]>
Commit | Line | Data |
---|---|---|
f4626df5 | 1 | #include "../git-compat-util.h" |
444dc903 | 2 | #include "win32.h" |
28a559c0 | 3 | #include <conio.h> |
85faec9d | 4 | #include <wchar.h> |
7e5d7768 | 5 | #include "../strbuf.h" |
c9b78400 | 6 | #include "../run-command.h" |
7eb2619c | 7 | #include "../cache.h" |
564be791 | 8 | #include "win32/lazyload.h" |
bdfbb0ea | 9 | #include "../config.h" |
9e9da23c | 10 | #include "dir.h" |
f4626df5 | 11 | |
7c00bc39 JS |
12 | #define HCAST(type, handle) ((type)(intptr_t)handle) |
13 | ||
19e12549 HV |
14 | static const int delay[] = { 0, 1, 10, 20, 40 }; |
15 | ||
44626dc7 | 16 | int err_win_to_posix(DWORD winerr) |
b3debd2b PK |
17 | { |
18 | int error = ENOSYS; | |
19 | switch(winerr) { | |
20 | case ERROR_ACCESS_DENIED: error = EACCES; break; | |
21 | case ERROR_ACCOUNT_DISABLED: error = EACCES; break; | |
22 | case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break; | |
23 | case ERROR_ALREADY_ASSIGNED: error = EBUSY; break; | |
24 | case ERROR_ALREADY_EXISTS: error = EEXIST; break; | |
25 | case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break; | |
26 | case ERROR_BAD_COMMAND: error = EIO; break; | |
27 | case ERROR_BAD_DEVICE: error = ENODEV; break; | |
28 | case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break; | |
29 | case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break; | |
30 | case ERROR_BAD_FORMAT: error = ENOEXEC; break; | |
31 | case ERROR_BAD_LENGTH: error = EINVAL; break; | |
32 | case ERROR_BAD_PATHNAME: error = ENOENT; break; | |
33 | case ERROR_BAD_PIPE: error = EPIPE; break; | |
34 | case ERROR_BAD_UNIT: error = ENODEV; break; | |
35 | case ERROR_BAD_USERNAME: error = EINVAL; break; | |
36 | case ERROR_BROKEN_PIPE: error = EPIPE; break; | |
37 | case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break; | |
38 | case ERROR_BUSY: error = EBUSY; break; | |
39 | case ERROR_BUSY_DRIVE: error = EBUSY; break; | |
40 | case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break; | |
41 | case ERROR_CANNOT_MAKE: error = EACCES; break; | |
42 | case ERROR_CANTOPEN: error = EIO; break; | |
43 | case ERROR_CANTREAD: error = EIO; break; | |
44 | case ERROR_CANTWRITE: error = EIO; break; | |
45 | case ERROR_CRC: error = EIO; break; | |
46 | case ERROR_CURRENT_DIRECTORY: error = EACCES; break; | |
47 | case ERROR_DEVICE_IN_USE: error = EBUSY; break; | |
48 | case ERROR_DEV_NOT_EXIST: error = ENODEV; break; | |
49 | case ERROR_DIRECTORY: error = EINVAL; break; | |
50 | case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break; | |
51 | case ERROR_DISK_CHANGE: error = EIO; break; | |
52 | case ERROR_DISK_FULL: error = ENOSPC; break; | |
53 | case ERROR_DRIVE_LOCKED: error = EBUSY; break; | |
54 | case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break; | |
55 | case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break; | |
56 | case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break; | |
57 | case ERROR_FILE_EXISTS: error = EEXIST; break; | |
58 | case ERROR_FILE_INVALID: error = ENODEV; break; | |
59 | case ERROR_FILE_NOT_FOUND: error = ENOENT; break; | |
60 | case ERROR_GEN_FAILURE: error = EIO; break; | |
61 | case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break; | |
62 | case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break; | |
63 | case ERROR_INVALID_ACCESS: error = EACCES; break; | |
64 | case ERROR_INVALID_ADDRESS: error = EFAULT; break; | |
65 | case ERROR_INVALID_BLOCK: error = EFAULT; break; | |
66 | case ERROR_INVALID_DATA: error = EINVAL; break; | |
