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771
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1 /* Utility and Unix shadow routines under MS Windows (WIN32_NATIVE defined).
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428
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2 Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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771
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3 Copyright (C) 2000, 2001, 2002 Ben Wing.
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428
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to the Free
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19 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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20 02111-1307, USA.
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21
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771
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22 */
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428
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23
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771
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24 /* Authorship:
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428
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25
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771
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26 Geoff Voelker (voelker@cs.washington.edu) 7-29-94
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27 Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au>
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28 Sync'ed with Emacs 19.34.6 by Marc Paquette <marcpa@cam.org>
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29 (Note: Sync messages from Marc Paquette may indicate
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30 incomplete synching, so beware.)
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31 Synched (completely!) with Emacs 20.6 by Ben Wing, 6-23-00.
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32 Largely rewritten by Ben Wing for XEmacs Mule support.
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33 Synched (completely!) with Emacs 21.1.103 by Ben Wing, 6-13-01.
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34 */
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35
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36 /* This file Mule-ized by Ben Wing, 6-23-00. */
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428
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37
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38 #include <config.h>
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39 #include "lisp.h"
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40
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592
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41 #include "buffer.h"
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872
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42 #include "process.h"
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592
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43
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859
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44 #include "sysdir.h"
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45 #include "sysfile.h"
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428
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46 #include "sysproc.h"
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442
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47 #include "syspwd.h"
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859
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48 #include "syssignal.h"
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49 #include "systime.h"
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428
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50
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442
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51 #include "syswindows.h"
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428
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52
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771
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53 /* Control whether stat() attempts to determine file type and link count
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54 exactly, at the expense of slower operation. Since true hard links
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55 are supported on NTFS volumes, this is only relevant on NT. */
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56 Lisp_Object Vmswindows_get_true_file_attributes;
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428
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57
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771
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58 /* Vmswindows_generate_fake_inodes; deleted */
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59
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60 Fixnum mswindows_fake_unix_uid;
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428
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61
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62 /* Emulate getpwuid, getpwnam and others. */
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63
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771
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64 static struct passwd the_passwd =
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428
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65 {
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771
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66 "",
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67 "",
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428
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68 0,
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69 0,
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70 0,
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771
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71 "",
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72 "",
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73 "",
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428
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74 };
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75
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76 uid_t
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442
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77 getuid (void)
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440
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78 {
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771
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79 return mswindows_fake_unix_uid;
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428
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80 }
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81
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82 uid_t
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442
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83 geteuid (void)
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428
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84 {
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771
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85 /* Emacs 20.6 says: [[I could imagine arguing for checking to see
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86 whether the user is in the Administrators group and returning a
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87 UID of 0 for that case, but I don't know how wise that would be
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88 in the long run.]] */
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89 return mswindows_fake_unix_uid;
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428
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90 }
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91
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92 gid_t
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442
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93 getgid (void)
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428
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94 {
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95 return the_passwd.pw_gid;
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96 }
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97
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98 gid_t
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442
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99 getegid (void)
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428
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100 {
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101 return getgid ();
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102 }
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103
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104 struct passwd *
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105 getpwuid (uid_t uid)
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106 {
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771
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107 if (uid == mswindows_fake_unix_uid)
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440
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108 {
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109 the_passwd.pw_gid = the_passwd.pw_uid = uid;
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110 return &the_passwd;
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111 }
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112 else
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113 return NULL;
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428
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114 }
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115
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116 struct passwd *
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867
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117 getpwnam (const Ibyte *name)
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428
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118 {
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119 struct passwd *pw;
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120
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121 pw = getpwuid (getuid ());
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122 if (!pw)
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123 return pw;
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124
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1204
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125 if (qxestrcasecmp_i18n (name, (Ibyte *) pw->pw_name))
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428
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126 return NULL;
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127
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128 return pw;
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129 }
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130
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771
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131 static void
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442
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132 init_user_info (void)
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428
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133 {
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440
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134 /* This code is pretty much of ad hoc nature. There is no unix-like
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135 UIDs under Windows NT. There is no concept of root user, because
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136 all security is ACL-based. Instead, let's use a simple variable,
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137 nt-fake-unix-uid, which would allow the user to have a uid of
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138 choice. --kkm, 02/03/2000 */
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139 #if 0
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428
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140 /* Find the user's real name by opening the process token and
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141 looking up the name associated with the user-sid in that token.
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142
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143 Use the relative portion of the identifier authority value from
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144 the user-sid as the user id value (same for group id using the
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145 primary group sid from the process token). */
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146
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771
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147 TOKEN_USER sidinfo;
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148 Extbyte name[256], domain[256];
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149 Charcount length = sizeof (name) / XETCHAR_SIZE;
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150 Charcount dlength = sizeof (domain) / XETCHAR_SIZE;
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151 DWORD trash;
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152 HANDLE token = NULL;
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153 SID_NAME_USE user_type;
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428
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154
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155 if (OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &token)
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771
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156 && GetTokenInformation (token, TokenUser, &sidinfo, sizeof (sidinfo),
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157 &trash)
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158 && qxeLookupAccountSid (NULL, sidinfo.User.Sid, name, &length,
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159 domain, &dlength, &user_type))
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428
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160 {
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771
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161 TSTR_TO_C_STRING_MALLOC (name, the_passwd.pw_name);
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428
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162 /* Determine a reasonable uid value. */
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771
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163 if (qxestrcasecmp ("administrator", the_passwd.pw_name) == 0)
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428
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164 {
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165 the_passwd.pw_uid = 0;
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166 the_passwd.pw_gid = 0;
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167 }
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168 else
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169 {
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170 SID_IDENTIFIER_AUTHORITY * pSIA;
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771
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171 TOKEN_PRIMARY_GROUP group;
|
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428
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172
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771
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173 pSIA = GetSidIdentifierAuthority (sidinfo.User.Sid);
|
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428
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174 /* I believe the relative portion is the last 4 bytes (of 6)
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175 with msb first. */
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176 the_passwd.pw_uid = ((pSIA->Value[2] << 24) +
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177 (pSIA->Value[3] << 16) +
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178 (pSIA->Value[4] << 8) +
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179 (pSIA->Value[5] << 0));
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180 /* restrict to conventional uid range for normal users */
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181 the_passwd.pw_uid = the_passwd.pw_uid % 60001;
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182
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183 /* Get group id */
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184 if (GetTokenInformation (token, TokenPrimaryGroup,
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771
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185 &group, sizeof (group), &trash))
|
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428
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186 {
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187 SID_IDENTIFIER_AUTHORITY * pSIA;
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188
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771
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189 pSIA = GetSidIdentifierAuthority (group.PrimaryGroup);
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428
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190 the_passwd.pw_gid = ((pSIA->Value[2] << 24) +
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191 (pSIA->Value[3] << 16) +
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192 (pSIA->Value[4] << 8) +
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193 (pSIA->Value[5] << 0));
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194 /* I don't know if this is necessary, but for safety... */
