Mercurial > hg > xemacs-beta
annotate src/nt.c @ 5006:ecdc03ef6e12
Instantiate Ben's compile fix for nt.c
| author | Vin Shelton <acs@xemacs.org> |
|---|---|
| date | Mon, 08 Feb 2010 20:45:21 -0500 |
| parents | 44d7bde26046 |
| children | 3889ef128488 308d34e9f07d |
| rev | line source |
|---|---|
| 771 | 1 /* Utility and Unix shadow routines under MS Windows (WIN32_NATIVE defined). |
| 428 | 2 Copyright (C) 1994, 1995 Free Software Foundation, Inc. |
| 2957 | 3 Copyright (C) 2000, 2001, 2002, 2004, 2005 Ben Wing. |
| 428 | 4 |
| 5 This file is part of XEmacs. | |
| 6 | |
| 7 XEmacs is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 2, or (at your option) any | |
| 10 later version. | |
| 11 | |
| 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with XEmacs; see the file COPYING. If not, write to the Free | |
| 19 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 20 02111-1307, USA. | |
| 21 | |
| 771 | 22 */ |
| 428 | 23 |
| 771 | 24 /* Authorship: |
| 428 | 25 |
| 771 | 26 Geoff Voelker (voelker@cs.washington.edu) 7-29-94 |
| 27 Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> | |
| 28 Sync'ed with Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> | |
| 29 (Note: Sync messages from Marc Paquette may indicate | |
| 30 incomplete synching, so beware.) | |
| 31 Synched (completely!) with Emacs 20.6 by Ben Wing, 6-23-00. | |
| 32 Largely rewritten by Ben Wing for XEmacs Mule support. | |
| 2526 | 33 Synched (completely!) with Emacs 21.0.103 by Ben Wing, 6-13-01. |
| 771 | 34 */ |
| 35 | |
| 36 /* This file Mule-ized by Ben Wing, 6-23-00. */ | |
| 428 | 37 |
| 38 #include <config.h> | |
| 39 #include "lisp.h" | |
| 40 | |
| 592 | 41 #include "buffer.h" |
| 872 | 42 #include "process.h" |
| 592 | 43 |
| 859 | 44 #include "sysdir.h" |
| 45 #include "sysfile.h" | |
| 428 | 46 #include "sysproc.h" |
| 442 | 47 #include "syspwd.h" |
| 859 | 48 #include "syssignal.h" |
| 49 #include "systime.h" | |
| 428 | 50 |
| 442 | 51 #include "syswindows.h" |
| 428 | 52 |
| 771 | 53 /* Control whether stat() attempts to determine file type and link count |
| 54 exactly, at the expense of slower operation. Since true hard links | |
| 55 are supported on NTFS volumes, this is only relevant on NT. */ | |
| 56 Lisp_Object Vmswindows_get_true_file_attributes; | |
| 428 | 57 |
| 771 | 58 /* Vmswindows_generate_fake_inodes; deleted */ |
| 59 | |
| 60 Fixnum mswindows_fake_unix_uid; | |
| 428 | 61 |
| 62 /* Emulate getpwuid, getpwnam and others. */ | |
| 63 | |
| 771 | 64 static struct passwd the_passwd = |
| 428 | 65 { |
| 771 | 66 "", |
| 67 "", | |
| 428 | 68 0, |
| 69 0, | |
| 70 0, | |
| 771 | 71 "", |
| 72 "", | |
| 73 "", | |
| 428 | 74 }; |
| 75 | |
| 76 uid_t | |
| 442 | 77 getuid (void) |
| 440 | 78 { |
| 771 | 79 return mswindows_fake_unix_uid; |
| 428 | 80 } |
| 81 | |
| 82 uid_t | |
| 442 | 83 geteuid (void) |
| 428 | 84 { |
| 771 | 85 /* Emacs 20.6 says: [[I could imagine arguing for checking to see |
| 86 whether the user is in the Administrators group and returning a | |
| 87 UID of 0 for that case, but I don't know how wise that would be | |
| 88 in the long run.]] */ | |
| 89 return mswindows_fake_unix_uid; | |
| 428 | 90 } |
| 91 | |
| 92 gid_t | |
| 442 | 93 getgid (void) |
| 428 | 94 { |
| 95 return the_passwd.pw_gid; | |
| 96 } | |
| 97 | |
| 98 gid_t | |
| 442 | 99 getegid (void) |
| 428 | 100 { |
| 101 return getgid (); | |
| 102 } | |
| 103 | |
| 104 struct passwd * | |
| 105 getpwuid (uid_t uid) | |
| 106 { | |
| 771 | 107 if (uid == mswindows_fake_unix_uid) |
| 440 | 108 { |
| 109 the_passwd.pw_gid = the_passwd.pw_uid = uid; | |
| 110 return &the_passwd; | |
| 111 } | |
| 112 else | |
| 113 return NULL; | |
| 428 | 114 } |
| 115 | |
| 116 struct passwd * | |
| 867 | 117 getpwnam (const Ibyte *name) |
| 428 | 118 { |
| 119 struct passwd *pw; | |
| 120 | |
| 121 pw = getpwuid (getuid ()); | |
| 122 if (!pw) | |
| 123 return pw; | |
| 124 | |
| 1204 | 125 if (qxestrcasecmp_i18n (name, (Ibyte *) pw->pw_name)) |
| 428 | 126 return NULL; |
| 127 | |
| 128 return pw; | |
| 129 } | |
| 130 | |
| 771 | 131 static void |
| 442 | 132 init_user_info (void) |
| 428 | 133 { |
| 440 | 134 /* This code is pretty much of ad hoc nature. There is no unix-like |
| 135 UIDs under Windows NT. There is no concept of root user, because | |
| 136 all security is ACL-based. Instead, let's use a simple variable, | |
| 137 nt-fake-unix-uid, which would allow the user to have a uid of | |
| 138 choice. --kkm, 02/03/2000 */ | |
| 139 #if 0 | |
| 428 | 140 /* Find the user's real name by opening the process token and |
| 141 looking up the name associated with the user-sid in that token. | |
| 142 | |
| 143 Use the relative portion of the identifier authority value from | |
| 144 the user-sid as the user id value (same for group id using the | |
| 145 primary group sid from the process token). */ | |
| 146 | |
| 771 | 147 TOKEN_USER sidinfo; |
| 148 Extbyte name[256], domain[256]; | |
| 149 Charcount length = sizeof (name) / XETCHAR_SIZE; | |
| 150 Charcount dlength = sizeof (domain) / XETCHAR_SIZE; | |
| 151 DWORD trash; | |
| 152 HANDLE token = NULL; | |
| 153 SID_NAME_USE user_type; | |
| 428 | 154 |
| 155 if (OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &token) | |
| 771 | 156 && GetTokenInformation (token, TokenUser, &sidinfo, sizeof (sidinfo), |
| 157 &trash) | |
| 158 && qxeLookupAccountSid (NULL, sidinfo.User.Sid, name, &length, | |
| 159 domain, &dlength, &user_type)) | |
| 428 | 160 { |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
161 the_passwd.pw_name = (CIbyte *) TSTR_TO_ITEXT_MALLOC (name); |
| 428 | 162 /* Determine a reasonable uid value. */ |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
163 if (qxestrcasecmp ((Ibyte *) the_passwd.pw_name, "administrator") == 0) |
| 428 | 164 { |
| 165 the_passwd.pw_uid = 0; | |
| 166 the_passwd.pw_gid = 0; | |
| 167 } | |
| 168 else | |
| 169 { | |
| 170 SID_IDENTIFIER_AUTHORITY * pSIA; | |
| 771 | 171 TOKEN_PRIMARY_GROUP group; |
| 428 | 172 |
| 771 | 173 pSIA = GetSidIdentifierAuthority (sidinfo.User.Sid); |
| 428 | 174 /* I believe the relative portion is the last 4 bytes (of 6) |
| 175 with msb first. */ | |
| 176 the_passwd.pw_uid = ((pSIA->Value[2] << 24) + | |
| 177 (pSIA->Value[3] << 16) + | |
| 178 (pSIA->Value[4] << 8) + | |
| 179 (pSIA->Value[5] << 0)); | |
| 180 /* restrict to conventional uid range for normal users */ | |
| 181 the_passwd.pw_uid = the_passwd.pw_uid % 60001; | |
| 182 | |
| 183 /* Get group id */ | |
| 184 if (GetTokenInformation (token, TokenPrimaryGroup, | |
| 771 | 185 &group, sizeof (group), &trash)) |
| 428 | 186 { |
| 187 SID_IDENTIFIER_AUTHORITY * pSIA; | |
| 188 | |
| 771 | 189 pSIA = GetSidIdentifierAuthority (group.PrimaryGroup); |
| 428 | 190 the_passwd.pw_gid = ((pSIA->Value[2] << 24) + |
| 191 (pSIA->Value[3] << 16) + | |
| 192 (pSIA->Value[4] << 8) + | |
| 193 (pSIA->Value[5] << 0)); | |
| 194 /* I don't know if this is necessary, but for safety... */ | |
| 195 the_passwd.pw_gid = the_passwd.pw_gid % 60001; | |
| 196 } | |
| 197 else | |
| 198 the_passwd.pw_gid = the_passwd.pw_uid; | |
| 199 } | |
| 200 } | |
| 201 /* If security calls are not supported (presumably because we | |
| 202 are running under Windows 95), fallback to this. */ | |
| 771 | 203 else if (qxeGetUserName (name, &length)) |
| 428 | 204 { |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
205 the_passwd.pw_name = (CIbyte *) TSTR_TO_ITEXT_MALLOC (name); |
|
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
206 if (qxestrcasecmp_ascii ((Ibyte *) the_passwd.pw_name, |
|
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
207 "administrator") == 0) |
| 428 | 208 the_passwd.pw_uid = 0; |
| 209 else | |
| 210 the_passwd.pw_uid = 123; | |
| 211 the_passwd.pw_gid = the_passwd.pw_uid; | |
| 212 } | |
| 213 else | |
| 214 { | |
| 771 | 215 the_passwd.pw_name = "unknown"; |
| 428 | 216 the_passwd.pw_uid = 123; |
| 217 the_passwd.pw_gid = 123; | |
| 218 } | |
| 219 | |
| 440 | 220 if (token) |
| 221 CloseHandle (token); | |
| 222 #else | |
| 223 /* Obtain only logon id here, uid part is moved to getuid */ | |
| 771 | 224 DWORD length = UNLEN + 1; |
| 225 Extbyte name[MAX_XETCHAR_SIZE * (UNLEN + 1)]; | |
| 226 if (qxeGetUserName (name, &length)) | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
227 the_passwd.pw_name = (CIbyte *) TSTR_TO_ITEXT_MALLOC (name); |
| 440 | 228 else |
| 771 | 229 the_passwd.pw_name = "unknown"; |
| 440 | 230 #endif |
| 231 | |
| 771 | 232 #if 0 |
| 428 | 233 /* Ensure HOME and SHELL are defined. */ |
| 234 /* | |
| 235 * With XEmacs, setting $HOME is deprecated. | |
| 236 */ | |
| 771 | 237 if (egetenv ("HOME") == NULL) |
| 238 eputenv ("HOME=c:/"); | |
| 428 | 239 #endif |
| 240 | |
| 611 | 241 /* Set dir from environment variables. */ |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
242 the_passwd.pw_dir = (CIbyte *) qxestrdup (get_home_directory ()); |
| 611 | 243 /* We used to set pw_shell here, but the order is wrong (SHELL gets |
| 853 | 244 initted in process.c, called later in the init process) and pw_shell |
| 611 | 245 is not used anywhere. */ |
| 428 | 246 } |
| 247 | |
| 771 | 248 /* Parse the root part of file name, if present. Return length and |
| 867 | 249 optionally store pointer to Ibyte after root. */ |
| 771 | 250 static Bytecount |
| 867 | 251 parse_root (Ibyte *name, Ibyte **pPath) |
| 428 | 252 { |
| 867 | 253 Ibyte *start = name; |
| 428 | 254 |
| 255 if (name == NULL) | |
| 256 return 0; | |
| 257 | |
| 258 /* find the root name of the volume if given */ | |
| 259 if (isalpha (name[0]) && name[1] == ':') | |
| 260 { | |
| 261 /* skip past drive specifier */ | |
| 262 name += 2; | |
| 263 if (IS_DIRECTORY_SEP (name[0])) | |
| 264 name++; | |
| 265 } | |
| 266 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1])) | |
| 267 { | |
| 268 int slashes = 2; | |
| 269 name += 2; | |
| 270 do | |
| 271 { | |
| 272 if (IS_DIRECTORY_SEP (*name) && --slashes == 0) | |
| 273 break; | |
| 274 name++; | |
| 275 } | |
| 771 | 276 while (*name); |
| 428 | 277 if (IS_DIRECTORY_SEP (name[0])) |
| 278 name++; | |
| 279 } | |
| 280 | |
| 281 if (pPath) | |
| 282 *pPath = name; | |
| 283 | |
| 284 return name - start; | |
| 285 } | |
| 286 | |
| 287 /* Get long base name for name; name is assumed to be absolute. */ | |
| 867 | 288 static Ibyte * |
| 289 get_long_basename (Ibyte *name) | |
| 428 | 290 { |
| 771 | 291 WIN32_FIND_DATAW find_data; |
| 428 | 292 HANDLE dir_handle; |
| 771 | 293 Extbyte *nameext; |
| 428 | 294 |
| 771 | 295 /* must be valid filename, no wild cards or other invalid characters */ |
| 296 if (qxestrpbrk (name, "*?|<>\"")) | |
| 297 return 0; | |
| 428 | 298 |
