|
|
937
|
|
|
938 while ((c = *name++))
|
|
|
939 {
|
|
|
940 switch ( c )
|
|
|
941 {
|
|
|
942 case '\\':
|
|
|
943 case '/':
|
|
|
944 *str++ = '\\';
|
|
|
945 extn = 0; /* reset extension flags */
|
|
|
946 dots = 2; /* max 2 dots */
|
|
|
947 left = 8; /* max length 8 for main part */
|
|
|
948 break;
|
|
|
949 case ':':
|
|
|
950 *str++ = ':';
|
|
|
951 extn = 0; /* reset extension flags */
|
|
|
952 dots = 2; /* max 2 dots */
|
|
|
953 left = 8; /* max length 8 for main part */
|
|
|
954 break;
|
|
|
955 case '.':
|
|
|
956 if ( dots )
|
|
|
957 {
|
|
|
958 /* Convert path components of the form .xxx to _xxx,
|
|
|
959 but leave . and .. as they are. This allows .emacs
|
|
|
960 to be read as _emacs, for example. */
|
|
|
961
|
|
|
962 if (! *name ||
|
|
|
963 *name == '.' ||
|
|
|
964 IS_DIRECTORY_SEP (*name))
|
|
|
965 {
|
|
|
966 *str++ = '.';
|
|
|
967 dots--;
|
|
|
968 }
|
|
|
969 else
|
|
|
970 {
|
|
|
971 *str++ = '_';
|
|
|
972 left--;
|
|
|
973 dots = 0;
|
|
|
974 }
|
|
|
975 }
|
|
|
976 else if ( !extn )
|
|
|
977 {
|
|
|
978 *str++ = '.';
|
|
|
979 extn = 1; /* we've got an extension */
|
|
|
980 left = 3; /* 3 chars in extension */
|
|
|
981 }
|
|
|
982 else
|
|
|
983 {
|
|
|
984 /* any embedded dots after the first are converted to _ */
|
|
|
985 *str++ = '_';
|
|
|
986 }
|
|
|
987 break;
|
|
|
988 case '~':
|
|
|
989 case '#': /* don't lose these, they're important */
|
|
|
990 if ( ! left )
|
|
|
991 str[-1] = c; /* replace last character of part */
|
|
|
992 /* FALLTHRU */
|
|
|
993 default:
|
|
|
994 if ( left )
|
|
|
995 {
|
|
|
996 *str++ = tolower (c); /* map to lower case (looks nicer) */
|
|
|
997 left--;
|
|
|
998 dots = 0; /* started a path component */
|
|
|
999 }
|
|
|
1000 break;
|
|
|
1001 }
|
|
|
1002 }
|
|
|
1003 *str = '\0';
|
|
|
1004 }
|
|
|
1005 else
|
|
|
1006 {
|
|
|
1007 strcpy (shortname, name);
|
|
|
1008 unixtodos_filename (shortname);
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 if (pPath)
|
|
|
1012 *pPath = shortname + (path - save_name);
|
|
|
1013
|
|
|
1014 return shortname;
|
|
|
1015 }
|
|
|
1016
|
|
|
1017
|
|
|
1018 /* Emulate the Unix directory procedures opendir, closedir,
|
|
|
1019 and readdir. We can't use the procedures supplied in sysdep.c,
|
|
|
1020 so we provide them here. */
|
|
|
1021
|
|
|
1022 struct direct dir_static; /* simulated directory contents */
|
|
|
1023 static HANDLE dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1024 static int dir_is_fat;
|
|
|
1025 static char dir_pathname[MAXPATHLEN+1];
|
|
|
1026 static WIN32_FIND_DATA dir_find_data;
|
|
|
1027
|
|
|
1028 DIR *
|
|
|
1029 opendir (const char *filename)
|
|
|
1030 {
|
|
|
1031 DIR *dirp;
|
|
|
1032
|
|
|
1033 /* Opening is done by FindFirstFile. However, a read is inherent to
|
|
|
1034 this operation, so we defer the open until read time. */
|
|
|
1035
|
|
|
1036 if (!(dirp = xnew_and_zero(DIR)))
|
|
|
1037 return NULL;
|
|
|
1038 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1039 return NULL;
|
|
|
1040
|
|
|
1041 dirp->dd_fd = 0;
|
|
|
1042 dirp->dd_loc = 0;
|
|
|
1043 dirp->dd_size = 0;
|
|
|
1044
|
|
|
1045 strncpy (dir_pathname, map_win32_filename (filename, NULL), MAXPATHLEN);
|
|
|
1046 dir_pathname[MAXPATHLEN] = '\0';
|
|
|
1047 dir_is_fat = is_fat_volume (filename, NULL);
|
|
|
1048
|
|
|
1049 return dirp;
|
|
|
1050 }
|
|
|
1051
|
|
442
|
1052 int
|
|
428
|
1053 closedir (DIR *dirp)
|
|
|
1054 {
|
|
442
|
1055 BOOL retval;
|
|
|
1056
|
|
428
|
1057 /* If we have a find-handle open, close it. */
|
|
|
1058 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1059 {
|
|
442
|
1060 retval = FindClose (dir_find_handle);
|
|
428
|
1061 dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1062 }
|
|
|
1063 xfree (dirp);
|
|
442
|
1064 if (retval)
|
|
|
1065 return 0;
|
|
|
1066 else
|
|
|
1067 return -1;
|
|
428
|
1068 }
|
|
|
1069
|
|
|
1070 struct direct *
|
|
|
1071 readdir (DIR *dirp)
|
|
|
1072 {
|
|
|
1073 /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */
|
|
|
1074 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1075 {
|
|
|
1076 char filename[MAXNAMLEN + 3];
|
|
|
1077 int ln;
|
|
|
1078
|
|
|
1079 strcpy (filename, dir_pathname);
|
|
|
1080 ln = strlen (filename) - 1;
|
|
|
1081 if (!IS_DIRECTORY_SEP (filename[ln]))
|
|
|
1082 strcat (filename, "\\");
|
|
|
1083 strcat (filename, "*");
|
|
|
1084
|
|
|
1085 dir_find_handle = FindFirstFile (filename, &dir_find_data);
|
|
|
1086
|
|
|
1087 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1088 return NULL;
|
|
|
1089 }
|
|
|
1090 else
|
|
|
1091 {
|
|
|
1092 if (!FindNextFile (dir_find_handle, &dir_find_data))
|
|
|
1093 return NULL;
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 /* Emacs never uses this value, so don't bother making it match
|
|
442
|
1097 value returned by xemacs_stat(). */
|
|
428
|
1098 dir_static.d_ino = 1;
|
|
|
1099
|
|
|
1100 dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 +
|
|
|
1101 dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
1102
|
|
|
1103 dir_static.d_namlen = strlen (dir_find_data.cFileName);
|
|
|
1104 strcpy (dir_static.d_name, dir_find_data.cFileName);
|
|
|
1105 if (dir_is_fat)
|
|
|
1106 _strlwr (dir_static.d_name);
|
|
|
1107 else if (!NILP (Vmswindows_downcase_file_names))
|
|
|
1108 {
|
|
|
1109 REGISTER char *p;
|
|
|
1110 for (p = dir_static.d_name; *p; p++)
|
|
|
1111 if (*p >= 'a' && *p <= 'z')
|
|
|
1112 break;
|
|
|
1113 if (!*p)
|
|
|
1114 _strlwr (dir_static.d_name);
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 return &dir_static;
|
|
|
1118 }
|
|
|
1119
|
|
|
1120 #if 0
|
|
|
1121 /* #### Have to check if all that sad story about '95 is true - kkm */
|
|
|
1122 int
|
|
|
1123 sys_rename (const char * oldname, const char * newname)
|
|
|
1124 {
|
|
|
1125 char temp[MAX_PATH];
|
|
|
1126 DWORD attr;
|
|
|
1127
|
|
|
1128 /* MoveFile on Win95 doesn't correctly change the short file name
|
|
|
1129 alias in a number of circumstances (it is not easy to predict when
|
|
|
1130 just by looking at oldname and newname, unfortunately). In these
|
|
|
1131 cases, renaming through a temporary name avoids the problem.