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195 the_passwd.pw_gid = the_passwd.pw_gid % 60001;
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196 }
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197 else
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198 the_passwd.pw_gid = the_passwd.pw_uid;
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199 }
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200 }
|
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201 /* If security calls are not supported (presumably because we
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202 are running under Windows 95), fallback to this. */
|
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771
|
203 else if (qxeGetUserName (name, &length))
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428
|
204 {
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771
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205 TSTR_TO_C_STRING_MALLOC (name, the_passwd.pw_name);
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206 if (qxestrcasecmp ("administrator", the_passwd.pw_name) == 0)
|
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428
|
207 the_passwd.pw_uid = 0;
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208 else
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209 the_passwd.pw_uid = 123;
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|
210 the_passwd.pw_gid = the_passwd.pw_uid;
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211 }
|
|
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212 else
|
|
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213 {
|
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771
|
214 the_passwd.pw_name = "unknown";
|
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428
|
215 the_passwd.pw_uid = 123;
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|
|
216 the_passwd.pw_gid = 123;
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|
|
217 }
|
|
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218
|
|
440
|
219 if (token)
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220 CloseHandle (token);
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|
|
221 #else
|
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222 /* Obtain only logon id here, uid part is moved to getuid */
|
|
771
|
223 DWORD length = UNLEN + 1;
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|
224 Extbyte name[MAX_XETCHAR_SIZE * (UNLEN + 1)];
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|
|
225 if (qxeGetUserName (name, &length))
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226 TSTR_TO_C_STRING_MALLOC (name, the_passwd.pw_name);
|
|
440
|
227 else
|
|
771
|
228 the_passwd.pw_name = "unknown";
|
|
440
|
229 #endif
|
|
|
230
|
|
771
|
231 #if 0
|
|
428
|
232 /* Ensure HOME and SHELL are defined. */
|
|
|
233 /*
|
|
|
234 * With XEmacs, setting $HOME is deprecated.
|
|
|
235 */
|
|
771
|
236 if (egetenv ("HOME") == NULL)
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|
|
237 eputenv ("HOME=c:/");
|
|
428
|
238 #endif
|
|
|
239
|
|
611
|
240 /* Set dir from environment variables. */
|
|
771
|
241 the_passwd.pw_dir = (char *) qxestrdup (get_home_directory ());
|
|
611
|
242 /* We used to set pw_shell here, but the order is wrong (SHELL gets
|
|
853
|
243 initted in process.c, called later in the init process) and pw_shell
|
|
611
|
244 is not used anywhere. */
|
|
428
|
245 }
|
|
|
246
|
|
771
|
247 /* Parse the root part of file name, if present. Return length and
|
|
867
|
248 optionally store pointer to Ibyte after root. */
|
|
771
|
249 static Bytecount
|
|
867
|
250 parse_root (Ibyte *name, Ibyte **pPath)
|
|
428
|
251 {
|
|
867
|
252 Ibyte *start = name;
|
|
428
|
253
|
|
|
254 if (name == NULL)
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|
|
255 return 0;
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|
|
256
|
|
|
257 /* find the root name of the volume if given */
|
|
|
258 if (isalpha (name[0]) && name[1] == ':')
|
|
|
259 {
|
|
|
260 /* skip past drive specifier */
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|
|
261 name += 2;
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|
|
262 if (IS_DIRECTORY_SEP (name[0]))
|
|
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263 name++;
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|
|
264 }
|
|
|
265 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
|
|
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266 {
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|
|
267 int slashes = 2;
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|
|
268 name += 2;
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|
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269 do
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|
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270 {
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|
|
271 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
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|
|
272 break;
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|
273 name++;
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|
|
274 }
|
|
771
|
275 while (*name);
|
|
428
|
276 if (IS_DIRECTORY_SEP (name[0]))
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|
277 name++;
|
|
|
278 }
|
|
|
279
|
|
|
280 if (pPath)
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|
|
281 *pPath = name;
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|
|
282
|
|
|
283 return name - start;
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|
|
284 }
|
|
|
285
|
|
|
286 /* Get long base name for name; name is assumed to be absolute. */
|
|
867
|
287 static Ibyte *
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|
|
288 get_long_basename (Ibyte *name)
|
|
428
|
289 {
|
|
771
|
290 WIN32_FIND_DATAW find_data;
|
|
428
|
291 HANDLE dir_handle;
|
|
771
|
292 Extbyte *nameext;
|
|
428
|
293
|
|
771
|
294 /* must be valid filename, no wild cards or other invalid characters */
|
|
|
295 if (qxestrpbrk (name, "*?|<>\""))
|
|
|
296 return 0;
|
|
428
|
297
|
|
771
|
298 C_STRING_TO_TSTR (name, nameext);
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|
|
299 dir_handle = qxeFindFirstFile (nameext, &find_data);
|
|
428
|
300 if (dir_handle != INVALID_HANDLE_VALUE)
|
|
|
301 {
|
|
867
|
302 Ibyte *fileint;
|
|
771
|
303
|
|
|
304 TSTR_TO_C_STRING_MALLOC (find_data.cFileName, fileint);
|
|
428
|
305 FindClose (dir_handle);
|
|
771
|
306 return fileint;
|
|
428
|
307 }
|
|
771
|
308 return 0;
|
|
428
|
309 }
|
|
|
310
|
|
|
311 /* Get long name for file, if possible (assumed to be absolute). */
|
|
867
|
312 Ibyte *
|
|
|
313 mswindows_get_long_filename (Ibyte *name)
|
|
428
|
314 {
|
|
867
|
315 Ibyte *full = mswindows_canonicalize_filename (name);
|
|
|
316 Ibyte *p;
|
|
|
317 Ibyte *q;
|
|
771
|
318 DECLARE_EISTRING (o);
|
|
|
319 Bytecount len;
|
|
428
|
320
|
|
|
321 /* Copy root part verbatim. */
|
|
|
322 len = parse_root (full, &p);
|
|
771
|
323 eicpy_raw (o, full, len);
|
|
428
|
324
|
|
771
|
325 while (p != NULL && *p)
|
|
428
|
326 {
|
|
867
|
327 Ibyte *component;
|
|
771
|
328
|
|
428
|
329 q = p;
|
|
771
|
330 p = qxestrchr (q, '\\');
|
|
428
|
331 if (p) *p = '\0';
|
|
771
|
332 component = get_long_basename (full);
|
|
|
333 if (component)
|
|
428
|
334 {
|
|
771
|
335 eicat_rawz (o, component);
|
|
428
|
336 if (p != NULL)
|
|
|
337 {
|
|
|
338 *p++ = '\\';
|
|
771
|
339 eicat_ch (o, '\\');
|
|
428
|
340 }
|
|
1726
|
341 xfree (component, Ibyte *);
|
|
428
|
342 }
|
|
|
343 else
|
|
771
|
344 {
|
|
1726
|
345 xfree (full, Ibyte *);
|
|
771
|
346 return 0;
|
|
|
347 }
|
|
428
|
348 }
|
|
|
349
|
|
1726
|
350 xfree (full, Ibyte *);
|
|
771
|
351 return eicpyout_malloc (o, 0);
|
|
428
|
352 }
|
|
|
353
|
|
771
|
354 static int
|
|
867
|
355 is_unc_volume (const Ibyte *filename)
|
|
771
|
356 {
|
|
867
|
357 const Ibyte *ptr = filename;
|
|
428
|
358
|
|
771
|
359 if (!IS_DIRECTORY_SEP (ptr[0]) || !IS_DIRECTORY_SEP (ptr[1]) || !ptr[2])
|
|
|
360 return 0;
|
|
|
361
|
|
|
362 if (qxestrpbrk (ptr + 2, "*?|<>\"\\/"))
|
|
|
363 return 0;
|
|
|
364
|
|
|
365 return 1;
|
|
428
|
366 }
|
|
|
367
|
|
771
|
368 /* NOTE: Value returned is still in external format. Callers need to
|
|
|
369 convert. */
|
|
707
|
370 #define REG_ROOT "SOFTWARE\\XEmacs\\XEmacs"
|
|
428
|
371
|
|
771
|
372 static LPBYTE
|
|
867
|
373 nt_get_resource (Ibyte *key, LPDWORD lpdwtype)
|
|
428
|
374 {
|
|
|
375 LPBYTE lpvalue;
|
|
|
376 HKEY hrootkey = NULL;
|
|
|
377 DWORD cbData;
|
|
771
|
378 Extbyte *keyext;
|
|
|
379
|
|
|
380 C_STRING_TO_TSTR (key, keyext);
|
|
428
|
381
|
|
|
382 /* Check both the current user and the local machine to see if
|
|
|
383 we have any resources. */
|
|
|
384
|
|
771
|
385 if (qxeRegOpenKeyEx (HKEY_CURRENT_USER, XETEXT (REG_ROOT), 0, KEY_READ,
|
|
|
386 &hrootkey) == ERROR_SUCCESS)
|
|
428
|
387 {
|
|
|
388 lpvalue = NULL;
|
|
|
389
|
|
771
|
390 if (qxeRegQueryValueEx (hrootkey, keyext, NULL, NULL, NULL,
|
|
|
391 &cbData) == ERROR_SUCCESS
|
|
428
|
392 && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL
|
|
771
|
393 && qxeRegQueryValueEx (hrootkey, keyext, NULL, lpdwtype, lpvalue,
|
|
|
394 &cbData) == ERROR_SUCCESS)
|
|
|
395 return (lpvalue);
|
|
428
|
396
|
|
1726
|
397 if (lpvalue)
|
|
|
398 xfree (lpvalue, LPBYTE);
|
|
428
|
399
|
|
|
400 RegCloseKey (hrootkey);
|
|
|
401 }
|
|
|
402
|
|
771
|
403 if (qxeRegOpenKeyEx (HKEY_LOCAL_MACHINE, XETEXT (REG_ROOT), 0, KEY_READ,
|
|
|
404 &hrootkey) == ERROR_SUCCESS)
|
|
428
|
405 {
|
|
|
406 lpvalue = NULL;
|
|
|
407
|
|
771
|
408 if (qxeRegQueryValueEx (hrootkey, keyext, NULL, NULL, NULL,
|
|
|
409 &cbData) == ERROR_SUCCESS &&
|
|
428
|
410 (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL &&
|
|
771
|
411 qxeRegQueryValueEx (hrootkey, keyext, NULL, lpdwtype, lpvalue,
|
|
|
412 &cbData) == ERROR_SUCCESS)
|
|
|
413 return (lpvalue);
|
|
428
|
414
|
|
1726
|
415 if (lpvalue)
|
|
|
416 xfree (lpvalue, LPBYTE);
|
|
428
|
417
|
|
|
418 RegCloseKey (hrootkey);
|
|
|
419 }
|
|
|
420
|
|
|
421 return (NULL);
|
|
|
422 }
|
|
|
423
|
|
|
424 void
|
|
814
|
425 init_mswindows_environment (void)
|
|
428
|
426 {
|
|
|
427 /* Check for environment variables and use registry if they don't exist */
|
|
771
|
428 /* Emacs 20.6 sets default values for these; not necessary here because
|
|
|
429 we already supply them. (except SHELL, which is set in init_user_info().)
|
|
|
430 Emacs 20.6 messes with TMPDIR; not necessary here. */
|
|
428
|
431 {
|
|
|
432 int i;
|
|
|
433 LPBYTE lpval;
|
|
|
434 DWORD dwType;
|
|
|
435
|
|
771
|
436 static Char_ASCII *env_vars[] =
|
|
428
|
437 {
|
|
|
438 "HOME",
|
|
|
439 "EMACSLOADPATH",
|
|
|
440 "EMACSDEBUGPATHS",
|
|
|
441 "SHELL",
|
|
|
442 "CMDPROXY",
|
|
|
443 "EMACSDATA",
|
|
|
444 "EMACSPATH",
|
|
|
445 "EMACSPACKAGEPATH",
|
|
771
|
446 "EMACSLOCKMETHOD",
|
|
428
|
447 "INFOPATH"
|
|
|
448 };
|
|
771
|
449 #if defined (HEAP_IN_DATA) && !defined (PDUMP)
|
|
430
|
450 cache_system_info ();
|
|
|
451 #endif
|
|
771
|
452
|
|
|
453 #if 0 /* FSF 21.1 */
|
|
|
454 /* !!#### i think i already do the equivalent elsewhere.
|
|
|
455 delete when i'm sure i do.
|
|
|
456 (but maybe i should be playing with LANG when the user changes
|
|
|
457 the locale, so that subprocesses get it right.) */
|
|
|
458 /* Get default locale info and use it for LANG. */
|
|
|
459 if (GetLocaleInfo (LOCALE_USER_DEFAULT,
|
|
|
460 LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
|
|
|
461 locale_name, sizeof (locale_name)))
|
|
|
462 {
|
|
|
463 for (i = 0; i < (sizeof (env_vars) / sizeof (env_vars[0])); i++)
|
|
|
464 {
|
|
|
465 if (strcmp (env_vars[i].name, "LANG") == 0)
|
|
|
466 {
|
|
|
467 env_vars[i].def_value = locale_name;
|
|
|
468 break;
|
|
|
469 }
|
|
|
470 }
|
|
|
471 }
|
|
|
472 #endif /* 0 */
|
|
|
473
|
|
428
|
474 for (i = 0; i < countof (env_vars); i++)
|
|
|
475 {
|
|
771
|
476 if (!egetenv (env_vars[i]) &&
|
|
1204
|
477 (lpval = nt_get_resource ((Ibyte *) env_vars[i], &dwType)) != NULL)
|
|
428
|
478 {
|
|
|
479 if (dwType == REG_EXPAND_SZ)
|
|
|
480 {
|
|
771
|
481 Extbyte *buf = NULL;
|
|
867
|
482 Ibyte *envval;
|
|
771
|
483 Charcount cch;
|
|
428
|
484
|
|
771
|
485 cch = qxeExpandEnvironmentStrings ((Extbyte *) lpval, buf, 0);
|
|
851
|
486 buf = (Extbyte *) ALLOCA (cch * XETCHAR_SIZE);
|
|
771
|
487 qxeExpandEnvironmentStrings ((Extbyte *) lpval, buf, cch);
|
|
|
488 TSTR_TO_C_STRING (buf, envval);
|
|
1204
|
489 eputenv (env_vars[i], (CIbyte *) envval);
|
|
428
|
490 }
|
|
|
491 else if (dwType == REG_SZ)
|
|
|
492 {
|
|
867
|
493 Ibyte *envval;
|
|
771
|
494
|
|
|
495 TSTR_TO_C_STRING (lpval, envval);
|
|
1204
|
496 eputenv (env_vars[i], (CIbyte *) envval);
|
|
428
|
497 }
|
|
|
498
|
|
1726
|
499 xfree (lpval, LPBYTE);
|
|
428
|
500 }
|
|
|
501 }
|
|
|
502 }
|
|
|
503
|
|
|
504 /* Another special case: on NT, the PATH variable is actually named
|
|
|
505 "Path" although cmd.exe (perhaps NT itself) arranges for
|
|
|
506 environment variable lookup and setting to be case insensitive.
|
|
|
507 However, Emacs assumes a fully case sensitive environment, so we
|
|
|
508 need to change "Path" to "PATH" to match the expectations of
|
|
771
|
509 various elisp packages.
|
|
428
|
510
|
|
|
511 The same applies to COMSPEC. */
|
|
|
512 {
|
|
771
|
513 Lisp_Object tail;
|
|
428
|
514
|
|
771
|
515 EXTERNAL_LIST_LOOP (tail, Vprocess_environment)
|
|
|
516 {
|
|
|
517 Lisp_Object str = XCAR (tail);
|
|
|
518 if (STRINGP (str))
|
|
|
519 {
|
|
867
|
520 Ibyte *dat = XSTRING_DATA (str);
|
|
1204
|
521 if (qxestrncasecmp_c (dat, "PATH=", 5) == 0)
|
|
771
|
522 memcpy (dat, "PATH=", 5);
|
|
1204
|
523 else if (qxestrncasecmp_c (dat, "COMSPEC=", 8) == 0)
|
|
771
|
524 memcpy (dat, "COMSPEC=", 8);
|
|
|
525 }
|
|
|
526 }
|
|
428
|
527 }
|
|
|
528
|
|
|
529 init_user_info ();
|
|
|
530 }
|
|
|
531
|
|
771
|
532 /* Emacs 20.6 contains a routine get_emacs_configuration() here to set
|
|
|
533 EMACS_CONFIGURATION. */
|
|
428
|
534 #ifndef HAVE_X_WINDOWS
|
|
|
535 /* X11R6 on NT provides the single parameter version of this command. */
|
|
|
536
|
|
|
537 #include <sys/timeb.h>
|
|
|
538
|
|
|
539 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */
|
|
|
540 void
|
|
|
541 gettimeofday (struct timeval *tv, struct timezone *tz)
|
|
|
542 {
|
|
|
543 struct _timeb tb;
|
|
|
544 _ftime (&tb);
|
|
|
545
|
|
|
546 tv->tv_sec = tb.time;
|
|
|
547 tv->tv_usec = tb.millitm * 1000L;
|
|
|
548 if (tz)
|
|
|
549 {
|
|
|
550 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
|
|
|
551 tz->tz_dsttime = tb.dstflag; /* type of dst correction */
|
|
|
552 }
|
|
|
553 }
|
|
|
554
|
|
|
555 #endif /* HAVE_X_WINDOWS */
|
|
|
556
|
|
771
|
557
|
|
428
|
558 /* ------------------------------------------------------------------------- */
|
|
771
|
559 /* IO support and wrapper functions for Win32 API. */
|
|
428
|
560 /* ------------------------------------------------------------------------- */
|
|
|
561
|
|
771
|
562 typedef struct volume_info_data
|
|
428
|
563 {
|
|
771
|
564 struct volume_info_data *next;
|
|
428
|
565
|
|
|
566 /* time when info was obtained */
|
|
771
|
567 DWORD timestamp;
|
|
428
|
568
|
|
|
569 /* actual volume info */
|
|
867
|
570 Ibyte *root_dir;
|
|
771
|
571 DWORD serialnum;
|
|
|
572 DWORD maxcomp;
|
|
|
573 DWORD flags;
|
|
867
|
574 Ibyte *name;
|
|
|
575 Ibyte *type;
|
|
428
|
576 } volume_info_data;
|
|
|
577
|
|
|
578 /* Global referenced by various functions. */
|
|
|
579 static volume_info_data volume_info;
|
|
|
580
|
|
|
581 /* Vector to indicate which drives are local and fixed (for which cached
|
|
|
582 data never expires). */
|
|
|
583 static BOOL fixed_drives[26];
|
|
|
584
|
|
|
585 /* Consider cached volume information to be stale if older than 10s,
|
|
|
586 at least for non-local drives. Info for fixed drives is never stale. */
|
|
|
587 #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' )
|
|
|
588 #define VOLINFO_STILL_VALID( root_dir, info ) \
|
|
|
589 ( ( isalpha (root_dir[0]) && \
|
|
|
590 fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \
|
|
|
591 || GetTickCount () - info->timestamp < 10000 )
|
|
|
592
|
|
|
593 /* Cache support functions. */
|
|
|
594
|
|
|
595 /* Simple linked list with linear search is sufficient. */
|
|
|
596 static volume_info_data *volume_cache = NULL;
|
|
|
597
|
|
|
598 static volume_info_data *
|
|
867
|
599 lookup_volume_info (Ibyte *root_dir)
|
|
428
|
600 {
|
|
771
|
601 volume_info_data *info;
|
|
428
|
602
|
|
|
603 for (info = volume_cache; info; info = info->next)
|
|
771
|
604 if (qxestrcasecmp_i18n (info->root_dir, root_dir) == 0)
|
|
428
|
605 break;
|
|
|
606 return info;
|
|
|
607 }
|
|
|
608
|
|
|
609 static void
|
|
867
|
610 add_volume_info (Ibyte *root_dir, volume_info_data *info)
|
|
428
|
611 {
|
|
771
|
612 info->root_dir = qxestrdup (root_dir);
|
|
428
|
613 info->next = volume_cache;
|
|
|
614 volume_cache = info;
|
|
|
615 }
|
|
|
616
|
|
|
617
|
|
|
618 /* Wrapper for GetVolumeInformation, which uses caching to avoid
|
|
|
619 performance penalty (~2ms on 486 for local drives, 7.5ms for local
|
|
|
620 cdrom drive, ~5-10ms or more for remote drives on LAN). */
|
|
771
|
621 static volume_info_data *
|
|
867
|
622 get_cached_volume_information (Ibyte *root_dir)
|
|
428
|
623 {
|
|
771
|
624 volume_info_data *info;
|
|
867
|
625 Ibyte *default_root;
|
|
428
|
626
|
|
|
627 /* NULL for root_dir means use root from current directory. */
|
|
|
628 if (root_dir == NULL)
|
|
|
629 {
|
|
771
|
630 Charcount nchars = qxeGetCurrentDirectory (0, NULL);
|
|
|
631 Extbyte *rootext;
|
|
|
632
|
|
|
633 if (!nchars)
|
|
428
|
634 return NULL;
|
|
771
|
635 rootext = alloca_extbytes (nchars * XETCHAR_SIZE);
|
|
|
636 if (!qxeGetCurrentDirectory (nchars, rootext))
|
|
|
637 return NULL;
|
|
|
638 TSTR_TO_C_STRING (rootext, default_root);
|
|
428
|
639 parse_root (default_root, &root_dir);
|
|
|
640 *root_dir = 0;
|
|
|
641 root_dir = default_root;
|
|
|
642 }
|
|
|
643
|
|
|
644 /* Local fixed drives can be cached permanently. Removable drives
|
|
|
645 cannot be cached permanently, since the volume name and serial
|
|
|
646 number (if nothing else) can change. Remote drives should be
|
|
|
647 treated as if they are removable, since there is no sure way to
|
|
|
648 tell whether they are or not. Also, the UNC association of drive
|
|
|
649 letters mapped to remote volumes can be changed at any time (even
|
|
|
650 by other processes) without notice.