| 2526 | 299 PATHNAME_CONVERT_OUT (name, nameext); |
| 771 | 300 dir_handle = qxeFindFirstFile (nameext, &find_data); |
| 428 | 301 if (dir_handle != INVALID_HANDLE_VALUE) |
| 302 { | |
| 867 | 303 Ibyte *fileint; |
| 771 | 304 |
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parents:
4953
diff
changeset
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305 fileint = TSTR_TO_ITEXT_MALLOC (find_data.cFileName); |
| 428 | 306 FindClose (dir_handle); |
| 771 | 307 return fileint; |
| 428 | 308 } |
| 771 | 309 return 0; |
| 428 | 310 } |
| 311 | |
| 312 /* Get long name for file, if possible (assumed to be absolute). */ | |
| 867 | 313 Ibyte * |
| 314 mswindows_get_long_filename (Ibyte *name) | |
| 428 | 315 { |
| 867 | 316 Ibyte *full = mswindows_canonicalize_filename (name); |
| 317 Ibyte *p; | |
| 318 Ibyte *q; | |
| 771 | 319 DECLARE_EISTRING (o); |
| 320 Bytecount len; | |
| 428 | 321 |
| 322 /* Copy root part verbatim. */ | |
| 323 len = parse_root (full, &p); | |
| 771 | 324 eicpy_raw (o, full, len); |
| 428 | 325 |
| 771 | 326 while (p != NULL && *p) |
| 428 | 327 { |
| 867 | 328 Ibyte *component; |
| 771 | 329 |
| 428 | 330 q = p; |
| 771 | 331 p = qxestrchr (q, '\\'); |
| 428 | 332 if (p) *p = '\0'; |
| 771 | 333 component = get_long_basename (full); |
| 334 if (component) | |
| 428 | 335 { |
| 771 | 336 eicat_rawz (o, component); |
| 428 | 337 if (p != NULL) |
| 338 { | |
| 339 *p++ = '\\'; | |
| 771 | 340 eicat_ch (o, '\\'); |
| 428 | 341 } |
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Rename xfree(FOO, TYPE) -> xfree(FOO)
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diff
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342 xfree (component); |
| 428 | 343 } |
| 344 else | |
| 771 | 345 { |
|
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Rename xfree(FOO, TYPE) -> xfree(FOO)
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parents:
4953
diff
changeset
|
346 xfree (full); |
| 771 | 347 return 0; |
| 348 } | |
| 428 | 349 } |
| 350 | |
|
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16112448d484
Rename xfree(FOO, TYPE) -> xfree(FOO)
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parents:
4953
diff
changeset
|
351 xfree (full); |
| 771 | 352 return eicpyout_malloc (o, 0); |
| 428 | 353 } |
| 354 | |
| 771 | 355 static int |
| 867 | 356 is_unc_volume (const Ibyte *filename) |
| 771 | 357 { |
| 867 | 358 const Ibyte *ptr = filename; |
| 428 | 359 |
| 771 | 360 if (!IS_DIRECTORY_SEP (ptr[0]) || !IS_DIRECTORY_SEP (ptr[1]) || !ptr[2]) |
| 361 return 0; | |
| 362 | |
| 363 if (qxestrpbrk (ptr + 2, "*?|<>\"\\/")) | |
| 364 return 0; | |
| 365 | |
| 366 return 1; | |
| 428 | 367 } |
| 368 | |
| 771 | 369 /* NOTE: Value returned is still in external format. Callers need to |
| 370 convert. */ | |
| 707 | 371 #define REG_ROOT "SOFTWARE\\XEmacs\\XEmacs" |
| 428 | 372 |
| 771 | 373 static LPBYTE |
| 867 | 374 nt_get_resource (Ibyte *key, LPDWORD lpdwtype) |
| 428 | 375 { |
| 376 LPBYTE lpvalue; | |
| 377 HKEY hrootkey = NULL; | |
| 378 DWORD cbData; | |
| 771 | 379 Extbyte *keyext; |
| 380 | |
|
4981
4aebb0131297
Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
381 keyext = ITEXT_TO_TSTR (key); |
| 428 | 382 |
| 383 /* Check both the current user and the local machine to see if | |
| 384 we have any resources. */ | |
| 385 | |
| 771 | 386 if (qxeRegOpenKeyEx (HKEY_CURRENT_USER, XETEXT (REG_ROOT), 0, KEY_READ, |
| 387 &hrootkey) == ERROR_SUCCESS) | |
| 428 | 388 { |
| 389 lpvalue = NULL; | |
| 390 | |
| 771 | 391 if (qxeRegQueryValueEx (hrootkey, keyext, NULL, NULL, NULL, |
| 392 &cbData) == ERROR_SUCCESS | |
| 2367 | 393 && (lpvalue = xnew_array (BYTE, cbData)) != NULL |
| 771 | 394 && qxeRegQueryValueEx (hrootkey, keyext, NULL, lpdwtype, lpvalue, |
| 395 &cbData) == ERROR_SUCCESS) | |
| 396 return (lpvalue); | |
| 428 | 397 |
| 1726 | 398 if (lpvalue) |
|
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Rename xfree(FOO, TYPE) -> xfree(FOO)
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
399 xfree (lpvalue); |
| 428 | 400 |
| 401 RegCloseKey (hrootkey); | |
| 402 } | |
| 403 | |
| 771 | 404 if (qxeRegOpenKeyEx (HKEY_LOCAL_MACHINE, XETEXT (REG_ROOT), 0, KEY_READ, |
| 405 &hrootkey) == ERROR_SUCCESS) | |
| 428 | 406 { |
| 407 lpvalue = NULL; | |
| 408 | |
| 771 | 409 if (qxeRegQueryValueEx (hrootkey, keyext, NULL, NULL, NULL, |
| 410 &cbData) == ERROR_SUCCESS && | |
| 2367 | 411 (lpvalue = xnew_array (BYTE, cbData)) != NULL && |
| 771 | 412 qxeRegQueryValueEx (hrootkey, keyext, NULL, lpdwtype, lpvalue, |
| 413 &cbData) == ERROR_SUCCESS) | |
| 414 return (lpvalue); | |
| 428 | 415 |
| 1726 | 416 if (lpvalue) |
|
4976
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Rename xfree(FOO, TYPE) -> xfree(FOO)
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
417 xfree (lpvalue); |
| 428 | 418 |
| 419 RegCloseKey (hrootkey); | |
| 420 } | |
| 421 | |
| 422 return (NULL); | |
| 423 } | |
| 424 | |
| 425 void | |
| 814 | 426 init_mswindows_environment (void) |
| 428 | 427 { |
| 428 /* Check for environment variables and use registry if they don't exist */ | |
| 771 | 429 /* Emacs 20.6 sets default values for these; not necessary here because |
| 430 we already supply them. (except SHELL, which is set in init_user_info().) | |
| 431 Emacs 20.6 messes with TMPDIR; not necessary here. */ | |
| 428 | 432 { |
| 433 int i; | |
| 434 LPBYTE lpval; | |
| 435 DWORD dwType; | |
| 436 | |
| 2367 | 437 static Ascbyte *env_vars[] = |
| 428 | 438 { |
| 439 "HOME", | |
| 440 "EMACSLOADPATH", | |
| 441 "EMACSDEBUGPATHS", | |
| 442 "SHELL", | |
| 443 "CMDPROXY", | |
| 444 "EMACSDATA", | |
| 445 "EMACSPATH", | |
| 446 "EMACSPACKAGEPATH", | |
| 3179 | 447 "EMACSEARLYPACKAGES", |
| 448 "EMACSLATEPACKAGES", | |
| 449 "EMACSLASTPACKAGES", | |
| 771 | 450 "EMACSLOCKMETHOD", |
| 428 | 451 "INFOPATH" |
| 452 }; | |
| 771 | 453 #if defined (HEAP_IN_DATA) && !defined (PDUMP) |
| 430 | 454 cache_system_info (); |
| 455 #endif | |
| 771 | 456 |
| 457 #if 0 /* FSF 21.1 */ | |
| 458 /* !!#### i think i already do the equivalent elsewhere. | |
| 459 delete when i'm sure i do. | |
| 460 (but maybe i should be playing with LANG when the user changes | |
| 461 the locale, so that subprocesses get it right.) */ | |
| 462 /* Get default locale info and use it for LANG. */ | |
| 463 if (GetLocaleInfo (LOCALE_USER_DEFAULT, | |
| 464 LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP, | |
| 465 locale_name, sizeof (locale_name))) | |
| 466 { | |
| 467 for (i = 0; i < (sizeof (env_vars) / sizeof (env_vars[0])); i++) | |
| 468 { | |
| 469 if (strcmp (env_vars[i].name, "LANG") == 0) | |
| 470 { | |
| 471 env_vars[i].def_value = locale_name; | |
| 472 break; | |
| 473 } | |
| 474 } | |
| 475 } | |
| 476 #endif /* 0 */ | |
| 477 | |
| 428 | 478 for (i = 0; i < countof (env_vars); i++) |
| 479 { | |
| 771 | 480 if (!egetenv (env_vars[i]) && |
| 1204 | 481 (lpval = nt_get_resource ((Ibyte *) env_vars[i], &dwType)) != NULL) |
| 428 | 482 { |
| 483 if (dwType == REG_EXPAND_SZ) | |
| 484 { | |
| 771 | 485 Extbyte *buf = NULL; |
| 867 | 486 Ibyte *envval; |
| 771 | 487 Charcount cch; |
| 428 | 488 |
| 771 | 489 cch = qxeExpandEnvironmentStrings ((Extbyte *) lpval, buf, 0); |
| 2367 | 490 buf = alloca_extbytes (cch * XETCHAR_SIZE); |
| 771 | 491 qxeExpandEnvironmentStrings ((Extbyte *) lpval, buf, cch); |
|
4981
4aebb0131297
Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
492 envval = TSTR_TO_ITEXT (buf); |
| 1204 | 493 eputenv (env_vars[i], (CIbyte *) envval); |
| 428 | 494 } |
| 495 else if (dwType == REG_SZ) | |
| 496 { | |
| 867 | 497 Ibyte *envval; |
| 771 | 498 |
|
4981
4aebb0131297
Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
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499 envval = TSTR_TO_ITEXT (lpval); |
| 1204 | 500 eputenv (env_vars[i], (CIbyte *) envval); |
| 428 | 501 } |
| 502 | |
|
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changeset
|
503 xfree (lpval); |
| 428 | 504 } |
| 505 } | |
| 506 } | |
| 507 | |
| 508 /* Another special case: on NT, the PATH variable is actually named | |
| 509 "Path" although cmd.exe (perhaps NT itself) arranges for | |
| 510 environment variable lookup and setting to be case insensitive. | |
| 511 However, Emacs assumes a fully case sensitive environment, so we | |
| 512 need to change "Path" to "PATH" to match the expectations of | |
| 771 | 513 various elisp packages. |
| 428 | 514 |
| 515 The same applies to COMSPEC. */ | |
| 516 { | |
| 2367 | 517 EXTERNAL_LIST_LOOP_2 (str, Vprocess_environment) |
| 771 | 518 { |
| 519 if (STRINGP (str)) | |
| 520 { | |
| 867 | 521 Ibyte *dat = XSTRING_DATA (str); |
| 2367 | 522 if (qxestrncasecmp_ascii (dat, "PATH=", 5) == 0) |
| 771 | 523 memcpy (dat, "PATH=", 5); |
| 2367 | 524 else if (qxestrncasecmp_ascii (dat, "COMSPEC=", 8) == 0) |
| 771 | 525 memcpy (dat, "COMSPEC=", 8); |
| 526 } | |
| 527 } | |
| 428 | 528 } |
| 529 | |
| 530 init_user_info (); | |
| 531 } | |
| 532 | |
| 771 | 533 /* Emacs 20.6 contains a routine get_emacs_configuration() here to set |
| 534 EMACS_CONFIGURATION. */ | |
| 428 | 535 #ifndef HAVE_X_WINDOWS |
| 536 /* X11R6 on NT provides the single parameter version of this command. */ | |
| 537 | |
| 538 #include <sys/timeb.h> | |
| 539 | |
| 540 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */ | |
| 541 void | |
| 542 gettimeofday (struct timeval *tv, struct timezone *tz) | |
| 543 { | |
| 544 struct _timeb tb; | |
| 545 _ftime (&tb); | |
| 546 | |
| 547 tv->tv_sec = tb.time; | |
| 548 tv->tv_usec = tb.millitm * 1000L; | |
| 549 if (tz) | |
| 550 { | |
| 551 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */ | |
| 552 tz->tz_dsttime = tb.dstflag; /* type of dst correction */ | |
| 553 } | |
| 554 } | |
| 555 | |
| 556 #endif /* HAVE_X_WINDOWS */ | |
| 557 | |
| 771 | 558 |
| 428 | 559 /* ------------------------------------------------------------------------- */ |
| 771 | 560 /* IO support and wrapper functions for Win32 API. */ |
| 428 | 561 /* ------------------------------------------------------------------------- */ |
| 562 | |
| 771 | 563 typedef struct volume_info_data |
| 428 | 564 { |
| 771 | 565 struct volume_info_data *next; |
| 428 | 566 |
| 567 /* time when info was obtained */ | |
| 771 | 568 DWORD timestamp; |
| 428 | 569 |
| 570 /* actual volume info */ | |
| 867 | 571 Ibyte *root_dir; |
| 771 | 572 DWORD serialnum; |
| 573 DWORD maxcomp; | |
| 574 DWORD flags; | |
| 867 | 575 Ibyte *name; |
| 576 Ibyte *type; | |
| 428 | 577 } volume_info_data; |
| 578 | |
| 579 /* Global referenced by various functions. */ | |
| 580 static volume_info_data volume_info; | |
| 581 | |
| 582 /* Vector to indicate which drives are local and fixed (for which cached | |