|
|
|
1132
|
|
|
1133 A second problem on Win95 is that renaming through a temp name when
|
|
|
1134 newname is uppercase fails (the final long name ends up in
|
|
|
1135 lowercase, although the short alias might be uppercase) UNLESS the
|
|
|
1136 long temp name is not 8.3.
|
|
|
1137
|
|
|
1138 So, on Win95 we always rename through a temp name, and we make sure
|
|
|
1139 the temp name has a long extension to ensure correct renaming. */
|
|
|
1140
|
|
|
1141 strcpy (temp, map_win32_filename (oldname, NULL));
|
|
|
1142
|
|
|
1143 if (GetVersion () & 0x80000000)
|
|
|
1144 {
|
|
|
1145 char * p;
|
|
|
1146
|
|
|
1147 if (p = strrchr (temp, '\\'))
|
|
|
1148 p++;
|
|
|
1149 else
|
|
|
1150 p = temp;
|
|
|
1151 /* Force temp name to require a manufactured 8.3 alias - this
|
|
|
1152 seems to make the second rename work properly. */
|
|
|
1153 strcpy (p, "_rename_temp.XXXXXX");
|
|
|
1154 sys_mktemp (temp);
|
|
|
1155 if (rename (map_win32_filename (oldname, NULL), temp) < 0)
|
|
|
1156 return -1;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 /* Emulate Unix behavior - newname is deleted if it already exists
|
|
|
1160 (at least if it is a file; don't do this for directories).
|
|
|
1161 However, don't do this if we are just changing the case of the file
|
|
|
1162 name - we will end up deleting the file we are trying to rename! */
|
|
|
1163 newname = map_win32_filename (newname, NULL);
|
|
|
1164
|
|
|
1165 /* TODO: Use GetInformationByHandle (on NT) to ensure newname and temp
|
|
|
1166 do not refer to the same file, eg. through share aliases. */
|
|
|
1167 if (stricmp (newname, temp) != 0
|
|
|
1168 && (attr = GetFileAttributes (newname)) != -1
|
|
|
1169 && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0)
|
|
|
1170 {
|
|
|
1171 _chmod (newname, 0666);
|
|
|
1172 _unlink (newname);
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 return rename (temp, newname);
|
|
|
1176 }
|
|
|
1177 #endif /* 0 */
|
|
|
1178
|
|
|
1179 static FILETIME utc_base_ft;
|
|
440
|
1180 static int init = 0;
|
|
|
1181
|
|
|
1182 #if 0
|
|
|
1183
|
|
428
|
1184 static long double utc_base;
|
|
|
1185
|
|
|
1186 time_t
|
|
|
1187 convert_time (FILETIME ft)
|
|
|
1188 {
|
|
|
1189 long double ret;
|
|
|
1190
|
|
|
1191 if (!init)
|
|
|
1192 {
|
|
|
1193 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1194 SYSTEMTIME st;
|
|
|
1195
|
|
|
1196 st.wYear = 1970;
|
|
|
1197 st.wMonth = 1;
|
|
|
1198 st.wDay = 1;
|
|
|
1199 st.wHour = 0;
|
|
|
1200 st.wMinute = 0;
|
|
|
1201 st.wSecond = 0;
|
|
|
1202 st.wMilliseconds = 0;
|
|
|
1203
|
|
|
1204 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1205 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1206 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1207 init = 1;
|
|
|
1208 }
|
|
|
1209
|
|
|
1210 if (CompareFileTime (&ft, &utc_base_ft) < 0)
|
|
|
1211 return 0;
|
|
|
1212
|
|
|
1213 ret = (long double) ft.dwHighDateTime * 4096 * 1024 * 1024 + ft.dwLowDateTime;
|
|
|
1214 ret -= utc_base;
|
|
|
1215 return (time_t) (ret * 1e-7);
|
|
|
1216 }
|
|
440
|
1217 #else
|
|
|
1218
|
|
442
|
1219 #if defined(MINGW) && CYGWIN_VERSION_DLL_MAJOR <= 21
|
|
|
1220 #define LowPart u.LowPart
|
|
|
1221 #define HighPart u.HighPart
|
|
|
1222 #endif
|
|
|
1223
|
|
440
|
1224 static LARGE_INTEGER utc_base_li;
|
|
|
1225
|
|
|
1226 time_t
|
|
|
1227 convert_time (FILETIME uft)
|
|
|
1228 {
|
|
|
1229 time_t ret;
|
|
|
1230 #ifndef MAXLONGLONG
|
|
|
1231 SYSTEMTIME st;
|
|
|
1232 struct tm t;
|
|
|
1233 FILETIME ft;
|
|
|
1234 TIME_ZONE_INFORMATION tzi;
|
|
|
1235 DWORD tzid;
|
|
|
1236 #else
|
|
|
1237 LARGE_INTEGER lft;
|
|
|
1238 #endif
|
|
|
1239
|
|
|
1240 if (!init)
|
|
|
1241 {
|
|
|
1242 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1243 SYSTEMTIME st;
|
|
|
1244
|
|
|
1245 st.wYear = 1970;
|
|
|
1246 st.wMonth = 1;
|
|
|
1247 st.wDay = 1;
|
|
|
1248 st.wHour = 0;
|
|
|
1249 st.wMinute = 0;
|
|
|
1250 st.wSecond = 0;
|
|
|
1251 st.wMilliseconds = 0;
|
|
|
1252
|
|
|
1253 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1254
|
|
|
1255 utc_base_li.LowPart = utc_base_ft.dwLowDateTime;
|
|
|
1256 utc_base_li.HighPart = utc_base_ft.dwHighDateTime;
|
|
|
1257
|
|
|
1258 init = 1;
|
|
|
1259 }
|
|
|
1260
|
|
|
1261 #ifdef MAXLONGLONG
|
|
|
1262
|
|
|
1263 /* On a compiler that supports long integers, do it the easy way */
|
|
|
1264 lft.LowPart = uft.dwLowDateTime;
|
|
|
1265 lft.HighPart = uft.dwHighDateTime;
|
|
|
1266 ret = (time_t) ((lft.QuadPart - utc_base_li.QuadPart) / 10000000);
|
|
|
1267
|
|
|
1268 #else
|
|
|
1269
|
|
|
1270 /* Do it the hard way using mktime. */
|
|
|
1271 FileTimeToLocalFileTime(&uft, &ft);
|
|
|
1272 FileTimeToSystemTime (&ft, &st);
|
|
|
1273 tzid = GetTimeZoneInformation (&tzi);
|
|
|
1274 t.tm_year = st.wYear - 1900;
|
|
|
1275 t.tm_mon = st.wMonth - 1;
|
|
|
1276 t.tm_mday = st.wDay;
|
|
|
1277 t.tm_hour = st.wHour;
|
|
|
1278 t.tm_min = st.wMinute;
|
|
|
1279 t.tm_sec = st.wSecond;
|
|
|
1280 t.tm_isdst = (tzid == TIME_ZONE_ID_DAYLIGHT);
|
|
|
1281 /* st.wMilliseconds not applicable */
|
|
|
1282 ret = mktime(&t);
|
|
|
1283 if (ret == -1)
|
|
|
1284 {
|
|
|
1285 ret = 0;
|
|
|
1286 }
|
|
|
1287
|
|
|
1288 #endif
|
|
|
1289
|
|
|
1290 return ret;
|
|
|
1291 }
|
|
|
1292 #endif
|
|
442
|
1293 #if defined(MINGW) && CYGWIN_VERSION_DLL_MAJOR <= 21
|
|
|
1294 #undef LowPart
|
|
|
1295 #undef HighPart
|
|
|
1296 #endif
|
|
428
|
1297
|
|
|
1298 #if 0
|
|
|
1299 /* in case we ever have need of this */
|
|
|
1300 void
|
|
|
1301 convert_from_time_t (time_t time, FILETIME * pft)
|
|
|
1302 {
|
|
|
1303 long double tmp;
|
|
|
1304
|
|
|
1305 if (!init)
|
|
|
1306 {
|
|
|
1307 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1308 SYSTEMTIME st;
|
|
|
1309
|
|
|
1310 st.wYear = 1970;
|
|
|
1311 st.wMonth = 1;
|
|
|
1312 st.wDay = 1;
|
|
|
1313 st.wHour = 0;
|
|
|
1314 st.wMinute = 0;
|
|
|
1315 st.wSecond = 0;
|
|
|
1316 st.wMilliseconds = 0;
|
|
|
1317
|
|
|
1318 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1319 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1320 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1321 init = 1;
|
|
|
1322 }
|
|
|
1323
|
|
|
1324 /* time in 100ns units since 1-Jan-1601 */
|
|
|
1325 tmp = (long double) time * 1e7 + utc_base;
|
|
|
1326 pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024));
|
|
|
1327 pft->dwLowDateTime = (DWORD) (tmp - pft->dwHighDateTime);
|
|
|
1328 }
|
|
|
1329 #endif
|
|
|
1330
|
|
|
1331 #if 0
|
|
|
1332 /* No reason to keep this; faking inode values either by hashing or even
|
|
|
1333 using the file index from GetInformationByHandle, is not perfect and
|
|
|
1334 so by default Emacs doesn't use the inode values on Windows.
