Commit | Line | Data |
---|---|---|
e9e23e23 | 1 | /* Utility and Unix shadow routines for GNU Emacs on the Microsoft W32 API. |
0b5538bd | 2 | Copyright (C) 1994, 1995, 2000, 2001, 2002, 2003, 2004, |
8cabe764 | 3 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
95ed0025 | 4 | |
3b7ad313 EN |
5 | This file is part of GNU Emacs. |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
684d6f5b | 9 | the Free Software Foundation; either version 3, or (at your option) |
3b7ad313 EN |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. | |
95ed0025 RS |
21 | |
22 | Geoff Voelker (voelker@cs.washington.edu) 7-29-94 | |
23 | */ | |
76b3903d | 24 | #include <stddef.h> /* for offsetof */ |
95ed0025 RS |
25 | #include <stdlib.h> |
26 | #include <stdio.h> | |
27 | #include <io.h> | |
480b0c5b | 28 | #include <errno.h> |
95ed0025 RS |
29 | #include <fcntl.h> |
30 | #include <ctype.h> | |
480b0c5b | 31 | #include <signal.h> |
b3308d2e | 32 | #include <sys/file.h> |
480b0c5b | 33 | #include <sys/time.h> |
16bb7578 | 34 | #include <sys/utime.h> |
22189f79 | 35 | #include <mbstring.h> /* for _mbspbrk */ |
480b0c5b GV |
36 | |
37 | /* must include CRT headers *before* config.h */ | |
4838e624 PJ |
38 | |
39 | #ifdef HAVE_CONFIG_H | |
40 | #include <config.h> | |
41 | #endif | |
42 | ||
480b0c5b GV |
43 | #undef access |
44 | #undef chdir | |
45 | #undef chmod | |
46 | #undef creat | |
47 | #undef ctime | |
48 | #undef fopen | |
49 | #undef link | |
50 | #undef mkdir | |
51 | #undef mktemp | |
52 | #undef open | |
53 | #undef rename | |
54 | #undef rmdir | |
55 | #undef unlink | |
56 | ||
57 | #undef close | |
58 | #undef dup | |
59 | #undef dup2 | |
60 | #undef pipe | |
61 | #undef read | |
62 | #undef write | |
95ed0025 | 63 | |
d8fcc1b9 AI |
64 | #undef strerror |
65 | ||
95ed0025 | 66 | #include "lisp.h" |
95ed0025 RS |
67 | |
68 | #include <pwd.h> | |
3d19b645 | 69 | #include <grp.h> |
95ed0025 | 70 | |
971bce75 AI |
71 | #ifdef __GNUC__ |
72 | #define _ANONYMOUS_UNION | |
73 | #define _ANONYMOUS_STRUCT | |
74 | #endif | |
480b0c5b | 75 | #include <windows.h> |
634d3003 | 76 | #include <lmcons.h> |
2d5324c5 | 77 | #include <shlobj.h> |
00b3b7b3 | 78 | |
480b0c5b GV |
79 | #ifdef HAVE_SOCKETS /* TCP connection support, if kernel can do it */ |
80 | #include <sys/socket.h> | |
81 | #undef socket | |
82 | #undef bind | |
83 | #undef connect | |
84 | #undef htons | |
85 | #undef ntohs | |
86 | #undef inet_addr | |
87 | #undef gethostname | |
88 | #undef gethostbyname | |
89 | #undef getservbyname | |
ecd270eb | 90 | #undef getpeername |
380961a6 | 91 | #undef shutdown |
962955c5 JR |
92 | #undef setsockopt |
93 | #undef listen | |
94 | #undef getsockname | |
95 | #undef accept | |
96 | #undef recvfrom | |
97 | #undef sendto | |
480b0c5b | 98 | #endif |
00b3b7b3 | 99 | |
489f9371 | 100 | #include "w32.h" |
480b0c5b | 101 | #include "ndir.h" |
489f9371 | 102 | #include "w32heap.h" |
253574a6 JR |
103 | #include "systime.h" |
104 | ||
2d5324c5 JR |
105 | typedef HRESULT (WINAPI * ShGetFolderPath_fn) |
106 | (IN HWND, IN int, IN HANDLE, IN DWORD, OUT char *); | |
107 | ||
9785d95b BK |
108 | void globals_of_w32 (); |
109 | ||
76b3903d GV |
110 | extern Lisp_Object Vw32_downcase_file_names; |
111 | extern Lisp_Object Vw32_generate_fake_inodes; | |
112 | extern Lisp_Object Vw32_get_true_file_attributes; | |
ac0af113 JR |
113 | /* Defined in process.c for its own purpose. */ |
114 | extern Lisp_Object Qlocal; | |
115 | ||
e0c181dd | 116 | extern int w32_num_mouse_buttons; |
76b3903d | 117 | |
18e070ac | 118 | \f |
9d95a291 EZ |
119 | /* Initialization states. |
120 | ||
121 | WARNING: If you add any more such variables for additional APIs, | |
122 | you MUST add initialization for them to globals_of_w32 | |
123 | below. This is because these variables might get set | |
124 | to non-NULL values during dumping, but the dumped Emacs | |
125 | cannot reuse those values, because it could be run on a | |
126 | different version of the OS, where API addresses are | |
127 | different. */ | |
9785d95b BK |
128 | static BOOL g_b_init_is_windows_9x; |
129 | static BOOL g_b_init_open_process_token; | |
130 | static BOOL g_b_init_get_token_information; | |
131 | static BOOL g_b_init_lookup_account_sid; | |
132 | static BOOL g_b_init_get_sid_identifier_authority; | |
c617afce EZ |
133 | static BOOL g_b_init_get_sid_sub_authority; |
134 | static BOOL g_b_init_get_sid_sub_authority_count; | |
9785d95b | 135 | |
f60ae425 BK |
136 | /* |
137 | BEGIN: Wrapper functions around OpenProcessToken | |
138 | and other functions in advapi32.dll that are only | |
139 | supported in Windows NT / 2k / XP | |
140 | */ | |
141 | /* ** Function pointer typedefs ** */ | |
142 | typedef BOOL (WINAPI * OpenProcessToken_Proc) ( | |
143 | HANDLE ProcessHandle, | |
144 | DWORD DesiredAccess, | |
145 | PHANDLE TokenHandle); | |
146 | typedef BOOL (WINAPI * GetTokenInformation_Proc) ( | |
147 | HANDLE TokenHandle, | |
148 | TOKEN_INFORMATION_CLASS TokenInformationClass, | |
149 | LPVOID TokenInformation, | |
150 | DWORD TokenInformationLength, | |
151 | PDWORD ReturnLength); | |
74258518 JR |
152 | typedef BOOL (WINAPI * GetProcessTimes_Proc) ( |
153 | HANDLE process_handle, | |
154 | LPFILETIME creation_time, | |
155 | LPFILETIME exit_time, | |
156 | LPFILETIME kernel_time, | |
157 | LPFILETIME user_time); | |
158 | ||
159 | GetProcessTimes_Proc get_process_times_fn = NULL; | |
160 | ||
f60ae425 BK |
161 | #ifdef _UNICODE |
162 | const char * const LookupAccountSid_Name = "LookupAccountSidW"; | |
163 | #else | |
164 | const char * const LookupAccountSid_Name = "LookupAccountSidA"; | |
165 | #endif | |
166 | typedef BOOL (WINAPI * LookupAccountSid_Proc) ( | |
167 | LPCTSTR lpSystemName, | |
168 | PSID Sid, | |
169 | LPTSTR Name, | |
170 | LPDWORD cbName, | |
171 | LPTSTR DomainName, | |
172 | LPDWORD cbDomainName, | |
173 | PSID_NAME_USE peUse); | |
174 | typedef PSID_IDENTIFIER_AUTHORITY (WINAPI * GetSidIdentifierAuthority_Proc) ( | |
175 | PSID pSid); | |
c617afce EZ |
176 | typedef PDWORD (WINAPI * GetSidSubAuthority_Proc) ( |
177 | PSID pSid, | |
178 | DWORD n); | |
179 | typedef PUCHAR (WINAPI * GetSidSubAuthorityCount_Proc) ( | |
180 | PSID pSid); | |
181 | ||
f60ae425 BK |
182 | |
183 | /* ** A utility function ** */ | |
9bfb11f9 KS |
184 | static BOOL |
185 | is_windows_9x () | |
f60ae425 | 186 | { |
9785d95b | 187 | static BOOL s_b_ret=0; |
f60ae425 | 188 | OSVERSIONINFO os_ver; |
9785d95b | 189 | if (g_b_init_is_windows_9x == 0) |
f60ae425 | 190 | { |
9785d95b BK |
191 | g_b_init_is_windows_9x = 1; |
192 | ZeroMemory(&os_ver, sizeof(OSVERSIONINFO)); | |
193 | os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); | |
194 | if (GetVersionEx (&os_ver)) | |
195 | { | |
196 | s_b_ret = (os_ver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS); | |
197 | } | |
f60ae425 | 198 | } |
9785d95b | 199 | return s_b_ret; |
f60ae425 BK |
200 | } |
201 | ||
74258518 JR |
202 | /* Get total user and system times for get-internal-run-time. |
203 | Returns a list of three integers if the times are provided by the OS | |
204 | (NT derivatives), otherwise it returns the result of current-time. */ | |
205 | Lisp_Object | |
206 | w32_get_internal_run_time () | |
207 | { | |
208 | if (get_process_times_fn) | |
209 | { | |
210 | FILETIME create, exit, kernel, user; | |
211 | HANDLE proc = GetCurrentProcess(); | |
212 | if ((*get_process_times_fn) (proc, &create, &exit, &kernel, &user)) | |
213 | { | |
214 | LARGE_INTEGER user_int, kernel_int, total; | |
215 | int microseconds; | |
216 | user_int.LowPart = user.dwLowDateTime; | |
217 | user_int.HighPart = user.dwHighDateTime; | |
218 | kernel_int.LowPart = kernel.dwLowDateTime; | |
219 | kernel_int.HighPart = kernel.dwHighDateTime; | |
220 | total.QuadPart = user_int.QuadPart + kernel_int.QuadPart; | |
221 | /* FILETIME is 100 nanosecond increments, Emacs only wants | |
222 | microsecond resolution. */ | |
223 | total.QuadPart /= 10; | |
224 | microseconds = total.QuadPart % 1000000; | |
225 | total.QuadPart /= 1000000; | |
226 | ||
227 | /* Sanity check to make sure we can represent the result. */ | |
228 | if (total.HighPart == 0) | |
229 | { | |
230 | int secs = total.LowPart; | |
231 | ||
232 | return list3 (make_number ((secs >> 16) & 0xffff), | |
233 | make_number (secs & 0xffff), | |
234 | make_number (microseconds)); | |
235 | } | |
236 | } | |
237 | } | |
238 | ||
239 | return Fcurrent_time (); | |
240 | } | |
241 | ||
f60ae425 BK |
242 | /* ** The wrapper functions ** */ |
243 | ||
244 | BOOL WINAPI open_process_token ( | |
245 | HANDLE ProcessHandle, | |
246 | DWORD DesiredAccess, | |
247 | PHANDLE TokenHandle) | |
248 | { | |
9785d95b | 249 | static OpenProcessToken_Proc s_pfn_Open_Process_Token = NULL; |
f60ae425 BK |
250 | HMODULE hm_advapi32 = NULL; |
251 | if (is_windows_9x () == TRUE) | |
252 | { | |
253 | return FALSE; | |
254 | } | |
9785d95b BK |
255 | if (g_b_init_open_process_token == 0) |
256 | { | |
257 | g_b_init_open_process_token = 1; | |
258 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
259 | s_pfn_Open_Process_Token = | |
260 | (OpenProcessToken_Proc) GetProcAddress (hm_advapi32, "OpenProcessToken"); | |
261 | } | |
262 | if (s_pfn_Open_Process_Token == NULL) | |
f60ae425 BK |
263 | { |
264 | return FALSE; | |
265 | } | |
266 | return ( | |
9785d95b | 267 | s_pfn_Open_Process_Token ( |
f60ae425 BK |
268 | ProcessHandle, |
269 | DesiredAccess, | |
270 | TokenHandle) | |
271 | ); | |
272 | } | |
273 | ||
274 | BOOL WINAPI get_token_information ( | |
275 | HANDLE TokenHandle, | |
276 | TOKEN_INFORMATION_CLASS TokenInformationClass, | |
277 | LPVOID TokenInformation, | |
278 | DWORD TokenInformationLength, | |
279 | PDWORD ReturnLength) | |
280 | { | |
9785d95b | 281 | static GetTokenInformation_Proc s_pfn_Get_Token_Information = NULL; |
f60ae425 BK |
282 | HMODULE hm_advapi32 = NULL; |
283 | if (is_windows_9x () == TRUE) | |
284 | { | |
285 | return FALSE; | |
286 | } | |
9785d95b BK |
287 | if (g_b_init_get_token_information == 0) |
288 | { | |
289 | g_b_init_get_token_information = 1; | |
290 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
291 | s_pfn_Get_Token_Information = | |
292 | (GetTokenInformation_Proc) GetProcAddress (hm_advapi32, "GetTokenInformation"); | |
293 | } | |
294 | if (s_pfn_Get_Token_Information == NULL) | |
f60ae425 BK |
295 | { |
296 | return FALSE; | |
297 | } | |
298 | return ( | |
9785d95b | 299 | s_pfn_Get_Token_Information ( |
f60ae425 BK |
300 | TokenHandle, |
301 | TokenInformationClass, | |
302 | TokenInformation, | |
303 | TokenInformationLength, | |
304 | ReturnLength) | |
305 | ); | |
306 | } | |
307 | ||
308 | BOOL WINAPI lookup_account_sid ( | |
309 | LPCTSTR lpSystemName, | |
310 | PSID Sid, | |
311 | LPTSTR Name, | |
312 | LPDWORD cbName, | |
313 | LPTSTR DomainName, | |
314 | LPDWORD cbDomainName, | |
315 | PSID_NAME_USE peUse) | |
316 | { | |
9785d95b | 317 | static LookupAccountSid_Proc s_pfn_Lookup_Account_Sid = NULL; |
f60ae425 BK |
318 | HMODULE hm_advapi32 = NULL; |
319 | if (is_windows_9x () == TRUE) | |
320 | { | |
321 | return FALSE; | |
322 | } | |
9785d95b BK |
323 | if (g_b_init_lookup_account_sid == 0) |
324 | { | |
325 | g_b_init_lookup_account_sid = 1; | |
326 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
327 | s_pfn_Lookup_Account_Sid = | |
328 | (LookupAccountSid_Proc) GetProcAddress (hm_advapi32, LookupAccountSid_Name); | |
329 | } | |
330 | if (s_pfn_Lookup_Account_Sid == NULL) | |
f60ae425 BK |
331 | { |
332 | return FALSE; | |
333 | } | |
334 | return ( | |
9785d95b | 335 | s_pfn_Lookup_Account_Sid ( |
f60ae425 BK |
336 | lpSystemName, |
337 | Sid, | |
338 | Name, | |
339 | cbName, | |
340 | DomainName, | |
341 | cbDomainName, | |
342 | peUse) | |
343 | ); | |
344 | } | |
345 | ||
346 | PSID_IDENTIFIER_AUTHORITY WINAPI get_sid_identifier_authority ( | |
347 | PSID pSid) | |
348 | { | |
9785d95b | 349 | static GetSidIdentifierAuthority_Proc s_pfn_Get_Sid_Identifier_Authority = NULL; |
f60ae425 BK |
350 | HMODULE hm_advapi32 = NULL; |
351 | if (is_windows_9x () == TRUE) | |
352 | { | |
353 | return NULL; | |
354 | } | |
9785d95b BK |
355 | if (g_b_init_get_sid_identifier_authority == 0) |
356 | { | |
357 | g_b_init_get_sid_identifier_authority = 1; | |
358 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
359 | s_pfn_Get_Sid_Identifier_Authority = | |
360 | (GetSidIdentifierAuthority_Proc) GetProcAddress ( | |
361 | hm_advapi32, "GetSidIdentifierAuthority"); | |
362 | } | |
363 | if (s_pfn_Get_Sid_Identifier_Authority == NULL) | |
f60ae425 BK |
364 | { |
365 | return NULL; | |
366 | } | |
9785d95b | 367 | return (s_pfn_Get_Sid_Identifier_Authority (pSid)); |
f60ae425 BK |
368 | } |
369 | ||
c617afce EZ |
370 | PDWORD WINAPI get_sid_sub_authority ( |
371 | PSID pSid, | |
372 | DWORD n) | |
373 | { | |
374 | static GetSidSubAuthority_Proc s_pfn_Get_Sid_Sub_Authority = NULL; | |
6811b9f4 | 375 | static DWORD zero = 0U; |
c617afce EZ |
376 | HMODULE hm_advapi32 = NULL; |
377 | if (is_windows_9x () == TRUE) | |
378 | { | |
6811b9f4 | 379 | return &zero; |
c617afce EZ |
380 | } |
381 | if (g_b_init_get_sid_sub_authority == 0) | |
382 | { | |
383 | g_b_init_get_sid_sub_authority = 1; | |
384 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
385 | s_pfn_Get_Sid_Sub_Authority = | |
386 | (GetSidSubAuthority_Proc) GetProcAddress ( | |
387 | hm_advapi32, "GetSidSubAuthority"); | |
388 | } | |
389 | if (s_pfn_Get_Sid_Sub_Authority == NULL) | |
390 | { | |
6811b9f4 | 391 | return &zero; |
c617afce EZ |
392 | } |
393 | return (s_pfn_Get_Sid_Sub_Authority (pSid, n)); | |
394 | } | |
395 | ||
396 | PUCHAR WINAPI get_sid_sub_authority_count ( | |
397 | PSID pSid) | |
398 | { | |
399 | static GetSidSubAuthorityCount_Proc s_pfn_Get_Sid_Sub_Authority_Count = NULL; | |
6811b9f4 | 400 | static UCHAR zero = 0U; |
c617afce EZ |
401 | HMODULE hm_advapi32 = NULL; |
402 | if (is_windows_9x () == TRUE) | |
403 | { | |
6811b9f4 | 404 | return &zero; |
c617afce EZ |
405 | } |
406 | if (g_b_init_get_sid_sub_authority_count == 0) | |
407 | { | |
408 | g_b_init_get_sid_sub_authority_count = 1; | |
409 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
410 | s_pfn_Get_Sid_Sub_Authority_Count = | |
411 | (GetSidSubAuthorityCount_Proc) GetProcAddress ( | |
412 | hm_advapi32, "GetSidSubAuthorityCount"); | |
413 | } | |
414 | if (s_pfn_Get_Sid_Sub_Authority_Count == NULL) | |
415 | { | |
6811b9f4 | 416 | return &zero; |
c617afce EZ |
417 | } |
418 | return (s_pfn_Get_Sid_Sub_Authority_Count (pSid)); | |
419 | } | |
420 | ||
f60ae425 BK |
421 | /* |
422 | END: Wrapper functions around OpenProcessToken | |
423 | and other functions in advapi32.dll that are only | |
424 | supported in Windows NT / 2k / XP | |
425 | */ | |
426 | ||
427 | \f | |
18e070ac AI |
428 | /* Equivalent of strerror for W32 error codes. */ |
429 | char * | |
430 | w32_strerror (int error_no) | |
431 | { | |
432 | static char buf[500]; | |
433 | ||
434 | if (error_no == 0) | |
435 | error_no = GetLastError (); | |
436 | ||
437 | buf[0] = '\0'; | |
438 | if (!FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, | |
439 | error_no, | |
440 | 0, /* choose most suitable language */ | |
441 | buf, sizeof (buf), NULL)) | |
442 | sprintf (buf, "w32 error %u", error_no); | |
443 | return buf; | |
444 | } | |
445 | ||
ed91b2ad EZ |
446 | /* Return 1 if P is a valid pointer to an object of size SIZE. Return |
447 | 0 if P is NOT a valid pointer. Return -1 if we cannot validate P. | |
448 | ||
449 | This is called from alloc.c:valid_pointer_p. */ | |
450 | int | |
451 | w32_valid_pointer_p (void *p, int size) | |
452 | { | |
453 | SIZE_T done; | |
454 | HANDLE h = OpenProcess (PROCESS_VM_READ, FALSE, GetCurrentProcessId ()); | |
455 | ||
456 | if (h) | |
457 | { | |
458 | unsigned char *buf = alloca (size); | |
459 | int retval = ReadProcessMemory (h, p, buf, size, &done); | |
460 | ||
461 | CloseHandle (h); | |
462 | return retval; | |
463 | } | |
464 | else | |
465 | return -1; | |
466 | } | |
467 | ||
76b3903d | 468 | static char startup_dir[MAXPATHLEN]; |
00b3b7b3 | 469 | |
95ed0025 | 470 | /* Get the current working directory. */ |
480b0c5b | 471 | char * |
95ed0025 RS |
472 | getwd (char *dir) |
473 | { | |
76b3903d | 474 | #if 0 |
480b0c5b GV |
475 | if (GetCurrentDirectory (MAXPATHLEN, dir) > 0) |
476 | return dir; | |
477 | return NULL; | |
76b3903d GV |
478 | #else |
479 | /* Emacs doesn't actually change directory itself, and we want to | |
480 | force our real wd to be where emacs.exe is to avoid unnecessary | |
481 | conflicts when trying to rename or delete directories. */ | |
482 | strcpy (dir, startup_dir); | |
483 | return dir; | |
484 | #endif | |
95ed0025 RS |
485 | } |
486 | ||
480b0c5b | 487 | #ifndef HAVE_SOCKETS |
95ed0025 RS |
488 | /* Emulate gethostname. */ |
489 | int | |
490 | gethostname (char *buffer, int size) | |
491 | { | |
177c0ea7 | 492 | /* NT only allows small host names, so the buffer is |
95ed0025 RS |
493 | certainly large enough. */ |
494 | return !GetComputerName (buffer, &size); | |
495 | } | |
480b0c5b | 496 | #endif /* HAVE_SOCKETS */ |
95ed0025 RS |
497 | |
498 | /* Emulate getloadavg. */ | |
499 | int | |
500 | getloadavg (double loadavg[], int nelem) | |
501 | { | |
502 | int i; | |
503 | ||
504 | /* A faithful emulation is going to have to be saved for a rainy day. */ | |
177c0ea7 | 505 | for (i = 0; i < nelem; i++) |
95ed0025 RS |
506 | { |
507 | loadavg[i] = 0.0; | |
508 | } | |
509 | return i; | |
510 | } | |
511 | ||
480b0c5b | 512 | /* Emulate getpwuid, getpwnam and others. */ |
95ed0025 | 513 | |
051fe60d GV |
514 | #define PASSWD_FIELD_SIZE 256 |
515 | ||
07f7980a EZ |
516 | static char dflt_passwd_name[PASSWD_FIELD_SIZE]; |
517 | static char dflt_passwd_passwd[PASSWD_FIELD_SIZE]; | |
518 | static char dflt_passwd_gecos[PASSWD_FIELD_SIZE]; | |
519 | static char dflt_passwd_dir[PASSWD_FIELD_SIZE]; | |
520 | static char dflt_passwd_shell[PASSWD_FIELD_SIZE]; | |
95ed0025 | 521 | |
07f7980a | 522 | static struct passwd dflt_passwd = |
95ed0025 | 523 | { |
07f7980a EZ |
524 | dflt_passwd_name, |
525 | dflt_passwd_passwd, | |
95ed0025 RS |
526 | 0, |
527 | 0, | |
528 | 0, | |
07f7980a EZ |
529 | dflt_passwd_gecos, |
530 | dflt_passwd_dir, | |
531 | dflt_passwd_shell, | |
95ed0025 RS |
532 | }; |
533 | ||
07f7980a EZ |
534 | static char dflt_group_name[GNLEN+1]; |
535 | ||
536 | static struct group dflt_group = | |
3d19b645 | 537 | { |
07f7980a EZ |
538 | /* When group information is not available, we return this as the |
539 | group for all files. */ | |
540 | dflt_group_name, | |
541 | 0, | |
3d19b645 LH |
542 | }; |
543 | ||
177c0ea7 JB |
544 | int |
545 | getuid () | |
546 | { | |
07f7980a | 547 | return dflt_passwd.pw_uid; |
480b0c5b GV |
548 | } |
549 | ||
177c0ea7 JB |
550 | int |
551 | geteuid () | |
552 | { | |
480b0c5b GV |
553 | /* I could imagine arguing for checking to see whether the user is |
554 | in the Administrators group and returning a UID of 0 for that | |
555 | case, but I don't know how wise that would be in the long run. */ | |
177c0ea7 | 556 | return getuid (); |
480b0c5b GV |
557 | } |
558 | ||
177c0ea7 JB |
559 | int |
560 | getgid () | |
561 | { | |
07f7980a | 562 | return dflt_passwd.pw_gid; |
480b0c5b GV |
563 | } |
564 | ||
177c0ea7 JB |
565 | int |
566 | getegid () | |
567 | { | |
480b0c5b GV |
568 | return getgid (); |