| 583 data never expires). */ | |
| 584 static BOOL fixed_drives[26]; | |
| 585 | |
| 586 /* Consider cached volume information to be stale if older than 10s, | |
| 587 at least for non-local drives. Info for fixed drives is never stale. */ | |
| 588 #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' ) | |
| 589 #define VOLINFO_STILL_VALID( root_dir, info ) \ | |
| 590 ( ( isalpha (root_dir[0]) && \ | |
| 591 fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \ | |
| 592 || GetTickCount () - info->timestamp < 10000 ) | |
| 593 | |
| 594 /* Cache support functions. */ | |
| 595 | |
| 596 /* Simple linked list with linear search is sufficient. */ | |
| 597 static volume_info_data *volume_cache = NULL; | |
| 598 | |
| 599 static volume_info_data * | |
| 867 | 600 lookup_volume_info (Ibyte *root_dir) |
| 428 | 601 { |
| 771 | 602 volume_info_data *info; |
| 428 | 603 |
| 604 for (info = volume_cache; info; info = info->next) | |
| 771 | 605 if (qxestrcasecmp_i18n (info->root_dir, root_dir) == 0) |
| 428 | 606 break; |
| 607 return info; | |
| 608 } | |
| 609 | |
| 610 static void | |
| 867 | 611 add_volume_info (Ibyte *root_dir, volume_info_data *info) |
| 428 | 612 { |
| 771 | 613 info->root_dir = qxestrdup (root_dir); |
| 428 | 614 info->next = volume_cache; |
| 615 volume_cache = info; | |
| 616 } | |
| 617 | |
| 618 | |
| 619 /* Wrapper for GetVolumeInformation, which uses caching to avoid | |
| 620 performance penalty (~2ms on 486 for local drives, 7.5ms for local | |
| 621 cdrom drive, ~5-10ms or more for remote drives on LAN). */ | |
| 771 | 622 static volume_info_data * |
| 867 | 623 get_cached_volume_information (Ibyte *root_dir) |
| 428 | 624 { |
| 771 | 625 volume_info_data *info; |
| 867 | 626 Ibyte *default_root; |
| 428 | 627 |
| 628 /* NULL for root_dir means use root from current directory. */ | |
| 629 if (root_dir == NULL) | |
| 630 { | |
| 771 | 631 Charcount nchars = qxeGetCurrentDirectory (0, NULL); |
| 632 Extbyte *rootext; | |
| 633 | |
| 634 if (!nchars) | |
| 428 | 635 return NULL; |
| 771 | 636 rootext = alloca_extbytes (nchars * XETCHAR_SIZE); |
| 637 if (!qxeGetCurrentDirectory (nchars, rootext)) | |
| 638 return NULL; | |
|
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639 default_root = TSTR_TO_ITEXT (rootext); |
| 428 | 640 parse_root (default_root, &root_dir); |
| 641 *root_dir = 0; | |
| 642 root_dir = default_root; | |
| 643 } | |
| 644 | |
| 645 /* Local fixed drives can be cached permanently. Removable drives | |
| 646 cannot be cached permanently, since the volume name and serial | |
| 647 number (if nothing else) can change. Remote drives should be | |
| 648 treated as if they are removable, since there is no sure way to | |
| 649 tell whether they are or not. Also, the UNC association of drive | |
| 650 letters mapped to remote volumes can be changed at any time (even | |
| 651 by other processes) without notice. | |
| 652 | |
| 653 As a compromise, so we can benefit from caching info for remote | |
| 654 volumes, we use a simple expiry mechanism to invalidate cache | |
| 655 entries that are more than ten seconds old. */ | |
| 656 | |
| 657 #if 0 | |
| 658 /* No point doing this, because WNetGetConnection is even slower than | |
| 659 GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW, | |
| 660 GetDriveType is about the only call of this type which does not | |
| 661 involve network access, and so is extremely quick). */ | |
| 662 | |
| 663 /* Map drive letter to UNC if remote. */ | |
| 771 | 664 if (isalpha (root_dir[0]) && !fixed [DRIVE_INDEX (root_dir[0])]) |
| 428 | 665 { |
| 771 | 666 Extbyte remote_name[256 * XETCHAR_SIZE]; |
| 867 | 667 Ibyte drive[3] = { root_dir[0], ':' }; |
| 771 | 668 Extbyte *driveext; |
| 428 | 669 |
| 2526 | 670 PATHNAME_CONVERT_OUT (drive, driveext); |
| 771 | 671 if (qxeWNetGetConnection (driveext, remote_name, |
| 672 sizeof (remote_name) / XETCHAR_SIZE) | |
| 428 | 673 == NO_ERROR) |
| 674 /* do something */ ; | |
| 675 } | |
| 676 #endif | |
| 677 | |
| 678 info = lookup_volume_info (root_dir); | |
| 679 | |
| 680 if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info)) | |
| 771 | 681 { |
| 682 Extbyte name[256 * MAX_XETCHAR_SIZE]; | |
| 683 DWORD serialnum; | |
| 684 DWORD maxcomp; | |
| 685 DWORD flags; | |
| 686 Extbyte type[256 * MAX_XETCHAR_SIZE]; | |
| 1204 | 687 Extbyte *rootdirext; |
| 688 | |
| 2526 | 689 PATHNAME_CONVERT_OUT (root_dir, rootdirext); |
| 428 | 690 |
| 771 | 691 /* Info is not cached, or is stale. */ |
| 1204 | 692 if (!qxeGetVolumeInformation (rootdirext, |
| 771 | 693 name, sizeof (name) / XETCHAR_SIZE, |
| 694 &serialnum, | |
| 695 &maxcomp, | |
| 696 &flags, | |
| 697 type, sizeof (type) / XETCHAR_SIZE)) | |
| 698 return NULL; | |
| 428 | 699 |
| 771 | 700 /* Cache the volume information for future use, overwriting existing |
| 701 entry if present. */ | |
| 702 if (info == NULL) | |
| 703 { | |
| 2367 | 704 info = xnew (volume_info_data); |
| 771 | 705 add_volume_info (root_dir, info); |
| 706 } | |
| 707 else | |
| 708 { | |
|
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709 xfree (info->name); |
|
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710 xfree (info->type); |
| 771 | 711 } |
| 428 | 712 |
|
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713 info->name = TSTR_TO_ITEXT_MALLOC (name); |
| 771 | 714 info->serialnum = serialnum; |
| 715 info->maxcomp = maxcomp; | |
| 716 info->flags = flags; | |
|
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717 info->type = TSTR_TO_ITEXT_MALLOC (type); |
| 771 | 718 info->timestamp = GetTickCount (); |
| 719 } | |
| 428 | 720 |
| 721 return info; | |
| 722 } | |
| 723 | |
| 724 /* Get information on the volume where name is held; set path pointer to | |
| 725 start of pathname in name (past UNC header\volume header if present). */ | |
| 771 | 726 static int |
| 867 | 727 get_volume_info (const Ibyte *name, const Ibyte **pPath) |
| 428 | 728 { |
| 771 | 729 /* We probably only need a couple of bytes, but let's be generous in |
| 730 case this function gets changed */ | |
| 2367 | 731 Ibyte *temp = alloca_ibytes (qxestrlen (name) + 10); |
| 867 | 732 Ibyte *rootname = NULL; /* default to current volume */ |
| 771 | 733 volume_info_data *info; |
| 428 | 734 |
| 735 if (name == NULL) | |
| 736 return FALSE; | |
| 737 | |
| 738 /* find the root name of the volume if given */ | |
| 739 if (isalpha (name[0]) && name[1] == ':') | |
| 740 { | |
| 741 rootname = temp; | |
| 742 temp[0] = *name++; | |
| 743 temp[1] = *name++; | |
| 744 temp[2] = '\\'; | |
| 745 temp[3] = 0; | |
| 746 } | |
| 747 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1])) | |
| 748 { | |
| 867 | 749 Ibyte *str = temp; |
| 428 | 750 int slashes = 4; |
| 751 rootname = temp; | |
| 752 do | |
| 753 { | |
| 754 if (IS_DIRECTORY_SEP (*name) && --slashes == 0) | |
| 755 break; | |
| 756 *str++ = *name++; | |
| 757 } | |
| 771 | 758 while (*name); |
| 428 | 759 |
| 760 *str++ = '\\'; | |
| 761 *str = 0; | |
| 762 } | |
| 763 | |
| 764 if (pPath) | |
| 765 *pPath = name; | |
| 766 | |
| 771 | 767 info = get_cached_volume_information (rootname); |
| 428 | 768 if (info != NULL) |
| 769 { | |
| 770 /* Set global referenced by other functions. */ | |
| 771 volume_info = *info; | |
| 772 return TRUE; | |
| 773 } | |
| 774 return FALSE; | |
| 775 } | |
| 776 | |
| 771 | 777 /* XEmacs: Everything referring to map_win32_filename() aka map_w32_filename() |
| 778 removed; it was only for NT 3.1, which we hereby do not support. (NT 3.5 | |
| 779 predates Windows 95!) */ | |
| 428 | 780 |
| 1204 | 781 int |
| 782 mswindows_is_executable (const Ibyte *name) | |
| 771 | 783 { |
| 867 | 784 Ibyte *p = qxestrrchr (name, '.'); |
| 2367 | 785 return (p != NULL && (qxestrcasecmp_ascii (p, ".exe") == 0 || |
| 786 qxestrcasecmp_ascii (p, ".com") == 0 || | |
| 787 qxestrcasecmp_ascii (p, ".bat") == 0 || | |
| 788 qxestrcasecmp_ascii (p, ".cmd") == 0)); | |
| 428 | 789 } |
| 790 | |
| 791 /* Emulate the Unix directory procedures opendir, closedir, | |
| 792 and readdir. We can't use the procedures supplied in sysdep.c, | |
| 793 so we provide them here. */ | |
| 794 | |
| 795 struct direct dir_static; /* simulated directory contents */ | |
| 796 static HANDLE dir_find_handle = INVALID_HANDLE_VALUE; | |
| 771 | 797 /* dir_is_fat deleted */ |
| 867 | 798 static Ibyte *dir_pathname; |
| 771 | 799 static WIN32_FIND_DATAW dir_find_data; |
| 800 | |
| 801 /* Support shares on a network resource as subdirectories of a read-only | |
| 802 root directory. */ | |
| 803 static HANDLE wnet_enum_handle = INVALID_HANDLE_VALUE; | |
| 867 | 804 static HANDLE open_unc_volume (const Ibyte *); |
| 805 static Ibyte *read_unc_volume (HANDLE); | |
| 771 | 806 static int close_unc_volume (HANDLE); |
| 428 | 807 |
| 808 DIR * | |
| 867 | 809 mswindows_opendir (const Ibyte *filename) |
| 428 | 810 { |
| 811 DIR *dirp; | |
| 812 | |
| 813 /* Opening is done by FindFirstFile. However, a read is inherent to | |
| 814 this operation, so we defer the open until read time. */ | |
| 815 | |
| 771 | 816 if (dir_find_handle != INVALID_HANDLE_VALUE) |
| 428 | 817 return NULL; |
| 771 | 818 if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
| 428 | 819 return NULL; |
| 820 | |
| 771 | 821 if (is_unc_volume (filename)) |
| 822 { | |
| 823 wnet_enum_handle = open_unc_volume (filename); | |
| 824 if (wnet_enum_handle == INVALID_HANDLE_VALUE) | |
| 825 return NULL; | |
| 826 } | |
| 428 | 827 |
| 771 | 828 if (!(dirp = xnew_and_zero (DIR))) |
| 829 return NULL; | |
| 830 | |
| 831 if (dir_pathname) | |
|
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diff
changeset
|
832 xfree (dir_pathname); |
| 771 | 833 dir_pathname = qxestrdup (filename); |
| 428 | 834 |
| 835 return dirp; | |
| 836 } | |
| 837 | |
| 442 | 838 int |
| 771 | 839 mswindows_closedir (DIR *dirp) |
| 428 | 840 { |
| 2957 | 841 int retval = -1; |
| 442 | 842 |
| 428 | 843 /* If we have a find-handle open, close it. */ |
| 844 if (dir_find_handle != INVALID_HANDLE_VALUE) | |
| 845 { | |
| 771 | 846 retval = FindClose (dir_find_handle) ? 0 : -1; |
| 428 | 847 dir_find_handle = INVALID_HANDLE_VALUE; |
| 848 } | |
| 771 | 849 else if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
| 850 { | |
| 851 retval = close_unc_volume (wnet_enum_handle); | |
| 852 wnet_enum_handle = INVALID_HANDLE_VALUE; | |
| 853 } | |
|
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diff
changeset
|
854 xfree (dirp); |
| 771 | 855 |
| 856 return retval; | |
| 857 } | |
| 858 | |
| 859 struct direct * | |
| 2286 | 860 mswindows_readdir (DIR *UNUSED (dirp)) |
| 771 | 861 { |
| 867 | 862 Ibyte *val; |
| 771 | 863 int need_to_free = 0; |
| 864 | |
| 865 if (wnet_enum_handle != INVALID_HANDLE_VALUE) | |