|
|
|
1335 Instead, we now determine file-truename correctly (except for
|
|
|
1336 possible drive aliasing etc). */
|
|
|
1337
|
|
|
1338 /* Modified version of "PJW" algorithm (see the "Dragon" compiler book). */
|
|
|
1339 static unsigned
|
|
|
1340 hashval (const unsigned char * str)
|
|
|
1341 {
|
|
|
1342 unsigned h = 0;
|
|
|
1343 while (*str)
|
|
|
1344 {
|
|
|
1345 h = (h << 4) + *str++;
|
|
|
1346 h ^= (h >> 28);
|
|
|
1347 }
|
|
|
1348 return h;
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 /* Return the hash value of the canonical pathname, excluding the
|
|
|
1352 drive/UNC header, to get a hopefully unique inode number. */
|
|
|
1353 static DWORD
|
|
|
1354 generate_inode_val (const char * name)
|
|
|
1355 {
|
|
|
1356 char fullname[ MAX_PATH ];
|
|
|
1357 char * p;
|
|
|
1358 unsigned hash;
|
|
|
1359
|
|
|
1360 /* Get the truly canonical filename, if it exists. (Note: this
|
|
|
1361 doesn't resolve aliasing due to subst commands, or recognize hard
|
|
|
1362 links. */
|
|
|
1363 if (!win32_get_long_filename ((char *)name, fullname, MAX_PATH))
|
|
|
1364 abort ();
|
|
|
1365
|
|
|
1366 parse_root (fullname, &p);
|
|
|
1367 /* Normal Win32 filesystems are still case insensitive. */
|
|
|
1368 _strlwr (p);
|
|
|
1369 return hashval (p);
|
|
|
1370 }
|
|
|
1371
|
|
|
1372 #endif
|
|
|
1373
|
|
442
|
1374 /* #### aichner@ecf.teradyne.com reported that with the library
|
|
|
1375 provided stat/fstat, (file-exist "d:\\tmp\\") =>> nil,
|
|
|
1376 (file-exist "d:\\tmp") =>> t, when d:\tmp exists. Whenever
|
|
|
1377 we opt to use non-encapsulated stat(), this should serve as
|
|
|
1378 a compatibility test. --kkm */
|
|
440
|
1379
|
|
432
|
1380 /* Since stat is encapsulated on Windows NT, we need to encapsulate
|
|
448
|
1381 the equally broken fstat as well. FSFmacs also provides its own
|
|
|
1382 utime. Is that necessary here too? */
|
|
442
|
1383 int
|
|
448
|
1384 mswindows_fstat (int desc, struct stat * buf)
|
|
432
|
1385 {
|
|
448
|
1386 HANDLE fh = (HANDLE) _get_osfhandle (desc);
|
|
|
1387 BY_HANDLE_FILE_INFORMATION info;
|
|
|
1388 DWORD fake_inode;
|
|
|
1389 int permission;
|
|
|
1390
|
|
|
1391 switch (GetFileType (fh) & ~FILE_TYPE_REMOTE)
|
|
432
|
1392 {
|
|
448
|
1393 case FILE_TYPE_DISK:
|
|
|
1394 buf->st_mode = _S_IFREG;
|
|
|
1395 if (!GetFileInformationByHandle (fh, &info))
|
|
|
1396 {
|
|
|
1397 errno = EACCES;
|
|
|
1398 return -1;
|
|
|
1399 }
|
|
|
1400 break;
|
|
|
1401 case FILE_TYPE_PIPE:
|
|
|
1402 buf->st_mode = _S_IFIFO;
|
|
|
1403 goto non_disk;
|
|
|
1404 case FILE_TYPE_CHAR:
|
|
|
1405 case FILE_TYPE_UNKNOWN:
|
|
|
1406 default:
|
|
|
1407 buf->st_mode = _S_IFCHR;
|
|
|
1408 non_disk:
|
|
|
1409 memset (&info, 0, sizeof (info));
|
|
|
1410 info.dwFileAttributes = 0;
|
|
|
1411 info.ftCreationTime = utc_base_ft;
|
|
|
1412 info.ftLastAccessTime = utc_base_ft;
|
|
|
1413 info.ftLastWriteTime = utc_base_ft;
|
|
|
1414 }
|
|
|
1415
|
|
|
1416 if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1417 {
|
|
|
1418 buf->st_mode = _S_IFDIR;
|
|
|
1419 buf->st_nlink = 2; /* doesn't really matter */
|
|
|
1420 fake_inode = 0; /* this doesn't either I think */
|
|
432
|
1421 }
|
|
|
1422 else
|
|
|
1423 {
|
|
448
|
1424 buf->st_nlink = info.nNumberOfLinks;
|
|
|
1425 /* Might as well use file index to fake inode values, but this
|
|
|
1426 is not guaranteed to be unique unless we keep a handle open
|
|
|
1427 all the time (even then there are situations where it is
|
|
|
1428 not unique). Reputedly, there are at most 48 bits of info
|
|
|
1429 (on NTFS, presumably less on FAT). */
|
|
|
1430 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh;
|
|
432
|
1431 }
|
|
448
|
1432
|
|
|
1433 /* MSVC defines _ino_t to be short; other libc's might not. */
|
|
|
1434 if (sizeof (buf->st_ino) == 2)
|
|
|
1435 buf->st_ino = fake_inode ^ (fake_inode >> 16);
|
|
|
1436 else
|
|
|
1437 buf->st_ino = fake_inode;
|
|
|
1438
|
|
|
1439 /* consider files to belong to current user */
|
|
|
1440 buf->st_uid = 0;
|
|
|
1441 buf->st_gid = 0;
|
|
|
1442
|
|
|
1443 buf->st_dev = info.dwVolumeSerialNumber;
|
|
|
1444 buf->st_rdev = info.dwVolumeSerialNumber;
|
|
|
1445
|
|
|
1446 buf->st_size = info.nFileSizeLow;
|
|
|
1447
|
|
|
1448 /* Convert timestamps to Unix format. */
|
|
|
1449 buf->st_mtime = convert_time (info.ftLastWriteTime);
|
|
|
1450 buf->st_atime = convert_time (info.ftLastAccessTime);
|
|
|
1451 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
|
|
|
1452 buf->st_ctime = convert_time (info.ftCreationTime);
|
|
|
1453 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
|
|
|
1454
|
|
|
1455 /* determine rwx permissions */
|
|
|
1456 if (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
|
|
|
1457 permission = _S_IREAD;
|
|
|
1458 else
|
|
|
1459 permission = _S_IREAD | _S_IWRITE;
|
|
|
1460
|
|
|
1461 if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1462 permission |= _S_IEXEC;
|
|
|
1463
|
|
|
1464 buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
|
|
|
1465
|
|
|
1466 return 0;
|
|
432
|
1467 }
|
|
|
1468
|
|
428
|
1469 /* MSVC stat function can't cope with UNC names and has other bugs, so
|
|
|
1470 replace it with our own. This also allows us to calculate consistent
|
|
|
1471 inode values without hacks in the main Emacs code. */
|
|
|
1472 int
|
|
442
|
1473 mswindows_stat (const char * path, struct stat * buf)
|
|
428
|
1474 {
|
|
|
1475 char * name;
|
|
|
1476 WIN32_FIND_DATA wfd;
|
|
|
1477 HANDLE fh;
|
|
|
1478 DWORD fake_inode;
|
|
|
1479 int permission;
|
|
|
1480 int len;
|
|
|
1481 int rootdir = FALSE;
|
|
|
1482
|
|
|
1483 if (path == NULL || buf == NULL)
|
|
|
1484 {
|
|
|
1485 errno = EFAULT;
|
|
|
1486 return -1;
|
|
|
1487 }
|
|
|
1488
|
|
|
1489 name = (char *) map_win32_filename (path, &path);
|
|
|
1490 /* must be valid filename, no wild cards */
|
|
|
1491 if (strchr (name, '*') || strchr (name, '?'))