569 | } | |
570 | ||
95ed0025 RS |
571 | struct passwd * |
572 | getpwuid (int uid) | |
573 | { | |
07f7980a EZ |
574 | if (uid == dflt_passwd.pw_uid) |
575 | return &dflt_passwd; | |
480b0c5b | 576 | return NULL; |
95ed0025 RS |
577 | } |
578 | ||
3d19b645 LH |
579 | struct group * |
580 | getgrgid (gid_t gid) | |
581 | { | |
07f7980a | 582 | return &dflt_group; |
3d19b645 LH |
583 | } |
584 | ||
95ed0025 RS |
585 | struct passwd * |
586 | getpwnam (char *name) | |
587 | { | |
588 | struct passwd *pw; | |
177c0ea7 | 589 | |
95ed0025 RS |
590 | pw = getpwuid (getuid ()); |
591 | if (!pw) | |
592 | return pw; | |
593 | ||
480b0c5b | 594 | if (stricmp (name, pw->pw_name)) |
95ed0025 RS |
595 | return NULL; |
596 | ||
597 | return pw; | |
598 | } | |
599 | ||
480b0c5b GV |
600 | void |
601 | init_user_info () | |
95ed0025 | 602 | { |
480b0c5b GV |
603 | /* Find the user's real name by opening the process token and |
604 | looking up the name associated with the user-sid in that token. | |
605 | ||
606 | Use the relative portion of the identifier authority value from | |
607 | the user-sid as the user id value (same for group id using the | |
608 | primary group sid from the process token). */ | |
609 | ||
07f7980a EZ |
610 | char uname[UNLEN+1], gname[GNLEN+1], domain[1025]; |
611 | DWORD ulength = sizeof (uname), dlength = sizeof (domain), trash; | |
612 | DWORD glength = sizeof (gname); | |
10aabbf9 JB |
613 | HANDLE token = NULL; |
614 | SID_NAME_USE user_type; | |
634d3003 EZ |
615 | unsigned char buf[1024]; |
616 | TOKEN_USER user_token; | |
617 | TOKEN_PRIMARY_GROUP group_token; | |
10aabbf9 | 618 | |
07f7980a EZ |
619 | /* "None" is the default group name on standalone workstations. */ |
620 | strcpy (dflt_group_name, "None"); | |
10aabbf9 JB |
621 | if (open_process_token (GetCurrentProcess (), TOKEN_QUERY, &token) |
622 | && get_token_information (token, TokenUser, | |
634d3003 EZ |
623 | (PVOID)buf, sizeof (buf), &trash) |
624 | && (memcpy (&user_token, buf, sizeof (user_token)), | |
07f7980a | 625 | lookup_account_sid (NULL, user_token.User.Sid, uname, &ulength, |
634d3003 | 626 | domain, &dlength, &user_type))) |
d1c1c3d2 | 627 | { |
07f7980a | 628 | strcpy (dflt_passwd.pw_name, uname); |
c617afce | 629 | /* Determine a reasonable uid value. */ |
07f7980a | 630 | if (stricmp ("administrator", uname) == 0) |
480b0c5b | 631 | { |
07f7980a EZ |
632 | dflt_passwd.pw_uid = 500; /* well-known Administrator uid */ |
633 | dflt_passwd.pw_gid = 513; /* well-known None gid */ | |
480b0c5b GV |
634 | } |
635 | else | |
636 | { | |
ce0ee994 EZ |
637 | /* Use the last sub-authority value of the RID, the relative |
638 | portion of the SID, as user/group ID. */ | |
c617afce | 639 | DWORD n_subauthorities = |
634d3003 | 640 | *get_sid_sub_authority_count (user_token.User.Sid); |
c617afce EZ |
641 | |
642 | if (n_subauthorities < 1) | |
07f7980a | 643 | dflt_passwd.pw_uid = 0; /* the "World" RID */ |
c617afce EZ |
644 | else |
645 | { | |
07f7980a | 646 | dflt_passwd.pw_uid = |
634d3003 | 647 | *get_sid_sub_authority (user_token.User.Sid, |
c617afce | 648 | n_subauthorities - 1); |
c617afce | 649 | } |
480b0c5b GV |
650 | |
651 | /* Get group id */ | |
f60ae425 | 652 | if (get_token_information (token, TokenPrimaryGroup, |
634d3003 | 653 | (PVOID)buf, sizeof (buf), &trash)) |
480b0c5b | 654 | { |
634d3003 | 655 | memcpy (&group_token, buf, sizeof (group_token)); |
c617afce | 656 | n_subauthorities = |
634d3003 | 657 | *get_sid_sub_authority_count (group_token.PrimaryGroup); |
c617afce EZ |
658 | |
659 | if (n_subauthorities < 1) | |
07f7980a | 660 | dflt_passwd.pw_gid = 0; /* the "World" RID */ |
c617afce EZ |
661 | else |
662 | { | |
07f7980a | 663 | dflt_passwd.pw_gid = |
634d3003 | 664 | *get_sid_sub_authority (group_token.PrimaryGroup, |
c617afce | 665 | n_subauthorities - 1); |
c617afce | 666 | } |
07f7980a EZ |
667 | dlength = sizeof (domain); |
668 | if (lookup_account_sid (NULL, group_token.PrimaryGroup, | |
669 | gname, &glength, NULL, &dlength, | |
670 | &user_type)) | |
671 | strcpy (dflt_group_name, gname); | |
480b0c5b GV |
672 | } |
673 | else | |
07f7980a | 674 | dflt_passwd.pw_gid = dflt_passwd.pw_uid; |
480b0c5b GV |
675 | } |
676 | } | |
677 | /* If security calls are not supported (presumably because we | |
10aabbf9 | 678 | are running under Windows 95), fallback to this. */ |
07f7980a | 679 | else if (GetUserName (uname, &ulength)) |
480b0c5b | 680 | { |
07f7980a EZ |
681 | strcpy (dflt_passwd.pw_name, uname); |
682 | if (stricmp ("administrator", uname) == 0) | |
683 | dflt_passwd.pw_uid = 0; | |
480b0c5b | 684 | else |
07f7980a EZ |
685 | dflt_passwd.pw_uid = 123; |
686 | dflt_passwd.pw_gid = dflt_passwd.pw_uid; | |
480b0c5b GV |
687 | } |
688 | else | |
689 | { | |
07f7980a EZ |
690 | strcpy (dflt_passwd.pw_name, "unknown"); |
691 | dflt_passwd.pw_uid = 123; | |
692 | dflt_passwd.pw_gid = 123; | |
d1c1c3d2 | 693 | } |
07f7980a | 694 | dflt_group.gr_gid = dflt_passwd.pw_gid; |
95ed0025 | 695 | |
480b0c5b GV |
696 | /* Ensure HOME and SHELL are defined. */ |
697 | if (getenv ("HOME") == NULL) | |
ca149beb | 698 | abort (); |
480b0c5b | 699 | if (getenv ("SHELL") == NULL) |
ca149beb | 700 | abort (); |
95ed0025 | 701 | |
480b0c5b | 702 | /* Set dir and shell from environment variables. */ |
07f7980a EZ |
703 | strcpy (dflt_passwd.pw_dir, getenv ("HOME")); |
704 | strcpy (dflt_passwd.pw_shell, getenv ("SHELL")); | |
bd4a449f | 705 | |
480b0c5b GV |
706 | if (token) |
707 | CloseHandle (token); | |
95ed0025 RS |
708 | } |
709 | ||
95ed0025 | 710 | int |
480b0c5b | 711 | random () |
95ed0025 | 712 | { |
480b0c5b GV |
713 | /* rand () on NT gives us 15 random bits...hack together 30 bits. */ |
714 | return ((rand () << 15) | rand ()); | |
95ed0025 RS |
715 | } |
716 | ||
95ed0025 | 717 | void |
480b0c5b | 718 | srandom (int seed) |
95ed0025 | 719 | { |
480b0c5b | 720 | srand (seed); |
95ed0025 RS |
721 | } |
722 | ||
76b3903d | 723 | |
cbe39279 RS |
724 | /* Normalize filename by converting all path separators to |
725 | the specified separator. Also conditionally convert upper | |
726 | case path name components to lower case. */ | |
727 | ||
728 | static void | |
729 | normalize_filename (fp, path_sep) | |
730 | register char *fp; | |
731 | char path_sep; | |
732 | { | |
733 | char sep; | |
734 | char *elem; | |
735 | ||
5162ffce MB |
736 | /* Always lower-case drive letters a-z, even if the filesystem |
737 | preserves case in filenames. | |
738 | This is so filenames can be compared by string comparison | |
739 | functions that are case-sensitive. Even case-preserving filesystems | |
740 | do not distinguish case in drive letters. */ | |
741 | if (fp[1] == ':' && *fp >= 'A' && *fp <= 'Z') | |
742 | { | |
743 | *fp += 'a' - 'A'; | |
744 | fp += 2; | |
745 | } | |
746 | ||
fbd6baed | 747 | if (NILP (Vw32_downcase_file_names)) |
cbe39279 RS |
748 | { |
749 | while (*fp) | |
750 | { | |
751 | if (*fp == '/' || *fp == '\\') | |
752 | *fp = path_sep; | |
753 | fp++; | |
754 | } | |
755 | return; | |
756 | } | |
757 | ||
758 | sep = path_sep; /* convert to this path separator */ | |
759 | elem = fp; /* start of current path element */ | |
760 | ||
761 | do { | |
762 | if (*fp >= 'a' && *fp <= 'z') | |
763 | elem = 0; /* don't convert this element */ | |
764 | ||
765 | if (*fp == 0 || *fp == ':') | |
766 | { | |
767 | sep = *fp; /* restore current separator (or 0) */ | |
768 | *fp = '/'; /* after conversion of this element */ | |
769 | } | |
770 | ||
771 | if (*fp == '/' || *fp == '\\') | |
772 | { | |
773 | if (elem && elem != fp) | |
774 | { | |
775 | *fp = 0; /* temporary end of string */ | |
776 | _strlwr (elem); /* while we convert to lower case */ | |
777 | } | |
778 | *fp = sep; /* convert (or restore) path separator */ | |
779 | elem = fp + 1; /* next element starts after separator */ | |
780 | sep = path_sep; | |
781 | } | |
782 | } while (*fp++); | |
783 | } | |
784 | ||
480b0c5b | 785 | /* Destructively turn backslashes into slashes. */ |
95ed0025 | 786 | void |
480b0c5b GV |
787 | dostounix_filename (p) |
788 | register char *p; | |
95ed0025 | 789 | { |
cbe39279 | 790 | normalize_filename (p, '/'); |
95ed0025 RS |
791 | } |
792 | ||
480b0c5b | 793 | /* Destructively turn slashes into backslashes. */ |
95ed0025 | 794 | void |
480b0c5b GV |
795 | unixtodos_filename (p) |
796 | register char *p; | |
95ed0025 | 797 | { |
cbe39279 | 798 | normalize_filename (p, '\\'); |
95ed0025 RS |
799 | } |
800 | ||
480b0c5b GV |
801 | /* Remove all CR's that are followed by a LF. |
802 | (From msdos.c...probably should figure out a way to share it, | |
803 | although this code isn't going to ever change.) */ | |
35f0d482 | 804 | int |
480b0c5b GV |
805 | crlf_to_lf (n, buf) |
806 | register int n; | |
807 | register unsigned char *buf; | |
35f0d482 | 808 | { |
480b0c5b GV |
809 | unsigned char *np = buf; |
810 | unsigned char *startp = buf; | |
811 | unsigned char *endp = buf + n; | |
35f0d482 | 812 | |
480b0c5b GV |
813 | if (n == 0) |
814 | return n; | |
815 | while (buf < endp - 1) | |
95ed0025 | 816 | { |
480b0c5b GV |
817 | if (*buf == 0x0d) |
818 | { | |
819 | if (*(++buf) != 0x0a) | |
820 | *np++ = 0x0d; | |
821 | } | |
822 | else | |
823 | *np++ = *buf++; | |
95ed0025 | 824 | } |
480b0c5b GV |
825 | if (buf < endp) |
826 | *np++ = *buf++; | |
827 | return np - startp; | |
95ed0025 RS |
828 | } |
829 | ||
76b3903d GV |
830 | /* Parse the root part of file name, if present. Return length and |
831 | optionally store pointer to char after root. */ | |
832 | static int | |
833 | parse_root (char * name, char ** pPath) | |
834 | { | |
835 | char * start = name; | |
836 | ||
837 | if (name == NULL) | |
838 | return 0; | |
839 | ||
840 | /* find the root name of the volume if given */ | |
841 | if (isalpha (name[0]) && name[1] == ':') | |
842 | { | |
843 | /* skip past drive specifier */ | |
844 | name += 2; | |
845 | if (IS_DIRECTORY_SEP (name[0])) | |
846 | name++; | |
847 | } | |
848 | else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1])) | |
849 | { | |
850 | int slashes = 2; | |
851 | name += 2; | |
852 | do | |
853 | { | |
854 | if (IS_DIRECTORY_SEP (*name) && --slashes == 0) | |
855 | break; | |
856 | name++; | |
857 | } | |
858 | while ( *name ); | |
859 | if (IS_DIRECTORY_SEP (name[0])) | |
860 | name++; | |
861 | } | |
862 | ||
863 | if (pPath) | |
864 | *pPath = name; | |
865 | ||
866 | return name - start; | |
867 | } | |
868 | ||
869 | /* Get long base name for name; name is assumed to be absolute. */ | |
870 | static int | |
871 | get_long_basename (char * name, char * buf, int size) | |
872 | { | |
873 | WIN32_FIND_DATA find_data; | |
874 | HANDLE dir_handle; | |
875 | int len = 0; | |
876 | ||
9ab8560d | 877 | /* must be valid filename, no wild cards or other invalid characters */ |
22189f79 | 878 | if (_mbspbrk (name, "*?|<>\"")) |
bb1584c8 RS |
879 | return 0; |
880 | ||
76b3903d GV |
881 | dir_handle = FindFirstFile (name, &find_data); |
882 | if (dir_handle != INVALID_HANDLE_VALUE) | |
883 | { | |
884 | if ((len = strlen (find_data.cFileName)) < size) | |
885 | memcpy (buf, find_data.cFileName, len + 1); | |
886 | else | |
887 | len = 0; | |
888 | FindClose (dir_handle); | |
889 | } | |
890 | return len; | |
891 | } | |
892 | ||
893 | /* Get long name for file, if possible (assumed to be absolute). */ | |
894 | BOOL | |
895 | w32_get_long_filename (char * name, char * buf, int size) | |
896 | { | |
897 | char * o = buf; | |
898 | char * p; | |
899 | char * q; | |
900 | char full[ MAX_PATH ]; | |
901 | int len; | |
902 | ||
903 | len = strlen (name); | |
904 | if (len >= MAX_PATH) | |
905 | return FALSE; | |
906 | ||
907 | /* Use local copy for destructive modification. */ | |
908 | memcpy (full, name, len+1); | |
909 | unixtodos_filename (full); | |
910 | ||
911 | /* Copy root part verbatim. */ | |
912 | len = parse_root (full, &p); | |
913 | memcpy (o, full, len); | |
914 | o += len; | |
4f8ac0b2 | 915 | *o = '\0'; |
76b3903d GV |
916 | size -= len; |
917 | ||
4f8ac0b2 | 918 | while (p != NULL && *p) |
76b3903d GV |
919 | { |
920 | q = p; | |
921 | p = strchr (q, '\\'); | |
922 | if (p) *p = '\0'; | |
923 | len = get_long_basename (full, o, size); | |
924 | if (len > 0) | |
925 | { | |
926 | o += len; | |
927 | size -= len; | |
928 | if (p != NULL) | |
929 | { | |
930 | *p++ = '\\'; | |
931 | if (size < 2) | |
932 | return FALSE; | |
933 | *o++ = '\\'; | |
934 | size--; | |
935 | *o = '\0'; | |
936 | } | |
937 | } | |
938 | else | |
939 | return FALSE; | |
940 | } | |
76b3903d GV |
941 | |
942 | return TRUE; | |
943 | } | |
944 | ||
9d3355d1 GV |
945 | int |
946 | is_unc_volume (const char *filename) | |
947 | { | |
948 | const char *ptr = filename; | |
949 | ||
950 | if (!IS_DIRECTORY_SEP (ptr[0]) || !IS_DIRECTORY_SEP (ptr[1]) || !ptr[2]) | |
951 | return 0; | |
952 | ||
22189f79 | 953 | if (_mbspbrk (ptr + 2, "*?|<>\"\\/")) |
9d3355d1 GV |
954 | return 0; |
955 | ||
956 | return 1; | |
957 | } | |
76b3903d | 958 | |
95ed0025 RS |
959 | /* Routines that are no-ops on NT but are defined to get Emacs to compile. */ |
960 | ||
177c0ea7 JB |
961 | int |
962 | sigsetmask (int signal_mask) | |
963 | { | |
95ed0025 RS |
964 | return 0; |
965 | } | |
966 | ||
177c0ea7 JB |
967 | int |
968 | sigmask (int sig) | |
969 | { | |
8f900f6e AI |
970 | return 0; |
971 | } | |
972 | ||
177c0ea7 JB |
973 | int |
974 | sigblock (int sig) | |
975 | { | |
95ed0025 RS |
976 | return 0; |
977 | } | |
978 | ||
177c0ea7 JB |
979 | int |
980 | sigunblock (int sig) | |
981 | { | |
8f900f6e AI |
982 | return 0; |
983 | } | |
984 | ||
177c0ea7 JB |
985 | int |
986 | setpgrp (int pid, int gid) | |
987 | { | |
95ed0025 RS |
988 | return 0; |
989 | } | |
990 | ||
177c0ea7 JB |
991 | int |
992 | alarm (int seconds) | |
993 | { | |
95ed0025 RS |
994 | return 0; |
995 | } | |
996 | ||
480b0c5b | 997 | #define REG_ROOT "SOFTWARE\\GNU\\Emacs" |
f332b293 | 998 | |
177c0ea7 | 999 | LPBYTE |
fbd6baed | 1000 | w32_get_resource (key, lpdwtype) |
f332b293 GV |
1001 | char *key; |
1002 | LPDWORD lpdwtype; | |
1003 | { | |
1004 | LPBYTE lpvalue; | |
1005 | HKEY hrootkey = NULL; | |
1006 | DWORD cbData; | |
177c0ea7 JB |
1007 | |
1008 | /* Check both the current user and the local machine to see if | |
f332b293 | 1009 | we have any resources. */ |
177c0ea7 | 1010 | |
f332b293 GV |
1011 | if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) |
1012 | { | |
1013 | lpvalue = NULL; | |
1014 | ||
177c0ea7 JB |
1015 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS |
1016 | && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL | |
f332b293 GV |
1017 | && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS) |
1018 | { | |
4da4d9bb | 1019 | RegCloseKey (hrootkey); |
f332b293 GV |
1020 | return (lpvalue); |
1021 | } | |
1022 | ||
1023 | if (lpvalue) xfree (lpvalue); | |
177c0ea7 | 1024 | |
f332b293 | 1025 | RegCloseKey (hrootkey); |
177c0ea7 JB |
1026 | } |
1027 | ||
f332b293 GV |
1028 | if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) |
1029 | { | |
1030 | lpvalue = NULL; | |
177c0ea7 | 1031 | |
76b3903d GV |
1032 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS |
1033 | && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL | |
1034 | && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS) | |
f332b293 | 1035 | { |
4da4d9bb | 1036 | RegCloseKey (hrootkey); |
f332b293 GV |
1037 | return (lpvalue); |
1038 | } | |
177c0ea7 | 1039 | |
f332b293 | 1040 | if (lpvalue) xfree (lpvalue); |
177c0ea7 | 1041 | |
f332b293 | 1042 | RegCloseKey (hrootkey); |
177c0ea7 JB |
1043 | } |
1044 | ||
f332b293 GV |
1045 | return (NULL); |
1046 | } | |
1047 | ||
75b08edb GV |
1048 | char *get_emacs_configuration (void); |
1049 | extern Lisp_Object Vsystem_configuration; | |
1050 | ||
f332b293 | 1051 | void |
aa7b87b0 | 1052 | init_environment (char ** argv) |
f332b293 | 1053 | { |
b3308d2e KH |
1054 | static const char * const tempdirs[] = { |
1055 | "$TMPDIR", "$TEMP", "$TMP", "c:/" | |
1056 | }; | |
2d5324c5 | 1057 | |
b3308d2e | 1058 | int i; |
2d5324c5 | 1059 | |
b3308d2e KH |
1060 | const int imax = sizeof (tempdirs) / sizeof (tempdirs[0]); |
1061 | ||
1062 | /* Make sure they have a usable $TMPDIR. Many Emacs functions use | |
1063 | temporary files and assume "/tmp" if $TMPDIR is unset, which | |
1064 | will break on DOS/Windows. Refuse to work if we cannot find | |
1065 | a directory, not even "c:/", usable for that purpose. */ | |
1066 | for (i = 0; i < imax ; i++) | |
1067 | { | |
1068 | const char *tmp = tempdirs[i]; | |
1069 | ||
1070 | if (*tmp == '$') | |
1071 | tmp = getenv (tmp + 1); | |
1072 | /* Note that `access' can lie to us if the directory resides on a | |
1073 | read-only filesystem, like CD-ROM or a write-protected floppy. | |
1074 | The only way to be really sure is to actually create a file and | |
1075 | see if it succeeds. But I think that's too much to ask. */ | |
a302c7ae | 1076 | if (tmp && _access (tmp, D_OK) == 0) |
b3308d2e KH |
1077 | { |
1078 | char * var = alloca (strlen (tmp) + 8); | |
1079 | sprintf (var, "TMPDIR=%s", tmp); | |
aca583b2 | 1080 | _putenv (strdup (var)); |
b3308d2e KH |
1081 | break; |
1082 | } | |
1083 | } | |
1084 | if (i >= imax) | |
1085 | cmd_error_internal | |
1086 | (Fcons (Qerror, | |
1087 | Fcons (build_string ("no usable temporary directories found!!"), | |
1088 | Qnil)), | |
1089 | "While setting TMPDIR: "); | |
1090 | ||
ca149beb AI |
1091 | /* Check for environment variables and use registry settings if they |
1092 | don't exist. Fallback on default values where applicable. */ | |
f332b293 | 1093 | { |
480b0c5b GV |
1094 | int i; |
1095 | LPBYTE lpval; | |
1096 | DWORD dwType; | |
69fb0241 | 1097 | char locale_name[32]; |
2d5324c5 JR |
1098 | struct stat ignored; |
1099 | char default_home[MAX_PATH]; | |
f332b293 | 1100 | |
e00b99c8 | 1101 | static const struct env_entry |
ca149beb AI |
1102 | { |
1103 | char * name; | |
1104 | char * def_value; | |
e00b99c8 | 1105 | } dflt_envvars[] = |
ca149beb AI |
1106 | { |
1107 | {"HOME", "C:/"}, | |
1108 | {"PRELOAD_WINSOCK", NULL}, | |
1109 | {"emacs_dir", "C:/emacs"}, | |
cc14250a | 1110 | {"EMACSLOADPATH", "%emacs_dir%/site-lisp;%emacs_dir%/../site-lisp;%emacs_dir%/lisp;%emacs_dir%/leim"}, |
ca149beb AI |
1111 | {"SHELL", "%emacs_dir%/bin/cmdproxy.exe"}, |
1112 | {"EMACSDATA", "%emacs_dir%/etc"}, | |
1113 | {"EMACSPATH", "%emacs_dir%/bin"}, | |
76b3903d | 1114 | /* We no longer set INFOPATH because Info-default-directory-list |
ca149beb AI |
1115 | is then ignored. */ |
1116 | /* {"INFOPATH", "%emacs_dir%/info"}, */ | |
1117 | {"EMACSDOC", "%emacs_dir%/etc"}, | |
69fb0241 JR |
1118 | {"TERM", "cmd"}, |
1119 | {"LANG", NULL}, | |
480b0c5b GV |
1120 | }; |
1121 | ||
e00b99c8 EZ |
1122 | #define N_ENV_VARS sizeof(dflt_envvars)/sizeof(dflt_envvars[0]) |
1123 | ||
1124 | /* We need to copy dflt_envvars[] and work on the copy because we | |
1125 | don't want the dumped Emacs to inherit the values of | |
1126 | environment variables we saw during dumping (which could be on | |
1127 | a different system). The defaults above must be left intact. */ | |
1128 | struct env_entry env_vars[N_ENV_VARS]; | |
1129 | ||
1130 | for (i = 0; i < N_ENV_VARS; i++) | |
1131 | env_vars[i] = dflt_envvars[i]; | |
1132 | ||
2d5324c5 JR |
1133 | /* For backwards compatibility, check if a .emacs file exists in C:/ |
1134 | If not, then we can try to default to the appdata directory under the | |