|
|
|
651
|
|
|
652 As a compromise, so we can benefit from caching info for remote
|
|
|
653 volumes, we use a simple expiry mechanism to invalidate cache
|
|
|
654 entries that are more than ten seconds old. */
|
|
|
655
|
|
|
656 #if 0
|
|
|
657 /* No point doing this, because WNetGetConnection is even slower than
|
|
|
658 GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW,
|
|
|
659 GetDriveType is about the only call of this type which does not
|
|
|
660 involve network access, and so is extremely quick). */
|
|
|
661
|
|
|
662 /* Map drive letter to UNC if remote. */
|
|
771
|
663 if (isalpha (root_dir[0]) && !fixed [DRIVE_INDEX (root_dir[0])])
|
|
428
|
664 {
|
|
771
|
665 Extbyte remote_name[256 * XETCHAR_SIZE];
|
|
867
|
666 Ibyte drive[3] = { root_dir[0], ':' };
|
|
771
|
667 Extbyte *driveext;
|
|
428
|
668
|
|
771
|
669 C_STRING_TO_TSTR (drive, driveext);
|
|
|
670 if (qxeWNetGetConnection (driveext, remote_name,
|
|
|
671 sizeof (remote_name) / XETCHAR_SIZE)
|
|
428
|
672 == NO_ERROR)
|
|
|
673 /* do something */ ;
|
|
|
674 }
|
|
|
675 #endif
|
|
|
676
|
|
|
677 info = lookup_volume_info (root_dir);
|
|
|
678
|
|
|
679 if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
|
|
771
|
680 {
|
|
|
681 Extbyte name[256 * MAX_XETCHAR_SIZE];
|
|
|
682 DWORD serialnum;
|
|
|
683 DWORD maxcomp;
|
|
|
684 DWORD flags;
|
|
|
685 Extbyte type[256 * MAX_XETCHAR_SIZE];
|
|
1204
|
686 Extbyte *rootdirext;
|
|
|
687
|
|
|
688 C_STRING_TO_TSTR (root_dir, rootdirext);
|
|
428
|
689
|
|
771
|
690 /* Info is not cached, or is stale. */
|
|
1204
|
691 if (!qxeGetVolumeInformation (rootdirext,
|
|
771
|
692 name, sizeof (name) / XETCHAR_SIZE,
|
|
|
693 &serialnum,
|
|
|
694 &maxcomp,
|
|
|
695 &flags,
|
|
|
696 type, sizeof (type) / XETCHAR_SIZE))
|
|
|
697 return NULL;
|
|
428
|
698
|
|
771
|
699 /* Cache the volume information for future use, overwriting existing
|
|
|
700 entry if present. */
|
|
|
701 if (info == NULL)
|
|
|
702 {
|
|
|
703 info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
|
|
|
704 add_volume_info (root_dir, info);
|
|
|
705 }
|
|
|
706 else
|
|
|
707 {
|
|
1726
|
708 xfree (info->name, Ibyte *);
|
|
|
709 xfree (info->type, Ibyte *);
|
|
771
|
710 }
|
|
428
|
711
|
|
771
|
712 TSTR_TO_C_STRING_MALLOC (name, info->name);
|
|
|
713 info->serialnum = serialnum;
|
|
|
714 info->maxcomp = maxcomp;
|
|
|
715 info->flags = flags;
|
|
|
716 TSTR_TO_C_STRING_MALLOC (type, info->type);
|
|
|
717 info->timestamp = GetTickCount ();
|
|
|
718 }
|
|
428
|
719
|
|
|
720 return info;
|
|
|
721 }
|
|
|
722
|
|
|
723 /* Get information on the volume where name is held; set path pointer to
|
|
|
724 start of pathname in name (past UNC header\volume header if present). */
|
|
771
|
725 static int
|
|
867
|
726 get_volume_info (const Ibyte *name, const Ibyte **pPath)
|
|
428
|
727 {
|
|
771
|
728 /* We probably only need a couple of bytes, but let's be generous in
|
|
|
729 case this function gets changed */
|
|
867
|
730 Ibyte *temp = alloca_array (Ibyte, qxestrlen (name) + 10);
|
|
|
731 Ibyte *rootname = NULL; /* default to current volume */
|
|
771
|
732 volume_info_data *info;
|
|
428
|
733
|
|
|
734 if (name == NULL)
|
|
|
735 return FALSE;
|
|
|
736
|
|
|
737 /* find the root name of the volume if given */
|
|
|
738 if (isalpha (name[0]) && name[1] == ':')
|
|
|
739 {
|
|
|
740 rootname = temp;
|
|
|
741 temp[0] = *name++;
|
|
|
742 temp[1] = *name++;
|
|
|
743 temp[2] = '\\';
|
|
|
744 temp[3] = 0;
|
|
|
745 }
|
|
|
746 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
|
|
|
747 {
|
|
867
|
748 Ibyte *str = temp;
|
|
428
|
749 int slashes = 4;
|
|
|
750 rootname = temp;
|
|
|
751 do
|
|
|
752 {
|
|
|
753 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
|
|
|
754 break;
|
|
|
755 *str++ = *name++;
|
|
|
756 }
|
|
771
|
757 while (*name);
|
|
428
|
758
|
|
|
759 *str++ = '\\';
|
|
|
760 *str = 0;
|
|
|
761 }
|
|
|
762
|
|
|
763 if (pPath)
|
|
|
764 *pPath = name;
|
|
|
765
|
|
771
|
766 info = get_cached_volume_information (rootname);
|
|
428
|
767 if (info != NULL)
|
|
|
768 {
|
|
|
769 /* Set global referenced by other functions. */
|
|
|
770 volume_info = *info;
|
|
|
771 return TRUE;
|
|
|
772 }
|
|
|
773 return FALSE;
|
|
|
774 }
|
|
|
775
|
|
771
|
776 /* XEmacs: Everything referring to map_win32_filename() aka map_w32_filename()
|
|
|
777 removed; it was only for NT 3.1, which we hereby do not support. (NT 3.5
|
|
|
778 predates Windows 95!) */
|
|
428
|
779
|
|
1204
|
780 int
|
|
|
781 mswindows_is_executable (const Ibyte *name)
|
|
771
|
782 {
|
|
867
|
783 Ibyte *p = qxestrrchr (name, '.');
|
|
1204
|
784 return (p != NULL && (qxestrcasecmp_c (p, ".exe") == 0 ||
|
|
|
785 qxestrcasecmp_c (p, ".com") == 0 ||
|
|
|
786 qxestrcasecmp_c (p, ".bat") == 0 ||
|
|
|
787 qxestrcasecmp_c (p, ".cmd") == 0));
|
|
428
|
788 }
|
|
|
789
|
|
|
790 /* Emulate the Unix directory procedures opendir, closedir,
|
|
|
791 and readdir. We can't use the procedures supplied in sysdep.c,
|
|
|
792 so we provide them here. */
|
|
|
793
|
|
|
794 struct direct dir_static; /* simulated directory contents */
|
|
|
795 static HANDLE dir_find_handle = INVALID_HANDLE_VALUE;
|
|
771
|
796 /* dir_is_fat deleted */
|
|
867
|
797 static Ibyte *dir_pathname;
|
|
771
|
798 static WIN32_FIND_DATAW dir_find_data;
|
|
|
799
|
|
|
800 /* Support shares on a network resource as subdirectories of a read-only
|
|
|
801 root directory. */
|
|
|
802 static HANDLE wnet_enum_handle = INVALID_HANDLE_VALUE;
|
|
867
|
803 static HANDLE open_unc_volume (const Ibyte *);
|
|
|
804 static Ibyte *read_unc_volume (HANDLE);
|
|
771
|
805 static int close_unc_volume (HANDLE);
|
|
428
|
806
|
|
|
807 DIR *
|
|
867
|
808 mswindows_opendir (const Ibyte *filename)
|
|
428
|
809 {
|
|
|
810 DIR *dirp;
|
|
|
811
|
|
|
812 /* Opening is done by FindFirstFile. However, a read is inherent to
|
|
|
813 this operation, so we defer the open until read time. */
|
|
|
814
|
|
771
|
815 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
428
|
816 return NULL;
|
|
771
|
817 if (wnet_enum_handle != INVALID_HANDLE_VALUE)
|
|
428
|
818 return NULL;
|
|
|
819
|
|
771
|
820 if (is_unc_volume (filename))
|
|
|
821 {
|
|
|
822 wnet_enum_handle = open_unc_volume (filename);
|
|
|
823 if (wnet_enum_handle == INVALID_HANDLE_VALUE)
|
|
|
824 return NULL;
|
|
|
825 }
|
|
428
|
826
|
|
771
|
827 if (!(dirp = xnew_and_zero (DIR)))
|
|
|
828 return NULL;
|
|
|
829
|
|
|
830 if (dir_pathname)
|
|
1726
|
831 xfree (dir_pathname, Ibyte *);
|
|
771
|
832 dir_pathname = qxestrdup (filename);
|
|
428
|
833
|
|
|
834 return dirp;
|
|
|
835 }
|
|
|
836
|
|
442
|
837 int
|
|
771
|
838 mswindows_closedir (DIR *dirp)
|
|
428
|
839 {
|
|
771
|
840 int retval;
|
|
442
|
841
|
|
428
|
842 /* If we have a find-handle open, close it. */
|
|
|
843 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
844 {
|
|
771
|
845 retval = FindClose (dir_find_handle) ? 0 : -1;
|
|
428
|
846 dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
847 }
|
|
771
|
848 else if (wnet_enum_handle != INVALID_HANDLE_VALUE)
|
|
|
849 {
|
|
|
850 retval = close_unc_volume (wnet_enum_handle);
|
|
|
851 wnet_enum_handle = INVALID_HANDLE_VALUE;
|
|
|
852 }
|
|
1726
|
853 xfree (dirp, DIR *);
|
|
771
|
854
|
|
|
855 return retval;
|
|
|
856 }
|
|
|
857
|
|
|
858 struct direct *
|
|
2286
|
859 mswindows_readdir (DIR *UNUSED (dirp))
|
|
771
|
860 {
|
|
867
|
861 Ibyte *val;
|
|
771
|
862 int need_to_free = 0;
|
|
|
863
|
|
|
864 if (wnet_enum_handle != INVALID_HANDLE_VALUE)
|
|
|
865 {
|
|
|
866 if (!(val = read_unc_volume (wnet_enum_handle)))
|
|
|
867 return NULL;
|
|
|
868 need_to_free = 1;
|
|
|
869 }
|
|
|
870 /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */
|
|
|
871 else if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
872 {
|
|
|
873 DECLARE_EISTRING (filename);
|
|
867
|
874 Ichar lastch;
|
|
771
|
875
|
|
|
876 eicpy_rawz (filename, dir_pathname);
|
|
|
877 lastch = eigetch_char (filename, eicharlen (filename) - 1);
|
|
|
878 if (!IS_DIRECTORY_SEP (lastch))
|
|
|
879 eicat_ch (filename, '\\');
|
|
|
880 eicat_ch (filename, '*');
|
|
|
881 eito_external (filename, Qmswindows_tstr);
|
|
|
882
|
|
|
883 dir_find_handle = qxeFindFirstFile (eiextdata (filename),
|
|
|
884 &dir_find_data);
|
|
|
885
|
|
|
886 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
887 return NULL;
|
|
|
888 TSTR_TO_C_STRING (dir_find_data.cFileName, val);
|
|
|
889 }
|
|
|
890 else
|
|
|
891 {
|
|
|
892 if (!qxeFindNextFile (dir_find_handle, &dir_find_data))
|
|
|