67 | case ERROR_INVALID_DRIVE: error = ENODEV; break; | |
68 | case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break; | |
69 | case ERROR_INVALID_FLAGS: error = EINVAL; break; | |
70 | case ERROR_INVALID_FUNCTION: error = ENOSYS; break; | |
71 | case ERROR_INVALID_HANDLE: error = EBADF; break; | |
72 | case ERROR_INVALID_LOGON_HOURS: error = EACCES; break; | |
73 | case ERROR_INVALID_NAME: error = EINVAL; break; | |
74 | case ERROR_INVALID_OWNER: error = EINVAL; break; | |
75 | case ERROR_INVALID_PARAMETER: error = EINVAL; break; | |
76 | case ERROR_INVALID_PASSWORD: error = EPERM; break; | |
77 | case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break; | |
78 | case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break; | |
79 | case ERROR_INVALID_TARGET_HANDLE: error = EIO; break; | |
80 | case ERROR_INVALID_WORKSTATION: error = EACCES; break; | |
81 | case ERROR_IO_DEVICE: error = EIO; break; | |
82 | case ERROR_IO_INCOMPLETE: error = EINTR; break; | |
83 | case ERROR_LOCKED: error = EBUSY; break; | |
84 | case ERROR_LOCK_VIOLATION: error = EACCES; break; | |
85 | case ERROR_LOGON_FAILURE: error = EACCES; break; | |
86 | case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break; | |
87 | case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break; | |
88 | case ERROR_MORE_DATA: error = EPIPE; break; | |
89 | case ERROR_NEGATIVE_SEEK: error = ESPIPE; break; | |
90 | case ERROR_NOACCESS: error = EFAULT; break; | |
91 | case ERROR_NONE_MAPPED: error = EINVAL; break; | |
92 | case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break; | |
93 | case ERROR_NOT_READY: error = EAGAIN; break; | |
94 | case ERROR_NOT_SAME_DEVICE: error = EXDEV; break; | |
95 | case ERROR_NO_DATA: error = EPIPE; break; | |
96 | case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break; | |
97 | case ERROR_NO_PROC_SLOTS: error = EAGAIN; break; | |
98 | case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break; | |
99 | case ERROR_OPEN_FAILED: error = EIO; break; | |
100 | case ERROR_OPEN_FILES: error = EBUSY; break; | |
101 | case ERROR_OPERATION_ABORTED: error = EINTR; break; | |
102 | case ERROR_OUTOFMEMORY: error = ENOMEM; break; | |
103 | case ERROR_PASSWORD_EXPIRED: error = EACCES; break; | |
104 | case ERROR_PATH_BUSY: error = EBUSY; break; | |
105 | case ERROR_PATH_NOT_FOUND: error = ENOENT; break; | |
106 | case ERROR_PIPE_BUSY: error = EBUSY; break; | |
107 | case ERROR_PIPE_CONNECTED: error = EPIPE; break; | |
108 | case ERROR_PIPE_LISTENING: error = EPIPE; break; | |
109 | case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break; | |
110 | case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break; | |
111 | case ERROR_READ_FAULT: error = EIO; break; | |
112 | case ERROR_SEEK: error = EIO; break; | |
113 | case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break; | |
114 | case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break; | |
115 | case ERROR_SHARING_VIOLATION: error = EACCES; break; | |
116 | case ERROR_STACK_OVERFLOW: error = ENOMEM; break; | |
117 | case ERROR_SWAPERROR: error = ENOENT; break; | |
118 | case ERROR_TOO_MANY_MODULES: error = EMFILE; break; | |
119 | case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break; | |
120 | case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break; | |
121 | case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break; | |
122 | case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break; | |
123 | case ERROR_WRITE_FAULT: error = EIO; break; | |
