Commit | Line | Data |
---|---|---|
e9e23e23 | 1 | /* Utility and Unix shadow routines for GNU Emacs on the Microsoft W32 API. |
f8381794 GM |
2 | Copyright (C) 1994, 1995, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
3 | 2007, 2008 Free Software Foundation, Inc. | |
95ed0025 | 4 | |
3b7ad313 EN |
5 | This file is part of GNU Emacs. |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
3b7ad313 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
3b7ad313 EN |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
95ed0025 | 19 | |
9ec0b715 | 20 | /* |
95ed0025 RS |
21 | Geoff Voelker (voelker@cs.washington.edu) 7-29-94 |
22 | */ | |
76b3903d | 23 | #include <stddef.h> /* for offsetof */ |
95ed0025 RS |
24 | #include <stdlib.h> |
25 | #include <stdio.h> | |
26 | #include <io.h> | |
480b0c5b | 27 | #include <errno.h> |
95ed0025 RS |
28 | #include <fcntl.h> |
29 | #include <ctype.h> | |
480b0c5b | 30 | #include <signal.h> |
b3308d2e | 31 | #include <sys/file.h> |
480b0c5b | 32 | #include <sys/time.h> |
16bb7578 | 33 | #include <sys/utime.h> |
22189f79 | 34 | #include <mbstring.h> /* for _mbspbrk */ |
7c80d5ec | 35 | #include <math.h> |
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> |
7c80d5ec EZ |
76 | /* This is guarded by a higher value of _WIN32_WINNT than what we use. */ |
77 | typedef struct _MEMORYSTATUSEX { | |
78 | DWORD dwLength; | |
79 | DWORD dwMemoryLoad; | |
80 | DWORDLONG ullTotalPhys; | |
81 | DWORDLONG ullAvailPhys; | |
82 | DWORDLONG ullTotalPageFile; | |
83 | DWORDLONG ullAvailPageFile; | |
84 | DWORDLONG ullTotalVirtual; | |
85 | DWORDLONG ullAvailVirtual; | |
86 | DWORDLONG ullAvailExtendedVirtual; | |
87 | } MEMORYSTATUSEX,*LPMEMORYSTATUSEX; | |
88 | ||
634d3003 | 89 | #include <lmcons.h> |
2d5324c5 | 90 | #include <shlobj.h> |
00b3b7b3 | 91 | |
7c80d5ec EZ |
92 | #include <tlhelp32.h> |
93 | #include <psapi.h> | |
94 | /* This either is not in psapi.h or guarded by higher value of | |
95 | _WIN32_WINNT than what we use. */ | |
96 | typedef struct _PROCESS_MEMORY_COUNTERS_EX { | |
97 | DWORD cb; | |
98 | DWORD PageFaultCount; | |
99 | DWORD PeakWorkingSetSize; | |
100 | DWORD WorkingSetSize; | |
101 | DWORD QuotaPeakPagedPoolUsage; | |
102 | DWORD QuotaPagedPoolUsage; | |
103 | DWORD QuotaPeakNonPagedPoolUsage; | |
104 | DWORD QuotaNonPagedPoolUsage; | |
105 | DWORD PagefileUsage; | |
106 | DWORD PeakPagefileUsage; | |
107 | DWORD PrivateUsage; | |
108 | } PROCESS_MEMORY_COUNTERS_EX,*PPROCESS_MEMORY_COUNTERS_EX; | |
109 | ||
480b0c5b GV |
110 | #ifdef HAVE_SOCKETS /* TCP connection support, if kernel can do it */ |
111 | #include <sys/socket.h> | |
112 | #undef socket | |
113 | #undef bind | |
114 | #undef connect | |
115 | #undef htons | |
116 | #undef ntohs | |
117 | #undef inet_addr | |
118 | #undef gethostname | |
119 | #undef gethostbyname | |
120 | #undef getservbyname | |
ecd270eb | 121 | #undef getpeername |
380961a6 | 122 | #undef shutdown |
962955c5 JR |
123 | #undef setsockopt |
124 | #undef listen | |
125 | #undef getsockname | |
126 | #undef accept | |
127 | #undef recvfrom | |
128 | #undef sendto | |
480b0c5b | 129 | #endif |
00b3b7b3 | 130 | |
489f9371 | 131 | #include "w32.h" |
480b0c5b | 132 | #include "ndir.h" |
489f9371 | 133 | #include "w32heap.h" |
253574a6 | 134 | #include "systime.h" |
f481eb31 | 135 | #include "dispextern.h" /* for xstrcasecmp */ |
7c80d5ec | 136 | #include "coding.h" /* for Vlocale_coding_system */ |
253574a6 | 137 | |
1eb8fd91 | 138 | /* For serial_configure and serial_open. */ |
d888760c GM |
139 | #include "process.h" |
140 | /* From process.c */ | |
141 | extern Lisp_Object QCport, QCspeed, QCprocess; | |
142 | extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; | |
143 | extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
144 | ||
2d5324c5 JR |
145 | typedef HRESULT (WINAPI * ShGetFolderPath_fn) |
146 | (IN HWND, IN int, IN HANDLE, IN DWORD, OUT char *); | |
147 | ||
9785d95b | 148 | void globals_of_w32 (); |
8aaaec6b | 149 | static DWORD get_rid (PSID); |
9785d95b | 150 | |
76b3903d GV |
151 | extern Lisp_Object Vw32_downcase_file_names; |
152 | extern Lisp_Object Vw32_generate_fake_inodes; | |
153 | extern Lisp_Object Vw32_get_true_file_attributes; | |
ac0af113 JR |
154 | /* Defined in process.c for its own purpose. */ |
155 | extern Lisp_Object Qlocal; | |
156 | ||
e0c181dd | 157 | extern int w32_num_mouse_buttons; |
76b3903d | 158 | |
18e070ac | 159 | \f |
9d95a291 EZ |
160 | /* Initialization states. |
161 | ||
162 | WARNING: If you add any more such variables for additional APIs, | |
163 | you MUST add initialization for them to globals_of_w32 | |
164 | below. This is because these variables might get set | |
165 | to non-NULL values during dumping, but the dumped Emacs | |
166 | cannot reuse those values, because it could be run on a | |
167 | different version of the OS, where API addresses are | |
168 | different. */ | |
9785d95b BK |
169 | static BOOL g_b_init_is_windows_9x; |
170 | static BOOL g_b_init_open_process_token; | |
171 | static BOOL g_b_init_get_token_information; | |
172 | static BOOL g_b_init_lookup_account_sid; | |
173 | static BOOL g_b_init_get_sid_identifier_authority; | |
c617afce EZ |
174 | static BOOL g_b_init_get_sid_sub_authority; |
175 | static BOOL g_b_init_get_sid_sub_authority_count; | |
8aaaec6b EZ |
176 | static BOOL g_b_init_get_file_security; |
177 | static BOOL g_b_init_get_security_descriptor_owner; | |
178 | static BOOL g_b_init_get_security_descriptor_group; | |
179 | static BOOL g_b_init_is_valid_sid; | |
7c80d5ec EZ |
180 | static BOOL g_b_init_create_toolhelp32_snapshot; |
181 | static BOOL g_b_init_process32_first; | |
182 | static BOOL g_b_init_process32_next; | |
183 | static BOOL g_b_init_open_thread_token; | |
184 | static BOOL g_b_init_impersonate_self; | |
185 | static BOOL g_b_init_revert_to_self; | |
186 | static BOOL g_b_init_get_process_memory_info; | |
187 | static BOOL g_b_init_get_process_working_set_size; | |
188 | static BOOL g_b_init_global_memory_status; | |
189 | static BOOL g_b_init_global_memory_status_ex; | |
9785d95b | 190 | |
f60ae425 BK |
191 | /* |
192 | BEGIN: Wrapper functions around OpenProcessToken | |
193 | and other functions in advapi32.dll that are only | |
194 | supported in Windows NT / 2k / XP | |
195 | */ | |
196 | /* ** Function pointer typedefs ** */ | |
197 | typedef BOOL (WINAPI * OpenProcessToken_Proc) ( | |
198 | HANDLE ProcessHandle, | |
199 | DWORD DesiredAccess, | |
200 | PHANDLE TokenHandle); | |
201 | typedef BOOL (WINAPI * GetTokenInformation_Proc) ( | |
202 | HANDLE TokenHandle, | |
203 | TOKEN_INFORMATION_CLASS TokenInformationClass, | |
204 | LPVOID TokenInformation, | |
205 | DWORD TokenInformationLength, | |
206 | PDWORD ReturnLength); | |
74258518 JR |
207 | typedef BOOL (WINAPI * GetProcessTimes_Proc) ( |
208 | HANDLE process_handle, | |
209 | LPFILETIME creation_time, | |
210 | LPFILETIME exit_time, | |
211 | LPFILETIME kernel_time, | |
212 | LPFILETIME user_time); | |
213 | ||
214 | GetProcessTimes_Proc get_process_times_fn = NULL; | |
215 | ||
f60ae425 BK |
216 | #ifdef _UNICODE |
217 | const char * const LookupAccountSid_Name = "LookupAccountSidW"; | |
8aaaec6b | 218 | const char * const GetFileSecurity_Name = "GetFileSecurityW"; |
f60ae425 BK |
219 | #else |
220 | const char * const LookupAccountSid_Name = "LookupAccountSidA"; | |
8aaaec6b | 221 | const char * const GetFileSecurity_Name = "GetFileSecurityA"; |
f60ae425 BK |
222 | #endif |
223 | typedef BOOL (WINAPI * LookupAccountSid_Proc) ( | |
224 | LPCTSTR lpSystemName, | |
225 | PSID Sid, | |
226 | LPTSTR Name, | |
227 | LPDWORD cbName, | |
228 | LPTSTR DomainName, | |
229 | LPDWORD cbDomainName, | |
230 | PSID_NAME_USE peUse); | |
231 | typedef PSID_IDENTIFIER_AUTHORITY (WINAPI * GetSidIdentifierAuthority_Proc) ( | |
232 | PSID pSid); | |
c617afce EZ |
233 | typedef PDWORD (WINAPI * GetSidSubAuthority_Proc) ( |
234 | PSID pSid, | |
235 | DWORD n); | |
236 | typedef PUCHAR (WINAPI * GetSidSubAuthorityCount_Proc) ( | |
237 | PSID pSid); | |
8aaaec6b EZ |
238 | typedef BOOL (WINAPI * GetFileSecurity_Proc) ( |
239 | LPCTSTR lpFileName, | |
240 | SECURITY_INFORMATION RequestedInformation, | |
241 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
242 | DWORD nLength, | |
243 | LPDWORD lpnLengthNeeded); | |
244 | typedef BOOL (WINAPI * GetSecurityDescriptorOwner_Proc) ( | |
245 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
246 | PSID *pOwner, | |
247 | LPBOOL lpbOwnerDefaulted); | |
248 | typedef BOOL (WINAPI * GetSecurityDescriptorGroup_Proc) ( | |
249 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
250 | PSID *pGroup, | |
251 | LPBOOL lpbGroupDefaulted); | |
252 | typedef BOOL (WINAPI * IsValidSid_Proc) ( | |
253 | PSID sid); | |
7c80d5ec EZ |
254 | typedef HANDLE (WINAPI * CreateToolhelp32Snapshot_Proc) ( |
255 | DWORD dwFlags, | |
256 | DWORD th32ProcessID); | |
257 | typedef BOOL (WINAPI * Process32First_Proc) ( | |
258 | HANDLE hSnapshot, | |
259 | LPPROCESSENTRY32 lppe); | |
260 | typedef BOOL (WINAPI * Process32Next_Proc) ( | |
261 | HANDLE hSnapshot, | |
262 | LPPROCESSENTRY32 lppe); | |
263 | typedef BOOL (WINAPI * OpenThreadToken_Proc) ( | |
264 | HANDLE ThreadHandle, | |
265 | DWORD DesiredAccess, | |
266 | BOOL OpenAsSelf, | |
267 | PHANDLE TokenHandle); | |
268 | typedef BOOL (WINAPI * ImpersonateSelf_Proc) ( | |
269 | SECURITY_IMPERSONATION_LEVEL ImpersonationLevel); | |
270 | typedef BOOL (WINAPI * RevertToSelf_Proc) (void); | |
271 | typedef BOOL (WINAPI * GetProcessMemoryInfo_Proc) ( | |
272 | HANDLE Process, | |
273 | PPROCESS_MEMORY_COUNTERS ppsmemCounters, | |
274 | DWORD cb); | |
275 | typedef BOOL (WINAPI * GetProcessWorkingSetSize_Proc) ( | |
276 | HANDLE hProcess, | |
277 | DWORD * lpMinimumWorkingSetSize, | |
278 | DWORD * lpMaximumWorkingSetSize); | |
279 | typedef BOOL (WINAPI * GlobalMemoryStatus_Proc) ( | |
280 | LPMEMORYSTATUS lpBuffer); | |
281 | typedef BOOL (WINAPI * GlobalMemoryStatusEx_Proc) ( | |
282 | LPMEMORYSTATUSEX lpBuffer); | |
f60ae425 BK |
283 | |
284 | /* ** A utility function ** */ | |
9bfb11f9 KS |
285 | static BOOL |
286 | is_windows_9x () | |
f60ae425 | 287 | { |
9785d95b | 288 | static BOOL s_b_ret=0; |
f60ae425 | 289 | OSVERSIONINFO os_ver; |
9785d95b | 290 | if (g_b_init_is_windows_9x == 0) |
f60ae425 | 291 | { |
9785d95b BK |
292 | g_b_init_is_windows_9x = 1; |
293 | ZeroMemory(&os_ver, sizeof(OSVERSIONINFO)); | |
294 | os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); | |
295 | if (GetVersionEx (&os_ver)) | |
296 | { | |
297 | s_b_ret = (os_ver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS); | |
298 | } | |
f60ae425 | 299 | } |
9785d95b | 300 | return s_b_ret; |
f60ae425 BK |
301 | } |
302 | ||
74258518 JR |
303 | /* Get total user and system times for get-internal-run-time. |
304 | Returns a list of three integers if the times are provided by the OS | |
305 | (NT derivatives), otherwise it returns the result of current-time. */ | |
306 | Lisp_Object | |
307 | w32_get_internal_run_time () | |
308 | { | |
309 | if (get_process_times_fn) | |
310 | { | |
311 | FILETIME create, exit, kernel, user; | |
312 | HANDLE proc = GetCurrentProcess(); | |
313 | if ((*get_process_times_fn) (proc, &create, &exit, &kernel, &user)) | |
314 | { | |
315 | LARGE_INTEGER user_int, kernel_int, total; | |
316 | int microseconds; | |
317 | user_int.LowPart = user.dwLowDateTime; | |
318 | user_int.HighPart = user.dwHighDateTime; | |
319 | kernel_int.LowPart = kernel.dwLowDateTime; | |
320 | kernel_int.HighPart = kernel.dwHighDateTime; | |
321 | total.QuadPart = user_int.QuadPart + kernel_int.QuadPart; | |
322 | /* FILETIME is 100 nanosecond increments, Emacs only wants | |
323 | microsecond resolution. */ | |
324 | total.QuadPart /= 10; | |
325 | microseconds = total.QuadPart % 1000000; | |
326 | total.QuadPart /= 1000000; | |
327 | ||
328 | /* Sanity check to make sure we can represent the result. */ | |
329 | if (total.HighPart == 0) | |
330 | { | |
331 | int secs = total.LowPart; | |
332 | ||
333 | return list3 (make_number ((secs >> 16) & 0xffff), | |
334 | make_number (secs & 0xffff), | |
335 | make_number (microseconds)); | |
336 | } | |
337 | } | |
338 | } | |
339 | ||
340 | return Fcurrent_time (); | |
341 | } | |
342 | ||
f60ae425 BK |
343 | /* ** The wrapper functions ** */ |
344 | ||
345 | BOOL WINAPI open_process_token ( | |
346 | HANDLE ProcessHandle, | |
347 | DWORD DesiredAccess, | |
348 | PHANDLE TokenHandle) | |
349 | { | |
9785d95b | 350 | static OpenProcessToken_Proc s_pfn_Open_Process_Token = NULL; |
f60ae425 BK |
351 | HMODULE hm_advapi32 = NULL; |
352 | if (is_windows_9x () == TRUE) | |
353 | { | |
354 | return FALSE; | |
355 | } | |
9785d95b BK |
356 | if (g_b_init_open_process_token == 0) |
357 | { | |
358 | g_b_init_open_process_token = 1; | |
359 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
360 | s_pfn_Open_Process_Token = | |
361 | (OpenProcessToken_Proc) GetProcAddress (hm_advapi32, "OpenProcessToken"); | |
362 | } | |
363 | if (s_pfn_Open_Process_Token == NULL) | |
f60ae425 BK |
364 | { |
365 | return FALSE; | |
366 | } | |
367 | return ( | |
9785d95b | 368 | s_pfn_Open_Process_Token ( |
f60ae425 BK |
369 | ProcessHandle, |
370 | DesiredAccess, | |
371 | TokenHandle) | |
372 | ); | |
373 | } | |
374 | ||
375 | BOOL WINAPI get_token_information ( | |
376 | HANDLE TokenHandle, | |
377 | TOKEN_INFORMATION_CLASS TokenInformationClass, | |
378 | LPVOID TokenInformation, | |
379 | DWORD TokenInformationLength, | |
380 | PDWORD ReturnLength) | |
381 | { | |
9785d95b | 382 | static GetTokenInformation_Proc s_pfn_Get_Token_Information = NULL; |
f60ae425 BK |
383 | HMODULE hm_advapi32 = NULL; |
384 | if (is_windows_9x () == TRUE) | |
385 | { | |
386 | return FALSE; | |
387 | } | |
9785d95b BK |
388 | if (g_b_init_get_token_information == 0) |
389 | { | |
390 | g_b_init_get_token_information = 1; | |
391 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
392 | s_pfn_Get_Token_Information = | |
393 | (GetTokenInformation_Proc) GetProcAddress (hm_advapi32, "GetTokenInformation"); | |
394 | } | |
395 | if (s_pfn_Get_Token_Information == NULL) | |
f60ae425 BK |
396 | { |
397 | return FALSE; | |
398 | } | |
399 | return ( | |
9785d95b | 400 | s_pfn_Get_Token_Information ( |
f60ae425 BK |
401 | TokenHandle, |
402 | TokenInformationClass, | |
403 | TokenInformation, | |
404 | TokenInformationLength, | |
405 | ReturnLength) | |
406 | ); | |
407 | } | |
408 | ||
409 | BOOL WINAPI lookup_account_sid ( | |
410 | LPCTSTR lpSystemName, | |
411 | PSID Sid, | |
412 | LPTSTR Name, | |
413 | LPDWORD cbName, | |
414 | LPTSTR DomainName, | |
415 | LPDWORD cbDomainName, | |
416 | PSID_NAME_USE peUse) | |
417 | { | |
9785d95b | 418 | static LookupAccountSid_Proc s_pfn_Lookup_Account_Sid = NULL; |
f60ae425 BK |
419 | HMODULE hm_advapi32 = NULL; |
420 | if (is_windows_9x () == TRUE) | |
421 | { | |
422 | return FALSE; | |
423 | } | |
9785d95b BK |
424 | if (g_b_init_lookup_account_sid == 0) |
425 | { | |
426 | g_b_init_lookup_account_sid = 1; | |
427 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
428 | s_pfn_Lookup_Account_Sid = | |
429 | (LookupAccountSid_Proc) GetProcAddress (hm_advapi32, LookupAccountSid_Name); | |
430 | } | |
431 | if (s_pfn_Lookup_Account_Sid == NULL) | |
f60ae425 BK |
432 | { |
433 | return FALSE; | |
434 | } | |
435 | return ( | |
9785d95b | 436 | s_pfn_Lookup_Account_Sid ( |
f60ae425 BK |
437 | lpSystemName, |
438 | Sid, | |
439 | Name, | |
440 | cbName, | |
441 | DomainName, | |
442 | cbDomainName, | |
443 | peUse) | |
444 | ); | |
445 | } | |
446 | ||
447 | PSID_IDENTIFIER_AUTHORITY WINAPI get_sid_identifier_authority ( | |
448 | PSID pSid) | |
449 | { | |
9785d95b | 450 | static GetSidIdentifierAuthority_Proc s_pfn_Get_Sid_Identifier_Authority = NULL; |
f60ae425 BK |
451 | HMODULE hm_advapi32 = NULL; |
452 | if (is_windows_9x () == TRUE) | |
453 | { | |
454 | return NULL; | |
455 | } | |
9785d95b BK |
456 | if (g_b_init_get_sid_identifier_authority == 0) |
457 | { | |
458 | g_b_init_get_sid_identifier_authority = 1; | |
459 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
460 | s_pfn_Get_Sid_Identifier_Authority = | |
461 | (GetSidIdentifierAuthority_Proc) GetProcAddress ( | |
462 | hm_advapi32, "GetSidIdentifierAuthority"); | |
463 | } | |
464 | if (s_pfn_Get_Sid_Identifier_Authority == NULL) | |
f60ae425 BK |
465 | { |
466 | return NULL; | |
467 | } | |
9785d95b | 468 | return (s_pfn_Get_Sid_Identifier_Authority (pSid)); |
f60ae425 BK |
469 | } |
470 | ||
c617afce EZ |
471 | PDWORD WINAPI get_sid_sub_authority ( |
472 | PSID pSid, | |
473 | DWORD n) | |
474 | { | |
475 | static GetSidSubAuthority_Proc s_pfn_Get_Sid_Sub_Authority = NULL; | |
6811b9f4 | 476 | static DWORD zero = 0U; |
c617afce EZ |
477 | HMODULE hm_advapi32 = NULL; |
478 | if (is_windows_9x () == TRUE) | |
479 | { | |
6811b9f4 | 480 | return &zero; |
c617afce EZ |
481 | } |
482 | if (g_b_init_get_sid_sub_authority == 0) | |
483 | { | |
484 | g_b_init_get_sid_sub_authority = 1; | |
485 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
486 | s_pfn_Get_Sid_Sub_Authority = | |
487 | (GetSidSubAuthority_Proc) GetProcAddress ( | |
488 | hm_advapi32, "GetSidSubAuthority"); | |
489 | } | |
490 | if (s_pfn_Get_Sid_Sub_Authority == NULL) | |
491 | { | |
6811b9f4 | 492 | return &zero; |
c617afce EZ |
493 | } |
494 | return (s_pfn_Get_Sid_Sub_Authority (pSid, n)); | |
495 | } | |
496 | ||
497 | PUCHAR WINAPI get_sid_sub_authority_count ( | |
498 | PSID pSid) | |
499 | { | |
500 | static GetSidSubAuthorityCount_Proc s_pfn_Get_Sid_Sub_Authority_Count = NULL; | |
6811b9f4 | 501 | static UCHAR zero = 0U; |
c617afce EZ |
502 | HMODULE hm_advapi32 = NULL; |
503 | if (is_windows_9x () == TRUE) | |
504 | { | |
6811b9f4 | 505 | return &zero; |
c617afce EZ |
506 | } |
507 | if (g_b_init_get_sid_sub_authority_count == 0) | |
508 | { | |
509 | g_b_init_get_sid_sub_authority_count = 1; | |
510 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
511 | s_pfn_Get_Sid_Sub_Authority_Count = | |
512 | (GetSidSubAuthorityCount_Proc) GetProcAddress ( | |
513 | hm_advapi32, "GetSidSubAuthorityCount"); | |
514 | } | |
515 | if (s_pfn_Get_Sid_Sub_Authority_Count == NULL) | |
516 | { | |
6811b9f4 | 517 | return &zero; |
c617afce EZ |
518 | } |
519 | return (s_pfn_Get_Sid_Sub_Authority_Count (pSid)); | |
520 | } | |
521 | ||
8aaaec6b EZ |
522 | BOOL WINAPI get_file_security ( |
523 | LPCTSTR lpFileName, | |
524 | SECURITY_INFORMATION RequestedInformation, | |
525 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
526 | DWORD nLength, | |
527 | LPDWORD lpnLengthNeeded) | |
528 | { | |
529 | static GetFileSecurity_Proc s_pfn_Get_File_Security = NULL; | |
530 | HMODULE hm_advapi32 = NULL; | |
531 | if (is_windows_9x () == TRUE) | |
532 | { | |
533 | return FALSE; | |
534 | } | |
535 | if (g_b_init_get_file_security == 0) | |
536 | { | |
537 | g_b_init_get_file_security = 1; | |
538 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
539 | s_pfn_Get_File_Security = | |
540 | (GetFileSecurity_Proc) GetProcAddress ( | |
541 | hm_advapi32, GetFileSecurity_Name); | |
542 | } | |
543 | if (s_pfn_Get_File_Security == NULL) | |
544 | { | |
545 | return FALSE; | |
546 | } | |
547 | return (s_pfn_Get_File_Security (lpFileName, RequestedInformation, | |
548 | pSecurityDescriptor, nLength, | |
549 | lpnLengthNeeded)); | |
550 | } | |
551 | ||
552 | BOOL WINAPI get_security_descriptor_owner ( | |
553 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
554 | PSID *pOwner, | |
555 | LPBOOL lpbOwnerDefaulted) | |
556 | { | |
557 | static GetSecurityDescriptorOwner_Proc s_pfn_Get_Security_Descriptor_Owner = NULL; | |
558 | HMODULE hm_advapi32 = NULL; | |
559 | if (is_windows_9x () == TRUE) | |
560 | { | |
561 | return FALSE; | |
562 | } | |
563 | if (g_b_init_get_security_descriptor_owner == 0) | |
564 | { | |
565 | g_b_init_get_security_descriptor_owner = 1; | |
566 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
567 | s_pfn_Get_Security_Descriptor_Owner = | |
568 | (GetSecurityDescriptorOwner_Proc) GetProcAddress ( | |
569 | hm_advapi32, "GetSecurityDescriptorOwner"); | |
570 | } | |
571 | if (s_pfn_Get_Security_Descriptor_Owner == NULL) | |
572 | { | |
573 | return FALSE; | |
574 | } | |
575 | return (s_pfn_Get_Security_Descriptor_Owner (pSecurityDescriptor, pOwner, | |
576 | lpbOwnerDefaulted)); | |
577 | } | |
578 | ||
579 | BOOL WINAPI get_security_descriptor_group ( | |
580 | PSECURITY_DESCRIPTOR pSecurityDescriptor, | |
581 | PSID *pGroup, | |
582 | LPBOOL lpbGroupDefaulted) | |
583 | { | |
584 | static GetSecurityDescriptorGroup_Proc s_pfn_Get_Security_Descriptor_Group = NULL; | |
585 | HMODULE hm_advapi32 = NULL; | |
586 | if (is_windows_9x () == TRUE) | |
587 | { | |
588 | return FALSE; | |
589 | } | |
590 | if (g_b_init_get_security_descriptor_group == 0) | |
591 | { | |
592 | g_b_init_get_security_descriptor_group = 1; | |
593 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
594 | s_pfn_Get_Security_Descriptor_Group = | |
595 | (GetSecurityDescriptorGroup_Proc) GetProcAddress ( | |
596 | hm_advapi32, "GetSecurityDescriptorGroup"); | |
597 | } | |
598 | if (s_pfn_Get_Security_Descriptor_Group == NULL) | |
599 | { | |
600 | return FALSE; | |
601 | } | |
602 | return (s_pfn_Get_Security_Descriptor_Group (pSecurityDescriptor, pGroup, | |
603 | lpbGroupDefaulted)); | |
604 | } | |
605 | ||
606 | BOOL WINAPI is_valid_sid ( | |
607 | PSID sid) | |
608 | { | |
609 | static IsValidSid_Proc s_pfn_Is_Valid_Sid = NULL; | |
610 | HMODULE hm_advapi32 = NULL; | |
611 | if (is_windows_9x () == TRUE) | |
612 | { | |
613 | return FALSE; | |
614 | } | |
615 | if (g_b_init_is_valid_sid == 0) | |
616 | { | |
617 | g_b_init_is_valid_sid = 1; | |
618 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
619 | s_pfn_Is_Valid_Sid = | |
620 | (IsValidSid_Proc) GetProcAddress ( | |
621 | hm_advapi32, "IsValidSid"); | |
622 | } | |
623 | if (s_pfn_Is_Valid_Sid == NULL) | |
624 | { | |
625 | return FALSE; | |
626 | } | |
627 | return (s_pfn_Is_Valid_Sid (sid)); | |
628 | } | |
629 | ||
f60ae425 BK |
630 | /* |
631 | END: Wrapper functions around OpenProcessToken | |
632 | and other functions in advapi32.dll that are only | |
633 | supported in Windows NT / 2k / XP | |
634 | */ | |
635 | ||
636 | \f | |
18e070ac AI |
637 | /* Equivalent of strerror for W32 error codes. */ |
638 | char * | |
639 | w32_strerror (int error_no) | |
640 | { | |
641 | static char buf[500]; | |
642 | ||
643 | if (error_no == 0) | |
644 | error_no = GetLastError (); | |
645 | ||
646 | buf[0] = '\0'; | |
647 | if (!FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, | |
648 | error_no, | |
649 | 0, /* choose most suitable language */ | |
650 | buf, sizeof (buf), NULL)) | |
651 | sprintf (buf, "w32 error %u", error_no); | |
652 | return buf; | |
653 | } | |
654 | ||
ed91b2ad EZ |
655 | /* Return 1 if P is a valid pointer to an object of size SIZE. Return |
656 | 0 if P is NOT a valid pointer. Return -1 if we cannot validate P. | |
657 | ||
658 | This is called from alloc.c:valid_pointer_p. */ | |
659 | int | |
660 | w32_valid_pointer_p (void *p, int size) | |
661 | { | |
662 | SIZE_T done; | |
663 | HANDLE h = OpenProcess (PROCESS_VM_READ, FALSE, GetCurrentProcessId ()); | |
664 | ||
665 | if (h) | |
666 | { | |
667 | unsigned char *buf = alloca (size); | |
668 | int retval = ReadProcessMemory (h, p, buf, size, &done); | |
669 | ||
670 | CloseHandle (h); | |
671 | return retval; | |
672 | } | |
673 | else | |
674 | return -1; | |
675 | } | |
676 | ||
76b3903d | 677 | static char startup_dir[MAXPATHLEN]; |
00b3b7b3 | 678 | |
95ed0025 | 679 | /* Get the current working directory. */ |
480b0c5b | 680 | char * |
95ed0025 RS |
681 | getwd (char *dir) |
682 | { | |
76b3903d | 683 | #if 0 |
480b0c5b GV |
684 | if (GetCurrentDirectory (MAXPATHLEN, dir) > 0) |
685 | return dir; | |
686 | return NULL; | |
76b3903d GV |
687 | #else |
688 | /* Emacs doesn't actually change directory itself, and we want to | |
689 | force our real wd to be where emacs.exe is to avoid unnecessary | |
690 | conflicts when trying to rename or delete directories. */ | |
691 | strcpy (dir, startup_dir); | |
692 | return dir; | |
693 | #endif | |
95ed0025 RS |
694 | } |
695 | ||
480b0c5b | 696 | #ifndef HAVE_SOCKETS |
95ed0025 RS |
697 | /* Emulate gethostname. */ |
698 | int | |
699 | gethostname (char *buffer, int size) | |
700 | { | |
177c0ea7 | 701 | /* NT only allows small host names, so the buffer is |
95ed0025 RS |
702 | certainly large enough. */ |
703 | return !GetComputerName (buffer, &size); | |
704 | } | |
480b0c5b | 705 | #endif /* HAVE_SOCKETS */ |
95ed0025 RS |
706 | |
707 | /* Emulate getloadavg. */ | |
708 | int | |
709 | getloadavg (double loadavg[], int nelem) | |
710 | { | |
711 | int i; | |
712 | ||
713 | /* A faithful emulation is going to have to be saved for a rainy day. */ | |
177c0ea7 | 714 | for (i = 0; i < nelem; i++) |
95ed0025 RS |
715 | { |
716 | loadavg[i] = 0.0; | |
717 | } | |
718 | return i; | |
719 | } | |
720 | ||
480b0c5b | 721 | /* Emulate getpwuid, getpwnam and others. */ |