|
|
|
1492 {
|
|
|
1493 errno = ENOENT;
|
|
|
1494 return -1;
|
|
|
1495 }
|
|
|
1496
|
|
|
1497 /* Remove trailing directory separator, unless name is the root
|
|
|
1498 directory of a drive or UNC volume in which case ensure there
|
|
|
1499 is a trailing separator. */
|
|
|
1500 len = strlen (name);
|
|
|
1501 rootdir = (path >= name + len - 1
|
|
|
1502 && (IS_DIRECTORY_SEP (*path) || *path == 0));
|
|
442
|
1503 name = strcpy ((char *)alloca (len + 2), name);
|
|
428
|
1504
|
|
|
1505 if (rootdir)
|
|
|
1506 {
|
|
|
1507 if (!IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1508 strcat (name, "\\");
|
|
|
1509 if (GetDriveType (name) < 2)
|
|
|
1510 {
|
|
|
1511 errno = ENOENT;
|
|
|
1512 return -1;
|
|
|
1513 }
|
|
|
1514 memset (&wfd, 0, sizeof (wfd));
|
|
|
1515 wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
|
|
|
1516 wfd.ftCreationTime = utc_base_ft;
|
|
|
1517 wfd.ftLastAccessTime = utc_base_ft;
|
|
|
1518 wfd.ftLastWriteTime = utc_base_ft;
|
|
|
1519 strcpy (wfd.cFileName, name);
|
|
|
1520 }
|
|
|
1521 else
|
|
|
1522 {
|
|
|
1523 if (IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1524 name[len - 1] = 0;
|
|
|
1525
|
|
|
1526 /* (This is hacky, but helps when doing file completions on
|
|
|
1527 network drives.) Optimize by using information available from
|
|
|
1528 active readdir if possible. */
|
|
|
1529 if (dir_find_handle != INVALID_HANDLE_VALUE &&
|
|
|
1530 (len = strlen (dir_pathname)),
|
|
|
1531 strnicmp (name, dir_pathname, len) == 0 &&
|
|
|
1532 IS_DIRECTORY_SEP (name[len]) &&
|
|
|
1533 stricmp (name + len + 1, dir_static.d_name) == 0)
|
|
|
1534 {
|
|
|
1535 /* This was the last entry returned by readdir. */
|
|
|
1536 wfd = dir_find_data;
|
|
|
1537 }
|
|
|
1538 else
|
|
|
1539 {
|
|
|
1540 fh = FindFirstFile (name, &wfd);
|
|
|
1541 if (fh == INVALID_HANDLE_VALUE)
|
|
|
1542 {
|
|
|
1543 errno = ENOENT;
|
|
|
1544 return -1;
|
|
|
1545 }
|
|
|
1546 FindClose (fh);
|
|
|
1547 }
|
|
|
1548 }
|
|
|
1549
|
|
|
1550 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1551 {
|
|
|
1552 buf->st_mode = _S_IFDIR;
|
|
|
1553 buf->st_nlink = 2; /* doesn't really matter */
|
|
|
1554 fake_inode = 0; /* this doesn't either I think */
|
|
|
1555 }
|
|
|
1556 else if (!NILP (Vmswindows_get_true_file_attributes))
|
|
|
1557 {
|
|
|
1558 /* This is more accurate in terms of getting the correct number
|
|
|
1559 of links, but is quite slow (it is noticeable when Emacs is
|
|
|
1560 making a list of file name completions). */
|
|
|
1561 BY_HANDLE_FILE_INFORMATION info;
|
|
|
1562
|
|
|
1563 /* No access rights required to get info. */
|
|
|
1564 fh = CreateFile (name, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
|
|
1565 OPEN_EXISTING, 0, NULL);
|
|
|
1566
|
|
|
1567 if (GetFileInformationByHandle (fh, &info))
|
|
|
1568 {
|
|
|
1569 switch (GetFileType (fh))
|
|
|
1570 {
|
|
|
1571 case FILE_TYPE_DISK:
|
|
|
1572 buf->st_mode = _S_IFREG;
|
|
|
1573 break;
|
|
|
1574 case FILE_TYPE_PIPE:
|
|
|
1575 buf->st_mode = _S_IFIFO;
|
|
|
1576 break;
|
|
|
1577 case FILE_TYPE_CHAR:
|
|
|
1578 case FILE_TYPE_UNKNOWN:
|
|
|
1579 default:
|
|
|
1580 buf->st_mode = _S_IFCHR;
|
|
|
1581 }
|
|
|
1582 buf->st_nlink = (short) info.nNumberOfLinks;
|
|
|
1583 /* Might as well use file index to fake inode values, but this
|
|
|
1584 is not guaranteed to be unique unless we keep a handle open
|
|
|
1585 all the time (even then there are situations where it is
|
|
|
1586 not unique). Reputedly, there are at most 48 bits of info
|
|
|
1587 (on NTFS, presumably less on FAT). */
|
|
|
1588 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh;
|
|
|
1589 CloseHandle (fh);
|
|
|
1590 }
|
|
|
1591 else
|
|
|
1592 {
|
|
|
1593 errno = EACCES;
|
|
|
1594 return -1;
|
|
|
1595 }
|
|
|
1596 }
|
|
|
1597 else
|
|
|
1598 {
|
|
|
1599 /* Don't bother to make this information more accurate. */
|
|
|
1600 buf->st_mode = _S_IFREG;
|
|
|
1601 buf->st_nlink = 1;
|
|
|
1602 fake_inode = 0;
|
|
|
1603 }
|
|
|
1604
|
|
|
1605 #if 0
|
|
|
1606 /* Not sure if there is any point in this. */
|
|
|
1607 if (!NILP (Vwin32_generate_fake_inodes))
|
|
|
1608 fake_inode = generate_inode_val (name);
|
|
|
1609 else if (fake_inode == 0)
|
|
|
1610 {
|
|
|
1611 /* For want of something better, try to make everything unique. */
|
|
|
1612 static DWORD gen_num = 0;
|
|
|
1613 fake_inode = ++gen_num;
|
|
|
1614 }
|
|
|
1615 #endif
|
|
|
1616
|
|
|
1617 /* #### MSVC defines _ino_t to be short; other libc's might not. */
|
|
|
1618 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16));
|
|
|
1619
|
|
|
1620 /* consider files to belong to current user */
|
|
440
|
1621 buf->st_uid = buf->st_gid = nt_fake_unix_uid;
|
|
428
|
1622
|
|
|
1623 /* volume_info is set indirectly by map_win32_filename */
|
|
|
1624 buf->st_dev = volume_info.serialnum;
|
|
|
1625 buf->st_rdev = volume_info.serialnum;
|
|
|
1626
|
|
|
1627 buf->st_size = wfd.nFileSizeLow;
|
|
|
1628
|
|
|
1629 /* Convert timestamps to Unix format. */
|
|
|
1630 buf->st_mtime = convert_time (wfd.ftLastWriteTime);
|
|