124 | case ERROR_WRITE_PROTECT: error = EROFS; break; | |
125 | } | |
126 | return error; | |
127 | } | |
128 | ||
19e12549 HV |
129 | static inline int is_file_in_use_error(DWORD errcode) |
130 | { | |
131 | switch (errcode) { | |
132 | case ERROR_SHARING_VIOLATION: | |
133 | case ERROR_ACCESS_DENIED: | |
134 | return 1; | |
135 | } | |
136 | ||
137 | return 0; | |
138 | } | |
139 | ||
c9b78400 HV |
140 | static int read_yes_no_answer(void) |
141 | { | |
142 | char answer[1024]; | |
143 | ||
144 | if (fgets(answer, sizeof(answer), stdin)) { | |
145 | size_t answer_len = strlen(answer); | |
146 | int got_full_line = 0, c; | |
147 | ||
148 | /* remove the newline */ | |
149 | if (answer_len >= 2 && answer[answer_len-2] == '\r') { | |
150 | answer[answer_len-2] = '\0'; | |
151 | got_full_line = 1; | |
152 | } else if (answer_len >= 1 && answer[answer_len-1] == '\n') { | |
153 | answer[answer_len-1] = '\0'; | |
154 | got_full_line = 1; | |
155 | } | |
156 | /* flush the buffer in case we did not get the full line */ | |
157 | if (!got_full_line) | |
158 | while ((c = getchar()) != EOF && c != '\n') | |
159 | ; | |
160 | } else | |
161 | /* we could not read, return the | |
162 | * default answer which is no */ | |
163 | return 0; | |
164 | ||
165 | if (tolower(answer[0]) == 'y' && !answer[1]) | |
166 | return 1; | |
167 | if (!strncasecmp(answer, "yes", sizeof(answer))) | |
168 | return 1; | |
169 | if (tolower(answer[0]) == 'n' && !answer[1]) | |
170 | return 0; | |
171 | if (!strncasecmp(answer, "no", sizeof(answer))) | |
172 | return 0; | |
173 | ||
174 | /* did not find an answer we understand */ | |
175 | return -1; | |
176 | } | |
177 | ||
178 | static int ask_yes_no_if_possible(const char *format, ...) | |
179 | { | |
180 | char question[4096]; | |
181 | const char *retry_hook[] = { NULL, NULL, NULL }; | |
182 | va_list args; | |
183 | ||
184 | va_start(args, format); | |
185 | vsnprintf(question, sizeof(question), format, args); | |
186 | va_end(args); | |
187 | ||
06bc4b79 | 188 | if ((retry_hook[0] = mingw_getenv("GIT_ASK_YESNO"))) { |
c9b78400 HV |
189 | retry_hook[1] = question; |
190 | return !run_command_v_opt(retry_hook, 0); | |
191 | } | |
192 | ||
193 | if (!isatty(_fileno(stdin)) || !isatty(_fileno(stderr))) | |
194 | return 0; | |
195 | ||
196 | while (1) { | |
197 | int answer; | |
198 | fprintf(stderr, "%s (y/n) ", question); | |
199 | ||
200 | if ((answer = read_yes_no_answer()) >= 0) | |
201 | return answer; | |
202 | ||
203 | fprintf(stderr, "Sorry, I did not understand your answer. " | |
204 | "Please type 'y' or 'n'\n"); | |
205 | } | |
206 | } | |
207 | ||
bdfbb0ea JS |
208 | /* Windows only */ |
209 | enum hide_dotfiles_type { | |
210 | HIDE_DOTFILES_FALSE = 0, | |
211 | HIDE_DOTFILES_TRUE, | |
212 | HIDE_DOTFILES_DOTGITONLY | |
213 | }; | |
214 | ||
215 | static enum hide_dotfiles_type hide_dotfiles = HIDE_DOTFILES_DOTGITONLY; | |
0e218f91 | 216 | static char *unset_environment_variables; |
bdfbb0ea | 217 | |
70fc5793 JS |
218 | int mingw_core_config(const char *var, const char *value, void *cb) |
219 | { | |
bdfbb0ea JS |
220 | if (!strcmp(var, "core.hidedotfiles")) { |
221 | if (value && !strcasecmp(value, "dotgitonly")) | |
222 | hide_dotfiles = HIDE_DOTFILES_DOTGITONLY; | |
223 | else | |
224 | hide_dotfiles = git_config_bool(var, value); | |
225 | return 0; | |
226 | } | |
227 | ||
0e218f91 JS |
228 | if (!strcmp(var, "core.unsetenvvars")) { |
229 | free(unset_environment_variables); | |
230 | unset_environment_variables = xstrdup(value); | |
231 | return 0; | |
232 | } | |
233 | ||