95ed0025 | 722 | |
051fe60d GV |
723 | #define PASSWD_FIELD_SIZE 256 |
724 | ||
07f7980a EZ |
725 | static char dflt_passwd_name[PASSWD_FIELD_SIZE]; |
726 | static char dflt_passwd_passwd[PASSWD_FIELD_SIZE]; | |
727 | static char dflt_passwd_gecos[PASSWD_FIELD_SIZE]; | |
728 | static char dflt_passwd_dir[PASSWD_FIELD_SIZE]; | |
729 | static char dflt_passwd_shell[PASSWD_FIELD_SIZE]; | |
95ed0025 | 730 | |
07f7980a | 731 | static struct passwd dflt_passwd = |
95ed0025 | 732 | { |
07f7980a EZ |
733 | dflt_passwd_name, |
734 | dflt_passwd_passwd, | |
95ed0025 RS |
735 | 0, |
736 | 0, | |
737 | 0, | |
07f7980a EZ |
738 | dflt_passwd_gecos, |
739 | dflt_passwd_dir, | |
740 | dflt_passwd_shell, | |
95ed0025 RS |
741 | }; |
742 | ||
07f7980a EZ |
743 | static char dflt_group_name[GNLEN+1]; |
744 | ||
745 | static struct group dflt_group = | |
3d19b645 | 746 | { |
07f7980a EZ |
747 | /* When group information is not available, we return this as the |
748 | group for all files. */ | |
749 | dflt_group_name, | |
750 | 0, | |
3d19b645 LH |
751 | }; |
752 | ||
177c0ea7 JB |
753 | int |
754 | getuid () | |
755 | { | |
07f7980a | 756 | return dflt_passwd.pw_uid; |
480b0c5b GV |
757 | } |
758 | ||
177c0ea7 JB |
759 | int |
760 | geteuid () | |
761 | { | |
480b0c5b GV |
762 | /* I could imagine arguing for checking to see whether the user is |
763 | in the Administrators group and returning a UID of 0 for that | |
764 | case, but I don't know how wise that would be in the long run. */ | |
177c0ea7 | 765 | return getuid (); |
480b0c5b GV |
766 | } |
767 | ||
177c0ea7 JB |
768 | int |
769 | getgid () | |
770 | { | |
07f7980a | 771 | return dflt_passwd.pw_gid; |
480b0c5b GV |
772 | } |
773 | ||
177c0ea7 JB |
774 | int |
775 | getegid () | |
776 | { | |
480b0c5b GV |
777 | return getgid (); |
778 | } | |
779 | ||
95ed0025 RS |
780 | struct passwd * |
781 | getpwuid (int uid) | |
782 | { | |
07f7980a EZ |
783 | if (uid == dflt_passwd.pw_uid) |
784 | return &dflt_passwd; | |
480b0c5b | 785 | return NULL; |
95ed0025 RS |
786 | } |
787 | ||
3d19b645 LH |
788 | struct group * |
789 | getgrgid (gid_t gid) | |
790 | { | |
07f7980a | 791 | return &dflt_group; |
3d19b645 LH |
792 | } |
793 | ||
95ed0025 RS |
794 | struct passwd * |
795 | getpwnam (char *name) | |
796 | { | |
797 | struct passwd *pw; | |
177c0ea7 | 798 | |
95ed0025 RS |
799 | pw = getpwuid (getuid ()); |
800 | if (!pw) | |
801 | return pw; | |
802 | ||
05131107 | 803 | if (xstrcasecmp (name, pw->pw_name)) |
95ed0025 RS |
804 | return NULL; |
805 | ||
806 | return pw; | |
807 | } | |
808 | ||
480b0c5b GV |
809 | void |
810 | init_user_info () | |
95ed0025 | 811 | { |
480b0c5b GV |
812 | /* Find the user's real name by opening the process token and |
813 | looking up the name associated with the user-sid in that token. | |
814 | ||
815 | Use the relative portion of the identifier authority value from | |
816 | the user-sid as the user id value (same for group id using the | |
817 | primary group sid from the process token). */ | |
818 | ||
07f7980a EZ |
819 | char uname[UNLEN+1], gname[GNLEN+1], domain[1025]; |
820 | DWORD ulength = sizeof (uname), dlength = sizeof (domain), trash; | |
821 | DWORD glength = sizeof (gname); | |
10aabbf9 JB |
822 | HANDLE token = NULL; |
823 | SID_NAME_USE user_type; | |
634d3003 EZ |
824 | unsigned char buf[1024]; |
825 | TOKEN_USER user_token; | |
826 | TOKEN_PRIMARY_GROUP group_token; | |
10aabbf9 JB |
827 | |
828 | if (open_process_token (GetCurrentProcess (), TOKEN_QUERY, &token) | |
829 | && get_token_information (token, TokenUser, | |
634d3003 EZ |
830 | (PVOID)buf, sizeof (buf), &trash) |
831 | && (memcpy (&user_token, buf, sizeof (user_token)), | |
07f7980a | 832 | lookup_account_sid (NULL, user_token.User.Sid, uname, &ulength, |
634d3003 | 833 | domain, &dlength, &user_type))) |
d1c1c3d2 | 834 | { |
07f7980a | 835 | strcpy (dflt_passwd.pw_name, uname); |
c617afce | 836 | /* Determine a reasonable uid value. */ |
05131107 | 837 | if (xstrcasecmp ("administrator", uname) == 0) |
480b0c5b | 838 | { |
07f7980a EZ |
839 | dflt_passwd.pw_uid = 500; /* well-known Administrator uid */ |
840 | dflt_passwd.pw_gid = 513; /* well-known None gid */ | |
480b0c5b GV |
841 | } |
842 | else | |
843 | { | |
ce0ee994 EZ |
844 | /* Use the last sub-authority value of the RID, the relative |
845 | portion of the SID, as user/group ID. */ | |
8aaaec6b | 846 | dflt_passwd.pw_uid = get_rid (user_token.User.Sid); |
480b0c5b | 847 | |
8aaaec6b | 848 | /* Get group id and name. */ |
f60ae425 | 849 | if (get_token_information (token, TokenPrimaryGroup, |
634d3003 | 850 | (PVOID)buf, sizeof (buf), &trash)) |
480b0c5b | 851 | { |
634d3003 | 852 | memcpy (&group_token, buf, sizeof (group_token)); |
8aaaec6b | 853 | dflt_passwd.pw_gid = get_rid (group_token.PrimaryGroup); |
07f7980a EZ |
854 | dlength = sizeof (domain); |
855 | if (lookup_account_sid (NULL, group_token.PrimaryGroup, | |
856 | gname, &glength, NULL, &dlength, | |
857 | &user_type)) | |
858 | strcpy (dflt_group_name, gname); | |
480b0c5b GV |
859 | } |
860 | else | |
07f7980a | 861 | dflt_passwd.pw_gid = dflt_passwd.pw_uid; |
480b0c5b GV |
862 | } |
863 | } | |
864 | /* If security calls are not supported (presumably because we | |
10aabbf9 | 865 | are running under Windows 95), fallback to this. */ |
07f7980a | 866 | else if (GetUserName (uname, &ulength)) |
480b0c5b | 867 | { |
07f7980a | 868 | strcpy (dflt_passwd.pw_name, uname); |
05131107 | 869 | if (xstrcasecmp ("administrator", uname) == 0) |
07f7980a | 870 | dflt_passwd.pw_uid = 0; |
480b0c5b | 871 | else |
07f7980a EZ |
872 | dflt_passwd.pw_uid = 123; |
873 | dflt_passwd.pw_gid = dflt_passwd.pw_uid; | |
480b0c5b GV |
874 | } |
875 | else | |
876 | { | |
07f7980a EZ |
877 | strcpy (dflt_passwd.pw_name, "unknown"); |
878 | dflt_passwd.pw_uid = 123; | |
879 | dflt_passwd.pw_gid = 123; | |
d1c1c3d2 | 880 | } |
07f7980a | 881 | dflt_group.gr_gid = dflt_passwd.pw_gid; |
95ed0025 | 882 | |
480b0c5b GV |
883 | /* Ensure HOME and SHELL are defined. */ |
884 | if (getenv ("HOME") == NULL) | |
ca149beb | 885 | abort (); |
480b0c5b | 886 | if (getenv ("SHELL") == NULL) |
ca149beb | 887 | abort (); |
95ed0025 | 888 | |
480b0c5b | 889 | /* Set dir and shell from environment variables. */ |
07f7980a EZ |
890 | strcpy (dflt_passwd.pw_dir, getenv ("HOME")); |
891 | strcpy (dflt_passwd.pw_shell, getenv ("SHELL")); | |
bd4a449f | 892 | |
480b0c5b GV |
893 | if (token) |
894 | CloseHandle (token); | |
95ed0025 RS |
895 | } |
896 | ||
95ed0025 | 897 | int |
480b0c5b | 898 | random () |
95ed0025 | 899 | { |
480b0c5b GV |
900 | /* rand () on NT gives us 15 random bits...hack together 30 bits. */ |
901 | return ((rand () << 15) | rand ()); | |
95ed0025 RS |
902 | } |
903 | ||
95ed0025 | 904 | void |
480b0c5b | 905 | srandom (int seed) |
95ed0025 | 906 | { |
480b0c5b | 907 | srand (seed); |
95ed0025 RS |
908 | } |
909 | ||
76b3903d | 910 | |
cbe39279 RS |
911 | /* Normalize filename by converting all path separators to |
912 | the specified separator. Also conditionally convert upper | |
913 | case path name components to lower case. */ | |
914 | ||
915 | static void | |
916 | normalize_filename (fp, path_sep) | |
917 | register char *fp; | |
918 | char path_sep; | |
919 | { | |
920 | char sep; | |
921 | char *elem; | |
922 | ||
5162ffce MB |
923 | /* Always lower-case drive letters a-z, even if the filesystem |
924 | preserves case in filenames. | |
925 | This is so filenames can be compared by string comparison | |
926 | functions that are case-sensitive. Even case-preserving filesystems | |
927 | do not distinguish case in drive letters. */ | |
928 | if (fp[1] == ':' && *fp >= 'A' && *fp <= 'Z') | |
929 | { | |
930 | *fp += 'a' - 'A'; | |
931 | fp += 2; | |
932 | } | |
933 | ||
fbd6baed | 934 | if (NILP (Vw32_downcase_file_names)) |
cbe39279 RS |
935 | { |
936 | while (*fp) | |
937 | { | |
938 | if (*fp == '/' || *fp == '\\') | |
939 | *fp = path_sep; | |
940 | fp++; | |
941 | } | |
942 | return; | |
943 | } | |
944 | ||
945 | sep = path_sep; /* convert to this path separator */ | |
946 | elem = fp; /* start of current path element */ | |
947 | ||
948 | do { | |
949 | if (*fp >= 'a' && *fp <= 'z') | |
950 | elem = 0; /* don't convert this element */ | |
951 | ||
952 | if (*fp == 0 || *fp == ':') | |
953 | { | |
954 | sep = *fp; /* restore current separator (or 0) */ | |
955 | *fp = '/'; /* after conversion of this element */ | |
956 | } | |
957 | ||
958 | if (*fp == '/' || *fp == '\\') | |
959 | { | |
960 | if (elem && elem != fp) | |
961 | { | |
962 | *fp = 0; /* temporary end of string */ | |
963 | _strlwr (elem); /* while we convert to lower case */ | |
964 | } | |
965 | *fp = sep; /* convert (or restore) path separator */ | |
966 | elem = fp + 1; /* next element starts after separator */ | |
967 | sep = path_sep; | |
968 | } | |
969 | } while (*fp++); | |
970 | } | |
971 | ||
480b0c5b | 972 | /* Destructively turn backslashes into slashes. */ |
95ed0025 | 973 | void |
480b0c5b GV |
974 | dostounix_filename (p) |
975 | register char *p; | |
95ed0025 | 976 | { |
cbe39279 | 977 | normalize_filename (p, '/'); |
95ed0025 RS |
978 | } |
979 | ||
480b0c5b | 980 | /* Destructively turn slashes into backslashes. */ |
95ed0025 | 981 | void |
480b0c5b GV |
982 | unixtodos_filename (p) |
983 | register char *p; | |
95ed0025 | 984 | { |
cbe39279 | 985 | normalize_filename (p, '\\'); |
95ed0025 RS |
986 | } |
987 | ||
480b0c5b GV |
988 | /* Remove all CR's that are followed by a LF. |
989 | (From msdos.c...probably should figure out a way to share it, | |
990 | although this code isn't going to ever change.) */ | |
35f0d482 | 991 | int |
480b0c5b GV |
992 | crlf_to_lf (n, buf) |
993 | register int n; | |
994 | register unsigned char *buf; | |
35f0d482 | 995 | { |
480b0c5b GV |
996 | unsigned char *np = buf; |
997 | unsigned char *startp = buf; | |
998 | unsigned char *endp = buf + n; | |
35f0d482 | 999 | |
480b0c5b GV |
1000 | if (n == 0) |
1001 | return n; | |
1002 | while (buf < endp - 1) | |
95ed0025 | 1003 | { |
480b0c5b GV |
1004 | if (*buf == 0x0d) |
1005 | { | |
1006 | if (*(++buf) != 0x0a) | |
1007 | *np++ = 0x0d; | |
1008 | } | |
1009 | else | |
1010 | *np++ = *buf++; | |
95ed0025 | 1011 | } |
480b0c5b GV |
1012 | if (buf < endp) |
1013 | *np++ = *buf++; | |
1014 | return np - startp; | |
95ed0025 RS |
1015 | } |
1016 | ||
76b3903d GV |
1017 | /* Parse the root part of file name, if present. Return length and |
1018 | optionally store pointer to char after root. */ | |
1019 | static int | |
1020 | parse_root (char * name, char ** pPath) | |
1021 | { | |
1022 | char * start = name; | |
1023 | ||
1024 | if (name == NULL) | |
1025 | return 0; | |
1026 | ||
1027 | /* find the root name of the volume if given */ | |
1028 | if (isalpha (name[0]) && name[1] == ':') | |
1029 | { | |
1030 | /* skip past drive specifier */ | |
1031 | name += 2; | |
1032 | if (IS_DIRECTORY_SEP (name[0])) | |
1033 | name++; | |
1034 | } | |
1035 | else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1])) | |
1036 | { | |
1037 | int slashes = 2; | |
1038 | name += 2; | |
1039 | do | |
1040 | { | |
1041 | if (IS_DIRECTORY_SEP (*name) && --slashes == 0) | |
1042 | break; | |
1043 | name++; | |
1044 | } | |
1045 | while ( *name ); | |
1046 | if (IS_DIRECTORY_SEP (name[0])) | |
1047 | name++; | |
1048 | } | |
1049 | ||
1050 | if (pPath) | |
1051 | *pPath = name; | |
1052 | ||
1053 | return name - start; | |
1054 | } | |
1055 | ||
1056 | /* Get long base name for name; name is assumed to be absolute. */ | |
1057 | static int | |
1058 | get_long_basename (char * name, char * buf, int size) | |
1059 | { | |
1060 | WIN32_FIND_DATA find_data; | |
1061 | HANDLE dir_handle; | |
1062 | int len = 0; | |
1063 | ||
9ab8560d | 1064 | /* must be valid filename, no wild cards or other invalid characters */ |
22189f79 | 1065 | if (_mbspbrk (name, "*?|<>\"")) |
bb1584c8 RS |
1066 | return 0; |
1067 | ||
76b3903d GV |
1068 | dir_handle = FindFirstFile (name, &find_data); |
1069 | if (dir_handle != INVALID_HANDLE_VALUE) | |
1070 | { | |
1071 | if ((len = strlen (find_data.cFileName)) < size) | |
1072 | memcpy (buf, find_data.cFileName, len + 1); | |
1073 | else | |
1074 | len = 0; | |
1075 | FindClose (dir_handle); | |
1076 | } | |
1077 | return len; | |
1078 | } | |
1079 | ||
1080 | /* Get long name for file, if possible (assumed to be absolute). */ | |
1081 | BOOL | |
1082 | w32_get_long_filename (char * name, char * buf, int size) | |
1083 | { | |
1084 | char * o = buf; | |
1085 | char * p; | |
1086 | char * q; | |
1087 | char full[ MAX_PATH ]; | |
1088 | int len; | |
1089 | ||
1090 | len = strlen (name); | |
1091 | if (len >= MAX_PATH) | |
1092 | return FALSE; | |
1093 | ||
1094 | /* Use local copy for destructive modification. */ | |
1095 | memcpy (full, name, len+1); | |
1096 | unixtodos_filename (full); | |
1097 | ||
1098 | /* Copy root part verbatim. */ | |
1099 | len = parse_root (full, &p); | |
1100 | memcpy (o, full, len); | |
1101 | o += len; | |
4f8ac0b2 | 1102 | *o = '\0'; |
76b3903d GV |
1103 | size -= len; |
1104 | ||
4f8ac0b2 | 1105 | while (p != NULL && *p) |
76b3903d GV |
1106 | { |
1107 | q = p; | |
1108 | p = strchr (q, '\\'); | |
1109 | if (p) *p = '\0'; | |
1110 | len = get_long_basename (full, o, size); | |
1111 | if (len > 0) | |
1112 | { | |
1113 | o += len; | |
1114 | size -= len; | |
1115 | if (p != NULL) | |
1116 | { | |
1117 | *p++ = '\\'; | |
1118 | if (size < 2) | |
1119 | return FALSE; | |
1120 | *o++ = '\\'; | |
1121 | size--; | |
1122 | *o = '\0'; | |
1123 | } | |
1124 | } | |
1125 | else | |
1126 | return FALSE; | |
1127 | } | |
76b3903d GV |
1128 | |
1129 | return TRUE; | |
1130 | } | |
1131 | ||
9d3355d1 GV |
1132 | int |
1133 | is_unc_volume (const char *filename) | |
1134 | { | |
1135 | const char *ptr = filename; | |
1136 | ||
1137 | if (!IS_DIRECTORY_SEP (ptr[0]) || !IS_DIRECTORY_SEP (ptr[1]) || !ptr[2]) | |
1138 | return 0; | |
1139 | ||
22189f79 | 1140 | if (_mbspbrk (ptr + 2, "*?|<>\"\\/")) |
9d3355d1 GV |
1141 | return 0; |
1142 | ||
1143 | return 1; | |
1144 | } | |
76b3903d | 1145 | |
95ed0025 RS |
1146 | /* Routines that are no-ops on NT but are defined to get Emacs to compile. */ |
1147 | ||
177c0ea7 JB |
1148 | int |
1149 | sigsetmask (int signal_mask) | |
1150 | { | |
95ed0025 RS |
1151 | return 0; |
1152 | } | |
1153 | ||
177c0ea7 JB |
1154 | int |
1155 | sigmask (int sig) | |
1156 | { | |
8f900f6e AI |
1157 | return 0; |
1158 | } | |
1159 | ||
177c0ea7 JB |
1160 | int |
1161 | sigblock (int sig) | |
1162 | { | |
95ed0025 RS |
1163 | return 0; |
1164 | } | |
1165 | ||
177c0ea7 JB |
1166 | int |
1167 | sigunblock (int sig) | |
1168 | { | |
8f900f6e AI |
1169 | return 0; |
1170 | } | |
1171 | ||
177c0ea7 JB |
1172 | int |
1173 | setpgrp (int pid, int gid) | |
1174 | { | |
95ed0025 RS |
1175 | return 0; |
1176 | } | |
1177 | ||
177c0ea7 JB |
1178 | int |
1179 | alarm (int seconds) | |
1180 | { | |
95ed0025 RS |
1181 | return 0; |
1182 | } | |
1183 | ||
480b0c5b | 1184 | #define REG_ROOT "SOFTWARE\\GNU\\Emacs" |
f332b293 | 1185 | |
177c0ea7 | 1186 | LPBYTE |
fbd6baed | 1187 | w32_get_resource (key, lpdwtype) |
f332b293 GV |
1188 | char *key; |
1189 | LPDWORD lpdwtype; | |
1190 | { | |
1191 | LPBYTE lpvalue; | |
1192 | HKEY hrootkey = NULL; | |
1193 | DWORD cbData; | |
177c0ea7 JB |
1194 | |
1195 | /* Check both the current user and the local machine to see if | |
f332b293 | 1196 | we have any resources. */ |
177c0ea7 | 1197 | |
f332b293 GV |
1198 | if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) |
1199 | { | |
1200 | lpvalue = NULL; | |
1201 | ||
177c0ea7 JB |
1202 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS |
1203 | && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL | |
f332b293 GV |
1204 | && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS) |
1205 | { | |
4da4d9bb | 1206 | RegCloseKey (hrootkey); |
f332b293 GV |
1207 | return (lpvalue); |
1208 | } | |
1209 | ||
70fdbb46 | 1210 | xfree (lpvalue); |
177c0ea7 | 1211 | |
f332b293 | 1212 | RegCloseKey (hrootkey); |
177c0ea7 JB |
1213 | } |
1214 | ||
f332b293 GV |
1215 | if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) |
1216 | { | |
1217 | lpvalue = NULL; | |
177c0ea7 | 1218 | |
76b3903d GV |
1219 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS |
1220 | && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL | |
1221 | && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS) | |
f332b293 | 1222 | { |
4da4d9bb | 1223 | RegCloseKey (hrootkey); |
f332b293 GV |
1224 | return (lpvalue); |
1225 | } | |
177c0ea7 | 1226 | |
70fdbb46 | 1227 | xfree (lpvalue); |
177c0ea7 | 1228 | |
f332b293 | 1229 | RegCloseKey (hrootkey); |
177c0ea7 JB |
1230 | } |
1231 | ||
f332b293 GV |
1232 | return (NULL); |
1233 | } | |
1234 | ||
75b08edb GV |
1235 | char *get_emacs_configuration (void); |
1236 | extern Lisp_Object Vsystem_configuration; | |
1237 | ||
f332b293 | 1238 | void |
aa7b87b0 | 1239 | init_environment (char ** argv) |
f332b293 | 1240 | { |
b3308d2e KH |
1241 | static const char * const tempdirs[] = { |
1242 | "$TMPDIR", "$TEMP", "$TMP", "c:/" | |
1243 | }; | |
2d5324c5 | 1244 | |
b3308d2e | 1245 | int i; |
2d5324c5 | 1246 | |
b3308d2e KH |
1247 | const int imax = sizeof (tempdirs) / sizeof (tempdirs[0]); |
1248 | ||
1249 | /* Make sure they have a usable $TMPDIR. Many Emacs functions use | |
1250 | temporary files and assume "/tmp" if $TMPDIR is unset, which | |
1251 | will break on DOS/Windows. Refuse to work if we cannot find | |
1252 | a directory, not even "c:/", usable for that purpose. */ | |
1253 | for (i = 0; i < imax ; i++) | |
1254 | { | |
1255 | const char *tmp = tempdirs[i]; | |
1256 | ||
1257 | if (*tmp == '$') | |
1258 | tmp = getenv (tmp + 1); | |
1259 | /* Note that `access' can lie to us if the directory resides on a | |
1260 | read-only filesystem, like CD-ROM or a write-protected floppy. | |
1261 | The only way to be really sure is to actually create a file and | |
1262 | see if it succeeds. But I think that's too much to ask. */ | |
a302c7ae | 1263 | if (tmp && _access (tmp, D_OK) == 0) |
b3308d2e KH |
1264 | { |
1265 | char * var = alloca (strlen (tmp) + 8); | |
1266 | sprintf (var, "TMPDIR=%s", tmp); | |
aca583b2 | 1267 | _putenv (strdup (var)); |
b3308d2e KH |
1268 | break; |
1269 | } | |
1270 | } | |
1271 | if (i >= imax) | |
1272 | cmd_error_internal | |
1273 | (Fcons (Qerror, | |
1274 | Fcons (build_string ("no usable temporary directories found!!"), | |
1275 | Qnil)), | |
1276 | "While setting TMPDIR: "); | |
1277 | ||
ca149beb AI |
1278 | /* Check for environment variables and use registry settings if they |
1279 | don't exist. Fallback on default values where applicable. */ | |
f332b293 | 1280 | { |
480b0c5b GV |
1281 | int i; |
1282 | LPBYTE lpval; | |
1283 | DWORD dwType; | |
69fb0241 | 1284 | char locale_name[32]; |
2d5324c5 JR |
1285 | struct stat ignored; |
1286 | char default_home[MAX_PATH]; | |
f332b293 | 1287 | |
e00b99c8 | 1288 | static const struct env_entry |
ca149beb AI |
1289 | { |
1290 | char * name; | |
1291 | char * def_value; | |
e00b99c8 | 1292 | } dflt_envvars[] = |
ca149beb AI |
1293 | { |
1294 | {"HOME", "C:/"}, | |
1295 | {"PRELOAD_WINSOCK", NULL}, | |
1296 | {"emacs_dir", "C:/emacs"}, | |
cc14250a | 1297 | {"EMACSLOADPATH", "%emacs_dir%/site-lisp;%emacs_dir%/../site-lisp;%emacs_dir%/lisp;%emacs_dir%/leim"}, |
ca149beb AI |
1298 | {"SHELL", "%emacs_dir%/bin/cmdproxy.exe"}, |
1299 | {"EMACSDATA", "%emacs_dir%/etc"}, | |
1300 | {"EMACSPATH", "%emacs_dir%/bin"}, | |
76b3903d | 1301 | /* We no longer set INFOPATH because Info-default-directory-list |
ca149beb AI |
1302 | is then ignored. */ |
1303 | /* {"INFOPATH", "%emacs_dir%/info"}, */ | |
1304 | {"EMACSDOC", "%emacs_dir%/etc"}, | |
69fb0241 JR |
1305 | {"TERM", "cmd"}, |
1306 | {"LANG", NULL}, | |
480b0c5b GV |
1307 | }; |
1308 | ||
e00b99c8 EZ |
1309 | #define N_ENV_VARS sizeof(dflt_envvars)/sizeof(dflt_envvars[0]) |
1310 | ||
1311 | /* We need to copy dflt_envvars[] and work on the copy because we | |
1312 | don't want the dumped Emacs to inherit the values of | |
1313 | environment variables we saw during dumping (which could be on | |
1314 | a different system). The defaults above must be left intact. */ | |
1315 | struct env_entry env_vars[N_ENV_VARS]; | |
1316 | ||
1317 | for (i = 0; i < N_ENV_VARS; i++) | |
1318 | env_vars[i] = dflt_envvars[i]; | |
1319 | ||
2d5324c5 JR |
1320 | /* For backwards compatibility, check if a .emacs file exists in C:/ |
1321 | If not, then we can try to default to the appdata directory under the | |
1322 | user's profile, which is more likely to be writable. */ | |
1323 | if (stat ("C:/.emacs", &ignored) < 0) | |
1324 | { | |
1325 | HRESULT profile_result; | |
1326 | /* Dynamically load ShGetFolderPath, as it won't exist on versions | |
1327 | of Windows 95 and NT4 that have not been updated to include | |
1328 | MSIE 5. Also we don't link with shell32.dll by default. */ | |
1329 | HMODULE shell32_dll; | |
1330 | ShGetFolderPath_fn get_folder_path; | |
1331 | shell32_dll = GetModuleHandle ("shell32.dll"); | |
1332 | get_folder_path = (ShGetFolderPath_fn) | |
1333 | GetProcAddress (shell32_dll, "SHGetFolderPathA"); | |
1334 | ||
1335 | if (get_folder_path != NULL) | |
1336 | { | |
1337 | profile_result = get_folder_path (NULL, CSIDL_APPDATA, NULL, | |
1338 | 0, default_home); | |
1339 | ||
fffa137c | 1340 | /* If we can't get the appdata dir, revert to old behavior. */ |
2d5324c5 JR |
1341 | if (profile_result == S_OK) |
1342 | env_vars[0].def_value = default_home; | |
1343 | } | |
1344 | ||
1345 | /* Unload shell32.dll, it is not needed anymore. */ | |
1346 | FreeLibrary (shell32_dll); | |
1347 | } | |
1348 | ||
69fb0241 JR |
1349 | /* Get default locale info and use it for LANG. */ |
1350 | if (GetLocaleInfo (LOCALE_USER_DEFAULT, | |
1351 | LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP, | |
1352 | locale_name, sizeof (locale_name))) | |
1353 | { | |
e00b99c8 | 1354 | for (i = 0; i < N_ENV_VARS; i++) |
69fb0241 JR |
1355 | { |
1356 | if (strcmp (env_vars[i].name, "LANG") == 0) | |
1357 | { | |
1358 | env_vars[i].def_value = locale_name; | |
1359 | break; | |
1360 | } | |
1361 | } | |
1362 | } | |
1363 | ||
ca149beb AI |
1364 | #define SET_ENV_BUF_SIZE (4 * MAX_PATH) /* to cover EMACSLOADPATH */ |
1365 | ||
1366 | /* Treat emacs_dir specially: set it unconditionally based on our | |
1367 | location, if it appears that we are running from the bin subdir | |
1368 | of a standard installation. */ | |
1369 | { | |
1370 | char *p; | |
1371 | char modname[MAX_PATH]; | |
1372 | ||
1373 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) | |
1374 | abort (); | |
1375 | if ((p = strrchr (modname, '\\')) == NULL) | |
1376 | abort (); | |
1377 | *p = 0; | |
1378 | ||
05131107 | 1379 | if ((p = strrchr (modname, '\\')) && xstrcasecmp (p, "\\bin") == 0) |
ca149beb AI |
1380 | { |
1381 | char buf[SET_ENV_BUF_SIZE]; | |
1382 | ||
1383 | *p = 0; | |
1384 | for (p = modname; *p; p++) | |
1385 | if (*p == '\\') *p = '/'; | |
177c0ea7 | 1386 | |
ca149beb | 1387 | _snprintf (buf, sizeof(buf)-1, "emacs_dir=%s", modname); |
a302c7ae | 1388 | _putenv (strdup (buf)); |
ca149beb | 1389 | } |
950090be JR |
1390 | /* Handle running emacs from the build directory: src/oo-spd/i386/ */ |
1391 | ||
1392 | /* FIXME: should use substring of get_emacs_configuration (). | |
1393 | But I don't think the Windows build supports alpha, mips etc | |
1394 | anymore, so have taken the easy option for now. */ | |
05131107 | 1395 | else if (p && xstrcasecmp (p, "\\i386") == 0) |
950090be JR |
1396 | { |
1397 | *p = 0; | |
1398 | p = strrchr (modname, '\\'); | |
1399 | if (p != NULL) | |
1400 | { | |
1401 | *p = 0; | |
1402 | p = strrchr (modname, '\\'); | |
05131107 | 1403 | if (p && xstrcasecmp (p, "\\src") == 0) |
950090be JR |
1404 | { |
1405 | char buf[SET_ENV_BUF_SIZE]; | |
1406 | ||
1407 | *p = 0; | |
1408 | for (p = modname; *p; p++) | |
1409 | if (*p == '\\') *p = '/'; | |
1410 | ||
1411 | _snprintf (buf, sizeof(buf)-1, "emacs_dir=%s", modname); | |
1412 | _putenv (strdup (buf)); | |
1413 | } | |
1414 | } | |
1415 | } | |
ca149beb AI |
1416 | } |
1417 | ||
e00b99c8 | 1418 | for (i = 0; i < N_ENV_VARS; i++) |
f332b293 | 1419 | { |
ca149beb | 1420 | if (!getenv (env_vars[i].name)) |
480b0c5b | 1421 | { |
ca149beb | 1422 | int dont_free = 0; |
480b0c5b | 1423 | |
aa5ee2a3 JB |
1424 | if ((lpval = w32_get_resource (env_vars[i].name, &dwType)) == NULL |
1425 | /* Also ignore empty environment variables. */ | |
1426 | || *lpval == 0) | |
ca149beb | 1427 | { |
70fdbb46 | 1428 | xfree (lpval); |
ca149beb AI |
1429 | lpval = env_vars[i].def_value; |
1430 | dwType = REG_EXPAND_SZ; | |
1431 | dont_free = 1; | |
480b0c5b | 1432 | } |
ca149beb AI |
1433 | |
1434 | if (lpval) | |
480b0c5b | 1435 | { |
892eb237 | 1436 | char buf1[SET_ENV_BUF_SIZE], buf2[SET_ENV_BUF_SIZE]; |
ca149beb | 1437 | |
892eb237 EZ |
1438 | if (dwType == REG_EXPAND_SZ) |
1439 | ExpandEnvironmentStrings ((LPSTR) lpval, buf1, sizeof(buf1)); | |
ca149beb | 1440 | else if (dwType == REG_SZ) |
892eb237 EZ |