|
1631 buf->st_atime = convert_time (wfd.ftLastAccessTime);
|
|
|
1632 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
|
|
|
1633 buf->st_ctime = convert_time (wfd.ftCreationTime);
|
|
|
1634 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
|
|
|
1635
|
|
|
1636 /* determine rwx permissions */
|
|
|
1637 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
|
|
|
1638 permission = _S_IREAD;
|
|
|
1639 else
|
|
|
1640 permission = _S_IREAD | _S_IWRITE;
|
|
|
1641
|
|
|
1642 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1643 permission |= _S_IEXEC;
|
|
|
1644 else
|
|
|
1645 {
|
|
|
1646 char * p = strrchr (name, '.');
|
|
|
1647 if (p != NULL &&
|
|
|
1648 (stricmp (p, ".exe") == 0 ||
|
|
|
1649 stricmp (p, ".com") == 0 ||
|
|
|
1650 stricmp (p, ".bat") == 0 ||
|
|
|
1651 stricmp (p, ".cmd") == 0))
|
|
|
1652 permission |= _S_IEXEC;
|
|
|
1653 }
|
|
|
1654
|
|
|
1655 buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
|
|
|
1656
|
|
|
1657 return 0;
|
|
|
1658 }
|
|
|
1659
|
|
|
1660 /* From callproc.c */
|
|
|
1661 extern Lisp_Object Vbinary_process_input;
|
|
|
1662 extern Lisp_Object Vbinary_process_output;
|
|
|
1663
|
|
|
1664 /* Unix pipe() has only one arg */
|
|
|
1665 int
|
|
|
1666 sys_pipe (int * phandles)
|
|
|
1667 {
|
|
|
1668 int rc;
|
|
|
1669 unsigned flags;
|
|
|
1670
|
|
|
1671 /* make pipe handles non-inheritable; when we spawn a child, we
|
|
|
1672 replace the relevant handle with an inheritable one. Also put
|
|
|
1673 pipes into binary mode; we will do text mode translation ourselves
|
|
|
1674 if required. */
|
|
|
1675 rc = _pipe (phandles, 0, _O_NOINHERIT | _O_BINARY);
|
|
|
1676
|
|
|
1677 if (rc == 0)
|
|
|
1678 {
|
|
|
1679 flags = FILE_PIPE | FILE_READ;
|
|
|
1680 if (!NILP (Vbinary_process_output))
|
|
|
1681 flags |= FILE_BINARY;
|
|
|
1682 fd_info[phandles[0]].flags = flags;
|
|
|
1683
|
|
|
1684 flags = FILE_PIPE | FILE_WRITE;
|
|
|
1685 if (!NILP (Vbinary_process_input))
|
|
|
1686 flags |= FILE_BINARY;
|
|
|
1687 fd_info[phandles[1]].flags = flags;
|
|
|
1688 }
|
|
|
1689
|
|
|
1690 return rc;
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 void
|
|
|
1694 term_ntproc (int unused)
|
|
|
1695 {
|
|
|
1696 }
|
|
|
1697
|
|
|
1698 void
|
|
442
|
1699 init_ntproc (void)
|
|
428
|
1700 {
|
|
|
1701 /* Initial preparation for subprocess support: replace our standard
|
|
|
1702 handles with non-inheritable versions. */
|
|
|
1703 {
|
|
|
1704 HANDLE parent;
|
|
|
1705 HANDLE stdin_save = INVALID_HANDLE_VALUE;
|
|
|
1706 HANDLE stdout_save = INVALID_HANDLE_VALUE;
|
|
|
1707 HANDLE stderr_save = INVALID_HANDLE_VALUE;
|
|
|
1708
|
|
|
1709 parent = GetCurrentProcess ();
|
|
|
1710
|
|
|
1711 /* ignore errors when duplicating and closing; typically the
|
|
|
1712 handles will be invalid when running as a gui program. */
|
|
|
1713 DuplicateHandle (parent,
|
|
|
1714 GetStdHandle (STD_INPUT_HANDLE),
|
|
|
1715 parent,
|
|
|
1716 &stdin_save,
|
|
|
1717 0,
|
|
|
1718 FALSE,
|
|
|
1719 DUPLICATE_SAME_ACCESS);
|
|
|
1720
|
|
|
1721 DuplicateHandle (parent,
|
|
|
1722 GetStdHandle (STD_OUTPUT_HANDLE),
|
|
|
1723 parent,
|
|
|
1724 &stdout_save,
|
|
|
1725 0,
|
|
|
1726 FALSE,
|
|
|
1727 DUPLICATE_SAME_ACCESS);
|
|
|
1728
|
|
|
1729 DuplicateHandle (parent,
|
|
|
1730 GetStdHandle (STD_ERROR_HANDLE),
|
|
|
1731 parent,
|
|
|
1732 &stderr_save,
|
|
|
1733 0,
|
|
|
1734 FALSE,
|
|
|
1735 DUPLICATE_SAME_ACCESS);
|
|
|
1736
|
|
|
1737 fclose (stdin);
|
|
|
1738 fclose (stdout);
|
|
|
1739 fclose (stderr);
|
|
|
1740
|
|
|
1741 if (stdin_save != INVALID_HANDLE_VALUE)
|
|
|
1742 _open_osfhandle ((long) stdin_save, O_TEXT);
|
|
|
1743 else
|
|
|
1744 _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY);
|
|
|
1745 _fdopen (0, "r");
|
|
|
1746
|
|
|
1747 if (stdout_save != INVALID_HANDLE_VALUE)
|
|
|
1748 _open_osfhandle ((long) stdout_save, O_TEXT);
|
|
|
1749 else
|
|
|
1750 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
|
1751 _fdopen (1, "w");
|
|
|
1752
|
|
|
1753 if (stderr_save != INVALID_HANDLE_VALUE)
|
|
|
1754 _open_osfhandle ((long) stderr_save, O_TEXT);
|
|
|
1755 else
|
|
|
1756 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
|
1757 _fdopen (2, "w");
|
|
|
1758 }
|
|
|
1759
|
|
|
1760 /* unfortunately, atexit depends on implementation of malloc */
|
|
|
1761 /* atexit (term_ntproc); */
|
|
|
1762 signal (SIGABRT, term_ntproc);
|
|
|
1763
|
|
|
1764 /* determine which drives are fixed, for GetCachedVolumeInformation */
|
|
|
1765 {
|
|
|
1766 /* GetDriveType must have trailing backslash. */
|
|
|
1767 char drive[] = "A:\\";
|
|
|
1768
|
|
|
1769 /* Loop over all possible drive letters */
|
|
|
1770 while ( *drive <= 'Z' )
|
|
|
1771 {
|
|
|
1772 /* Record if this drive letter refers to a fixed drive. */
|
|
|
1773 fixed_drives[ DRIVE_INDEX (*drive) ] =
|
|
|
1774 (GetDriveType (drive) == DRIVE_FIXED);
|
|
|
1775
|
|
|
1776 (*drive)++;
|
|
|
1777 }
|
|
|
1778 }
|
|
|
1779 }
|
|
|
1780 #ifndef HAVE_TTY
|
|
|
1781 Lisp_Object
|
|
|
1782 tty_semi_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1783 Error_behavior errb)