1135 | user's profile, which is more likely to be writable. */ | |
1136 | if (stat ("C:/.emacs", &ignored) < 0) | |
1137 | { | |
1138 | HRESULT profile_result; | |
1139 | /* Dynamically load ShGetFolderPath, as it won't exist on versions | |
1140 | of Windows 95 and NT4 that have not been updated to include | |
1141 | MSIE 5. Also we don't link with shell32.dll by default. */ | |
1142 | HMODULE shell32_dll; | |
1143 | ShGetFolderPath_fn get_folder_path; | |
1144 | shell32_dll = GetModuleHandle ("shell32.dll"); | |
1145 | get_folder_path = (ShGetFolderPath_fn) | |
1146 | GetProcAddress (shell32_dll, "SHGetFolderPathA"); | |
1147 | ||
1148 | if (get_folder_path != NULL) | |
1149 | { | |
1150 | profile_result = get_folder_path (NULL, CSIDL_APPDATA, NULL, | |
1151 | 0, default_home); | |
1152 | ||
1153 | /* If we can't get the appdata dir, revert to old behaviour. */ | |
1154 | if (profile_result == S_OK) | |
1155 | env_vars[0].def_value = default_home; | |
1156 | } | |
1157 | ||
1158 | /* Unload shell32.dll, it is not needed anymore. */ | |
1159 | FreeLibrary (shell32_dll); | |
1160 | } | |
1161 | ||
69fb0241 JR |
1162 | /* Get default locale info and use it for LANG. */ |
1163 | if (GetLocaleInfo (LOCALE_USER_DEFAULT, | |
1164 | LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP, | |
1165 | locale_name, sizeof (locale_name))) | |
1166 | { | |
e00b99c8 | 1167 | for (i = 0; i < N_ENV_VARS; i++) |
69fb0241 JR |
1168 | { |
1169 | if (strcmp (env_vars[i].name, "LANG") == 0) | |
1170 | { | |
1171 | env_vars[i].def_value = locale_name; | |
1172 | break; | |
1173 | } | |
1174 | } | |
1175 | } | |
1176 | ||
ca149beb AI |
1177 | #define SET_ENV_BUF_SIZE (4 * MAX_PATH) /* to cover EMACSLOADPATH */ |
1178 | ||
1179 | /* Treat emacs_dir specially: set it unconditionally based on our | |
1180 | location, if it appears that we are running from the bin subdir | |
1181 | of a standard installation. */ | |
1182 | { | |
1183 | char *p; | |
1184 | char modname[MAX_PATH]; | |
1185 | ||
1186 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) | |
1187 | abort (); | |
1188 | if ((p = strrchr (modname, '\\')) == NULL) | |
1189 | abort (); | |
1190 | *p = 0; | |
1191 | ||
1192 | if ((p = strrchr (modname, '\\')) && stricmp (p, "\\bin") == 0) | |
1193 | { | |
1194 | char buf[SET_ENV_BUF_SIZE]; | |
1195 | ||
1196 | *p = 0; | |
1197 | for (p = modname; *p; p++) | |
1198 | if (*p == '\\') *p = '/'; | |
177c0ea7 | 1199 | |
ca149beb | 1200 | _snprintf (buf, sizeof(buf)-1, "emacs_dir=%s", modname); |
a302c7ae | 1201 | _putenv (strdup (buf)); |
ca149beb | 1202 | } |
950090be JR |
1203 | /* Handle running emacs from the build directory: src/oo-spd/i386/ */ |
1204 | ||
1205 | /* FIXME: should use substring of get_emacs_configuration (). | |
1206 | But I don't think the Windows build supports alpha, mips etc | |
1207 | anymore, so have taken the easy option for now. */ | |
1208 | else if (p && stricmp (p, "\\i386") == 0) | |
1209 | { | |
1210 | *p = 0; | |
1211 | p = strrchr (modname, '\\'); | |
1212 | if (p != NULL) | |
1213 | { | |
1214 | *p = 0; | |
1215 | p = strrchr (modname, '\\'); | |
1216 | if (p && stricmp (p, "\\src") == 0) | |
1217 | { | |
1218 | char buf[SET_ENV_BUF_SIZE]; | |
1219 | ||
1220 | *p = 0; | |
1221 | for (p = modname; *p; p++) | |
1222 | if (*p == '\\') *p = '/'; | |
1223 | ||
1224 | _snprintf (buf, sizeof(buf)-1, "emacs_dir=%s", modname); | |
1225 | _putenv (strdup (buf)); | |
1226 | } | |
1227 | } | |
1228 | } | |
ca149beb AI |
1229 | } |
1230 | ||
e00b99c8 | 1231 | for (i = 0; i < N_ENV_VARS; i++) |
f332b293 | 1232 | { |
ca149beb | 1233 | if (!getenv (env_vars[i].name)) |
480b0c5b | 1234 | { |
ca149beb | 1235 | int dont_free = 0; |
480b0c5b | 1236 | |
aa5ee2a3 JB |
1237 | if ((lpval = w32_get_resource (env_vars[i].name, &dwType)) == NULL |
1238 | /* Also ignore empty environment variables. */ | |
1239 | || *lpval == 0) | |
ca149beb | 1240 | { |
14c71d8b | 1241 | if (lpval) xfree (lpval); |
ca149beb AI |
1242 | lpval = env_vars[i].def_value; |
1243 | dwType = REG_EXPAND_SZ; | |
1244 | dont_free = 1; | |
480b0c5b | 1245 | } |
ca149beb AI |
1246 | |
1247 | if (lpval) | |
480b0c5b | 1248 | { |
892eb237 | 1249 | char buf1[SET_ENV_BUF_SIZE], buf2[SET_ENV_BUF_SIZE]; |
ca149beb | 1250 | |
892eb237 EZ |
1251 | if (dwType == REG_EXPAND_SZ) |
1252 | ExpandEnvironmentStrings ((LPSTR) lpval, buf1, sizeof(buf1)); | |
ca149beb | 1253 | else if (dwType == REG_SZ) |
892eb237 EZ |
1254 | strcpy (buf1, lpval); |
1255 | if (dwType == REG_EXPAND_SZ || dwType == REG_SZ) | |
ca149beb | 1256 | { |
892eb237 EZ |
1257 | _snprintf (buf2, sizeof(buf2)-1, "%s=%s", env_vars[i].name, |
1258 | buf1); | |
1259 | _putenv (strdup (buf2)); | |
ca149beb | 1260 | } |
f332b293 | 1261 | |
ca149beb AI |
1262 | if (!dont_free) |
1263 | xfree (lpval); | |
1264 | } | |
480b0c5b GV |
1265 | } |
1266 | } | |
1267 | } | |
1268 | ||
75b08edb GV |
1269 | /* Rebuild system configuration to reflect invoking system. */ |
1270 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); | |
1271 | ||
76b3903d GV |
1272 | /* Another special case: on NT, the PATH variable is actually named |
1273 | "Path" although cmd.exe (perhaps NT itself) arranges for | |
1274 | environment variable lookup and setting to be case insensitive. | |
1275 | However, Emacs assumes a fully case sensitive environment, so we | |
1276 | need to change "Path" to "PATH" to match the expectations of | |
1277 | various elisp packages. We do this by the sneaky method of | |
1278 | modifying the string in the C runtime environ entry. | |
1279 | ||
1280 | The same applies to COMSPEC. */ | |
1281 | { | |
1282 | char ** envp; | |
1283 | ||
1284 | for (envp = environ; *envp; envp++) | |
1285 | if (_strnicmp (*envp, "PATH=", 5) == 0) | |
1286 | memcpy (*envp, "PATH=", 5); | |
1287 | else if (_strnicmp (*envp, "COMSPEC=", 8) == 0) | |
1288 | memcpy (*envp, "COMSPEC=", 8); | |
1289 | } | |
1290 | ||
1291 | /* Remember the initial working directory for getwd, then make the | |
1292 | real wd be the location of emacs.exe to avoid conflicts when | |
1293 | renaming or deleting directories. (We also don't call chdir when | |
1294 | running subprocesses for the same reason.) */ | |
1295 | if (!GetCurrentDirectory (MAXPATHLEN, startup_dir)) | |
1296 | abort (); | |
1297 | ||
1298 | { | |
1299 | char *p; | |
aa7b87b0 | 1300 | static char modname[MAX_PATH]; |
76b3903d GV |
1301 | |
1302 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) | |
1303 | abort (); | |
1304 | if ((p = strrchr (modname, '\\')) == NULL) | |
1305 | abort (); | |
1306 | *p = 0; | |
1307 | ||
1308 | SetCurrentDirectory (modname); | |
aa7b87b0 AI |
1309 | |
1310 | /* Ensure argv[0] has the full path to Emacs. */ | |
1311 | *p = '\\'; | |
1312 | argv[0] = modname; | |
76b3903d GV |
1313 | } |
1314 | ||
20af4831 JR |
1315 | /* Determine if there is a middle mouse button, to allow parse_button |
1316 | to decide whether right mouse events should be mouse-2 or | |
1317 | mouse-3. */ | |
e0c181dd | 1318 | w32_num_mouse_buttons = GetSystemMetrics (SM_CMOUSEBUTTONS); |
20af4831 | 1319 | |
480b0c5b GV |
1320 | init_user_info (); |
1321 | } | |
1322 | ||
bf794306 EZ |
1323 | char * |
1324 | emacs_root_dir (void) | |
1325 | { | |
1326 | static char root_dir[FILENAME_MAX]; | |
1327 | const char *p; | |
1328 | ||
1329 | p = getenv ("emacs_dir"); | |
1330 | if (p == NULL) | |
1331 | abort (); | |
1332 | strcpy (root_dir, p); | |
1333 | root_dir[parse_root (root_dir, NULL)] = '\0'; | |
1334 | dostounix_filename (root_dir); | |
1335 | return root_dir; | |
1336 | } | |
1337 | ||
480b0c5b GV |
1338 | /* We don't have scripts to automatically determine the system configuration |
1339 | for Emacs before it's compiled, and we don't want to have to make the | |
1340 | user enter it, so we define EMACS_CONFIGURATION to invoke this runtime | |
1341 | routine. */ | |
1342 | ||
480b0c5b GV |
1343 | char * |
1344 | get_emacs_configuration (void) | |
1345 | { | |
1346 | char *arch, *oem, *os; | |
c5247da2 | 1347 | int build_num; |
a302c7ae | 1348 | static char configuration_buffer[32]; |
480b0c5b GV |
1349 | |
1350 | /* Determine the processor type. */ | |
177c0ea7 | 1351 | switch (get_processor_type ()) |
480b0c5b GV |
1352 | { |
1353 | ||
1354 | #ifdef PROCESSOR_INTEL_386 | |
1355 | case PROCESSOR_INTEL_386: | |
1356 | case PROCESSOR_INTEL_486: | |
1357 | case PROCESSOR_INTEL_PENTIUM: | |
1358 | arch = "i386"; | |
1359 | break; | |
1360 | #endif | |
1361 | ||
480b0c5b GV |
1362 | #ifdef PROCESSOR_MIPS_R2000 |
1363 | case PROCESSOR_MIPS_R2000: | |
1364 | case PROCESSOR_MIPS_R3000: | |
1365 | case PROCESSOR_MIPS_R4000: | |
1366 | arch = "mips"; | |
1367 | break; | |
1368 | #endif | |
1369 | ||
1370 | #ifdef PROCESSOR_ALPHA_21064 | |
1371 | case PROCESSOR_ALPHA_21064: | |
1372 | arch = "alpha"; | |
1373 | break; | |
1374 | #endif | |
1375 | ||
1376 | default: | |
1377 | arch = "unknown"; | |
1378 | break; | |
f332b293 | 1379 | } |
480b0c5b | 1380 | |
a302c7ae AI |
1381 | /* Use the OEM field to reflect the compiler/library combination. */ |
1382 | #ifdef _MSC_VER | |
1383 | #define COMPILER_NAME "msvc" | |
1384 | #else | |
1385 | #ifdef __GNUC__ | |
1386 | #define COMPILER_NAME "mingw" | |
1387 | #else | |
1388 | #define COMPILER_NAME "unknown" | |
1389 | #endif | |
1390 | #endif | |
1391 | oem = COMPILER_NAME; | |
480b0c5b | 1392 | |
c5247da2 GV |
1393 | switch (osinfo_cache.dwPlatformId) { |
1394 | case VER_PLATFORM_WIN32_NT: | |
1395 | os = "nt"; | |
1396 | build_num = osinfo_cache.dwBuildNumber; | |
1397 | break; | |
1398 | case VER_PLATFORM_WIN32_WINDOWS: | |
1399 | if (osinfo_cache.dwMinorVersion == 0) { | |
1400 | os = "windows95"; | |
1401 | } else { | |
1402 | os = "windows98"; | |
1403 | } | |
1404 | build_num = LOWORD (osinfo_cache.dwBuildNumber); | |
1405 | break; | |
1406 | case VER_PLATFORM_WIN32s: | |
1407 | /* Not supported, should not happen. */ | |
1408 | os = "windows32s"; | |
1409 | build_num = LOWORD (osinfo_cache.dwBuildNumber); | |
1410 | break; | |
1411 | default: | |
1412 | os = "unknown"; | |
1413 | build_num = 0; | |
1414 | break; | |
1415 | } | |
1416 | ||
1417 | if (osinfo_cache.dwPlatformId == VER_PLATFORM_WIN32_NT) { | |
1418 | sprintf (configuration_buffer, "%s-%s-%s%d.%d.%d", arch, oem, os, | |
1419 | get_w32_major_version (), get_w32_minor_version (), build_num); | |
1420 | } else { | |
1421 | sprintf (configuration_buffer, "%s-%s-%s.%d", arch, oem, os, build_num); | |
1422 | } | |
480b0c5b | 1423 | |
480b0c5b | 1424 | return configuration_buffer; |
f332b293 GV |
1425 | } |
1426 | ||
a302c7ae AI |
1427 | char * |
1428 | get_emacs_configuration_options (void) | |
1429 | { | |
1430 | static char options_buffer[256]; | |
1431 | ||
1432 | /* Work out the effective configure options for this build. */ | |
1433 | #ifdef _MSC_VER | |
1434 | #define COMPILER_VERSION "--with-msvc (%d.%02d)", _MSC_VER / 100, _MSC_VER % 100 | |
1435 | #else | |
1436 | #ifdef __GNUC__ | |
1437 | #define COMPILER_VERSION "--with-gcc (%d.%d)", __GNUC__, __GNUC_MINOR__ | |
1438 | #else | |
1439 | #define COMPILER_VERSION "" | |
1440 | #endif | |
1441 | #endif | |
1442 | ||
1443 | sprintf (options_buffer, COMPILER_VERSION); | |
1444 | #ifdef EMACSDEBUG | |
1445 | strcat (options_buffer, " --no-opt"); | |
1446 | #endif | |
1447 | #ifdef USER_CFLAGS | |
1448 | strcat (options_buffer, " --cflags"); | |
1449 | strcat (options_buffer, USER_CFLAGS); | |
1450 | #endif | |
1451 | #ifdef USER_LDFLAGS | |
1452 | strcat (options_buffer, " --ldflags"); | |
1453 | strcat (options_buffer, USER_LDFLAGS); | |
1454 | #endif | |
1455 | return options_buffer; | |
1456 | } | |
1457 | ||
1458 | ||
35f0d482 KH |
1459 | #include <sys/timeb.h> |
1460 | ||
1461 | /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */ | |
177c0ea7 | 1462 | void |
35f0d482 KH |
1463 | gettimeofday (struct timeval *tv, struct timezone *tz) |
1464 | { | |
6e602566 | 1465 | struct _timeb tb; |
35f0d482 KH |
1466 | _ftime (&tb); |
1467 | ||
1468 | tv->tv_sec = tb.time; | |
1469 | tv->tv_usec = tb.millitm * 1000L; | |
177c0ea7 | 1470 | if (tz) |
35f0d482 KH |
1471 | { |
1472 | tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */ | |
1473 | tz->tz_dsttime = tb.dstflag; /* type of dst correction */ | |
1474 | } | |
1475 | } | |
35f0d482 | 1476 | |
480b0c5b | 1477 | /* ------------------------------------------------------------------------- */ |
fbd6baed | 1478 | /* IO support and wrapper functions for W32 API. */ |
480b0c5b | 1479 | /* ------------------------------------------------------------------------- */ |
95ed0025 | 1480 | |
480b0c5b | 1481 | /* Place a wrapper around the MSVC version of ctime. It returns NULL |
177c0ea7 | 1482 | on network directories, so we handle that case here. |
480b0c5b GV |
1483 | (Ulrich Leodolter, 1/11/95). */ |
1484 | char * | |
1485 | sys_ctime (const time_t *t) | |
1486 | { | |
1487 | char *str = (char *) ctime (t); | |
1488 | return (str ? str : "Sun Jan 01 00:00:00 1970"); | |
1489 | } | |
1490 | ||
1491 | /* Emulate sleep...we could have done this with a define, but that | |
1492 | would necessitate including windows.h in the files that used it. | |
1493 | This is much easier. */ | |
1494 | void | |
1495 | sys_sleep (int seconds) | |
1496 | { | |
1497 | Sleep (seconds * 1000); | |
1498 | } | |
1499 | ||
76b3903d | 1500 | /* Internal MSVC functions for low-level descriptor munging */ |
480b0c5b GV |
1501 | extern int __cdecl _set_osfhnd (int fd, long h); |
1502 | extern int __cdecl _free_osfhnd (int fd); | |
1503 | ||
1504 | /* parallel array of private info on file handles */ | |
1505 | filedesc fd_info [ MAXDESC ]; | |
1506 | ||
76b3903d GV |
1507 | typedef struct volume_info_data { |
1508 | struct volume_info_data * next; | |
1509 | ||
1510 | /* time when info was obtained */ | |
1511 | DWORD timestamp; | |
1512 | ||
1513 | /* actual volume info */ | |
1514 | char * root_dir; | |
480b0c5b GV |
1515 | DWORD serialnum; |
1516 | DWORD maxcomp; | |
1517 | DWORD flags; | |
76b3903d GV |
1518 | char * name; |
1519 | char * type; | |
1520 | } volume_info_data; | |
1521 | ||
1522 | /* Global referenced by various functions. */ | |
1523 | static volume_info_data volume_info; | |
1524 | ||
1525 | /* Vector to indicate which drives are local and fixed (for which cached | |
1526 | data never expires). */ | |
1527 | static BOOL fixed_drives[26]; | |
1528 | ||
1529 | /* Consider cached volume information to be stale if older than 10s, | |
1530 | at least for non-local drives. Info for fixed drives is never stale. */ | |
1531 | #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' ) | |
1532 | #define VOLINFO_STILL_VALID( root_dir, info ) \ | |
1533 | ( ( isalpha (root_dir[0]) && \ | |
1534 | fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \ | |
1535 | || GetTickCount () - info->timestamp < 10000 ) | |
1536 | ||
1537 | /* Cache support functions. */ | |
1538 | ||
1539 | /* Simple linked list with linear search is sufficient. */ | |
1540 | static volume_info_data *volume_cache = NULL; | |
1541 | ||
1542 | static volume_info_data * | |
1543 | lookup_volume_info (char * root_dir) | |
1544 | { | |
1545 | volume_info_data * info; | |
1546 | ||
1547 | for (info = volume_cache; info; info = info->next) | |
1548 | if (stricmp (info->root_dir, root_dir) == 0) | |
1549 | break; | |
1550 | return info; | |
1551 | } | |
1552 | ||
1553 | static void | |
1554 | add_volume_info (char * root_dir, volume_info_data * info) | |
1555 | { | |
a302c7ae | 1556 | info->root_dir = xstrdup (root_dir); |
76b3903d GV |
1557 | info->next = volume_cache; |
1558 | volume_cache = info; | |
1559 | } | |
1560 | ||
1561 | ||
1562 | /* Wrapper for GetVolumeInformation, which uses caching to avoid | |
1563 | performance penalty (~2ms on 486 for local drives, 7.5ms for local | |
1564 | cdrom drive, ~5-10ms or more for remote drives on LAN). */ | |
1565 | volume_info_data * | |
1566 | GetCachedVolumeInformation (char * root_dir) | |
1567 | { | |
1568 | volume_info_data * info; | |
1569 | char default_root[ MAX_PATH ]; | |
1570 | ||
1571 | /* NULL for root_dir means use root from current directory. */ | |
1572 | if (root_dir == NULL) | |
1573 | { | |
1574 | if (GetCurrentDirectory (MAX_PATH, default_root) == 0) | |
1575 | return NULL; | |
1576 | parse_root (default_root, &root_dir); | |
1577 | *root_dir = 0; | |
1578 | root_dir = default_root; | |
1579 | } | |
1580 | ||
1581 | /* Local fixed drives can be cached permanently. Removable drives | |
1582 | cannot be cached permanently, since the volume name and serial | |
1583 | number (if nothing else) can change. Remote drives should be | |
1584 | treated as if they are removable, since there is no sure way to | |
1585 | tell whether they are or not. Also, the UNC association of drive | |
1586 | letters mapped to remote volumes can be changed at any time (even | |
1587 | by other processes) without notice. | |
177c0ea7 | 1588 | |
76b3903d GV |
1589 | As a compromise, so we can benefit from caching info for remote |
1590 | volumes, we use a simple expiry mechanism to invalidate cache | |
1591 | entries that are more than ten seconds old. */ | |
1592 | ||
1593 | #if 0 | |
1594 | /* No point doing this, because WNetGetConnection is even slower than | |
1595 | GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW, | |
1596 | GetDriveType is about the only call of this type which does not | |
1597 | involve network access, and so is extremely quick). */ | |
1598 | ||
1599 | /* Map drive letter to UNC if remote. */ | |
1600 | if ( isalpha( root_dir[0] ) && !fixed[ DRIVE_INDEX( root_dir[0] ) ] ) | |
1601 | { | |
1602 | char remote_name[ 256 ]; | |
1603 | char drive[3] = { root_dir[0], ':' }; | |
1604 | ||
1605 | if (WNetGetConnection (drive, remote_name, sizeof (remote_name)) | |
1606 | == NO_ERROR) | |
1607 | /* do something */ ; | |
1608 | } | |
1609 | #endif | |
1610 | ||
1611 | info = lookup_volume_info (root_dir); | |
1612 | ||
1613 | if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info)) | |
1614 | { | |
1615 | char name[ 256 ]; | |
1616 | DWORD serialnum; | |
1617 | DWORD maxcomp; | |
1618 | DWORD flags; | |
1619 | char type[ 256 ]; | |
1620 | ||
1621 | /* Info is not cached, or is stale. */ | |
1622 | if (!GetVolumeInformation (root_dir, | |
1623 | name, sizeof (name), | |
1624 | &serialnum, | |
1625 | &maxcomp, | |
1626 | &flags, | |
1627 | type, sizeof (type))) | |
1628 | return NULL; | |
1629 | ||
1630 | /* Cache the volume information for future use, overwriting existing | |
1631 | entry if present. */ | |
1632 | if (info == NULL) | |
1633 | { | |
1634 | info = (volume_info_data *) xmalloc (sizeof (volume_info_data)); | |
1635 | add_volume_info (root_dir, info); | |
1636 | } | |
1637 | else | |
1638 | { | |
a302c7ae AI |
1639 | xfree (info->name); |
1640 | xfree (info->type); | |
76b3903d GV |
1641 | } |
1642 | ||
a302c7ae | 1643 | info->name = xstrdup (name); |
76b3903d GV |
1644 | info->serialnum = serialnum; |
1645 | info->maxcomp = maxcomp; | |
1646 | info->flags = flags; | |
a302c7ae | 1647 | info->type = xstrdup (type); |
76b3903d GV |
1648 | info->timestamp = GetTickCount (); |
1649 | } | |
1650 | ||
1651 | return info; | |
1652 | } | |
480b0c5b GV |
1653 | |
1654 | /* Get information on the volume where name is held; set path pointer to | |
1655 | start of pathname in name (past UNC header\volume header if present). */ | |
1656 | int | |