1441 | strcpy (buf1, lpval); |
1442 | if (dwType == REG_EXPAND_SZ || dwType == REG_SZ) | |
ca149beb | 1443 | { |
892eb237 EZ |
1444 | _snprintf (buf2, sizeof(buf2)-1, "%s=%s", env_vars[i].name, |
1445 | buf1); | |
1446 | _putenv (strdup (buf2)); | |
ca149beb | 1447 | } |
f332b293 | 1448 | |
ca149beb AI |
1449 | if (!dont_free) |
1450 | xfree (lpval); | |
1451 | } | |
480b0c5b GV |
1452 | } |
1453 | } | |
1454 | } | |
1455 | ||
75b08edb GV |
1456 | /* Rebuild system configuration to reflect invoking system. */ |
1457 | Vsystem_configuration = build_string (EMACS_CONFIGURATION); | |
1458 | ||
76b3903d GV |
1459 | /* Another special case: on NT, the PATH variable is actually named |
1460 | "Path" although cmd.exe (perhaps NT itself) arranges for | |
1461 | environment variable lookup and setting to be case insensitive. | |
1462 | However, Emacs assumes a fully case sensitive environment, so we | |
1463 | need to change "Path" to "PATH" to match the expectations of | |
1464 | various elisp packages. We do this by the sneaky method of | |
1465 | modifying the string in the C runtime environ entry. | |
1466 | ||
1467 | The same applies to COMSPEC. */ | |
1468 | { | |
1469 | char ** envp; | |
1470 | ||
1471 | for (envp = environ; *envp; envp++) | |
1472 | if (_strnicmp (*envp, "PATH=", 5) == 0) | |
1473 | memcpy (*envp, "PATH=", 5); | |
1474 | else if (_strnicmp (*envp, "COMSPEC=", 8) == 0) | |
1475 | memcpy (*envp, "COMSPEC=", 8); | |
1476 | } | |
1477 | ||
1478 | /* Remember the initial working directory for getwd, then make the | |
1479 | real wd be the location of emacs.exe to avoid conflicts when | |
1480 | renaming or deleting directories. (We also don't call chdir when | |
1481 | running subprocesses for the same reason.) */ | |
1482 | if (!GetCurrentDirectory (MAXPATHLEN, startup_dir)) | |
1483 | abort (); | |
1484 | ||
1485 | { | |
1486 | char *p; | |
aa7b87b0 | 1487 | static char modname[MAX_PATH]; |
76b3903d GV |
1488 | |
1489 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) | |
1490 | abort (); | |
1491 | if ((p = strrchr (modname, '\\')) == NULL) | |
1492 | abort (); | |
1493 | *p = 0; | |
1494 | ||
1495 | SetCurrentDirectory (modname); | |
aa7b87b0 AI |
1496 | |
1497 | /* Ensure argv[0] has the full path to Emacs. */ | |
1498 | *p = '\\'; | |
1499 | argv[0] = modname; | |
76b3903d GV |
1500 | } |
1501 | ||
20af4831 JR |
1502 | /* Determine if there is a middle mouse button, to allow parse_button |
1503 | to decide whether right mouse events should be mouse-2 or | |
1504 | mouse-3. */ | |
e0c181dd | 1505 | w32_num_mouse_buttons = GetSystemMetrics (SM_CMOUSEBUTTONS); |
20af4831 | 1506 | |
480b0c5b GV |
1507 | init_user_info (); |
1508 | } | |
1509 | ||
bf794306 EZ |
1510 | char * |
1511 | emacs_root_dir (void) | |
1512 | { | |
1513 | static char root_dir[FILENAME_MAX]; | |
1514 | const char *p; | |
1515 | ||
1516 | p = getenv ("emacs_dir"); | |
1517 | if (p == NULL) | |
1518 | abort (); | |
1519 | strcpy (root_dir, p); | |
1520 | root_dir[parse_root (root_dir, NULL)] = '\0'; | |
1521 | dostounix_filename (root_dir); | |
1522 | return root_dir; | |
1523 | } | |
1524 | ||
480b0c5b GV |
1525 | /* We don't have scripts to automatically determine the system configuration |
1526 | for Emacs before it's compiled, and we don't want to have to make the | |
1527 | user enter it, so we define EMACS_CONFIGURATION to invoke this runtime | |
1528 | routine. */ | |
1529 | ||
480b0c5b GV |
1530 | char * |
1531 | get_emacs_configuration (void) | |
1532 | { | |
1533 | char *arch, *oem, *os; | |
c5247da2 | 1534 | int build_num; |
a302c7ae | 1535 | static char configuration_buffer[32]; |
480b0c5b GV |
1536 | |
1537 | /* Determine the processor type. */ | |
177c0ea7 | 1538 | switch (get_processor_type ()) |
480b0c5b GV |
1539 | { |
1540 | ||
1541 | #ifdef PROCESSOR_INTEL_386 | |
1542 | case PROCESSOR_INTEL_386: | |
1543 | case PROCESSOR_INTEL_486: | |
1544 | case PROCESSOR_INTEL_PENTIUM: | |
1545 | arch = "i386"; | |
1546 | break; | |
1547 | #endif | |
1548 | ||
480b0c5b GV |
1549 | #ifdef PROCESSOR_MIPS_R2000 |
1550 | case PROCESSOR_MIPS_R2000: | |
1551 | case PROCESSOR_MIPS_R3000: | |
1552 | case PROCESSOR_MIPS_R4000: | |
1553 | arch = "mips"; | |
1554 | break; | |
1555 | #endif | |
1556 | ||
1557 | #ifdef PROCESSOR_ALPHA_21064 | |
1558 | case PROCESSOR_ALPHA_21064: | |
1559 | arch = "alpha"; | |
1560 | break; | |
1561 | #endif | |
1562 | ||
1563 | default: | |
1564 | arch = "unknown"; | |
1565 | break; | |
f332b293 | 1566 | } |
480b0c5b | 1567 | |
a302c7ae AI |
1568 | /* Use the OEM field to reflect the compiler/library combination. */ |
1569 | #ifdef _MSC_VER | |
1570 | #define COMPILER_NAME "msvc" | |
1571 | #else | |
1572 | #ifdef __GNUC__ | |
1573 | #define COMPILER_NAME "mingw" | |
1574 | #else | |
1575 | #define COMPILER_NAME "unknown" | |
1576 | #endif | |
1577 | #endif | |
1578 | oem = COMPILER_NAME; | |
480b0c5b | 1579 | |
c5247da2 GV |
1580 | switch (osinfo_cache.dwPlatformId) { |
1581 | case VER_PLATFORM_WIN32_NT: | |
1582 | os = "nt"; | |
1583 | build_num = osinfo_cache.dwBuildNumber; | |
1584 | break; | |
1585 | case VER_PLATFORM_WIN32_WINDOWS: | |
1586 | if (osinfo_cache.dwMinorVersion == 0) { | |
1587 | os = "windows95"; | |
1588 | } else { | |
1589 | os = "windows98"; | |
1590 | } | |
1591 | build_num = LOWORD (osinfo_cache.dwBuildNumber); | |
1592 | break; | |
1593 | case VER_PLATFORM_WIN32s: | |
1594 | /* Not supported, should not happen. */ | |
1595 | os = "windows32s"; | |
1596 | build_num = LOWORD (osinfo_cache.dwBuildNumber); | |
1597 | break; | |
1598 | default: | |
1599 | os = "unknown"; | |
1600 | build_num = 0; | |
1601 | break; | |
1602 | } | |
1603 | ||
1604 | if (osinfo_cache.dwPlatformId == VER_PLATFORM_WIN32_NT) { | |
1605 | sprintf (configuration_buffer, "%s-%s-%s%d.%d.%d", arch, oem, os, | |
1606 | get_w32_major_version (), get_w32_minor_version (), build_num); | |
1607 | } else { | |
1608 | sprintf (configuration_buffer, "%s-%s-%s.%d", arch, oem, os, build_num); | |
1609 | } | |
480b0c5b | 1610 | |
480b0c5b | 1611 | return configuration_buffer; |
f332b293 GV |
1612 | } |
1613 | ||
a302c7ae AI |
1614 | char * |
1615 | get_emacs_configuration_options (void) | |
1616 | { | |
1617 | static char options_buffer[256]; | |
1618 | ||
1619 | /* Work out the effective configure options for this build. */ | |
1620 | #ifdef _MSC_VER | |
1621 | #define COMPILER_VERSION "--with-msvc (%d.%02d)", _MSC_VER / 100, _MSC_VER % 100 | |
1622 | #else | |
1623 | #ifdef __GNUC__ | |
1624 | #define COMPILER_VERSION "--with-gcc (%d.%d)", __GNUC__, __GNUC_MINOR__ | |
1625 | #else | |
1626 | #define COMPILER_VERSION "" | |
1627 | #endif | |
1628 | #endif | |
1629 | ||
1630 | sprintf (options_buffer, COMPILER_VERSION); | |
1631 | #ifdef EMACSDEBUG | |
1632 | strcat (options_buffer, " --no-opt"); | |
1633 | #endif | |
1634 | #ifdef USER_CFLAGS | |
1635 | strcat (options_buffer, " --cflags"); | |
1636 | strcat (options_buffer, USER_CFLAGS); | |
1637 | #endif | |
1638 | #ifdef USER_LDFLAGS | |
1639 | strcat (options_buffer, " --ldflags"); | |
1640 | strcat (options_buffer, USER_LDFLAGS); | |
1641 | #endif | |
1642 | return options_buffer; | |
1643 | } | |
1644 | ||
1645 | ||
35f0d482 KH |
1646 | #include <sys/timeb.h> |
1647 | ||
1648 | /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */ | |
177c0ea7 | 1649 | void |
35f0d482 KH |
1650 | gettimeofday (struct timeval *tv, struct timezone *tz) |
1651 | { | |
6e602566 | 1652 | struct _timeb tb; |
35f0d482 KH |
1653 | _ftime (&tb); |
1654 | ||
1655 | tv->tv_sec = tb.time; | |
1656 | tv->tv_usec = tb.millitm * 1000L; | |
177c0ea7 | 1657 | if (tz) |
35f0d482 KH |
1658 | { |
1659 | tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */ | |
1660 | tz->tz_dsttime = tb.dstflag; /* type of dst correction */ | |
1661 | } | |
1662 | } | |
35f0d482 | 1663 | |
480b0c5b | 1664 | /* ------------------------------------------------------------------------- */ |
fbd6baed | 1665 | /* IO support and wrapper functions for W32 API. */ |
480b0c5b | 1666 | /* ------------------------------------------------------------------------- */ |
95ed0025 | 1667 | |
480b0c5b | 1668 | /* Place a wrapper around the MSVC version of ctime. It returns NULL |
177c0ea7 | 1669 | on network directories, so we handle that case here. |
480b0c5b GV |
1670 | (Ulrich Leodolter, 1/11/95). */ |
1671 | char * | |
1672 | sys_ctime (const time_t *t) | |
1673 | { | |
1674 | char *str = (char *) ctime (t); | |
1675 | return (str ? str : "Sun Jan 01 00:00:00 1970"); | |
1676 | } | |
1677 | ||
1678 | /* Emulate sleep...we could have done this with a define, but that | |
1679 | would necessitate including windows.h in the files that used it. | |
1680 | This is much easier. */ | |
1681 | void | |
1682 | sys_sleep (int seconds) | |
1683 | { | |
1684 | Sleep (seconds * 1000); | |
1685 | } | |
1686 | ||
76b3903d | 1687 | /* Internal MSVC functions for low-level descriptor munging */ |
480b0c5b GV |
1688 | extern int __cdecl _set_osfhnd (int fd, long h); |
1689 | extern int __cdecl _free_osfhnd (int fd); | |
1690 | ||
1691 | /* parallel array of private info on file handles */ | |
1692 | filedesc fd_info [ MAXDESC ]; | |
1693 | ||
76b3903d GV |
1694 | typedef struct volume_info_data { |
1695 | struct volume_info_data * next; | |
1696 | ||
1697 | /* time when info was obtained */ | |
1698 | DWORD timestamp; | |
1699 | ||
1700 | /* actual volume info */ | |
1701 | char * root_dir; | |
480b0c5b GV |
1702 | DWORD serialnum; |
1703 | DWORD maxcomp; | |
1704 | DWORD flags; | |
76b3903d GV |
1705 | char * name; |
1706 | char * type; | |
1707 | } volume_info_data; | |
1708 | ||
1709 | /* Global referenced by various functions. */ | |
1710 | static volume_info_data volume_info; | |
1711 | ||
1712 | /* Vector to indicate which drives are local and fixed (for which cached | |
1713 | data never expires). */ | |
1714 | static BOOL fixed_drives[26]; | |
1715 | ||
1716 | /* Consider cached volume information to be stale if older than 10s, | |
1717 | at least for non-local drives. Info for fixed drives is never stale. */ | |
1718 | #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' ) | |
1719 | #define VOLINFO_STILL_VALID( root_dir, info ) \ | |
1720 | ( ( isalpha (root_dir[0]) && \ | |
1721 | fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \ | |
1722 | || GetTickCount () - info->timestamp < 10000 ) | |
1723 | ||
1724 | /* Cache support functions. */ | |
1725 | ||
1726 | /* Simple linked list with linear search is sufficient. */ | |
1727 | static volume_info_data *volume_cache = NULL; | |
1728 | ||
1729 | static volume_info_data * | |
1730 | lookup_volume_info (char * root_dir) | |
1731 | { | |
1732 | volume_info_data * info; | |
1733 | ||
1734 | for (info = volume_cache; info; info = info->next) | |
05131107 | 1735 | if (xstrcasecmp (info->root_dir, root_dir) == 0) |
76b3903d GV |
1736 | break; |
1737 | return info; | |
1738 | } | |
1739 | ||
1740 | static void | |
1741 | add_volume_info (char * root_dir, volume_info_data * info) | |
1742 | { | |
a302c7ae | 1743 | info->root_dir = xstrdup (root_dir); |
76b3903d GV |
1744 | info->next = volume_cache; |
1745 | volume_cache = info; | |
1746 | } | |
1747 | ||
1748 | ||
1749 | /* Wrapper for GetVolumeInformation, which uses caching to avoid | |
1750 | performance penalty (~2ms on 486 for local drives, 7.5ms for local | |
1751 | cdrom drive, ~5-10ms or more for remote drives on LAN). */ | |
1752 | volume_info_data * | |
1753 | GetCachedVolumeInformation (char * root_dir) | |
1754 | { | |
1755 | volume_info_data * info; | |
1756 | char default_root[ MAX_PATH ]; | |
1757 | ||
1758 | /* NULL for root_dir means use root from current directory. */ | |
1759 | if (root_dir == NULL) | |
1760 | { | |
1761 | if (GetCurrentDirectory (MAX_PATH, default_root) == 0) | |
1762 | return NULL; | |
1763 | parse_root (default_root, &root_dir); | |
1764 | *root_dir = 0; | |
1765 | root_dir = default_root; | |
1766 | } | |
1767 | ||
1768 | /* Local fixed drives can be cached permanently. Removable drives | |
1769 | cannot be cached permanently, since the volume name and serial | |
1770 | number (if nothing else) can change. Remote drives should be | |
1771 | treated as if they are removable, since there is no sure way to | |
1772 | tell whether they are or not. Also, the UNC association of drive | |
1773 | letters mapped to remote volumes can be changed at any time (even | |
1774 | by other processes) without notice. | |
177c0ea7 | 1775 | |
76b3903d GV |
1776 | As a compromise, so we can benefit from caching info for remote |
1777 | volumes, we use a simple expiry mechanism to invalidate cache | |
1778 | entries that are more than ten seconds old. */ | |
1779 | ||
1780 | #if 0 | |
1781 | /* No point doing this, because WNetGetConnection is even slower than | |
1782 | GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW, | |
1783 | GetDriveType is about the only call of this type which does not | |
1784 | involve network access, and so is extremely quick). */ | |
1785 | ||
1786 | /* Map drive letter to UNC if remote. */ | |
1787 | if ( isalpha( root_dir[0] ) && !fixed[ DRIVE_INDEX( root_dir[0] ) ] ) | |
1788 | { | |
1789 | char remote_name[ 256 ]; | |
1790 | char drive[3] = { root_dir[0], ':' }; | |
1791 | ||
1792 | if (WNetGetConnection (drive, remote_name, sizeof (remote_name)) | |
1793 | == NO_ERROR) | |
1794 | /* do something */ ; | |
1795 | } | |
1796 | #endif | |
1797 | ||
1798 | info = lookup_volume_info (root_dir); | |
1799 | ||
1800 | if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info)) | |
1801 | { | |
1802 | char name[ 256 ]; | |
1803 | DWORD serialnum; | |
1804 | DWORD maxcomp; | |
1805 | DWORD flags; | |
1806 | char type[ 256 ]; | |
1807 | ||
1808 | /* Info is not cached, or is stale. */ | |
1809 | if (!GetVolumeInformation (root_dir, | |
1810 | name, sizeof (name), | |
1811 | &serialnum, | |
1812 | &maxcomp, | |
1813 | &flags, | |
1814 | type, sizeof (type))) | |
1815 | return NULL; | |
1816 | ||
1817 | /* Cache the volume information for future use, overwriting existing | |
1818 | entry if present. */ | |
1819 | if (info == NULL) | |
1820 | { | |
1821 | info = (volume_info_data *) xmalloc (sizeof (volume_info_data)); | |
1822 | add_volume_info (root_dir, info); | |
1823 | } | |
1824 | else | |
1825 | { | |
a302c7ae AI |
1826 | xfree (info->name); |
1827 | xfree (info->type); | |
76b3903d GV |
1828 | } |
1829 | ||
a302c7ae | 1830 | info->name = xstrdup (name); |
76b3903d GV |
1831 | info->serialnum = serialnum; |
1832 | info->maxcomp = maxcomp; | |
1833 | info->flags = flags; | |
a302c7ae | 1834 | info->type = xstrdup (type); |
76b3903d GV |
1835 | info->timestamp = GetTickCount (); |
1836 | } | |
1837 | ||
1838 | return info; | |
1839 | } | |
480b0c5b GV |
1840 | |
1841 | /* Get information on the volume where name is held; set path pointer to | |
1842 | start of pathname in name (past UNC header\volume header if present). */ | |
1843 | int | |
1844 | get_volume_info (const char * name, const char ** pPath) | |
95ed0025 | 1845 | { |
480b0c5b GV |
1846 | char temp[MAX_PATH]; |
1847 | char *rootname = NULL; /* default to current volume */ | |
76b3903d | 1848 | volume_info_data * info; |
480b0c5b GV |
1849 | |
1850 | if (name == NULL) | |
1851 | return FALSE; | |
1852 | ||
1853 | /* find the root name of the volume if given */ | |
1854 | if (isalpha (name[0]) && name[1] == ':') | |
1855 | { | |
1856 | rootname = temp; | |
1857 | temp[0] = *name++; | |
1858 | temp[1] = *name++; | |
1859 | temp[2] = '\\'; | |
1860 | temp[3] = 0; | |
1861 | } | |
1862 | else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1])) | |
95ed0025 | 1863 | { |
480b0c5b GV |
1864 | char *str = temp; |
1865 | int slashes = 4; | |
1866 | rootname = temp; | |
1867 | do | |
1868 | { | |
1869 | if (IS_DIRECTORY_SEP (*name) && --slashes == 0) | |
1870 | break; | |
1871 | *str++ = *name++; | |
1872 | } | |
1873 | while ( *name ); | |
1874 | ||
480b0c5b GV |
1875 | *str++ = '\\'; |
1876 | *str = 0; | |
95ed0025 | 1877 | } |
480b0c5b GV |
1878 | |
1879 | if (pPath) | |
1880 | *pPath = name; | |
177c0ea7 | 1881 | |
76b3903d GV |
1882 | info = GetCachedVolumeInformation (rootname); |
1883 | if (info != NULL) | |
95ed0025 | 1884 | { |
76b3903d GV |
1885 | /* Set global referenced by other functions. */ |
1886 | volume_info = *info; | |
480b0c5b | 1887 | return TRUE; |
95ed0025 | 1888 | } |
480b0c5b GV |
1889 | return FALSE; |
1890 | } | |
1891 | ||
1892 | /* Determine if volume is FAT format (ie. only supports short 8.3 | |
1893 | names); also set path pointer to start of pathname in name. */ | |
1894 | int | |
1895 | is_fat_volume (const char * name, const char ** pPath) | |
1896 | { | |
1897 | if (get_volume_info (name, pPath)) | |
1898 | return (volume_info.maxcomp == 12); | |
1899 | return FALSE; | |
1900 | } | |
1901 | ||
4d90eee4 | 1902 | /* Map filename to a valid 8.3 name if necessary. */ |
480b0c5b | 1903 | const char * |
fbd6baed | 1904 | map_w32_filename (const char * name, const char ** pPath) |
480b0c5b GV |
1905 | { |
1906 | static char shortname[MAX_PATH]; | |
1907 | char * str = shortname; | |
1908 | char c; | |
480b0c5b | 1909 | char * path; |
76b3903d | 1910 | const char * save_name = name; |
480b0c5b | 1911 | |
ca149beb AI |
1912 | if (strlen (name) >= MAX_PATH) |
1913 | { | |
1914 | /* Return a filename which will cause callers to fail. */ | |
1915 | strcpy (shortname, "?"); | |
1916 | return shortname; | |
1917 | } | |
1918 | ||
a302c7ae | 1919 | if (is_fat_volume (name, (const char **)&path)) /* truncate to 8.3 */ |
95ed0025 | 1920 | { |
480b0c5b GV |
1921 | register int left = 8; /* maximum number of chars in part */ |
1922 | register int extn = 0; /* extension added? */ | |
1923 | register int dots = 2; /* maximum number of dots allowed */ | |
1924 | ||
1925 | while (name < path) | |
1926 | *str++ = *name++; /* skip past UNC header */ | |
1927 | ||
1928 | while ((c = *name++)) | |
1929 | { | |
1930 | switch ( c ) | |
1931 | { | |
1932 | case '\\': | |
1933 | case '/': | |
1934 | *str++ = '\\'; | |
1935 | extn = 0; /* reset extension flags */ | |
1936 | dots = 2; /* max 2 dots */ | |
1937 | left = 8; /* max length 8 for main part */ | |
1938 | break; | |
1939 | case ':': | |
1940 | *str++ = ':'; | |
1941 | extn = 0; /* reset extension flags */ | |
1942 | dots = 2; /* max 2 dots */ | |
1943 | left = 8; /* max length 8 for main part */ | |
1944 | break; | |
1945 | case '.': | |
1946 | if ( dots ) | |
1947 | { | |
1948 | /* Convert path components of the form .xxx to _xxx, | |
1949 | but leave . and .. as they are. This allows .emacs | |
1950 | to be read as _emacs, for example. */ | |
1951 | ||
1952 | if (! *name || | |
1953 | *name == '.' || | |
1954 | IS_DIRECTORY_SEP (*name)) | |
1955 | { | |
1956 | *str++ = '.'; | |
1957 | dots--; | |
1958 | } | |
1959 | else | |
1960 | { | |
1961 | *str++ = '_'; | |
1962 | left--; | |
1963 | dots = 0; | |
1964 | } | |
1965 | } | |
1966 | else if ( !extn ) | |
1967 | { | |
1968 | *str++ = '.'; | |
1969 | extn = 1; /* we've got an extension */ | |
1970 | left = 3; /* 3 chars in extension */ | |
1971 | } | |
1972 | else | |
1973 | { | |
1974 | /* any embedded dots after the first are converted to _ */ | |
1975 | *str++ = '_'; | |
1976 | } | |
1977 | break; | |
1978 | case '~': | |
1979 | case '#': /* don't lose these, they're important */ | |
1980 | if ( ! left ) | |
1981 | str[-1] = c; /* replace last character of part */ | |
1982 | /* FALLTHRU */ | |
1983 | default: | |
1984 | if ( left ) | |
1985 | { | |
1986 | *str++ = tolower (c); /* map to lower case (looks nicer) */ | |
1987 | left--; | |
1988 | dots = 0; /* started a path component */ | |
1989 | } | |
1990 | break; | |
1991 | } | |
1992 | } | |
1993 | *str = '\0'; | |
fc85cb29 RS |
1994 | } |
1995 | else | |
1996 | { | |
1997 | strcpy (shortname, name); | |
1998 | unixtodos_filename (shortname); | |
95ed0025 | 1999 | } |
480b0c5b GV |
2000 | |
2001 | if (pPath) | |
76b3903d | 2002 | *pPath = shortname + (path - save_name); |
480b0c5b | 2003 | |
fc85cb29 | 2004 | return shortname; |
480b0c5b GV |
2005 | } |
2006 | ||
b3308d2e KH |
2007 | static int |
2008 | is_exec (const char * name) | |
2009 | { | |
2010 | char * p = strrchr (name, '.'); | |
2011 | return | |
2012 | (p != NULL | |
05131107 JR |
2013 | && (xstrcasecmp (p, ".exe") == 0 || |
2014 | xstrcasecmp (p, ".com") == 0 || | |
2015 | xstrcasecmp (p, ".bat") == 0 || | |
2016 | xstrcasecmp (p, ".cmd") == 0)); | |
b3308d2e KH |
2017 | } |
2018 | ||
177c0ea7 | 2019 | /* Emulate the Unix directory procedures opendir, closedir, |
76b3903d GV |
2020 | and readdir. We can't use the procedures supplied in sysdep.c, |
2021 | so we provide them here. */ | |
2022 | ||
2023 | struct direct dir_static; /* simulated directory contents */ | |
2024 | static HANDLE dir_find_handle = INVALID_HANDLE_VALUE; | |
2025 | static int dir_is_fat; | |
2026 | static char dir_pathname[MAXPATHLEN+1]; | |
2027 | static WIN32_FIND_DATA dir_find_data; | |
2028 | ||
9d3355d1 GV |
2029 | /* Support shares on a network resource as subdirectories of a read-only |
2030 | root directory. */ | |
2031 | static HANDLE wnet_enum_handle = INVALID_HANDLE_VALUE; | |
e0c181dd | 2032 | HANDLE open_unc_volume (const char *); |
9d3355d1 GV |
2033 | char *read_unc_volume (HANDLE, char *, int); |
2034 | void close_unc_volume (HANDLE); | |
2035 | ||
76b3903d GV |
2036 | DIR * |
2037 | opendir (char *filename) | |
2038 | { | |
2039 | DIR *dirp; | |
2040 | ||
2041 | /* Opening is done by FindFirstFile. However, a read is inherent to | |
2042 | this operation, so we defer the open until read time. */ | |
2043 | ||
76b3903d GV |
2044 | if (dir_find_handle != INVALID_HANDLE_VALUE) |
2045 | return NULL; | |
9d3355d1 GV |
2046 | if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
2047 | return NULL; | |
2048 | ||
2049 | if (is_unc_volume (filename)) | |
2050 | { | |
2051 | wnet_enum_handle = open_unc_volume (filename); | |
2052 | if (wnet_enum_handle == INVALID_HANDLE_VALUE) | |
2053 | return NULL; | |
2054 | } | |
2055 | ||
2056 | if (!(dirp = (DIR *) malloc (sizeof (DIR)))) | |
2057 | return NULL; | |
76b3903d GV |
2058 | |
2059 | dirp->dd_fd = 0; | |
2060 | dirp->dd_loc = 0; | |
2061 | dirp->dd_size = 0; | |
2062 | ||
2063 | strncpy (dir_pathname, map_w32_filename (filename, NULL), MAXPATHLEN); | |
2064 | dir_pathname[MAXPATHLEN] = '\0'; | |
2065 | dir_is_fat = is_fat_volume (filename, NULL); | |
2066 | ||
2067 | return dirp; | |
2068 | } | |
2069 | ||
2070 | void | |
2071 | closedir (DIR *dirp) | |
2072 | { | |
2073 | /* If we have a find-handle open, close it. */ | |
2074 | if (dir_find_handle != INVALID_HANDLE_VALUE) | |
2075 | { | |
2076 | FindClose (dir_find_handle); | |
2077 | dir_find_handle = INVALID_HANDLE_VALUE; | |
2078 | } | |
9d3355d1 GV |
2079 | else if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
2080 | { | |
2081 | close_unc_volume (wnet_enum_handle); | |
2082 | wnet_enum_handle = INVALID_HANDLE_VALUE; | |
2083 | } | |
76b3903d GV |
2084 | xfree ((char *) dirp); |
2085 | } | |
2086 | ||
2087 | struct direct * | |
2088 | readdir (DIR *dirp) | |
2089 | { | |
b07103dc EZ |
2090 | int downcase = !NILP (Vw32_downcase_file_names); |
2091 | ||
9d3355d1 GV |
2092 | if (wnet_enum_handle != INVALID_HANDLE_VALUE) |
2093 | { | |
177c0ea7 JB |
2094 | if (!read_unc_volume (wnet_enum_handle, |
2095 | dir_find_data.cFileName, | |
9d3355d1 GV |
2096 | MAX_PATH)) |
2097 | return NULL; | |
2098 | } | |
76b3903d | 2099 | /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */ |
9d3355d1 | 2100 | else if (dir_find_handle == INVALID_HANDLE_VALUE) |
76b3903d GV |
2101 | { |
2102 | char filename[MAXNAMLEN + 3]; | |
2103 | int ln; | |
2104 | ||
2105 | strcpy (filename, dir_pathname); | |
2106 | ln = strlen (filename) - 1; | |
2107 | if (!IS_DIRECTORY_SEP (filename[ln])) | |
2108 | strcat (filename, "\\"); | |
2109 | strcat (filename, "*"); | |
2110 | ||
2111 | dir_find_handle = FindFirstFile (filename, &dir_find_data); | |
2112 | ||
2113 | if (dir_find_handle == INVALID_HANDLE_VALUE) | |
2114 | return NULL; | |
2115 | } | |
2116 | else | |
2117 | { | |
2118 | if (!FindNextFile (dir_find_handle, &dir_find_data)) | |
2119 | return NULL; | |
2120 | } | |
177c0ea7 | 2121 | |
76b3903d GV |
2122 | /* Emacs never uses this value, so don't bother making it match |
2123 | value returned by stat(). */ | |
2124 | dir_static.d_ino = 1; | |
177c0ea7 | 2125 | |
b07103dc EZ |
2126 | strcpy (dir_static.d_name, dir_find_data.cFileName); |
2127 | ||
2128 | /* If the file name in cFileName[] includes `?' characters, it means | |
2129 | the original file name used characters that cannot be represented | |
2130 | by the current ANSI codepage. To avoid total lossage, retrieve | |
2131 | the short 8+3 alias of the long file name. */ | |
2132 | if (_mbspbrk (dir_static.d_name, "?")) | |
2133 | { | |
2134 | strcpy (dir_static.d_name, dir_find_data.cAlternateFileName); | |
2135 | downcase = 1; /* 8+3 aliases are returned in all caps */ | |
2136 | } | |
2137 | dir_static.d_namlen = strlen (dir_static.d_name); | |
76b3903d GV |