893 return NULL;
|
|
|
894 TSTR_TO_C_STRING (dir_find_data.cFileName, val);
|
|
|
895 }
|
|
|
896
|
|
|
897 /* XEmacs never uses this value, so don't bother making it match
|
|
|
898 value returned by qxe_stat(). */
|
|
|
899 dir_static.d_ino = 1;
|
|
|
900
|
|
|
901 dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 +
|
|
|
902 dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
903
|
|
|
904 {
|
|
|
905 DECLARE_EISTRING (found);
|
|
|
906 Bytecount namlen;
|
|
|
907
|
|
|
908 eicpy_rawz (found, val);
|
|
|
909 if (need_to_free)
|
|
1726
|
910 xfree (val, Ibyte *);
|
|
771
|
911
|
|
|
912 if (!NILP (Vmswindows_downcase_file_names))
|
|
|
913 eilwr (found);
|
|
|
914
|
|
|
915 namlen = min (eilen (found), sizeof (dir_static.d_name) - 1);
|
|
|
916 strncpy (dir_static.d_name, (char *) eidata (found), namlen);
|
|
|
917 dir_static.d_name[namlen] = '\0';
|
|
|
918 dir_static.d_namlen = (unsigned short) namlen;
|
|
|
919 }
|
|
|
920
|
|
|
921 return &dir_static;
|
|
|
922 }
|
|
|
923
|
|
|
924 static HANDLE
|
|
867
|
925 open_unc_volume (const Ibyte *path)
|
|
771
|
926 {
|
|
|
927 NETRESOURCEW nr;
|
|
|
928 HANDLE henum;
|
|
|
929 int result;
|
|
|
930
|
|
|
931 nr.dwScope = RESOURCE_GLOBALNET;
|
|
|
932 nr.dwType = RESOURCETYPE_DISK;
|
|
|
933 nr.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER;
|
|
|
934 nr.dwUsage = RESOURCEUSAGE_CONTAINER;
|
|
|
935 nr.lpLocalName = NULL;
|
|
|
936 C_STRING_TO_TSTR (path, nr.lpRemoteName);
|
|
|
937 nr.lpComment = NULL;
|
|
|
938 nr.lpProvider = NULL;
|
|
|
939
|
|
|
940 result = qxeWNetOpenEnum (RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
|
|
|
941 RESOURCEUSAGE_CONNECTABLE, &nr, &henum);
|
|
|
942
|
|
|
943 if (result == NO_ERROR)
|
|
|
944 return henum;
|
|
|
945 else
|
|
|
946 return INVALID_HANDLE_VALUE;
|
|
|
947 }
|
|
|
948
|
|
867
|
949 static Ibyte *
|
|
2286
|
950 read_unc_volume (HANDLE UNUSED (henum))
|
|
771
|
951 {
|
|
1204
|
952 DWORD count;
|
|
771
|
953 int result;
|
|
|
954 Extbyte buf[16384];
|
|
867
|
955 Ibyte *ptr;
|
|
1204
|
956 DWORD bufsize = sizeof (buf);
|
|
771
|
957
|
|
|
958 count = 1;
|
|
|
959 /* #### we should just be querying the size and then allocating the
|
|
|
960 right amount, like for all similar API's. but the docs say this ?!
|
|
|
961
|
|
|
962 An application cannot set the lpBuffer parameter to NULL and
|
|
|
963 retrieve the required buffer size from the lpBufferSize
|
|
|
964 parameter. Instead, the application should allocate a buffer of a
|
|
|
965 reasonable size -- 16 kilobytes (K) is typical -- and use the value
|
|
|
966 of lpBufferSize for error detection.
|
|
|
967 */
|
|
|
968
|
|
|
969 result = qxeWNetEnumResource (wnet_enum_handle, &count, buf, &bufsize);
|
|
|
970 if (result != NO_ERROR)
|
|
|
971 return NULL;
|
|
|
972
|
|
|
973 /* WNetEnumResource returns \\resource\share...skip forward to "share". */
|
|
|
974 TSTR_TO_C_STRING (((LPNETRESOURCEW) buf)->lpRemoteName, ptr);
|
|
867
|
975 INC_IBYTEPTR (ptr);
|
|
|
976 INC_IBYTEPTR (ptr);
|
|
|
977 while (*ptr && !IS_DIRECTORY_SEP (itext_ichar (ptr)))
|
|
|
978 INC_IBYTEPTR (ptr);
|
|
|
979 INC_IBYTEPTR (ptr);
|
|
771
|
980
|
|
|
981 return qxestrdup (ptr);
|
|
|
982 }
|
|
|
983
|
|
|
984 static int
|
|
|
985 close_unc_volume (HANDLE henum)
|
|
|
986 {
|
|
|
987 if (henum != INVALID_HANDLE_VALUE)
|
|
|
988 return WNetCloseEnum (henum) == NO_ERROR ? 0 : -1;
|
|
442
|
989 else
|
|
|
990 return -1;
|
|
428
|
991 }
|
|
|
992
|
|
771
|
993 static DWORD
|
|
867
|
994 unc_volume_file_attributes (const Ibyte *path)
|
|
428
|
995 {
|
|
771
|
996 HANDLE henum;
|
|
|
997 DWORD attrs;
|
|
|
998
|
|
|
999 henum = open_unc_volume (path);
|
|
|
1000 if (henum == INVALID_HANDLE_VALUE)
|
|
|
1001 return -1;
|
|
|
1002
|
|
|
1003 attrs = FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY;
|
|
|
1004
|
|
|
1005 close_unc_volume (henum);
|
|
428
|
1006
|
|
771
|
1007 return attrs;
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 int
|
|
867
|
1011 mswindows_access (const Ibyte *path, int mode)
|
|
771
|
1012 {
|
|
|
1013 DWORD attributes;
|
|
428
|
1014
|
|
771
|
1015 /* MSVC implementation doesn't recognize D_OK. */
|
|
|
1016 if (is_unc_volume (path))
|
|
|
1017 {
|
|
|
1018 attributes = unc_volume_file_attributes (path);
|
|
|
1019 if (attributes == -1)
|
|
|
1020 {
|
|
|
1021 errno = EACCES;
|
|
|
1022 return -1;
|
|
|
1023 }
|
|
428
|
1024 }
|
|
|
1025 else
|
|
|
1026 {
|
|
771
|
1027 Extbyte *pathext;
|
|
|
1028
|
|
|
1029 C_STRING_TO_TSTR (path, pathext);
|
|
|
1030 if ((attributes = qxeGetFileAttributes (pathext)) == -1)
|
|
|
1031 {
|
|
|
1032 /* Should try mapping GetLastError to errno; for now just indicate
|
|
|
1033 that path doesn't exist. */
|
|
|
1034 errno = EACCES;
|
|
|
1035 return -1;
|
|
|
1036 }
|
|
428
|
1037 }
|
|
1204
|
1038 if ((mode & X_OK) != 0 && !mswindows_is_executable (path))
|
|
771
|
1039 {
|
|
|
1040 errno = EACCES;
|
|
|
1041 return -1;
|
|
|
1042 }
|
|
|
1043 if ((mode & W_OK) != 0 && (attributes & FILE_ATTRIBUTE_READONLY) != 0)
|
|
428
|
1044 {
|
|
771
|
1045 errno = EACCES;
|
|
|
1046 return -1;
|
|
428
|
1047 }
|
|
771
|
1048 if ((mode & D_OK) != 0 && (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
|
|
|
1049 {
|
|
|
1050 errno = EACCES;
|
|
|
1051 return -1;
|
|
|
1052 }
|
|
|
1053 return 0;
|
|
428
|
1054 }
|
|
|
1055
|
|
771
|
1056 /* This only works on NTFS volumes, but is useful to have. */
|
|
|
1057 /* #### NT 5.0 has a function CreateHardLink to do this directly,
|
|
|
1058 and it may do more things. */
|
|
428
|
1059 int
|
|
867
|
1060 mswindows_link (const Ibyte *old, const Ibyte *new)
|
|
428
|
1061 {
|
|
771
|
1062 HANDLE fileh;
|
|
|
1063 int result = -1;
|
|
1204
|
1064 Extbyte *oldext;
|
|
771
|
1065
|
|
|
1066 if (old == NULL || new == NULL)
|
|
|
1067 {
|
|
|
1068 errno = ENOENT;
|
|
|
1069 return -1;
|
|
|
1070 }
|
|
|
1071
|
|
1204
|
1072 C_STRING_TO_TSTR (old, oldext);
|
|
|
1073 fileh = qxeCreateFile (oldext, 0, 0, NULL, OPEN_EXISTING,
|
|
771
|
1074 FILE_FLAG_BACKUP_SEMANTICS, NULL);
|
|
|
1075 if (fileh != INVALID_HANDLE_VALUE)
|
|
|
1076 {
|
|
|
1077 int wlen;
|
|
|
1078 WCHAR *newuni;
|
|
|
1079
|
|
|
1080 /* Confusingly, the "alternate" stream name field does not apply
|
|
|
1081 when restoring a hard link, and instead contains the actual
|
|
|
1082 stream data for the link (ie. the name of the link to create).
|
|
|
1083 The WIN32_STREAM_ID structure before the cStreamName field is
|
|
|
1084 the stream header, which is then immediately followed by the
|
|
|
1085 stream data. */
|
|
|
1086
|
|
|
1087 struct
|
|
|
1088 {
|
|
|
1089 WIN32_STREAM_ID wid;
|
|
|
1090 WCHAR wbuffer[MAX_PATH]; /* extra space for link name */
|
|
|
1091 } data;
|
|
|
1092
|
|
|
1093 TO_EXTERNAL_FORMAT (C_STRING, new,
|
|
|
1094 ALLOCA, (newuni, wlen), Qmswindows_unicode);
|
|
|
1095 if (wlen / sizeof (WCHAR) < MAX_PATH)
|
|
|
1096 {
|
|
|
1097 LPVOID context = NULL;
|
|
|
1098 DWORD wbytes = 0;
|
|
428
|
1099
|
|
771
|
1100 wcscpy (data.wid.cStreamName, newuni);
|
|
|
1101 data.wid.dwStreamId = BACKUP_LINK;
|
|
|
1102 data.wid.dwStreamAttributes = 0;
|
|
|
1103 data.wid.Size.LowPart = wlen; /* in bytes, not chars! */
|
|
|
1104 data.wid.Size.HighPart = 0;
|
|
|
1105 data.wid.dwStreamNameSize = 0;
|
|
|
1106
|
|
|
1107 if (BackupWrite (fileh, (LPBYTE)&data,
|
|
|
1108 offsetof (WIN32_STREAM_ID, cStreamName)
|
|
|
1109 + data.wid.Size.LowPart,
|
|
|
1110 &wbytes, FALSE, FALSE, &context)
|
|
|
1111 && BackupWrite (fileh, NULL, 0, &wbytes, TRUE, FALSE, &context))
|
|
|
1112 {
|
|
|
1113 /* succeeded */
|
|
|
1114 result = 0;
|
|
|
1115 }
|
|
|
1116 else
|
|
|
1117 {
|
|
|
1118 /* Should try mapping GetLastError to errno; for now just
|
|
|
1119 indicate a general error (eg. links not supported). */
|
|
1242
|
1120 errno = EINVAL; /* perhaps EMLINK? */
|
|
771
|
1121 }
|
|
|
1122 }
|
|
|
1123
|
|
|
1124 CloseHandle (fileh);
|
|
|
1125 }
|
|
|
1126 else
|
|
|
1127 errno = ENOENT;
|
|
|
1128
|
|
|
1129 return result;
|
|
|
1130 }
|
|
|
1131
|
|
|
1132 /* sys_open() merged into sysdep.c sys_open() */
|
|
|
1133
|
|
|
1134 int
|
|
867
|
1135 mswindows_rename (const Ibyte *oldname, const Ibyte *newname)
|
|
771
|
1136 {
|
|
|
1137 int result;
|
|
867
|
1138 Ibyte *temp;
|
|
771
|
1139
|
|
|
1140 /* MoveFile on Windows 95 doesn't correctly change the short file name
|
|
428
|
1141 alias in a number of circumstances (it is not easy to predict when
|
|
|
1142 just by looking at oldname and newname, unfortunately). In these
|
|
|
1143 cases, renaming through a temporary name avoids the problem.