|
|
|
1784 {
|
|
|
1785 return Vstdio_str;
|
|
|
1786 }
|
|
|
1787
|
|
|
1788 Lisp_Object
|
|
|
1789 tty_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1790 Error_behavior errb)
|
|
|
1791 {
|
|
|
1792 return Vstdio_str;
|
|
|
1793 }
|
|
|
1794
|
|
|
1795 Lisp_Object
|
|
|
1796 tty_semi_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1797 Error_behavior errb)
|
|
|
1798 {
|
|
|
1799 return Vstdio_str;
|
|
|
1800 }
|
|
|
1801
|
|
|
1802 Lisp_Object
|
|
|
1803 tty_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1804 Error_behavior errb)
|
|
|
1805 {
|
|
|
1806 return Vstdio_str;
|
|
|
1807 }
|
|
|
1808 #endif
|
|
|
1809
|
|
|
1810 /*--------------------------------------------------------------------*/
|
|
|
1811 /* Signal support */
|
|
|
1812 /*--------------------------------------------------------------------*/
|
|
|
1813
|
|
|
1814 /* We need MS-defined signal and raise here */
|
|
|
1815 #undef signal
|
|
|
1816 #undef raise
|
|
|
1817
|
|
|
1818 #define sigmask(nsig) (1U << nsig)
|
|
|
1819
|
|
|
1820 /* We can support as many signals as fit into word */
|
|
|
1821 #define SIG_MAX 32
|
|
|
1822
|
|
|
1823 /* Signal handlers. Initial value = 0 = SIG_DFL */
|
|
|
1824 static void (__cdecl *signal_handlers[SIG_MAX])(int) = {0};
|
|
|
1825
|
|
|
1826 /* Signal block mask: bit set to 1 means blocked */
|
|
|
1827 unsigned signal_block_mask = 0;
|
|
|
1828
|
|
|
1829 /* Signal pending mask: bit set to 1 means sig is pending */
|
|
|
1830 unsigned signal_pending_mask = 0;
|
|
|
1831
|
|
442
|
1832 mswindows_sighandler mswindows_sigset (int nsig, mswindows_sighandler handler)
|
|
428
|
1833 {
|
|
|
1834 /* We delegate some signals to the system function */
|
|
|
1835 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
|
1836 return signal (nsig, handler);
|
|
|
1837
|
|
|
1838 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1839 {
|
|
|
1840 errno = EINVAL;
|
|
|
1841 return NULL;
|
|
|
1842 }
|
|
|
1843
|
|
|
1844 /* Store handler ptr */
|
|
|
1845 {
|
|
442
|
1846 mswindows_sighandler old_handler = signal_handlers[nsig];
|
|
428
|
1847 signal_handlers[nsig] = handler;
|
|
|
1848 return old_handler;
|
|
|
1849 }
|
|
|
1850 }
|
|
|
1851
|
|
442
|
1852 int mswindows_sighold (int nsig)
|
|
428
|
1853 {
|
|
|
1854 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1855 return errno = EINVAL;
|
|
|
1856
|
|
|
1857 signal_block_mask |= sigmask(nsig);
|
|
|
1858 return 0;
|
|
|
1859 }
|
|
|
1860
|
|
442
|
1861 int mswindows_sigrelse (int nsig)
|
|
428
|
1862 {
|
|
|
1863 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1864 return errno = EINVAL;
|
|
|
1865
|
|
|
1866 signal_block_mask &= ~sigmask(nsig);
|
|
|
1867
|
|
|
1868 if (signal_pending_mask & sigmask(nsig))
|
|
442
|
1869 mswindows_raise (nsig);
|
|
428
|
1870
|
|
|
1871 return 0;
|
|
|
1872 }
|
|
|
1873
|
|
442
|
1874 int mswindows_sigpause (int nsig)
|
|
428
|
1875 {
|
|
|
1876 /* This is currently not called, because the only
|
|
|
1877 call to sigpause inside XEmacs is with SIGCHLD
|
|
|
1878 parameter. Just in case, we put an assert here,
|
|
|
1879 so anyone who will add a call to sigpause will
|
|
|
1880 be surprised (or surprise someone else...) */
|
|
|
1881 assert (0);
|
|
|
1882 return 0;
|
|
|
1883 }
|
|
|
1884
|
|
442
|
1885 int mswindows_raise (int nsig)
|
|
428
|
1886 {
|
|
|
1887 /* We delegate some raises to the system routine */
|
|
|
1888 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
|
1889 return raise (nsig);
|
|
|
1890
|
|
|
1891 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1892 return errno = EINVAL;
|
|
|
1893
|
|
|
1894 /* If the signal is blocked, remember to issue later */
|
|
|
1895 if (signal_block_mask & sigmask(nsig))
|
|
|
1896 {
|
|
|
1897 signal_pending_mask |= sigmask(nsig);
|
|
|
1898 return 0;
|
|
|
1899 }
|
|
|
1900
|
|
|
1901 if (signal_handlers[nsig] == SIG_IGN)
|
|
|
1902 return 0;
|
|
|
1903
|
|
|
1904 if (signal_handlers[nsig] != SIG_DFL)
|
|
|
1905 {
|
|
|
1906 (*signal_handlers[nsig])(nsig);
|
|
|
1907 return 0;
|
|
|
1908 }
|
|
|
1909
|
|
|
1910 /* Default signal actions */
|
|
|
1911 if (nsig == SIGALRM || nsig == SIGPROF)
|
|
|
1912 exit (3);
|
|
|
1913
|
|
|
1914 /* Other signals are ignored by default */
|
|
|
1915 return 0;
|
|
|
1916 }
|
|
|
1917
|
|
|
1918 /*--------------------------------------------------------------------*/
|
|
|
1919 /* Async timers */
|
|
|
1920 /*--------------------------------------------------------------------*/
|
|
|
1921
|
|
|
1922 /* We emulate two timers, one for SIGALRM, another for SIGPROF.
|
|
|
1923
|
|
|
1924 itimerproc() function has an implementation limitation: it does
|
|
|
1925 not allow to set *both* interval and period. If an attempt is
|
|
|
1926 made to set both, and then they are unequal, the function
|
|
|
1927 asserts.
|
|
|
1928
|
|
|
1929 Minimum timer resolution on Win32 systems varies, and is greater
|
|
|
1930 than or equal than 1 ms. The resolution is always wrapped not to
|
|
|
1931 attempt to get below the system defined limit.