| 866 { | |
| 867 if (!(val = read_unc_volume (wnet_enum_handle))) | |
| 868 return NULL; | |
| 869 need_to_free = 1; | |
| 870 } | |
| 871 /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */ | |
| 872 else if (dir_find_handle == INVALID_HANDLE_VALUE) | |
| 873 { | |
| 874 DECLARE_EISTRING (filename); | |
| 867 | 875 Ichar lastch; |
| 2526 | 876 Extbyte *fileext; |
| 771 | 877 |
| 878 eicpy_rawz (filename, dir_pathname); | |
| 879 lastch = eigetch_char (filename, eicharlen (filename) - 1); | |
| 880 if (!IS_DIRECTORY_SEP (lastch)) | |
| 881 eicat_ch (filename, '\\'); | |
| 882 eicat_ch (filename, '*'); | |
| 2526 | 883 PATHNAME_CONVERT_OUT (eidata (filename), fileext); |
| 771 | 884 |
| 2526 | 885 dir_find_handle = qxeFindFirstFile (fileext, &dir_find_data); |
| 771 | 886 |
| 887 if (dir_find_handle == INVALID_HANDLE_VALUE) | |
| 888 return NULL; | |
|
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diff
changeset
|
889 val = TSTR_TO_ITEXT (dir_find_data.cFileName); |
| 771 | 890 } |
| 891 else | |
| 892 { | |
| 893 if (!qxeFindNextFile (dir_find_handle, &dir_find_data)) | |
| 894 return NULL; | |
|
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parents:
4953
diff
changeset
|
895 val = TSTR_TO_ITEXT (dir_find_data.cFileName); |
| 771 | 896 } |
| 897 | |
| 898 /* XEmacs never uses this value, so don't bother making it match | |
| 899 value returned by qxe_stat(). */ | |
| 900 dir_static.d_ino = 1; | |
| 901 | |
| 902 dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 + | |
| 903 dir_static.d_namlen - dir_static.d_namlen % 4; | |
| 904 | |
| 905 { | |
| 906 DECLARE_EISTRING (found); | |
| 907 Bytecount namlen; | |
| 908 | |
| 2526 | 909 if (mswindows_shortcuts_are_symlinks) |
| 910 { | |
| 911 int len = qxestrlen (val); | |
| 912 if (len > 4 && !qxestrcasecmp_ascii (val + len - 4, ".LNK")) | |
| 913 { | |
| 914 /* If we've found a valid link, then chop off the .LNK ending */ | |
| 915 DECLARE_EISTRING (linkname); | |
| 916 Ichar lastch; | |
| 917 Ibyte *resolved; | |
| 918 | |
| 919 /* First check if link is valid */ | |
| 920 PATHNAME_RESOLVE_LINKS (dir_pathname, resolved); | |
| 921 eicpy_rawz (linkname, resolved); | |
| 922 lastch = eigetch_char (linkname, eicharlen (linkname) - 1); | |
| 923 if (!IS_DIRECTORY_SEP (lastch)) | |
| 924 eicat_ch (linkname, '\\'); | |
| 925 eicat_rawz (linkname, val); | |
| 926 resolved = mswindows_read_link (eidata (linkname)); | |
| 927 if (resolved) | |
| 928 { | |
|
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diff
changeset
|
929 xfree (resolved); |
| 2526 | 930 len -= 4; |
| 931 val[len] = '\0'; | |
| 932 } | |
| 933 } | |
| 934 } | |
| 935 | |
| 771 | 936 eicpy_rawz (found, val); |
| 937 if (need_to_free) | |
|
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diff
changeset
|
938 xfree (val); |
| 771 | 939 |
| 940 if (!NILP (Vmswindows_downcase_file_names)) | |
| 941 eilwr (found); | |
| 942 | |
| 943 namlen = min (eilen (found), sizeof (dir_static.d_name) - 1); | |
|
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44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
944 qxestrncpy ((Ibyte *) dir_static.d_name, eidata (found), namlen); |
| 771 | 945 dir_static.d_name[namlen] = '\0'; |
| 946 dir_static.d_namlen = (unsigned short) namlen; | |
| 947 } | |
| 948 | |
| 949 return &dir_static; | |
| 950 } | |
| 951 | |
| 952 static HANDLE | |
| 867 | 953 open_unc_volume (const Ibyte *path) |
| 771 | 954 { |
| 955 NETRESOURCEW nr; | |
| 956 HANDLE henum; | |
| 957 int result; | |
|
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fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
958 Extbyte *extpath; |
| 771 | 959 |
| 960 nr.dwScope = RESOURCE_GLOBALNET; | |
| 961 nr.dwType = RESOURCETYPE_DISK; | |
| 962 nr.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER; | |
| 963 nr.dwUsage = RESOURCEUSAGE_CONTAINER; | |
| 964 nr.lpLocalName = NULL; | |
|
5000
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fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
965 PATHNAME_CONVERT_OUT (path, extpath); |
|
5006
ecdc03ef6e12
Instantiate Ben's compile fix for nt.c
Vin Shelton <acs@xemacs.org>
parents:
5000
diff
changeset
|
966 nr.lpRemoteName = (XELPTSTR) extpath; |
| 771 | 967 nr.lpComment = NULL; |
| 968 nr.lpProvider = NULL; | |
| 969 | |
| 970 result = qxeWNetOpenEnum (RESOURCE_GLOBALNET, RESOURCETYPE_DISK, | |
| 971 RESOURCEUSAGE_CONNECTABLE, &nr, &henum); | |
| 972 | |
| 973 if (result == NO_ERROR) | |
| 974 return henum; | |
| 975 else | |
| 976 return INVALID_HANDLE_VALUE; | |
| 977 } | |
| 978 | |
| 867 | 979 static Ibyte * |
| 2286 | 980 read_unc_volume (HANDLE UNUSED (henum)) |
| 771 | 981 { |
| 1204 | 982 DWORD count; |
| 771 | 983 int result; |
| 984 Extbyte buf[16384]; | |
| 867 | 985 Ibyte *ptr; |
| 1204 | 986 DWORD bufsize = sizeof (buf); |
| 771 | 987 |
| 988 count = 1; | |
| 989 /* #### we should just be querying the size and then allocating the | |
| 990 right amount, like for all similar API's. but the docs say this ?! | |
| 991 | |
| 992 An application cannot set the lpBuffer parameter to NULL and | |
| 993 retrieve the required buffer size from the lpBufferSize | |
| 994 parameter. Instead, the application should allocate a buffer of a | |
| 995 reasonable size -- 16 kilobytes (K) is typical -- and use the value | |
| 996 of lpBufferSize for error detection. | |
| 997 */ | |
| 998 | |
| 999 result = qxeWNetEnumResource (wnet_enum_handle, &count, buf, &bufsize); | |
| 1000 if (result != NO_ERROR) | |
| 1001 return NULL; | |
| 1002 | |
| 1003 /* WNetEnumResource returns \\resource\share...skip forward to "share". */ | |
|
4981
4aebb0131297
Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
1004 ptr = TSTR_TO_ITEXT (((LPNETRESOURCEW) buf)->lpRemoteName); |
| 867 | 1005 INC_IBYTEPTR (ptr); |
| 1006 INC_IBYTEPTR (ptr); | |
| 1007 while (*ptr && !IS_DIRECTORY_SEP (itext_ichar (ptr))) | |
| 1008 INC_IBYTEPTR (ptr); | |
| 1009 INC_IBYTEPTR (ptr); | |
| 771 | 1010 |
| 1011 return qxestrdup (ptr); | |
| 1012 } | |
| 1013 | |
| 1014 static int | |
| 1015 close_unc_volume (HANDLE henum) | |
| 1016 { | |
| 1017 if (henum != INVALID_HANDLE_VALUE) | |
| 1018 return WNetCloseEnum (henum) == NO_ERROR ? 0 : -1; | |
| 442 | 1019 else |
| 1020 return -1; | |
| 428 | 1021 } |
| 1022 | |
| 771 | 1023 static DWORD |
| 867 | 1024 unc_volume_file_attributes (const Ibyte *path) |
| 428 | 1025 { |
| 771 | 1026 HANDLE henum; |
| 1027 DWORD attrs; | |
| 1028 | |
| 1029 henum = open_unc_volume (path); | |
| 1030 if (henum == INVALID_HANDLE_VALUE) | |
| 1031 return -1; | |
| 1032 | |
| 1033 attrs = FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY; | |
| 1034 | |
| 1035 close_unc_volume (henum); | |
| 428 | 1036 |
| 771 | 1037 return attrs; |
| 1038 } | |
| 1039 | |
| 1040 int | |
| 867 | 1041 mswindows_access (const Ibyte *path, int mode) |
| 771 | 1042 { |
| 1043 DWORD attributes; | |
| 428 | 1044 |
| 771 | 1045 /* MSVC implementation doesn't recognize D_OK. */ |
| 1046 if (is_unc_volume (path)) | |
| 1047 { | |
| 1048 attributes = unc_volume_file_attributes (path); | |
| 1049 if (attributes == -1) | |
| 1050 { | |
| 1051 errno = EACCES; | |
| 1052 return -1; | |
| 1053 } | |
| 428 | 1054 } |
| 1055 else | |
| 1056 { | |
| 771 | 1057 Extbyte *pathext; |
| 1058 | |
| 2526 | 1059 PATHNAME_CONVERT_OUT (path, pathext); |
| 771 | 1060 if ((attributes = qxeGetFileAttributes (pathext)) == -1) |
| 1061 { | |
| 1062 /* Should try mapping GetLastError to errno; for now just indicate | |
| 1063 that path doesn't exist. */ | |
| 1064 errno = EACCES; | |
| 1065 return -1; | |
| 1066 } | |
| 428 | 1067 } |
| 1204 | 1068 if ((mode & X_OK) != 0 && !mswindows_is_executable (path)) |
| 771 | 1069 { |
| 1070 errno = EACCES; | |
| 1071 return -1; | |
| 1072 } | |
| 1073 if ((mode & W_OK) != 0 && (attributes & FILE_ATTRIBUTE_READONLY) != 0) | |
| 428 | 1074 { |
| 771 | 1075 errno = EACCES; |
| 1076 return -1; | |
| 428 | 1077 } |
| 771 | 1078 if ((mode & D_OK) != 0 && (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0) |
| 1079 { | |
| 1080 errno = EACCES; | |
| 1081 return -1; | |
| 1082 } | |
| 1083 return 0; | |
| 428 | 1084 } |
| 1085 | |
| 771 | 1086 /* This only works on NTFS volumes, but is useful to have. */ |
| 1087 /* #### NT 5.0 has a function CreateHardLink to do this directly, | |
| 1088 and it may do more things. */ | |
| 428 | 1089 int |
| 2957 | 1090 mswindows_link (const Ibyte *old, const Ibyte *new_) |
| 428 | 1091 { |
| 771 | 1092 HANDLE fileh; |
| 1093 int result = -1; | |
| 1204 | 1094 Extbyte *oldext; |
| 771 | 1095 |
| 2957 | 1096 if (old == NULL || new_ == NULL) |
| 771 | 1097 { |
| 1098 errno = ENOENT; | |
| 1099 return -1; | |
| 1100 } | |
| 1101 | |
| 2526 | 1102 PATHNAME_CONVERT_OUT (old, oldext); |
| 1204 | 1103 fileh = qxeCreateFile (oldext, 0, 0, NULL, OPEN_EXISTING, |
| 771 | 1104 FILE_FLAG_BACKUP_SEMANTICS, NULL); |
| 1105 if (fileh != INVALID_HANDLE_VALUE) | |
| 1106 { | |
| 1107 int wlen; | |
| 1108 WCHAR *newuni; | |
| 1109 | |
| 1110 /* Confusingly, the "alternate" stream name field does not apply | |
| 1111 when restoring a hard link, and instead contains the actual | |
| 1112 stream data for the link (ie. the name of the link to create). | |
| 1113 The WIN32_STREAM_ID structure before the cStreamName field is | |
| 1114 the stream header, which is then immediately followed by the | |
| 1115 stream data. */ | |
| 1116 | |
| 1117 struct | |
| 1118 { | |
| 1119 WIN32_STREAM_ID wid; | |
| 2421 | 1120 WCHAR wbuffer[_MAX_PATH]; /* extra space for link name */ |
| 771 | 1121 } data; |
| 1122 | |
| 2957 | 1123 TO_EXTERNAL_FORMAT (C_STRING, new_, |
| 771 | 1124 ALLOCA, (newuni, wlen), Qmswindows_unicode); |
| 2421 | 1125 if (wlen / sizeof (WCHAR) < _MAX_PATH) |
| 771 | 1126 { |
| 1127 LPVOID context = NULL; | |
| 1128 DWORD wbytes = 0; | |
| 428 | 1129 |
| 771 | 1130 wcscpy (data.wid.cStreamName, newuni); |
| 1131 data.wid.dwStreamId = BACKUP_LINK; | |
| 1132 data.wid.dwStreamAttributes = 0; | |
|
4638
5bbff3553494
mswindows_link had off-by-one error. <1vq2brxz.wl_Ron.Isaacson@morganstanley.com>
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4487
diff
changeset
|
1133 /* Include the trailing null. In bytes, not chars! */ |
|
5bbff3553494
mswindows_link had off-by-one error. <1vq2brxz.wl_Ron.Isaacson@morganstanley.com>
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4487
diff
changeset
|
1134 data.wid.Size.LowPart = wlen + sizeof (WCHAR); |
| 771 | 1135 data.wid.Size.HighPart = 0; |
| 1136 data.wid.dwStreamNameSize = 0; | |
| 1137 | |
| 1138 if (BackupWrite (fileh, (LPBYTE)&data, | |
| 1139 offsetof (WIN32_STREAM_ID, cStreamName) | |
| 1140 + data.wid.Size.LowPart, | |
| 1141 &wbytes, FALSE, FALSE, &context) | |