|
|
|
1144
|
|
771
|
1145 A second problem on Windows 95 is that renaming through a temp name when
|
|
428
|
1146 newname is uppercase fails (the final long name ends up in
|
|
|
1147 lowercase, although the short alias might be uppercase) UNLESS the
|
|
|
1148 long temp name is not 8.3.
|
|
|
1149
|
|
771
|
1150 So, on Windows 95 we always rename through a temp name, and we make sure
|
|
428
|
1151 the temp name has a long extension to ensure correct renaming. */
|
|
|
1152
|
|
771
|
1153 /* XEmacs: We sprintf() part of OLDNAME into part of OLDNAME + a number,
|
|
|
1154 so the following calculation should certainly be enough. */
|
|
428
|
1155
|
|
867
|
1156 temp = qxestrcpy (alloca_ibytes (2 * qxestrlen (oldname) + 100), oldname);
|
|
771
|
1157
|
|
|
1158 if (mswindows_windows9x_p)
|
|
428
|
1159 {
|
|
867
|
1160 Ibyte *o;
|
|
|
1161 Ibyte *p;
|
|
771
|
1162 int i = 0;
|
|
428
|
1163
|
|
771
|
1164 if (o = qxestrrchr (oldname, '\\'))
|
|
|
1165 o++;
|
|
|
1166 else
|
|
867
|
1167 o = (Ibyte *) oldname;
|
|
771
|
1168
|
|
|
1169 if (p = qxestrrchr (temp, '\\'))
|
|
428
|
1170 p++;
|
|
|
1171 else
|
|
|
1172 p = temp;
|
|
771
|
1173
|
|
|
1174 do
|
|
|
1175 {
|
|
|
1176 Extbyte *oldext, *tempext;
|
|
|
1177 /* Force temp name to require a manufactured 8.3 alias - this
|
|
|
1178 seems to make the second rename work properly. */
|
|
|
1179 qxesprintf (p, "_.%s.%u", o, i);
|
|
|
1180 i++;
|
|
|
1181 C_STRING_TO_EXTERNAL (oldname, oldext, Qfile_name);
|
|
|
1182 C_STRING_TO_EXTERNAL (temp, tempext, Qfile_name);
|
|
|
1183 result = rename (oldext, tempext);
|
|
|
1184 }
|
|
|
1185 /* This loop must surely terminate! */
|
|
|
1186 while (result < 0 && errno == EEXIST);
|
|
|
1187 if (result < 0)
|
|
428
|
1188 return -1;
|
|
|
1189 }
|
|
|
1190
|
|
771
|
1191 /* Emulate Unix behaviour - newname is deleted if it already exists
|
|
428
|
1192 (at least if it is a file; don't do this for directories).
|
|
771
|
1193
|
|
|
1194 Since we mustn't do this if we are just changing the case of the
|
|
|
1195 file name (we would end up deleting the file we are trying to
|
|
|
1196 rename!), we let rename detect if the destination file already
|
|
|
1197 exists - that way we avoid the possible pitfalls of trying to
|
|
|
1198 determine ourselves whether two names really refer to the same
|
|
|
1199 file, which is not always possible in the general case. (Consider
|
|
|
1200 all the permutations of shared or subst'd drives, etc.) */
|
|
|
1201 {
|
|
|
1202 Extbyte *newext, *tempext;
|
|
|
1203
|
|
|
1204 C_STRING_TO_EXTERNAL (newname, newext, Qfile_name);
|
|
|
1205 C_STRING_TO_EXTERNAL (temp, tempext, Qfile_name);
|
|
|
1206 result = rename (tempext, newext);
|
|
428
|
1207
|
|
771
|
1208 if (result < 0
|
|
872
|
1209 && (errno == EEXIST || errno == EACCES)
|
|
771
|
1210 && _chmod (newext, 0666) == 0
|
|
|
1211 && _unlink (newext) == 0)
|
|
|
1212 result = rename (tempext, newext);
|
|
|
1213 }
|
|
|
1214
|
|
|
1215 return result;
|
|
|
1216 }
|
|
428
|
1217
|
|
771
|
1218 int
|
|
867
|
1219 mswindows_unlink (const Ibyte *path)
|
|
771
|
1220 {
|
|
|
1221 Extbyte *pathout;
|
|
|
1222
|
|
|
1223 C_STRING_TO_EXTERNAL (path, pathout, Qfile_name);
|
|
|
1224 /* On Unix, unlink works without write permission. */
|
|
|
1225 _chmod (pathout, 0666);
|
|
|
1226 return _unlink (pathout);
|
|
428
|
1227 }
|
|
|
1228
|
|
|
1229 static FILETIME utc_base_ft;
|
|
592
|
1230 static long double utc_base;
|
|
440
|
1231 static int init = 0;
|
|
771
|
1232 static LARGE_INTEGER utc_base_li;
|
|
440
|
1233
|
|
771
|
1234 /* XEmacs: We seem to have a new definition of
|
|
|
1235 mswindows_convert_time(), although I'm not sure why. --ben */
|
|
428
|
1236
|
|
|
1237 time_t
|
|
771
|
1238 mswindows_convert_time (FILETIME uft)
|
|
440
|
1239 {
|
|
|
1240 time_t ret;
|
|
|
1241 #ifndef MAXLONGLONG
|
|
|
1242 SYSTEMTIME st;
|
|
|
1243 struct tm t;
|
|
|
1244 FILETIME ft;
|
|
|
1245 TIME_ZONE_INFORMATION tzi;
|
|
|
1246 DWORD tzid;
|
|
|
1247 #else
|
|
|
1248 LARGE_INTEGER lft;
|
|
|
1249 #endif
|
|
|
1250
|
|
|
1251 if (!init)
|
|
|
1252 {
|
|
|
1253 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1254 SYSTEMTIME st;
|
|
|
1255
|
|
|
1256 st.wYear = 1970;
|
|
|
1257 st.wMonth = 1;
|
|
|
1258 st.wDay = 1;
|
|
|
1259 st.wHour = 0;
|
|
|
1260 st.wMinute = 0;
|
|
|
1261 st.wSecond = 0;
|
|
|
1262 st.wMilliseconds = 0;
|
|
|
1263
|
|
|
1264 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1265
|
|
|
1266 utc_base_li.LowPart = utc_base_ft.dwLowDateTime;
|
|
|
1267 utc_base_li.HighPart = utc_base_ft.dwHighDateTime;
|
|
|
1268
|
|
|
1269 init = 1;
|
|
|
1270 }
|
|
|
1271
|
|
|
1272 #ifdef MAXLONGLONG
|
|
|
1273
|
|
|
1274 /* On a compiler that supports long integers, do it the easy way */
|
|
|
1275 lft.LowPart = uft.dwLowDateTime;
|
|
|
1276 lft.HighPart = uft.dwHighDateTime;
|
|
|
1277 ret = (time_t) ((lft.QuadPart - utc_base_li.QuadPart) / 10000000);
|
|
|
1278
|
|
|
1279 #else
|
|
|
1280
|
|
|
1281 /* Do it the hard way using mktime. */
|
|
|
1282 FileTimeToLocalFileTime(&uft, &ft);
|
|
|
1283 FileTimeToSystemTime (&ft, &st);
|
|
|
1284 tzid = GetTimeZoneInformation (&tzi);
|
|
|
1285 t.tm_year = st.wYear - 1900;
|
|
|
1286 t.tm_mon = st.wMonth - 1;
|
|
|
1287 t.tm_mday = st.wDay;
|
|
|
1288 t.tm_hour = st.wHour;
|
|
|
1289 t.tm_min = st.wMinute;
|
|
|
1290 t.tm_sec = st.wSecond;
|
|
|
1291 t.tm_isdst = (tzid == TIME_ZONE_ID_DAYLIGHT);
|
|
|
1292 /* st.wMilliseconds not applicable */
|
|
|
1293 ret = mktime(&t);
|
|
|
1294 if (ret == -1)
|
|
|
1295 {
|
|
|
1296 ret = 0;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 #endif
|
|
|
1300
|
|
|
1301 return ret;
|
|
|
1302 }
|
|
428
|
1303
|
|
771
|
1304 static void
|
|
428
|
1305 convert_from_time_t (time_t time, FILETIME * pft)
|
|
|
1306 {
|
|
|
1307 long double tmp;
|
|
|
1308
|
|
|
1309 if (!init)
|
|
|
1310 {
|
|
|
1311 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1312 SYSTEMTIME st;
|
|
|
1313
|
|
|
1314 st.wYear = 1970;
|
|
|
1315 st.wMonth = 1;
|
|
|
1316 st.wDay = 1;
|
|
|
1317 st.wHour = 0;
|
|
|
1318 st.wMinute = 0;
|
|
|
1319 st.wSecond = 0;
|
|
|
1320 st.wMilliseconds = 0;
|
|
|
1321
|
|
|
1322 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1323 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1324 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1325 init = 1;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 /* time in 100ns units since 1-Jan-1601 */
|
|
|
1329 tmp = (long double) time * 1e7 + utc_base;
|
|
|
1330 pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024));
|
|
771
|
1331 pft->dwLowDateTime = (DWORD) (tmp - (4096.0 * 1024 * 1024) *
|
|
|
1332 pft->dwHighDateTime);
|
|
428
|
1333 }
|
|
|
1334
|
|
|
1335 #if 0
|
|
771
|
1336 /* A comment from Emacs 20.6:
|
|
|
1337
|
|
|
1338 No reason to keep this; faking inode values either by hashing or even
|
|
428
|
1339 using the file index from GetInformationByHandle, is not perfect and
|
|
|
1340 so by default Emacs doesn't use the inode values on Windows.
|
|
|
1341 Instead, we now determine file-truename correctly (except for
|
|
|
1342 possible drive aliasing etc). */
|
|
|
1343
|
|
771
|
1344 /* XEmacs: Removed the fake-inodes code here, which was if 0'd out.