|
|
|
1932 */
|
|
|
1933
|
|
|
1934 /* Timer precision, denominator of one fraction: for 100 ms
|
|
|
1935 interval, request 10 ms precision
|
|
|
1936 */
|
|
|
1937 const int timer_prec = 10;
|
|
|
1938
|
|
|
1939 /* Last itimervals, as set by calls to setitimer */
|
|
|
1940 static struct itimerval it_alarm;
|
|
|
1941 static struct itimerval it_prof;
|
|
|
1942
|
|
|
1943 /* Timer IDs as returned by MM */
|
|
|
1944 MMRESULT tid_alarm = 0;
|
|
|
1945 MMRESULT tid_prof = 0;
|
|
|
1946
|
|
|
1947 static void CALLBACK timer_proc (UINT uID, UINT uMsg, DWORD dwUser,
|
|
|
1948 DWORD dw1, DWORD dw2)
|
|
|
1949 {
|
|
|
1950 /* Just raise a signal indicated by dwUser parameter */
|
|
442
|
1951 mswindows_raise (dwUser);
|
|
428
|
1952 }
|
|
|
1953
|
|
|
1954 /* Divide time in ms specified by IT by DENOM. Return 1 ms
|
|
|
1955 if division results in zero */
|
|
|
1956 static UINT period (const struct itimerval* it, UINT denom)
|
|
|
1957 {
|
|
|
1958 static TIMECAPS time_caps;
|
|
|
1959
|
|
|
1960 UINT res;
|
|
|
1961 const struct timeval* tv =
|
|
|
1962 (it->it_value.tv_sec == 0 && it->it_value.tv_usec == 0)
|
|
|
1963 ? &it->it_interval : &it->it_value;
|
|
|
1964
|
|
|
1965 /* Zero means stop timer */
|
|
|
1966 if (tv->tv_sec == 0 && tv->tv_usec == 0)
|
|
|
1967 return 0;
|
|
|
1968
|
|
|
1969 /* Convert to ms and divide by denom */
|
|
|
1970 res = (tv->tv_sec * 1000 + (tv->tv_usec + 500) / 1000) / denom;
|
|
|
1971
|
|
|
1972 /* Converge to minimum timer resolution */
|
|
|
1973 if (time_caps.wPeriodMin == 0)
|
|
|
1974 timeGetDevCaps (&time_caps, sizeof(time_caps));
|
|
|
1975
|
|
|
1976 if (res < time_caps.wPeriodMin)
|
|
|
1977 res = time_caps.wPeriodMin;
|
|
|
1978
|
|
|
1979 return res;
|
|
|
1980 }
|
|
|
1981
|
|
|
1982 static int setitimer_helper (const struct itimerval* itnew,
|
|
|
1983 struct itimerval* itold, struct itimerval* itcurrent,
|
|
|
1984 MMRESULT* tid, DWORD sigkind)
|
|
|
1985 {
|
|
|
1986 UINT delay, resolution, event_type;
|
|
|
1987
|
|
|
1988 /* First stop the old timer */
|
|
|
1989 if (*tid)
|
|
|
1990 {
|
|
|
1991 timeKillEvent (*tid);
|
|
|
1992 timeEndPeriod (period (itcurrent, timer_prec));
|
|
|
1993 *tid = 0;
|
|
|
1994 }
|
|
|
1995
|
|
|
1996 /* Return old itimerval if requested */
|
|
|
1997 if (itold)
|
|
|
1998 *itold = *itcurrent;
|
|
|
1999
|
|
|
2000 *itcurrent = *itnew;
|
|
|
2001
|
|
|
2002 /* Determine if to start new timer */
|
|
|
2003 delay = period (itnew, 1);
|
|
|
2004 if (delay)
|
|
|
2005 {
|
|
|
2006 resolution = period (itnew, timer_prec);
|
|
|
2007 event_type = (itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
2008 ? TIME_ONESHOT : TIME_PERIODIC;
|
|
|
2009 timeBeginPeriod (resolution);
|
|
|
2010 *tid = timeSetEvent (delay, resolution, timer_proc, sigkind, event_type);
|
|
|
2011 }
|
|
|
2012
|
|
|
2013 return !delay || *tid;
|
|
|
2014 }
|
|
|
2015
|
|
|
2016 int setitimer (int kind, const struct itimerval* itnew,
|
|
|
2017 struct itimerval* itold)
|
|
|
2018 {
|
|
|
2019 /* In this version, both interval and value are allowed
|
|
|
2020 only if they are equal. */
|
|
|
2021 assert ((itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
2022 || (itnew->it_interval.tv_sec == 0 && itnew->it_interval.tv_usec == 0)
|
|
|
2023 || (itnew->it_value.tv_sec == itnew->it_interval.tv_sec &&
|
|
|
2024 itnew->it_value.tv_usec == itnew->it_interval.tv_usec));
|
|
|
2025
|
|
|
2026 if (kind == ITIMER_REAL)
|
|
|
2027 return setitimer_helper (itnew, itold, &it_alarm, &tid_alarm, SIGALRM);
|
|
|
2028 else if (kind == ITIMER_PROF)
|
|
|
2029 return setitimer_helper (itnew, itold, &it_prof, &tid_prof, SIGPROF);
|
|
|
2030 else
|
|
|
2031 return errno = EINVAL;
|
|
|
2032 }
|
|
|
2033
|
|
442
|
2034
|
|
|
2035 /*--------------------------------------------------------------------*/
|
|
|
2036 /* Memory-mapped files */
|
|
|
2037 /*--------------------------------------------------------------------*/
|
|
|
2038
|
|
428
|
2039 int
|
|
442
|
2040 open_input_file (file_data *p_file, const char *filename)
|
|
428
|
2041 {
|
|
442
|
2042 /* Synched with FSF 20.6. We fixed some warnings. */
|
|
428
|
2043 HANDLE file;
|
|
|
2044 HANDLE file_mapping;
|
|
|
2045 void *file_base;
|
|
|
2046 DWORD size, upper_size;
|
|
|
2047
|
|
|
2048 file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL,
|
|
|
2049 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
|
|
|
2050 if (file == INVALID_HANDLE_VALUE)
|
|
|
2051 return FALSE;
|
|
|
2052
|
|
|
2053 size = GetFileSize (file, &upper_size);
|
|
|
2054 file_mapping = CreateFileMapping (file, NULL, PAGE_READONLY,
|
|
|
2055 0, size, NULL);
|
|
|
2056 if (!file_mapping)
|
|
|
2057 return FALSE;
|
|
|
2058
|
|
|
2059 file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size);
|
|
|
2060 if (file_base == 0)
|
|
|
2061 return FALSE;
|
|
|
2062
|
|
442
|
2063 p_file->name = (char *)filename;
|
|
|
2064 p_file->size = size;
|
|
|
2065 p_file->file = file;
|
|
|
2066 p_file->file_mapping = file_mapping;
|
|
|
2067 p_file->file_base = (char *)file_base;
|
|
|
2068
|
|
|
2069 return TRUE;
|
|
|
2070 }
|
|
|
2071
|
|
|
2072 int
|
|
|
2073 open_output_file (file_data *p_file, const char *filename, unsigned long size)
|
|
|
2074 {
|
|
|
2075 /* Synched with FSF 20.6. We fixed some warnings. */
|
|
|
2076 HANDLE file;
|
|
|
2077 HANDLE file_mapping;
|
|
|
2078 void *file_base;
|
|
|
2079
|
|
|
2080 file = CreateFile (filename, GENERIC_READ | GENERIC_WRITE, 0, NULL,
|
|
|
2081 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
|
|
|
2082 if (file == INVALID_HANDLE_VALUE)
|
|
|
2083 return FALSE;
|
|
|
2084
|
|
|
2085 file_mapping = CreateFileMapping (file, NULL, PAGE_READWRITE,
|
|
|
2086 0, size, NULL);
|
|
|
2087 if (!file_mapping)
|
|
|
2088 return FALSE;
|
|
|
2089
|
|
|
2090 file_base = MapViewOfFile (file_mapping, FILE_MAP_WRITE, 0, 0, size);
|
|
|
2091 if (file_base == NULL)
|
|
|
2092 return FALSE;
|
|
|
2093
|
|
|
2094 p_file->name = filename;
|
|
428
|
2095 p_file->size = size;
|
|
|
2096 p_file->file = file;
|
|
|
2097 p_file->file_mapping = file_mapping;
|
|
442
|
2098 p_file->file_base = (char*) file_base;
|
|
428
|
2099
|
|
|
2100 return TRUE;
|
|
|
2101 }
|
|
|
2102
|
|
442
|
2103 #if 1 /* !defined(MINGW) */
|
|
|
2104 /* Return pointer to section header for section containing the given
|
|
|
2105 relative virtual address. */
|
|
|
2106 static IMAGE_SECTION_HEADER *
|
|
|
2107 rva_to_section (DWORD rva, IMAGE_NT_HEADERS * nt_header)
|
|
|
2108 {
|
|
|
2109 /* Synched with FSF 20.6. We added MINGW stuff. */
|
|
|
2110 PIMAGE_SECTION_HEADER section;
|
|
|
2111 int i;
|
|
|
2112
|
|
|
2113 section = IMAGE_FIRST_SECTION (nt_header);
|
|
|
2114
|
|
|
2115 for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++)
|
|
|
2116 {
|
|
|
2117 /* Some linkers (eg. the NT SDK linker I believe) swapped the
|
|
|
2118 meaning of these two values - or rather, they ignored
|
|
|
2119 VirtualSize entirely and always set it to zero. This affects
|
|
|
2120 some very old exes (eg. gzip dated Dec 1993). Since
|
|
|
2121 mswindows_executable_type relies on this function to work reliably,
|
|
|
2122 we need to cope with this. */
|
|
|
2123 DWORD real_size = max (section->SizeOfRawData,
|
|
|
2124 section->Misc.VirtualSize);
|
|
|
2125 if (rva >= section->VirtualAddress
|
|
|
2126 && rva < section->VirtualAddress + real_size)
|
|
|
2127 return section;
|
|
|
2128 section++;
|
|
|
2129 }
|
|
|
2130 return NULL;
|
|
|
2131 }
|
|
|
2132 #endif
|
|
|
2133
|
|
|
2134 void
|
|
|
2135 mswindows_executable_type (const char * filename, int * is_dos_app,
|
|
|
2136 int * is_cygnus_app)
|
|
|
2137 {
|
|
|
2138 /* Synched with FSF 20.6. We added MINGW stuff and casts. */
|
|
|
2139 file_data executable;
|
|
|
2140 char * p;
|
|
|
2141
|
|
|
2142 /* Default values in case we can't tell for sure. */
|
|
|
2143 *is_dos_app = FALSE;
|
|
|
2144 *is_cygnus_app = FALSE;
|
|
|
2145
|
|
|
2146 if (!open_input_file (&executable, filename))
|
|
|
2147 return;
|
|
|
2148
|
|
|
2149 p = strrchr (filename, '.');
|
|
|
2150
|
|
|
2151 /* We can only identify DOS .com programs from the extension. */
|
|
|
2152 if (p && stricmp (p, ".com") == 0)
|
|
|
2153 *is_dos_app = TRUE;
|
|
|
2154 else if (p && (stricmp (p, ".bat") == 0 ||
|
|
|
2155 stricmp (p, ".cmd") == 0))