70fc5793 JS |
234 | return 0; |
235 | } | |
236 | ||
4745feeb AS |
237 | /* Normalizes NT paths as returned by some low-level APIs. */ |
238 | static wchar_t *normalize_ntpath(wchar_t *wbuf) | |
239 | { | |
240 | int i; | |
241 | /* fix absolute path prefixes */ | |
242 | if (wbuf[0] == '\\') { | |
243 | /* strip NT namespace prefixes */ | |
244 | if (!wcsncmp(wbuf, L"\\??\\", 4) || | |
245 | !wcsncmp(wbuf, L"\\\\?\\", 4)) | |
246 | wbuf += 4; | |
247 | else if (!wcsnicmp(wbuf, L"\\DosDevices\\", 12)) | |
248 | wbuf += 12; | |
249 | /* replace remaining '...UNC\' with '\\' */ | |
250 | if (!wcsnicmp(wbuf, L"UNC\\", 4)) { | |
251 | wbuf += 2; | |
252 | *wbuf = '\\'; | |
253 | } | |
254 | } | |
255 | /* convert backslashes to slashes */ | |
256 | for (i = 0; wbuf[i]; i++) | |
257 | if (wbuf[i] == '\\') | |
258 | wbuf[i] = '/'; | |
259 | return wbuf; | |
260 | } | |
261 | ||
337967fb HV |
262 | int mingw_unlink(const char *pathname) |
263 | { | |
19e12549 | 264 | int ret, tries = 0; |
85faec9d KB |
265 | wchar_t wpathname[MAX_PATH]; |
266 | if (xutftowcs_path(wpathname, pathname) < 0) | |
267 | return -1; | |
19e12549 | 268 | |
337967fb | 269 | /* read-only files cannot be removed */ |
85faec9d KB |
270 | _wchmod(wpathname, 0666); |
271 | while ((ret = _wunlink(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) { | |
19e12549 HV |
272 | if (!is_file_in_use_error(GetLastError())) |
273 | break; | |
274 | /* | |
275 | * We assume that some other process had the source or | |
276 | * destination file open at the wrong moment and retry. | |
277 | * In order to give the other process a higher chance to | |
278 | * complete its operation, we give up our time slice now. | |
279 | * If we have to retry again, we do sleep a bit. | |
280 | */ | |
281 | Sleep(delay[tries]); | |
282 | tries++; | |
283 | } | |
c9b78400 HV |
284 | while (ret == -1 && is_file_in_use_error(GetLastError()) && |
285 | ask_yes_no_if_possible("Unlink of file '%s' failed. " | |
286 | "Should I try again?", pathname)) | |
85faec9d | 287 | ret = _wunlink(wpathname); |
19e12549 | 288 | return ret; |
337967fb HV |
289 | } |
290 | ||
85faec9d | 291 | static int is_dir_empty(const wchar_t *wpath) |
ab1a11be | 292 | { |
85faec9d | 293 | WIN32_FIND_DATAW findbuf; |
ab1a11be | 294 | HANDLE handle; |
85faec9d KB |
295 | wchar_t wbuf[MAX_PATH + 2]; |
296 | wcscpy(wbuf, wpath); | |
297 | wcscat(wbuf, L"\\*"); | |
298 | handle = FindFirstFileW(wbuf, &findbuf); | |
299 | if (handle == INVALID_HANDLE_VALUE) | |
ab1a11be | 300 | return GetLastError() == ERROR_NO_MORE_FILES; |
ab1a11be | 301 | |
85faec9d KB |
302 | while (!wcscmp(findbuf.cFileName, L".") || |
303 | !wcscmp(findbuf.cFileName, L"..")) | |
304 | if (!FindNextFileW(handle, &findbuf)) { | |
305 | DWORD err = GetLastError(); | |
306 | FindClose(handle); | |
307 | return err == ERROR_NO_MORE_FILES; | |
ab1a11be JS |
308 | } |
309 | FindClose(handle); | |
ab1a11be JS |
310 | return 0; |
311 | } | |
312 | ||
4f288100 HV |
313 | int mingw_rmdir(const char *pathname) |
314 | { | |
315 | int ret, tries = 0; | |
85faec9d KB |
316 | wchar_t wpathname[MAX_PATH]; |
317 | if (xutftowcs_path(wpathname, pathname) < 0) | |
318 | return -1; | |
4f288100 | 319 | |
85faec9d | 320 | while ((ret = _wrmdir(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) { |
4f288100 | 321 | if (!is_file_in_use_error(GetLastError())) |
a83b2b57 EFL |
322 | errno = err_win_to_posix(GetLastError()); |
323 | if (errno != EACCES) | |
4f288100 | 324 | break; |
85faec9d | 325 | if (!is_dir_empty(wpathname)) { |
ab1a11be JS |