|
|
|
1345 If you want it, look in w32.c in Emacs 20.6. */
|
|
428
|
1346 #endif
|
|
|
1347
|
|
442
|
1348 /* #### aichner@ecf.teradyne.com reported that with the library
|
|
|
1349 provided stat/fstat, (file-exist "d:\\tmp\\") =>> nil,
|
|
|
1350 (file-exist "d:\\tmp") =>> t, when d:\tmp exists. Whenever
|
|
|
1351 we opt to use non-encapsulated stat(), this should serve as
|
|
|
1352 a compatibility test. --kkm */
|
|
440
|
1353
|
|
771
|
1354 /* Provide fstat and utime as well as stat for consistent handling of
|
|
|
1355 file timestamps. */
|
|
442
|
1356 int
|
|
771
|
1357 mswindows_fstat (int desc, struct stat *buf)
|
|
432
|
1358 {
|
|
448
|
1359 HANDLE fh = (HANDLE) _get_osfhandle (desc);
|
|
|
1360 BY_HANDLE_FILE_INFORMATION info;
|
|
|
1361 DWORD fake_inode;
|
|
|
1362 int permission;
|
|
|
1363
|
|
|
1364 switch (GetFileType (fh) & ~FILE_TYPE_REMOTE)
|
|
432
|
1365 {
|
|
448
|
1366 case FILE_TYPE_DISK:
|
|
|
1367 buf->st_mode = _S_IFREG;
|
|
|
1368 if (!GetFileInformationByHandle (fh, &info))
|
|
|
1369 {
|
|
|
1370 errno = EACCES;
|
|
|
1371 return -1;
|
|
|
1372 }
|
|
|
1373 break;
|
|
|
1374 case FILE_TYPE_PIPE:
|
|
|
1375 buf->st_mode = _S_IFIFO;
|
|
|
1376 goto non_disk;
|
|
|
1377 case FILE_TYPE_CHAR:
|
|
|
1378 case FILE_TYPE_UNKNOWN:
|
|
|
1379 default:
|
|
|
1380 buf->st_mode = _S_IFCHR;
|
|
|
1381 non_disk:
|
|
|
1382 memset (&info, 0, sizeof (info));
|
|
|
1383 info.dwFileAttributes = 0;
|
|
|
1384 info.ftCreationTime = utc_base_ft;
|
|
|
1385 info.ftLastAccessTime = utc_base_ft;
|
|
|
1386 info.ftLastWriteTime = utc_base_ft;
|
|
|
1387 }
|
|
|
1388
|
|
|
1389 if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1390 {
|
|
|
1391 buf->st_mode = _S_IFDIR;
|
|
|
1392 buf->st_nlink = 2; /* doesn't really matter */
|
|
|
1393 fake_inode = 0; /* this doesn't either I think */
|
|
432
|
1394 }
|
|
|
1395 else
|
|
|
1396 {
|
|
462
|
1397 buf->st_nlink = (short) info.nNumberOfLinks;
|
|
448
|
1398 /* Might as well use file index to fake inode values, but this
|
|
|
1399 is not guaranteed to be unique unless we keep a handle open
|
|
|
1400 all the time (even then there are situations where it is
|
|
|
1401 not unique). Reputedly, there are at most 48 bits of info
|
|
|
1402 (on NTFS, presumably less on FAT). */
|
|
|
1403 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh;
|
|
432
|
1404 }
|
|
448
|
1405
|
|
|
1406 /* MSVC defines _ino_t to be short; other libc's might not. */
|
|
|
1407 if (sizeof (buf->st_ino) == 2)
|
|
462
|
1408 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16));
|
|
448
|
1409 else
|
|
462
|
1410 buf->st_ino = (unsigned short) fake_inode;
|
|
448
|
1411
|
|
|
1412 /* consider files to belong to current user */
|
|
|
1413 buf->st_uid = 0;
|
|
|
1414 buf->st_gid = 0;
|
|
|
1415
|
|
|
1416 buf->st_dev = info.dwVolumeSerialNumber;
|
|
|
1417 buf->st_rdev = info.dwVolumeSerialNumber;
|
|
|
1418
|
|
|
1419 buf->st_size = info.nFileSizeLow;
|
|
|
1420
|
|
|
1421 /* Convert timestamps to Unix format. */
|
|
771
|
1422 buf->st_mtime = mswindows_convert_time (info.ftLastWriteTime);
|
|
|
1423 buf->st_atime = mswindows_convert_time (info.ftLastAccessTime);
|
|
448
|
1424 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
|
|
771
|
1425 buf->st_ctime = mswindows_convert_time (info.ftCreationTime);
|
|
448
|
1426 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
|
|
|
1427
|
|
|
1428 /* determine rwx permissions */
|
|
|
1429 if (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
|
|
|
1430 permission = _S_IREAD;
|
|
|
1431 else
|
|
|
1432 permission = _S_IREAD | _S_IWRITE;
|
|
|
1433
|
|
|
1434 if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1435 permission |= _S_IEXEC;
|
|
771
|
1436 else
|
|
|
1437 {
|
|
|
1438 #if 0 /* no way of knowing the filename */
|
|
1204
|
1439 if (mswindows_is_executable (name))
|
|
771
|
1440 permission |= _S_IEXEC;
|
|
|
1441 #endif
|
|
|
1442 }
|
|
448
|
1443
|
|
|
1444 buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
|
|
|
1445
|
|
|
1446 return 0;
|
|
432
|
1447 }
|
|
|
1448
|
|
428
|
1449 /* MSVC stat function can't cope with UNC names and has other bugs, so
|
|
|
1450 replace it with our own. This also allows us to calculate consistent
|
|
|
1451 inode values without hacks in the main Emacs code. */
|
|
|
1452 int
|
|
867
|
1453 mswindows_stat (const Ibyte *path, struct stat *buf)
|
|
428
|
1454 {
|
|
867
|
1455 Ibyte *name, *r;
|
|
771
|
1456 WIN32_FIND_DATAW wfd;
|
|
428
|
1457 HANDLE fh;
|
|
|
1458 DWORD fake_inode;
|
|
|
1459 int permission;
|
|
771
|
1460 Bytecount len;
|
|
428
|
1461 int rootdir = FALSE;
|
|
771
|
1462 Extbyte *nameext;
|
|
819
|
1463 int errm;
|
|
428
|
1464
|
|
|
1465 if (path == NULL || buf == NULL)
|
|
|
1466 {
|
|
|
1467 errno = EFAULT;
|
|
|
1468 return -1;
|
|
|
1469 }
|
|
|
1470
|
|
867
|
1471 name = qxestrcpy (alloca_ibytes (qxestrlen (path) + 10), path);
|
|
819
|
1472 errm = SetErrorMode (SEM_FAILCRITICALERRORS
|
|
|
1473 | SEM_NOOPENFILEERRORBOX);
|
|
771
|
1474
|
|
|
1475 get_volume_info (name, &path);
|
|
|
1476 /* must be valid filename, no wild cards or other invalid characters */
|
|
|
1477 if (qxestrpbrk (name, "*?|<>\""))
|
|
428
|
1478 {
|
|
|
1479 errno = ENOENT;
|
|
|
1480 return -1;
|
|
|
1481 }
|
|
|
1482
|
|
771
|
1483 /* If name is "c:/.." or "/.." then stat "c:/" or "/". */
|
|
|
1484 r = IS_DEVICE_SEP (name[1]) ? &name[2] : name;
|
|
|
1485 if (IS_DIRECTORY_SEP (r[0]) && r[1] == '.' && r[2] == '.' && r[3] == '\0')
|
|
|
1486 {
|
|
|
1487 r[1] = r[2] = '\0';
|
|
|
1488 }
|
|
|
1489
|
|
428
|
1490 /* Remove trailing directory separator, unless name is the root
|
|
|
1491 directory of a drive or UNC volume in which case ensure there
|
|
|
1492 is a trailing separator. */
|
|
771
|
1493 len = qxestrlen (name);
|
|
428
|
1494 rootdir = (path >= name + len - 1
|
|
|
1495 && (IS_DIRECTORY_SEP (*path) || *path == 0));
|
|
771
|
1496
|
|
|
1497 if (is_unc_volume (name))
|
|
|
1498 {
|
|
|
1499 DWORD attrs = unc_volume_file_attributes (name);
|
|
|
1500
|
|
|
1501 if (attrs == -1)
|
|
|
1502 return -1;
|
|
428
|
1503
|
|
771
|
1504 memset (&wfd, 0, sizeof (wfd));
|
|
|
1505 wfd.dwFileAttributes = attrs;
|
|
|
1506 wfd.ftCreationTime = utc_base_ft;
|
|
|
1507 wfd.ftLastAccessTime = utc_base_ft;
|
|
|
1508 wfd.ftLastWriteTime = utc_base_ft;
|
|
|
1509 /* XEmacs deleted: strcpy (wfd.cFileName, name);
|
|
|
1510 Not used later on. */
|
|
|
1511 }
|
|
|
1512 else if (rootdir)
|
|
428
|
1513 {
|
|
|
1514 if (!IS_DIRECTORY_SEP (name[len-1]))
|
|
867
|
1515 qxestrcat (name, (Ibyte *) "\\");
|
|
771
|
1516 C_STRING_TO_TSTR (name, nameext);
|
|
|
1517 if (qxeGetDriveType (nameext) < 2)
|
|
428
|
1518 {
|
|
819
|
1519 SetErrorMode (errm);
|
|
428
|
1520 errno = ENOENT;
|
|
|
1521 return -1;
|
|
|
1522 }
|
|
|
1523 memset (&wfd, 0, sizeof (wfd));
|
|
|
1524 wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
|
|
|
1525 wfd.ftCreationTime = utc_base_ft;
|
|
|
1526 wfd.ftLastAccessTime = utc_base_ft;
|
|
|
1527 wfd.ftLastWriteTime = utc_base_ft;
|
|
771
|
1528 /* XEmacs deleted: strcpy (wfd.cFileName, name);
|
|
|
1529 Not used later on. */
|
|
428
|
1530 }
|
|
|
1531 else
|
|
|
1532 {
|
|
|
1533 if (IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1534 name[len - 1] = 0;
|
|
|
1535
|
|
|
1536 /* (This is hacky, but helps when doing file completions on
|
|
|
1537 network drives.) Optimize by using information available from
|
|
|
1538 active readdir if possible. */
|
|
771
|
1539 if (dir_pathname)
|
|
|
1540 {
|
|
|
1541 len = qxestrlen (dir_pathname);
|
|
|
1542 if (len && IS_DIRECTORY_SEP (dir_pathname[len-1]))
|
|
|
1543 len--;
|
|
|
1544 }
|
|
|
1545 if (dir_find_handle != INVALID_HANDLE_VALUE
|
|
|
1546 && dir_pathname
|
|
801
|
1547 && qxestrncasecmp_i18n (dir_pathname, name, len) == 0
|
|
771
|
1548 && IS_DIRECTORY_SEP (name[len])
|
|
|
1549 && qxestrcasecmp_i18n (name + len + 1,
|
|
867
|
1550 (Ibyte *) dir_static.d_name) == 0)
|
|
428
|
1551 {
|
|
|
1552 /* This was the last entry returned by readdir. */
|
|
|
1553 wfd = dir_find_data;
|
|
|
1554 }
|
|
|
1555 else
|
|
|
1556 {
|
|
771
|
1557 C_STRING_TO_TSTR (name, nameext);
|
|
|
1558 fh = qxeFindFirstFile (nameext, &wfd);
|
|
|
1559 if (fh == INVALID_HANDLE_VALUE)
|
|
|
1560 {
|
|
819
|
1561 SetErrorMode (errm);
|
|
771
|
1562 errno = ENOENT;
|
|
|
1563 return -1;
|
|
|
1564 }
|
|
|
1565 FindClose (fh);
|
|
|
1566 /* XEmacs: Don't need to convert wfd.cFileName because
|
|
|
1567 not used later on. */
|
|
428
|
1568 }
|
|
|
1569 }
|
|
|
1570
|
|
|
1571 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1572 {
|
|
|
1573 buf->st_mode = _S_IFDIR;
|
|
|
1574 buf->st_nlink = 2; /* doesn't really matter */
|
|
|
1575 fake_inode = 0; /* this doesn't either I think */
|
|
|
1576 }
|
|
771
|
1577 else
|
|
428
|
1578 {
|
|
771
|
1579 if (!NILP (Vmswindows_get_true_file_attributes))
|
|
|
1580 C_STRING_TO_TSTR (name, nameext);
|
|
|
1581 if (!NILP (Vmswindows_get_true_file_attributes)
|
|
|
1582 /* No access rights required to get info. */
|
|
|
1583 && (fh = qxeCreateFile (nameext, 0, 0, NULL, OPEN_EXISTING, 0, NULL))
|
|
|
1584 != INVALID_HANDLE_VALUE)
|
|
|
1585 {
|
|
|
1586 /* This is more accurate in terms of gettting the correct number
|
|
|
1587 of links, but is quite slow (it is noticable when Emacs is
|
|
|
1588 making a list of file name completions). */
|
|
|
1589 BY_HANDLE_FILE_INFORMATION info;
|
|
428
|
1590
|
|
771
|
1591 if (GetFileInformationByHandle (fh, &info))
|
|
|
1592 {
|
|
|
1593 buf->st_nlink = (short) info.nNumberOfLinks;
|
|
|
1594 /* Might as well use file index to fake inode values, but this
|
|
|
1595 is not guaranteed to be unique unless we keep a handle open
|
|
|
1596 all the time (even then there are situations where it is
|
|
|
1597 not unique). Reputedly, there are at most 48 bits of info
|
|
|
1598 (on NTFS, presumably less on FAT). */
|
|
|
1599 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh;
|
|
|
1600 }
|
|
|
1601 else
|
|
|
1602 {
|
|
|
1603 buf->st_nlink = 1;
|
|
|
1604 fake_inode = 0;
|
|
|
1605 }
|
|
428
|
1606
|
|
|
1607 switch (GetFileType (fh))
|
|
|
1608 {
|
|
|
1609 case FILE_TYPE_DISK:
|
|
|
1610 buf->st_mode = _S_IFREG;
|
|
|
1611 break;
|
|
|
1612 case FILE_TYPE_PIPE:
|
|
|
1613 buf->st_mode = _S_IFIFO;
|
|
|
1614 break;
|
|
|
1615 case FILE_TYPE_CHAR:
|
|
|
1616 case FILE_TYPE_UNKNOWN:
|
|
|
1617 default:
|
|
|
1618 buf->st_mode = _S_IFCHR;
|
|
|
1619 }
|
|
|
1620 CloseHandle (fh);
|
|
|
1621 }
|
|
|
1622 else
|
|
|
1623 {
|
|
771
|
1624 /* Don't bother to make this information more accurate. */
|
|
|
1625 buf->st_mode = _S_IFREG;
|
|
|
1626 buf->st_nlink = 1;
|
|
|
1627 fake_inode = 0;
|
|
428
|
1628 }
|
|
|
1629 }
|
|
|
1630
|
|
819
|
1631 SetErrorMode (errm);
|
|
|
1632
|
|
428
|
1633 #if 0
|
|
771
|
1634 /* XEmacs: Removed the fake-inodes code here, which was if 0'd out.