1657 | get_volume_info (const char * name, const char ** pPath) | |
95ed0025 | 1658 | { |
480b0c5b GV |
1659 | char temp[MAX_PATH]; |
1660 | char *rootname = NULL; /* default to current volume */ | |
76b3903d | 1661 | volume_info_data * info; |
480b0c5b GV |
1662 | |
1663 | if (name == NULL) | |
1664 | return FALSE; | |
1665 | ||
1666 | /* find the root name of the volume if given */ | |
1667 | if (isalpha (name[0]) && name[1] == ':') | |
1668 | { | |
1669 | rootname = temp; | |
1670 | temp[0] = *name++; | |
1671 | temp[1] = *name++; | |
1672 | temp[2] = '\\'; | |
1673 | temp[3] = 0; | |
1674 | } | |
1675 | else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1])) | |
95ed0025 | 1676 | { |
480b0c5b GV |
1677 | char *str = temp; |
1678 | int slashes = 4; | |
1679 | rootname = temp; | |
1680 | do | |
1681 | { | |
1682 | if (IS_DIRECTORY_SEP (*name) && --slashes == 0) | |
1683 | break; | |
1684 | *str++ = *name++; | |
1685 | } | |
1686 | while ( *name ); | |
1687 | ||
480b0c5b GV |
1688 | *str++ = '\\'; |
1689 | *str = 0; | |
95ed0025 | 1690 | } |
480b0c5b GV |
1691 | |
1692 | if (pPath) | |
1693 | *pPath = name; | |
177c0ea7 | 1694 | |
76b3903d GV |
1695 | info = GetCachedVolumeInformation (rootname); |
1696 | if (info != NULL) | |
95ed0025 | 1697 | { |
76b3903d GV |
1698 | /* Set global referenced by other functions. */ |
1699 | volume_info = *info; | |
480b0c5b | 1700 | return TRUE; |
95ed0025 | 1701 | } |
480b0c5b GV |
1702 | return FALSE; |
1703 | } | |
1704 | ||
1705 | /* Determine if volume is FAT format (ie. only supports short 8.3 | |
1706 | names); also set path pointer to start of pathname in name. */ | |
1707 | int | |
1708 | is_fat_volume (const char * name, const char ** pPath) | |
1709 | { | |
1710 | if (get_volume_info (name, pPath)) | |
1711 | return (volume_info.maxcomp == 12); | |
1712 | return FALSE; | |
1713 | } | |
1714 | ||
4d90eee4 | 1715 | /* Map filename to a valid 8.3 name if necessary. */ |
480b0c5b | 1716 | const char * |
fbd6baed | 1717 | map_w32_filename (const char * name, const char ** pPath) |
480b0c5b GV |
1718 | { |
1719 | static char shortname[MAX_PATH]; | |
1720 | char * str = shortname; | |
1721 | char c; | |
480b0c5b | 1722 | char * path; |
76b3903d | 1723 | const char * save_name = name; |
480b0c5b | 1724 | |
ca149beb AI |
1725 | if (strlen (name) >= MAX_PATH) |
1726 | { | |
1727 | /* Return a filename which will cause callers to fail. */ | |
1728 | strcpy (shortname, "?"); | |
1729 | return shortname; | |
1730 | } | |
1731 | ||
a302c7ae | 1732 | if (is_fat_volume (name, (const char **)&path)) /* truncate to 8.3 */ |
95ed0025 | 1733 | { |
480b0c5b GV |
1734 | register int left = 8; /* maximum number of chars in part */ |
1735 | register int extn = 0; /* extension added? */ | |
1736 | register int dots = 2; /* maximum number of dots allowed */ | |
1737 | ||
1738 | while (name < path) | |
1739 | *str++ = *name++; /* skip past UNC header */ | |
1740 | ||
1741 | while ((c = *name++)) | |
1742 | { | |
1743 | switch ( c ) | |
1744 | { | |
1745 | case '\\': | |
1746 | case '/': | |
1747 | *str++ = '\\'; | |
1748 | extn = 0; /* reset extension flags */ | |
1749 | dots = 2; /* max 2 dots */ | |
1750 | left = 8; /* max length 8 for main part */ | |
1751 | break; | |
1752 | case ':': | |
1753 | *str++ = ':'; | |
1754 | extn = 0; /* reset extension flags */ | |
1755 | dots = 2; /* max 2 dots */ | |
1756 | left = 8; /* max length 8 for main part */ | |
1757 | break; | |
1758 | case '.': | |
1759 | if ( dots ) | |
1760 | { | |
1761 | /* Convert path components of the form .xxx to _xxx, | |
1762 | but leave . and .. as they are. This allows .emacs | |
1763 | to be read as _emacs, for example. */ | |
1764 | ||
1765 | if (! *name || | |
1766 | *name == '.' || | |
1767 | IS_DIRECTORY_SEP (*name)) | |
1768 | { | |
1769 | *str++ = '.'; | |
1770 | dots--; | |
1771 | } | |
1772 | else | |
1773 | { | |
1774 | *str++ = '_'; | |
1775 | left--; | |
1776 | dots = 0; | |
1777 | } | |
1778 | } | |
1779 | else if ( !extn ) | |
1780 | { | |
1781 | *str++ = '.'; | |
1782 | extn = 1; /* we've got an extension */ | |
1783 | left = 3; /* 3 chars in extension */ | |
1784 | } | |
1785 | else | |
1786 | { | |
1787 | /* any embedded dots after the first are converted to _ */ | |
1788 | *str++ = '_'; | |
1789 | } | |
1790 | break; | |
1791 | case '~': | |
1792 | case '#': /* don't lose these, they're important */ | |
1793 | if ( ! left ) | |
1794 | str[-1] = c; /* replace last character of part */ | |
1795 | /* FALLTHRU */ | |
1796 | default: | |
1797 | if ( left ) | |
1798 | { | |
1799 | *str++ = tolower (c); /* map to lower case (looks nicer) */ | |
1800 | left--; | |
1801 | dots = 0; /* started a path component */ | |
1802 | } | |
1803 | break; | |
1804 | } | |
1805 | } | |
1806 | *str = '\0'; | |
fc85cb29 RS |
1807 | } |
1808 | else | |
1809 | { | |
1810 | strcpy (shortname, name); | |
1811 | unixtodos_filename (shortname); | |
95ed0025 | 1812 | } |
480b0c5b GV |
1813 | |
1814 | if (pPath) | |
76b3903d | 1815 | *pPath = shortname + (path - save_name); |
480b0c5b | 1816 | |
fc85cb29 | 1817 | return shortname; |
480b0c5b GV |
1818 | } |
1819 | ||
b3308d2e KH |
1820 | static int |
1821 | is_exec (const char * name) | |
1822 | { | |
1823 | char * p = strrchr (name, '.'); | |
1824 | return | |
1825 | (p != NULL | |
1826 | && (stricmp (p, ".exe") == 0 || | |
1827 | stricmp (p, ".com") == 0 || | |
1828 | stricmp (p, ".bat") == 0 || | |
1829 | stricmp (p, ".cmd") == 0)); | |
1830 | } | |
1831 | ||
177c0ea7 | 1832 | /* Emulate the Unix directory procedures opendir, closedir, |
76b3903d GV |
1833 | and readdir. We can't use the procedures supplied in sysdep.c, |
1834 | so we provide them here. */ | |
1835 | ||
1836 | struct direct dir_static; /* simulated directory contents */ | |
1837 | static HANDLE dir_find_handle = INVALID_HANDLE_VALUE; | |
1838 | static int dir_is_fat; | |
1839 | static char dir_pathname[MAXPATHLEN+1]; | |
1840 | static WIN32_FIND_DATA dir_find_data; | |
1841 | ||
9d3355d1 GV |
1842 | /* Support shares on a network resource as subdirectories of a read-only |
1843 | root directory. */ | |
1844 | static HANDLE wnet_enum_handle = INVALID_HANDLE_VALUE; | |
e0c181dd | 1845 | HANDLE open_unc_volume (const char *); |
9d3355d1 GV |
1846 | char *read_unc_volume (HANDLE, char *, int); |
1847 | void close_unc_volume (HANDLE); | |
1848 | ||
76b3903d GV |
1849 | DIR * |
1850 | opendir (char *filename) | |
1851 | { | |
1852 | DIR *dirp; | |
1853 | ||
1854 | /* Opening is done by FindFirstFile. However, a read is inherent to | |
1855 | this operation, so we defer the open until read time. */ | |
1856 | ||
76b3903d GV |
1857 | if (dir_find_handle != INVALID_HANDLE_VALUE) |
1858 | return NULL; | |
9d3355d1 GV |
1859 | if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
1860 | return NULL; | |
1861 | ||
1862 | if (is_unc_volume (filename)) | |
1863 | { | |
1864 | wnet_enum_handle = open_unc_volume (filename); | |
1865 | if (wnet_enum_handle == INVALID_HANDLE_VALUE) | |
1866 | return NULL; | |
1867 | } | |
1868 | ||
1869 | if (!(dirp = (DIR *) malloc (sizeof (DIR)))) | |
1870 | return NULL; | |
76b3903d GV |
1871 | |
1872 | dirp->dd_fd = 0; | |
1873 | dirp->dd_loc = 0; | |
1874 | dirp->dd_size = 0; | |
1875 | ||
1876 | strncpy (dir_pathname, map_w32_filename (filename, NULL), MAXPATHLEN); | |
1877 | dir_pathname[MAXPATHLEN] = '\0'; | |
1878 | dir_is_fat = is_fat_volume (filename, NULL); | |
1879 | ||
1880 | return dirp; | |
1881 | } | |
1882 | ||
1883 | void | |
1884 | closedir (DIR *dirp) | |
1885 | { | |
1886 | /* If we have a find-handle open, close it. */ | |
1887 | if (dir_find_handle != INVALID_HANDLE_VALUE) | |
1888 | { | |
1889 | FindClose (dir_find_handle); | |
1890 | dir_find_handle = INVALID_HANDLE_VALUE; | |
1891 | } | |
9d3355d1 GV |
1892 | else if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
1893 | { | |
1894 | close_unc_volume (wnet_enum_handle); | |
1895 | wnet_enum_handle = INVALID_HANDLE_VALUE; | |
1896 | } | |
76b3903d GV |
1897 | xfree ((char *) dirp); |
1898 | } | |
1899 | ||
1900 | struct direct * | |
1901 | readdir (DIR *dirp) | |
1902 | { | |
b07103dc EZ |
1903 | int downcase = !NILP (Vw32_downcase_file_names); |
1904 | ||
9d3355d1 GV |
1905 | if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
1906 | { | |
177c0ea7 JB |
1907 | if (!read_unc_volume (wnet_enum_handle, |
1908 | dir_find_data.cFileName, | |
9d3355d1 GV |
1909 | MAX_PATH)) |
1910 | return NULL; | |
1911 | } | |
76b3903d | 1912 | /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */ |
9d3355d1 | 1913 | else if (dir_find_handle == INVALID_HANDLE_VALUE) |
76b3903d GV |
1914 | { |
1915 | char filename[MAXNAMLEN + 3]; | |
1916 | int ln; | |
1917 | ||
1918 | strcpy (filename, dir_pathname); | |
1919 | ln = strlen (filename) - 1; | |
1920 | if (!IS_DIRECTORY_SEP (filename[ln])) | |
1921 | strcat (filename, "\\"); | |
1922 | strcat (filename, "*"); | |
1923 | ||
1924 | dir_find_handle = FindFirstFile (filename, &dir_find_data); | |
1925 | ||
1926 | if (dir_find_handle == INVALID_HANDLE_VALUE) | |
1927 | return NULL; | |
1928 | } | |
1929 | else | |
1930 | { | |
1931 | if (!FindNextFile (dir_find_handle, &dir_find_data)) | |
1932 | return NULL; | |
1933 | } | |
177c0ea7 | 1934 | |
76b3903d GV |
1935 | /* Emacs never uses this value, so don't bother making it match |
1936 | value returned by stat(). */ | |
1937 | dir_static.d_ino = 1; | |
177c0ea7 | 1938 | |
b07103dc EZ |
1939 | strcpy (dir_static.d_name, dir_find_data.cFileName); |
1940 | ||
1941 | /* If the file name in cFileName[] includes `?' characters, it means | |
1942 | the original file name used characters that cannot be represented | |
1943 | by the current ANSI codepage. To avoid total lossage, retrieve | |
1944 | the short 8+3 alias of the long file name. */ | |
1945 | if (_mbspbrk (dir_static.d_name, "?")) | |
1946 | { | |
1947 | strcpy (dir_static.d_name, dir_find_data.cAlternateFileName); | |
1948 | downcase = 1; /* 8+3 aliases are returned in all caps */ | |
1949 | } | |
1950 | dir_static.d_namlen = strlen (dir_static.d_name); | |
76b3903d GV |
1951 | dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 + |
1952 | dir_static.d_namlen - dir_static.d_namlen % 4; | |
177c0ea7 | 1953 | |
192788d7 EZ |
1954 | /* If the file name in cFileName[] includes `?' characters, it means |
1955 | the original file name used characters that cannot be represented | |
1956 | by the current ANSI codepage. To avoid total lossage, retrieve | |
1957 | the short 8+3 alias of the long file name. */ | |
1958 | if (_mbspbrk (dir_find_data.cFileName, "?")) | |
1959 | { | |
1960 | strcpy (dir_static.d_name, dir_find_data.cAlternateFileName); | |
1961 | /* 8+3 aliases are returned in all caps, which could break | |
1962 | various alists that look at filenames' extensions. */ | |
1963 | downcase = 1; | |
1964 | } | |
1965 | else | |
1966 | strcpy (dir_static.d_name, dir_find_data.cFileName); | |
1967 | dir_static.d_namlen = strlen (dir_static.d_name); | |
76b3903d GV |
1968 | if (dir_is_fat) |
1969 | _strlwr (dir_static.d_name); | |
b07103dc | 1970 | else if (downcase) |
76b3903d GV |
1971 | { |
1972 | register char *p; | |
1973 | for (p = dir_static.d_name; *p; p++) | |
1974 | if (*p >= 'a' && *p <= 'z') | |
1975 | break; | |
1976 | if (!*p) | |
1977 | _strlwr (dir_static.d_name); | |
1978 | } | |
177c0ea7 | 1979 | |
76b3903d GV |
1980 | return &dir_static; |
1981 | } | |
1982 | ||
9d3355d1 | 1983 | HANDLE |
e0c181dd | 1984 | open_unc_volume (const char *path) |
9d3355d1 | 1985 | { |
177c0ea7 | 1986 | NETRESOURCE nr; |
9d3355d1 GV |
1987 | HANDLE henum; |
1988 | int result; | |
1989 | ||
177c0ea7 JB |
1990 | nr.dwScope = RESOURCE_GLOBALNET; |
1991 | nr.dwType = RESOURCETYPE_DISK; | |
1992 | nr.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER; | |
1993 | nr.dwUsage = RESOURCEUSAGE_CONTAINER; | |
1994 | nr.lpLocalName = NULL; | |
6e602566 | 1995 | nr.lpRemoteName = (LPSTR)map_w32_filename (path, NULL); |
177c0ea7 JB |
1996 | nr.lpComment = NULL; |
1997 | nr.lpProvider = NULL; | |
9d3355d1 | 1998 | |
177c0ea7 | 1999 | result = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, |
9d3355d1 GV |
2000 | RESOURCEUSAGE_CONNECTABLE, &nr, &henum); |
2001 | ||
2002 | if (result == NO_ERROR) | |
2003 | return henum; | |
2004 | else | |
2005 | return INVALID_HANDLE_VALUE; | |
2006 | } | |
2007 | ||
2008 | char * | |
2009 | read_unc_volume (HANDLE henum, char *readbuf, int size) | |
2010 | { | |
a302c7ae | 2011 | DWORD count; |
9d3355d1 | 2012 | int result; |
a302c7ae | 2013 | DWORD bufsize = 512; |
9d3355d1 GV |
2014 | char *buffer; |
2015 | char *ptr; | |
2016 | ||
2017 | count = 1; | |
2018 | buffer = alloca (bufsize); | |
2019 | result = WNetEnumResource (wnet_enum_handle, &count, buffer, &bufsize); | |
2020 | if (result != NO_ERROR) | |
2021 | return NULL; | |
2022 | ||
2023 | /* WNetEnumResource returns \\resource\share...skip forward to "share". */ | |
2024 | ptr = ((LPNETRESOURCE) buffer)->lpRemoteName; | |
2025 | ptr += 2; | |
2026 | while (*ptr && !IS_DIRECTORY_SEP (*ptr)) ptr++; | |
2027 | ptr++; | |
2028 | ||
2029 | strncpy (readbuf, ptr, size); | |
2030 | return readbuf; | |
2031 | } | |
2032 | ||
2033 | void | |
2034 | close_unc_volume (HANDLE henum) | |
2035 | { | |
2036 | if (henum != INVALID_HANDLE_VALUE) | |
2037 | WNetCloseEnum (henum); | |
2038 | } | |
2039 | ||
2040 | DWORD | |
e0c181dd | 2041 | unc_volume_file_attributes (const char *path) |
9d3355d1 GV |
2042 | { |
2043 | HANDLE henum; | |
2044 | DWORD attrs; | |
2045 | ||
2046 | henum = open_unc_volume (path); | |
2047 | if (henum == INVALID_HANDLE_VALUE) | |
2048 | return -1; | |
2049 | ||
2050 | attrs = FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY; | |
2051 | ||
2052 | close_unc_volume (henum); | |
2053 | ||
2054 | return attrs; | |
2055 | } | |
2056 | ||
302d7d54 JR |
2057 | /* Ensure a network connection is authenticated. */ |
2058 | static void | |
2059 | logon_network_drive (const char *path) | |
2060 | { | |
2061 | NETRESOURCE resource; | |
2062 | char share[MAX_PATH]; | |
2063 | int i, n_slashes; | |
40a339c8 JR |
2064 | char drive[4]; |
2065 | ||
2066 | sprintf (drive, "%c:\\", path[0]); | |
302d7d54 JR |
2067 | |
2068 | /* Only logon to networked drives. */ | |
40a339c8 JR |
2069 | if ((!IS_DIRECTORY_SEP (path[0]) || !IS_DIRECTORY_SEP (path[1])) |
2070 | && GetDriveType (drive) != DRIVE_REMOTE) | |
302d7d54 | 2071 | return; |
40a339c8 | 2072 | |
302d7d54 JR |
2073 | n_slashes = 2; |
2074 | strncpy (share, path, MAX_PATH); | |
2075 | /* Truncate to just server and share name. */ | |
2076 | for (i = 2; i < MAX_PATH; i++) | |
2077 | { | |
2078 | if (IS_DIRECTORY_SEP (share[i]) && ++n_slashes > 3) | |
2079 | { | |
2080 | share[i] = '\0'; | |
2081 | break; | |
2082 | } | |
2083 | } | |
2084 | ||
2085 | resource.dwType = RESOURCETYPE_DISK; | |
2086 | resource.lpLocalName = NULL; | |
2087 | resource.lpRemoteName = share; | |
2088 | resource.lpProvider = NULL; | |
2089 | ||
2090 | WNetAddConnection2 (&resource, NULL, NULL, CONNECT_INTERACTIVE); | |
2091 | } | |
480b0c5b GV |
2092 | |
2093 | /* Shadow some MSVC runtime functions to map requests for long filenames | |
2094 | to reasonable short names if necessary. This was originally added to | |
177c0ea7 | 2095 | permit running Emacs on NT 3.1 on a FAT partition, which doesn't support |
480b0c5b GV |
2096 | long file names. */ |
2097 | ||
2098 | int | |
2099 | sys_access (const char * path, int mode) | |
2100 | { | |
b3308d2e KH |
2101 | DWORD attributes; |
2102 | ||
2103 | /* MSVC implementation doesn't recognize D_OK. */ | |
2104 | path = map_w32_filename (path, NULL); | |
9d3355d1 GV |
2105 | if (is_unc_volume (path)) |
2106 | { | |
2107 | attributes = unc_volume_file_attributes (path); | |
2108 | if (attributes == -1) { | |
2109 | errno = EACCES; | |
2110 | return -1; | |
2111 | } | |
2112 | } | |
2113 | else if ((attributes = GetFileAttributes (path)) == -1) | |
b3308d2e KH |
2114 | { |
2115 | /* Should try mapping GetLastError to errno; for now just indicate | |
2116 | that path doesn't exist. */ | |
2117 | errno = EACCES; | |
2118 | return -1; | |
2119 | } | |
2120 | if ((mode & X_OK) != 0 && !is_exec (path)) | |
2121 | { | |
2122 | errno = EACCES; | |
2123 | return -1; | |
2124 | } | |
2125 | if ((mode & W_OK) != 0 && (attributes & FILE_ATTRIBUTE_READONLY) != 0) | |
2126 | { | |
2127 | errno = EACCES; | |
2128 | return -1; | |
2129 | } | |
2130 | if ((mode & D_OK) != 0 && (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0) | |
2131 | { | |
2132 | errno = EACCES; | |
2133 | return -1; | |
2134 | } | |
2135 | return 0; | |
480b0c5b GV |
2136 | } |
2137 | ||
2138 | int | |
2139 | sys_chdir (const char * path) | |
2140 | { | |
fbd6baed | 2141 | return _chdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2142 | } |
2143 | ||
2144 | int | |
2145 | sys_chmod (const char * path, int mode) | |
2146 | { | |
fbd6baed | 2147 | return _chmod (map_w32_filename (path, NULL), mode); |
480b0c5b GV |
2148 | } |
2149 | ||
2d5ab4bf EZ |
2150 | int |
2151 | sys_chown (const char *path, uid_t owner, gid_t group) | |
2152 | { | |
e3b88685 | 2153 | if (sys_chmod (path, S_IREAD) == -1) /* check if file exists */ |
2d5ab4bf EZ |
2154 | return -1; |
2155 | return 0; | |
2156 | } | |
2157 | ||
480b0c5b GV |
2158 | int |
2159 | sys_creat (const char * path, int mode) | |
2160 | { | |
fbd6baed | 2161 | return _creat (map_w32_filename (path, NULL), mode); |
480b0c5b GV |
2162 | } |
2163 | ||
2164 | FILE * | |
2165 | sys_fopen(const char * path, const char * mode) | |
2166 | { | |
2167 | int fd; | |
2168 | int oflag; | |
2169 | const char * mode_save = mode; | |
2170 | ||
2171 | /* Force all file handles to be non-inheritable. This is necessary to | |
2172 | ensure child processes don't unwittingly inherit handles that might | |
2173 | prevent future file access. */ | |
2174 | ||
2175 | if (mode[0] == 'r') | |
2176 | oflag = O_RDONLY; | |
2177 | else if (mode[0] == 'w' || mode[0] == 'a') | |
2178 | oflag = O_WRONLY | O_CREAT | O_TRUNC; | |
95ed0025 | 2179 | else |
480b0c5b GV |
2180 | return NULL; |
2181 | ||
2182 | /* Only do simplistic option parsing. */ | |
2183 | while (*++mode) | |
2184 | if (mode[0] == '+') | |
2185 | { | |
2186 | oflag &= ~(O_RDONLY | O_WRONLY); | |
2187 | oflag |= O_RDWR; | |
2188 | } | |
2189 | else if (mode[0] == 'b') | |
2190 | { | |
2191 | oflag &= ~O_TEXT; | |
2192 | oflag |= O_BINARY; | |
2193 | } | |
2194 | else if (mode[0] == 't') | |
2195 | { | |
2196 | oflag &= ~O_BINARY; | |
2197 | oflag |= O_TEXT; | |
2198 | } | |
2199 | else break; | |
2200 | ||
fbd6baed | 2201 | fd = _open (map_w32_filename (path, NULL), oflag | _O_NOINHERIT, 0644); |
480b0c5b GV |
2202 | if (fd < 0) |
2203 | return NULL; | |
2204 | ||
76b3903d | 2205 | return _fdopen (fd, mode_save); |
95ed0025 | 2206 | } |
480b0c5b | 2207 | |
76b3903d | 2208 | /* This only works on NTFS volumes, but is useful to have. */ |
480b0c5b | 2209 | int |
76b3903d | 2210 | sys_link (const char * old, const char * new) |
480b0c5b | 2211 | { |
76b3903d GV |
2212 | HANDLE fileh; |
2213 | int result = -1; | |
2214 | char oldname[MAX_PATH], newname[MAX_PATH]; | |
2215 | ||
2216 | if (old == NULL || new == NULL) | |
2217 | { | |
2218 | errno = ENOENT; | |
2219 | return -1; | |
2220 | } | |
2221 | ||
2222 | strcpy (oldname, map_w32_filename (old, NULL)); | |
2223 | strcpy (newname, map_w32_filename (new, NULL)); | |