| 1142 && BackupWrite (fileh, NULL, 0, &wbytes, TRUE, FALSE, &context)) | |
| 1143 { | |
| 1144 /* succeeded */ | |
| 1145 result = 0; | |
| 1146 } | |
| 1147 else | |
| 1148 { | |
| 1149 /* Should try mapping GetLastError to errno; for now just | |
| 1150 indicate a general error (eg. links not supported). */ | |
| 1242 | 1151 errno = EINVAL; /* perhaps EMLINK? */ |
| 771 | 1152 } |
| 1153 } | |
| 1154 | |
| 1155 CloseHandle (fileh); | |
| 1156 } | |
| 1157 else | |
| 1158 errno = ENOENT; | |
| 1159 | |
| 1160 return result; | |
| 1161 } | |
| 1162 | |
| 1163 /* sys_open() merged into sysdep.c sys_open() */ | |
| 1164 | |
| 1165 int | |
| 867 | 1166 mswindows_rename (const Ibyte *oldname, const Ibyte *newname) |
| 771 | 1167 { |
| 1168 int result; | |
| 867 | 1169 Ibyte *temp; |
| 771 | 1170 |
| 1171 /* MoveFile on Windows 95 doesn't correctly change the short file name | |
| 428 | 1172 alias in a number of circumstances (it is not easy to predict when |
| 1173 just by looking at oldname and newname, unfortunately). In these | |
| 1174 cases, renaming through a temporary name avoids the problem. | |
| 1175 | |
| 771 | 1176 A second problem on Windows 95 is that renaming through a temp name when |
| 428 | 1177 newname is uppercase fails (the final long name ends up in |
| 1178 lowercase, although the short alias might be uppercase) UNLESS the | |
| 1179 long temp name is not 8.3. | |
| 1180 | |
| 771 | 1181 So, on Windows 95 we always rename through a temp name, and we make sure |
| 428 | 1182 the temp name has a long extension to ensure correct renaming. */ |
| 1183 | |
| 771 | 1184 /* XEmacs: We sprintf() part of OLDNAME into part of OLDNAME + a number, |
| 1185 so the following calculation should certainly be enough. */ | |
| 428 | 1186 |
| 867 | 1187 temp = qxestrcpy (alloca_ibytes (2 * qxestrlen (oldname) + 100), oldname); |
| 771 | 1188 |
| 1189 if (mswindows_windows9x_p) | |
| 428 | 1190 { |
| 867 | 1191 Ibyte *o; |
| 1192 Ibyte *p; | |
| 771 | 1193 int i = 0; |
| 428 | 1194 |
| 771 | 1195 if (o = qxestrrchr (oldname, '\\')) |
| 1196 o++; | |
| 1197 else | |
| 867 | 1198 o = (Ibyte *) oldname; |
| 771 | 1199 |
| 1200 if (p = qxestrrchr (temp, '\\')) | |
| 428 | 1201 p++; |
| 1202 else | |
| 1203 p = temp; | |
| 771 | 1204 |
| 1205 do | |
| 1206 { | |
| 1207 Extbyte *oldext, *tempext; | |
| 1208 /* Force temp name to require a manufactured 8.3 alias - this | |
| 1209 seems to make the second rename work properly. */ | |
| 1210 qxesprintf (p, "_.%s.%u", o, i); | |
| 1211 i++; | |
| 2526 | 1212 PATHNAME_CONVERT_OUT (oldname, oldext); |
| 1213 PATHNAME_CONVERT_OUT (temp, tempext); | |
| 771 | 1214 result = rename (oldext, tempext); |
| 1215 } | |
| 1216 /* This loop must surely terminate! */ | |
| 1217 while (result < 0 && errno == EEXIST); | |
| 1218 if (result < 0) | |
| 428 | 1219 return -1; |
| 1220 } | |
| 1221 | |
| 771 | 1222 /* Emulate Unix behaviour - newname is deleted if it already exists |
| 428 | 1223 (at least if it is a file; don't do this for directories). |
| 771 | 1224 |
| 1225 Since we mustn't do this if we are just changing the case of the | |
| 1226 file name (we would end up deleting the file we are trying to | |
| 1227 rename!), we let rename detect if the destination file already | |
| 1228 exists - that way we avoid the possible pitfalls of trying to | |
| 1229 determine ourselves whether two names really refer to the same | |
| 1230 file, which is not always possible in the general case. (Consider | |
| 1231 all the permutations of shared or subst'd drives, etc.) */ | |
| 1232 { | |
| 1233 Extbyte *newext, *tempext; | |
| 1234 | |
| 2526 | 1235 PATHNAME_CONVERT_OUT (newname, newext); |
| 1236 PATHNAME_CONVERT_OUT (temp, tempext); | |
| 1237 if (XEUNICODE_P) | |
| 1238 { | |
| 1239 result = _wrename ((const wchar_t *) tempext, | |
| 1240 (const wchar_t *) newext); | |
| 1241 if (result < 0 | |
| 1242 && (errno == EEXIST || errno == EACCES) | |
| 1243 && _wchmod ((const wchar_t *) newext, 0666) == 0 | |
| 1244 && _wunlink ((const wchar_t *) newext) == 0) | |
| 1245 result = _wrename ((const wchar_t *) tempext, | |
| 1246 (const wchar_t *) newext); | |
| 1247 } | |
| 1248 else | |
| 1249 { | |
| 1250 result = rename (tempext, newext); | |
| 1251 if (result < 0 | |
| 1252 && (errno == EEXIST || errno == EACCES) | |
| 1253 && _chmod (newext, 0666) == 0 | |
| 1254 && _unlink (newext) == 0) | |
| 1255 result = rename (tempext, newext); | |
| 1256 } | |
| 771 | 1257 } |
| 1258 | |
| 1259 return result; | |
| 1260 } | |
| 428 | 1261 |
| 771 | 1262 int |
| 867 | 1263 mswindows_unlink (const Ibyte *path) |
| 771 | 1264 { |
| 1265 Extbyte *pathout; | |
| 1266 | |
| 2526 | 1267 PATHNAME_CONVERT_OUT (path, pathout); |
| 771 | 1268 /* On Unix, unlink works without write permission. */ |
| 2526 | 1269 if (XEUNICODE_P) |
| 1270 { | |
| 1271 _wchmod ((const wchar_t *) pathout, 0666); | |
| 1272 return _wunlink ((const wchar_t *) pathout); | |
| 1273 } | |
| 1274 else | |
| 1275 { | |
| 1276 _chmod (pathout, 0666); | |
| 1277 return _unlink (pathout); | |
| 1278 } | |
| 428 | 1279 } |
| 1280 | |
| 1281 static FILETIME utc_base_ft; | |
| 592 | 1282 static long double utc_base; |
| 440 | 1283 static int init = 0; |
| 771 | 1284 static LARGE_INTEGER utc_base_li; |
| 440 | 1285 |
| 771 | 1286 /* XEmacs: We seem to have a new definition of |
| 1287 mswindows_convert_time(), although I'm not sure why. --ben */ | |
| 428 | 1288 |
| 1289 time_t | |
| 771 | 1290 mswindows_convert_time (FILETIME uft) |
| 440 | 1291 { |
| 1292 time_t ret; | |
| 1293 #ifndef MAXLONGLONG | |
| 1294 SYSTEMTIME st; | |
| 1295 struct tm t; | |
| 1296 FILETIME ft; | |
| 1297 TIME_ZONE_INFORMATION tzi; | |
| 1298 DWORD tzid; | |
| 1299 #else | |
| 1300 LARGE_INTEGER lft; | |
| 1301 #endif | |
| 1302 | |
| 1303 if (!init) | |
| 1304 { | |
| 1305 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
| 1306 SYSTEMTIME st; | |
| 1307 | |
| 1308 st.wYear = 1970; | |
| 1309 st.wMonth = 1; | |
| 1310 st.wDay = 1; | |
| 1311 st.wHour = 0; | |
| 1312 st.wMinute = 0; | |
| 1313 st.wSecond = 0; | |
| 1314 st.wMilliseconds = 0; | |
| 1315 | |
| 1316 SystemTimeToFileTime (&st, &utc_base_ft); | |
| 1317 | |
| 1318 utc_base_li.LowPart = utc_base_ft.dwLowDateTime; | |
| 1319 utc_base_li.HighPart = utc_base_ft.dwHighDateTime; | |
| 1320 | |
| 1321 init = 1; | |
| 1322 } | |
| 1323 | |
| 1324 #ifdef MAXLONGLONG | |
| 1325 | |
| 1326 /* On a compiler that supports long integers, do it the easy way */ | |
| 1327 lft.LowPart = uft.dwLowDateTime; | |
| 1328 lft.HighPart = uft.dwHighDateTime; | |
| 1329 ret = (time_t) ((lft.QuadPart - utc_base_li.QuadPart) / 10000000); | |
| 1330 | |
| 1331 #else | |
| 1332 | |
| 1333 /* Do it the hard way using mktime. */ | |
| 1334 FileTimeToLocalFileTime(&uft, &ft); | |
| 1335 FileTimeToSystemTime (&ft, &st); | |
| 1336 tzid = GetTimeZoneInformation (&tzi); | |
| 1337 t.tm_year = st.wYear - 1900; | |
| 1338 t.tm_mon = st.wMonth - 1; | |
| 1339 t.tm_mday = st.wDay; | |
| 1340 t.tm_hour = st.wHour; | |
| 1341 t.tm_min = st.wMinute; | |
| 1342 t.tm_sec = st.wSecond; | |
| 1343 t.tm_isdst = (tzid == TIME_ZONE_ID_DAYLIGHT); | |
| 1344 /* st.wMilliseconds not applicable */ | |
| 1345 ret = mktime(&t); | |
| 1346 if (ret == -1) | |
| 1347 { | |
| 1348 ret = 0; | |
| 1349 } | |
| 1350 | |
| 1351 #endif | |
| 1352 | |
| 1353 return ret; | |
| 1354 } | |
| 428 | 1355 |
| 771 | 1356 static void |
| 428 | 1357 convert_from_time_t (time_t time, FILETIME * pft) |
| 1358 { | |
| 1359 long double tmp; | |
| 1360 | |
| 1361 if (!init) | |
| 1362 { | |
| 1363 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
| 1364 SYSTEMTIME st; | |
| 1365 | |
| 1366 st.wYear = 1970; | |
| 1367 st.wMonth = 1; | |
| 1368 st.wDay = 1; | |
| 1369 st.wHour = 0; | |
| 1370 st.wMinute = 0; | |
| 1371 st.wSecond = 0; | |
| 1372 st.wMilliseconds = 0; | |
| 1373 | |
| 1374 SystemTimeToFileTime (&st, &utc_base_ft); | |
| 1375 utc_base = (long double) utc_base_ft.dwHighDateTime | |
| 1376 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime; | |
| 1377 init = 1; | |
| 1378 } | |
| 1379 | |
| 1380 /* time in 100ns units since 1-Jan-1601 */ | |
| 1381 tmp = (long double) time * 1e7 + utc_base; | |
| 1382 pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024)); | |
| 771 | 1383 pft->dwLowDateTime = (DWORD) (tmp - (4096.0 * 1024 * 1024) * |
| 1384 pft->dwHighDateTime); | |
| 428 | 1385 } |
| 1386 | |
| 1387 #if 0 | |
| 771 | 1388 /* A comment from Emacs 20.6: |
| 1389 | |
| 1390 No reason to keep this; faking inode values either by hashing or even | |
| 428 | 1391 using the file index from GetInformationByHandle, is not perfect and |
| 1392 so by default Emacs doesn't use the inode values on Windows. | |
| 1393 Instead, we now determine file-truename correctly (except for | |
| 1394 possible drive aliasing etc). */ | |
| 1395 | |
| 771 | 1396 /* XEmacs: Removed the fake-inodes code here, which was if 0'd out. |
| 1397 If you want it, look in w32.c in Emacs 20.6. */ | |
| 428 | 1398 #endif |
| 1399 | |
| 442 | 1400 /* #### aichner@ecf.teradyne.com reported that with the library |
| 1401 provided stat/fstat, (file-exist "d:\\tmp\\") =>> nil, | |
| 1402 (file-exist "d:\\tmp") =>> t, when d:\tmp exists. Whenever | |
| 1403 we opt to use non-encapsulated stat(), this should serve as | |
| 1404 a compatibility test. --kkm */ | |
| 440 | 1405 |
| 771 | 1406 /* Provide fstat and utime as well as stat for consistent handling of |
| 1407 file timestamps. */ | |
| 442 | 1408 int |
| 771 | 1409 mswindows_fstat (int desc, struct stat *buf) |
| 432 | 1410 { |
| 448 | 1411 HANDLE fh = (HANDLE) _get_osfhandle (desc); |
| 1412 BY_HANDLE_FILE_INFORMATION info; | |
| 1413 DWORD fake_inode; | |
| 1414 int permission; | |
| 1415 | |
| 1416 switch (GetFileType (fh) & ~FILE_TYPE_REMOTE) | |
| 432 | 1417 { |
| 448 | 1418 case FILE_TYPE_DISK: |
| 1419 buf->st_mode = _S_IFREG; | |
| 1420 if (!GetFileInformationByHandle (fh, &info)) | |
| 1421 { | |
| 1422 errno = EACCES; | |
| 1423 return -1; | |
| 1424 } | |
| 1425 break; | |
| 1426 case FILE_TYPE_PIPE: | |
| 1427 buf->st_mode = _S_IFIFO; | |
| 1428 goto non_disk; | |
| 1429 case FILE_TYPE_CHAR: | |
| 1430 case FILE_TYPE_UNKNOWN: | |
| 1431 default: | |
| 1432 buf->st_mode = _S_IFCHR; | |
| 1433 non_disk: | |
| 1434 memset (&info, 0, sizeof (info)); | |
| 1435 info.dwFileAttributes = 0; | |
| 1436 info.ftCreationTime = utc_base_ft; | |
| 1437 info.ftLastAccessTime = utc_base_ft; | |
| 1438 info.ftLastWriteTime = utc_base_ft; | |
| 1439 } | |
| 1440 | |
| 1441 if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
| 1442 { | |
| 1443 buf->st_mode = _S_IFDIR; | |
| 1444 buf->st_nlink = 2; /* doesn't really matter */ | |