|
|
|
1635 If you want it, look in w32.c in Emacs 20.6. */
|
|
428
|
1636 #endif
|
|
|
1637
|
|
771
|
1638 /* MSVC defines _ino_t to be short; other libc's might not. */
|
|
|
1639 if (sizeof (buf->st_ino) == 2)
|
|
|
1640 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16));
|
|
|
1641 else
|
|
|
1642 buf->st_ino = (unsigned short) fake_inode;
|
|
428
|
1643
|
|
|
1644 /* consider files to belong to current user */
|
|
771
|
1645 buf->st_uid = the_passwd.pw_uid;
|
|
|
1646 buf->st_gid = the_passwd.pw_gid;
|
|
428
|
1647
|
|
771
|
1648 /* volume_info is set by get_volume_info */
|
|
428
|
1649 buf->st_dev = volume_info.serialnum;
|
|
|
1650 buf->st_rdev = volume_info.serialnum;
|
|
|
1651
|
|
771
|
1652
|
|
428
|
1653 buf->st_size = wfd.nFileSizeLow;
|
|
|
1654
|
|
|
1655 /* Convert timestamps to Unix format. */
|
|
771
|
1656 buf->st_mtime = mswindows_convert_time (wfd.ftLastWriteTime);
|
|
|
1657 buf->st_atime = mswindows_convert_time (wfd.ftLastAccessTime);
|
|
428
|
1658 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
|
|
771
|
1659 buf->st_ctime = mswindows_convert_time (wfd.ftCreationTime);
|
|
428
|
1660 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
|
|
|
1661
|
|
|
1662 /* determine rwx permissions */
|
|
|
1663 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
|
|
|
1664 permission = _S_IREAD;
|
|
|
1665 else
|
|
|
1666 permission = _S_IREAD | _S_IWRITE;
|
|
|
1667
|
|
|
1668 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1669 permission |= _S_IEXEC;
|
|
1204
|
1670 else if (mswindows_is_executable (name))
|
|
771
|
1671 permission |= _S_IEXEC;
|
|
428
|
1672
|
|
|
1673 buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
|
|
|
1674
|
|
|
1675 return 0;
|
|
|
1676 }
|
|
|
1677
|
|
|
1678 int
|
|
771
|
1679 mswindows_utime (Lisp_Object path, struct utimbuf *times)
|
|
428
|
1680 {
|
|
771
|
1681 /* #### Supposedly we're providing this because standard utime()
|
|
|
1682 might not work; or at the very least to get consistent results
|
|
|
1683 since we replace other time-handling routines in stat. But out
|
|
|
1684 replacement doesn't seem to work, probably due to some subtle bug
|
|
|
1685 in this routine, which should be investigated eventually. So for
|
|
|
1686 the moment, we just use utime(), which conceivably might be
|
|
|
1687 slightly off in comparison with our own routines? Seems strange,
|
|
|
1688 and so far no problems seen. --ben */
|
|
428
|
1689
|
|
771
|
1690 struct utimbuf deftime;
|
|
|
1691 #if 0
|
|
|
1692 HANDLE fh;
|
|
|
1693 #endif
|
|
|
1694 static FILETIME mtime;
|
|
|
1695 static FILETIME atime;
|
|
|
1696 Extbyte *filename;
|
|
428
|
1697
|
|
771
|
1698 if (times == NULL)
|
|
428
|
1699 {
|
|
771
|
1700 deftime.modtime = deftime.actime = time (NULL);
|
|
|
1701 times = &deftime;
|
|
428
|
1702 }
|
|
|
1703
|
|
771
|
1704 LISP_STRING_TO_TSTR (path, filename);
|
|
|
1705 /* APA: SetFileTime fails to set mtime correctly (always 1-Jan-1970) */
|
|
|
1706 #if 0
|
|
|
1707 /* Need write access to set times. */
|
|
|
1708 fh = qxeCreateFile (filename, GENERIC_WRITE,
|
|
|
1709 FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
|
1710 0, OPEN_EXISTING, 0, NULL);
|
|
|
1711 if (fh)
|
|
|
1712 {
|
|
|
1713 convert_from_time_t (times->actime, &atime);
|
|
|
1714 convert_from_time_t (times->modtime, &mtime);
|
|
|
1715 if (!SetFileTime (fh, NULL, &atime, &mtime))
|
|
|
1716 {
|
|
|
1717 CloseHandle (fh);
|
|
|
1718 errno = EACCES;
|
|
|
1719 return -1;
|
|
|
1720 }
|
|
|
1721 CloseHandle (fh);
|
|
|
1722 }
|
|
|
1723 else
|
|
|
1724 {
|
|
|
1725 errno = EINVAL;
|
|
|
1726 return -1;
|
|
|
1727 }
|
|
|
1728 return 0;
|
|
|
1729 #else
|
|
|
1730 {
|
|
|
1731 struct _utimbuf newtimes;
|
|
|
1732
|
|
|
1733 newtimes.actime = times->actime;
|
|
|
1734 newtimes.modtime = times->modtime;
|
|
|
1735
|
|
|
1736 if (XEUNICODE_P)
|
|
|
1737 return _wutime ((const wchar_t *) filename, &newtimes);
|
|
|
1738 else
|
|
|
1739 return _utime (filename, &newtimes);
|
|
|
1740 }
|
|
|
1741 #endif
|
|
|
1742 }
|
|
|
1743
|
|
867
|
1744 Ibyte *
|
|
771
|
1745 mswindows_getdcwd (int drivelet)
|
|
|
1746 {
|
|
|
1747 Extbyte *cwdext;
|
|
867
|
1748 Ibyte *cwd;
|
|
771
|
1749
|
|
|
1750 if (XEUNICODE_P)
|
|
|
1751 cwdext = (Extbyte *) _wgetdcwd (drivelet, NULL, 0);
|
|
|
1752 else
|
|
|
1753 cwdext = _getdcwd (drivelet, NULL, 0);
|
|
|
1754 TSTR_TO_C_STRING_MALLOC (cwdext, cwd);
|
|
1726
|
1755 xfree (cwdext, Extbyte *);
|
|
771
|
1756 return cwd;
|
|
428
|
1757 }
|
|
|
1758
|
|
442
|
1759
|
|
|
1760 /*--------------------------------------------------------------------*/
|
|
|
1761 /* Memory-mapped files */
|
|
|
1762 /*--------------------------------------------------------------------*/
|
|
|
1763
|
|
428
|
1764 int
|
|
867
|
1765 open_input_file (file_data *p_file, const Ibyte *filename)
|
|
428
|
1766 {
|
|
442
|
1767 /* Synched with FSF 20.6. We fixed some warnings. */
|
|
428
|
1768 HANDLE file;
|
|
|
1769 HANDLE file_mapping;
|
|
771
|
1770 void *file_base;
|
|
428
|
1771 DWORD size, upper_size;
|
|
771
|
1772 Extbyte *fileext;
|
|
428
|
1773
|
|
771
|
1774 C_STRING_TO_TSTR (filename, fileext);
|
|
|
1775
|
|
|
1776 file = qxeCreateFile (fileext, GENERIC_READ, FILE_SHARE_READ, NULL,
|
|
|
1777 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
|
|
428
|
1778 if (file == INVALID_HANDLE_VALUE)
|
|
|
1779 return FALSE;
|
|
|
1780
|
|
|
1781 size = GetFileSize (file, &upper_size);
|
|
771
|
1782 file_mapping = qxeCreateFileMapping (file, NULL, PAGE_READONLY,
|
|
|
1783 0, size, NULL);
|
|
428
|
1784 if (!file_mapping)
|
|
|
1785 return FALSE;
|
|
|
1786
|
|
|
1787 file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size);
|
|
|
1788 if (file_base == 0)
|
|
|
1789 return FALSE;
|
|
|
1790
|
|
771
|
1791 p_file->name = filename;
|
|
442
|
1792 p_file->size = size;
|
|
|
1793 p_file->file = file;
|
|
|
1794 p_file->file_mapping = file_mapping;
|
|
771
|
1795 p_file->file_base = file_base;
|
|
442
|
1796
|
|
|
1797 return TRUE;
|
|
|
1798 }
|
|
|
1799
|
|
|
1800 int
|
|
867
|
1801 open_output_file (file_data *p_file, const Ibyte *filename,
|
|
771
|
1802 unsigned long size)
|
|
442
|
1803 {
|
|
|
1804 /* Synched with FSF 20.6. We fixed some warnings. */
|
|
|
1805 HANDLE file;
|
|
|
1806 HANDLE file_mapping;
|
|
771
|
1807 void *file_base;
|
|
|
1808 Extbyte *fileext;
|
|
442
|
1809
|
|
771
|
1810 C_STRING_TO_TSTR (filename, fileext);
|
|
|
1811
|
|
|
1812 file = qxeCreateFile (fileext, GENERIC_READ | GENERIC_WRITE, 0, NULL,
|
|
|
1813 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
|
|
442
|
1814 if (file == INVALID_HANDLE_VALUE)
|
|
|
1815 return FALSE;
|
|
|
1816
|
|
771
|
1817 file_mapping = qxeCreateFileMapping (file, NULL, PAGE_READWRITE,
|
|
|
1818 0, size, NULL);
|
|
442
|
1819 if (!file_mapping)
|
|
|
1820 return FALSE;
|
|
|
1821
|
|
|
1822 file_base = MapViewOfFile (file_mapping, FILE_MAP_WRITE, 0, 0, size);
|
|
|
1823 if (file_base == NULL)
|
|
|
1824 return FALSE;
|
|
|
1825
|
|
|
1826 p_file->name = filename;
|
|
428
|
1827 p_file->size = size;
|
|
|
1828 p_file->file = file;
|
|
|
1829 p_file->file_mapping = file_mapping;
|
|
771
|
1830 p_file->file_base = file_base;
|
|
428
|
1831
|
|
|
1832 return TRUE;
|
|
|
1833 }
|
|
|
1834
|
|
442
|
1835 #if 1 /* !defined(MINGW) */
|
|
|
1836 /* Return pointer to section header for section containing the given
|
|
|
1837 relative virtual address. */
|
|
|
1838 static IMAGE_SECTION_HEADER *
|
|
771
|
1839 rva_to_section (DWORD rva, IMAGE_NT_HEADERS *nt_header)
|
|
442
|
1840 {
|
|
|
1841 /* Synched with FSF 20.6. We added MINGW stuff. */
|
|
|
1842 PIMAGE_SECTION_HEADER section;
|
|
|
1843 int i;
|
|
|
1844
|
|
|
1845 section = IMAGE_FIRST_SECTION (nt_header);
|
|
|
1846
|
|
|
1847 for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++)
|
|
|
1848 {
|
|
|
1849 /* Some linkers (eg. the NT SDK linker I believe) swapped the
|
|
|
1850 meaning of these two values - or rather, they ignored
|
|
|
1851 VirtualSize entirely and always set it to zero. This affects
|
|
|
1852 some very old exes (eg. gzip dated Dec 1993). Since
|
|
|
1853 mswindows_executable_type relies on this function to work reliably,
|
|
|
1854 we need to cope with this. */
|
|
|
1855 DWORD real_size = max (section->SizeOfRawData,
|
|
|
1856 section->Misc.VirtualSize);
|
|
|
1857 if (rva >= section->VirtualAddress
|
|
|
1858 && rva < section->VirtualAddress + real_size)
|
|
|
1859 return section;
|
|
|
1860 section++;
|
|
|
1861 }
|
|
|
1862 return NULL;
|
|
|
1863 }
|
|
|
1864 #endif
|
|
|
1865
|
|
|
1866 void
|
|
867
|
1867 mswindows_executable_type (const Ibyte *filename, int *is_dos_app,
|
|
771
|
1868 int *is_cygnus_app)
|
|
442
|
1869 {
|
|
|
1870 /* Synched with FSF 20.6. We added MINGW stuff and casts. */
|
|
|
1871 file_data executable;
|
|
867
|
1872 Ibyte *p;
|
|
442
|
1873
|
|
|
1874 /* Default values in case we can't tell for sure. */
|
|
|
1875 *is_dos_app = FALSE;
|
|
|
1876 *is_cygnus_app = FALSE;
|
|
|
1877
|
|
|
1878 if (!open_input_file (&executable, filename))
|
|
|
1879 return;
|
|
|
1880
|
|
771
|
1881 p = qxestrrchr (filename, '.');
|
|
442
|
1882
|
|
|
1883 /* We can only identify DOS .com programs from the extension. */
|
|
1204
|
1884 if (p && qxestrcasecmp_c (p, ".com") == 0)
|
|
442
|
1885 *is_dos_app = TRUE;
|
|
1204
|
1886 else if (p && (qxestrcasecmp_c (p, ".bat") == 0 ||
|
|
|
1887 qxestrcasecmp_c (p, ".cmd") == 0))