2138 | dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 + |
2139 | dir_static.d_namlen - dir_static.d_namlen % 4; | |
177c0ea7 | 2140 | |
192788d7 EZ |
2141 | /* If the file name in cFileName[] includes `?' characters, it means |
2142 | the original file name used characters that cannot be represented | |
2143 | by the current ANSI codepage. To avoid total lossage, retrieve | |
2144 | the short 8+3 alias of the long file name. */ | |
2145 | if (_mbspbrk (dir_find_data.cFileName, "?")) | |
2146 | { | |
2147 | strcpy (dir_static.d_name, dir_find_data.cAlternateFileName); | |
2148 | /* 8+3 aliases are returned in all caps, which could break | |
2149 | various alists that look at filenames' extensions. */ | |
2150 | downcase = 1; | |
2151 | } | |
2152 | else | |
2153 | strcpy (dir_static.d_name, dir_find_data.cFileName); | |
2154 | dir_static.d_namlen = strlen (dir_static.d_name); | |
76b3903d GV |
2155 | if (dir_is_fat) |
2156 | _strlwr (dir_static.d_name); | |
b07103dc | 2157 | else if (downcase) |
76b3903d GV |
2158 | { |
2159 | register char *p; | |
2160 | for (p = dir_static.d_name; *p; p++) | |
2161 | if (*p >= 'a' && *p <= 'z') | |
2162 | break; | |
2163 | if (!*p) | |
2164 | _strlwr (dir_static.d_name); | |
2165 | } | |
177c0ea7 | 2166 | |
76b3903d GV |
2167 | return &dir_static; |
2168 | } | |
2169 | ||
9d3355d1 | 2170 | HANDLE |
e0c181dd | 2171 | open_unc_volume (const char *path) |
9d3355d1 | 2172 | { |
177c0ea7 | 2173 | NETRESOURCE nr; |
9d3355d1 GV |
2174 | HANDLE henum; |
2175 | int result; | |
2176 | ||
177c0ea7 JB |
2177 | nr.dwScope = RESOURCE_GLOBALNET; |
2178 | nr.dwType = RESOURCETYPE_DISK; | |
2179 | nr.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER; | |
2180 | nr.dwUsage = RESOURCEUSAGE_CONTAINER; | |
2181 | nr.lpLocalName = NULL; | |
6e602566 | 2182 | nr.lpRemoteName = (LPSTR)map_w32_filename (path, NULL); |
177c0ea7 JB |
2183 | nr.lpComment = NULL; |
2184 | nr.lpProvider = NULL; | |
9d3355d1 | 2185 | |
177c0ea7 | 2186 | result = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, |
9d3355d1 GV |
2187 | RESOURCEUSAGE_CONNECTABLE, &nr, &henum); |
2188 | ||
2189 | if (result == NO_ERROR) | |
2190 | return henum; | |
2191 | else | |
2192 | return INVALID_HANDLE_VALUE; | |
2193 | } | |
2194 | ||
2195 | char * | |
2196 | read_unc_volume (HANDLE henum, char *readbuf, int size) | |
2197 | { | |
a302c7ae | 2198 | DWORD count; |
9d3355d1 | 2199 | int result; |
a302c7ae | 2200 | DWORD bufsize = 512; |
9d3355d1 GV |
2201 | char *buffer; |
2202 | char *ptr; | |
2203 | ||
2204 | count = 1; | |
2205 | buffer = alloca (bufsize); | |
2206 | result = WNetEnumResource (wnet_enum_handle, &count, buffer, &bufsize); | |
2207 | if (result != NO_ERROR) | |
2208 | return NULL; | |
2209 | ||
2210 | /* WNetEnumResource returns \\resource\share...skip forward to "share". */ | |
2211 | ptr = ((LPNETRESOURCE) buffer)->lpRemoteName; | |
2212 | ptr += 2; | |
2213 | while (*ptr && !IS_DIRECTORY_SEP (*ptr)) ptr++; | |
2214 | ptr++; | |
2215 | ||
2216 | strncpy (readbuf, ptr, size); | |
2217 | return readbuf; | |
2218 | } | |
2219 | ||
2220 | void | |
2221 | close_unc_volume (HANDLE henum) | |
2222 | { | |
2223 | if (henum != INVALID_HANDLE_VALUE) | |
2224 | WNetCloseEnum (henum); | |
2225 | } | |
2226 | ||
2227 | DWORD | |
e0c181dd | 2228 | unc_volume_file_attributes (const char *path) |
9d3355d1 GV |
2229 | { |
2230 | HANDLE henum; | |
2231 | DWORD attrs; | |
2232 | ||
2233 | henum = open_unc_volume (path); | |
2234 | if (henum == INVALID_HANDLE_VALUE) | |
2235 | return -1; | |
2236 | ||
2237 | attrs = FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_DIRECTORY; | |
2238 | ||
2239 | close_unc_volume (henum); | |
2240 | ||
2241 | return attrs; | |
2242 | } | |
2243 | ||
302d7d54 JR |
2244 | /* Ensure a network connection is authenticated. */ |
2245 | static void | |
2246 | logon_network_drive (const char *path) | |
2247 | { | |
2248 | NETRESOURCE resource; | |
2249 | char share[MAX_PATH]; | |
2250 | int i, n_slashes; | |
40a339c8 JR |
2251 | char drive[4]; |
2252 | ||
2253 | sprintf (drive, "%c:\\", path[0]); | |
302d7d54 JR |
2254 | |
2255 | /* Only logon to networked drives. */ | |
40a339c8 JR |
2256 | if ((!IS_DIRECTORY_SEP (path[0]) || !IS_DIRECTORY_SEP (path[1])) |
2257 | && GetDriveType (drive) != DRIVE_REMOTE) | |
302d7d54 | 2258 | return; |
40a339c8 | 2259 | |
302d7d54 JR |
2260 | n_slashes = 2; |
2261 | strncpy (share, path, MAX_PATH); | |
2262 | /* Truncate to just server and share name. */ | |
2263 | for (i = 2; i < MAX_PATH; i++) | |
2264 | { | |
2265 | if (IS_DIRECTORY_SEP (share[i]) && ++n_slashes > 3) | |
2266 | { | |
2267 | share[i] = '\0'; | |
2268 | break; | |
2269 | } | |
2270 | } | |
2271 | ||
2272 | resource.dwType = RESOURCETYPE_DISK; | |
2273 | resource.lpLocalName = NULL; | |
2274 | resource.lpRemoteName = share; | |
2275 | resource.lpProvider = NULL; | |
2276 | ||
2277 | WNetAddConnection2 (&resource, NULL, NULL, CONNECT_INTERACTIVE); | |
2278 | } | |
480b0c5b GV |
2279 | |
2280 | /* Shadow some MSVC runtime functions to map requests for long filenames | |
2281 | to reasonable short names if necessary. This was originally added to | |
177c0ea7 | 2282 | permit running Emacs on NT 3.1 on a FAT partition, which doesn't support |
480b0c5b GV |
2283 | long file names. */ |
2284 | ||
2285 | int | |
2286 | sys_access (const char * path, int mode) | |
2287 | { | |
b3308d2e KH |
2288 | DWORD attributes; |
2289 | ||
2290 | /* MSVC implementation doesn't recognize D_OK. */ | |
2291 | path = map_w32_filename (path, NULL); | |
9d3355d1 GV |
2292 | if (is_unc_volume (path)) |
2293 | { | |
2294 | attributes = unc_volume_file_attributes (path); | |
2295 | if (attributes == -1) { | |
2296 | errno = EACCES; | |
2297 | return -1; | |
2298 | } | |
2299 | } | |
2300 | else if ((attributes = GetFileAttributes (path)) == -1) | |
b3308d2e KH |
2301 | { |
2302 | /* Should try mapping GetLastError to errno; for now just indicate | |
2303 | that path doesn't exist. */ | |
2304 | errno = EACCES; | |
2305 | return -1; | |
2306 | } | |
2307 | if ((mode & X_OK) != 0 && !is_exec (path)) | |
2308 | { | |
2309 | errno = EACCES; | |
2310 | return -1; | |
2311 | } | |
2312 | if ((mode & W_OK) != 0 && (attributes & FILE_ATTRIBUTE_READONLY) != 0) | |
2313 | { | |
2314 | errno = EACCES; | |
2315 | return -1; | |
2316 | } | |
2317 | if ((mode & D_OK) != 0 && (attributes & FILE_ATTRIBUTE_DIRECTORY) == 0) | |
2318 | { | |
2319 | errno = EACCES; | |
2320 | return -1; | |
2321 | } | |
2322 | return 0; | |
480b0c5b GV |
2323 | } |
2324 | ||
2325 | int | |
2326 | sys_chdir (const char * path) | |
2327 | { | |
fbd6baed | 2328 | return _chdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2329 | } |
2330 | ||
2331 | int | |
2332 | sys_chmod (const char * path, int mode) | |
2333 | { | |
fbd6baed | 2334 | return _chmod (map_w32_filename (path, NULL), mode); |
480b0c5b GV |
2335 | } |
2336 | ||
2d5ab4bf EZ |
2337 | int |
2338 | sys_chown (const char *path, uid_t owner, gid_t group) | |
2339 | { | |
e3b88685 | 2340 | if (sys_chmod (path, S_IREAD) == -1) /* check if file exists */ |
2d5ab4bf EZ |
2341 | return -1; |
2342 | return 0; | |
2343 | } | |
2344 | ||
480b0c5b GV |
2345 | int |
2346 | sys_creat (const char * path, int mode) | |
2347 | { | |
fbd6baed | 2348 | return _creat (map_w32_filename (path, NULL), mode); |
480b0c5b GV |
2349 | } |
2350 | ||
2351 | FILE * | |
2352 | sys_fopen(const char * path, const char * mode) | |
2353 | { | |
2354 | int fd; | |
2355 | int oflag; | |
2356 | const char * mode_save = mode; | |
2357 | ||
2358 | /* Force all file handles to be non-inheritable. This is necessary to | |
2359 | ensure child processes don't unwittingly inherit handles that might | |
2360 | prevent future file access. */ | |
2361 | ||
2362 | if (mode[0] == 'r') | |
2363 | oflag = O_RDONLY; | |
2364 | else if (mode[0] == 'w' || mode[0] == 'a') | |
2365 | oflag = O_WRONLY | O_CREAT | O_TRUNC; | |
95ed0025 | 2366 | else |
480b0c5b GV |
2367 | return NULL; |
2368 | ||
2369 | /* Only do simplistic option parsing. */ | |
2370 | while (*++mode) | |
2371 | if (mode[0] == '+') | |
2372 | { | |
2373 | oflag &= ~(O_RDONLY | O_WRONLY); | |
2374 | oflag |= O_RDWR; | |
2375 | } | |
2376 | else if (mode[0] == 'b') | |
2377 | { | |
2378 | oflag &= ~O_TEXT; | |
2379 | oflag |= O_BINARY; | |
2380 | } | |
2381 | else if (mode[0] == 't') | |
2382 | { | |
2383 | oflag &= ~O_BINARY; | |
2384 | oflag |= O_TEXT; | |
2385 | } | |
2386 | else break; | |
2387 | ||
fbd6baed | 2388 | fd = _open (map_w32_filename (path, NULL), oflag | _O_NOINHERIT, 0644); |
480b0c5b GV |
2389 | if (fd < 0) |
2390 | return NULL; | |
2391 | ||
76b3903d | 2392 | return _fdopen (fd, mode_save); |
95ed0025 | 2393 | } |
480b0c5b | 2394 | |
76b3903d | 2395 | /* This only works on NTFS volumes, but is useful to have. */ |
480b0c5b | 2396 | int |
76b3903d | 2397 | sys_link (const char * old, const char * new) |
480b0c5b | 2398 | { |
76b3903d GV |
2399 | HANDLE fileh; |
2400 | int result = -1; | |
2401 | char oldname[MAX_PATH], newname[MAX_PATH]; | |
2402 | ||
2403 | if (old == NULL || new == NULL) | |
2404 | { | |
2405 | errno = ENOENT; | |
2406 | return -1; | |
2407 | } | |
2408 | ||
2409 | strcpy (oldname, map_w32_filename (old, NULL)); | |
2410 | strcpy (newname, map_w32_filename (new, NULL)); | |
2411 | ||
2412 | fileh = CreateFile (oldname, 0, 0, NULL, OPEN_EXISTING, | |
2413 | FILE_FLAG_BACKUP_SEMANTICS, NULL); | |
2414 | if (fileh != INVALID_HANDLE_VALUE) | |
2415 | { | |
2416 | int wlen; | |
2417 | ||
2418 | /* Confusingly, the "alternate" stream name field does not apply | |
2419 | when restoring a hard link, and instead contains the actual | |
2420 | stream data for the link (ie. the name of the link to create). | |
2421 | The WIN32_STREAM_ID structure before the cStreamName field is | |
2422 | the stream header, which is then immediately followed by the | |
2423 | stream data. */ | |
2424 | ||
2425 | struct { | |
2426 | WIN32_STREAM_ID wid; | |
2427 | WCHAR wbuffer[MAX_PATH]; /* extra space for link name */ | |
2428 | } data; | |
2429 | ||
2430 | wlen = MultiByteToWideChar (CP_ACP, MB_PRECOMPOSED, newname, -1, | |
2431 | data.wid.cStreamName, MAX_PATH); | |
2432 | if (wlen > 0) | |
2433 | { | |
2434 | LPVOID context = NULL; | |
2435 | DWORD wbytes = 0; | |
2436 | ||
2437 | data.wid.dwStreamId = BACKUP_LINK; | |
2438 | data.wid.dwStreamAttributes = 0; | |
2439 | data.wid.Size.LowPart = wlen * sizeof(WCHAR); | |
2440 | data.wid.Size.HighPart = 0; | |
2441 | data.wid.dwStreamNameSize = 0; | |
2442 | ||
2443 | if (BackupWrite (fileh, (LPBYTE)&data, | |
2444 | offsetof (WIN32_STREAM_ID, cStreamName) | |
2445 | + data.wid.Size.LowPart, | |
2446 | &wbytes, FALSE, FALSE, &context) | |
2447 | && BackupWrite (fileh, NULL, 0, &wbytes, TRUE, FALSE, &context)) | |
2448 | { | |
2449 | /* succeeded */ | |
2450 | result = 0; | |
2451 | } | |
2452 | else | |
2453 | { | |
2454 | /* Should try mapping GetLastError to errno; for now just | |
2455 | indicate a general error (eg. links not supported). */ | |
2456 | errno = EINVAL; // perhaps EMLINK? | |
2457 | } | |
2458 | } | |
2459 | ||
2460 | CloseHandle (fileh); | |
2461 | } | |
2462 | else | |
2463 | errno = ENOENT; | |
2464 | ||
2465 | return result; | |
480b0c5b GV |
2466 | } |
2467 | ||
2468 | int | |
2469 | sys_mkdir (const char * path) | |
2470 | { | |
fbd6baed | 2471 | return _mkdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2472 | } |
2473 | ||
9d1778b1 RS |
2474 | /* Because of long name mapping issues, we need to implement this |
2475 | ourselves. Also, MSVC's _mktemp returns NULL when it can't generate | |
2476 | a unique name, instead of setting the input template to an empty | |
2477 | string. | |
2478 | ||
2479 | Standard algorithm seems to be use pid or tid with a letter on the | |
2480 | front (in place of the 6 X's) and cycle through the letters to find a | |
2481 | unique name. We extend that to allow any reasonable character as the | |
2482 | first of the 6 X's. */ | |
480b0c5b GV |
2483 | char * |
2484 | sys_mktemp (char * template) | |
2485 | { | |
9d1778b1 RS |
2486 | char * p; |
2487 | int i; | |
2488 | unsigned uid = GetCurrentThreadId (); | |
2489 | static char first_char[] = "abcdefghijklmnopqrstuvwyz0123456789!%-_@#"; | |
2490 | ||
2491 | if (template == NULL) | |
2492 | return NULL; | |
2493 | p = template + strlen (template); | |
2494 | i = 5; | |
2495 | /* replace up to the last 5 X's with uid in decimal */ | |
2496 | while (--p >= template && p[0] == 'X' && --i >= 0) | |
2497 | { | |
2498 | p[0] = '0' + uid % 10; | |
2499 | uid /= 10; | |
2500 | } | |
2501 | ||
2502 | if (i < 0 && p[0] == 'X') | |
2503 | { | |
2504 | i = 0; | |
2505 | do | |
2506 | { | |
2507 | int save_errno = errno; | |
2508 | p[0] = first_char[i]; | |
2509 | if (sys_access (template, 0) < 0) | |
2510 | { | |
2511 | errno = save_errno; | |
2512 | return template; | |
2513 | } | |
2514 | } | |
2515 | while (++i < sizeof (first_char)); | |
2516 | } | |
2517 | ||
2518 | /* Template is badly formed or else we can't generate a unique name, | |
2519 | so return empty string */ | |
2520 | template[0] = 0; | |
2521 | return template; | |
480b0c5b GV |
2522 | } |
2523 | ||
2524 | int | |
2525 | sys_open (const char * path, int oflag, int mode) | |
2526 | { | |
302f0b29 GM |
2527 | const char* mpath = map_w32_filename (path, NULL); |
2528 | /* Try to open file without _O_CREAT, to be able to write to hidden | |
2529 | and system files. Force all file handles to be | |
2530 | non-inheritable. */ | |
2531 | int res = _open (mpath, (oflag & ~_O_CREAT) | _O_NOINHERIT, mode); | |
2532 | if (res >= 0) | |
2533 | return res; | |
2534 | return _open (mpath, oflag | _O_NOINHERIT, mode); | |
480b0c5b GV |
2535 | } |
2536 | ||
2537 | int | |
2538 | sys_rename (const char * oldname, const char * newname) | |
2539 | { | |
cfb5e855 | 2540 | BOOL result; |
b3308d2e | 2541 | char temp[MAX_PATH]; |
480b0c5b | 2542 | |
e9e23e23 | 2543 | /* MoveFile on Windows 95 doesn't correctly change the short file name |
5162ffce MB |
2544 | alias in a number of circumstances (it is not easy to predict when |
2545 | just by looking at oldname and newname, unfortunately). In these | |
2546 | cases, renaming through a temporary name avoids the problem. | |
2547 | ||
e9e23e23 | 2548 | A second problem on Windows 95 is that renaming through a temp name when |
5162ffce MB |
2549 | newname is uppercase fails (the final long name ends up in |
2550 | lowercase, although the short alias might be uppercase) UNLESS the | |
2551 | long temp name is not 8.3. | |
2552 | ||
e9e23e23 | 2553 | So, on Windows 95 we always rename through a temp name, and we make sure |
5162ffce | 2554 | the temp name has a long extension to ensure correct renaming. */ |
480b0c5b | 2555 | |
fbd6baed | 2556 | strcpy (temp, map_w32_filename (oldname, NULL)); |
480b0c5b | 2557 | |
76b3903d | 2558 | if (os_subtype == OS_WIN95) |
480b0c5b | 2559 | { |
b3308d2e | 2560 | char * o; |
480b0c5b | 2561 | char * p; |
b3308d2e KH |
2562 | int i = 0; |
2563 | ||
2564 | oldname = map_w32_filename (oldname, NULL); | |
2565 | if (o = strrchr (oldname, '\\')) | |
2566 | o++; | |
2567 | else | |
2568 | o = (char *) oldname; | |
480b0c5b | 2569 | |
480b0c5b GV |
2570 | if (p = strrchr (temp, '\\')) |
2571 | p++; | |
2572 | else | |
2573 | p = temp; | |
b3308d2e KH |
2574 | |
2575 | do | |
2576 | { | |
2577 | /* Force temp name to require a manufactured 8.3 alias - this | |
2578 | seems to make the second rename work properly. */ | |
f313ee82 | 2579 | sprintf (p, "_.%s.%u", o, i); |
b3308d2e | 2580 | i++; |
58f0cb7e | 2581 | result = rename (oldname, temp); |
b3308d2e KH |
2582 | } |
2583 | /* This loop must surely terminate! */ | |
cfb5e855 | 2584 | while (result < 0 && errno == EEXIST); |
58f0cb7e | 2585 | if (result < 0) |
480b0c5b GV |
2586 | return -1; |
2587 | } | |
2588 | ||
fffa137c | 2589 | /* Emulate Unix behavior - newname is deleted if it already exists |
5162ffce | 2590 | (at least if it is a file; don't do this for directories). |
76b3903d | 2591 | |
b3308d2e KH |
2592 | Since we mustn't do this if we are just changing the case of the |
2593 | file name (we would end up deleting the file we are trying to | |
2594 | rename!), we let rename detect if the destination file already | |
2595 | exists - that way we avoid the possible pitfalls of trying to | |
2596 | determine ourselves whether two names really refer to the same | |
2597 | file, which is not always possible in the general case. (Consider | |
2598 | all the permutations of shared or subst'd drives, etc.) */ | |
2599 | ||
2600 | newname = map_w32_filename (newname, NULL); | |
eb9ea53f | 2601 | result = rename (temp, newname); |
b3308d2e KH |
2602 | |
2603 | if (result < 0 | |
cfb5e855 | 2604 | && errno == EEXIST |
b3308d2e KH |
2605 | && _chmod (newname, 0666) == 0 |
2606 | && _unlink (newname) == 0) | |
2607 | result = rename (temp, newname); | |
480b0c5b | 2608 | |
eb9ea53f | 2609 | return result; |
480b0c5b GV |
2610 | } |
2611 | ||
2612 | int | |
2613 | sys_rmdir (const char * path) | |
2614 | { | |
fbd6baed | 2615 | return _rmdir (map_w32_filename (path, NULL)); |
480b0c5b GV |
2616 | } |
2617 | ||
2618 | int | |
2619 | sys_unlink (const char * path) | |
2620 | { | |
16bb7578 GV |
2621 | path = map_w32_filename (path, NULL); |
2622 | ||
2623 | /* On Unix, unlink works without write permission. */ | |
2624 | _chmod (path, 0666); | |
2625 | return _unlink (path); | |
480b0c5b GV |
2626 | } |
2627 | ||
2628 | static FILETIME utc_base_ft; | |
2629 | static long double utc_base; | |
2630 | static int init = 0; | |
2631 | ||
7c80d5ec EZ |
2632 | static long double |
2633 | convert_time_raw (FILETIME ft) | |
2634 | { | |
2635 | return | |
2636 | (long double) ft.dwHighDateTime | |
2637 | * 4096.0L * 1024.0L * 1024.0L + ft.dwLowDateTime; | |
2638 | } | |
2639 | ||
480b0c5b GV |
2640 | static time_t |
2641 | convert_time (FILETIME ft) | |
2642 | { | |
2643 | long double ret; | |
2644 | ||
2645 | if (!init) | |
2646 | { | |
2647 | /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
2648 | SYSTEMTIME st; | |
2649 | ||
2650 | st.wYear = 1970; | |
2651 | st.wMonth = 1; | |
2652 | st.wDay = 1; | |
2653 | st.wHour = 0; | |
2654 | st.wMinute = 0; | |
2655 | st.wSecond = 0; | |
2656 | st.wMilliseconds = 0; | |
2657 | ||
2658 | SystemTimeToFileTime (&st, &utc_base_ft); | |
2659 | utc_base = (long double) utc_base_ft.dwHighDateTime | |
69b72317 | 2660 | * 4096.0L * 1024.0L * 1024.0L + utc_base_ft.dwLowDateTime; |
480b0c5b GV |
2661 | init = 1; |
2662 | } | |
2663 | ||
2664 | if (CompareFileTime (&ft, &utc_base_ft) < 0) | |
2665 | return 0; | |
2666 | ||
7c80d5ec | 2667 | return (time_t) ((convert_time_raw (ft) - utc_base) * 1e-7L); |
480b0c5b GV |
2668 | } |
2669 | ||
7c80d5ec | 2670 | |
480b0c5b GV |
2671 | void |
2672 | convert_from_time_t (time_t time, FILETIME * pft) | |
2673 | { | |
2674 | long double tmp; | |
2675 | ||
2676 | if (!init) | |
2677 | { | |
2678 | /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
2679 | SYSTEMTIME st; | |
2680 | ||
2681 | st.wYear = 1970; | |
2682 | st.wMonth = 1; | |
2683 | st.wDay = 1; | |
2684 | st.wHour = 0; | |
2685 | st.wMinute = 0; | |
2686 | st.wSecond = 0; | |
2687 | st.wMilliseconds = 0; | |
2688 | ||
2689 | SystemTimeToFileTime (&st, &utc_base_ft); | |
2690 | utc_base = (long double) utc_base_ft.dwHighDateTime | |
2691 | * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime; | |
2692 | init = 1; | |
2693 | } | |
2694 | ||
2695 | /* time in 100ns units since 1-Jan-1601 */ | |
2696 | tmp = (long double) time * 1e7 + utc_base; | |
2697 | pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024)); | |
16bb7578 | 2698 | pft->dwLowDateTime = (DWORD) (tmp - (4096.0 * 1024 * 1024) * pft->dwHighDateTime); |
480b0c5b | 2699 | } |
480b0c5b | 2700 | |
76b3903d GV |
2701 | #if 0 |
2702 | /* No reason to keep this; faking inode values either by hashing or even | |
2703 | using the file index from GetInformationByHandle, is not perfect and | |
2704 | so by default Emacs doesn't use the inode values on Windows. | |
2705 | Instead, we now determine file-truename correctly (except for | |
2706 | possible drive aliasing etc). */ | |
2707 | ||
2708 | /* Modified version of "PJW" algorithm (see the "Dragon" compiler book). */ | |
480b0c5b | 2709 | static unsigned |
76b3903d | 2710 | hashval (const unsigned char * str) |
480b0c5b GV |
2711 | { |
2712 | unsigned h = 0; | |
480b0c5b GV |
2713 | while (*str) |
2714 | { | |
2715 | h = (h << 4) + *str++; | |
76b3903d | 2716 | h ^= (h >> 28); |
480b0c5b GV |
2717 | } |
2718 | return h; | |
2719 | } | |
2720 | ||
2721 | /* Return the hash value of the canonical pathname, excluding the | |
2722 | drive/UNC header, to get a hopefully unique inode number. */ | |
76b3903d | 2723 | static DWORD |
480b0c5b GV |
2724 | generate_inode_val (const char * name) |
2725 | { | |
2726 | char fullname[ MAX_PATH ]; | |
2727 | char * p; | |
2728 | unsigned hash; | |
2729 | ||
76b3903d GV |
2730 | /* Get the truly canonical filename, if it exists. (Note: this |
2731 | doesn't resolve aliasing due to subst commands, or recognise hard | |
2732 | links. */ | |
2733 | if (!w32_get_long_filename ((char *)name, fullname, MAX_PATH)) | |
2734 | abort (); | |
2735 | ||
2736 | parse_root (fullname, &p); | |
fbd6baed | 2737 | /* Normal W32 filesystems are still case insensitive. */ |
480b0c5b | 2738 | _strlwr (p); |
76b3903d | 2739 | return hashval (p); |
480b0c5b GV |
2740 | } |
2741 | ||
76b3903d GV |
2742 | #endif |
2743 | ||
8aaaec6b EZ |
2744 | static PSECURITY_DESCRIPTOR |
2745 | get_file_security_desc (const char *fname) | |
2746 | { | |
2747 | PSECURITY_DESCRIPTOR psd = NULL; | |
2748 | DWORD sd_len, err; | |
2749 | SECURITY_INFORMATION si = OWNER_SECURITY_INFORMATION | |
2750 | | GROUP_SECURITY_INFORMATION /* | DACL_SECURITY_INFORMATION */ ; | |
2751 | ||
2752 | if (!get_file_security (fname, si, psd, 0, &sd_len)) | |
2753 | { | |
2754 | err = GetLastError (); | |
2755 | if (err != ERROR_INSUFFICIENT_BUFFER) | |
2756 | return NULL; | |
2757 | } | |
2758 | ||
2759 | psd = xmalloc (sd_len); | |
2760 | if (!get_file_security (fname, si, psd, sd_len, &sd_len)) | |
2761 | { | |
2762 | xfree (psd); | |
2763 | return NULL; | |
2764 | } | |
2765 | ||
2766 | return psd; | |
2767 | } | |
2768 | ||
2769 | static DWORD | |
2770 | get_rid (PSID sid) | |
2771 | { | |
2772 | unsigned n_subauthorities; | |
2773 | ||
2774 | /* Use the last sub-authority value of the RID, the relative | |
2775 | portion of the SID, as user/group ID. */ | |
2776 | n_subauthorities = *get_sid_sub_authority_count (sid); | |
2777 | if (n_subauthorities < 1) | |
2778 | return 0; /* the "World" RID */ | |
2779 | return *get_sid_sub_authority (sid, n_subauthorities - 1); | |
2780 | } | |
2781 | ||
2782 | #define UID 1 | |
2783 | #define GID 2 | |
2784 | ||
2785 | static int | |
2786 | get_name_and_id (PSECURITY_DESCRIPTOR psd, const char *fname, | |
2787 | int *id, char *nm, int what) | |
2788 | { | |
2789 | PSID sid = NULL; | |
2790 | char machine[MAX_COMPUTERNAME_LENGTH+1]; | |
2791 | BOOL dflt; | |
2792 | SID_NAME_USE ignore; | |
2793 | char name[UNLEN+1]; | |
2794 | DWORD name_len = sizeof (name); | |
2795 | char domain[1024]; | |
2796 | DWORD domain_len = sizeof(domain); | |
2797 | char *mp = NULL; | |
2798 | int use_dflt = 0; | |
2799 | int result; | |
2800 | ||
2801 | if (what == UID) | |
2802 | result = get_security_descriptor_owner (psd, &sid, &dflt); | |
2803 | else if (what == GID) | |
2804 | result = get_security_descriptor_group (psd, &sid, &dflt); | |
2805 | else | |
2806 | result = 0; | |
2807 | ||
2808 | if (!result || !is_valid_sid (sid)) | |
2809 | use_dflt = 1; | |
2810 | else | |
2811 | { | |
2812 | /* If FNAME is a UNC, we need to lookup account on the | |
2813 | specified machine. */ | |
2814 | if (IS_DIRECTORY_SEP (fname[0]) && IS_DIRECTORY_SEP (fname[1]) | |
2815 | && fname[2] != '\0') | |
2816 | { | |
2817 | const char *s; | |
2818 | char *p; | |
2819 | ||
2820 | for (s = fname + 2, p = machine; | |
2821 | *s && !IS_DIRECTORY_SEP (*s); s++, p++) | |
2822 | *p = *s; | |
2823 | *p = '\0'; | |
2824 | mp = machine; | |
2825 | } | |
2826 | ||
2827 | if (!lookup_account_sid (mp, sid, name, &name_len, | |
2828 | domain, &domain_len, &ignore) | |
2829 | || name_len > UNLEN+1) | |
2830 | use_dflt = 1; | |
2831 | else | |
2832 | { | |
2833 | *id = get_rid (sid); | |
2834 | strcpy (nm, name); | |
2835 | } | |
2836 | } | |
2837 | return use_dflt; | |
2838 | } | |
2839 | ||
2840 | static void | |
2841 | get_file_owner_and_group ( | |
2842 | PSECURITY_DESCRIPTOR psd, | |
2843 | const char *fname, | |
2844 | struct stat *st) | |
2845 | { | |
2846 | int dflt_usr = 0, dflt_grp = 0; | |
2847 | ||
2848 | if (!psd) | |
2849 | { | |
2850 | dflt_usr = 1; | |
2851 | dflt_grp = 1; | |
2852 | } | |
2853 | else | |
2854 | { | |
2855 | if (get_name_and_id (psd, fname, &st->st_uid, st->st_uname, UID)) | |
2856 | dflt_usr = 1; | |
2857 | if (get_name_and_id (psd, fname, &st->st_gid, st->st_gname, GID)) | |
2858 | dflt_grp = 1; | |
2859 | } | |
2860 | /* Consider files to belong to current user/group, if we cannot get | |