326 | errno = ENOTEMPTY; |
327 | break; | |
328 | } | |
4f288100 HV |
329 | /* |
330 | * We assume that some other process had the source or | |
331 | * destination file open at the wrong moment and retry. | |
332 | * In order to give the other process a higher chance to | |
333 | * complete its operation, we give up our time slice now. | |
334 | * If we have to retry again, we do sleep a bit. | |
335 | */ | |
336 | Sleep(delay[tries]); | |
337 | tries++; | |
338 | } | |
a83b2b57 | 339 | while (ret == -1 && errno == EACCES && is_file_in_use_error(GetLastError()) && |
4f288100 HV |
340 | ask_yes_no_if_possible("Deletion of directory '%s' failed. " |
341 | "Should I try again?", pathname)) | |
85faec9d KB |
342 | ret = _wrmdir(wpathname); |
343 | return ret; | |
344 | } | |
345 | ||
f30afdab JS |
346 | static inline int needs_hiding(const char *path) |
347 | { | |
348 | const char *basename; | |
349 | ||
350 | if (hide_dotfiles == HIDE_DOTFILES_FALSE) | |
351 | return 0; | |
352 | ||
353 | /* We cannot use basename(), as it would remove trailing slashes */ | |
1cadad6f | 354 | win32_skip_dos_drive_prefix((char **)&path); |
f30afdab JS |
355 | if (!*path) |
356 | return 0; | |
357 | ||
358 | for (basename = path; *path; path++) | |
359 | if (is_dir_sep(*path)) { | |
360 | do { | |
361 | path++; | |
362 | } while (is_dir_sep(*path)); | |
363 | /* ignore trailing slashes */ | |
364 | if (*path) | |
365 | basename = path; | |
366 | } | |
367 | ||
368 | if (hide_dotfiles == HIDE_DOTFILES_TRUE) | |
369 | return *basename == '.'; | |
370 | ||
371 | assert(hide_dotfiles == HIDE_DOTFILES_DOTGITONLY); | |
372 | return !strncasecmp(".git", basename, 4) && | |
373 | (!basename[4] || is_dir_sep(basename[4])); | |
374 | } | |
375 | ||
376 | static int set_hidden_flag(const wchar_t *path, int set) | |
377 | { | |
378 | DWORD original = GetFileAttributesW(path), modified; | |
379 | if (set) | |
380 | modified = original | FILE_ATTRIBUTE_HIDDEN; | |
381 | else | |
382 | modified = original & ~FILE_ATTRIBUTE_HIDDEN; | |
383 | if (original == modified || SetFileAttributesW(path, modified)) | |
384 | return 0; | |
385 | errno = err_win_to_posix(GetLastError()); | |
386 | return -1; | |
387 | } | |
388 | ||
85faec9d KB |
389 | int mingw_mkdir(const char *path, int mode) |
390 | { | |
391 | int ret; | |
392 | wchar_t wpath[MAX_PATH]; | |
393 | if (xutftowcs_path(wpath, path) < 0) | |
394 | return -1; | |
395 | ret = _wmkdir(wpath); | |
f30afdab JS |
396 | if (!ret && needs_hiding(path)) |
397 | return set_hidden_flag(wpath, 1); | |
4f288100 HV |
398 | return ret; |
399 | } | |
400 | ||
eeaf7dda JH |
401 | /* |
402 | * Calling CreateFile() using FILE_APPEND_DATA and without FILE_WRITE_DATA | |
403 | * is documented in [1] as opening a writable file handle in append mode. | |
404 | * (It is believed that) this is atomic since it is maintained by the | |
405 | * kernel unlike the O_APPEND flag which is racily maintained by the CRT. | |
406 | * | |
407 | * [1] https://docs.microsoft.com/en-us/windows/desktop/fileio/file-access-rights-constants | |
408 | * | |
409 | * This trick does not appear to work for named pipes. Instead it creates | |
410 | * a named pipe client handle that cannot be written to. Callers should | |
411 | * just use the regular _wopen() for them. (And since client handle gets | |
412 | * bound to a unique server handle, it isn't really an issue.) | |
413 | */ | |
d6410975 JS |
414 | static int mingw_open_append(wchar_t const *wfilename, int oflags, ...) |
415 | { | |
416 | HANDLE handle; | |