2224 | ||
2225 | fileh = CreateFile (oldname, 0, 0, NULL, OPEN_EXISTING, | |
2226 | FILE_FLAG_BACKUP_SEMANTICS, NULL); | |
2227 | if (fileh != INVALID_HANDLE_VALUE) | |
2228 | { | |
2229 | int wlen; | |
2230 | ||
2231 | /* Confusingly, the "alternate" stream name field does not apply | |
2232 | when restoring a hard link, and instead contains the actual | |
2233 | stream data for the link (ie. the name of the link to create). | |
2234 | The WIN32_STREAM_ID structure before the cStreamName field is | |
2235 | the stream header, which is then immediately followed by the | |
2236 | stream data. */ | |
2237 | ||
2238 | struct { | |
2239 | WIN32_STREAM_ID wid; | |
2240 | WCHAR wbuffer[MAX_PATH]; /* extra space for link name */ | |
2241 | } data; | |
2242 | ||
2243 | wlen = MultiByteToWideChar (CP_ACP, MB_PRECOMPOSED, newname, -1, | |
2244 | data.wid.cStreamName, MAX_PATH); | |
2245 | if (wlen > 0) | |
2246 | { | |
2247 | LPVOID context = NULL; | |
2248 | DWORD wbytes = 0; | |
2249 | ||
2250 | data.wid.dwStreamId = BACKUP_LINK; | |
2251 | data.wid.dwStreamAttributes = 0; | |
2252 | data.wid.Size.LowPart = wlen * sizeof(WCHAR); | |
2253 | data.wid.Size.HighPart = 0; | |
2254 | data.wid.dwStreamNameSize = 0; | |
2255 | ||
2256 | if (BackupWrite (fileh, (LPBYTE)&data, | |
2257 | offsetof (WIN32_STREAM_ID, cStreamName) | |
2258 | + data.wid.Size.LowPart, | |
2259 | &wbytes, FALSE, FALSE, &context) | |
2260 | && BackupWrite (fileh, NULL, 0, &wbytes, TRUE, FALSE, &context)) | |
2261 | { | |
2262 | /* succeeded */ | |
2263 | result = 0; | |
2264 | } | |
2265 | else | |
2266 | { | |
2267 | /* Should try mapping GetLastError to errno; for now just | |
2268 | indicate a general error (eg. links not supported). */ | |
2269 | errno = EINVAL; // perhaps EMLINK? | |
2270 | } | |
2271 | } | |
2272 | ||
2273 | CloseHandle (fileh); | |
2274 | } | |
2275 | else | |
2276 | errno = ENOENT; | |
2277 | ||
2278 | return result; | |
480b0c5b GV |
2279 | } |
2280 | ||
2281 | int | |
2282 | sys_mkdir (const char * path) | |
2283 | { | |
fbd6baed | 2284 | return _mkdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2285 | } |
2286 | ||
9d1778b1 RS |
2287 | /* Because of long name mapping issues, we need to implement this |
2288 | ourselves. Also, MSVC's _mktemp returns NULL when it can't generate | |
2289 | a unique name, instead of setting the input template to an empty | |
2290 | string. | |
2291 | ||
2292 | Standard algorithm seems to be use pid or tid with a letter on the | |
2293 | front (in place of the 6 X's) and cycle through the letters to find a | |
2294 | unique name. We extend that to allow any reasonable character as the | |
2295 | first of the 6 X's. */ | |
480b0c5b GV |
2296 | char * |
2297 | sys_mktemp (char * template) | |
2298 | { | |
9d1778b1 RS |
2299 | char * p; |
2300 | int i; | |
2301 | unsigned uid = GetCurrentThreadId (); | |
2302 | static char first_char[] = "abcdefghijklmnopqrstuvwyz0123456789!%-_@#"; | |
2303 | ||
2304 | if (template == NULL) | |
2305 | return NULL; | |
2306 | p = template + strlen (template); | |
2307 | i = 5; | |
2308 | /* replace up to the last 5 X's with uid in decimal */ | |
2309 | while (--p >= template && p[0] == 'X' && --i >= 0) | |
2310 | { | |
2311 | p[0] = '0' + uid % 10; | |
2312 | uid /= 10; | |
2313 | } | |
2314 | ||
2315 | if (i < 0 && p[0] == 'X') | |
2316 | { | |
2317 | i = 0; | |
2318 | do | |
2319 | { | |
2320 | int save_errno = errno; | |
2321 | p[0] = first_char[i]; | |
2322 | if (sys_access (template, 0) < 0) | |
2323 | { | |
2324 | errno = save_errno; | |
2325 | return template; | |
2326 | } | |
2327 | } | |
2328 | while (++i < sizeof (first_char)); | |
2329 | } | |
2330 | ||
2331 | /* Template is badly formed or else we can't generate a unique name, | |
2332 | so return empty string */ | |
2333 | template[0] = 0; | |
2334 | return template; | |
480b0c5b GV |
2335 | } |
2336 | ||
2337 | int | |
2338 | sys_open (const char * path, int oflag, int mode) | |
2339 | { | |
302f0b29 GM |
2340 | const char* mpath = map_w32_filename (path, NULL); |
2341 | /* Try to open file without _O_CREAT, to be able to write to hidden | |
2342 | and system files. Force all file handles to be | |
2343 | non-inheritable. */ | |
2344 | int res = _open (mpath, (oflag & ~_O_CREAT) | _O_NOINHERIT, mode); | |
2345 | if (res >= 0) | |
2346 | return res; | |
2347 | return _open (mpath, oflag | _O_NOINHERIT, mode); | |
480b0c5b GV |
2348 | } |
2349 | ||
2350 | int | |
2351 | sys_rename (const char * oldname, const char * newname) | |
2352 | { | |
cfb5e855 | 2353 | BOOL result; |
b3308d2e | 2354 | char temp[MAX_PATH]; |
480b0c5b | 2355 | |
e9e23e23 | 2356 | /* MoveFile on Windows 95 doesn't correctly change the short file name |
5162ffce MB |
2357 | alias in a number of circumstances (it is not easy to predict when |
2358 | just by looking at oldname and newname, unfortunately). In these | |
2359 | cases, renaming through a temporary name avoids the problem. | |
2360 | ||
e9e23e23 | 2361 | A second problem on Windows 95 is that renaming through a temp name when |
5162ffce MB |
2362 | newname is uppercase fails (the final long name ends up in |
2363 | lowercase, although the short alias might be uppercase) UNLESS the | |
2364 | long temp name is not 8.3. | |
2365 | ||
e9e23e23 | 2366 | So, on Windows 95 we always rename through a temp name, and we make sure |
5162ffce | 2367 | the temp name has a long extension to ensure correct renaming. */ |
480b0c5b | 2368 | |
fbd6baed | 2369 | strcpy (temp, map_w32_filename (oldname, NULL)); |
480b0c5b | 2370 | |
76b3903d | 2371 | if (os_subtype == OS_WIN95) |
480b0c5b | 2372 | { |
b3308d2e | 2373 | char * o; |
480b0c5b | 2374 | char * p; |
b3308d2e KH |
2375 | int i = 0; |
2376 | ||
2377 | oldname = map_w32_filename (oldname, NULL); | |
2378 | if (o = strrchr (oldname, '\\')) | |
2379 | o++; | |
2380 | else | |
2381 | o = (char *) oldname; | |
480b0c5b | 2382 | |
480b0c5b GV |
2383 | if (p = strrchr (temp, '\\')) |
2384 | p++; | |
2385 | else | |
2386 | p = temp; | |
b3308d2e KH |
2387 | |
2388 | do | |
2389 | { | |
2390 | /* Force temp name to require a manufactured 8.3 alias - this | |
2391 | seems to make the second rename work properly. */ | |
f313ee82 | 2392 | sprintf (p, "_.%s.%u", o, i); |
b3308d2e | 2393 | i++; |
58f0cb7e | 2394 | result = rename (oldname, temp); |
b3308d2e KH |
2395 | } |
2396 | /* This loop must surely terminate! */ | |
cfb5e855 | 2397 | while (result < 0 && errno == EEXIST); |
58f0cb7e | 2398 | if (result < 0) |
480b0c5b GV |
2399 | return -1; |
2400 | } | |
2401 | ||
2402 | /* Emulate Unix behaviour - newname is deleted if it already exists | |
5162ffce | 2403 | (at least if it is a file; don't do this for directories). |
76b3903d | 2404 | |
b3308d2e KH |
2405 | Since we mustn't do this if we are just changing the case of the |
2406 | file name (we would end up deleting the file we are trying to | |
2407 | rename!), we let rename detect if the destination file already | |
2408 | exists - that way we avoid the possible pitfalls of trying to | |
2409 | determine ourselves whether two names really refer to the same | |
2410 | file, which is not always possible in the general case. (Consider | |
2411 | all the permutations of shared or subst'd drives, etc.) */ | |
2412 | ||
2413 | newname = map_w32_filename (newname, NULL); | |
eb9ea53f | 2414 | result = rename (temp, newname); |
b3308d2e KH |
2415 | |
2416 | if (result < 0 | |
cfb5e855 | 2417 | && errno == EEXIST |
b3308d2e KH |
2418 | && _chmod (newname, 0666) == 0 |
2419 | && _unlink (newname) == 0) | |
2420 | result = rename (temp, newname); | |
480b0c5b | 2421 | |
eb9ea53f | 2422 | return result; |
480b0c5b GV |
2423 | } |
2424 | ||
2425 | int | |
2426 | sys_rmdir (const char * path) | |
2427 | { | |
fbd6baed | 2428 | return _rmdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2429 | } |
2430 | ||
2431 | int | |
2432 | sys_unlink (const char * path) | |
2433 | { | |
16bb7578 GV |
2434 | path = map_w32_filename (path, NULL); |
2435 | ||
2436 | /* On Unix, unlink works without write permission. */ | |
2437 | _chmod (path, 0666); | |
2438 | return _unlink (path); | |
480b0c5b GV |
2439 | } |
2440 | ||
2441 | static FILETIME utc_base_ft; | |
2442 | static long double utc_base; | |
2443 | static int init = 0; | |
2444 | ||
2445 | static time_t | |
2446 | convert_time (FILETIME ft) | |
2447 | { | |
2448 | long double ret; | |
2449 | ||
2450 | if (!init) | |
2451 | { | |
2452 | /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
2453 | SYSTEMTIME st; | |
2454 | ||
2455 | st.wYear = 1970; | |
2456 | st.wMonth = 1; | |
2457 | st.wDay = 1; | |
2458 | st.wHour = 0; | |
2459 | st.wMinute = 0; | |
2460 | st.wSecond = 0; | |
2461 | st.wMilliseconds = 0; | |
2462 | ||
2463 | SystemTimeToFileTime (&st, &utc_base_ft); | |
2464 | utc_base = (long double) utc_base_ft.dwHighDateTime | |
69b72317 | 2465 | * 4096.0L * 1024.0L * 1024.0L + utc_base_ft.dwLowDateTime; |
480b0c5b GV |
2466 | init = 1; |
2467 | } | |
2468 | ||
2469 | if (CompareFileTime (&ft, &utc_base_ft) < 0) | |
2470 | return 0; | |
2471 | ||
69b72317 EZ |
2472 | ret = (long double) ft.dwHighDateTime |
2473 | * 4096.0L * 1024.0L * 1024.0L + ft.dwLowDateTime; | |
480b0c5b | 2474 | ret -= utc_base; |
69b72317 | 2475 | return (time_t) (ret * 1e-7L); |
480b0c5b GV |
2476 | } |
2477 | ||
480b0c5b GV |
2478 | void |
2479 | convert_from_time_t (time_t time, FILETIME * pft) | |
2480 | { | |
2481 | long double tmp; | |
2482 | ||
2483 | if (!init) | |
2484 | { | |
2485 | /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
2486 | SYSTEMTIME st; | |
2487 | ||
2488 | st.wYear = 1970; | |
2489 | st.wMonth = 1; | |
2490 | st.wDay = 1; | |
2491 | st.wHour = 0; | |
2492 | st.wMinute = 0; | |
2493 | st.wSecond = 0; | |
2494 | st.wMilliseconds = 0; | |
2495 | ||
2496 | SystemTimeToFileTime (&st, &utc_base_ft); | |
2497 | utc_base = (long double) utc_base_ft.dwHighDateTime | |
2498 | * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime; | |
2499 | init = 1; | |
2500 | } | |
2501 | ||
2502 | /* time in 100ns units since 1-Jan-1601 */ | |
2503 | tmp = (long double) time * 1e7 + utc_base; | |
2504 | pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024)); | |
16bb7578 | 2505 | pft->dwLowDateTime = (DWORD) (tmp - (4096.0 * 1024 * 1024) * pft->dwHighDateTime); |
480b0c5b | 2506 | } |
480b0c5b | 2507 | |
76b3903d GV |
2508 | #if 0 |
2509 | /* No reason to keep this; faking inode values either by hashing or even | |
2510 | using the file index from GetInformationByHandle, is not perfect and | |
2511 | so by default Emacs doesn't use the inode values on Windows. | |
2512 | Instead, we now determine file-truename correctly (except for | |
2513 | possible drive aliasing etc). */ | |
2514 | ||
2515 | /* Modified version of "PJW" algorithm (see the "Dragon" compiler book). */ | |
480b0c5b | 2516 | static unsigned |
76b3903d | 2517 | hashval (const unsigned char * str) |
480b0c5b GV |
2518 | { |
2519 | unsigned h = 0; | |
480b0c5b GV |
2520 | while (*str) |
2521 | { | |
2522 | h = (h << 4) + *str++; | |
76b3903d | 2523 | h ^= (h >> 28); |
480b0c5b GV |
2524 | } |
2525 | return h; | |
2526 | } | |
2527 | ||
2528 | /* Return the hash value of the canonical pathname, excluding the | |
2529 | drive/UNC header, to get a hopefully unique inode number. */ | |
76b3903d | 2530 | static DWORD |
480b0c5b GV |
2531 | generate_inode_val (const char * name) |
2532 | { | |
2533 | char fullname[ MAX_PATH ]; | |
2534 | char * p; | |
2535 | unsigned hash; | |
2536 | ||
76b3903d GV |
2537 | /* Get the truly canonical filename, if it exists. (Note: this |
2538 | doesn't resolve aliasing due to subst commands, or recognise hard | |
2539 | links. */ | |
2540 | if (!w32_get_long_filename ((char *)name, fullname, MAX_PATH)) | |
2541 | abort (); | |
2542 | ||
2543 | parse_root (fullname, &p); | |
fbd6baed | 2544 | /* Normal W32 filesystems are still case insensitive. */ |
480b0c5b | 2545 | _strlwr (p); |
76b3903d | 2546 | return hashval (p); |
480b0c5b GV |
2547 | } |
2548 | ||
76b3903d GV |
2549 | #endif |
2550 | ||
480b0c5b GV |
2551 | /* MSVC stat function can't cope with UNC names and has other bugs, so |
2552 | replace it with our own. This also allows us to calculate consistent | |
2553 | inode values without hacks in the main Emacs code. */ | |
2554 | int | |
2555 | stat (const char * path, struct stat * buf) | |
2556 | { | |
eb9ea53f | 2557 | char *name, *r; |
480b0c5b GV |
2558 | WIN32_FIND_DATA wfd; |
2559 | HANDLE fh; | |
e3b88685 | 2560 | unsigned __int64 fake_inode; |
480b0c5b GV |
2561 | int permission; |
2562 | int len; | |
2563 | int rootdir = FALSE; | |
2564 | ||
2565 | if (path == NULL || buf == NULL) | |
2566 | { | |
2567 | errno = EFAULT; | |
2568 | return -1; | |
2569 | } | |
2570 | ||
fbd6baed | 2571 | name = (char *) map_w32_filename (path, &path); |
22189f79 EZ |
2572 | /* Must be valid filename, no wild cards or other invalid |
2573 | characters. We use _mbspbrk to support multibyte strings that | |
2574 | might look to strpbrk as if they included literal *, ?, and other | |
2575 | characters mentioned below that are disallowed by Windows | |
2576 | filesystems. */ | |
2577 | if (_mbspbrk (name, "*?|<>\"")) | |
480b0c5b GV |
2578 | { |
2579 | errno = ENOENT; | |
2580 | return -1; | |
2581 | } | |
2582 | ||
eb9ea53f GV |
2583 | /* If name is "c:/.." or "/.." then stat "c:/" or "/". */ |
2584 | r = IS_DEVICE_SEP (name[1]) ? &name[2] : name; | |
2585 | if (IS_DIRECTORY_SEP (r[0]) && r[1] == '.' && r[2] == '.' && r[3] == '\0') | |
2586 | { | |
2587 | r[1] = r[2] = '\0'; | |
2588 | } | |
2589 | ||
480b0c5b GV |
2590 | /* Remove trailing directory separator, unless name is the root |
2591 | directory of a drive or UNC volume in which case ensure there | |
2592 | is a trailing separator. */ | |
2593 | len = strlen (name); | |
2594 | rootdir = (path >= name + len - 1 | |
2595 | && (IS_DIRECTORY_SEP (*path) || *path == 0)); | |
2596 | name = strcpy (alloca (len + 2), name); | |
2597 | ||
9d3355d1 GV |
2598 | if (is_unc_volume (name)) |
2599 | { | |
2600 | DWORD attrs = unc_volume_file_attributes (name); | |
2601 | ||
2602 | if (attrs == -1) | |
2603 | return -1; | |
2604 | ||
2605 | memset (&wfd, 0, sizeof (wfd)); | |
2606 | wfd.dwFileAttributes = attrs; | |
2607 | wfd.ftCreationTime = utc_base_ft; | |
2608 | wfd.ftLastAccessTime = utc_base_ft; | |
2609 | wfd.ftLastWriteTime = utc_base_ft; | |
2610 | strcpy (wfd.cFileName, name); | |
2611 | } | |
2612 | else if (rootdir) | |
480b0c5b GV |
2613 | { |
2614 | if (!IS_DIRECTORY_SEP (name[len-1])) | |
2615 | strcat (name, "\\"); | |
2616 | if (GetDriveType (name) < 2) | |
2617 | { | |
2618 | errno = ENOENT; | |
2619 | return -1; | |
2620 | } | |
2621 | memset (&wfd, 0, sizeof (wfd)); | |
2622 | wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY; | |
2623 | wfd.ftCreationTime = utc_base_ft; | |
2624 | wfd.ftLastAccessTime = utc_base_ft; | |
2625 | wfd.ftLastWriteTime = utc_base_ft; | |
2626 | strcpy (wfd.cFileName, name); | |
2627 | } | |
2628 | else | |
2629 | { | |
2630 | if (IS_DIRECTORY_SEP (name[len-1])) | |
2631 | name[len - 1] = 0; | |
76b3903d GV |
2632 | |
2633 | /* (This is hacky, but helps when doing file completions on | |
2634 | network drives.) Optimize by using information available from | |
2635 | active readdir if possible. */ | |
b19cc00c GV |
2636 | len = strlen (dir_pathname); |
2637 | if (IS_DIRECTORY_SEP (dir_pathname[len-1])) | |
2638 | len--; | |
76b3903d | 2639 | if (dir_find_handle != INVALID_HANDLE_VALUE |
b19cc00c | 2640 | && strnicmp (name, dir_pathname, len) == 0 |
76b3903d GV |
2641 | && IS_DIRECTORY_SEP (name[len]) |
2642 | && stricmp (name + len + 1, dir_static.d_name) == 0) | |
480b0c5b | 2643 | { |
76b3903d GV |
2644 | /* This was the last entry returned by readdir. */ |
2645 | wfd = dir_find_data; | |
2646 | } | |
2647 | else | |
2648 | { | |
513feaa5 | 2649 | logon_network_drive (name); |
302d7d54 | 2650 | |
76b3903d GV |
2651 | fh = FindFirstFile (name, &wfd); |
2652 | if (fh == INVALID_HANDLE_VALUE) | |
2653 | { | |
2654 | errno = ENOENT; | |
2655 | return -1; | |
2656 | } | |
2657 | FindClose (fh); | |
480b0c5b | 2658 | } |
480b0c5b GV |
2659 | } |
2660 | ||
93e0f0da | 2661 | if (!NILP (Vw32_get_true_file_attributes) |
bd735631 | 2662 | && !(EQ (Vw32_get_true_file_attributes, Qlocal) && |
ac0af113 | 2663 | GetDriveType (name) == DRIVE_FIXED) |
93e0f0da JR |
2664 | /* No access rights required to get info. */ |
2665 | && (fh = CreateFile (name, 0, 0, NULL, OPEN_EXISTING, | |
2666 | FILE_FLAG_BACKUP_SEMANTICS, NULL)) | |
2667 | != INVALID_HANDLE_VALUE) | |
480b0c5b | 2668 | { |
480b0c5b | 2669 | /* This is more accurate in terms of gettting the correct number |
aa5ee2a3 | 2670 | of links, but is quite slow (it is noticeable when Emacs is |
480b0c5b GV |
2671 | making a list of file name completions). */ |
2672 | BY_HANDLE_FILE_INFORMATION info; | |
2673 | ||
480b0c5b GV |
2674 | if (GetFileInformationByHandle (fh, &info)) |
2675 | { | |
480b0c5b | 2676 | buf->st_nlink = info.nNumberOfLinks; |
76b3903d GV |
2677 | /* Might as well use file index to fake inode values, but this |
2678 | is not guaranteed to be unique unless we keep a handle open | |
2679 | all the time (even then there are situations where it is | |
2680 | not unique). Reputedly, there are at most 48 bits of info | |
2681 | (on NTFS, presumably less on FAT). */ | |
e3b88685 EZ |
2682 | fake_inode = info.nFileIndexHigh; |
2683 | fake_inode <<= 32; | |
2684 | fake_inode += info.nFileIndexLow; | |
480b0c5b GV |
2685 | } |
2686 | else | |
2687 | { | |
01f31dfb AI |
2688 | buf->st_nlink = 1; |
2689 | fake_inode = 0; | |
2690 | } | |
2691 | ||
93e0f0da | 2692 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
01f31dfb | 2693 | { |
e3b88685 | 2694 | buf->st_mode = S_IFDIR; |
93e0f0da JR |
2695 | } |
2696 | else | |
2697 | { | |
2698 | switch (GetFileType (fh)) | |
2699 | { | |
2700 | case FILE_TYPE_DISK: | |
e3b88685 | 2701 | buf->st_mode = S_IFREG; |
93e0f0da JR |
2702 | break; |
2703 | case FILE_TYPE_PIPE: | |
e3b88685 | 2704 | buf->st_mode = S_IFIFO; |
93e0f0da JR |
2705 | break; |
2706 | case FILE_TYPE_CHAR: | |
2707 | case FILE_TYPE_UNKNOWN: | |
2708 | default: | |
e3b88685 | 2709 | buf->st_mode = S_IFCHR; |
93e0f0da | 2710 | } |
480b0c5b | 2711 | } |
01f31dfb | 2712 | CloseHandle (fh); |
76b3903d GV |
2713 | } |
2714 | else | |
2715 | { | |
2716 | /* Don't bother to make this information more accurate. */ | |
93e0f0da | 2717 | buf->st_mode = (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? |
e3b88685 | 2718 | S_IFDIR : S_IFREG; |
480b0c5b | 2719 | buf->st_nlink = 1; |
76b3903d GV |
2720 | fake_inode = 0; |
2721 | } | |
2722 | ||
2723 | #if 0 | |
2724 | /* Not sure if there is any point in this. */ | |
2725 | if (!NILP (Vw32_generate_fake_inodes)) | |
2726 | fake_inode = generate_inode_val (name); | |
2727 | else if (fake_inode == 0) | |
2728 | { | |
2729 | /* For want of something better, try to make everything unique. */ | |
2730 | static DWORD gen_num = 0; | |
2731 | fake_inode = ++gen_num; | |
480b0c5b | 2732 | } |
76b3903d GV |
2733 | #endif |
2734 | ||
2735 | /* MSVC defines _ino_t to be short; other libc's might not. */ | |
2736 | if (sizeof (buf->st_ino) == 2) | |
2737 | buf->st_ino = fake_inode ^ (fake_inode >> 16); | |
2738 | else | |
2739 | buf->st_ino = fake_inode; | |
480b0c5b GV |
2740 | |
2741 | /* consider files to belong to current user */ | |