2861 | more accurate information. */ | |
2862 | if (dflt_usr) | |
2863 | { | |
2864 | st->st_uid = dflt_passwd.pw_uid; | |
2865 | strcpy (st->st_uname, dflt_passwd.pw_name); | |
2866 | } | |
2867 | if (dflt_grp) | |
2868 | { | |
2869 | st->st_gid = dflt_passwd.pw_gid; | |
2870 | strcpy (st->st_gname, dflt_group.gr_name); | |
2871 | } | |
2872 | } | |
2873 | ||
480b0c5b GV |
2874 | /* MSVC stat function can't cope with UNC names and has other bugs, so |
2875 | replace it with our own. This also allows us to calculate consistent | |
2876 | inode values without hacks in the main Emacs code. */ | |
2877 | int | |
2878 | stat (const char * path, struct stat * buf) | |
2879 | { | |
eb9ea53f | 2880 | char *name, *r; |
480b0c5b GV |
2881 | WIN32_FIND_DATA wfd; |
2882 | HANDLE fh; | |
e3b88685 | 2883 | unsigned __int64 fake_inode; |
480b0c5b GV |
2884 | int permission; |
2885 | int len; | |
2886 | int rootdir = FALSE; | |
8aaaec6b | 2887 | PSECURITY_DESCRIPTOR psd = NULL; |
480b0c5b GV |
2888 | |
2889 | if (path == NULL || buf == NULL) | |
2890 | { | |
2891 | errno = EFAULT; | |
2892 | return -1; | |
2893 | } | |
2894 | ||
fbd6baed | 2895 | name = (char *) map_w32_filename (path, &path); |
22189f79 EZ |
2896 | /* Must be valid filename, no wild cards or other invalid |
2897 | characters. We use _mbspbrk to support multibyte strings that | |
2898 | might look to strpbrk as if they included literal *, ?, and other | |
2899 | characters mentioned below that are disallowed by Windows | |
2900 | filesystems. */ | |
2901 | if (_mbspbrk (name, "*?|<>\"")) | |
480b0c5b GV |
2902 | { |
2903 | errno = ENOENT; | |
2904 | return -1; | |
2905 | } | |
2906 | ||
eb9ea53f GV |
2907 | /* If name is "c:/.." or "/.." then stat "c:/" or "/". */ |
2908 | r = IS_DEVICE_SEP (name[1]) ? &name[2] : name; | |
2909 | if (IS_DIRECTORY_SEP (r[0]) && r[1] == '.' && r[2] == '.' && r[3] == '\0') | |
2910 | { | |
2911 | r[1] = r[2] = '\0'; | |
2912 | } | |
2913 | ||
480b0c5b GV |
2914 | /* Remove trailing directory separator, unless name is the root |
2915 | directory of a drive or UNC volume in which case ensure there | |
2916 | is a trailing separator. */ | |
2917 | len = strlen (name); | |
2918 | rootdir = (path >= name + len - 1 | |
2919 | && (IS_DIRECTORY_SEP (*path) || *path == 0)); | |
2920 | name = strcpy (alloca (len + 2), name); | |
2921 | ||
9d3355d1 GV |
2922 | if (is_unc_volume (name)) |
2923 | { | |
2924 | DWORD attrs = unc_volume_file_attributes (name); | |
2925 | ||
2926 | if (attrs == -1) | |
2927 | return -1; | |
2928 | ||
2929 | memset (&wfd, 0, sizeof (wfd)); | |
2930 | wfd.dwFileAttributes = attrs; | |
2931 | wfd.ftCreationTime = utc_base_ft; | |
2932 | wfd.ftLastAccessTime = utc_base_ft; | |
2933 | wfd.ftLastWriteTime = utc_base_ft; | |
2934 | strcpy (wfd.cFileName, name); | |
2935 | } | |
2936 | else if (rootdir) | |
480b0c5b GV |
2937 | { |
2938 | if (!IS_DIRECTORY_SEP (name[len-1])) | |
2939 | strcat (name, "\\"); | |
2940 | if (GetDriveType (name) < 2) | |
2941 | { | |
2942 | errno = ENOENT; | |
2943 | return -1; | |
2944 | } | |
2945 | memset (&wfd, 0, sizeof (wfd)); | |
2946 | wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY; | |
2947 | wfd.ftCreationTime = utc_base_ft; | |
2948 | wfd.ftLastAccessTime = utc_base_ft; | |
2949 | wfd.ftLastWriteTime = utc_base_ft; | |
2950 | strcpy (wfd.cFileName, name); | |
2951 | } | |
2952 | else | |
2953 | { | |
2954 | if (IS_DIRECTORY_SEP (name[len-1])) | |
2955 | name[len - 1] = 0; | |
76b3903d GV |
2956 | |
2957 | /* (This is hacky, but helps when doing file completions on | |
2958 | network drives.) Optimize by using information available from | |
2959 | active readdir if possible. */ | |
b19cc00c GV |
2960 | len = strlen (dir_pathname); |
2961 | if (IS_DIRECTORY_SEP (dir_pathname[len-1])) | |
2962 | len--; | |
76b3903d | 2963 | if (dir_find_handle != INVALID_HANDLE_VALUE |
b19cc00c | 2964 | && strnicmp (name, dir_pathname, len) == 0 |
76b3903d | 2965 | && IS_DIRECTORY_SEP (name[len]) |
05131107 | 2966 | && xstrcasecmp (name + len + 1, dir_static.d_name) == 0) |
480b0c5b | 2967 | { |
76b3903d GV |
2968 | /* This was the last entry returned by readdir. */ |
2969 | wfd = dir_find_data; | |
2970 | } | |
2971 | else | |
2972 | { | |
513feaa5 | 2973 | logon_network_drive (name); |
302d7d54 | 2974 | |
76b3903d GV |
2975 | fh = FindFirstFile (name, &wfd); |
2976 | if (fh == INVALID_HANDLE_VALUE) | |
2977 | { | |
2978 | errno = ENOENT; | |
2979 | return -1; | |
2980 | } | |
2981 | FindClose (fh); | |
480b0c5b | 2982 | } |
480b0c5b GV |
2983 | } |
2984 | ||
8aaaec6b EZ |
2985 | if (!(NILP (Vw32_get_true_file_attributes) |
2986 | || (EQ (Vw32_get_true_file_attributes, Qlocal) && | |
2a85f0c2 | 2987 | GetDriveType (name) != DRIVE_FIXED)) |
93e0f0da JR |
2988 | /* No access rights required to get info. */ |
2989 | && (fh = CreateFile (name, 0, 0, NULL, OPEN_EXISTING, | |
2990 | FILE_FLAG_BACKUP_SEMANTICS, NULL)) | |
2991 | != INVALID_HANDLE_VALUE) | |
480b0c5b | 2992 | { |
480b0c5b | 2993 | /* This is more accurate in terms of gettting the correct number |
aa5ee2a3 | 2994 | of links, but is quite slow (it is noticeable when Emacs is |
480b0c5b GV |
2995 | making a list of file name completions). */ |
2996 | BY_HANDLE_FILE_INFORMATION info; | |
2997 | ||
480b0c5b GV |
2998 | if (GetFileInformationByHandle (fh, &info)) |
2999 | { | |
480b0c5b | 3000 | buf->st_nlink = info.nNumberOfLinks; |
76b3903d GV |
3001 | /* Might as well use file index to fake inode values, but this |
3002 | is not guaranteed to be unique unless we keep a handle open | |
3003 | all the time (even then there are situations where it is | |
3004 | not unique). Reputedly, there are at most 48 bits of info | |
3005 | (on NTFS, presumably less on FAT). */ | |
e3b88685 EZ |
3006 | fake_inode = info.nFileIndexHigh; |
3007 | fake_inode <<= 32; | |
3008 | fake_inode += info.nFileIndexLow; | |
480b0c5b GV |
3009 | } |
3010 | else | |
3011 | { | |
01f31dfb AI |
3012 | buf->st_nlink = 1; |
3013 | fake_inode = 0; | |
3014 | } | |
3015 | ||
93e0f0da | 3016 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
01f31dfb | 3017 | { |
e3b88685 | 3018 | buf->st_mode = S_IFDIR; |
93e0f0da JR |
3019 | } |
3020 | else | |
3021 | { | |
3022 | switch (GetFileType (fh)) | |
3023 | { | |
3024 | case FILE_TYPE_DISK: | |
e3b88685 | 3025 | buf->st_mode = S_IFREG; |
93e0f0da JR |
3026 | break; |
3027 | case FILE_TYPE_PIPE: | |
e3b88685 | 3028 | buf->st_mode = S_IFIFO; |
93e0f0da JR |
3029 | break; |
3030 | case FILE_TYPE_CHAR: | |
3031 | case FILE_TYPE_UNKNOWN: | |
3032 | default: | |
e3b88685 | 3033 | buf->st_mode = S_IFCHR; |
93e0f0da | 3034 | } |
480b0c5b | 3035 | } |
01f31dfb | 3036 | CloseHandle (fh); |
8aaaec6b EZ |
3037 | psd = get_file_security_desc (name); |
3038 | get_file_owner_and_group (psd, name, buf); | |
76b3903d GV |
3039 | } |
3040 | else | |
3041 | { | |
3042 | /* Don't bother to make this information more accurate. */ | |
93e0f0da | 3043 | buf->st_mode = (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? |
e3b88685 | 3044 | S_IFDIR : S_IFREG; |
480b0c5b | 3045 | buf->st_nlink = 1; |
76b3903d | 3046 | fake_inode = 0; |
8aaaec6b EZ |
3047 | |
3048 | get_file_owner_and_group (NULL, name, buf); | |
76b3903d | 3049 | } |
70fdbb46 | 3050 | xfree (psd); |
76b3903d GV |
3051 | |
3052 | #if 0 | |
3053 | /* Not sure if there is any point in this. */ | |
3054 | if (!NILP (Vw32_generate_fake_inodes)) | |
3055 | fake_inode = generate_inode_val (name); | |
3056 | else if (fake_inode == 0) | |
3057 | { | |
3058 | /* For want of something better, try to make everything unique. */ | |
3059 | static DWORD gen_num = 0; | |
3060 | fake_inode = ++gen_num; | |
480b0c5b | 3061 | } |
76b3903d GV |
3062 | #endif |
3063 | ||
3064 | /* MSVC defines _ino_t to be short; other libc's might not. */ | |
3065 | if (sizeof (buf->st_ino) == 2) | |
3066 | buf->st_ino = fake_inode ^ (fake_inode >> 16); | |
3067 | else | |
3068 | buf->st_ino = fake_inode; | |
480b0c5b | 3069 | |
fbd6baed | 3070 | /* volume_info is set indirectly by map_w32_filename */ |
480b0c5b GV |
3071 | buf->st_dev = volume_info.serialnum; |
3072 | buf->st_rdev = volume_info.serialnum; | |
3073 | ||
480b0c5b | 3074 | |
8aaaec6b EZ |
3075 | buf->st_size = wfd.nFileSizeHigh; |
3076 | buf->st_size <<= 32; | |
3077 | buf->st_size += wfd.nFileSizeLow; | |
480b0c5b GV |
3078 | |
3079 | /* Convert timestamps to Unix format. */ | |
3080 | buf->st_mtime = convert_time (wfd.ftLastWriteTime); | |
3081 | buf->st_atime = convert_time (wfd.ftLastAccessTime); | |
3082 | if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; | |
3083 | buf->st_ctime = convert_time (wfd.ftCreationTime); | |
3084 | if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; | |
3085 | ||
3086 | /* determine rwx permissions */ | |
3087 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
e3b88685 | 3088 | permission = S_IREAD; |
480b0c5b | 3089 | else |
e3b88685 | 3090 | permission = S_IREAD | S_IWRITE; |
177c0ea7 | 3091 | |
480b0c5b | 3092 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
e3b88685 | 3093 | permission |= S_IEXEC; |
b3308d2e | 3094 | else if (is_exec (name)) |
e3b88685 | 3095 | permission |= S_IEXEC; |
480b0c5b GV |
3096 | |
3097 | buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
3098 | ||
3099 | return 0; | |
3100 | } | |
3101 | ||
16bb7578 GV |
3102 | /* Provide fstat and utime as well as stat for consistent handling of |
3103 | file timestamps. */ | |
3104 | int | |
3105 | fstat (int desc, struct stat * buf) | |
3106 | { | |
3107 | HANDLE fh = (HANDLE) _get_osfhandle (desc); | |
3108 | BY_HANDLE_FILE_INFORMATION info; | |
e3b88685 | 3109 | unsigned __int64 fake_inode; |
16bb7578 GV |
3110 | int permission; |
3111 | ||
3112 | switch (GetFileType (fh) & ~FILE_TYPE_REMOTE) | |
3113 | { | |
3114 | case FILE_TYPE_DISK: | |
e3b88685 | 3115 | buf->st_mode = S_IFREG; |
16bb7578 GV |
3116 | if (!GetFileInformationByHandle (fh, &info)) |
3117 | { | |
3118 | errno = EACCES; | |
3119 | return -1; | |
3120 | } | |
3121 | break; | |
3122 | case FILE_TYPE_PIPE: | |
e3b88685 | 3123 | buf->st_mode = S_IFIFO; |
16bb7578 GV |
3124 | goto non_disk; |
3125 | case FILE_TYPE_CHAR: | |
3126 | case FILE_TYPE_UNKNOWN: | |
3127 | default: | |
e3b88685 | 3128 | buf->st_mode = S_IFCHR; |
16bb7578 GV |
3129 | non_disk: |
3130 | memset (&info, 0, sizeof (info)); | |
3131 | info.dwFileAttributes = 0; | |
3132 | info.ftCreationTime = utc_base_ft; | |
3133 | info.ftLastAccessTime = utc_base_ft; | |
3134 | info.ftLastWriteTime = utc_base_ft; | |
3135 | } | |
3136 | ||
3137 | if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
e3b88685 | 3138 | buf->st_mode = S_IFDIR; |
93e0f0da JR |
3139 | |
3140 | buf->st_nlink = info.nNumberOfLinks; | |
3141 | /* Might as well use file index to fake inode values, but this | |
3142 | is not guaranteed to be unique unless we keep a handle open | |
3143 | all the time (even then there are situations where it is | |
3144 | not unique). Reputedly, there are at most 48 bits of info | |
3145 | (on NTFS, presumably less on FAT). */ | |
e3b88685 EZ |
3146 | fake_inode = info.nFileIndexHigh; |
3147 | fake_inode <<= 32; | |
3148 | fake_inode += info.nFileIndexLow; | |
16bb7578 GV |
3149 | |
3150 | /* MSVC defines _ino_t to be short; other libc's might not. */ | |
3151 | if (sizeof (buf->st_ino) == 2) | |
3152 | buf->st_ino = fake_inode ^ (fake_inode >> 16); | |
3153 | else | |
3154 | buf->st_ino = fake_inode; | |
3155 | ||
8aaaec6b EZ |
3156 | /* Consider files to belong to current user. |
3157 | FIXME: this should use GetSecurityInfo API, but it is only | |
3158 | available for _WIN32_WINNT >= 0x501. */ | |
07f7980a EZ |
3159 | buf->st_uid = dflt_passwd.pw_uid; |
3160 | buf->st_gid = dflt_passwd.pw_gid; | |
8aaaec6b EZ |
3161 | strcpy (buf->st_uname, dflt_passwd.pw_name); |
3162 | strcpy (buf->st_gname, dflt_group.gr_name); | |
16bb7578 GV |
3163 | |
3164 | buf->st_dev = info.dwVolumeSerialNumber; | |
3165 | buf->st_rdev = info.dwVolumeSerialNumber; | |
3166 | ||
8aaaec6b EZ |
3167 | buf->st_size = info.nFileSizeHigh; |
3168 | buf->st_size <<= 32; | |
3169 | buf->st_size += info.nFileSizeLow; | |
16bb7578 GV |
3170 | |
3171 | /* Convert timestamps to Unix format. */ | |
3172 | buf->st_mtime = convert_time (info.ftLastWriteTime); | |
3173 | buf->st_atime = convert_time (info.ftLastAccessTime); | |
3174 | if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; | |
3175 | buf->st_ctime = convert_time (info.ftCreationTime); | |
3176 | if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; | |
3177 | ||
3178 | /* determine rwx permissions */ | |
3179 | if (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
e3b88685 | 3180 | permission = S_IREAD; |
16bb7578 | 3181 | else |
e3b88685 | 3182 | permission = S_IREAD | S_IWRITE; |
177c0ea7 | 3183 | |
16bb7578 | 3184 | if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
e3b88685 | 3185 | permission |= S_IEXEC; |
16bb7578 GV |
3186 | else |
3187 | { | |
3188 | #if 0 /* no way of knowing the filename */ | |
3189 | char * p = strrchr (name, '.'); | |
3190 | if (p != NULL && | |
05131107 JR |
3191 | (xstrcasecmp (p, ".exe") == 0 || |
3192 | xstrcasecmp (p, ".com") == 0 || | |
3193 | xstrcasecmp (p, ".bat") == 0 || | |
3194 | xstrcasecmp (p, ".cmd") == 0)) | |
e3b88685 | 3195 | permission |= S_IEXEC; |
16bb7578 GV |
3196 | #endif |
3197 | } | |
3198 | ||
3199 | buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
3200 | ||
3201 | return 0; | |
3202 | } | |
3203 | ||
3204 | int | |
3205 | utime (const char *name, struct utimbuf *times) | |
3206 | { | |
3207 | struct utimbuf deftime; | |
3208 | HANDLE fh; | |
3209 | FILETIME mtime; | |
3210 | FILETIME atime; | |
3211 | ||
3212 | if (times == NULL) | |
3213 | { | |
3214 | deftime.modtime = deftime.actime = time (NULL); | |
3215 | times = &deftime; | |
3216 | } | |
3217 | ||
3218 | /* Need write access to set times. */ | |
3219 | fh = CreateFile (name, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, | |
3220 | 0, OPEN_EXISTING, 0, NULL); | |
3221 | if (fh) | |
3222 | { | |
3223 | convert_from_time_t (times->actime, &atime); | |
3224 | convert_from_time_t (times->modtime, &mtime); | |
3225 | if (!SetFileTime (fh, NULL, &atime, &mtime)) | |
3226 | { | |
3227 | CloseHandle (fh); | |
3228 | errno = EACCES; | |
3229 | return -1; | |
3230 | } | |
3231 | CloseHandle (fh); | |
3232 | } | |
3233 | else | |
3234 | { | |
3235 | errno = EINVAL; | |
3236 | return -1; | |
3237 | } | |
3238 | return 0; | |
3239 | } | |
3240 | ||
7c80d5ec EZ |
3241 | \f |
3242 | /* Support for browsing other processes and their attributes. See | |
3243 | process.c for the Lisp bindings. */ | |
3244 | ||
3245 | /* Helper wrapper functions. */ | |
3246 | ||
3247 | HANDLE WINAPI create_toolhelp32_snapshot( | |
3248 | DWORD Flags, | |
3249 | DWORD Ignored) | |
3250 | { | |
3251 | static CreateToolhelp32Snapshot_Proc s_pfn_Create_Toolhelp32_Snapshot = NULL; | |
3252 | ||
3253 | if (g_b_init_create_toolhelp32_snapshot == 0) | |
3254 | { | |
3255 | g_b_init_create_toolhelp32_snapshot = 1; | |
3256 | s_pfn_Create_Toolhelp32_Snapshot = (CreateToolhelp32Snapshot_Proc) | |
3257 | GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
3258 | "CreateToolhelp32Snapshot"); | |
3259 | } | |
3260 | if (s_pfn_Create_Toolhelp32_Snapshot == NULL) | |
3261 | { | |
3262 | return INVALID_HANDLE_VALUE; | |
3263 | } | |
3264 | return (s_pfn_Create_Toolhelp32_Snapshot (Flags, Ignored)); | |
3265 | } | |
3266 | ||
3267 | BOOL WINAPI process32_first( | |
3268 | HANDLE hSnapshot, | |
3269 | LPPROCESSENTRY32 lppe) | |
3270 | { | |
3271 | static Process32First_Proc s_pfn_Process32_First = NULL; | |
3272 | ||
3273 | if (g_b_init_process32_first == 0) | |
3274 | { | |
3275 | g_b_init_process32_first = 1; | |
3276 | s_pfn_Process32_First = (Process32First_Proc) | |
3277 | GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
3278 | "Process32First"); | |
3279 | } | |
3280 | if (s_pfn_Process32_First == NULL) | |
3281 | { | |
3282 | return FALSE; | |
3283 | } | |
3284 | return (s_pfn_Process32_First (hSnapshot, lppe)); | |
3285 | } | |
3286 | ||
3287 | BOOL WINAPI process32_next( | |
3288 | HANDLE hSnapshot, | |
3289 | LPPROCESSENTRY32 lppe) | |
3290 | { | |
3291 | static Process32Next_Proc s_pfn_Process32_Next = NULL; | |
3292 | ||
3293 | if (g_b_init_process32_next == 0) | |
3294 | { | |
3295 | g_b_init_process32_next = 1; | |
3296 | s_pfn_Process32_Next = (Process32Next_Proc) | |
3297 | GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
3298 | "Process32Next"); | |
3299 | } | |
3300 | if (s_pfn_Process32_Next == NULL) | |
3301 | { | |
3302 | return FALSE; | |
3303 | } | |
3304 | return (s_pfn_Process32_Next (hSnapshot, lppe)); | |
3305 | } | |
3306 | ||
3307 | BOOL WINAPI open_thread_token ( | |
3308 | HANDLE ThreadHandle, | |
3309 | DWORD DesiredAccess, | |
3310 | BOOL OpenAsSelf, | |
3311 | PHANDLE TokenHandle) | |
3312 | { | |
3313 | static OpenThreadToken_Proc s_pfn_Open_Thread_Token = NULL; | |
3314 | HMODULE hm_advapi32 = NULL; | |
3315 | if (is_windows_9x () == TRUE) | |
3316 | { | |
3317 | SetLastError (ERROR_NOT_SUPPORTED); | |
3318 | return FALSE; | |
3319 | } | |
3320 | if (g_b_init_open_thread_token == 0) | |
3321 | { | |
3322 | g_b_init_open_thread_token = 1; | |
3323 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
3324 | s_pfn_Open_Thread_Token = | |
3325 | (OpenThreadToken_Proc) GetProcAddress (hm_advapi32, "OpenThreadToken"); | |
3326 | } | |
3327 | if (s_pfn_Open_Thread_Token == NULL) | |
3328 | { | |
3329 | SetLastError (ERROR_NOT_SUPPORTED); | |
3330 | return FALSE; | |
3331 | } | |
3332 | return ( | |
3333 | s_pfn_Open_Thread_Token ( | |
3334 | ThreadHandle, | |
3335 | DesiredAccess, | |
3336 | OpenAsSelf, | |
3337 | TokenHandle) | |
3338 | ); | |
3339 | } | |
3340 | ||
3341 | BOOL WINAPI impersonate_self ( | |
3342 | SECURITY_IMPERSONATION_LEVEL ImpersonationLevel) | |
3343 | { | |
3344 | static ImpersonateSelf_Proc s_pfn_Impersonate_Self = NULL; | |
3345 | HMODULE hm_advapi32 = NULL; | |
3346 | if (is_windows_9x () == TRUE) | |
3347 | { | |
3348 | return FALSE; | |
3349 | } | |
3350 | if (g_b_init_impersonate_self == 0) | |
3351 | { | |
3352 | g_b_init_impersonate_self = 1; | |
3353 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
3354 | s_pfn_Impersonate_Self = | |
3355 | (ImpersonateSelf_Proc) GetProcAddress (hm_advapi32, "ImpersonateSelf"); | |
3356 | } | |
3357 | if (s_pfn_Impersonate_Self == NULL) | |
3358 | { | |
3359 | return FALSE; | |
3360 | } | |
3361 | return s_pfn_Impersonate_Self (ImpersonationLevel); | |
3362 | } | |
3363 | ||
3364 | BOOL WINAPI revert_to_self (void) | |
3365 | { | |
3366 | static RevertToSelf_Proc s_pfn_Revert_To_Self = NULL; | |
3367 | HMODULE hm_advapi32 = NULL; | |
3368 | if (is_windows_9x () == TRUE) | |
3369 | { | |
3370 | return FALSE; | |
3371 | } | |
3372 | if (g_b_init_revert_to_self == 0) | |
3373 | { | |
3374 | g_b_init_revert_to_self = 1; | |
3375 | hm_advapi32 = LoadLibrary ("Advapi32.dll"); | |
3376 | s_pfn_Revert_To_Self = | |
3377 | (RevertToSelf_Proc) GetProcAddress (hm_advapi32, "RevertToSelf"); | |
3378 | } | |
3379 | if (s_pfn_Revert_To_Self == NULL) | |
3380 | { | |
3381 | return FALSE; | |
3382 | } | |
3383 | return s_pfn_Revert_To_Self (); | |
3384 | } | |
3385 | ||
3386 | BOOL WINAPI get_process_memory_info ( | |
3387 | HANDLE h_proc, | |
3388 | PPROCESS_MEMORY_COUNTERS mem_counters, | |
3389 | DWORD bufsize) | |
3390 | { | |
3391 | static GetProcessMemoryInfo_Proc s_pfn_Get_Process_Memory_Info = NULL; | |
3392 | HMODULE hm_psapi = NULL; | |
3393 | if (is_windows_9x () == TRUE) | |
3394 | { | |
3395 | return FALSE; | |
3396 | } | |
3397 | if (g_b_init_get_process_memory_info == 0) | |
3398 | { | |
3399 | g_b_init_get_process_memory_info = 1; | |
3400 | hm_psapi = LoadLibrary ("Psapi.dll"); | |
3401 | if (hm_psapi) | |
3402 | s_pfn_Get_Process_Memory_Info = (GetProcessMemoryInfo_Proc) | |
3403 | GetProcAddress (hm_psapi, "GetProcessMemoryInfo"); | |
3404 | } | |
3405 | if (s_pfn_Get_Process_Memory_Info == NULL) | |
3406 | { | |
3407 | return FALSE; | |
3408 | } | |
3409 | return s_pfn_Get_Process_Memory_Info (h_proc, mem_counters, bufsize); | |
3410 | } | |
3411 | ||
3412 | BOOL WINAPI get_process_working_set_size ( | |
3413 | HANDLE h_proc, | |
3414 | DWORD *minrss, | |
3415 | DWORD *maxrss) | |
3416 | { | |
3417 | static GetProcessWorkingSetSize_Proc | |
3418 | s_pfn_Get_Process_Working_Set_Size = NULL; | |
3419 | ||
3420 | if (is_windows_9x () == TRUE) | |
3421 | { | |
3422 | return FALSE; | |
3423 | } | |
3424 | if (g_b_init_get_process_working_set_size == 0) | |
3425 | { | |
3426 | g_b_init_get_process_working_set_size = 1; | |
3427 | s_pfn_Get_Process_Working_Set_Size = (GetProcessWorkingSetSize_Proc) | |
3428 | GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
3429 | "GetProcessWorkingSetSize"); | |
3430 | } | |
3431 | if (s_pfn_Get_Process_Working_Set_Size == NULL) | |
3432 | { | |
3433 | return FALSE; | |
3434 | } | |
3435 | return s_pfn_Get_Process_Working_Set_Size (h_proc, minrss, maxrss); | |
3436 | } | |
3437 | ||
3438 | BOOL WINAPI global_memory_status ( | |
3439 | MEMORYSTATUS *buf) | |
3440 | { | |
3441 | static GlobalMemoryStatus_Proc s_pfn_Global_Memory_Status = NULL; | |
3442 | ||
3443 | if (is_windows_9x () == TRUE) | |
3444 | { | |
3445 | return FALSE; | |
3446 | } | |
3447 | if (g_b_init_global_memory_status == 0) | |
3448 | { | |
3449 | g_b_init_global_memory_status = 1; | |
3450 | s_pfn_Global_Memory_Status = (GlobalMemoryStatus_Proc) | |
3451 | GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
3452 | "GlobalMemoryStatus"); | |
3453 | } | |
3454 | if (s_pfn_Global_Memory_Status == NULL) | |
3455 | { | |
3456 | return FALSE; | |
3457 | } | |
3458 | return s_pfn_Global_Memory_Status (buf); | |
3459 | } | |
3460 | ||
3461 | BOOL WINAPI global_memory_status_ex ( | |
3462 | MEMORYSTATUSEX *buf) | |
3463 | { | |
3464 | static GlobalMemoryStatusEx_Proc s_pfn_Global_Memory_Status_Ex = NULL; | |
3465 | ||
3466 | if (is_windows_9x () == TRUE) | |
3467 | { | |
3468 | return FALSE; | |
3469 | } | |
3470 | if (g_b_init_global_memory_status_ex == 0) | |
3471 | { | |
3472 | g_b_init_global_memory_status_ex = 1; | |
3473 | s_pfn_Global_Memory_Status_Ex = (GlobalMemoryStatusEx_Proc) | |
3474 | GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
3475 | "GlobalMemoryStatusEx"); | |
3476 | } | |
3477 | if (s_pfn_Global_Memory_Status_Ex == NULL) | |
3478 | { | |
3479 | return FALSE; | |
3480 | } | |
3481 | return s_pfn_Global_Memory_Status_Ex (buf); | |
3482 | } | |
3483 | ||
3484 | Lisp_Object | |
3485 | w32_list_system_processes () | |
3486 | { | |
3487 | struct gcpro gcpro1; | |
3488 | Lisp_Object proclist = Qnil; | |
3489 | HANDLE h_snapshot; | |
3490 | ||
3491 | h_snapshot = create_toolhelp32_snapshot (TH32CS_SNAPPROCESS, 0); | |
3492 | ||
3493 | if (h_snapshot != INVALID_HANDLE_VALUE) | |
3494 | { | |
3495 | PROCESSENTRY32 proc_entry; | |
3496 | DWORD proc_id; | |
3497 | BOOL res; | |
3498 | ||
3499 | GCPRO1 (proclist); | |
3500 | ||
3501 | proc_entry.dwSize = sizeof (PROCESSENTRY32); | |
3502 | for (res = process32_first (h_snapshot, &proc_entry); res; | |
3503 | res = process32_next (h_snapshot, &proc_entry)) | |
3504 | { | |
3505 | proc_id = proc_entry.th32ProcessID; | |
3506 | proclist = Fcons (make_fixnum_or_float (proc_id), proclist); | |
3507 | } | |
3508 | ||
3509 | CloseHandle (h_snapshot); | |
3510 | UNGCPRO; | |
3511 | proclist = Fnreverse (proclist); | |
3512 | } | |
3513 | ||
3514 | return proclist; | |
3515 | } | |
3516 | ||
3517 | static int | |
3518 | enable_privilege (LPCTSTR priv_name, BOOL enable_p, TOKEN_PRIVILEGES *old_priv) | |
3519 | { | |
3520 | TOKEN_PRIVILEGES priv; | |
3521 | DWORD priv_size = sizeof (priv); | |
3522 | DWORD opriv_size = sizeof (*old_priv); | |
3523 | HANDLE h_token = NULL; | |
3524 | HANDLE h_thread = GetCurrentThread (); | |
3525 | int ret_val = 0; | |
3526 | BOOL res; | |
3527 | ||
3528 | res = open_thread_token (h_thread, | |
3529 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
3530 | FALSE, &h_token); | |
3531 | if (!res && GetLastError () == ERROR_NO_TOKEN) | |
3532 | { | |
3533 | if (impersonate_self (SecurityImpersonation)) | |
3534 | res = open_thread_token (h_thread, | |
3535 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
3536 | FALSE, &h_token); | |
3537 | } | |
3538 | if (res) | |
3539 | { | |
3540 | priv.PrivilegeCount = 1; | |
3541 | priv.Privileges[0].Attributes = enable_p ? SE_PRIVILEGE_ENABLED : 0; | |
3542 | LookupPrivilegeValue (NULL, priv_name, &priv.Privileges[0].Luid); | |
3543 | if (AdjustTokenPrivileges (h_token, FALSE, &priv, priv_size, | |
3544 | old_priv, &opriv_size) | |
3545 | && GetLastError () != ERROR_NOT_ALL_ASSIGNED) | |
3546 | ret_val = 1; | |
3547 | } | |
3548 | if (h_token) | |
3549 | CloseHandle (h_token); | |
3550 | ||
3551 | return ret_val; | |
3552 | } | |
3553 | ||
3554 | static int | |
3555 | restore_privilege (TOKEN_PRIVILEGES *priv) | |
3556 | { | |
3557 | DWORD priv_size = sizeof (*priv); | |
3558 | HANDLE h_token = NULL; | |