| 1445 fake_inode = 0; /* this doesn't either I think */ | |
| 432 | 1446 } |
| 1447 else | |
| 1448 { | |
| 462 | 1449 buf->st_nlink = (short) info.nNumberOfLinks; |
| 448 | 1450 /* Might as well use file index to fake inode values, but this |
| 1451 is not guaranteed to be unique unless we keep a handle open | |
| 1452 all the time (even then there are situations where it is | |
| 1453 not unique). Reputedly, there are at most 48 bits of info | |
| 1454 (on NTFS, presumably less on FAT). */ | |
| 1455 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh; | |
| 432 | 1456 } |
| 448 | 1457 |
| 1458 /* MSVC defines _ino_t to be short; other libc's might not. */ | |
| 1459 if (sizeof (buf->st_ino) == 2) | |
| 462 | 1460 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16)); |
| 448 | 1461 else |
| 462 | 1462 buf->st_ino = (unsigned short) fake_inode; |
| 448 | 1463 |
| 1464 /* consider files to belong to current user */ | |
| 1465 buf->st_uid = 0; | |
| 1466 buf->st_gid = 0; | |
| 1467 | |
| 1468 buf->st_dev = info.dwVolumeSerialNumber; | |
| 1469 buf->st_rdev = info.dwVolumeSerialNumber; | |
| 1470 | |
| 1471 buf->st_size = info.nFileSizeLow; | |
| 1472 | |
| 1473 /* Convert timestamps to Unix format. */ | |
| 771 | 1474 buf->st_mtime = mswindows_convert_time (info.ftLastWriteTime); |
| 1475 buf->st_atime = mswindows_convert_time (info.ftLastAccessTime); | |
| 448 | 1476 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; |
| 771 | 1477 buf->st_ctime = mswindows_convert_time (info.ftCreationTime); |
| 448 | 1478 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; |
| 1479 | |
| 1480 /* determine rwx permissions */ | |
| 1481 if (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
| 1482 permission = _S_IREAD; | |
| 1483 else | |
| 1484 permission = _S_IREAD | _S_IWRITE; | |
| 1485 | |
| 1486 if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
| 1487 permission |= _S_IEXEC; | |
| 771 | 1488 else |
| 1489 { | |
| 1490 #if 0 /* no way of knowing the filename */ | |
| 1204 | 1491 if (mswindows_is_executable (name)) |
| 771 | 1492 permission |= _S_IEXEC; |
| 1493 #endif | |
| 1494 } | |
| 448 | 1495 |
| 1496 buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
| 1497 | |
| 1498 return 0; | |
| 432 | 1499 } |
| 1500 | |
| 428 | 1501 /* MSVC stat function can't cope with UNC names and has other bugs, so |
| 1502 replace it with our own. This also allows us to calculate consistent | |
| 1503 inode values without hacks in the main Emacs code. */ | |
| 1504 int | |
| 867 | 1505 mswindows_stat (const Ibyte *path, struct stat *buf) |
| 428 | 1506 { |
| 867 | 1507 Ibyte *name, *r; |
| 771 | 1508 WIN32_FIND_DATAW wfd; |
| 428 | 1509 HANDLE fh; |
| 1510 DWORD fake_inode; | |
| 1511 int permission; | |
| 771 | 1512 Bytecount len; |
| 428 | 1513 int rootdir = FALSE; |
| 771 | 1514 Extbyte *nameext; |
| 819 | 1515 int errm; |
| 428 | 1516 |
| 1517 if (path == NULL || buf == NULL) | |
| 1518 { | |
| 1519 errno = EFAULT; | |
| 1520 return -1; | |
| 1521 } | |
| 1522 | |
| 867 | 1523 name = qxestrcpy (alloca_ibytes (qxestrlen (path) + 10), path); |
| 819 | 1524 errm = SetErrorMode (SEM_FAILCRITICALERRORS |
| 1525 | SEM_NOOPENFILEERRORBOX); | |
| 771 | 1526 |
| 1527 get_volume_info (name, &path); | |
| 1528 /* must be valid filename, no wild cards or other invalid characters */ | |
| 1529 if (qxestrpbrk (name, "*?|<>\"")) | |
| 428 | 1530 { |
| 1531 errno = ENOENT; | |
| 1532 return -1; | |
| 1533 } | |
| 1534 | |
| 771 | 1535 /* If name is "c:/.." or "/.." then stat "c:/" or "/". */ |
| 1536 r = IS_DEVICE_SEP (name[1]) ? &name[2] : name; | |
| 1537 if (IS_DIRECTORY_SEP (r[0]) && r[1] == '.' && r[2] == '.' && r[3] == '\0') | |
| 1538 { | |
| 1539 r[1] = r[2] = '\0'; | |
| 1540 } | |
| 1541 | |
| 428 | 1542 /* Remove trailing directory separator, unless name is the root |
| 1543 directory of a drive or UNC volume in which case ensure there | |
| 1544 is a trailing separator. */ | |
| 771 | 1545 len = qxestrlen (name); |
| 428 | 1546 rootdir = (path >= name + len - 1 |
| 1547 && (IS_DIRECTORY_SEP (*path) || *path == 0)); | |
| 771 | 1548 |
| 1549 if (is_unc_volume (name)) | |
| 1550 { | |
| 1551 DWORD attrs = unc_volume_file_attributes (name); | |
| 1552 | |
| 1553 if (attrs == -1) | |
| 1554 return -1; | |
| 428 | 1555 |
| 771 | 1556 memset (&wfd, 0, sizeof (wfd)); |
| 1557 wfd.dwFileAttributes = attrs; | |
| 1558 wfd.ftCreationTime = utc_base_ft; | |
| 1559 wfd.ftLastAccessTime = utc_base_ft; | |
| 1560 wfd.ftLastWriteTime = utc_base_ft; | |
| 1561 /* XEmacs deleted: strcpy (wfd.cFileName, name); | |
| 1562 Not used later on. */ | |
| 1563 } | |
| 1564 else if (rootdir) | |
| 428 | 1565 { |
| 1566 if (!IS_DIRECTORY_SEP (name[len-1])) | |
| 867 | 1567 qxestrcat (name, (Ibyte *) "\\"); |
| 2526 | 1568 /* File has already been resolved and we don't want to do it again |
| 1569 in case of lstat() */ | |
|
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1570 nameext = ITEXT_TO_TSTR (name); |
| 771 | 1571 if (qxeGetDriveType (nameext) < 2) |
| 428 | 1572 { |
| 819 | 1573 SetErrorMode (errm); |
| 428 | 1574 errno = ENOENT; |
| 1575 return -1; | |
| 1576 } | |
| 1577 memset (&wfd, 0, sizeof (wfd)); | |
| 1578 wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY; | |
| 1579 wfd.ftCreationTime = utc_base_ft; | |
| 1580 wfd.ftLastAccessTime = utc_base_ft; | |
| 1581 wfd.ftLastWriteTime = utc_base_ft; | |
| 771 | 1582 /* XEmacs deleted: strcpy (wfd.cFileName, name); |
| 1583 Not used later on. */ | |
| 428 | 1584 } |
| 1585 else | |
| 1586 { | |
| 1587 if (IS_DIRECTORY_SEP (name[len-1])) | |
| 1588 name[len - 1] = 0; | |
| 1589 | |
| 1590 /* (This is hacky, but helps when doing file completions on | |
| 1591 network drives.) Optimize by using information available from | |
| 1592 active readdir if possible. */ | |
| 771 | 1593 if (dir_pathname) |
| 1594 { | |
| 1595 len = qxestrlen (dir_pathname); | |
| 1596 if (len && IS_DIRECTORY_SEP (dir_pathname[len-1])) | |
| 1597 len--; | |
| 1598 } | |
| 1599 if (dir_find_handle != INVALID_HANDLE_VALUE | |
| 1600 && dir_pathname | |
| 801 | 1601 && qxestrncasecmp_i18n (dir_pathname, name, len) == 0 |
| 771 | 1602 && IS_DIRECTORY_SEP (name[len]) |
| 1603 && qxestrcasecmp_i18n (name + len + 1, | |
| 867 | 1604 (Ibyte *) dir_static.d_name) == 0) |
| 428 | 1605 { |
| 1606 /* This was the last entry returned by readdir. */ | |
| 1607 wfd = dir_find_data; | |
| 1608 } | |
| 1609 else | |
| 1610 { | |
|
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1611 nameext = ITEXT_TO_TSTR (name); |
| 771 | 1612 fh = qxeFindFirstFile (nameext, &wfd); |
| 1613 if (fh == INVALID_HANDLE_VALUE) | |
| 1614 { | |
| 819 | 1615 SetErrorMode (errm); |
| 771 | 1616 errno = ENOENT; |
| 1617 return -1; | |
| 1618 } | |
| 1619 FindClose (fh); | |
| 1620 /* XEmacs: Don't need to convert wfd.cFileName because | |
| 1621 not used later on. */ | |
| 428 | 1622 } |
| 1623 } | |
| 1624 | |
| 1625 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
| 1626 { | |
| 1627 buf->st_mode = _S_IFDIR; | |
| 1628 buf->st_nlink = 2; /* doesn't really matter */ | |
| 1629 fake_inode = 0; /* this doesn't either I think */ | |
| 1630 } | |
| 771 | 1631 else |
| 428 | 1632 { |
| 771 | 1633 if (!NILP (Vmswindows_get_true_file_attributes)) |
| 2526 | 1634 /* File has already been resolved and we don't want to do it again |
| 1635 in case of lstat() */ | |
|
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1636 nameext = ITEXT_TO_TSTR (name); |
| 771 | 1637 if (!NILP (Vmswindows_get_true_file_attributes) |
| 1638 /* No access rights required to get info. */ | |
| 1639 && (fh = qxeCreateFile (nameext, 0, 0, NULL, OPEN_EXISTING, 0, NULL)) | |
| 1640 != INVALID_HANDLE_VALUE) | |
| 1641 { | |
| 2526 | 1642 /* This is more accurate in terms of getting the correct number |
| 771 | 1643 of links, but is quite slow (it is noticable when Emacs is |
| 1644 making a list of file name completions). */ | |
| 1645 BY_HANDLE_FILE_INFORMATION info; | |
| 428 | 1646 |
| 771 | 1647 if (GetFileInformationByHandle (fh, &info)) |
| 1648 { | |
| 1649 buf->st_nlink = (short) info.nNumberOfLinks; | |
| 1650 /* Might as well use file index to fake inode values, but this | |
| 1651 is not guaranteed to be unique unless we keep a handle open | |
| 1652 all the time (even then there are situations where it is | |
| 1653 not unique). Reputedly, there are at most 48 bits of info | |
| 1654 (on NTFS, presumably less on FAT). */ | |
| 1655 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh; | |
| 1656 } | |
| 1657 else | |
| 1658 { | |
| 1659 buf->st_nlink = 1; | |
| 1660 fake_inode = 0; | |
| 1661 } | |
| 428 | 1662 |
| 1663 switch (GetFileType (fh)) | |
| 1664 { | |
| 1665 case FILE_TYPE_DISK: | |
| 1666 buf->st_mode = _S_IFREG; | |
| 1667 break; | |
| 1668 case FILE_TYPE_PIPE: | |
| 1669 buf->st_mode = _S_IFIFO; | |
| 1670 break; | |
| 1671 case FILE_TYPE_CHAR: | |
| 1672 case FILE_TYPE_UNKNOWN: | |
| 1673 default: | |
| 1674 buf->st_mode = _S_IFCHR; | |
| 1675 } | |
| 1676 CloseHandle (fh); | |
| 1677 } | |
| 1678 else | |
| 1679 { | |
| 771 | 1680 /* Don't bother to make this information more accurate. */ |
| 1681 buf->st_mode = _S_IFREG; | |
| 1682 buf->st_nlink = 1; | |
| 1683 fake_inode = 0; | |
| 428 | 1684 } |
| 2526 | 1685 |
| 1686 if (mswindows_shortcuts_are_symlinks && | |
| 1687 buf->st_mode == _S_IFREG) | |
| 1688 { | |
| 1689 len = qxestrlen (name); | |
| 1690 if (len > 4 && !qxestrcasecmp_ascii (name + len - 4, ".LNK")) | |
| 1691 { | |
| 1692 /* check if link is valid */ | |
| 1693 Ibyte *resolved = mswindows_read_link (name); | |
| 1694 if (resolved) | |
| 1695 { | |
|
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|
1696 xfree (resolved); |
| 2526 | 1697 buf->st_mode = S_IFLNK; |
| 1698 } | |
| 1699 } | |
| 1700 } | |
| 428 | 1701 } |
| 1702 | |
| 819 | 1703 SetErrorMode (errm); |
| 1704 | |
| 428 | 1705 #if 0 |
| 771 | 1706 /* XEmacs: Removed the fake-inodes code here, which was if 0'd out. |
| 1707 If you want it, look in w32.c in Emacs 20.6. */ | |
| 428 | 1708 #endif |
| 1709 | |
| 771 | 1710 /* MSVC defines _ino_t to be short; other libc's might not. */ |
| 1711 if (sizeof (buf->st_ino) == 2) | |
| 1712 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16)); | |
| 1713 else | |
| 1714 buf->st_ino = (unsigned short) fake_inode; | |
| 428 | 1715 |
| 1716 /* consider files to belong to current user */ | |
| 771 | 1717 buf->st_uid = the_passwd.pw_uid; |
| 1718 buf->st_gid = the_passwd.pw_gid; | |
| 428 | 1719 |
| 771 | 1720 /* volume_info is set by get_volume_info */ |
| 428 | 1721 buf->st_dev = volume_info.serialnum; |
| 1722 buf->st_rdev = volume_info.serialnum; | |
| 1723 | |
| 771 | 1724 |
| 428 | 1725 buf->st_size = wfd.nFileSizeLow; |
| 1726 | |