07f7980a EZ |
2742 | buf->st_uid = dflt_passwd.pw_uid; |
2743 | buf->st_gid = dflt_passwd.pw_gid; | |
480b0c5b | 2744 | |
fbd6baed | 2745 | /* volume_info is set indirectly by map_w32_filename */ |
480b0c5b GV |
2746 | buf->st_dev = volume_info.serialnum; |
2747 | buf->st_rdev = volume_info.serialnum; | |
2748 | ||
480b0c5b GV |
2749 | |
2750 | buf->st_size = wfd.nFileSizeLow; | |
2751 | ||
2752 | /* Convert timestamps to Unix format. */ | |
2753 | buf->st_mtime = convert_time (wfd.ftLastWriteTime); | |
2754 | buf->st_atime = convert_time (wfd.ftLastAccessTime); | |
2755 | if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; | |
2756 | buf->st_ctime = convert_time (wfd.ftCreationTime); | |
2757 | if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; | |
2758 | ||
2759 | /* determine rwx permissions */ | |
2760 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
e3b88685 | 2761 | permission = S_IREAD; |
480b0c5b | 2762 | else |
e3b88685 | 2763 | permission = S_IREAD | S_IWRITE; |
177c0ea7 | 2764 | |
480b0c5b | 2765 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
e3b88685 | 2766 | permission |= S_IEXEC; |
b3308d2e | 2767 | else if (is_exec (name)) |
e3b88685 | 2768 | permission |= S_IEXEC; |
480b0c5b GV |
2769 | |
2770 | buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
2771 | ||
2772 | return 0; | |
2773 | } | |
2774 | ||
16bb7578 GV |
2775 | /* Provide fstat and utime as well as stat for consistent handling of |
2776 | file timestamps. */ | |
2777 | int | |
2778 | fstat (int desc, struct stat * buf) | |
2779 | { | |
2780 | HANDLE fh = (HANDLE) _get_osfhandle (desc); | |
2781 | BY_HANDLE_FILE_INFORMATION info; | |
e3b88685 | 2782 | unsigned __int64 fake_inode; |
16bb7578 GV |
2783 | int permission; |
2784 | ||
2785 | switch (GetFileType (fh) & ~FILE_TYPE_REMOTE) | |
2786 | { | |
2787 | case FILE_TYPE_DISK: | |
e3b88685 | 2788 | buf->st_mode = S_IFREG; |
16bb7578 GV |
2789 | if (!GetFileInformationByHandle (fh, &info)) |
2790 | { | |
2791 | errno = EACCES; | |
2792 | return -1; | |
2793 | } | |
2794 | break; | |
2795 | case FILE_TYPE_PIPE: | |
e3b88685 | 2796 | buf->st_mode = S_IFIFO; |
16bb7578 GV |
2797 | goto non_disk; |
2798 | case FILE_TYPE_CHAR: | |
2799 | case FILE_TYPE_UNKNOWN: | |
2800 | default: | |
e3b88685 | 2801 | buf->st_mode = S_IFCHR; |
16bb7578 GV |
2802 | non_disk: |
2803 | memset (&info, 0, sizeof (info)); | |
2804 | info.dwFileAttributes = 0; | |
2805 | info.ftCreationTime = utc_base_ft; | |
2806 | info.ftLastAccessTime = utc_base_ft; | |
2807 | info.ftLastWriteTime = utc_base_ft; | |
2808 | } | |
2809 | ||
2810 | if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
e3b88685 | 2811 | buf->st_mode = S_IFDIR; |
93e0f0da JR |
2812 | |
2813 | buf->st_nlink = info.nNumberOfLinks; | |
2814 | /* Might as well use file index to fake inode values, but this | |
2815 | is not guaranteed to be unique unless we keep a handle open | |
2816 | all the time (even then there are situations where it is | |
2817 | not unique). Reputedly, there are at most 48 bits of info | |
2818 | (on NTFS, presumably less on FAT). */ | |
e3b88685 EZ |
2819 | fake_inode = info.nFileIndexHigh; |
2820 | fake_inode <<= 32; | |
2821 | fake_inode += info.nFileIndexLow; | |
16bb7578 GV |
2822 | |
2823 | /* MSVC defines _ino_t to be short; other libc's might not. */ | |
2824 | if (sizeof (buf->st_ino) == 2) | |
2825 | buf->st_ino = fake_inode ^ (fake_inode >> 16); | |
2826 | else | |
2827 | buf->st_ino = fake_inode; | |
2828 | ||
2829 | /* consider files to belong to current user */ | |
07f7980a EZ |
2830 | buf->st_uid = dflt_passwd.pw_uid; |
2831 | buf->st_gid = dflt_passwd.pw_gid; | |
16bb7578 GV |
2832 | |
2833 | buf->st_dev = info.dwVolumeSerialNumber; | |
2834 | buf->st_rdev = info.dwVolumeSerialNumber; | |
2835 | ||
2836 | buf->st_size = info.nFileSizeLow; | |
2837 | ||
2838 | /* Convert timestamps to Unix format. */ | |
2839 | buf->st_mtime = convert_time (info.ftLastWriteTime); | |
2840 | buf->st_atime = convert_time (info.ftLastAccessTime); | |
2841 | if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; | |
2842 | buf->st_ctime = convert_time (info.ftCreationTime); | |
2843 | if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; | |
2844 | ||
2845 | /* determine rwx permissions */ | |
2846 | if (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
e3b88685 | 2847 | permission = S_IREAD; |
16bb7578 | 2848 | else |
e3b88685 | 2849 | permission = S_IREAD | S_IWRITE; |
177c0ea7 | 2850 | |
16bb7578 | 2851 | if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
e3b88685 | 2852 | permission |= S_IEXEC; |
16bb7578 GV |
2853 | else |
2854 | { | |
2855 | #if 0 /* no way of knowing the filename */ | |
2856 | char * p = strrchr (name, '.'); | |
2857 | if (p != NULL && | |
2858 | (stricmp (p, ".exe") == 0 || | |
2859 | stricmp (p, ".com") == 0 || | |
2860 | stricmp (p, ".bat") == 0 || | |
2861 | stricmp (p, ".cmd") == 0)) | |
e3b88685 | 2862 | permission |= S_IEXEC; |
16bb7578 GV |
2863 | #endif |
2864 | } | |
2865 | ||
2866 | buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
2867 | ||
2868 | return 0; | |
2869 | } | |
2870 | ||
2871 | int | |
2872 | utime (const char *name, struct utimbuf *times) | |
2873 | { | |
2874 | struct utimbuf deftime; | |
2875 | HANDLE fh; | |
2876 | FILETIME mtime; | |
2877 | FILETIME atime; | |
2878 | ||
2879 | if (times == NULL) | |
2880 | { | |
2881 | deftime.modtime = deftime.actime = time (NULL); | |
2882 | times = &deftime; | |
2883 | } | |
2884 | ||
2885 | /* Need write access to set times. */ | |
2886 | fh = CreateFile (name, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, | |
2887 | 0, OPEN_EXISTING, 0, NULL); | |
2888 | if (fh) | |
2889 | { | |
2890 | convert_from_time_t (times->actime, &atime); | |
2891 | convert_from_time_t (times->modtime, &mtime); | |
2892 | if (!SetFileTime (fh, NULL, &atime, &mtime)) | |
2893 | { | |
2894 | CloseHandle (fh); | |
2895 | errno = EACCES; | |
2896 | return -1; | |
2897 | } | |
2898 | CloseHandle (fh); | |
2899 | } | |
2900 | else | |
2901 | { | |
2902 | errno = EINVAL; | |
2903 | return -1; | |
2904 | } | |
2905 | return 0; | |
2906 | } | |
2907 | ||
480b0c5b GV |
2908 | #ifdef HAVE_SOCKETS |
2909 | ||
2910 | /* Wrappers for winsock functions to map between our file descriptors | |
2911 | and winsock's handles; also set h_errno for convenience. | |
2912 | ||
2913 | To allow Emacs to run on systems which don't have winsock support | |
2914 | installed, we dynamically link to winsock on startup if present, and | |
2915 | otherwise provide the minimum necessary functionality | |
2916 | (eg. gethostname). */ | |
2917 | ||
2918 | /* function pointers for relevant socket functions */ | |
2919 | int (PASCAL *pfn_WSAStartup) (WORD wVersionRequired, LPWSADATA lpWSAData); | |
2920 | void (PASCAL *pfn_WSASetLastError) (int iError); | |
2921 | int (PASCAL *pfn_WSAGetLastError) (void); | |
26fb7bc4 | 2922 | int (PASCAL *pfn_WSAEventSelect) (SOCKET s, HANDLE hEventObject, long lNetworkEvents); |
64570b36 KS |
2923 | HANDLE (PASCAL *pfn_WSACreateEvent) (void); |
2924 | int (PASCAL *pfn_WSACloseEvent) (HANDLE hEvent); | |
480b0c5b GV |
2925 | int (PASCAL *pfn_socket) (int af, int type, int protocol); |
2926 | int (PASCAL *pfn_bind) (SOCKET s, const struct sockaddr *addr, int namelen); | |
2927 | int (PASCAL *pfn_connect) (SOCKET s, const struct sockaddr *addr, int namelen); | |
2928 | int (PASCAL *pfn_ioctlsocket) (SOCKET s, long cmd, u_long *argp); | |
2929 | int (PASCAL *pfn_recv) (SOCKET s, char * buf, int len, int flags); | |
2930 | int (PASCAL *pfn_send) (SOCKET s, const char * buf, int len, int flags); | |
2931 | int (PASCAL *pfn_closesocket) (SOCKET s); | |
2932 | int (PASCAL *pfn_shutdown) (SOCKET s, int how); | |
2933 | int (PASCAL *pfn_WSACleanup) (void); | |
2934 | ||
2935 | u_short (PASCAL *pfn_htons) (u_short hostshort); | |
2936 | u_short (PASCAL *pfn_ntohs) (u_short netshort); | |
2937 | unsigned long (PASCAL *pfn_inet_addr) (const char * cp); | |
2938 | int (PASCAL *pfn_gethostname) (char * name, int namelen); | |
2939 | struct hostent * (PASCAL *pfn_gethostbyname) (const char * name); | |
2940 | struct servent * (PASCAL *pfn_getservbyname) (const char * name, const char * proto); | |
ecd270eb | 2941 | int (PASCAL *pfn_getpeername) (SOCKET s, struct sockaddr *addr, int * namelen); |
962955c5 JR |
2942 | int (PASCAL *pfn_setsockopt) (SOCKET s, int level, int optname, |
2943 | const char * optval, int optlen); | |
2944 | int (PASCAL *pfn_listen) (SOCKET s, int backlog); | |
2945 | int (PASCAL *pfn_getsockname) (SOCKET s, struct sockaddr * name, | |
2946 | int * namelen); | |
2947 | SOCKET (PASCAL *pfn_accept) (SOCKET s, struct sockaddr * addr, int * addrlen); | |
2948 | int (PASCAL *pfn_recvfrom) (SOCKET s, char * buf, int len, int flags, | |
2949 | struct sockaddr * from, int * fromlen); | |
2950 | int (PASCAL *pfn_sendto) (SOCKET s, const char * buf, int len, int flags, | |
2951 | const struct sockaddr * to, int tolen); | |
2952 | ||
f1614061 RS |
2953 | /* SetHandleInformation is only needed to make sockets non-inheritable. */ |
2954 | BOOL (WINAPI *pfn_SetHandleInformation) (HANDLE object, DWORD mask, DWORD flags); | |
2955 | #ifndef HANDLE_FLAG_INHERIT | |
2956 | #define HANDLE_FLAG_INHERIT 1 | |
2957 | #endif | |
480b0c5b | 2958 | |
f249a012 RS |
2959 | HANDLE winsock_lib; |
2960 | static int winsock_inuse; | |
480b0c5b | 2961 | |
f249a012 | 2962 | BOOL |
480b0c5b GV |
2963 | term_winsock (void) |
2964 | { | |
f249a012 | 2965 | if (winsock_lib != NULL && winsock_inuse == 0) |
480b0c5b | 2966 | { |
f249a012 RS |
2967 | /* Not sure what would cause WSAENETDOWN, or even if it can happen |
2968 | after WSAStartup returns successfully, but it seems reasonable | |
2969 | to allow unloading winsock anyway in that case. */ | |
2970 | if (pfn_WSACleanup () == 0 || | |
2971 | pfn_WSAGetLastError () == WSAENETDOWN) | |
2972 | { | |
2973 | if (FreeLibrary (winsock_lib)) | |
2974 | winsock_lib = NULL; | |
2975 | return TRUE; | |
2976 | } | |
480b0c5b | 2977 | } |
f249a012 | 2978 | return FALSE; |
480b0c5b GV |
2979 | } |
2980 | ||
f249a012 RS |
2981 | BOOL |
2982 | init_winsock (int load_now) | |
480b0c5b GV |
2983 | { |
2984 | WSADATA winsockData; | |
2985 | ||
f249a012 RS |
2986 | if (winsock_lib != NULL) |
2987 | return TRUE; | |
f1614061 RS |
2988 | |
2989 | pfn_SetHandleInformation = NULL; | |
2990 | pfn_SetHandleInformation | |
2991 | = (void *) GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
2992 | "SetHandleInformation"); | |
2993 | ||
64570b36 | 2994 | winsock_lib = LoadLibrary ("Ws2_32.dll"); |
480b0c5b GV |
2995 | |
2996 | if (winsock_lib != NULL) | |
2997 | { | |
2998 | /* dynamically link to socket functions */ | |
2999 | ||
3000 | #define LOAD_PROC(fn) \ | |
3001 | if ((pfn_##fn = (void *) GetProcAddress (winsock_lib, #fn)) == NULL) \ | |
3002 | goto fail; | |
3003 | ||
3004 | LOAD_PROC( WSAStartup ); | |
3005 | LOAD_PROC( WSASetLastError ); | |
3006 | LOAD_PROC( WSAGetLastError ); | |
26fb7bc4 | 3007 | LOAD_PROC( WSAEventSelect ); |
64570b36 KS |
3008 | LOAD_PROC( WSACreateEvent ); |
3009 | LOAD_PROC( WSACloseEvent ); | |
480b0c5b GV |
3010 | LOAD_PROC( socket ); |
3011 | LOAD_PROC( bind ); | |
3012 | LOAD_PROC( connect ); | |
3013 | LOAD_PROC( ioctlsocket ); | |
3014 | LOAD_PROC( recv ); | |
3015 | LOAD_PROC( send ); | |
3016 | LOAD_PROC( closesocket ); | |
3017 | LOAD_PROC( shutdown ); | |
3018 | LOAD_PROC( htons ); | |
3019 | LOAD_PROC( ntohs ); | |
3020 | LOAD_PROC( inet_addr ); | |
3021 | LOAD_PROC( gethostname ); | |
3022 | LOAD_PROC( gethostbyname ); | |
3023 | LOAD_PROC( getservbyname ); | |
ecd270eb | 3024 | LOAD_PROC( getpeername ); |
480b0c5b | 3025 | LOAD_PROC( WSACleanup ); |
962955c5 JR |
3026 | LOAD_PROC( setsockopt ); |
3027 | LOAD_PROC( listen ); | |
3028 | LOAD_PROC( getsockname ); | |
3029 | LOAD_PROC( accept ); | |
3030 | LOAD_PROC( recvfrom ); | |
3031 | LOAD_PROC( sendto ); | |
f249a012 RS |
3032 | #undef LOAD_PROC |
3033 | ||
480b0c5b GV |
3034 | /* specify version 1.1 of winsock */ |
3035 | if (pfn_WSAStartup (0x101, &winsockData) == 0) | |
3036 | { | |
f249a012 RS |
3037 | if (winsockData.wVersion != 0x101) |
3038 | goto fail; | |
3039 | ||
3040 | if (!load_now) | |
3041 | { | |
3042 | /* Report that winsock exists and is usable, but leave | |
3043 | socket functions disabled. I am assuming that calling | |
3044 | WSAStartup does not require any network interaction, | |
3045 | and in particular does not cause or require a dial-up | |
3046 | connection to be established. */ | |
3047 | ||
3048 | pfn_WSACleanup (); | |
3049 | FreeLibrary (winsock_lib); | |
3050 | winsock_lib = NULL; | |
3051 | } | |
3052 | winsock_inuse = 0; | |
3053 | return TRUE; | |
480b0c5b GV |
3054 | } |
3055 | ||
3056 | fail: | |
3057 | FreeLibrary (winsock_lib); | |
f249a012 | 3058 | winsock_lib = NULL; |
480b0c5b | 3059 | } |
f249a012 RS |
3060 | |
3061 | return FALSE; | |
480b0c5b GV |
3062 | } |
3063 | ||
3064 | ||
3065 | int h_errno = 0; | |
3066 | ||
3067 | /* function to set h_errno for compatability; map winsock error codes to | |
3068 | normal system codes where they overlap (non-overlapping definitions | |
3069 | are already in <sys/socket.h> */ | |
9bfb11f9 KS |
3070 | static void |
3071 | set_errno () | |
480b0c5b | 3072 | { |
f249a012 | 3073 | if (winsock_lib == NULL) |
480b0c5b GV |
3074 | h_errno = EINVAL; |
3075 | else | |
3076 | h_errno = pfn_WSAGetLastError (); | |
3077 | ||
3078 | switch (h_errno) | |
3079 | { | |
3080 | case WSAEACCES: h_errno = EACCES; break; | |
3081 | case WSAEBADF: h_errno = EBADF; break; | |
3082 | case WSAEFAULT: h_errno = EFAULT; break; | |
3083 | case WSAEINTR: h_errno = EINTR; break; | |
3084 | case WSAEINVAL: h_errno = EINVAL; break; | |
3085 | case WSAEMFILE: h_errno = EMFILE; break; | |
3086 | case WSAENAMETOOLONG: h_errno = ENAMETOOLONG; break; | |
3087 | case WSAENOTEMPTY: h_errno = ENOTEMPTY; break; | |
3088 | } | |
3089 | errno = h_errno; | |
3090 | } | |
3091 | ||
9bfb11f9 KS |
3092 | static void |
3093 | check_errno () | |
480b0c5b | 3094 | { |
f249a012 | 3095 | if (h_errno == 0 && winsock_lib != NULL) |
480b0c5b GV |
3096 | pfn_WSASetLastError (0); |
3097 | } | |
3098 | ||
d8fcc1b9 AI |
3099 | /* Extend strerror to handle the winsock-specific error codes. */ |
3100 | struct { | |
3101 | int errnum; | |
3102 | char * msg; | |
3103 | } _wsa_errlist[] = { | |
3104 | WSAEINTR , "Interrupted function call", | |
3105 | WSAEBADF , "Bad file descriptor", | |
3106 | WSAEACCES , "Permission denied", | |
3107 | WSAEFAULT , "Bad address", | |
3108 | WSAEINVAL , "Invalid argument", | |
3109 | WSAEMFILE , "Too many open files", | |
177c0ea7 | 3110 | |
d8fcc1b9 AI |
3111 | WSAEWOULDBLOCK , "Resource temporarily unavailable", |
3112 | WSAEINPROGRESS , "Operation now in progress", | |
3113 | WSAEALREADY , "Operation already in progress", | |
3114 | WSAENOTSOCK , "Socket operation on non-socket", | |
3115 | WSAEDESTADDRREQ , "Destination address required", | |
3116 | WSAEMSGSIZE , "Message too long", | |
3117 | WSAEPROTOTYPE , "Protocol wrong type for socket", | |
3118 | WSAENOPROTOOPT , "Bad protocol option", | |
3119 | WSAEPROTONOSUPPORT , "Protocol not supported", | |
3120 | WSAESOCKTNOSUPPORT , "Socket type not supported", | |
3121 | WSAEOPNOTSUPP , "Operation not supported", | |
3122 | WSAEPFNOSUPPORT , "Protocol family not supported", | |
3123 | WSAEAFNOSUPPORT , "Address family not supported by protocol family", | |
3124 | WSAEADDRINUSE , "Address already in use", | |
3125 | WSAEADDRNOTAVAIL , "Cannot assign requested address", | |
3126 | WSAENETDOWN , "Network is down", | |
3127 | WSAENETUNREACH , "Network is unreachable", | |
3128 | WSAENETRESET , "Network dropped connection on reset", | |
3129 | WSAECONNABORTED , "Software caused connection abort", | |
3130 | WSAECONNRESET , "Connection reset by peer", | |
3131 | WSAENOBUFS , "No buffer space available", | |
3132 | WSAEISCONN , "Socket is already connected", | |
3133 | WSAENOTCONN , "Socket is not connected", | |
3134 | WSAESHUTDOWN , "Cannot send after socket shutdown", | |
3135 | WSAETOOMANYREFS , "Too many references", /* not sure */ | |
3136 | WSAETIMEDOUT , "Connection timed out", | |
3137 | WSAECONNREFUSED , "Connection refused", | |
3138 | WSAELOOP , "Network loop", /* not sure */ | |
3139 | WSAENAMETOOLONG , "Name is too long", | |
3140 | WSAEHOSTDOWN , "Host is down", | |
3141 | WSAEHOSTUNREACH , "No route to host", | |
3142 | WSAENOTEMPTY , "Buffer not empty", /* not sure */ | |
3143 | WSAEPROCLIM , "Too many processes", | |
3144 | WSAEUSERS , "Too many users", /* not sure */ | |
3145 | WSAEDQUOT , "Double quote in host name", /* really not sure */ | |
3146 | WSAESTALE , "Data is stale", /* not sure */ | |
3147 | WSAEREMOTE , "Remote error", /* not sure */ | |
177c0ea7 | 3148 | |
d8fcc1b9 AI |
3149 | WSASYSNOTREADY , "Network subsystem is unavailable", |
3150 | WSAVERNOTSUPPORTED , "WINSOCK.DLL version out of range", | |
3151 | WSANOTINITIALISED , "Winsock not initialized successfully", | |
3152 | WSAEDISCON , "Graceful shutdown in progress", | |
3153 | #ifdef WSAENOMORE | |
3154 | WSAENOMORE , "No more operations allowed", /* not sure */ | |
3155 | WSAECANCELLED , "Operation cancelled", /* not sure */ | |
3156 | WSAEINVALIDPROCTABLE , "Invalid procedure table from service provider", | |
3157 | WSAEINVALIDPROVIDER , "Invalid service provider version number", | |
3158 | WSAEPROVIDERFAILEDINIT , "Unable to initialize a service provider", | |
aa5ee2a3 | 3159 | WSASYSCALLFAILURE , "System call failure", |
d8fcc1b9 AI |
3160 | WSASERVICE_NOT_FOUND , "Service not found", /* not sure */ |
3161 | WSATYPE_NOT_FOUND , "Class type not found", | |
3162 | WSA_E_NO_MORE , "No more resources available", /* really not sure */ | |
3163 | WSA_E_CANCELLED , "Operation already cancelled", /* really not sure */ | |
3164 | WSAEREFUSED , "Operation refused", /* not sure */ | |
3165 | #endif | |
177c0ea7 | 3166 | |
d8fcc1b9 AI |
3167 | WSAHOST_NOT_FOUND , "Host not found", |
3168 | WSATRY_AGAIN , "Authoritative host not found during name lookup", | |
3169 | WSANO_RECOVERY , "Non-recoverable error during name lookup", | |
3170 | WSANO_DATA , "Valid name, no data record of requested type", | |
3171 | ||
3172 | -1, NULL | |
3173 | }; | |
3174 | ||
3175 | char * | |
3176 | sys_strerror(int error_no) | |
3177 | { | |
3178 | int i; | |
3179 | static char unknown_msg[40]; | |
3180 | ||
a302c7ae AI |
3181 | if (error_no >= 0 && error_no < sys_nerr) |
3182 | return sys_errlist[error_no]; | |
d8fcc1b9 AI |
3183 | |
3184 | for (i = 0; _wsa_errlist[i].errnum >= 0; i++) | |
3185 | if (_wsa_errlist[i].errnum == error_no) | |
3186 | return _wsa_errlist[i].msg; | |
3187 | ||
3188 | sprintf(unknown_msg, "Unidentified error: %d", error_no); | |
3189 | return unknown_msg; | |
3190 | } | |
3191 | ||
480b0c5b GV |
3192 | /* [andrewi 3-May-96] I've had conflicting results using both methods, |
3193 | but I believe the method of keeping the socket handle separate (and | |
3194 | insuring it is not inheritable) is the correct one. */ | |
3195 | ||
3196 | //#define SOCK_REPLACE_HANDLE | |
3197 | ||
3198 | #ifdef SOCK_REPLACE_HANDLE | |
3199 | #define SOCK_HANDLE(fd) ((SOCKET) _get_osfhandle (fd)) | |
3200 | #else | |
3201 | #define SOCK_HANDLE(fd) ((SOCKET) fd_info[fd].hnd) | |
3202 | #endif | |
3203 | ||
962955c5 JR |
3204 | int socket_to_fd (SOCKET s); |