3559 | int ret_val = 0; | |
3560 | ||
3561 | if (open_thread_token (GetCurrentThread (), | |
3562 | TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES, | |
3563 | FALSE, &h_token)) | |
3564 | { | |
3565 | if (AdjustTokenPrivileges (h_token, FALSE, priv, priv_size, NULL, NULL) | |
3566 | && GetLastError () != ERROR_NOT_ALL_ASSIGNED) | |
3567 | ret_val = 1; | |
3568 | } | |
3569 | if (h_token) | |
3570 | CloseHandle (h_token); | |
3571 | ||
3572 | return ret_val; | |
3573 | } | |
3574 | ||
3575 | static Lisp_Object | |
3576 | ltime (time_sec, time_usec) | |
3577 | long time_sec, time_usec; | |
3578 | { | |
3579 | return list3 (make_number ((time_sec >> 16) & 0xffff), | |
3580 | make_number (time_sec & 0xffff), | |
3581 | make_number (time_usec)); | |
3582 | } | |
3583 | ||
3584 | static int | |
3585 | process_times (h_proc, ctime, etime, stime, utime, pcpu) | |
3586 | HANDLE h_proc; | |
3587 | Lisp_Object *ctime, *etime, *stime, *utime; | |
3588 | double *pcpu; | |
3589 | { | |
3590 | FILETIME ft_creation, ft_exit, ft_kernel, ft_user, ft_current; | |
3591 | long ctime_sec, ctime_usec, stime_sec, stime_usec, utime_sec, utime_usec; | |
3592 | long etime_sec, etime_usec; | |
3593 | long double tem1, tem2, tem; | |
3594 | ||
3595 | if (!h_proc | |
3596 | || !get_process_times_fn | |
3597 | || !(*get_process_times_fn)(h_proc, &ft_creation, &ft_exit, | |
3598 | &ft_kernel, &ft_user)) | |
3599 | return 0; | |
3600 | ||
3601 | GetSystemTimeAsFileTime (&ft_current); | |
3602 | ||
3603 | tem1 = convert_time_raw (ft_kernel) * 0.1L; | |
3604 | stime_usec = fmodl (tem1, 1000000.0L); | |
3605 | stime_sec = tem1 * 0.000001L; | |
3606 | *stime = ltime (stime_sec, stime_usec); | |
3607 | tem2 = convert_time_raw (ft_user) * 0.1L; | |
3608 | utime_usec = fmodl (tem2, 1000000.0L); | |
3609 | utime_sec = tem2 * 0.000001L; | |
3610 | *utime = ltime (utime_sec, utime_usec); | |
3af03101 EZ |
3611 | tem = convert_time_raw (ft_creation); |
3612 | /* Process no 4 (System) returns zero creation time. */ | |
3613 | if (tem) | |
3614 | tem = (tem - utc_base) * 0.1; | |
7c80d5ec EZ |
3615 | ctime_usec = fmodl (tem, 1000000.0L); |
3616 | ctime_sec = tem * 0.000001L; | |
3617 | *ctime = ltime (ctime_sec, ctime_usec); | |
3af03101 EZ |
3618 | if (tem) |
3619 | tem = (convert_time_raw (ft_current) - utc_base) * 0.1L - tem; | |
7c80d5ec EZ |
3620 | etime_usec = fmodl (tem, 1000000.0L); |
3621 | etime_sec = tem * 0.000001L; | |
3622 | *etime = ltime (etime_sec, etime_usec); | |
3623 | ||
3af03101 EZ |
3624 | if (tem) |
3625 | { | |
3626 | *pcpu = 100.0 * (tem1 + tem2) / tem; | |
3627 | if (*pcpu > 100) | |
3628 | *pcpu = 100.0; | |
3629 | } | |
3630 | else | |
3631 | *pcpu = 0; | |
3632 | ||
3633 | return 1; | |
7c80d5ec EZ |
3634 | } |
3635 | ||
3636 | Lisp_Object | |
3637 | w32_system_process_attributes (pid) | |
3638 | Lisp_Object pid; | |
3639 | { | |
3640 | struct gcpro gcpro1, gcpro2, gcpro3; | |
3641 | Lisp_Object attrs = Qnil; | |
3642 | Lisp_Object cmd_str, decoded_cmd, tem; | |
3643 | HANDLE h_snapshot, h_proc; | |
3644 | DWORD proc_id; | |
754a2d13 | 3645 | int found_proc = 0; |
7c80d5ec EZ |
3646 | char uname[UNLEN+1], gname[GNLEN+1], domain[1025]; |
3647 | DWORD ulength = sizeof (uname), dlength = sizeof (domain), trash; | |
3648 | DWORD glength = sizeof (gname); | |
3649 | HANDLE token = NULL; | |
3650 | SID_NAME_USE user_type; | |
3651 | unsigned char buf[1024]; | |
3652 | TOKEN_USER user_token; | |
3653 | TOKEN_PRIMARY_GROUP group_token; | |
3654 | int euid; | |
3655 | int egid; | |
3656 | DWORD sess; | |
3657 | PROCESS_MEMORY_COUNTERS mem; | |
3658 | PROCESS_MEMORY_COUNTERS_EX mem_ex; | |
3659 | DWORD minrss, maxrss; | |
3660 | MEMORYSTATUS memst; | |
3661 | MEMORYSTATUSEX memstex; | |
3662 | double totphys = 0.0; | |
3663 | Lisp_Object ctime, stime, utime, etime; | |
3664 | double pcpu; | |
3665 | ||
3666 | CHECK_NUMBER_OR_FLOAT (pid); | |
3667 | proc_id = FLOATP (pid) ? XFLOAT_DATA (pid) : XINT (pid); | |
3668 | ||
3669 | h_snapshot = create_toolhelp32_snapshot (TH32CS_SNAPPROCESS, 0); | |
3670 | ||
3671 | GCPRO3 (attrs, decoded_cmd, tem); | |
3672 | ||
3673 | if (h_snapshot != INVALID_HANDLE_VALUE) | |
3674 | { | |
3675 | PROCESSENTRY32 pe; | |
3676 | BOOL res; | |
3677 | ||
3678 | pe.dwSize = sizeof (PROCESSENTRY32); | |
3679 | for (res = process32_first (h_snapshot, &pe); res; | |
3680 | res = process32_next (h_snapshot, &pe)) | |
3681 | { | |
3682 | if (proc_id == pe.th32ProcessID) | |
3683 | { | |
3684 | if (proc_id == 0) | |
3685 | decoded_cmd = build_string ("Idle"); | |
3686 | else | |
3687 | { | |
3688 | /* Decode the command name from locale-specific | |
3689 | encoding. */ | |
3690 | cmd_str = make_unibyte_string (pe.szExeFile, | |
3691 | strlen (pe.szExeFile)); | |
3692 | decoded_cmd = | |
3693 | code_convert_string_norecord (cmd_str, | |
3694 | Vlocale_coding_system, 0); | |
3695 | } | |
3696 | attrs = Fcons (Fcons (Qcomm, decoded_cmd), attrs); | |
3697 | attrs = Fcons (Fcons (Qppid, | |
3698 | make_fixnum_or_float (pe.th32ParentProcessID)), | |
3699 | attrs); | |
3700 | attrs = Fcons (Fcons (Qpri, make_number (pe.pcPriClassBase)), | |
3701 | attrs); | |
3702 | attrs = Fcons (Fcons (Qthcount, | |
3703 | make_fixnum_or_float (pe.cntThreads)), | |
3704 | attrs); | |
754a2d13 | 3705 | found_proc = 1; |
7c80d5ec EZ |
3706 | break; |
3707 | } | |
3708 | } | |
3709 | ||
3710 | CloseHandle (h_snapshot); | |
3711 | } | |
3712 | ||
754a2d13 EZ |
3713 | if (!found_proc) |
3714 | { | |
3715 | UNGCPRO; | |
3716 | return Qnil; | |
3717 | } | |
3718 | ||
7c80d5ec EZ |
3719 | h_proc = OpenProcess (PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, |
3720 | FALSE, proc_id); | |
3721 | /* If we were denied a handle to the process, try again after | |
3722 | enabling the SeDebugPrivilege in our process. */ | |
3723 | if (!h_proc) | |
3724 | { | |
3725 | TOKEN_PRIVILEGES priv_current; | |
3726 | ||
3727 | if (enable_privilege (SE_DEBUG_NAME, TRUE, &priv_current)) | |
3728 | { | |
3729 | h_proc = OpenProcess (PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
3730 | FALSE, proc_id); | |
3731 | restore_privilege (&priv_current); | |
3732 | revert_to_self (); | |
3733 | } | |
3734 | } | |
3735 | if (h_proc | |
3736 | && open_process_token (h_proc, TOKEN_QUERY, &token) | |
3737 | && get_token_information (token, TokenUser, | |
3738 | (PVOID)buf, sizeof (buf), &trash) | |
3739 | && (memcpy (&user_token, buf, sizeof (user_token)), | |
3740 | lookup_account_sid (NULL, user_token.User.Sid, uname, &ulength, | |
3741 | domain, &dlength, &user_type))) | |
3742 | { | |
3743 | /* Determine a reasonable euid and gid values. */ | |
3744 | if (xstrcasecmp ("administrator", uname) == 0) | |
3745 | { | |
3746 | euid = 500; /* well-known Administrator uid */ | |
3747 | egid = 513; /* well-known None gid */ | |
3748 | } | |
3749 | else | |
3750 | { | |
3751 | /* Use the last sub-authority value of the RID, the relative | |
3752 | portion of the SID, as user/group ID. */ | |
3753 | euid = get_rid (user_token.User.Sid); | |
3754 | ||
3755 | /* Get group id and name. */ | |
3756 | if (get_token_information (token, TokenPrimaryGroup, | |
3757 | (PVOID)buf, sizeof (buf), &trash)) | |
3758 | { | |
3759 | memcpy (&group_token, buf, sizeof (group_token)); | |
3760 | egid = get_rid (group_token.PrimaryGroup); | |
3761 | dlength = sizeof (domain); | |
3762 | lookup_account_sid (NULL, group_token.PrimaryGroup, | |
3763 | gname, &glength, NULL, &dlength, | |
3764 | &user_type); | |
3765 | } | |
3766 | else | |
3767 | egid = euid; | |
3768 | } | |
3769 | } | |
3770 | else if (!is_windows_9x ()) | |
3771 | { | |
3772 | /* We couldn't open the process token, presumably because of | |
3773 | insufficient access rights. Assume this process is run by | |
3774 | the system. */ | |
3775 | strcpy (uname, "SYSTEM"); | |
3776 | strcpy (gname, "None"); | |
3777 | euid = 18; /* SYSTEM */ | |
3778 | egid = 513; /* None */ | |
3779 | glength = strlen (gname); | |
3780 | ulength = strlen (uname); | |
3781 | } | |
3782 | /* If we are running under Windows 9X, where security calls are not | |
3783 | supported, we assume all processes are run by the current | |
3784 | user. */ | |
3785 | else if (GetUserName (uname, &ulength)) | |
3786 | { | |
3787 | if (xstrcasecmp ("administrator", uname) == 0) | |
3788 | euid = 0; | |
3789 | else | |
3790 | euid = 123; | |
3791 | egid = euid; | |
3792 | strcpy (gname, "None"); | |
3793 | glength = strlen (gname); | |
3794 | ulength = strlen (uname); | |
3795 | } | |
3796 | else | |
3797 | { | |
3798 | euid = 123; | |
3799 | egid = 123; | |
3800 | strcpy (uname, "administrator"); | |
3801 | ulength = strlen (uname); | |
3802 | strcpy (gname, "None"); | |
3803 | glength = strlen (gname); | |
3804 | } | |
3805 | if (token) | |
3806 | CloseHandle (token); | |
3807 | ||
3808 | attrs = Fcons (Fcons (Qeuid, make_fixnum_or_float (euid)), attrs); | |
3809 | tem = make_unibyte_string (uname, ulength); | |
3810 | attrs = Fcons (Fcons (Quser, | |
3811 | code_convert_string_norecord (tem, Vlocale_coding_system, 0)), | |
3812 | attrs); | |
3813 | attrs = Fcons (Fcons (Qegid, make_fixnum_or_float (egid)), attrs); | |
3814 | tem = make_unibyte_string (gname, glength); | |
3815 | attrs = Fcons (Fcons (Qgroup, | |
3816 | code_convert_string_norecord (tem, Vlocale_coding_system, 0)), | |
3817 | attrs); | |
3818 | ||
3819 | if (global_memory_status_ex (&memstex)) | |
3820 | totphys = memstex.ullTotalPhys / 1024.0; | |
3821 | else if (global_memory_status (&memst)) | |
3822 | totphys = memst.dwTotalPhys / 1024.0; | |
3823 | ||
3824 | if (h_proc | |
3825 | && get_process_memory_info (h_proc, (PROCESS_MEMORY_COUNTERS *)&mem_ex, | |
3826 | sizeof (mem_ex))) | |
3827 | { | |
3828 | DWORD rss = mem_ex.WorkingSetSize / 1024; | |
3829 | ||
3830 | attrs = Fcons (Fcons (Qmajflt, | |
3831 | make_fixnum_or_float (mem_ex.PageFaultCount)), | |
3832 | attrs); | |
3833 | attrs = Fcons (Fcons (Qvsize, | |
3834 | make_fixnum_or_float (mem_ex.PrivateUsage / 1024)), | |
3835 | attrs); | |
3836 | attrs = Fcons (Fcons (Qrss, make_fixnum_or_float (rss)), attrs); | |
3837 | if (totphys) | |
3838 | attrs = Fcons (Fcons (Qpmem, make_float (100. * rss / totphys)), attrs); | |
3839 | } | |
3840 | else if (h_proc | |
3841 | && get_process_memory_info (h_proc, &mem, sizeof (mem))) | |
3842 | { | |
3843 | DWORD rss = mem_ex.WorkingSetSize / 1024; | |
3844 | ||
3845 | attrs = Fcons (Fcons (Qmajflt, | |
3846 | make_fixnum_or_float (mem.PageFaultCount)), | |
3847 | attrs); | |
3848 | attrs = Fcons (Fcons (Qrss, make_fixnum_or_float (rss)), attrs); | |
3849 | if (totphys) | |
3850 | attrs = Fcons (Fcons (Qpmem, make_float (100. * rss / totphys)), attrs); | |
3851 | } | |
3852 | else if (h_proc | |
3853 | && get_process_working_set_size (h_proc, &minrss, &maxrss)) | |
3854 | { | |
3855 | DWORD rss = maxrss / 1024; | |
3856 | ||
3857 | attrs = Fcons (Fcons (Qrss, make_fixnum_or_float (maxrss / 1024)), attrs); | |
3858 | if (totphys) | |
3859 | attrs = Fcons (Fcons (Qpmem, make_float (100. * rss / totphys)), attrs); | |
3860 | } | |
3861 | ||
3862 | if (process_times (h_proc, &ctime, &etime, &stime, &utime, &pcpu)) | |
3863 | { | |
3864 | attrs = Fcons (Fcons (Qutime, utime), attrs); | |
3865 | attrs = Fcons (Fcons (Qstime, stime), attrs); | |
3866 | attrs = Fcons (Fcons (Qstart, ctime), attrs); | |
3867 | attrs = Fcons (Fcons (Qetime, etime), attrs); | |
3868 | attrs = Fcons (Fcons (Qpcpu, make_float (pcpu)), attrs); | |
3869 | } | |
3870 | ||
3871 | /* FIXME: Retrieve command line by walking the PEB of the process. */ | |
3872 | ||
3873 | if (h_proc) | |
3874 | CloseHandle (h_proc); | |
3875 | UNGCPRO; | |
3876 | return attrs; | |
3877 | } | |
3878 | ||
3879 | \f | |
480b0c5b GV |
3880 | #ifdef HAVE_SOCKETS |
3881 | ||
3882 | /* Wrappers for winsock functions to map between our file descriptors | |
3883 | and winsock's handles; also set h_errno for convenience. | |
3884 | ||
3885 | To allow Emacs to run on systems which don't have winsock support | |
3886 | installed, we dynamically link to winsock on startup if present, and | |
3887 | otherwise provide the minimum necessary functionality | |
3888 | (eg. gethostname). */ | |
3889 | ||
3890 | /* function pointers for relevant socket functions */ | |
3891 | int (PASCAL *pfn_WSAStartup) (WORD wVersionRequired, LPWSADATA lpWSAData); | |
3892 | void (PASCAL *pfn_WSASetLastError) (int iError); | |
3893 | int (PASCAL *pfn_WSAGetLastError) (void); | |
26fb7bc4 | 3894 | int (PASCAL *pfn_WSAEventSelect) (SOCKET s, HANDLE hEventObject, long lNetworkEvents); |
64570b36 KS |
3895 | HANDLE (PASCAL *pfn_WSACreateEvent) (void); |
3896 | int (PASCAL *pfn_WSACloseEvent) (HANDLE hEvent); | |
480b0c5b GV |
3897 | int (PASCAL *pfn_socket) (int af, int type, int protocol); |
3898 | int (PASCAL *pfn_bind) (SOCKET s, const struct sockaddr *addr, int namelen); | |
3899 | int (PASCAL *pfn_connect) (SOCKET s, const struct sockaddr *addr, int namelen); | |
3900 | int (PASCAL *pfn_ioctlsocket) (SOCKET s, long cmd, u_long *argp); | |
3901 | int (PASCAL *pfn_recv) (SOCKET s, char * buf, int len, int flags); | |
3902 | int (PASCAL *pfn_send) (SOCKET s, const char * buf, int len, int flags); | |
3903 | int (PASCAL *pfn_closesocket) (SOCKET s); | |
3904 | int (PASCAL *pfn_shutdown) (SOCKET s, int how); | |
3905 | int (PASCAL *pfn_WSACleanup) (void); | |
3906 | ||
3907 | u_short (PASCAL *pfn_htons) (u_short hostshort); | |
3908 | u_short (PASCAL *pfn_ntohs) (u_short netshort); | |
3909 | unsigned long (PASCAL *pfn_inet_addr) (const char * cp); | |
3910 | int (PASCAL *pfn_gethostname) (char * name, int namelen); | |
3911 | struct hostent * (PASCAL *pfn_gethostbyname) (const char * name); | |
3912 | struct servent * (PASCAL *pfn_getservbyname) (const char * name, const char * proto); | |
ecd270eb | 3913 | int (PASCAL *pfn_getpeername) (SOCKET s, struct sockaddr *addr, int * namelen); |
962955c5 JR |
3914 | int (PASCAL *pfn_setsockopt) (SOCKET s, int level, int optname, |
3915 | const char * optval, int optlen); | |
3916 | int (PASCAL *pfn_listen) (SOCKET s, int backlog); | |
3917 | int (PASCAL *pfn_getsockname) (SOCKET s, struct sockaddr * name, | |
3918 | int * namelen); | |
3919 | SOCKET (PASCAL *pfn_accept) (SOCKET s, struct sockaddr * addr, int * addrlen); | |
3920 | int (PASCAL *pfn_recvfrom) (SOCKET s, char * buf, int len, int flags, | |
3921 | struct sockaddr * from, int * fromlen); | |
3922 | int (PASCAL *pfn_sendto) (SOCKET s, const char * buf, int len, int flags, | |
3923 | const struct sockaddr * to, int tolen); | |
3924 | ||
f1614061 RS |
3925 | /* SetHandleInformation is only needed to make sockets non-inheritable. */ |
3926 | BOOL (WINAPI *pfn_SetHandleInformation) (HANDLE object, DWORD mask, DWORD flags); | |
3927 | #ifndef HANDLE_FLAG_INHERIT | |
3928 | #define HANDLE_FLAG_INHERIT 1 | |
3929 | #endif | |
480b0c5b | 3930 | |
f249a012 RS |
3931 | HANDLE winsock_lib; |
3932 | static int winsock_inuse; | |
480b0c5b | 3933 | |
f249a012 | 3934 | BOOL |
480b0c5b GV |
3935 | term_winsock (void) |
3936 | { | |
f249a012 | 3937 | if (winsock_lib != NULL && winsock_inuse == 0) |
480b0c5b | 3938 | { |
f249a012 RS |
3939 | /* Not sure what would cause WSAENETDOWN, or even if it can happen |
3940 | after WSAStartup returns successfully, but it seems reasonable | |
3941 | to allow unloading winsock anyway in that case. */ | |
3942 | if (pfn_WSACleanup () == 0 || | |
3943 | pfn_WSAGetLastError () == WSAENETDOWN) | |
3944 | { | |
3945 | if (FreeLibrary (winsock_lib)) | |
3946 | winsock_lib = NULL; | |
3947 | return TRUE; | |
3948 | } | |
480b0c5b | 3949 | } |
f249a012 | 3950 | return FALSE; |
480b0c5b GV |
3951 | } |
3952 | ||
f249a012 RS |
3953 | BOOL |
3954 | init_winsock (int load_now) | |
480b0c5b GV |
3955 | { |
3956 | WSADATA winsockData; | |
3957 | ||
f249a012 RS |
3958 | if (winsock_lib != NULL) |
3959 | return TRUE; | |
f1614061 RS |
3960 | |
3961 | pfn_SetHandleInformation = NULL; | |
3962 | pfn_SetHandleInformation | |
3963 | = (void *) GetProcAddress (GetModuleHandle ("kernel32.dll"), | |
3964 | "SetHandleInformation"); | |
3965 | ||
64570b36 | 3966 | winsock_lib = LoadLibrary ("Ws2_32.dll"); |
480b0c5b GV |
3967 | |
3968 | if (winsock_lib != NULL) | |
3969 | { | |
3970 | /* dynamically link to socket functions */ | |
3971 | ||
3972 | #define LOAD_PROC(fn) \ | |
3973 | if ((pfn_##fn = (void *) GetProcAddress (winsock_lib, #fn)) == NULL) \ | |
3974 | goto fail; | |
3975 | ||
3976 | LOAD_PROC( WSAStartup ); | |
3977 | LOAD_PROC( WSASetLastError ); | |
3978 | LOAD_PROC( WSAGetLastError ); | |
26fb7bc4 | 3979 | LOAD_PROC( WSAEventSelect ); |
64570b36 KS |
3980 | LOAD_PROC( WSACreateEvent ); |
3981 | LOAD_PROC( WSACloseEvent ); | |
480b0c5b GV |
3982 | LOAD_PROC( socket ); |
3983 | LOAD_PROC( bind ); | |
3984 | LOAD_PROC( connect ); | |
3985 | LOAD_PROC( ioctlsocket ); | |
3986 | LOAD_PROC( recv ); | |
3987 | LOAD_PROC( send ); | |
3988 | LOAD_PROC( closesocket ); | |
3989 | LOAD_PROC( shutdown ); | |
3990 | LOAD_PROC( htons ); | |
3991 | LOAD_PROC( ntohs ); | |
3992 | LOAD_PROC( inet_addr ); | |
3993 | LOAD_PROC( gethostname ); | |
3994 | LOAD_PROC( gethostbyname ); | |
3995 | LOAD_PROC( getservbyname ); | |
ecd270eb | 3996 | LOAD_PROC( getpeername ); |
480b0c5b | 3997 | LOAD_PROC( WSACleanup ); |
962955c5 JR |
3998 | LOAD_PROC( setsockopt ); |
3999 | LOAD_PROC( listen ); | |
4000 | LOAD_PROC( getsockname ); | |
4001 | LOAD_PROC( accept ); | |
4002 | LOAD_PROC( recvfrom ); | |
4003 | LOAD_PROC( sendto ); | |
f249a012 RS |
4004 | #undef LOAD_PROC |
4005 | ||
480b0c5b GV |
4006 | /* specify version 1.1 of winsock */ |
4007 | if (pfn_WSAStartup (0x101, &winsockData) == 0) | |
4008 | { | |
f249a012 RS |
4009 | if (winsockData.wVersion != 0x101) |
4010 | goto fail; | |
4011 | ||
4012 | if (!load_now) | |
4013 | { | |
4014 | /* Report that winsock exists and is usable, but leave | |
4015 | socket functions disabled. I am assuming that calling | |
4016 | WSAStartup does not require any network interaction, | |
4017 | and in particular does not cause or require a dial-up | |
4018 | connection to be established. */ | |
4019 | ||
4020 | pfn_WSACleanup (); | |
4021 | FreeLibrary (winsock_lib); | |
4022 | winsock_lib = NULL; | |
4023 | } | |
4024 | winsock_inuse = 0; | |
4025 | return TRUE; | |
480b0c5b GV |
4026 | } |
4027 | ||
4028 | fail: | |
4029 | FreeLibrary (winsock_lib); | |
f249a012 | 4030 | winsock_lib = NULL; |
480b0c5b | 4031 | } |
f249a012 RS |
4032 | |
4033 | return FALSE; | |
480b0c5b GV |
4034 | } |
4035 | ||
4036 | ||
4037 | int h_errno = 0; | |
4038 | ||
f8381794 | 4039 | /* function to set h_errno for compatibility; map winsock error codes to |
480b0c5b GV |
4040 | normal system codes where they overlap (non-overlapping definitions |
4041 | are already in <sys/socket.h> */ | |
9bfb11f9 KS |
4042 | static void |
4043 | set_errno () | |
480b0c5b | 4044 | { |
f249a012 | 4045 | if (winsock_lib == NULL) |
480b0c5b GV |
4046 | h_errno = EINVAL; |
4047 | else | |
4048 | h_errno = pfn_WSAGetLastError (); | |
4049 | ||
4050 | switch (h_errno) | |
4051 | { | |
4052 | case WSAEACCES: h_errno = EACCES; break; | |
4053 | case WSAEBADF: h_errno = EBADF; break; | |
4054 | case WSAEFAULT: h_errno = EFAULT; break; | |
4055 | case WSAEINTR: h_errno = EINTR; break; | |
4056 | case WSAEINVAL: h_errno = EINVAL; break; | |
4057 | case WSAEMFILE: h_errno = EMFILE; break; | |
4058 | case WSAENAMETOOLONG: h_errno = ENAMETOOLONG; break; | |
4059 | case WSAENOTEMPTY: h_errno = ENOTEMPTY; break; | |
4060 | } | |
4061 | errno = h_errno; | |
4062 | } | |
4063 | ||
9bfb11f9 KS |
4064 | static void |
4065 | check_errno () | |
480b0c5b | 4066 | { |
f249a012 | 4067 | if (h_errno == 0 && winsock_lib != NULL) |
480b0c5b GV |
4068 | pfn_WSASetLastError (0); |
4069 | } | |
4070 | ||
d8fcc1b9 AI |
4071 | /* Extend strerror to handle the winsock-specific error codes. */ |
4072 | struct { | |
4073 | int errnum; | |
4074 | char * msg; | |
4075 | } _wsa_errlist[] = { | |
4076 | WSAEINTR , "Interrupted function call", | |
4077 | WSAEBADF , "Bad file descriptor", | |
4078 | WSAEACCES , "Permission denied", | |
4079 | WSAEFAULT , "Bad address", | |
4080 | WSAEINVAL , "Invalid argument", | |
4081 | WSAEMFILE , "Too many open files", | |
177c0ea7 | 4082 | |
d8fcc1b9 AI |
4083 | WSAEWOULDBLOCK , "Resource temporarily unavailable", |
4084 | WSAEINPROGRESS , "Operation now in progress", | |
4085 | WSAEALREADY , "Operation already in progress", | |
4086 | WSAENOTSOCK , "Socket operation on non-socket", | |
4087 | WSAEDESTADDRREQ , "Destination address required", | |
4088 | WSAEMSGSIZE , "Message too long", | |
4089 | WSAEPROTOTYPE , "Protocol wrong type for socket", | |
4090 | WSAENOPROTOOPT , "Bad protocol option", | |
4091 | WSAEPROTONOSUPPORT , "Protocol not supported", | |
4092 | WSAESOCKTNOSUPPORT , "Socket type not supported", | |
4093 | WSAEOPNOTSUPP , "Operation not supported", | |
4094 | WSAEPFNOSUPPORT , "Protocol family not supported", | |
4095 | WSAEAFNOSUPPORT , "Address family not supported by protocol family", | |
4096 | WSAEADDRINUSE , "Address already in use", | |
4097 | WSAEADDRNOTAVAIL , "Cannot assign requested address", | |
4098 | WSAENETDOWN , "Network is down", | |
4099 | WSAENETUNREACH , "Network is unreachable", | |
4100 | WSAENETRESET , "Network dropped connection on reset", | |
4101 | WSAECONNABORTED , "Software caused connection abort", | |
4102 | WSAECONNRESET , "Connection reset by peer", | |
4103 | WSAENOBUFS , "No buffer space available", | |
4104 | WSAEISCONN , "Socket is already connected", | |
4105 | WSAENOTCONN , "Socket is not connected", | |
4106 | WSAESHUTDOWN , "Cannot send after socket shutdown", | |
4107 | WSAETOOMANYREFS , "Too many references", /* not sure */ | |
4108 | WSAETIMEDOUT , "Connection timed out", | |
4109 | WSAECONNREFUSED , "Connection refused", | |
4110 | WSAELOOP , "Network loop", /* not sure */ | |
4111 | WSAENAMETOOLONG , "Name is too long", | |
4112 | WSAEHOSTDOWN , "Host is down", | |
4113 | WSAEHOSTUNREACH , "No route to host", | |
4114 | WSAENOTEMPTY , "Buffer not empty", /* not sure */ | |
4115 | WSAEPROCLIM , "Too many processes", | |
4116 | WSAEUSERS , "Too many users", /* not sure */ | |
4117 | WSAEDQUOT , "Double quote in host name", /* really not sure */ | |
4118 | WSAESTALE , "Data is stale", /* not sure */ | |
4119 | WSAEREMOTE , "Remote error", /* not sure */ | |
177c0ea7 | 4120 | |
d8fcc1b9 AI |
4121 | WSASYSNOTREADY , "Network subsystem is unavailable", |
4122 | WSAVERNOTSUPPORTED , "WINSOCK.DLL version out of range", | |
4123 | WSANOTINITIALISED , "Winsock not initialized successfully", | |
4124 | WSAEDISCON , "Graceful shutdown in progress", | |
4125 | #ifdef WSAENOMORE | |
4126 | WSAENOMORE , "No more operations allowed", /* not sure */ | |
4127 | WSAECANCELLED , "Operation cancelled", /* not sure */ | |
4128 | WSAEINVALIDPROCTABLE , "Invalid procedure table from service provider", | |
4129 | WSAEINVALIDPROVIDER , "Invalid service provider version number", | |
4130 | WSAEPROVIDERFAILEDINIT , "Unable to initialize a service provider", | |
aa5ee2a3 | 4131 | WSASYSCALLFAILURE , "System call failure", |
d8fcc1b9 AI |
4132 | WSASERVICE_NOT_FOUND , "Service not found", /* not sure */ |
4133 | WSATYPE_NOT_FOUND , "Class type not found", | |
4134 | WSA_E_NO_MORE , "No more resources available", /* really not sure */ | |
4135 | WSA_E_CANCELLED , "Operation already cancelled", /* really not sure */ | |
4136 | WSAEREFUSED , "Operation refused", /* not sure */ | |
4137 | #endif | |
177c0ea7 | 4138 | |
d8fcc1b9 AI |
4139 | WSAHOST_NOT_FOUND , "Host not found", |
4140 | WSATRY_AGAIN , "Authoritative host not found during name lookup", | |
4141 | WSANO_RECOVERY , "Non-recoverable error during name lookup", | |
4142 | WSANO_DATA , "Valid name, no data record of requested type", | |
4143 | ||
4144 | -1, NULL | |
4145 | }; | |
4146 | ||
4147 | char * | |
4148 | sys_strerror(int error_no) | |
4149 | { | |
4150 | int i; | |
4151 | static char unknown_msg[40]; | |
4152 | ||
a302c7ae AI |
4153 | if (error_no >= 0 && error_no < sys_nerr) |
4154 | return sys_errlist[error_no]; | |
d8fcc1b9 AI |
4155 | |
4156 | for (i = 0; _wsa_errlist[i].errnum >= 0; i++) | |
4157 | if (_wsa_errlist[i].errnum == error_no) | |
4158 | return _wsa_errlist[i].msg; | |
4159 | ||
4160 | sprintf(unknown_msg, "Unidentified error: %d", error_no); | |
4161 | return unknown_msg; | |
4162 | } | |
4163 | ||
480b0c5b GV |
4164 | /* [andrewi 3-May-96] I've had conflicting results using both methods, |
4165 | but I believe the method of keeping the socket handle separate (and | |
4166 | insuring it is not inheritable) is the correct one. */ | |
4167 | ||
4168 | //#define SOCK_REPLACE_HANDLE | |
4169 | ||
4170 | #ifdef SOCK_REPLACE_HANDLE | |
4171 | #define SOCK_HANDLE(fd) ((SOCKET) _get_osfhandle (fd)) | |
4172 | #else | |
4173 | #define SOCK_HANDLE(fd) ((SOCKET) fd_info[fd].hnd) | |
4174 | #endif | |
4175 | ||
962955c5 JR |
4176 | int socket_to_fd (SOCKET s); |
4177 | ||
480b0c5b GV |
4178 | int |
4179 | sys_socket(int af, int type, int protocol) | |
4180 | { | |
962955c5 | 4181 | SOCKET s; |
480b0c5b | 4182 | |