| 1727 /* Convert timestamps to Unix format. */ | |
| 771 | 1728 buf->st_mtime = mswindows_convert_time (wfd.ftLastWriteTime); |
| 1729 buf->st_atime = mswindows_convert_time (wfd.ftLastAccessTime); | |
| 428 | 1730 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; |
| 771 | 1731 buf->st_ctime = mswindows_convert_time (wfd.ftCreationTime); |
| 428 | 1732 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; |
| 1733 | |
| 1734 /* determine rwx permissions */ | |
| 1735 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
| 1736 permission = _S_IREAD; | |
| 1737 else | |
| 1738 permission = _S_IREAD | _S_IWRITE; | |
| 1739 | |
| 1740 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
| 1741 permission |= _S_IEXEC; | |
| 1204 | 1742 else if (mswindows_is_executable (name)) |
| 771 | 1743 permission |= _S_IEXEC; |
| 428 | 1744 |
| 1745 buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
| 1746 | |
| 1747 return 0; | |
| 1748 } | |
| 1749 | |
| 1750 int | |
| 771 | 1751 mswindows_utime (Lisp_Object path, struct utimbuf *times) |
| 428 | 1752 { |
| 771 | 1753 /* #### Supposedly we're providing this because standard utime() |
| 1754 might not work; or at the very least to get consistent results | |
| 1755 since we replace other time-handling routines in stat. But out | |
| 1756 replacement doesn't seem to work, probably due to some subtle bug | |
| 1757 in this routine, which should be investigated eventually. So for | |
| 1758 the moment, we just use utime(), which conceivably might be | |
| 1759 slightly off in comparison with our own routines? Seems strange, | |
| 1760 and so far no problems seen. --ben */ | |
| 428 | 1761 |
| 771 | 1762 struct utimbuf deftime; |
| 1763 #if 0 | |
| 1764 HANDLE fh; | |
| 1765 #endif | |
| 1766 static FILETIME mtime; | |
| 1767 static FILETIME atime; | |
| 1768 Extbyte *filename; | |
| 428 | 1769 |
| 771 | 1770 if (times == NULL) |
| 428 | 1771 { |
| 771 | 1772 deftime.modtime = deftime.actime = time (NULL); |
| 1773 times = &deftime; | |
| 428 | 1774 } |
| 1775 | |
| 2526 | 1776 LISP_PATHNAME_CONVERT_OUT (path, filename); |
| 771 | 1777 /* APA: SetFileTime fails to set mtime correctly (always 1-Jan-1970) */ |
| 1778 #if 0 | |
| 1779 /* Need write access to set times. */ | |
| 1780 fh = qxeCreateFile (filename, GENERIC_WRITE, | |
| 1781 FILE_SHARE_READ | FILE_SHARE_WRITE, | |
| 1782 0, OPEN_EXISTING, 0, NULL); | |
| 1783 if (fh) | |
| 1784 { | |
| 1785 convert_from_time_t (times->actime, &atime); | |
| 1786 convert_from_time_t (times->modtime, &mtime); | |
| 1787 if (!SetFileTime (fh, NULL, &atime, &mtime)) | |
| 1788 { | |
| 1789 CloseHandle (fh); | |
| 1790 errno = EACCES; | |
| 1791 return -1; | |
| 1792 } | |
| 1793 CloseHandle (fh); | |
| 1794 } | |
| 1795 else | |
| 1796 { | |
| 1797 errno = EINVAL; | |
| 1798 return -1; | |
| 1799 } | |
| 1800 return 0; | |
| 1801 #else | |
| 1802 { | |
| 1803 struct _utimbuf newtimes; | |
| 1804 | |
| 1805 newtimes.actime = times->actime; | |
| 1806 newtimes.modtime = times->modtime; | |
| 1807 | |
| 1808 if (XEUNICODE_P) | |
| 1809 return _wutime ((const wchar_t *) filename, &newtimes); | |
| 1810 else | |
| 1811 return _utime (filename, &newtimes); | |
| 1812 } | |
| 1813 #endif | |
| 1814 } | |
| 1815 | |
| 867 | 1816 Ibyte * |
| 771 | 1817 mswindows_getdcwd (int drivelet) |
| 1818 { | |
| 1819 Extbyte *cwdext; | |
| 867 | 1820 Ibyte *cwd; |
| 4786 | 1821 /* Following comment and two-liner fix comes from |
| 1822 https://bugzilla.mozilla.org/show_bug.cgi?id=419326 which | |
| 1823 apparently fell prey to this feature of msvcrt8 as well. */ | |
| 1824 /* We need to worry about IPH, for details read bug 419326. | |
| 1825 * _getdrives - http://msdn2.microsoft.com/en-us/library/xdhk0xd2.aspx | |
| 1826 * uses a bitmask, bit 0 is 'a:' | |
| 1827 * _chdrive - http://msdn2.microsoft.com/en-us/library/0d1409hb.aspx | |
| 1828 * _getdcwd - http://msdn2.microsoft.com/en-us/library/7t2zk3s4.aspx | |
| 1829 * take an int, 1 is 'a:'. | |
| 1830 * | |
| 1831 * Because of this, we need to do some math. Subtract 1 to convert from | |
| 1832 * _chdrive/_getdcwd format to _getdrives drive numbering. | |
| 1833 * Shift left x bits to convert from integer indexing to bitfield indexing. | |
| 1834 * And of course, we need to find out if the drive is in the bitmask. | |
| 1835 * | |
| 1836 * If we're really unlucky, we can still lose, but only if the user | |
| 1837 * manages to eject the drive between our call to _getdrives() and | |
| 1838 * our *calls* to _wgetdcwd. | |
| 1839 */ | |
| 1840 if (!((1 << (drivelet - 1)) & _getdrives())) | |
| 1841 return NULL; | |
| 771 | 1842 if (XEUNICODE_P) |
| 1843 cwdext = (Extbyte *) _wgetdcwd (drivelet, NULL, 0); | |
| 1844 else | |
| 1845 cwdext = _getdcwd (drivelet, NULL, 0); | |
| 3648 | 1846 if (cwdext == NULL) return NULL; |
|
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diff
changeset
|
1847 cwd = TSTR_TO_ITEXT_MALLOC (cwdext); |
|
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diff
changeset
|
1848 xfree (cwdext); |
| 771 | 1849 return cwd; |
| 428 | 1850 } |
| 1851 | |
| 442 | 1852 |
| 1853 /*--------------------------------------------------------------------*/ | |
| 1854 /* Memory-mapped files */ | |
| 1855 /*--------------------------------------------------------------------*/ | |
| 1856 | |
| 428 | 1857 int |
| 867 | 1858 open_input_file (file_data *p_file, const Ibyte *filename) |
| 428 | 1859 { |
| 442 | 1860 /* Synched with FSF 20.6. We fixed some warnings. */ |
| 428 | 1861 HANDLE file; |
| 1862 HANDLE file_mapping; | |
| 771 | 1863 void *file_base; |
| 428 | 1864 DWORD size, upper_size; |
| 771 | 1865 Extbyte *fileext; |
| 428 | 1866 |
| 2526 | 1867 PATHNAME_CONVERT_OUT (filename, fileext); |
| 771 | 1868 |
| 1869 file = qxeCreateFile (fileext, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 1870 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
| 428 | 1871 if (file == INVALID_HANDLE_VALUE) |
| 1872 return FALSE; | |
| 1873 | |
| 1874 size = GetFileSize (file, &upper_size); | |
| 771 | 1875 file_mapping = qxeCreateFileMapping (file, NULL, PAGE_READONLY, |
| 1876 0, size, NULL); | |
| 428 | 1877 if (!file_mapping) |
| 1878 return FALSE; | |
| 1879 | |
| 1880 file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size); | |
| 1881 if (file_base == 0) | |
| 1882 return FALSE; | |
| 1883 | |
| 771 | 1884 p_file->name = filename; |
| 442 | 1885 p_file->size = size; |
| 1886 p_file->file = file; | |
| 1887 p_file->file_mapping = file_mapping; | |
| 771 | 1888 p_file->file_base = file_base; |
| 442 | 1889 |
| 1890 return TRUE; | |
| 1891 } | |
| 1892 | |
| 1893 int | |
| 867 | 1894 open_output_file (file_data *p_file, const Ibyte *filename, |
| 771 | 1895 unsigned long size) |
| 442 | 1896 { |
| 1897 /* Synched with FSF 20.6. We fixed some warnings. */ | |
| 1898 HANDLE file; | |
| 1899 HANDLE file_mapping; | |
| 771 | 1900 void *file_base; |
| 1901 Extbyte *fileext; | |
| 442 | 1902 |
| 2526 | 1903 PATHNAME_CONVERT_OUT (filename, fileext); |
| 771 | 1904 |
| 1905 file = qxeCreateFile (fileext, GENERIC_READ | GENERIC_WRITE, 0, NULL, | |
| 1906 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); | |
| 442 | 1907 if (file == INVALID_HANDLE_VALUE) |
| 1908 return FALSE; | |
| 1909 | |
| 771 | 1910 file_mapping = qxeCreateFileMapping (file, NULL, PAGE_READWRITE, |
| 1911 0, size, NULL); | |
| 442 | 1912 if (!file_mapping) |
| 1913 return FALSE; | |
| 1914 | |
| 1915 file_base = MapViewOfFile (file_mapping, FILE_MAP_WRITE, 0, 0, size); | |
| 1916 if (file_base == NULL) | |
| 1917 return FALSE; | |
| 1918 | |
| 1919 p_file->name = filename; | |
| 428 | 1920 p_file->size = size; |
| 1921 p_file->file = file; | |
| 1922 p_file->file_mapping = file_mapping; | |
| 771 | 1923 p_file->file_base = file_base; |
| 428 | 1924 |
| 1925 return TRUE; | |
| 1926 } | |
| 1927 | |
| 442 | 1928 #if 1 /* !defined(MINGW) */ |
| 1929 /* Return pointer to section header for section containing the given | |
| 1930 relative virtual address. */ | |
| 1931 static IMAGE_SECTION_HEADER * | |
| 771 | 1932 rva_to_section (DWORD rva, IMAGE_NT_HEADERS *nt_header) |
| 442 | 1933 { |
| 1934 /* Synched with FSF 20.6. We added MINGW stuff. */ | |
| 1935 PIMAGE_SECTION_HEADER section; | |
| 1936 int i; | |
| 1937 | |
| 1938 section = IMAGE_FIRST_SECTION (nt_header); | |
| 1939 | |
| 1940 for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++) | |
| 1941 { | |
| 1942 /* Some linkers (eg. the NT SDK linker I believe) swapped the | |
| 1943 meaning of these two values - or rather, they ignored | |
| 1944 VirtualSize entirely and always set it to zero. This affects | |
| 1945 some very old exes (eg. gzip dated Dec 1993). Since | |
| 1946 mswindows_executable_type relies on this function to work reliably, | |
| 1947 we need to cope with this. */ | |
| 1948 DWORD real_size = max (section->SizeOfRawData, | |
| 1949 section->Misc.VirtualSize); | |
| 1950 if (rva >= section->VirtualAddress | |
| 1951 && rva < section->VirtualAddress + real_size) | |
| 1952 return section; | |
| 1953 section++; | |
| 1954 } | |
| 1955 return NULL; | |
| 1956 } | |
| 1957 #endif | |
| 1958 | |
| 1959 void | |
| 867 | 1960 mswindows_executable_type (const Ibyte *filename, int *is_dos_app, |
| 771 | 1961 int *is_cygnus_app) |
| 442 | 1962 { |
| 1963 /* Synched with FSF 20.6. We added MINGW stuff and casts. */ | |
| 1964 file_data executable; | |
| 867 | 1965 Ibyte *p; |
| 442 | 1966 |
| 1967 /* Default values in case we can't tell for sure. */ | |
| 1968 *is_dos_app = FALSE; | |
| 1969 *is_cygnus_app = FALSE; | |
| 1970 | |
| 1971 if (!open_input_file (&executable, filename)) | |
| 1972 return; | |
| 1973 | |
| 771 | 1974 p = qxestrrchr (filename, '.'); |
| 442 | 1975 |
| 1976 /* We can only identify DOS .com programs from the extension. */ | |
| 2367 | 1977 if (p && qxestrcasecmp_ascii (p, ".com") == 0) |
| 442 | 1978 *is_dos_app = TRUE; |
| 2367 | 1979 else if (p && (qxestrcasecmp_ascii (p, ".bat") == 0 || |
| 1980 qxestrcasecmp_ascii (p, ".cmd") == 0)) | |
| 442 | 1981 { |
| 1982 /* A DOS shell script - it appears that CreateProcess is happy to | |
| 1983 accept this (somewhat surprisingly); presumably it looks at | |
| 1984 COMSPEC to determine what executable to actually invoke. | |
| 1985 Therefore, we have to do the same here as well. */ | |
| 1986 /* Actually, I think it uses the program association for that | |
| 1987 extension, which is defined in the registry. */ | |
| 1988 p = egetenv ("COMSPEC"); | |
| 1989 if (p) | |
| 1990 mswindows_executable_type (p, is_dos_app, is_cygnus_app); | |
| 1991 } | |
| 1992 else | |
| 1993 { | |
| 1994 /* Look for DOS .exe signature - if found, we must also check that | |
| 1995 it isn't really a 16- or 32-bit Windows exe, since both formats | |