|
|
442
|
1888 {
|
|
|
1889 /* A DOS shell script - it appears that CreateProcess is happy to
|
|
|
1890 accept this (somewhat surprisingly); presumably it looks at
|
|
|
1891 COMSPEC to determine what executable to actually invoke.
|
|
|
1892 Therefore, we have to do the same here as well. */
|
|
|
1893 /* Actually, I think it uses the program association for that
|
|
|
1894 extension, which is defined in the registry. */
|
|
|
1895 p = egetenv ("COMSPEC");
|
|
|
1896 if (p)
|
|
|
1897 mswindows_executable_type (p, is_dos_app, is_cygnus_app);
|
|
|
1898 }
|
|
|
1899 else
|
|
|
1900 {
|
|
|
1901 /* Look for DOS .exe signature - if found, we must also check that
|
|
|
1902 it isn't really a 16- or 32-bit Windows exe, since both formats
|
|
|
1903 start with a DOS program stub. Note that 16-bit Windows
|
|
|
1904 executables use the OS/2 1.x format. */
|
|
|
1905
|
|
|
1906 #if 0 /* defined( MINGW ) */
|
|
771
|
1907 /* mingw doesn't have enough headers to detect cygwin
|
|
442
|
1908 apps, just do what we can. */
|
|
771
|
1909 FILHDR *exe_header;
|
|
442
|
1910
|
|
771
|
1911 exe_header = (FILHDR *) executable.file_base;
|
|
442
|
1912 if (exe_header->e_magic != DOSMAGIC)
|
|
|
1913 goto unwind;
|
|
|
1914
|
|
771
|
1915 if ((char *) exe_header->e_lfanew > (char *) executable.size)
|
|
442
|
1916 {
|
|
|
1917 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */
|
|
|
1918 *is_dos_app = TRUE;
|
|
|
1919 }
|
|
|
1920 else if (exe_header->nt_signature != NT_SIGNATURE)
|
|
|
1921 {
|
|
|
1922 *is_dos_app = TRUE;
|
|
|
1923 }
|
|
|
1924 #else
|
|
771
|
1925 IMAGE_DOS_HEADER *dos_header;
|
|
|
1926 IMAGE_NT_HEADERS *nt_header;
|
|
442
|
1927
|
|
|
1928 dos_header = (PIMAGE_DOS_HEADER) executable.file_base;
|
|
|
1929 if (dos_header->e_magic != IMAGE_DOS_SIGNATURE)
|
|
|
1930 goto unwind;
|
|
|
1931
|
|
771
|
1932 nt_header = (PIMAGE_NT_HEADERS) ((char *) dos_header +
|
|
|
1933 dos_header->e_lfanew);
|
|
442
|
1934
|
|
771
|
1935 if ((char *) nt_header > (char *) dos_header + executable.size)
|
|
442
|
1936 {
|
|
|
1937 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */
|
|
|
1938 *is_dos_app = TRUE;
|
|
|
1939 }
|
|
|
1940 else if (nt_header->Signature != IMAGE_NT_SIGNATURE &&
|
|
|
1941 LOWORD (nt_header->Signature) != IMAGE_OS2_SIGNATURE)
|
|
|
1942 {
|
|
|
1943 *is_dos_app = TRUE;
|
|
|
1944 }
|
|
|
1945 else if (nt_header->Signature == IMAGE_NT_SIGNATURE)
|
|
|
1946 {
|
|
|
1947 /* Look for cygwin.dll in DLL import list. */
|
|
|
1948 IMAGE_DATA_DIRECTORY import_dir =
|
|
771
|
1949 nt_header->OptionalHeader.
|
|
|
1950 DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
|
|
|
1951 IMAGE_IMPORT_DESCRIPTOR *imports;
|
|
|
1952 IMAGE_SECTION_HEADER *section;
|
|
442
|
1953
|
|
|
1954 section = rva_to_section (import_dir.VirtualAddress, nt_header);
|
|
771
|
1955 imports =
|
|
|
1956 (IMAGE_IMPORT_DESCRIPTOR *) RVA_TO_PTR (import_dir.VirtualAddress,
|
|
|
1957 section, executable);
|
|
|
1958
|
|
442
|
1959 for ( ; imports->Name; imports++)
|
|
|
1960 {
|
|
771
|
1961 Extbyte *dllname_ext =
|
|
|
1962 (Extbyte *) RVA_TO_PTR (imports->Name, section, executable);
|
|
867
|
1963 Ibyte *dllname;
|
|
771
|
1964
|
|
|
1965 EXTERNAL_TO_C_STRING (dllname_ext, dllname, Qbinary);
|
|
442
|
1966
|
|
|
1967 /* The exact name of the cygwin dll has changed with
|
|
|
1968 various releases, but hopefully this will be reasonably
|
|
|
1969 future proof. */
|
|
867
|
1970 if (qxestrncasecmp (dllname, (Ibyte *) "cygwin", 6) == 0)
|
|
442
|
1971 {
|
|
|
1972 *is_cygnus_app = TRUE;
|
|
|
1973 break;
|
|
|
1974 }
|
|
|
1975 }
|
|
|
1976 }
|
|
|
1977 #endif
|
|
|
1978 }
|
|
|
1979
|
|
|
1980 unwind:
|
|
|
1981 close_file_data (&executable);
|
|
|
1982 }
|
|
|
1983
|
|
428
|
1984 /* Close the system structures associated with the given file. */
|
|
|
1985 void
|
|
|
1986 close_file_data (file_data *p_file)
|
|
|
1987 {
|
|
611
|
1988 UnmapViewOfFile (p_file->file_base);
|
|
|
1989 CloseHandle (p_file->file_mapping);
|
|
|
1990 CloseHandle (p_file->file);
|
|
428
|
1991 }
|
|
|
1992
|
|
771
|
1993
|
|
|
1994 /* Some miscellaneous functions that are Windows specific, but not GUI
|
|
|
1995 specific (ie. are applicable in terminal or batch mode as well). */
|
|
|
1996
|
|
|
1997 DEFUN ("mswindows-short-file-name", Fmswindows_short_file_name, 1, 1, "", /*
|
|
|
1998 Return the short file name version (8.3) of the full path of FILENAME.
|
|
|
1999 If FILENAME does not exist, return nil.
|
|
|
2000 All path elements in FILENAME are converted to their short names.
|
|
|
2001 */
|
|
|
2002 (filename))
|
|
|
2003 {
|
|
|
2004 Extbyte shortname[MAX_PATH * MAX_XETCHAR_SIZE];
|
|
|
2005 Extbyte *fileext;
|
|
867
|
2006 Ibyte *shortint;
|
|
771
|
2007
|
|
|
2008 CHECK_STRING (filename);
|
|
|
2009
|
|
|
2010 /* first expand it. */
|
|
|
2011 filename = Fexpand_file_name (filename, Qnil);
|
|
|
2012
|
|
|
2013 LISP_STRING_TO_TSTR (filename, fileext);
|
|
|
2014 /* luckily, this returns the short version of each element in the path. */
|
|
|
2015 if (qxeGetShortPathName (fileext, shortname,
|
|
|
2016 sizeof (shortname) / XETCHAR_SIZE) == 0)
|
|
|
2017 return Qnil;
|
|
|
2018
|
|
|
2019 TSTR_TO_C_STRING (shortname, shortint);
|
|
|
2020 MSWINDOWS_NORMALIZE_FILENAME (shortint);
|
|
|
2021
|
|
1204
|
2022 return build_intstring (shortint);
|
|
771
|
2023 }
|
|
|
2024
|
|
|
2025
|
|
|
2026 DEFUN ("mswindows-long-file-name", Fmswindows_long_file_name, 1, 1, "", /*
|
|
|
2027 Return the long file name version of the full path of FILENAME.
|
|
|
2028 If FILENAME does not exist, return nil.
|
|
|
2029 All path elements in FILENAME are converted to their long names.
|
|
|
2030 */
|
|
|
2031 (filename))
|
|
|
2032 {
|
|
867
|
2033 Ibyte *longname, *canon;
|
|
771
|
2034 Lisp_Object ret;
|
|
|
2035
|
|
|
2036 CHECK_STRING (filename);
|
|
|
2037
|
|
|
2038 /* first expand it. */
|
|
|
2039 filename = Fexpand_file_name (filename, Qnil);
|
|
|
2040
|
|
|
2041 if (!(longname = mswindows_get_long_filename (XSTRING_DATA (filename))))
|
|
|
2042 return Qnil;
|
|
|
2043
|
|
|
2044 canon = mswindows_canonicalize_filename (longname);
|
|
1204
|
2045 ret = build_intstring (canon);
|
|
1726
|
2046 xfree (canon, Ibyte *);
|
|
|
2047 xfree (longname, Ibyte *);
|
|
771
|
2048 return ret;
|
|
|
2049 }
|
|
|
2050
|
|
814
|
2051
|
|
|
2052 void
|
|
|
2053 init_nt (void)
|
|
|
2054 {
|
|
|
2055 /* Initial preparation for subprocess support: replace our standard
|
|
|
2056 handles with non-inheritable versions.
|
|
|
2057
|
|
|
2058 #### Do we still need this? This is left over from the old process
|
|
|
2059 support. */
|
|
|
2060 {
|
|
|
2061 HANDLE parent;
|
|
|
2062 HANDLE stdin_save = INVALID_HANDLE_VALUE;
|
|
|
2063 HANDLE stdout_save = INVALID_HANDLE_VALUE;
|
|
|
2064 HANDLE stderr_save = INVALID_HANDLE_VALUE;
|
|
|
2065
|
|
|
2066 parent = GetCurrentProcess ();
|
|
|
2067
|
|
|
2068 /* ignore errors when duplicating and closing; typically the
|
|
|
2069 handles will be invalid when running as a gui program. */
|
|
|
2070 DuplicateHandle (parent,
|
|
|
2071 GetStdHandle (STD_INPUT_HANDLE),
|
|
|
2072 parent,
|
|
|
2073 &stdin_save,
|
|
|
2074 0,
|
|
|
2075 FALSE,
|
|
|
2076 DUPLICATE_SAME_ACCESS);
|
|
|
2077
|
|
|
2078 DuplicateHandle (parent,
|
|
|
2079 GetStdHandle (STD_OUTPUT_HANDLE),
|
|
|
2080 parent,
|
|
|
2081 &stdout_save,
|
|
|
2082 0,
|
|
|
2083 FALSE,
|
|
|
2084 DUPLICATE_SAME_ACCESS);
|
|
|
2085
|
|
|
2086 DuplicateHandle (parent,
|
|
|
2087 GetStdHandle (STD_ERROR_HANDLE),
|
|
|
2088 parent,
|
|
|
2089 &stderr_save,
|
|
|
2090 0,
|
|
|
2091 FALSE,
|
|
|
2092 DUPLICATE_SAME_ACCESS);
|
|
|
2093
|
|
|
2094 retry_fclose (stdin);
|
|
|
2095 retry_fclose (stdout);
|
|
|
2096 retry_fclose (stderr);
|
|
|
2097
|
|
|
2098 if (stdin_save != INVALID_HANDLE_VALUE)
|
|
|
2099 _open_osfhandle ((long) stdin_save, O_TEXT);
|
|
|
2100 else
|
|
|
2101 _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY);
|
|
|
2102 _fdopen (0, "r");
|
|
|
2103
|
|
|
2104 if (stdout_save != INVALID_HANDLE_VALUE)
|
|
|
2105 _open_osfhandle ((long) stdout_save, O_TEXT);
|
|
|
2106 else
|
|
|
2107 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
|
2108 _fdopen (1, "w");
|
|
|
2109
|
|
|
2110 if (stderr_save != INVALID_HANDLE_VALUE)
|
|
|
2111 _open_osfhandle ((long) stderr_save, O_TEXT);
|
|
|
2112 else
|
|
|
2113 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
|
2114 _fdopen (2, "w");
|
|
|
2115 }
|
|
|
2116
|
|
|
2117 /* determine which drives are fixed, for get_cached_volume_information */
|
|
|
2118 {
|
|
|
2119 /* GetDriveType must have trailing backslash. */
|
|
867
|
2120 Ibyte drive[] = "A:\\";
|
|
814
|
2121
|
|
|
2122 /* Loop over all possible drive letters */
|
|
|
2123 while (*drive <= 'Z')
|
|
|
2124 {
|
|
|
2125 Extbyte *driveext;
|
|
|
2126
|
|
|
2127 C_STRING_TO_TSTR (drive, driveext);
|
|
|
2128
|
|
|
2129 /* Record if this drive letter refers to a fixed drive. */
|
|
|
2130 fixed_drives[DRIVE_INDEX (*drive)] =
|
|
|
2131 (qxeGetDriveType (driveext) == DRIVE_FIXED);
|
|
|
2132
|
|
|
2133 (*drive)++;
|
|
|
2134 }
|
|
|
2135
|
|
|
2136 /* Reset the volume info cache. */
|
|
|
2137 volume_cache = NULL;
|
|
|
2138 }
|
|
|
2139 }
|
|
|
2140
|
|
771
|
2141 void
|
|
|
2142 syms_of_nt (void)
|
|
|
2143 {
|
|
|
2144 DEFSUBR (Fmswindows_short_file_name);
|
|
|
2145 DEFSUBR (Fmswindows_long_file_name);
|
|
|
2146 }
|
|
|
2147
|
|
440
|
2148 void
|
|
|
2149 vars_of_nt (void)
|
|
|
2150 {
|
|
771
|
2151 DEFVAR_INT ("mswindows-fake-unix-uid", &mswindows_fake_unix_uid /*
|
|
440
|
2152 *Set uid returned by `user-uid' and `user-real-uid'.
|
|
771
|
2153 Under NT and 9x, there are no uids, and even no almighty user called root.
|
|
|
2154 By setting this variable, you can have any uid of choice. Default is 0.
|
|
440
|
2155 Changes to this variable take effect immediately.
|
|
|
2156 */ );
|
|
771
|
2157 mswindows_fake_unix_uid = 0;
|
|
|
2158
|
|
|
2159 DEFVAR_LISP ("mswindows-get-true-file-attributes", &Vmswindows_get_true_file_attributes /*
|
|
|
2160 Non-nil means determine accurate link count in file-attributes.
|
|
|
2161 This option slows down file-attributes noticeably, so is disabled by
|
|
|
2162 default. Note that it is only useful for files on NTFS volumes,
|
|
|
2163 where hard links are supported.
|
|
|
2164 */ );
|
|
|
2165 Vmswindows_get_true_file_attributes = Qnil;
|
|
440
|
2166 }
|
|
|
2167
|
|
428
|
2168 /* end of nt.c */
|