3205 | ||
480b0c5b GV |
3206 | int |
3207 | sys_socket(int af, int type, int protocol) | |
3208 | { | |
962955c5 | 3209 | SOCKET s; |
480b0c5b | 3210 | |
f249a012 | 3211 | if (winsock_lib == NULL) |
480b0c5b GV |
3212 | { |
3213 | h_errno = ENETDOWN; | |
3214 | return INVALID_SOCKET; | |
3215 | } | |
3216 | ||
3217 | check_errno (); | |
3218 | ||
3219 | /* call the real socket function */ | |
962955c5 | 3220 | s = pfn_socket (af, type, protocol); |
177c0ea7 | 3221 | |
480b0c5b | 3222 | if (s != INVALID_SOCKET) |
962955c5 | 3223 | return socket_to_fd (s); |
480b0c5b | 3224 | |
962955c5 JR |
3225 | set_errno (); |
3226 | return -1; | |
3227 | } | |
3228 | ||
3229 | /* Convert a SOCKET to a file descriptor. */ | |
3230 | int | |
3231 | socket_to_fd (SOCKET s) | |
3232 | { | |
3233 | int fd; | |
3234 | child_process * cp; | |
3235 | ||
3236 | /* Although under NT 3.5 _open_osfhandle will accept a socket | |
3237 | handle, if opened with SO_OPENTYPE == SO_SYNCHRONOUS_NONALERT, | |
3238 | that does not work under NT 3.1. However, we can get the same | |
3239 | effect by using a backdoor function to replace an existing | |
3240 | descriptor handle with the one we want. */ | |
3241 | ||
3242 | /* allocate a file descriptor (with appropriate flags) */ | |
3243 | fd = _open ("NUL:", _O_RDWR); | |
3244 | if (fd >= 0) | |
3245 | { | |
480b0c5b | 3246 | #ifdef SOCK_REPLACE_HANDLE |
962955c5 JR |
3247 | /* now replace handle to NUL with our socket handle */ |
3248 | CloseHandle ((HANDLE) _get_osfhandle (fd)); | |
3249 | _free_osfhnd (fd); | |
3250 | _set_osfhnd (fd, s); | |
3251 | /* setmode (fd, _O_BINARY); */ | |
480b0c5b | 3252 | #else |
962955c5 JR |
3253 | /* Make a non-inheritable copy of the socket handle. Note |
3254 | that it is possible that sockets aren't actually kernel | |
3255 | handles, which appears to be the case on Windows 9x when | |
3256 | the MS Proxy winsock client is installed. */ | |
3257 | { | |
3258 | /* Apparently there is a bug in NT 3.51 with some service | |
3259 | packs, which prevents using DuplicateHandle to make a | |
3260 | socket handle non-inheritable (causes WSACleanup to | |
3261 | hang). The work-around is to use SetHandleInformation | |
3262 | instead if it is available and implemented. */ | |
3263 | if (pfn_SetHandleInformation) | |
480b0c5b | 3264 | { |
962955c5 JR |
3265 | pfn_SetHandleInformation ((HANDLE) s, HANDLE_FLAG_INHERIT, 0); |
3266 | } | |
3267 | else | |
3268 | { | |
3269 | HANDLE parent = GetCurrentProcess (); | |
3270 | HANDLE new_s = INVALID_HANDLE_VALUE; | |
3271 | ||
3272 | if (DuplicateHandle (parent, | |
3273 | (HANDLE) s, | |
3274 | parent, | |
3275 | &new_s, | |
3276 | 0, | |
3277 | FALSE, | |
3278 | DUPLICATE_SAME_ACCESS)) | |
f1614061 | 3279 | { |
962955c5 JR |
3280 | /* It is possible that DuplicateHandle succeeds even |
3281 | though the socket wasn't really a kernel handle, | |
3282 | because a real handle has the same value. So | |
3283 | test whether the new handle really is a socket. */ | |
3284 | long nonblocking = 0; | |
3285 | if (pfn_ioctlsocket ((SOCKET) new_s, FIONBIO, &nonblocking) == 0) | |
ca149beb | 3286 | { |
962955c5 JR |
3287 | pfn_closesocket (s); |
3288 | s = (SOCKET) new_s; | |
3289 | } | |
3290 | else | |
3291 | { | |
3292 | CloseHandle (new_s); | |
3293 | } | |
177c0ea7 | 3294 | } |
480b0c5b | 3295 | } |
962955c5 JR |
3296 | } |
3297 | fd_info[fd].hnd = (HANDLE) s; | |
480b0c5b GV |
3298 | #endif |
3299 | ||
962955c5 JR |
3300 | /* set our own internal flags */ |
3301 | fd_info[fd].flags = FILE_SOCKET | FILE_BINARY | FILE_READ | FILE_WRITE; | |
480b0c5b | 3302 | |
962955c5 JR |
3303 | cp = new_child (); |
3304 | if (cp) | |
3305 | { | |
3306 | cp->fd = fd; | |
3307 | cp->status = STATUS_READ_ACKNOWLEDGED; | |
480b0c5b | 3308 | |
962955c5 JR |
3309 | /* attach child_process to fd_info */ |
3310 | if (fd_info[ fd ].cp != NULL) | |
3311 | { | |
3312 | DebPrint (("sys_socket: fd_info[%d] apparently in use!\n", fd)); | |
3313 | abort (); | |
480b0c5b GV |
3314 | } |
3315 | ||
962955c5 JR |
3316 | fd_info[ fd ].cp = cp; |
3317 | ||
3318 | /* success! */ | |
3319 | winsock_inuse++; /* count open sockets */ | |
3320 | return fd; | |
480b0c5b | 3321 | } |
480b0c5b | 3322 | |
962955c5 JR |
3323 | /* clean up */ |
3324 | _close (fd); | |
3325 | } | |
3326 | pfn_closesocket (s); | |
3327 | h_errno = EMFILE; | |
480b0c5b GV |
3328 | return -1; |
3329 | } | |
3330 | ||
3331 | ||
3332 | int | |
3333 | sys_bind (int s, const struct sockaddr * addr, int namelen) | |
3334 | { | |
f249a012 | 3335 | if (winsock_lib == NULL) |
480b0c5b GV |
3336 | { |
3337 | h_errno = ENOTSOCK; | |
3338 | return SOCKET_ERROR; | |
3339 | } | |
3340 | ||
3341 | check_errno (); | |
3342 | if (fd_info[s].flags & FILE_SOCKET) | |
3343 | { | |
3344 | int rc = pfn_bind (SOCK_HANDLE (s), addr, namelen); | |
3345 | if (rc == SOCKET_ERROR) | |
3346 | set_errno (); | |
3347 | return rc; | |
3348 | } | |
3349 | h_errno = ENOTSOCK; | |
3350 | return SOCKET_ERROR; | |
3351 | } | |
3352 | ||
3353 | ||
3354 | int | |
3355 | sys_connect (int s, const struct sockaddr * name, int namelen) | |
3356 | { | |
f249a012 | 3357 | if (winsock_lib == NULL) |
480b0c5b GV |
3358 | { |
3359 | h_errno = ENOTSOCK; | |
3360 | return SOCKET_ERROR; | |
3361 | } | |
3362 | ||
3363 | check_errno (); | |
3364 | if (fd_info[s].flags & FILE_SOCKET) | |
3365 | { | |
3366 | int rc = pfn_connect (SOCK_HANDLE (s), name, namelen); | |
3367 | if (rc == SOCKET_ERROR) | |
3368 | set_errno (); | |
3369 | return rc; | |
3370 | } | |
3371 | h_errno = ENOTSOCK; | |
3372 | return SOCKET_ERROR; | |
3373 | } | |
3374 | ||
3375 | u_short | |
3376 | sys_htons (u_short hostshort) | |
3377 | { | |
f249a012 | 3378 | return (winsock_lib != NULL) ? |
480b0c5b GV |
3379 | pfn_htons (hostshort) : hostshort; |
3380 | } | |
3381 | ||
3382 | u_short | |
3383 | sys_ntohs (u_short netshort) | |
3384 | { | |
f249a012 | 3385 | return (winsock_lib != NULL) ? |
480b0c5b GV |
3386 | pfn_ntohs (netshort) : netshort; |
3387 | } | |
3388 | ||
3389 | unsigned long | |
3390 | sys_inet_addr (const char * cp) | |
3391 | { | |
f249a012 | 3392 | return (winsock_lib != NULL) ? |
480b0c5b GV |
3393 | pfn_inet_addr (cp) : INADDR_NONE; |
3394 | } | |
3395 | ||
3396 | int | |
3397 | sys_gethostname (char * name, int namelen) | |
3398 | { | |
f249a012 | 3399 | if (winsock_lib != NULL) |
480b0c5b GV |
3400 | return pfn_gethostname (name, namelen); |
3401 | ||
3402 | if (namelen > MAX_COMPUTERNAME_LENGTH) | |
a302c7ae | 3403 | return !GetComputerName (name, (DWORD *)&namelen); |
480b0c5b GV |
3404 | |
3405 | h_errno = EFAULT; | |
3406 | return SOCKET_ERROR; | |
3407 | } | |
3408 | ||
3409 | struct hostent * | |
3410 | sys_gethostbyname(const char * name) | |
3411 | { | |
3412 | struct hostent * host; | |
3413 | ||
f249a012 | 3414 | if (winsock_lib == NULL) |
480b0c5b GV |
3415 | { |
3416 | h_errno = ENETDOWN; | |
3417 | return NULL; | |
3418 | } | |
3419 | ||
3420 | check_errno (); | |
3421 | host = pfn_gethostbyname (name); | |
3422 | if (!host) | |
3423 | set_errno (); | |
3424 | return host; | |
3425 | } | |
3426 | ||
3427 | struct servent * | |
3428 | sys_getservbyname(const char * name, const char * proto) | |
3429 | { | |
3430 | struct servent * serv; | |
3431 | ||
f249a012 | 3432 | if (winsock_lib == NULL) |
480b0c5b GV |
3433 | { |
3434 | h_errno = ENETDOWN; | |
3435 | return NULL; | |
3436 | } | |
3437 | ||
3438 | check_errno (); | |
3439 | serv = pfn_getservbyname (name, proto); | |
3440 | if (!serv) | |
3441 | set_errno (); | |
3442 | return serv; | |
3443 | } | |
3444 | ||
ecd270eb JR |
3445 | int |
3446 | sys_getpeername (int s, struct sockaddr *addr, int * namelen) | |
3447 | { | |
3448 | if (winsock_lib == NULL) | |
3449 | { | |
3450 | h_errno = ENETDOWN; | |
3451 | return SOCKET_ERROR; | |
3452 | } | |
3453 | ||
3454 | check_errno (); | |
3455 | if (fd_info[s].flags & FILE_SOCKET) | |
3456 | { | |
3457 | int rc = pfn_getpeername (SOCK_HANDLE (s), addr, namelen); | |
3458 | if (rc == SOCKET_ERROR) | |
3459 | set_errno (); | |
3460 | return rc; | |
3461 | } | |
3462 | h_errno = ENOTSOCK; | |
3463 | return SOCKET_ERROR; | |
3464 | } | |
3465 | ||
3466 | ||
380961a6 GV |
3467 | int |
3468 | sys_shutdown (int s, int how) | |
3469 | { | |
380961a6 GV |
3470 | if (winsock_lib == NULL) |
3471 | { | |
3472 | h_errno = ENETDOWN; | |
3473 | return SOCKET_ERROR; | |
3474 | } | |
3475 | ||
3476 | check_errno (); | |
3477 | if (fd_info[s].flags & FILE_SOCKET) | |
3478 | { | |
3479 | int rc = pfn_shutdown (SOCK_HANDLE (s), how); | |
962955c5 JR |
3480 | if (rc == SOCKET_ERROR) |
3481 | set_errno (); | |
3482 | return rc; | |
3483 | } | |
3484 | h_errno = ENOTSOCK; | |
3485 | return SOCKET_ERROR; | |
3486 | } | |
3487 | ||
3488 | int | |
a5a389bb | 3489 | sys_setsockopt (int s, int level, int optname, const void * optval, int optlen) |
962955c5 JR |
3490 | { |
3491 | if (winsock_lib == NULL) | |
3492 | { | |
3493 | h_errno = ENETDOWN; | |
3494 | return SOCKET_ERROR; | |
3495 | } | |
3496 | ||
3497 | check_errno (); | |
3498 | if (fd_info[s].flags & FILE_SOCKET) | |
3499 | { | |
3500 | int rc = pfn_setsockopt (SOCK_HANDLE (s), level, optname, | |
a5a389bb | 3501 | (const char *)optval, optlen); |
962955c5 JR |
3502 | if (rc == SOCKET_ERROR) |
3503 | set_errno (); | |
3504 | return rc; | |
3505 | } | |
3506 | h_errno = ENOTSOCK; | |
177c0ea7 | 3507 | return SOCKET_ERROR; |
962955c5 JR |
3508 | } |
3509 | ||
3510 | int | |
3511 | sys_listen (int s, int backlog) | |
3512 | { | |
3513 | if (winsock_lib == NULL) | |
3514 | { | |
3515 | h_errno = ENETDOWN; | |
3516 | return SOCKET_ERROR; | |
3517 | } | |
3518 | ||
3519 | check_errno (); | |
3520 | if (fd_info[s].flags & FILE_SOCKET) | |
3521 | { | |
3522 | int rc = pfn_listen (SOCK_HANDLE (s), backlog); | |
3523 | if (rc == SOCKET_ERROR) | |
3524 | set_errno (); | |
26fb7bc4 | 3525 | else |
64570b36 | 3526 | fd_info[s].flags |= FILE_LISTEN; |
962955c5 JR |
3527 | return rc; |
3528 | } | |
3529 | h_errno = ENOTSOCK; | |
177c0ea7 | 3530 | return SOCKET_ERROR; |
962955c5 JR |
3531 | } |
3532 | ||
3533 | int | |
3534 | sys_getsockname (int s, struct sockaddr * name, int * namelen) | |
3535 | { | |
3536 | if (winsock_lib == NULL) | |
3537 | { | |
3538 | h_errno = ENETDOWN; | |
3539 | return SOCKET_ERROR; | |
3540 | } | |
3541 | ||
3542 | check_errno (); | |
3543 | if (fd_info[s].flags & FILE_SOCKET) | |
3544 | { | |
3545 | int rc = pfn_getsockname (SOCK_HANDLE (s), name, namelen); | |
3546 | if (rc == SOCKET_ERROR) | |
3547 | set_errno (); | |
3548 | return rc; | |
3549 | } | |
3550 | h_errno = ENOTSOCK; | |
177c0ea7 | 3551 | return SOCKET_ERROR; |
962955c5 JR |
3552 | } |
3553 | ||
3554 | int | |
3555 | sys_accept (int s, struct sockaddr * addr, int * addrlen) | |
3556 | { | |
3557 | if (winsock_lib == NULL) | |
3558 | { | |
3559 | h_errno = ENETDOWN; | |
3560 | return -1; | |
3561 | } | |
3562 | ||
3563 | check_errno (); | |
26fb7bc4 | 3564 | if (fd_info[s].flags & FILE_LISTEN) |
962955c5 | 3565 | { |
a0ad1860 | 3566 | SOCKET t = pfn_accept (SOCK_HANDLE (s), addr, addrlen); |
64570b36 KS |
3567 | int fd = -1; |
3568 | if (t == INVALID_SOCKET) | |
3569 | set_errno (); | |
3570 | else | |
3571 | fd = socket_to_fd (t); | |
962955c5 | 3572 | |
64570b36 KS |
3573 | fd_info[s].cp->status = STATUS_READ_ACKNOWLEDGED; |
3574 | ResetEvent (fd_info[s].cp->char_avail); | |
3575 | return fd; | |
962955c5 JR |
3576 | } |
3577 | h_errno = ENOTSOCK; | |
3578 | return -1; | |
3579 | } | |
3580 | ||
3581 | int | |
3582 | sys_recvfrom (int s, char * buf, int len, int flags, | |
3583 | struct sockaddr * from, int * fromlen) | |
3584 | { | |
3585 | if (winsock_lib == NULL) | |
3586 | { | |
3587 | h_errno = ENETDOWN; | |
3588 | return SOCKET_ERROR; | |
3589 | } | |
3590 | ||
3591 | check_errno (); | |
3592 | if (fd_info[s].flags & FILE_SOCKET) | |
3593 | { | |
3594 | int rc = pfn_recvfrom (SOCK_HANDLE (s), buf, len, flags, from, fromlen); | |
3595 | if (rc == SOCKET_ERROR) | |
3596 | set_errno (); | |
3597 | return rc; | |
3598 | } | |
3599 | h_errno = ENOTSOCK; | |
3600 | return SOCKET_ERROR; | |
3601 | } | |
3602 | ||
3603 | int | |
3604 | sys_sendto (int s, const char * buf, int len, int flags, | |
3605 | const struct sockaddr * to, int tolen) | |
3606 | { | |
3607 | if (winsock_lib == NULL) | |
3608 | { | |
3609 | h_errno = ENETDOWN; | |
3610 | return SOCKET_ERROR; | |
3611 | } | |
3612 | ||
3613 | check_errno (); | |
3614 | if (fd_info[s].flags & FILE_SOCKET) | |
3615 | { | |
3616 | int rc = pfn_sendto (SOCK_HANDLE (s), buf, len, flags, to, tolen); | |
380961a6 GV |
3617 | if (rc == SOCKET_ERROR) |
3618 | set_errno (); | |
3619 | return rc; | |
3620 | } | |
3621 | h_errno = ENOTSOCK; | |
3622 | return SOCKET_ERROR; | |
3623 | } | |
3624 | ||
ecd270eb JR |
3625 | /* Windows does not have an fcntl function. Provide an implementation |
3626 | solely for making sockets non-blocking. */ | |
3627 | int | |
3628 | fcntl (int s, int cmd, int options) | |
3629 | { | |
3630 | if (winsock_lib == NULL) | |
3631 | { | |
3632 | h_errno = ENETDOWN; | |
3633 | return -1; | |
3634 | } | |
3635 | ||
3636 | check_errno (); | |
3637 | if (fd_info[s].flags & FILE_SOCKET) | |
3638 | { | |
3639 | if (cmd == F_SETFL && options == O_NDELAY) | |
3640 | { | |
3641 | unsigned long nblock = 1; | |
3642 | int rc = pfn_ioctlsocket (SOCK_HANDLE (s), FIONBIO, &nblock); | |
3643 | if (rc == SOCKET_ERROR) | |
3644 | set_errno(); | |
3645 | /* Keep track of the fact that we set this to non-blocking. */ | |
3646 | fd_info[s].flags |= FILE_NDELAY; | |
3647 | return rc; | |
3648 | } | |
3649 | else | |
3650 | { | |
3651 | h_errno = EINVAL; | |
3652 | return SOCKET_ERROR; | |
3653 | } | |
3654 | } | |
3655 | h_errno = ENOTSOCK; | |
3656 | return SOCKET_ERROR; | |
3657 | } | |
3658 | ||
480b0c5b GV |
3659 | #endif /* HAVE_SOCKETS */ |
3660 | ||
3661 | ||
3662 | /* Shadow main io functions: we need to handle pipes and sockets more | |
3663 | intelligently, and implement non-blocking mode as well. */ | |
3664 | ||
3665 | int | |
3666 | sys_close (int fd) | |
3667 | { | |
3668 | int rc; | |
3669 | ||
7559f399 | 3670 | if (fd < 0) |
480b0c5b GV |
3671 | { |
3672 | errno = EBADF; | |
3673 | return -1; | |
3674 | } | |
3675 | ||
7559f399 | 3676 | if (fd < MAXDESC && fd_info[fd].cp) |
480b0c5b GV |
3677 | { |
3678 | child_process * cp = fd_info[fd].cp; | |
3679 | ||
3680 | fd_info[fd].cp = NULL; | |
3681 | ||
3682 | if (CHILD_ACTIVE (cp)) | |
3683 | { | |
3684 | /* if last descriptor to active child_process then cleanup */ | |
3685 | int i; | |
3686 | for (i = 0; i < MAXDESC; i++) | |
3687 | { | |
3688 | if (i == fd) | |
3689 | continue; | |
3690 | if (fd_info[i].cp == cp) | |
3691 | break; | |
3692 | } | |
3693 | if (i == MAXDESC) | |
3694 | { | |
f249a012 | 3695 | #ifdef HAVE_SOCKETS |
480b0c5b GV |
3696 | if (fd_info[fd].flags & FILE_SOCKET) |
3697 | { | |
f249a012 RS |
3698 | #ifndef SOCK_REPLACE_HANDLE |
3699 | if (winsock_lib == NULL) abort (); | |
480b0c5b GV |
3700 | |
3701 | pfn_shutdown (SOCK_HANDLE (fd), 2); | |
3702 | rc = pfn_closesocket (SOCK_HANDLE (fd)); | |
f249a012 RS |
3703 | #endif |
3704 | winsock_inuse--; /* count open sockets */ | |
480b0c5b GV |
3705 | } |
3706 | #endif | |
3707 | delete_child (cp); | |
3708 | } | |
3709 | } | |
3710 | } | |
3711 | ||
3712 | /* Note that sockets do not need special treatment here (at least on | |
e9e23e23 | 3713 | NT and Windows 95 using the standard tcp/ip stacks) - it appears that |
480b0c5b GV |
3714 | closesocket is equivalent to CloseHandle, which is to be expected |
3715 | because socket handles are fully fledged kernel handles. */ | |
3716 | rc = _close (fd); | |
3717 | ||
7559f399 | 3718 | if (rc == 0 && fd < MAXDESC) |
480b0c5b GV |
3719 | fd_info[fd].flags = 0; |
3720 | ||
3721 | return rc; | |
3722 | } | |
3723 | ||
3724 | int | |
3725 | sys_dup (int fd) | |
3726 | { | |
3727 | int new_fd; | |
3728 | ||
3729 | new_fd = _dup (fd); | |
7559f399 | 3730 | if (new_fd >= 0 && new_fd < MAXDESC) |
480b0c5b GV |
3731 | { |
3732 | /* duplicate our internal info as well */ | |
3733 | fd_info[new_fd] = fd_info[fd]; | |
3734 | } | |
3735 | return new_fd; | |
3736 | } | |
3737 | ||
3738 | ||
3739 | int | |
3740 | sys_dup2 (int src, int dst) | |
3741 | { | |
3742 | int rc; | |
3743 | ||
3744 | if (dst < 0 || dst >= MAXDESC) | |
3745 | { | |
3746 | errno = EBADF; | |
3747 | return -1; | |
3748 | } | |
3749 | ||
3750 | /* make sure we close the destination first if it's a pipe or socket */ | |
3751 | if (src != dst && fd_info[dst].flags != 0) | |
3752 | sys_close (dst); | |
177c0ea7 | 3753 | |
480b0c5b GV |
3754 | rc = _dup2 (src, dst); |
3755 | if (rc == 0) | |
3756 | { | |
3757 | /* duplicate our internal info as well */ | |
3758 | fd_info[dst] = fd_info[src]; | |
3759 | } | |
3760 | return rc; | |
3761 | } | |
3762 | ||
480b0c5b GV |
3763 | /* Unix pipe() has only one arg */ |
3764 | int | |
3765 | sys_pipe (int * phandles) | |
3766 | { | |
3767 | int rc; | |
3768 | unsigned flags; | |
480b0c5b | 3769 | |
76b3903d GV |
3770 | /* make pipe handles non-inheritable; when we spawn a child, we |
3771 | replace the relevant handle with an inheritable one. Also put | |
3772 | pipes into binary mode; we will do text mode translation ourselves | |
3773 | if required. */ | |
3774 | rc = _pipe (phandles, 0, _O_NOINHERIT | _O_BINARY); | |
480b0c5b GV |
3775 | |
3776 | if (rc == 0) | |
3777 | { | |
cb72110d JR |
3778 | /* Protect against overflow, since Windows can open more handles than |
3779 | our fd_info array has room for. */ | |
3780 | if (phandles[0] >= MAXDESC || phandles[1] >= MAXDESC) | |
3781 | { | |
3782 | _close (phandles[0]); | |
3783 | _close (phandles[1]); | |
3784 | rc = -1; | |
3785 | } | |
3786 | else | |
3787 | { | |
3788 | flags = FILE_PIPE | FILE_READ | FILE_BINARY; | |
3789 | fd_info[phandles[0]].flags = flags; | |
480b0c5b | 3790 | |
cb72110d JR |
3791 | flags = FILE_PIPE | FILE_WRITE | FILE_BINARY; |
3792 | fd_info[phandles[1]].flags = flags; | |
3793 | } | |
480b0c5b GV |
3794 | } |
3795 | ||
3796 | return rc; | |
3797 | } | |
3798 | ||
f7554349 | 3799 | /* From ntproc.c */ |
78806724 | 3800 | extern int w32_pipe_read_delay; |
f7554349 | 3801 | |
480b0c5b GV |
3802 | /* Function to do blocking read of one byte, needed to implement |
3803 | select. It is only allowed on sockets and pipes. */ | |
3804 | int | |
3805 | _sys_read_ahead (int fd) | |
3806 | { | |
3807 | child_process * cp; | |
3808 | int rc; | |
3809 | ||
3810 | if (fd < 0 || fd >= MAXDESC) | |
3811 | return STATUS_READ_ERROR; | |
3812 | ||
3813 | cp = fd_info[fd].cp; | |
3814 | ||
3815 | if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY) | |
3816 | return STATUS_READ_ERROR; | |
3817 | ||
3818 | if ((fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET)) == 0 | |
3819 | || (fd_info[fd].flags & FILE_READ) == 0) | |
3820 | { | |
3821 | DebPrint (("_sys_read_ahead: internal error: fd %d is not a pipe or socket!\n", fd)); | |
3822 | abort (); | |
3823 | } | |
177c0ea7 | 3824 | |
480b0c5b | 3825 | cp->status = STATUS_READ_IN_PROGRESS; |
177c0ea7 | 3826 | |
480b0c5b | 3827 | if (fd_info[fd].flags & FILE_PIPE) |
f7554349 | 3828 | { |
f7554349 KH |
3829 | rc = _read (fd, &cp->chr, sizeof (char)); |
3830 | ||
3831 | /* Give subprocess time to buffer some more output for us before | |
e9e23e23 | 3832 | reporting that input is available; we need this because Windows 95 |