| 1996 start with a DOS program stub. Note that 16-bit Windows | |
| 1997 executables use the OS/2 1.x format. */ | |
| 1998 | |
| 1999 #if 0 /* defined( MINGW ) */ | |
| 771 | 2000 /* mingw doesn't have enough headers to detect cygwin |
| 442 | 2001 apps, just do what we can. */ |
| 771 | 2002 FILHDR *exe_header; |
| 442 | 2003 |
| 771 | 2004 exe_header = (FILHDR *) executable.file_base; |
| 442 | 2005 if (exe_header->e_magic != DOSMAGIC) |
| 2006 goto unwind; | |
| 2007 | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
2008 if ((Rawbyte *) exe_header->e_lfanew > (Rawbyte *) executable.size) |
| 442 | 2009 { |
| 2010 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */ | |
| 2011 *is_dos_app = TRUE; | |
| 2012 } | |
| 2013 else if (exe_header->nt_signature != NT_SIGNATURE) | |
| 2014 { | |
| 2015 *is_dos_app = TRUE; | |
| 2016 } | |
| 2017 #else | |
| 771 | 2018 IMAGE_DOS_HEADER *dos_header; |
| 2019 IMAGE_NT_HEADERS *nt_header; | |
| 442 | 2020 |
| 2021 dos_header = (PIMAGE_DOS_HEADER) executable.file_base; | |
| 2022 if (dos_header->e_magic != IMAGE_DOS_SIGNATURE) | |
| 2023 goto unwind; | |
| 2024 | |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
2025 nt_header = (PIMAGE_NT_HEADERS) ((Rawbyte *) dos_header + |
| 771 | 2026 dos_header->e_lfanew); |
| 442 | 2027 |
|
5000
44d7bde26046
fix compile errors, fix revert-buffer bug on binary/Latin 1 files, Mule-ize some files
Ben Wing <ben@xemacs.org>
parents:
4982
diff
changeset
|
2028 if ((Rawbyte *) nt_header > (Rawbyte *) dos_header + executable.size) |
| 442 | 2029 { |
| 2030 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */ | |
| 2031 *is_dos_app = TRUE; | |
| 2032 } | |
| 2033 else if (nt_header->Signature != IMAGE_NT_SIGNATURE && | |
| 2034 LOWORD (nt_header->Signature) != IMAGE_OS2_SIGNATURE) | |
| 2035 { | |
| 2036 *is_dos_app = TRUE; | |
| 2037 } | |
| 2038 else if (nt_header->Signature == IMAGE_NT_SIGNATURE) | |
| 2039 { | |
| 2040 /* Look for cygwin.dll in DLL import list. */ | |
| 2041 IMAGE_DATA_DIRECTORY import_dir = | |
| 771 | 2042 nt_header->OptionalHeader. |
| 2043 DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT]; | |
| 2044 IMAGE_IMPORT_DESCRIPTOR *imports; | |
| 2045 IMAGE_SECTION_HEADER *section; | |
| 442 | 2046 |
| 2047 section = rva_to_section (import_dir.VirtualAddress, nt_header); | |
| 771 | 2048 imports = |
| 2049 (IMAGE_IMPORT_DESCRIPTOR *) RVA_TO_PTR (import_dir.VirtualAddress, | |
| 2050 section, executable); | |
| 2051 | |
| 442 | 2052 for ( ; imports->Name; imports++) |
| 2053 { | |
| 771 | 2054 Extbyte *dllname_ext = |
| 2055 (Extbyte *) RVA_TO_PTR (imports->Name, section, executable); | |
| 867 | 2056 Ibyte *dllname; |
| 771 | 2057 |
|
4981
4aebb0131297
Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
2058 dllname = EXTERNAL_TO_ITEXT (dllname_ext, Qbinary); |
| 442 | 2059 |
| 2060 /* The exact name of the cygwin dll has changed with | |
| 2061 various releases, but hopefully this will be reasonably | |
| 2062 future proof. */ | |
| 867 | 2063 if (qxestrncasecmp (dllname, (Ibyte *) "cygwin", 6) == 0) |
| 442 | 2064 { |
| 2065 *is_cygnus_app = TRUE; | |
| 2066 break; | |
| 2067 } | |
| 2068 } | |
| 2069 } | |
| 2070 #endif | |
| 2071 } | |
| 2072 | |
| 2073 unwind: | |
| 2074 close_file_data (&executable); | |
| 2075 } | |
| 2076 | |
| 428 | 2077 /* Close the system structures associated with the given file. */ |
| 2078 void | |
| 2079 close_file_data (file_data *p_file) | |
| 2080 { | |
| 611 | 2081 UnmapViewOfFile (p_file->file_base); |
| 2082 CloseHandle (p_file->file_mapping); | |
| 2083 CloseHandle (p_file->file); | |
| 428 | 2084 } |
| 2085 | |
| 771 | 2086 |
| 2087 /* Some miscellaneous functions that are Windows specific, but not GUI | |
| 2088 specific (ie. are applicable in terminal or batch mode as well). */ | |
| 2089 | |
|
4487
866b84b7c97e
Remove interactive specs from #'mswindows-{short,long}-file-name,
Aidan Kehoe <kehoea@parhasard.net>
parents:
3648
diff
changeset
|
2090 DEFUN ("mswindows-short-file-name", Fmswindows_short_file_name, 1, 1, 0, /* |
| 771 | 2091 Return the short file name version (8.3) of the full path of FILENAME. |
| 2092 If FILENAME does not exist, return nil. | |
| 2093 All path elements in FILENAME are converted to their short names. | |
| 2094 */ | |
| 2095 (filename)) | |
| 2096 { | |
| 4854 | 2097 Extbyte shortname[PATH_MAX_TCHAR]; |
| 771 | 2098 Extbyte *fileext; |
| 867 | 2099 Ibyte *shortint; |
| 771 | 2100 |
| 2101 CHECK_STRING (filename); | |
| 2102 | |
| 2103 /* first expand it. */ | |
| 2104 filename = Fexpand_file_name (filename, Qnil); | |
| 2105 | |
| 2526 | 2106 LISP_PATHNAME_CONVERT_OUT (filename, fileext); |
| 771 | 2107 /* luckily, this returns the short version of each element in the path. */ |
| 2108 if (qxeGetShortPathName (fileext, shortname, | |
| 2109 sizeof (shortname) / XETCHAR_SIZE) == 0) | |
| 2110 return Qnil; | |
| 2111 | |
|
4981
4aebb0131297
Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
2112 shortint = TSTR_TO_ITEXT (shortname); |
| 771 | 2113 MSWINDOWS_NORMALIZE_FILENAME (shortint); |
| 2114 | |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
4854
diff
changeset
|
2115 return build_istring (shortint); |
| 771 | 2116 } |
| 2117 | |
| 2118 | |
|
4487
866b84b7c97e
Remove interactive specs from #'mswindows-{short,long}-file-name,
Aidan Kehoe <kehoea@parhasard.net>
parents:
3648
diff
changeset
|
2119 DEFUN ("mswindows-long-file-name", Fmswindows_long_file_name, 1, 1, 0, /* |
| 771 | 2120 Return the long file name version of the full path of FILENAME. |
| 2121 If FILENAME does not exist, return nil. | |
| 2122 All path elements in FILENAME are converted to their long names. | |
| 2123 */ | |
| 2124 (filename)) | |
| 2125 { | |
| 867 | 2126 Ibyte *longname, *canon; |
| 771 | 2127 Lisp_Object ret; |
| 2128 | |
| 2129 CHECK_STRING (filename); | |
| 2130 | |
| 2131 /* first expand it. */ | |
| 2132 filename = Fexpand_file_name (filename, Qnil); | |
| 2133 | |
| 2134 if (!(longname = mswindows_get_long_filename (XSTRING_DATA (filename)))) | |
| 2135 return Qnil; | |
| 2136 | |
| 2137 canon = mswindows_canonicalize_filename (longname); | |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
4854
diff
changeset
|
2138 ret = build_istring (canon); |
|
4976
16112448d484
Rename xfree(FOO, TYPE) -> xfree(FOO)
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
2139 xfree (canon); |
|
16112448d484
Rename xfree(FOO, TYPE) -> xfree(FOO)
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
2140 xfree (longname); |
| 771 | 2141 return ret; |
| 2142 } | |
| 2143 | |
| 814 | 2144 |
| 2145 void | |
| 2146 init_nt (void) | |
| 2147 { | |
| 2148 /* Initial preparation for subprocess support: replace our standard | |
| 2149 handles with non-inheritable versions. | |
| 2150 | |
| 2151 #### Do we still need this? This is left over from the old process | |
| 2152 support. */ | |
| 2153 { | |
| 2154 HANDLE parent; | |
| 2155 HANDLE stdin_save = INVALID_HANDLE_VALUE; | |
| 2156 HANDLE stdout_save = INVALID_HANDLE_VALUE; | |
| 2157 HANDLE stderr_save = INVALID_HANDLE_VALUE; | |
| 2158 | |
| 2159 parent = GetCurrentProcess (); | |
| 2160 | |
| 2161 /* ignore errors when duplicating and closing; typically the | |
| 2162 handles will be invalid when running as a gui program. */ | |
| 2163 DuplicateHandle (parent, | |
| 2164 GetStdHandle (STD_INPUT_HANDLE), | |
| 2165 parent, | |
| 2166 &stdin_save, | |
| 2167 0, | |
| 2168 FALSE, | |
| 2169 DUPLICATE_SAME_ACCESS); | |
| 2170 | |
| 2171 DuplicateHandle (parent, | |
| 2172 GetStdHandle (STD_OUTPUT_HANDLE), | |
| 2173 parent, | |
| 2174 &stdout_save, | |
| 2175 0, | |
| 2176 FALSE, | |
| 2177 DUPLICATE_SAME_ACCESS); | |
| 2178 | |
| 2179 DuplicateHandle (parent, | |
| 2180 GetStdHandle (STD_ERROR_HANDLE), | |
| 2181 parent, | |
| 2182 &stderr_save, | |
| 2183 0, | |
| 2184 FALSE, | |
| 2185 DUPLICATE_SAME_ACCESS); | |
| 2186 | |
| 2187 retry_fclose (stdin); | |
| 2188 retry_fclose (stdout); | |
| 2189 retry_fclose (stderr); | |
| 2190 | |
| 2191 if (stdin_save != INVALID_HANDLE_VALUE) | |
| 2192 _open_osfhandle ((long) stdin_save, O_TEXT); | |
| 2193 else | |
| 2194 _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY); | |
| 2195 _fdopen (0, "r"); | |
| 2196 | |
| 2197 if (stdout_save != INVALID_HANDLE_VALUE) | |
| 2198 _open_osfhandle ((long) stdout_save, O_TEXT); | |
| 2199 else | |
| 2200 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY); | |
| 2201 _fdopen (1, "w"); | |
| 2202 | |
| 2203 if (stderr_save != INVALID_HANDLE_VALUE) | |
| 2204 _open_osfhandle ((long) stderr_save, O_TEXT); | |
| 2205 else | |
| 2206 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY); | |
| 2207 _fdopen (2, "w"); | |
| 2208 } | |
| 2209 | |
| 2210 /* determine which drives are fixed, for get_cached_volume_information */ | |
| 2211 { | |
| 2212 /* GetDriveType must have trailing backslash. */ | |
| 867 | 2213 Ibyte drive[] = "A:\\"; |
| 814 | 2214 |
| 2215 /* Loop over all possible drive letters */ | |
| 2216 while (*drive <= 'Z') | |
| 2217 { | |
| 2218 Extbyte *driveext; | |
| 2219 | |
| 2526 | 2220 PATHNAME_CONVERT_OUT (drive, driveext); |
| 814 | 2221 |
| 2222 /* Record if this drive letter refers to a fixed drive. */ | |
| 2223 fixed_drives[DRIVE_INDEX (*drive)] = | |
| 2224 (qxeGetDriveType (driveext) == DRIVE_FIXED); | |
| 2225 | |
| 2226 (*drive)++; | |
| 2227 } | |
| 2228 | |
| 2229 /* Reset the volume info cache. */ | |
| 2230 volume_cache = NULL; | |
| 2231 } | |
| 2232 } | |
| 2233 | |
| 771 | 2234 void |
| 2235 syms_of_nt (void) | |
| 2236 { | |
| 2237 DEFSUBR (Fmswindows_short_file_name); | |
| 2238 DEFSUBR (Fmswindows_long_file_name); | |
| 2239 } | |
| 2240 | |
| 440 | 2241 void |
| 2242 vars_of_nt (void) | |
| 2243 { | |
| 771 | 2244 DEFVAR_INT ("mswindows-fake-unix-uid", &mswindows_fake_unix_uid /* |
| 440 | 2245 *Set uid returned by `user-uid' and `user-real-uid'. |
| 771 | 2246 Under NT and 9x, there are no uids, and even no almighty user called root. |
| 2247 By setting this variable, you can have any uid of choice. Default is 0. | |
| 440 | 2248 Changes to this variable take effect immediately. |
| 2249 */ ); | |
| 771 | 2250 mswindows_fake_unix_uid = 0; |
| 2251 | |
| 2252 DEFVAR_LISP ("mswindows-get-true-file-attributes", &Vmswindows_get_true_file_attributes /* | |
| 2253 Non-nil means determine accurate link count in file-attributes. | |
| 2254 This option slows down file-attributes noticeably, so is disabled by | |
| 2255 default. Note that it is only useful for files on NTFS volumes, | |
| 2256 where hard links are supported. | |
| 2257 */ ); | |
| 2258 Vmswindows_get_true_file_attributes = Qnil; | |
| 440 | 2259 } |
| 2260 | |
| 428 | 2261 /* end of nt.c */ |