f249a012 | 4183 | if (winsock_lib == NULL) |
480b0c5b GV |
4184 | { |
4185 | h_errno = ENETDOWN; | |
4186 | return INVALID_SOCKET; | |
4187 | } | |
4188 | ||
4189 | check_errno (); | |
4190 | ||
4191 | /* call the real socket function */ | |
962955c5 | 4192 | s = pfn_socket (af, type, protocol); |
177c0ea7 | 4193 | |
480b0c5b | 4194 | if (s != INVALID_SOCKET) |
962955c5 | 4195 | return socket_to_fd (s); |
480b0c5b | 4196 | |
962955c5 JR |
4197 | set_errno (); |
4198 | return -1; | |
4199 | } | |
4200 | ||
4201 | /* Convert a SOCKET to a file descriptor. */ | |
4202 | int | |
4203 | socket_to_fd (SOCKET s) | |
4204 | { | |
4205 | int fd; | |
4206 | child_process * cp; | |
4207 | ||
4208 | /* Although under NT 3.5 _open_osfhandle will accept a socket | |
4209 | handle, if opened with SO_OPENTYPE == SO_SYNCHRONOUS_NONALERT, | |
4210 | that does not work under NT 3.1. However, we can get the same | |
4211 | effect by using a backdoor function to replace an existing | |
4212 | descriptor handle with the one we want. */ | |
4213 | ||
4214 | /* allocate a file descriptor (with appropriate flags) */ | |
4215 | fd = _open ("NUL:", _O_RDWR); | |
4216 | if (fd >= 0) | |
4217 | { | |
480b0c5b | 4218 | #ifdef SOCK_REPLACE_HANDLE |
962955c5 JR |
4219 | /* now replace handle to NUL with our socket handle */ |
4220 | CloseHandle ((HANDLE) _get_osfhandle (fd)); | |
4221 | _free_osfhnd (fd); | |
4222 | _set_osfhnd (fd, s); | |
4223 | /* setmode (fd, _O_BINARY); */ | |
480b0c5b | 4224 | #else |
962955c5 JR |
4225 | /* Make a non-inheritable copy of the socket handle. Note |
4226 | that it is possible that sockets aren't actually kernel | |
4227 | handles, which appears to be the case on Windows 9x when | |
4228 | the MS Proxy winsock client is installed. */ | |
4229 | { | |
4230 | /* Apparently there is a bug in NT 3.51 with some service | |
4231 | packs, which prevents using DuplicateHandle to make a | |
4232 | socket handle non-inheritable (causes WSACleanup to | |
4233 | hang). The work-around is to use SetHandleInformation | |
4234 | instead if it is available and implemented. */ | |
4235 | if (pfn_SetHandleInformation) | |
480b0c5b | 4236 | { |
962955c5 JR |
4237 | pfn_SetHandleInformation ((HANDLE) s, HANDLE_FLAG_INHERIT, 0); |
4238 | } | |
4239 | else | |
4240 | { | |
4241 | HANDLE parent = GetCurrentProcess (); | |
4242 | HANDLE new_s = INVALID_HANDLE_VALUE; | |
4243 | ||
4244 | if (DuplicateHandle (parent, | |
4245 | (HANDLE) s, | |
4246 | parent, | |
4247 | &new_s, | |
4248 | 0, | |
4249 | FALSE, | |
4250 | DUPLICATE_SAME_ACCESS)) | |
f1614061 | 4251 | { |
962955c5 JR |
4252 | /* It is possible that DuplicateHandle succeeds even |
4253 | though the socket wasn't really a kernel handle, | |
4254 | because a real handle has the same value. So | |
4255 | test whether the new handle really is a socket. */ | |
4256 | long nonblocking = 0; | |
4257 | if (pfn_ioctlsocket ((SOCKET) new_s, FIONBIO, &nonblocking) == 0) | |
ca149beb | 4258 | { |
962955c5 JR |
4259 | pfn_closesocket (s); |
4260 | s = (SOCKET) new_s; | |
4261 | } | |
4262 | else | |
4263 | { | |
4264 | CloseHandle (new_s); | |
4265 | } | |
177c0ea7 | 4266 | } |
480b0c5b | 4267 | } |
962955c5 JR |
4268 | } |
4269 | fd_info[fd].hnd = (HANDLE) s; | |
480b0c5b GV |
4270 | #endif |
4271 | ||
962955c5 JR |
4272 | /* set our own internal flags */ |
4273 | fd_info[fd].flags = FILE_SOCKET | FILE_BINARY | FILE_READ | FILE_WRITE; | |
480b0c5b | 4274 | |
962955c5 JR |
4275 | cp = new_child (); |
4276 | if (cp) | |
4277 | { | |
4278 | cp->fd = fd; | |
4279 | cp->status = STATUS_READ_ACKNOWLEDGED; | |
480b0c5b | 4280 | |
962955c5 JR |
4281 | /* attach child_process to fd_info */ |
4282 | if (fd_info[ fd ].cp != NULL) | |
4283 | { | |
4284 | DebPrint (("sys_socket: fd_info[%d] apparently in use!\n", fd)); | |
4285 | abort (); | |
480b0c5b GV |
4286 | } |
4287 | ||
962955c5 JR |
4288 | fd_info[ fd ].cp = cp; |
4289 | ||
4290 | /* success! */ | |
4291 | winsock_inuse++; /* count open sockets */ | |
4292 | return fd; | |
480b0c5b | 4293 | } |
480b0c5b | 4294 | |
962955c5 JR |
4295 | /* clean up */ |
4296 | _close (fd); | |
4297 | } | |
4298 | pfn_closesocket (s); | |
4299 | h_errno = EMFILE; | |
480b0c5b GV |
4300 | return -1; |
4301 | } | |
4302 | ||
4303 | ||
4304 | int | |
4305 | sys_bind (int s, const struct sockaddr * addr, int namelen) | |
4306 | { | |
f249a012 | 4307 | if (winsock_lib == NULL) |
480b0c5b GV |
4308 | { |
4309 | h_errno = ENOTSOCK; | |
4310 | return SOCKET_ERROR; | |
4311 | } | |
4312 | ||
4313 | check_errno (); | |
4314 | if (fd_info[s].flags & FILE_SOCKET) | |
4315 | { | |
4316 | int rc = pfn_bind (SOCK_HANDLE (s), addr, namelen); | |
4317 | if (rc == SOCKET_ERROR) | |
4318 | set_errno (); | |
4319 | return rc; | |
4320 | } | |
4321 | h_errno = ENOTSOCK; | |
4322 | return SOCKET_ERROR; | |
4323 | } | |
4324 | ||
4325 | ||
4326 | int | |
4327 | sys_connect (int s, const struct sockaddr * name, int namelen) | |
4328 | { | |
f249a012 | 4329 | if (winsock_lib == NULL) |
480b0c5b GV |
4330 | { |
4331 | h_errno = ENOTSOCK; | |
4332 | return SOCKET_ERROR; | |
4333 | } | |
4334 | ||
4335 | check_errno (); | |
4336 | if (fd_info[s].flags & FILE_SOCKET) | |
4337 | { | |
4338 | int rc = pfn_connect (SOCK_HANDLE (s), name, namelen); | |
4339 | if (rc == SOCKET_ERROR) | |
4340 | set_errno (); | |
4341 | return rc; | |
4342 | } | |
4343 | h_errno = ENOTSOCK; | |
4344 | return SOCKET_ERROR; | |
4345 | } | |
4346 | ||
4347 | u_short | |
4348 | sys_htons (u_short hostshort) | |
4349 | { | |
f249a012 | 4350 | return (winsock_lib != NULL) ? |
480b0c5b GV |
4351 | pfn_htons (hostshort) : hostshort; |
4352 | } | |
4353 | ||
4354 | u_short | |
4355 | sys_ntohs (u_short netshort) | |
4356 | { | |
f249a012 | 4357 | return (winsock_lib != NULL) ? |
480b0c5b GV |
4358 | pfn_ntohs (netshort) : netshort; |
4359 | } | |
4360 | ||
4361 | unsigned long | |
4362 | sys_inet_addr (const char * cp) | |
4363 | { | |
f249a012 | 4364 | return (winsock_lib != NULL) ? |
480b0c5b GV |
4365 | pfn_inet_addr (cp) : INADDR_NONE; |
4366 | } | |
4367 | ||
4368 | int | |
4369 | sys_gethostname (char * name, int namelen) | |
4370 | { | |
f249a012 | 4371 | if (winsock_lib != NULL) |
480b0c5b GV |
4372 | return pfn_gethostname (name, namelen); |
4373 | ||
4374 | if (namelen > MAX_COMPUTERNAME_LENGTH) | |
a302c7ae | 4375 | return !GetComputerName (name, (DWORD *)&namelen); |
480b0c5b GV |
4376 | |
4377 | h_errno = EFAULT; | |
4378 | return SOCKET_ERROR; | |
4379 | } | |
4380 | ||
4381 | struct hostent * | |
4382 | sys_gethostbyname(const char * name) | |
4383 | { | |
4384 | struct hostent * host; | |
4385 | ||
f249a012 | 4386 | if (winsock_lib == NULL) |
480b0c5b GV |
4387 | { |
4388 | h_errno = ENETDOWN; | |
4389 | return NULL; | |
4390 | } | |
4391 | ||
4392 | check_errno (); | |
4393 | host = pfn_gethostbyname (name); | |
4394 | if (!host) | |
4395 | set_errno (); | |
4396 | return host; | |
4397 | } | |
4398 | ||
4399 | struct servent * | |
4400 | sys_getservbyname(const char * name, const char * proto) | |
4401 | { | |
4402 | struct servent * serv; | |
4403 | ||
f249a012 | 4404 | if (winsock_lib == NULL) |
480b0c5b GV |
4405 | { |
4406 | h_errno = ENETDOWN; | |
4407 | return NULL; | |
4408 | } | |
4409 | ||
4410 | check_errno (); | |
4411 | serv = pfn_getservbyname (name, proto); | |
4412 | if (!serv) | |
4413 | set_errno (); | |
4414 | return serv; | |
4415 | } | |
4416 | ||
ecd270eb JR |
4417 | int |
4418 | sys_getpeername (int s, struct sockaddr *addr, int * namelen) | |
4419 | { | |
4420 | if (winsock_lib == NULL) | |
4421 | { | |
4422 | h_errno = ENETDOWN; | |
4423 | return SOCKET_ERROR; | |
4424 | } | |
4425 | ||
4426 | check_errno (); | |
4427 | if (fd_info[s].flags & FILE_SOCKET) | |
4428 | { | |
4429 | int rc = pfn_getpeername (SOCK_HANDLE (s), addr, namelen); | |
4430 | if (rc == SOCKET_ERROR) | |
4431 | set_errno (); | |
4432 | return rc; | |
4433 | } | |
4434 | h_errno = ENOTSOCK; | |
4435 | return SOCKET_ERROR; | |
4436 | } | |
4437 | ||
4438 | ||
380961a6 GV |
4439 | int |
4440 | sys_shutdown (int s, int how) | |
4441 | { | |
380961a6 GV |
4442 | if (winsock_lib == NULL) |
4443 | { | |
4444 | h_errno = ENETDOWN; | |
4445 | return SOCKET_ERROR; | |
4446 | } | |
4447 | ||
4448 | check_errno (); | |
4449 | if (fd_info[s].flags & FILE_SOCKET) | |
4450 | { | |
4451 | int rc = pfn_shutdown (SOCK_HANDLE (s), how); | |
962955c5 JR |
4452 | if (rc == SOCKET_ERROR) |
4453 | set_errno (); | |
4454 | return rc; | |
4455 | } | |
4456 | h_errno = ENOTSOCK; | |
4457 | return SOCKET_ERROR; | |
4458 | } | |
4459 | ||
4460 | int | |
a5a389bb | 4461 | sys_setsockopt (int s, int level, int optname, const void * optval, int optlen) |
962955c5 JR |
4462 | { |
4463 | if (winsock_lib == NULL) | |
4464 | { | |
4465 | h_errno = ENETDOWN; | |
4466 | return SOCKET_ERROR; | |
4467 | } | |
4468 | ||
4469 | check_errno (); | |
4470 | if (fd_info[s].flags & FILE_SOCKET) | |
4471 | { | |
4472 | int rc = pfn_setsockopt (SOCK_HANDLE (s), level, optname, | |
a5a389bb | 4473 | (const char *)optval, optlen); |
962955c5 JR |
4474 | if (rc == SOCKET_ERROR) |
4475 | set_errno (); | |
4476 | return rc; | |
4477 | } | |
4478 | h_errno = ENOTSOCK; | |
177c0ea7 | 4479 | return SOCKET_ERROR; |
962955c5 JR |
4480 | } |
4481 | ||
4482 | int | |
4483 | sys_listen (int s, int backlog) | |
4484 | { | |
4485 | if (winsock_lib == NULL) | |
4486 | { | |
4487 | h_errno = ENETDOWN; | |
4488 | return SOCKET_ERROR; | |
4489 | } | |
4490 | ||
4491 | check_errno (); | |
4492 | if (fd_info[s].flags & FILE_SOCKET) | |
4493 | { | |
4494 | int rc = pfn_listen (SOCK_HANDLE (s), backlog); | |
4495 | if (rc == SOCKET_ERROR) | |
4496 | set_errno (); | |
26fb7bc4 | 4497 | else |
64570b36 | 4498 | fd_info[s].flags |= FILE_LISTEN; |
962955c5 JR |
4499 | return rc; |
4500 | } | |
4501 | h_errno = ENOTSOCK; | |
177c0ea7 | 4502 | return SOCKET_ERROR; |
962955c5 JR |
4503 | } |
4504 | ||
4505 | int | |
4506 | sys_getsockname (int s, struct sockaddr * name, int * namelen) | |
4507 | { | |
4508 | if (winsock_lib == NULL) | |
4509 | { | |
4510 | h_errno = ENETDOWN; | |
4511 | return SOCKET_ERROR; | |
4512 | } | |
4513 | ||
4514 | check_errno (); | |
4515 | if (fd_info[s].flags & FILE_SOCKET) | |
4516 | { | |
4517 | int rc = pfn_getsockname (SOCK_HANDLE (s), name, namelen); | |
4518 | if (rc == SOCKET_ERROR) | |
4519 | set_errno (); | |
4520 | return rc; | |
4521 | } | |
4522 | h_errno = ENOTSOCK; | |
177c0ea7 | 4523 | return SOCKET_ERROR; |
962955c5 JR |
4524 | } |
4525 | ||
4526 | int | |
4527 | sys_accept (int s, struct sockaddr * addr, int * addrlen) | |
4528 | { | |
4529 | if (winsock_lib == NULL) | |
4530 | { | |
4531 | h_errno = ENETDOWN; | |
4532 | return -1; | |
4533 | } | |
4534 | ||
4535 | check_errno (); | |
26fb7bc4 | 4536 | if (fd_info[s].flags & FILE_LISTEN) |
962955c5 | 4537 | { |
a0ad1860 | 4538 | SOCKET t = pfn_accept (SOCK_HANDLE (s), addr, addrlen); |
64570b36 KS |
4539 | int fd = -1; |
4540 | if (t == INVALID_SOCKET) | |
4541 | set_errno (); | |
4542 | else | |
4543 | fd = socket_to_fd (t); | |
962955c5 | 4544 | |
64570b36 KS |
4545 | fd_info[s].cp->status = STATUS_READ_ACKNOWLEDGED; |
4546 | ResetEvent (fd_info[s].cp->char_avail); | |
4547 | return fd; | |
962955c5 JR |
4548 | } |
4549 | h_errno = ENOTSOCK; | |
4550 | return -1; | |
4551 | } | |
4552 | ||
4553 | int | |
4554 | sys_recvfrom (int s, char * buf, int len, int flags, | |
4555 | struct sockaddr * from, int * fromlen) | |
4556 | { | |
4557 | if (winsock_lib == NULL) | |
4558 | { | |
4559 | h_errno = ENETDOWN; | |
4560 | return SOCKET_ERROR; | |
4561 | } | |
4562 | ||
4563 | check_errno (); | |
4564 | if (fd_info[s].flags & FILE_SOCKET) | |
4565 | { | |
4566 | int rc = pfn_recvfrom (SOCK_HANDLE (s), buf, len, flags, from, fromlen); | |
4567 | if (rc == SOCKET_ERROR) | |
4568 | set_errno (); | |
4569 | return rc; | |
4570 | } | |
4571 | h_errno = ENOTSOCK; | |
4572 | return SOCKET_ERROR; | |
4573 | } | |
4574 | ||
4575 | int | |
4576 | sys_sendto (int s, const char * buf, int len, int flags, | |
4577 | const struct sockaddr * to, int tolen) | |
4578 | { | |
4579 | if (winsock_lib == NULL) | |
4580 | { | |
4581 | h_errno = ENETDOWN; | |
4582 | return SOCKET_ERROR; | |
4583 | } | |
4584 | ||
4585 | check_errno (); | |
4586 | if (fd_info[s].flags & FILE_SOCKET) | |
4587 | { | |
4588 | int rc = pfn_sendto (SOCK_HANDLE (s), buf, len, flags, to, tolen); | |
380961a6 GV |
4589 | if (rc == SOCKET_ERROR) |
4590 | set_errno (); | |
4591 | return rc; | |
4592 | } | |
4593 | h_errno = ENOTSOCK; | |
4594 | return SOCKET_ERROR; | |
4595 | } | |
4596 | ||
ecd270eb JR |
4597 | /* Windows does not have an fcntl function. Provide an implementation |
4598 | solely for making sockets non-blocking. */ | |
4599 | int | |
4600 | fcntl (int s, int cmd, int options) | |
4601 | { | |
4602 | if (winsock_lib == NULL) | |
4603 | { | |
4604 | h_errno = ENETDOWN; | |
4605 | return -1; | |
4606 | } | |
4607 | ||
4608 | check_errno (); | |
4609 | if (fd_info[s].flags & FILE_SOCKET) | |
4610 | { | |
4611 | if (cmd == F_SETFL && options == O_NDELAY) | |
4612 | { | |
4613 | unsigned long nblock = 1; | |
4614 | int rc = pfn_ioctlsocket (SOCK_HANDLE (s), FIONBIO, &nblock); | |
4615 | if (rc == SOCKET_ERROR) | |
4616 | set_errno(); | |
4617 | /* Keep track of the fact that we set this to non-blocking. */ | |
4618 | fd_info[s].flags |= FILE_NDELAY; | |
4619 | return rc; | |
4620 | } | |
4621 | else | |
4622 | { | |
4623 | h_errno = EINVAL; | |
4624 | return SOCKET_ERROR; | |
4625 | } | |
4626 | } | |
4627 | h_errno = ENOTSOCK; | |
4628 | return SOCKET_ERROR; | |
4629 | } | |
4630 | ||
480b0c5b GV |
4631 | #endif /* HAVE_SOCKETS */ |
4632 | ||
4633 | ||
4634 | /* Shadow main io functions: we need to handle pipes and sockets more | |
4635 | intelligently, and implement non-blocking mode as well. */ | |
4636 | ||
4637 | int | |
4638 | sys_close (int fd) | |
4639 | { | |
4640 | int rc; | |
4641 | ||
7559f399 | 4642 | if (fd < 0) |
480b0c5b GV |
4643 | { |
4644 | errno = EBADF; | |
4645 | return -1; | |
4646 | } | |
4647 | ||
7559f399 | 4648 | if (fd < MAXDESC && fd_info[fd].cp) |
480b0c5b GV |
4649 | { |
4650 | child_process * cp = fd_info[fd].cp; | |
4651 | ||
4652 | fd_info[fd].cp = NULL; | |
4653 | ||
4654 | if (CHILD_ACTIVE (cp)) | |
4655 | { | |
4656 | /* if last descriptor to active child_process then cleanup */ | |
4657 | int i; | |
4658 | for (i = 0; i < MAXDESC; i++) | |
4659 | { | |
4660 | if (i == fd) | |
4661 | continue; | |
4662 | if (fd_info[i].cp == cp) | |
4663 | break; | |
4664 | } | |
4665 | if (i == MAXDESC) | |
4666 | { | |
f249a012 | 4667 | #ifdef HAVE_SOCKETS |
480b0c5b GV |
4668 | if (fd_info[fd].flags & FILE_SOCKET) |
4669 | { | |
f249a012 RS |
4670 | #ifndef SOCK_REPLACE_HANDLE |
4671 | if (winsock_lib == NULL) abort (); | |
480b0c5b GV |
4672 | |
4673 | pfn_shutdown (SOCK_HANDLE (fd), 2); | |
4674 | rc = pfn_closesocket (SOCK_HANDLE (fd)); | |
f249a012 RS |
4675 | #endif |
4676 | winsock_inuse--; /* count open sockets */ | |
480b0c5b GV |
4677 | } |
4678 | #endif | |
4679 | delete_child (cp); | |
4680 | } | |
4681 | } | |
4682 | } | |
4683 | ||
4684 | /* Note that sockets do not need special treatment here (at least on | |
e9e23e23 | 4685 | NT and Windows 95 using the standard tcp/ip stacks) - it appears that |
480b0c5b GV |
4686 | closesocket is equivalent to CloseHandle, which is to be expected |
4687 | because socket handles are fully fledged kernel handles. */ | |
4688 | rc = _close (fd); | |
4689 | ||
7559f399 | 4690 | if (rc == 0 && fd < MAXDESC) |
480b0c5b GV |
4691 | fd_info[fd].flags = 0; |
4692 | ||
4693 | return rc; | |
4694 | } | |
4695 | ||
4696 | int | |
4697 | sys_dup (int fd) | |
4698 | { | |
4699 | int new_fd; | |
4700 | ||
4701 | new_fd = _dup (fd); | |
7559f399 | 4702 | if (new_fd >= 0 && new_fd < MAXDESC) |
480b0c5b GV |
4703 | { |
4704 | /* duplicate our internal info as well */ | |
4705 | fd_info[new_fd] = fd_info[fd]; | |
4706 | } | |
4707 | return new_fd; | |
4708 | } | |
4709 | ||
4710 | ||
4711 | int | |
4712 | sys_dup2 (int src, int dst) | |
4713 | { | |
4714 | int rc; | |
4715 | ||
4716 | if (dst < 0 || dst >= MAXDESC) | |
4717 | { | |
4718 | errno = EBADF; | |
4719 | return -1; | |
4720 | } | |
4721 | ||
4722 | /* make sure we close the destination first if it's a pipe or socket */ | |
4723 | if (src != dst && fd_info[dst].flags != 0) | |
4724 | sys_close (dst); | |
177c0ea7 | 4725 | |
480b0c5b GV |
4726 | rc = _dup2 (src, dst); |
4727 | if (rc == 0) | |
4728 | { | |
4729 | /* duplicate our internal info as well */ | |
4730 | fd_info[dst] = fd_info[src]; | |
4731 | } | |
4732 | return rc; | |
4733 | } | |
4734 | ||
480b0c5b GV |
4735 | /* Unix pipe() has only one arg */ |
4736 | int | |
4737 | sys_pipe (int * phandles) | |
4738 | { | |
4739 | int rc; | |
4740 | unsigned flags; | |
480b0c5b | 4741 | |
76b3903d GV |
4742 | /* make pipe handles non-inheritable; when we spawn a child, we |
4743 | replace the relevant handle with an inheritable one. Also put | |
4744 | pipes into binary mode; we will do text mode translation ourselves | |
4745 | if required. */ | |
4746 | rc = _pipe (phandles, 0, _O_NOINHERIT | _O_BINARY); | |
480b0c5b GV |
4747 | |
4748 | if (rc == 0) | |
4749 | { | |
cb72110d JR |
4750 | /* Protect against overflow, since Windows can open more handles than |
4751 | our fd_info array has room for. */ | |
4752 | if (phandles[0] >= MAXDESC || phandles[1] >= MAXDESC) | |
4753 | { | |
4754 | _close (phandles[0]); | |
4755 | _close (phandles[1]); | |
4756 | rc = -1; | |
4757 | } | |
4758 | else | |
4759 | { | |
4760 | flags = FILE_PIPE | FILE_READ | FILE_BINARY; | |
4761 | fd_info[phandles[0]].flags = flags; | |
480b0c5b | 4762 | |
cb72110d JR |
4763 | flags = FILE_PIPE | FILE_WRITE | FILE_BINARY; |
4764 | fd_info[phandles[1]].flags = flags; | |
4765 | } | |
480b0c5b GV |
4766 | } |
4767 | ||
4768 | return rc; | |
4769 | } | |
4770 | ||
f7554349 | 4771 | /* From ntproc.c */ |
78806724 | 4772 | extern int w32_pipe_read_delay; |
f7554349 | 4773 | |
480b0c5b GV |
4774 | /* Function to do blocking read of one byte, needed to implement |
4775 | select. It is only allowed on sockets and pipes. */ | |
4776 | int | |
4777 | _sys_read_ahead (int fd) | |
4778 | { | |
4779 | child_process * cp; | |
4780 | int rc; | |
4781 | ||
4782 | if (fd < 0 || fd >= MAXDESC) | |
4783 | return STATUS_READ_ERROR; | |
4784 | ||
4785 | cp = fd_info[fd].cp; | |
4786 | ||
4787 | if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY) | |
4788 | return STATUS_READ_ERROR; | |
4789 | ||
d888760c | 4790 | if ((fd_info[fd].flags & (FILE_PIPE | FILE_SERIAL | FILE_SOCKET)) == 0 |
480b0c5b GV |
4791 | || (fd_info[fd].flags & FILE_READ) == 0) |
4792 | { | |
d888760c | 4793 | DebPrint (("_sys_read_ahead: internal error: fd %d is not a pipe, serial port, or socket!\n", fd)); |
480b0c5b GV |
4794 | abort (); |
4795 | } | |
177c0ea7 | 4796 | |
480b0c5b | 4797 | cp->status = STATUS_READ_IN_PROGRESS; |
177c0ea7 | 4798 | |
480b0c5b | 4799 | if (fd_info[fd].flags & FILE_PIPE) |
f7554349 | 4800 | { |
f7554349 KH |
4801 | rc = _read (fd, &cp->chr, sizeof (char)); |
4802 | ||
4803 | /* Give subprocess time to buffer some more output for us before | |
e9e23e23 | 4804 | reporting that input is available; we need this because Windows 95 |
f7554349 KH |
4805 | connects DOS programs to pipes by making the pipe appear to be |
4806 | the normal console stdout - as a result most DOS programs will | |
d888760c | 4807 | write to stdout without buffering, ie. one character at a |
fbd6baed | 4808 | time. Even some W32 programs do this - "dir" in a command |
f7554349 KH |
4809 | shell on NT is very slow if we don't do this. */ |
4810 | if (rc > 0) | |
4811 | { | |
78806724 | 4812 | int wait = w32_pipe_read_delay; |
f7554349 KH |
4813 | |
4814 | if (wait > 0) | |
4815 | Sleep (wait); | |
4816 | else if (wait < 0) | |
4817 | while (++wait <= 0) | |
4818 | /* Yield remainder of our time slice, effectively giving a | |
4819 | temporary priority boost to the child process. */ | |
4820 | Sleep (0); | |
4821 | } | |
4822 | } | |
d888760c GM |
4823 | else if (fd_info[fd].flags & FILE_SERIAL) |
4824 | { | |
4825 | HANDLE hnd = fd_info[fd].hnd; | |
4826 | OVERLAPPED *ovl = &fd_info[fd].cp->ovl_read; | |
4827 | COMMTIMEOUTS ct; | |
4828 | ||
4829 | /* Configure timeouts for blocking read. */ | |
4830 | if (!GetCommTimeouts (hnd, &ct)) | |
4831 | return STATUS_READ_ERROR; | |
4832 | ct.ReadIntervalTimeout = 0; | |
4833 | ct.ReadTotalTimeoutMultiplier = 0; | |
4834 | ct.ReadTotalTimeoutConstant = 0; | |
4835 | if (!SetCommTimeouts (hnd, &ct)) | |
4836 | return STATUS_READ_ERROR; | |
4837 | ||
4838 | if (!ReadFile (hnd, &cp->chr, sizeof (char), (DWORD*) &rc, ovl)) | |
4839 | { | |
4840 | if (GetLastError () != ERROR_IO_PENDING) | |
4841 | return STATUS_READ_ERROR; | |
4842 | if (!GetOverlappedResult (hnd, ovl, (DWORD*) &rc, TRUE)) | |
4843 | return STATUS_READ_ERROR; | |
4844 | } | |
4845 | } | |
480b0c5b GV |
4846 | #ifdef HAVE_SOCKETS |
4847 | else if (fd_info[fd].flags & FILE_SOCKET) | |
ecd270eb JR |
4848 | { |
4849 | unsigned long nblock = 0; | |
4850 | /* We always want this to block, so temporarily disable NDELAY. */ | |
4851 | if (fd_info[fd].flags & FILE_NDELAY) | |
4852 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
4853 | ||
4854 | rc = pfn_recv (SOCK_HANDLE (fd), &cp->chr, sizeof (char), 0); | |
4855 | ||
4856 | if (fd_info[fd].flags & FILE_NDELAY) | |
4857 | { | |
4858 | nblock = 1; | |
4859 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
4860 | } | |
4861 | } | |
480b0c5b | 4862 | #endif |
177c0ea7 | 4863 | |
480b0c5b GV |
4864 | if (rc == sizeof (char)) |
4865 | cp->status = STATUS_READ_SUCCEEDED; | |
4866 | else | |
4867 | cp->status = STATUS_READ_FAILED; | |
4868 | ||
4869 | return cp->status; | |
4870 | } | |
4871 | ||
9bfb11f9 KS |
4872 | int |
4873 | _sys_wait_accept (int fd) | |
64570b36 KS |
4874 | { |
4875 | HANDLE hEv; | |
4876 | child_process * cp; | |
4877 | int rc; | |
4878 | ||
4879 | if (fd < 0 || fd >= MAXDESC) | |
4880 | return STATUS_READ_ERROR; | |
4881 | ||
4882 | cp = fd_info[fd].cp; | |
4883 | ||
4884 | if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY) | |
4885 | return STATUS_READ_ERROR; | |
4886 | ||
4887 | cp->status = STATUS_READ_FAILED; | |
4888 | ||
4889 | hEv = pfn_WSACreateEvent (); | |
4890 | rc = pfn_WSAEventSelect (SOCK_HANDLE (fd), hEv, FD_ACCEPT); | |
4891 | if (rc != SOCKET_ERROR) | |
4892 | { | |
4893 | rc = WaitForSingleObject (hEv, INFINITE); | |
4894 | pfn_WSAEventSelect (SOCK_HANDLE (fd), NULL, 0); | |
64570b36 KS |
4895 | if (rc == WAIT_OBJECT_0) |
4896 | cp->status = STATUS_READ_SUCCEEDED; | |
4897 | } | |
7046f191 | 4898 | pfn_WSACloseEvent (hEv); |
64570b36 KS |
4899 | |
4900 | return cp->status; | |
4901 | } | |
4902 | ||
480b0c5b GV |
4903 | int |
4904 | sys_read (int fd, char * buffer, unsigned int count) | |
4905 | { | |
4906 | int nchars; | |
480b0c5b GV |
4907 | int to_read; |
4908 | DWORD waiting; | |
76b3903d | 4909 | char * orig_buffer = buffer; |
480b0c5b | 4910 | |
7559f399 | 4911 | if (fd < 0) |
480b0c5b GV |
4912 | { |
4913 | errno = EBADF; | |
4914 | return -1; | |
4915 | } | |
4916 | ||
d888760c | 4917 | if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET | FILE_SERIAL)) |
480b0c5b GV |
4918 | { |
4919 | child_process *cp = fd_info[fd].cp; | |
4920 | ||
4921 | if ((fd_info[fd].flags & FILE_READ) == 0) | |
4922 | { | |
4923 | errno = EBADF; | |
4924 | return -1; | |
4925 | } | |
4926 | ||
76b3903d GV |
4927 | nchars = 0; |
4928 | ||
4929 | /* re-read CR carried over from last read */ | |
4930 | if (fd_info[fd].flags & FILE_LAST_CR) | |
4931 | { | |
4932 | if (fd_info[fd].flags & FILE_BINARY) abort (); | |
4933 | *buffer++ = 0x0d; | |
4934 | count--; | |
4935 | nchars++; | |
f52eb3ef | 4936 | fd_info[fd].flags &= ~FILE_LAST_CR; |
76b3903d GV |
4937 | } |
4938 | ||
480b0c5b GV |
4939 | /* presence of a child_process structure means we are operating in |
4940 | non-blocking mode - otherwise we just call _read directly. | |
4941 | Note that the child_process structure might be missing because | |
4942 | reap_subprocess has been called; in this case the pipe is | |
4943 | already broken, so calling _read on it is okay. */ | |
4944 | if (cp) | |
4945 | { | |
4946 | int current_status = cp->status; | |
4947 | ||
4948 | switch (current_status) | |
4949 | { | |
4950 | case STATUS_READ_FAILED: | |
4951 | case STATUS_READ_ERROR: | |
f52eb3ef GV |
4952 | /* report normal EOF if nothing in buffer */ |
4953 | if (nchars <= 0) | |
4954 | fd_info[fd].flags |= FILE_AT_EOF; | |
4955 | return nchars; | |
480b0c5b GV |
4956 | |
4957 | case STATUS_READ_READY: | |
4958 | case STATUS_READ_IN_PROGRESS: | |
4959 | DebPrint (("sys_read called when read is in progress\n")); | |
4960 | errno = EWOULDBLOCK; | |
4961 | return -1; | |
4962 | ||
4963 | case STATUS_READ_SUCCEEDED: | |
4964 | /* consume read-ahead char */ | |
4965 | *buffer++ = cp->chr; | |
4966 | count--; | |
76b3903d | 4967 | nchars++; |
480b0c5b GV |
4968 | cp->status = STATUS_READ_ACKNOWLEDGED; |
4969 | ResetEvent (cp->char_avail); | |