f7554349 KH |
3833 | connects DOS programs to pipes by making the pipe appear to be |
3834 | the normal console stdout - as a result most DOS programs will | |
3835 | write to stdout without buffering, ie. one character at a | |
fbd6baed | 3836 | time. Even some W32 programs do this - "dir" in a command |
f7554349 KH |
3837 | shell on NT is very slow if we don't do this. */ |
3838 | if (rc > 0) | |
3839 | { | |
78806724 | 3840 | int wait = w32_pipe_read_delay; |
f7554349 KH |
3841 | |
3842 | if (wait > 0) | |
3843 | Sleep (wait); | |
3844 | else if (wait < 0) | |
3845 | while (++wait <= 0) | |
3846 | /* Yield remainder of our time slice, effectively giving a | |
3847 | temporary priority boost to the child process. */ | |
3848 | Sleep (0); | |
3849 | } | |
3850 | } | |
480b0c5b GV |
3851 | #ifdef HAVE_SOCKETS |
3852 | else if (fd_info[fd].flags & FILE_SOCKET) | |
ecd270eb JR |
3853 | { |
3854 | unsigned long nblock = 0; | |
3855 | /* We always want this to block, so temporarily disable NDELAY. */ | |
3856 | if (fd_info[fd].flags & FILE_NDELAY) | |
3857 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
3858 | ||
3859 | rc = pfn_recv (SOCK_HANDLE (fd), &cp->chr, sizeof (char), 0); | |
3860 | ||
3861 | if (fd_info[fd].flags & FILE_NDELAY) | |
3862 | { | |
3863 | nblock = 1; | |
3864 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
3865 | } | |
3866 | } | |
480b0c5b | 3867 | #endif |
177c0ea7 | 3868 | |
480b0c5b GV |
3869 | if (rc == sizeof (char)) |
3870 | cp->status = STATUS_READ_SUCCEEDED; | |
3871 | else | |
3872 | cp->status = STATUS_READ_FAILED; | |
3873 | ||
3874 | return cp->status; | |
3875 | } | |
3876 | ||
9bfb11f9 KS |
3877 | int |
3878 | _sys_wait_accept (int fd) | |
64570b36 KS |
3879 | { |
3880 | HANDLE hEv; | |
3881 | child_process * cp; | |
3882 | int rc; | |
3883 | ||
3884 | if (fd < 0 || fd >= MAXDESC) | |
3885 | return STATUS_READ_ERROR; | |
3886 | ||
3887 | cp = fd_info[fd].cp; | |
3888 | ||
3889 | if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY) | |
3890 | return STATUS_READ_ERROR; | |
3891 | ||
3892 | cp->status = STATUS_READ_FAILED; | |
3893 | ||
3894 | hEv = pfn_WSACreateEvent (); | |
3895 | rc = pfn_WSAEventSelect (SOCK_HANDLE (fd), hEv, FD_ACCEPT); | |
3896 | if (rc != SOCKET_ERROR) | |
3897 | { | |
3898 | rc = WaitForSingleObject (hEv, INFINITE); | |
3899 | pfn_WSAEventSelect (SOCK_HANDLE (fd), NULL, 0); | |
64570b36 KS |
3900 | if (rc == WAIT_OBJECT_0) |
3901 | cp->status = STATUS_READ_SUCCEEDED; | |
3902 | } | |
7046f191 | 3903 | pfn_WSACloseEvent (hEv); |
64570b36 KS |
3904 | |
3905 | return cp->status; | |
3906 | } | |
3907 | ||
480b0c5b GV |
3908 | int |
3909 | sys_read (int fd, char * buffer, unsigned int count) | |
3910 | { | |
3911 | int nchars; | |
480b0c5b GV |
3912 | int to_read; |
3913 | DWORD waiting; | |
76b3903d | 3914 | char * orig_buffer = buffer; |
480b0c5b | 3915 | |
7559f399 | 3916 | if (fd < 0) |
480b0c5b GV |
3917 | { |
3918 | errno = EBADF; | |
3919 | return -1; | |
3920 | } | |
3921 | ||
7559f399 | 3922 | if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET)) |
480b0c5b GV |
3923 | { |
3924 | child_process *cp = fd_info[fd].cp; | |
3925 | ||
3926 | if ((fd_info[fd].flags & FILE_READ) == 0) | |
3927 | { | |
3928 | errno = EBADF; | |
3929 | return -1; | |
3930 | } | |
3931 | ||
76b3903d GV |
3932 | nchars = 0; |
3933 | ||
3934 | /* re-read CR carried over from last read */ | |
3935 | if (fd_info[fd].flags & FILE_LAST_CR) | |
3936 | { | |
3937 | if (fd_info[fd].flags & FILE_BINARY) abort (); | |
3938 | *buffer++ = 0x0d; | |
3939 | count--; | |
3940 | nchars++; | |
f52eb3ef | 3941 | fd_info[fd].flags &= ~FILE_LAST_CR; |
76b3903d GV |
3942 | } |
3943 | ||
480b0c5b GV |
3944 | /* presence of a child_process structure means we are operating in |
3945 | non-blocking mode - otherwise we just call _read directly. | |
3946 | Note that the child_process structure might be missing because | |
3947 | reap_subprocess has been called; in this case the pipe is | |
3948 | already broken, so calling _read on it is okay. */ | |
3949 | if (cp) | |
3950 | { | |
3951 | int current_status = cp->status; | |
3952 | ||
3953 | switch (current_status) | |
3954 | { | |
3955 | case STATUS_READ_FAILED: | |
3956 | case STATUS_READ_ERROR: | |
f52eb3ef GV |
3957 | /* report normal EOF if nothing in buffer */ |
3958 | if (nchars <= 0) | |
3959 | fd_info[fd].flags |= FILE_AT_EOF; | |
3960 | return nchars; | |
480b0c5b GV |
3961 | |
3962 | case STATUS_READ_READY: | |
3963 | case STATUS_READ_IN_PROGRESS: | |
3964 | DebPrint (("sys_read called when read is in progress\n")); | |
3965 | errno = EWOULDBLOCK; | |
3966 | return -1; | |
3967 | ||
3968 | case STATUS_READ_SUCCEEDED: | |
3969 | /* consume read-ahead char */ | |
3970 | *buffer++ = cp->chr; | |
3971 | count--; | |
76b3903d | 3972 | nchars++; |
480b0c5b GV |
3973 | cp->status = STATUS_READ_ACKNOWLEDGED; |
3974 | ResetEvent (cp->char_avail); | |
3975 | ||
3976 | case STATUS_READ_ACKNOWLEDGED: | |
3977 | break; | |
3978 | ||
3979 | default: | |
3980 | DebPrint (("sys_read: bad status %d\n", current_status)); | |
3981 | errno = EBADF; | |
3982 | return -1; | |
3983 | } | |
3984 | ||
3985 | if (fd_info[fd].flags & FILE_PIPE) | |
3986 | { | |
3987 | PeekNamedPipe ((HANDLE) _get_osfhandle (fd), NULL, 0, NULL, &waiting, NULL); | |
3988 | to_read = min (waiting, (DWORD) count); | |
f52eb3ef GV |
3989 | |
3990 | if (to_read > 0) | |
3991 | nchars += _read (fd, buffer, to_read); | |
480b0c5b GV |
3992 | } |
3993 | #ifdef HAVE_SOCKETS | |
3994 | else /* FILE_SOCKET */ | |
3995 | { | |
f249a012 | 3996 | if (winsock_lib == NULL) abort (); |
480b0c5b GV |
3997 | |
3998 | /* do the equivalent of a non-blocking read */ | |
3999 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONREAD, &waiting); | |
76b3903d | 4000 | if (waiting == 0 && nchars == 0) |
480b0c5b GV |
4001 | { |
4002 | h_errno = errno = EWOULDBLOCK; | |
4003 | return -1; | |
4004 | } | |
4005 | ||
480b0c5b GV |
4006 | if (waiting) |
4007 | { | |
4008 | /* always use binary mode for sockets */ | |
76b3903d GV |
4009 | int res = pfn_recv (SOCK_HANDLE (fd), buffer, count, 0); |
4010 | if (res == SOCKET_ERROR) | |
480b0c5b GV |
4011 | { |
4012 | DebPrint(("sys_read.recv failed with error %d on socket %ld\n", | |
4013 | pfn_WSAGetLastError (), SOCK_HANDLE (fd))); | |
76b3903d GV |
4014 | set_errno (); |
4015 | return -1; | |
480b0c5b | 4016 | } |
76b3903d | 4017 | nchars += res; |
480b0c5b GV |
4018 | } |
4019 | } | |
4020 | #endif | |
4021 | } | |
4022 | else | |
f52eb3ef GV |
4023 | { |
4024 | int nread = _read (fd, buffer, count); | |
4025 | if (nread >= 0) | |
4026 | nchars += nread; | |
4027 | else if (nchars == 0) | |
4028 | nchars = nread; | |
4029 | } | |
76b3903d | 4030 | |
f52eb3ef GV |
4031 | if (nchars <= 0) |
4032 | fd_info[fd].flags |= FILE_AT_EOF; | |
76b3903d | 4033 | /* Perform text mode translation if required. */ |
f52eb3ef | 4034 | else if ((fd_info[fd].flags & FILE_BINARY) == 0) |
76b3903d GV |
4035 | { |
4036 | nchars = crlf_to_lf (nchars, orig_buffer); | |
4037 | /* If buffer contains only CR, return that. To be absolutely | |
4038 | sure we should attempt to read the next char, but in | |
4039 | practice a CR to be followed by LF would not appear by | |
4040 | itself in the buffer. */ | |
4041 | if (nchars > 1 && orig_buffer[nchars - 1] == 0x0d) | |
4042 | { | |
4043 | fd_info[fd].flags |= FILE_LAST_CR; | |
4044 | nchars--; | |
4045 | } | |
76b3903d | 4046 | } |
480b0c5b GV |
4047 | } |
4048 | else | |
4049 | nchars = _read (fd, buffer, count); | |
4050 | ||
76b3903d | 4051 | return nchars; |
480b0c5b GV |
4052 | } |
4053 | ||
4054 | /* For now, don't bother with a non-blocking mode */ | |
4055 | int | |
4056 | sys_write (int fd, const void * buffer, unsigned int count) | |
4057 | { | |
4058 | int nchars; | |
4059 | ||
7559f399 | 4060 | if (fd < 0) |
480b0c5b GV |
4061 | { |
4062 | errno = EBADF; | |
4063 | return -1; | |
4064 | } | |
4065 | ||
7559f399 | 4066 | if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET)) |
76b3903d GV |
4067 | { |
4068 | if ((fd_info[fd].flags & FILE_WRITE) == 0) | |
4069 | { | |
4070 | errno = EBADF; | |
4071 | return -1; | |
4072 | } | |
4073 | ||
4074 | /* Perform text mode translation if required. */ | |
4075 | if ((fd_info[fd].flags & FILE_BINARY) == 0) | |
4076 | { | |
4077 | char * tmpbuf = alloca (count * 2); | |
4078 | unsigned char * src = (void *)buffer; | |
4079 | unsigned char * dst = tmpbuf; | |
4080 | int nbytes = count; | |
4081 | ||
4082 | while (1) | |
4083 | { | |
4084 | unsigned char *next; | |
4085 | /* copy next line or remaining bytes */ | |
4086 | next = _memccpy (dst, src, '\n', nbytes); | |
4087 | if (next) | |
4088 | { | |
4089 | /* copied one line ending with '\n' */ | |
4090 | int copied = next - dst; | |
4091 | nbytes -= copied; | |
4092 | src += copied; | |
4093 | /* insert '\r' before '\n' */ | |
4094 | next[-1] = '\r'; | |
4095 | next[0] = '\n'; | |
4096 | dst = next + 1; | |
4097 | count++; | |
177c0ea7 | 4098 | } |
76b3903d GV |
4099 | else |
4100 | /* copied remaining partial line -> now finished */ | |
4101 | break; | |
4102 | } | |
4103 | buffer = tmpbuf; | |
4104 | } | |
4105 | } | |
4106 | ||
480b0c5b | 4107 | #ifdef HAVE_SOCKETS |
7559f399 | 4108 | if (fd < MAXDESC && fd_info[fd].flags & FILE_SOCKET) |
480b0c5b | 4109 | { |
30a32e0e | 4110 | unsigned long nblock = 0; |
f249a012 | 4111 | if (winsock_lib == NULL) abort (); |
30a32e0e JR |
4112 | |
4113 | /* TODO: implement select() properly so non-blocking I/O works. */ | |
4114 | /* For now, make sure the write blocks. */ | |
4115 | if (fd_info[fd].flags & FILE_NDELAY) | |
4116 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
4117 | ||
480b0c5b | 4118 | nchars = pfn_send (SOCK_HANDLE (fd), buffer, count, 0); |
30a32e0e JR |
4119 | |
4120 | /* Set the socket back to non-blocking if it was before, | |
4121 | for other operations that support it. */ | |
4122 | if (fd_info[fd].flags & FILE_NDELAY) | |
4123 | { | |
4124 | nblock = 1; | |
4125 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
4126 | } | |
4127 | ||
480b0c5b GV |
4128 | if (nchars == SOCKET_ERROR) |
4129 | { | |
670773af | 4130 | DebPrint(("sys_write.send failed with error %d on socket %ld\n", |
480b0c5b GV |
4131 | pfn_WSAGetLastError (), SOCK_HANDLE (fd))); |
4132 | set_errno (); | |
4133 | } | |
4134 | } | |
4135 | else | |
4136 | #endif | |
4137 | nchars = _write (fd, buffer, count); | |
4138 | ||
4139 | return nchars; | |
4140 | } | |
4141 | ||
f52eb3ef GV |
4142 | static void |
4143 | check_windows_init_file () | |
4144 | { | |
4145 | extern int noninteractive, inhibit_window_system; | |
4146 | ||
4147 | /* A common indication that Emacs is not installed properly is when | |
4148 | it cannot find the Windows installation file. If this file does | |
4149 | not exist in the expected place, tell the user. */ | |
4150 | ||
177c0ea7 | 4151 | if (!noninteractive && !inhibit_window_system) |
d54abccd GV |
4152 | { |
4153 | extern Lisp_Object Vwindow_system, Vload_path, Qfile_exists_p; | |
a0b9c838 | 4154 | Lisp_Object objs[2]; |
96ef7d42 | 4155 | Lisp_Object full_load_path; |
d54abccd GV |
4156 | Lisp_Object init_file; |
4157 | int fd; | |
f52eb3ef | 4158 | |
a0b9c838 GV |
4159 | objs[0] = Vload_path; |
4160 | objs[1] = decode_env_path (0, (getenv ("EMACSLOADPATH"))); | |
4161 | full_load_path = Fappend (2, objs); | |
d54abccd | 4162 | init_file = build_string ("term/w32-win"); |
c50a2aa6 | 4163 | fd = openp (full_load_path, init_file, Fget_load_suffixes (), NULL, Qnil); |
177c0ea7 | 4164 | if (fd < 0) |
d54abccd | 4165 | { |
96ef7d42 | 4166 | Lisp_Object load_path_print = Fprin1_to_string (full_load_path, Qnil); |
d5db4077 KR |
4167 | char *init_file_name = SDATA (init_file); |
4168 | char *load_path = SDATA (load_path_print); | |
acc23b87 KS |
4169 | char *buffer = alloca (1024 |
4170 | + strlen (init_file_name) | |
4171 | + strlen (load_path)); | |
d54abccd | 4172 | |
177c0ea7 | 4173 | sprintf (buffer, |
d54abccd GV |
4174 | "The Emacs Windows initialization file \"%s.el\" " |
4175 | "could not be found in your Emacs installation. " | |
4176 | "Emacs checked the following directories for this file:\n" | |
4177 | "\n%s\n\n" | |
4178 | "When Emacs cannot find this file, it usually means that it " | |
4179 | "was not installed properly, or its distribution file was " | |
4180 | "not unpacked properly.\nSee the README.W32 file in the " | |
4181 | "top-level Emacs directory for more information.", | |
4182 | init_file_name, load_path); | |
4183 | MessageBox (NULL, | |
4184 | buffer, | |
4185 | "Emacs Abort Dialog", | |
4186 | MB_OK | MB_ICONEXCLAMATION | MB_TASKMODAL); | |
f52eb3ef GV |
4187 | /* Use the low-level Emacs abort. */ |
4188 | #undef abort | |
d54abccd GV |
4189 | abort (); |
4190 | } | |
4191 | else | |
4192 | { | |
a302c7ae | 4193 | _close (fd); |
d54abccd | 4194 | } |
f52eb3ef | 4195 | } |
f52eb3ef | 4196 | } |
480b0c5b GV |
4197 | |
4198 | void | |
4199 | term_ntproc () | |
4200 | { | |
4201 | #ifdef HAVE_SOCKETS | |
4202 | /* shutdown the socket interface if necessary */ | |
4203 | term_winsock (); | |
4204 | #endif | |
52c7f9ee JR |
4205 | |
4206 | term_w32select (); | |
480b0c5b GV |
4207 | } |
4208 | ||
4209 | void | |
4210 | init_ntproc () | |
4211 | { | |
4212 | #ifdef HAVE_SOCKETS | |
f249a012 RS |
4213 | /* Initialise the socket interface now if available and requested by |
4214 | the user by defining PRELOAD_WINSOCK; otherwise loading will be | |
fbd6baed | 4215 | delayed until open-network-stream is called (w32-has-winsock can |
f249a012 RS |
4216 | also be used to dynamically load or reload winsock). |
4217 | ||
4218 | Conveniently, init_environment is called before us, so | |
4219 | PRELOAD_WINSOCK can be set in the registry. */ | |
4220 | ||
4221 | /* Always initialize this correctly. */ | |
4222 | winsock_lib = NULL; | |
4223 | ||
4224 | if (getenv ("PRELOAD_WINSOCK") != NULL) | |
4225 | init_winsock (TRUE); | |
480b0c5b GV |
4226 | #endif |
4227 | ||
4228 | /* Initial preparation for subprocess support: replace our standard | |
4229 | handles with non-inheritable versions. */ | |
4230 | { | |
4231 | HANDLE parent; | |
4232 | HANDLE stdin_save = INVALID_HANDLE_VALUE; | |
4233 | HANDLE stdout_save = INVALID_HANDLE_VALUE; | |
4234 | HANDLE stderr_save = INVALID_HANDLE_VALUE; | |
4235 | ||
4236 | parent = GetCurrentProcess (); | |
4237 | ||
4238 | /* ignore errors when duplicating and closing; typically the | |
4239 | handles will be invalid when running as a gui program. */ | |
177c0ea7 JB |
4240 | DuplicateHandle (parent, |
4241 | GetStdHandle (STD_INPUT_HANDLE), | |
480b0c5b | 4242 | parent, |
177c0ea7 JB |
4243 | &stdin_save, |
4244 | 0, | |
4245 | FALSE, | |
480b0c5b | 4246 | DUPLICATE_SAME_ACCESS); |
177c0ea7 | 4247 | |
480b0c5b GV |
4248 | DuplicateHandle (parent, |
4249 | GetStdHandle (STD_OUTPUT_HANDLE), | |
4250 | parent, | |
4251 | &stdout_save, | |
4252 | 0, | |
4253 | FALSE, | |
4254 | DUPLICATE_SAME_ACCESS); | |
177c0ea7 | 4255 | |
480b0c5b GV |
4256 | DuplicateHandle (parent, |
4257 | GetStdHandle (STD_ERROR_HANDLE), | |
4258 | parent, | |
4259 | &stderr_save, | |
4260 | 0, | |
4261 | FALSE, | |
4262 | DUPLICATE_SAME_ACCESS); | |
177c0ea7 | 4263 | |
480b0c5b GV |
4264 | fclose (stdin); |
4265 | fclose (stdout); | |
4266 | fclose (stderr); | |
4267 | ||
4268 | if (stdin_save != INVALID_HANDLE_VALUE) | |
4269 | _open_osfhandle ((long) stdin_save, O_TEXT); | |
4270 | else | |
76b3903d GV |
4271 | _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY); |
4272 | _fdopen (0, "r"); | |
480b0c5b GV |
4273 | |
4274 | if (stdout_save != INVALID_HANDLE_VALUE) | |
4275 | _open_osfhandle ((long) stdout_save, O_TEXT); | |
4276 | else | |
76b3903d GV |
4277 | _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY); |
4278 | _fdopen (1, "w"); | |
480b0c5b GV |
4279 | |
4280 | if (stderr_save != INVALID_HANDLE_VALUE) | |
4281 | _open_osfhandle ((long) stderr_save, O_TEXT); | |
4282 | else | |
76b3903d GV |
4283 | _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY); |
4284 | _fdopen (2, "w"); | |
480b0c5b GV |
4285 | } |
4286 | ||
4287 | /* unfortunately, atexit depends on implementation of malloc */ | |
4288 | /* atexit (term_ntproc); */ | |
4289 | signal (SIGABRT, term_ntproc); | |
76b3903d GV |
4290 | |
4291 | /* determine which drives are fixed, for GetCachedVolumeInformation */ | |
4292 | { | |
4293 | /* GetDriveType must have trailing backslash. */ | |
4294 | char drive[] = "A:\\"; | |
4295 | ||
4296 | /* Loop over all possible drive letters */ | |
4297 | while (*drive <= 'Z') | |
4298 | { | |
4299 | /* Record if this drive letter refers to a fixed drive. */ | |
177c0ea7 | 4300 | fixed_drives[DRIVE_INDEX (*drive)] = |
76b3903d GV |
4301 | (GetDriveType (drive) == DRIVE_FIXED); |
4302 | ||
4303 | (*drive)++; | |
4304 | } | |
a302c7ae AI |
4305 | |
4306 | /* Reset the volume info cache. */ | |
4307 | volume_cache = NULL; | |
76b3903d | 4308 | } |
177c0ea7 | 4309 | |
d54abccd GV |
4310 | /* Check to see if Emacs has been installed correctly. */ |
4311 | check_windows_init_file (); | |
480b0c5b GV |
4312 | } |
4313 | ||
a8c3a596 JR |
4314 | /* |
4315 | shutdown_handler ensures that buffers' autosave files are | |
4316 | up to date when the user logs off, or the system shuts down. | |
4317 | */ | |
4318 | BOOL WINAPI shutdown_handler(DWORD type) | |
4319 | { | |
4320 | /* Ctrl-C and Ctrl-Break are already suppressed, so don't handle them. */ | |
4321 | if (type == CTRL_CLOSE_EVENT /* User closes console window. */ | |
4322 | || type == CTRL_LOGOFF_EVENT /* User logs off. */ | |
4323 | || type == CTRL_SHUTDOWN_EVENT) /* User shutsdown. */ | |
4324 | { | |
4325 | /* Shut down cleanly, making sure autosave files are up to date. */ | |
4326 | shut_down_emacs (0, 0, Qnil); | |
4327 | } | |
4328 | ||
7046f191 | 4329 | /* Allow other handlers to handle this signal. */ |
a8c3a596 JR |
4330 | return FALSE; |
4331 | } | |
4332 | ||
9785d95b BK |
4333 | /* |
4334 | globals_of_w32 is used to initialize those global variables that | |
4335 | must always be initialized on startup even when the global variable | |
4336 | initialized is non zero (see the function main in emacs.c). | |
4337 | */ | |
9bfb11f9 KS |
4338 | void |
4339 | globals_of_w32 () | |
9785d95b | 4340 | { |
74258518 JR |
4341 | HMODULE kernel32 = GetModuleHandle ("kernel32.dll"); |
4342 | ||
4343 | get_process_times_fn = (GetProcessTimes_Proc) | |
4344 | GetProcAddress (kernel32, "GetProcessTimes"); | |
4345 | ||
9785d95b BK |
4346 | g_b_init_is_windows_9x = 0; |
4347 | g_b_init_open_process_token = 0; | |
4348 | g_b_init_get_token_information = 0; | |
4349 | g_b_init_lookup_account_sid = 0; | |
4350 | g_b_init_get_sid_identifier_authority = 0; | |
9d95a291 EZ |
4351 | g_b_init_get_sid_sub_authority = 0; |
4352 | g_b_init_get_sid_sub_authority_count = 0; | |
a8c3a596 JR |
4353 | /* The following sets a handler for shutdown notifications for |
4354 | console apps. This actually applies to Emacs in both console and | |
4355 | GUI modes, since we had to fool windows into thinking emacs is a | |
4356 | console application to get console mode to work. */ | |
4357 | SetConsoleCtrlHandler(shutdown_handler, TRUE); | |
9785d95b BK |
4358 | } |
4359 | ||
aa5ee2a3 | 4360 | /* end of w32.c */ |
ab5796a9 MB |
4361 | |
4362 | /* arch-tag: 90442dd3-37be-482b-b272-ac752e3049f1 | |
4363 | (do not change this comment) */ |