|
|
|
2156 {
|
|
|
2157 /* A DOS shell script - it appears that CreateProcess is happy to
|
|
|
2158 accept this (somewhat surprisingly); presumably it looks at
|
|
|
2159 COMSPEC to determine what executable to actually invoke.
|
|
|
2160 Therefore, we have to do the same here as well. */
|
|
|
2161 /* Actually, I think it uses the program association for that
|
|
|
2162 extension, which is defined in the registry. */
|
|
|
2163 p = egetenv ("COMSPEC");
|
|
|
2164 if (p)
|
|
|
2165 mswindows_executable_type (p, is_dos_app, is_cygnus_app);
|
|
|
2166 }
|
|
|
2167 else
|
|
|
2168 {
|
|
|
2169 /* Look for DOS .exe signature - if found, we must also check that
|
|
|
2170 it isn't really a 16- or 32-bit Windows exe, since both formats
|
|
|
2171 start with a DOS program stub. Note that 16-bit Windows
|
|
|
2172 executables use the OS/2 1.x format. */
|
|
|
2173
|
|
|
2174 #if 0 /* defined( MINGW ) */
|
|
|
2175 /* mingw32 doesn't have enough headers to detect cygwin
|
|
|
2176 apps, just do what we can. */
|
|
|
2177 FILHDR * exe_header;
|
|
|
2178
|
|
|
2179 exe_header = (FILHDR*) executable.file_base;
|
|
|
2180 if (exe_header->e_magic != DOSMAGIC)
|
|
|
2181 goto unwind;
|
|
|
2182
|
|
|
2183 if ((char*) exe_header->e_lfanew > (char*) executable.size)
|
|
|
2184 {
|
|
|
2185 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */
|
|
|
2186 *is_dos_app = TRUE;
|
|
|
2187 }
|
|
|
2188 else if (exe_header->nt_signature != NT_SIGNATURE)
|
|
|
2189 {
|
|
|
2190 *is_dos_app = TRUE;
|
|
|
2191 }
|
|
|
2192 #else
|
|
|
2193 IMAGE_DOS_HEADER * dos_header;
|
|
|
2194 IMAGE_NT_HEADERS * nt_header;
|
|
|
2195
|
|
|
2196 dos_header = (PIMAGE_DOS_HEADER) executable.file_base;
|
|
|
2197 if (dos_header->e_magic != IMAGE_DOS_SIGNATURE)
|
|
|
2198 goto unwind;
|
|
|
2199
|
|
|
2200 nt_header = (PIMAGE_NT_HEADERS) ((char*) dos_header + dos_header->e_lfanew);
|
|
|
2201
|
|
|
2202 if ((char*) nt_header > (char*) dos_header + executable.size)
|
|
|
2203 {
|
|
|
2204 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */
|
|
|
2205 *is_dos_app = TRUE;
|
|
|
2206 }
|
|
|
2207 else if (nt_header->Signature != IMAGE_NT_SIGNATURE &&
|
|
|
2208 LOWORD (nt_header->Signature) != IMAGE_OS2_SIGNATURE)
|
|
|
2209 {
|
|
|
2210 *is_dos_app = TRUE;
|
|
|
2211 }
|
|
|
2212 else if (nt_header->Signature == IMAGE_NT_SIGNATURE)
|
|
|
2213 {
|
|
|
2214 /* Look for cygwin.dll in DLL import list. */
|
|
|
2215 IMAGE_DATA_DIRECTORY import_dir =
|
|
|
2216 nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
|
|
|
2217 IMAGE_IMPORT_DESCRIPTOR * imports;
|
|
|
2218 IMAGE_SECTION_HEADER * section;
|
|
|
2219
|
|
|
2220 section = rva_to_section (import_dir.VirtualAddress, nt_header);
|
|
|
2221 imports = (IMAGE_IMPORT_DESCRIPTOR *) RVA_TO_PTR (import_dir.VirtualAddress,
|
|
|
2222 section, executable);
|
|
|
2223
|
|
|
2224 for ( ; imports->Name; imports++)
|
|
|
2225 {
|
|
|
2226 char *dllname = (char*) RVA_TO_PTR (imports->Name, section, executable);
|
|
|
2227
|
|
|
2228 /* The exact name of the cygwin dll has changed with
|
|
|
2229 various releases, but hopefully this will be reasonably
|
|
|
2230 future proof. */
|
|
|
2231 if (strncmp (dllname, "cygwin", 6) == 0)
|
|
|
2232 {
|
|
|
2233 *is_cygnus_app = TRUE;
|
|
|
2234 break;
|
|
|
2235 }
|
|
|
2236 }
|
|
|
2237 }
|
|
|
2238 #endif
|
|
|
2239 }
|
|
|
2240
|
|
|
2241 unwind:
|
|
|
2242 close_file_data (&executable);
|
|
|
2243 }
|
|
|
2244
|
|
428
|
2245 /* Close the system structures associated with the given file. */
|
|
|
2246 void
|
|
|
2247 close_file_data (file_data *p_file)
|
|
|
2248 {
|
|
|
2249 UnmapViewOfFile (p_file->file_base);
|
|
|
2250 CloseHandle (p_file->file_mapping);
|
|
|
2251 CloseHandle (p_file->file);
|
|
|
2252 }
|
|
|
2253
|
|
440
|
2254 void
|
|
|
2255 vars_of_nt (void)
|
|
|
2256 {
|
|
|
2257 DEFVAR_INT ("nt-fake-unix-uid", &nt_fake_unix_uid /*
|
|
|
2258 *Set uid returned by `user-uid' and `user-real-uid'.
|
|
|
2259 Under NT and 9x, there is no uids, and even no almighty user called root.
|
|
|
2260 By setting this variable, you can have any uid of choice. Default is 0.
|
|
|
2261 Changes to this variable take effect immediately.
|
|
|
2262 */ );
|
|
|
2263 nt_fake_unix_uid = 0;
|
|
|
2264 }
|
|
|
2265
|
|
428
|
2266 /* end of nt.c */
|