4970 | ||
4971 | case STATUS_READ_ACKNOWLEDGED: | |
4972 | break; | |
4973 | ||
4974 | default: | |
4975 | DebPrint (("sys_read: bad status %d\n", current_status)); | |
4976 | errno = EBADF; | |
4977 | return -1; | |
4978 | } | |
4979 | ||
4980 | if (fd_info[fd].flags & FILE_PIPE) | |
4981 | { | |
4982 | PeekNamedPipe ((HANDLE) _get_osfhandle (fd), NULL, 0, NULL, &waiting, NULL); | |
4983 | to_read = min (waiting, (DWORD) count); | |
f52eb3ef GV |
4984 | |
4985 | if (to_read > 0) | |
4986 | nchars += _read (fd, buffer, to_read); | |
480b0c5b | 4987 | } |
d888760c GM |
4988 | else if (fd_info[fd].flags & FILE_SERIAL) |
4989 | { | |
4990 | HANDLE hnd = fd_info[fd].hnd; | |
4991 | OVERLAPPED *ovl = &fd_info[fd].cp->ovl_read; | |
4992 | DWORD err = 0; | |
4993 | int rc = 0; | |
4994 | COMMTIMEOUTS ct; | |
4995 | ||
4996 | if (count > 0) | |
4997 | { | |
4998 | /* Configure timeouts for non-blocking read. */ | |
4999 | if (!GetCommTimeouts (hnd, &ct)) | |
5000 | { | |
5001 | errno = EIO; | |
5002 | return -1; | |
5003 | } | |
5004 | ct.ReadIntervalTimeout = MAXDWORD; | |
5005 | ct.ReadTotalTimeoutMultiplier = 0; | |
5006 | ct.ReadTotalTimeoutConstant = 0; | |
5007 | if (!SetCommTimeouts (hnd, &ct)) | |
5008 | { | |
5009 | errno = EIO; | |
5010 | return -1; | |
5011 | } | |
5012 | ||
5013 | if (!ResetEvent (ovl->hEvent)) | |
5014 | { | |
5015 | errno = EIO; | |
5016 | return -1; | |
5017 | } | |
5018 | if (!ReadFile (hnd, buffer, count, (DWORD*) &rc, ovl)) | |
5019 | { | |
5020 | if (GetLastError () != ERROR_IO_PENDING) | |
5021 | { | |
5022 | errno = EIO; | |
5023 | return -1; | |
5024 | } | |
5025 | if (!GetOverlappedResult (hnd, ovl, (DWORD*) &rc, TRUE)) | |
5026 | { | |
5027 | errno = EIO; | |
5028 | return -1; | |
5029 | } | |
5030 | } | |
5031 | nchars += rc; | |
5032 | } | |
5033 | } | |
480b0c5b GV |
5034 | #ifdef HAVE_SOCKETS |
5035 | else /* FILE_SOCKET */ | |
5036 | { | |
f249a012 | 5037 | if (winsock_lib == NULL) abort (); |
480b0c5b GV |
5038 | |
5039 | /* do the equivalent of a non-blocking read */ | |
5040 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONREAD, &waiting); | |
76b3903d | 5041 | if (waiting == 0 && nchars == 0) |
480b0c5b GV |
5042 | { |
5043 | h_errno = errno = EWOULDBLOCK; | |
5044 | return -1; | |
5045 | } | |
5046 | ||
480b0c5b GV |
5047 | if (waiting) |
5048 | { | |
5049 | /* always use binary mode for sockets */ | |
76b3903d GV |
5050 | int res = pfn_recv (SOCK_HANDLE (fd), buffer, count, 0); |
5051 | if (res == SOCKET_ERROR) | |
480b0c5b GV |
5052 | { |
5053 | DebPrint(("sys_read.recv failed with error %d on socket %ld\n", | |
5054 | pfn_WSAGetLastError (), SOCK_HANDLE (fd))); | |
76b3903d GV |
5055 | set_errno (); |
5056 | return -1; | |
480b0c5b | 5057 | } |
76b3903d | 5058 | nchars += res; |
480b0c5b GV |
5059 | } |
5060 | } | |
5061 | #endif | |
5062 | } | |
5063 | else | |
f52eb3ef GV |
5064 | { |
5065 | int nread = _read (fd, buffer, count); | |
5066 | if (nread >= 0) | |
5067 | nchars += nread; | |
5068 | else if (nchars == 0) | |
5069 | nchars = nread; | |
5070 | } | |
76b3903d | 5071 | |
f52eb3ef GV |
5072 | if (nchars <= 0) |
5073 | fd_info[fd].flags |= FILE_AT_EOF; | |
76b3903d | 5074 | /* Perform text mode translation if required. */ |
f52eb3ef | 5075 | else if ((fd_info[fd].flags & FILE_BINARY) == 0) |
76b3903d GV |
5076 | { |
5077 | nchars = crlf_to_lf (nchars, orig_buffer); | |
5078 | /* If buffer contains only CR, return that. To be absolutely | |
5079 | sure we should attempt to read the next char, but in | |
5080 | practice a CR to be followed by LF would not appear by | |
5081 | itself in the buffer. */ | |
5082 | if (nchars > 1 && orig_buffer[nchars - 1] == 0x0d) | |
5083 | { | |
5084 | fd_info[fd].flags |= FILE_LAST_CR; | |
5085 | nchars--; | |
5086 | } | |
76b3903d | 5087 | } |
480b0c5b GV |
5088 | } |
5089 | else | |
5090 | nchars = _read (fd, buffer, count); | |
5091 | ||
76b3903d | 5092 | return nchars; |
480b0c5b GV |
5093 | } |
5094 | ||
d888760c GM |
5095 | /* From w32xfns.c */ |
5096 | extern HANDLE interrupt_handle; | |
5097 | ||
480b0c5b GV |
5098 | /* For now, don't bother with a non-blocking mode */ |
5099 | int | |
5100 | sys_write (int fd, const void * buffer, unsigned int count) | |
5101 | { | |
5102 | int nchars; | |
5103 | ||
7559f399 | 5104 | if (fd < 0) |
480b0c5b GV |
5105 | { |
5106 | errno = EBADF; | |
5107 | return -1; | |
5108 | } | |
5109 | ||
d888760c | 5110 | if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET | FILE_SERIAL)) |
76b3903d GV |
5111 | { |
5112 | if ((fd_info[fd].flags & FILE_WRITE) == 0) | |
5113 | { | |
5114 | errno = EBADF; | |
5115 | return -1; | |
5116 | } | |
5117 | ||
5118 | /* Perform text mode translation if required. */ | |
5119 | if ((fd_info[fd].flags & FILE_BINARY) == 0) | |
5120 | { | |
5121 | char * tmpbuf = alloca (count * 2); | |
5122 | unsigned char * src = (void *)buffer; | |
5123 | unsigned char * dst = tmpbuf; | |
5124 | int nbytes = count; | |
5125 | ||
5126 | while (1) | |
5127 | { | |
5128 | unsigned char *next; | |
5129 | /* copy next line or remaining bytes */ | |
5130 | next = _memccpy (dst, src, '\n', nbytes); | |
5131 | if (next) | |
5132 | { | |
5133 | /* copied one line ending with '\n' */ | |
5134 | int copied = next - dst; | |
5135 | nbytes -= copied; | |
5136 | src += copied; | |
5137 | /* insert '\r' before '\n' */ | |
5138 | next[-1] = '\r'; | |
5139 | next[0] = '\n'; | |
5140 | dst = next + 1; | |
5141 | count++; | |
177c0ea7 | 5142 | } |
76b3903d GV |
5143 | else |
5144 | /* copied remaining partial line -> now finished */ | |
5145 | break; | |
5146 | } | |
5147 | buffer = tmpbuf; | |
5148 | } | |
5149 | } | |
5150 | ||
d888760c GM |
5151 | if (fd < MAXDESC && fd_info[fd].flags & FILE_SERIAL) |
5152 | { | |
5153 | HANDLE hnd = (HANDLE) _get_osfhandle (fd); | |
5154 | OVERLAPPED *ovl = &fd_info[fd].cp->ovl_write; | |
5155 | HANDLE wait_hnd[2] = { interrupt_handle, ovl->hEvent }; | |
5156 | DWORD active = 0; | |
5157 | ||
5158 | if (!WriteFile (hnd, buffer, count, (DWORD*) &nchars, ovl)) | |
5159 | { | |
5160 | if (GetLastError () != ERROR_IO_PENDING) | |
5161 | { | |
5162 | errno = EIO; | |
5163 | return -1; | |
5164 | } | |
5165 | if (detect_input_pending ()) | |
5166 | active = MsgWaitForMultipleObjects (2, wait_hnd, FALSE, INFINITE, | |
5167 | QS_ALLINPUT); | |
5168 | else | |
5169 | active = WaitForMultipleObjects (2, wait_hnd, FALSE, INFINITE); | |
5170 | if (active == WAIT_OBJECT_0) | |
5171 | { /* User pressed C-g, cancel write, then leave. Don't bother | |
5172 | cleaning up as we may only get stuck in buggy drivers. */ | |
5173 | PurgeComm (hnd, PURGE_TXABORT | PURGE_TXCLEAR); | |
5174 | CancelIo (hnd); | |
5175 | errno = EIO; | |
5176 | return -1; | |
5177 | } | |
5178 | if (active == WAIT_OBJECT_0 + 1 | |
5179 | && !GetOverlappedResult (hnd, ovl, (DWORD*) &nchars, TRUE)) | |
5180 | { | |
5181 | errno = EIO; | |
5182 | return -1; | |
5183 | } | |
5184 | } | |
5185 | } | |
5186 | else | |
480b0c5b | 5187 | #ifdef HAVE_SOCKETS |
7559f399 | 5188 | if (fd < MAXDESC && fd_info[fd].flags & FILE_SOCKET) |
480b0c5b | 5189 | { |
30a32e0e | 5190 | unsigned long nblock = 0; |
f249a012 | 5191 | if (winsock_lib == NULL) abort (); |
30a32e0e JR |
5192 | |
5193 | /* TODO: implement select() properly so non-blocking I/O works. */ | |
5194 | /* For now, make sure the write blocks. */ | |
5195 | if (fd_info[fd].flags & FILE_NDELAY) | |
5196 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
5197 | ||
480b0c5b | 5198 | nchars = pfn_send (SOCK_HANDLE (fd), buffer, count, 0); |
30a32e0e JR |
5199 | |
5200 | /* Set the socket back to non-blocking if it was before, | |
5201 | for other operations that support it. */ | |
5202 | if (fd_info[fd].flags & FILE_NDELAY) | |
5203 | { | |
5204 | nblock = 1; | |
5205 | pfn_ioctlsocket (SOCK_HANDLE (fd), FIONBIO, &nblock); | |
5206 | } | |
5207 | ||
480b0c5b GV |
5208 | if (nchars == SOCKET_ERROR) |
5209 | { | |
670773af | 5210 | DebPrint(("sys_write.send failed with error %d on socket %ld\n", |
480b0c5b GV |
5211 | pfn_WSAGetLastError (), SOCK_HANDLE (fd))); |
5212 | set_errno (); | |
5213 | } | |
5214 | } | |
5215 | else | |
5216 | #endif | |
5217 | nchars = _write (fd, buffer, count); | |
5218 | ||
5219 | return nchars; | |
5220 | } | |
5221 | ||
f52eb3ef GV |
5222 | static void |
5223 | check_windows_init_file () | |
5224 | { | |
5225 | extern int noninteractive, inhibit_window_system; | |
5226 | ||
5227 | /* A common indication that Emacs is not installed properly is when | |
5228 | it cannot find the Windows installation file. If this file does | |
5229 | not exist in the expected place, tell the user. */ | |
5230 | ||
177c0ea7 | 5231 | if (!noninteractive && !inhibit_window_system) |
d54abccd GV |
5232 | { |
5233 | extern Lisp_Object Vwindow_system, Vload_path, Qfile_exists_p; | |
a0b9c838 | 5234 | Lisp_Object objs[2]; |
96ef7d42 | 5235 | Lisp_Object full_load_path; |
d54abccd GV |
5236 | Lisp_Object init_file; |
5237 | int fd; | |
f52eb3ef | 5238 | |
a0b9c838 GV |
5239 | objs[0] = Vload_path; |
5240 | objs[1] = decode_env_path (0, (getenv ("EMACSLOADPATH"))); | |
5241 | full_load_path = Fappend (2, objs); | |
d54abccd | 5242 | init_file = build_string ("term/w32-win"); |
c50a2aa6 | 5243 | fd = openp (full_load_path, init_file, Fget_load_suffixes (), NULL, Qnil); |
177c0ea7 | 5244 | if (fd < 0) |
d54abccd | 5245 | { |
96ef7d42 | 5246 | Lisp_Object load_path_print = Fprin1_to_string (full_load_path, Qnil); |
d5db4077 KR |
5247 | char *init_file_name = SDATA (init_file); |
5248 | char *load_path = SDATA (load_path_print); | |
acc23b87 KS |
5249 | char *buffer = alloca (1024 |
5250 | + strlen (init_file_name) | |
5251 | + strlen (load_path)); | |
d54abccd | 5252 | |
177c0ea7 | 5253 | sprintf (buffer, |
d54abccd GV |
5254 | "The Emacs Windows initialization file \"%s.el\" " |
5255 | "could not be found in your Emacs installation. " | |
5256 | "Emacs checked the following directories for this file:\n" | |
5257 | "\n%s\n\n" | |
5258 | "When Emacs cannot find this file, it usually means that it " | |
5259 | "was not installed properly, or its distribution file was " | |
5260 | "not unpacked properly.\nSee the README.W32 file in the " | |
5261 | "top-level Emacs directory for more information.", | |
5262 | init_file_name, load_path); | |
5263 | MessageBox (NULL, | |
5264 | buffer, | |
5265 | "Emacs Abort Dialog", | |
5266 | MB_OK | MB_ICONEXCLAMATION | MB_TASKMODAL); | |
f52eb3ef GV |
5267 | /* Use the low-level Emacs abort. */ |
5268 | #undef abort | |
d54abccd GV |
5269 | abort (); |
5270 | } | |
5271 | else | |
5272 | { | |
a302c7ae | 5273 | _close (fd); |
d54abccd | 5274 | } |
f52eb3ef | 5275 | } |
f52eb3ef | 5276 | } |
480b0c5b GV |
5277 | |
5278 | void | |
5279 | term_ntproc () | |
5280 | { | |
5281 | #ifdef HAVE_SOCKETS | |
5282 | /* shutdown the socket interface if necessary */ | |
5283 | term_winsock (); | |
5284 | #endif | |
52c7f9ee JR |
5285 | |
5286 | term_w32select (); | |
480b0c5b GV |
5287 | } |
5288 | ||
5289 | void | |
5290 | init_ntproc () | |
5291 | { | |
5292 | #ifdef HAVE_SOCKETS | |
f249a012 RS |
5293 | /* Initialise the socket interface now if available and requested by |
5294 | the user by defining PRELOAD_WINSOCK; otherwise loading will be | |
fbd6baed | 5295 | delayed until open-network-stream is called (w32-has-winsock can |
f249a012 RS |
5296 | also be used to dynamically load or reload winsock). |
5297 | ||
5298 | Conveniently, init_environment is called before us, so | |
5299 | PRELOAD_WINSOCK can be set in the registry. */ | |
5300 | ||
5301 | /* Always initialize this correctly. */ | |
5302 | winsock_lib = NULL; | |
5303 | ||
5304 | if (getenv ("PRELOAD_WINSOCK") != NULL) | |
5305 | init_winsock (TRUE); | |
480b0c5b GV |
5306 | #endif |
5307 | ||
5308 | /* Initial preparation for subprocess support: replace our standard | |
5309 | handles with non-inheritable versions. */ | |
5310 | { | |
5311 | HANDLE parent; | |
5312 | HANDLE stdin_save = INVALID_HANDLE_VALUE; | |
5313 | HANDLE stdout_save = INVALID_HANDLE_VALUE; | |
5314 | HANDLE stderr_save = INVALID_HANDLE_VALUE; | |
5315 | ||
5316 | parent = GetCurrentProcess (); | |
5317 | ||
5318 | /* ignore errors when duplicating and closing; typically the | |
5319 | handles will be invalid when running as a gui program. */ | |
177c0ea7 JB |
5320 | DuplicateHandle (parent, |
5321 | GetStdHandle (STD_INPUT_HANDLE), | |
480b0c5b | 5322 | parent, |
177c0ea7 JB |
5323 | &stdin_save, |
5324 | 0, | |
5325 | FALSE, | |
480b0c5b | 5326 | DUPLICATE_SAME_ACCESS); |
177c0ea7 | 5327 | |
480b0c5b GV |
5328 | DuplicateHandle (parent, |
5329 | GetStdHandle (STD_OUTPUT_HANDLE), | |
5330 | parent, | |
5331 | &stdout_save, | |
5332 | 0, | |
5333 | FALSE, | |
5334 | DUPLICATE_SAME_ACCESS); | |
177c0ea7 | 5335 | |
480b0c5b GV |
5336 | DuplicateHandle (parent, |
5337 | GetStdHandle (STD_ERROR_HANDLE), | |
5338 | parent, | |
5339 | &stderr_save, | |
5340 | 0, | |
5341 | FALSE, | |
5342 | DUPLICATE_SAME_ACCESS); | |
177c0ea7 | 5343 | |
480b0c5b GV |
5344 | fclose (stdin); |
5345 | fclose (stdout); | |
5346 | fclose (stderr); | |
5347 | ||
5348 | if (stdin_save != INVALID_HANDLE_VALUE) | |
5349 | _open_osfhandle ((long) stdin_save, O_TEXT); | |
5350 | else | |
76b3903d GV |
5351 | _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY); |
5352 | _fdopen (0, "r"); | |
480b0c5b GV |
5353 | |
5354 | if (stdout_save != INVALID_HANDLE_VALUE) | |
5355 | _open_osfhandle ((long) stdout_save, O_TEXT); | |
5356 | else | |
76b3903d GV |
5357 | _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY); |
5358 | _fdopen (1, "w"); | |
480b0c5b GV |
5359 | |
5360 | if (stderr_save != INVALID_HANDLE_VALUE) | |
5361 | _open_osfhandle ((long) stderr_save, O_TEXT); | |
5362 | else | |
76b3903d GV |
5363 | _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY); |
5364 | _fdopen (2, "w"); | |
480b0c5b GV |
5365 | } |
5366 | ||
5367 | /* unfortunately, atexit depends on implementation of malloc */ | |
5368 | /* atexit (term_ntproc); */ | |
5369 | signal (SIGABRT, term_ntproc); | |
76b3903d GV |
5370 | |
5371 | /* determine which drives are fixed, for GetCachedVolumeInformation */ | |
5372 | { | |
5373 | /* GetDriveType must have trailing backslash. */ | |
5374 | char drive[] = "A:\\"; | |
5375 | ||
5376 | /* Loop over all possible drive letters */ | |
5377 | while (*drive <= 'Z') | |
5378 | { | |
5379 | /* Record if this drive letter refers to a fixed drive. */ | |
177c0ea7 | 5380 | fixed_drives[DRIVE_INDEX (*drive)] = |
76b3903d GV |
5381 | (GetDriveType (drive) == DRIVE_FIXED); |
5382 | ||
5383 | (*drive)++; | |
5384 | } | |
a302c7ae AI |
5385 | |
5386 | /* Reset the volume info cache. */ | |
5387 | volume_cache = NULL; | |
76b3903d | 5388 | } |
177c0ea7 | 5389 | |
d54abccd GV |
5390 | /* Check to see if Emacs has been installed correctly. */ |
5391 | check_windows_init_file (); | |
480b0c5b GV |
5392 | } |
5393 | ||
a8c3a596 JR |
5394 | /* |
5395 | shutdown_handler ensures that buffers' autosave files are | |
5396 | up to date when the user logs off, or the system shuts down. | |
5397 | */ | |
5398 | BOOL WINAPI shutdown_handler(DWORD type) | |
5399 | { | |
5400 | /* Ctrl-C and Ctrl-Break are already suppressed, so don't handle them. */ | |
5401 | if (type == CTRL_CLOSE_EVENT /* User closes console window. */ | |
5402 | || type == CTRL_LOGOFF_EVENT /* User logs off. */ | |
5403 | || type == CTRL_SHUTDOWN_EVENT) /* User shutsdown. */ | |
5404 | { | |
5405 | /* Shut down cleanly, making sure autosave files are up to date. */ | |
5406 | shut_down_emacs (0, 0, Qnil); | |
5407 | } | |
5408 | ||
7046f191 | 5409 | /* Allow other handlers to handle this signal. */ |
a8c3a596 JR |
5410 | return FALSE; |
5411 | } | |
5412 | ||
9785d95b BK |
5413 | /* |
5414 | globals_of_w32 is used to initialize those global variables that | |
5415 | must always be initialized on startup even when the global variable | |
5416 | initialized is non zero (see the function main in emacs.c). | |
5417 | */ | |
9bfb11f9 KS |
5418 | void |
5419 | globals_of_w32 () | |
9785d95b | 5420 | { |
74258518 JR |
5421 | HMODULE kernel32 = GetModuleHandle ("kernel32.dll"); |
5422 | ||
5423 | get_process_times_fn = (GetProcessTimes_Proc) | |
5424 | GetProcAddress (kernel32, "GetProcessTimes"); | |
5425 | ||
9785d95b BK |
5426 | g_b_init_is_windows_9x = 0; |
5427 | g_b_init_open_process_token = 0; | |
5428 | g_b_init_get_token_information = 0; | |
5429 | g_b_init_lookup_account_sid = 0; | |
5430 | g_b_init_get_sid_identifier_authority = 0; | |
9d95a291 EZ |
5431 | g_b_init_get_sid_sub_authority = 0; |
5432 | g_b_init_get_sid_sub_authority_count = 0; | |
8aaaec6b EZ |
5433 | g_b_init_get_file_security = 0; |
5434 | g_b_init_get_security_descriptor_owner = 0; | |
5435 | g_b_init_get_security_descriptor_group = 0; | |
5436 | g_b_init_is_valid_sid = 0; | |
7c80d5ec EZ |
5437 | g_b_init_create_toolhelp32_snapshot = 0; |
5438 | g_b_init_process32_first = 0; | |
5439 | g_b_init_process32_next = 0; | |
5440 | g_b_init_open_thread_token = 0; | |
5441 | g_b_init_impersonate_self = 0; | |
5442 | g_b_init_revert_to_self = 0; | |
5443 | g_b_init_get_process_memory_info = 0; | |
5444 | g_b_init_get_process_working_set_size = 0; | |
5445 | g_b_init_global_memory_status = 0; | |
5446 | g_b_init_global_memory_status_ex = 0; | |
a8c3a596 JR |
5447 | /* The following sets a handler for shutdown notifications for |
5448 | console apps. This actually applies to Emacs in both console and | |
5449 | GUI modes, since we had to fool windows into thinking emacs is a | |
5450 | console application to get console mode to work. */ | |
5451 | SetConsoleCtrlHandler(shutdown_handler, TRUE); | |
8aaaec6b EZ |
5452 | |
5453 | /* "None" is the default group name on standalone workstations. */ | |
5454 | strcpy (dflt_group_name, "None"); | |
9785d95b BK |
5455 | } |
5456 | ||
d888760c GM |
5457 | /* For make-serial-process */ |
5458 | int serial_open (char *port) | |
5459 | { | |
5460 | HANDLE hnd; | |
5461 | child_process *cp; | |
5462 | int fd = -1; | |
5463 | ||
5464 | hnd = CreateFile (port, GENERIC_READ | GENERIC_WRITE, 0, 0, | |
5465 | OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0); | |
5466 | if (hnd == INVALID_HANDLE_VALUE) | |
5467 | error ("Could not open %s", port); | |
5468 | fd = (int) _open_osfhandle ((int) hnd, 0); | |
5469 | if (fd == -1) | |
5470 | error ("Could not open %s", port); | |
5471 | ||
5472 | cp = new_child (); | |
5473 | if (!cp) | |
5474 | error ("Could not create child process"); | |
5475 | cp->fd = fd; | |
5476 | cp->status = STATUS_READ_ACKNOWLEDGED; | |
5477 | fd_info[ fd ].hnd = hnd; | |
5478 | fd_info[ fd ].flags |= | |
5479 | FILE_READ | FILE_WRITE | FILE_BINARY | FILE_SERIAL; | |
5480 | if (fd_info[ fd ].cp != NULL) | |
5481 | { | |
5482 | error ("fd_info[fd = %d] is already in use", fd); | |
5483 | } | |
5484 | fd_info[ fd ].cp = cp; | |
5485 | cp->ovl_read.hEvent = CreateEvent (NULL, TRUE, FALSE, NULL); | |
5486 | if (cp->ovl_read.hEvent == NULL) | |
5487 | error ("Could not create read event"); | |
5488 | cp->ovl_write.hEvent = CreateEvent (NULL, TRUE, FALSE, NULL); | |
5489 | if (cp->ovl_write.hEvent == NULL) | |
5490 | error ("Could not create write event"); | |
5491 | ||
5492 | return fd; | |
5493 | } | |
5494 | ||
5495 | /* For serial-process-configure */ | |
5496 | void | |
5497 | serial_configure (struct Lisp_Process *p, | |
5498 | Lisp_Object contact) | |
5499 | { | |
5500 | Lisp_Object childp2 = Qnil; | |
5501 | Lisp_Object tem = Qnil; | |
5502 | HANDLE hnd; | |
5503 | DCB dcb; | |
5504 | COMMTIMEOUTS ct; | |
5505 | char summary[4] = "???"; /* This usually becomes "8N1". */ | |
5506 | ||
5507 | if ((fd_info[ p->outfd ].flags & FILE_SERIAL) == 0) | |
5508 | error ("Not a serial process"); | |
5509 | hnd = fd_info[ p->outfd ].hnd; | |
5510 | ||
5511 | childp2 = Fcopy_sequence (p->childp); | |
5512 | ||
5513 | /* Initialize timeouts for blocking read and blocking write. */ | |
5514 | if (!GetCommTimeouts (hnd, &ct)) | |
5515 | error ("GetCommTimeouts() failed"); | |
5516 | ct.ReadIntervalTimeout = 0; | |
5517 | ct.ReadTotalTimeoutMultiplier = 0; | |
5518 | ct.ReadTotalTimeoutConstant = 0; | |
5519 | ct.WriteTotalTimeoutMultiplier = 0; | |
5520 | ct.WriteTotalTimeoutConstant = 0; | |
5521 | if (!SetCommTimeouts (hnd, &ct)) | |
5522 | error ("SetCommTimeouts() failed"); | |
5523 | /* Read port attributes and prepare default configuration. */ | |
5524 | memset (&dcb, 0, sizeof (dcb)); | |
5525 | dcb.DCBlength = sizeof (DCB); | |
5526 | if (!GetCommState (hnd, &dcb)) | |
5527 | error ("GetCommState() failed"); | |
5528 | dcb.fBinary = TRUE; | |
5529 | dcb.fNull = FALSE; | |
5530 | dcb.fAbortOnError = FALSE; | |
5531 | /* dcb.XonLim and dcb.XoffLim are set by GetCommState() */ | |
5532 | dcb.ErrorChar = 0; | |
5533 | dcb.EofChar = 0; | |
5534 | dcb.EvtChar = 0; | |
5535 | ||
5536 | /* Configure speed. */ | |
5537 | if (!NILP (Fplist_member (contact, QCspeed))) | |
5538 | tem = Fplist_get (contact, QCspeed); | |
5539 | else | |
5540 | tem = Fplist_get (p->childp, QCspeed); | |
5541 | CHECK_NUMBER (tem); | |
5542 | dcb.BaudRate = XINT (tem); | |
5543 | childp2 = Fplist_put (childp2, QCspeed, tem); | |
5544 | ||
5545 | /* Configure bytesize. */ | |
5546 | if (!NILP (Fplist_member (contact, QCbytesize))) | |
5547 | tem = Fplist_get (contact, QCbytesize); | |
5548 | else | |
5549 | tem = Fplist_get (p->childp, QCbytesize); | |
5550 | if (NILP (tem)) | |
5551 | tem = make_number (8); | |
5552 | CHECK_NUMBER (tem); | |
5553 | if (XINT (tem) != 7 && XINT (tem) != 8) | |
5554 | error (":bytesize must be nil (8), 7, or 8"); | |
5555 | dcb.ByteSize = XINT (tem); | |
5556 | summary[0] = XINT (tem) + '0'; | |
5557 | childp2 = Fplist_put (childp2, QCbytesize, tem); | |
5558 | ||
5559 | /* Configure parity. */ | |
5560 | if (!NILP (Fplist_member (contact, QCparity))) | |
5561 | tem = Fplist_get (contact, QCparity); | |
5562 | else | |
5563 | tem = Fplist_get (p->childp, QCparity); | |
5564 | if (!NILP (tem) && !EQ (tem, Qeven) && !EQ (tem, Qodd)) | |
5565 | error (":parity must be nil (no parity), `even', or `odd'"); | |
5566 | dcb.fParity = FALSE; | |
5567 | dcb.Parity = NOPARITY; | |
5568 | dcb.fErrorChar = FALSE; | |
5569 | if (NILP (tem)) | |
5570 | { | |
5571 | summary[1] = 'N'; | |
5572 | } | |
5573 | else if (EQ (tem, Qeven)) | |
5574 | { | |
5575 | summary[1] = 'E'; | |
5576 | dcb.fParity = TRUE; | |
5577 | dcb.Parity = EVENPARITY; | |
5578 | dcb.fErrorChar = TRUE; | |
5579 | } | |
5580 | else if (EQ (tem, Qodd)) | |
5581 | { | |
5582 | summary[1] = 'O'; | |
5583 | dcb.fParity = TRUE; | |
5584 | dcb.Parity = ODDPARITY; | |
5585 | dcb.fErrorChar = TRUE; | |
5586 | } | |
5587 | childp2 = Fplist_put (childp2, QCparity, tem); | |
5588 | ||
5589 | /* Configure stopbits. */ | |
5590 | if (!NILP (Fplist_member (contact, QCstopbits))) | |
5591 | tem = Fplist_get (contact, QCstopbits); | |
5592 | else | |
5593 | tem = Fplist_get (p->childp, QCstopbits); | |
5594 | if (NILP (tem)) | |
5595 | tem = make_number (1); | |
5596 | CHECK_NUMBER (tem); | |
5597 | if (XINT (tem) != 1 && XINT (tem) != 2) | |
5598 | error (":stopbits must be nil (1 stopbit), 1, or 2"); | |
5599 | summary[2] = XINT (tem) + '0'; | |
5600 | if (XINT (tem) == 1) | |
5601 | dcb.StopBits = ONESTOPBIT; | |
5602 | else if (XINT (tem) == 2) | |
5603 | dcb.StopBits = TWOSTOPBITS; | |
5604 | childp2 = Fplist_put (childp2, QCstopbits, tem); | |
5605 | ||
5606 | /* Configure flowcontrol. */ | |
5607 | if (!NILP (Fplist_member (contact, QCflowcontrol))) | |
5608 | tem = Fplist_get (contact, QCflowcontrol); | |
5609 | else | |
5610 | tem = Fplist_get (p->childp, QCflowcontrol); | |
5611 | if (!NILP (tem) && !EQ (tem, Qhw) && !EQ (tem, Qsw)) | |
5612 | error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'"); | |
5613 | dcb.fOutxCtsFlow = FALSE; | |
5614 | dcb.fOutxDsrFlow = FALSE; | |
5615 | dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
5616 | dcb.fDsrSensitivity = FALSE; | |
5617 | dcb.fTXContinueOnXoff = FALSE; | |
5618 | dcb.fOutX = FALSE; | |
5619 | dcb.fInX = FALSE; | |
5620 | dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
5621 | dcb.XonChar = 17; /* Control-Q */ | |
5622 | dcb.XoffChar = 19; /* Control-S */ | |
5623 | if (NILP (tem)) | |
5624 | { | |
5625 | /* Already configured. */ | |
5626 | } | |
5627 | else if (EQ (tem, Qhw)) | |
5628 | { | |
5629 | dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
5630 | dcb.fOutxCtsFlow = TRUE; | |
5631 | } | |
5632 | else if (EQ (tem, Qsw)) | |
5633 | { | |
5634 | dcb.fOutX = TRUE; | |
5635 | dcb.fInX = TRUE; | |
5636 | } | |
5637 | childp2 = Fplist_put (childp2, QCflowcontrol, tem); | |
5638 | ||
5639 | /* Activate configuration. */ | |
5640 | if (!SetCommState (hnd, &dcb)) | |
5641 | error ("SetCommState() failed"); | |
5642 | ||
5643 | childp2 = Fplist_put (childp2, QCsummary, build_string (summary)); | |
5644 | p->childp = childp2; | |
5645 | } | |
5646 | ||
aa5ee2a3 | 5647 | /* end of w32.c */ |
ab5796a9 MB |
5648 | |
5649 | /* arch-tag: 90442dd3-37be-482b-b272-ac752e3049f1 | |
5650 | (do not change this comment) */ |