417 | int fd; | |
418 | DWORD create = (oflags & O_CREAT) ? OPEN_ALWAYS : OPEN_EXISTING; | |
419 | ||
420 | /* only these flags are supported */ | |
421 | if ((oflags & ~O_CREAT) != (O_WRONLY | O_APPEND)) | |
422 | return errno = ENOSYS, -1; | |
423 | ||
424 | /* | |
425 | * FILE_SHARE_WRITE is required to permit child processes | |
426 | * to append to the file. | |
427 | */ | |
428 | handle = CreateFileW(wfilename, FILE_APPEND_DATA, | |
429 | FILE_SHARE_WRITE | FILE_SHARE_READ, | |
430 | NULL, create, FILE_ATTRIBUTE_NORMAL, NULL); | |
431 | if (handle == INVALID_HANDLE_VALUE) | |
432 | return errno = err_win_to_posix(GetLastError()), -1; | |
eeaf7dda | 433 | |
d6410975 JS |
434 | /* |
435 | * No O_APPEND here, because the CRT uses it only to reset the | |
eeaf7dda JH |
436 | * file pointer to EOF before each write(); but that is not |
437 | * necessary (and may lead to races) for a file created with | |
438 | * FILE_APPEND_DATA. | |
d6410975 JS |
439 | */ |
440 | fd = _open_osfhandle((intptr_t)handle, O_BINARY); | |
441 | if (fd < 0) | |
442 | CloseHandle(handle); | |
443 | return fd; | |
444 | } | |
445 | ||
eeaf7dda JH |
446 | /* |
447 | * Does the pathname map to the local named pipe filesystem? | |
448 | * That is, does it have a "//./pipe/" prefix? | |
449 | */ | |
450 | static int is_local_named_pipe_path(const char *filename) | |
451 | { | |
452 | return (is_dir_sep(filename[0]) && | |
453 | is_dir_sep(filename[1]) && | |
454 | filename[2] == '.' && | |
455 | is_dir_sep(filename[3]) && | |
456 | !strncasecmp(filename+4, "pipe", 4) && | |
457 | is_dir_sep(filename[8]) && | |
458 | filename[9]); | |
459 | } | |
460 | ||
3e4a1ba0 JS |
461 | int mingw_open (const char *filename, int oflags, ...) |
462 | { | |
d6410975 | 463 | typedef int (*open_fn_t)(wchar_t const *wfilename, int oflags, ...); |
3e4a1ba0 JS |
464 | va_list args; |
465 | unsigned mode; | |
0d30ad71 | 466 | int fd; |
85faec9d | 467 | wchar_t wfilename[MAX_PATH]; |
d6410975 | 468 | open_fn_t open_fn; |
0d30ad71 | 469 | |
3e4a1ba0 JS |
470 | va_start(args, oflags); |
471 | mode = va_arg(args, int); | |
472 | va_end(args); | |
473 | ||
1a404209 | 474 | if (filename && !strcmp(filename, "/dev/null")) |
3e4a1ba0 | 475 | filename = "nul"; |
0d30ad71 | 476 | |
eeaf7dda | 477 | if ((oflags & O_APPEND) && !is_local_named_pipe_path(filename)) |
d6410975 JS |
478 | open_fn = mingw_open_append; |
479 | else | |
480 | open_fn = _wopen; | |
481 | ||
85faec9d KB |
482 | if (xutftowcs_path(wfilename, filename) < 0) |
483 | return -1; | |
d6410975 | 484 | fd = open_fn(wfilename, oflags, mode); |
0d30ad71 | 485 | |
ba6fad02 | 486 | if (fd < 0 && (oflags & O_ACCMODE) != O_RDONLY && errno == EACCES) { |
85faec9d | 487 | DWORD attrs = GetFileAttributesW(wfilename); |
3e4a1ba0 JS |
488 | if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY)) |
489 | errno = EISDIR; | |
490 | } | |
f30afdab JS |
491 | if ((oflags & O_CREAT) && needs_hiding(filename)) { |
492 | /* | |
493 | * Internally, _wopen() uses the CreateFile() API which errors | |
494 | * out with an ERROR_ACCESS_DENIED if CREATE_ALWAYS was | |
495 | * specified and an already existing file's attributes do not | |
496 | * match *exactly*. As there is no mode or flag we can set that | |
497 | * would correspond to FILE_ATTRIBUTE_HIDDEN, let's just try | |
498 | * again *without* the O_CREAT flag (that corresponds to the | |
499 | * CREATE_ALWAYS flag of CreateFile()). | |
500 | */ | |
501 | if (fd < 0 && errno == EACCES) | |
d6410975 | 502 | fd = open_fn(wfilename, oflags & ~O_CREAT, mode); |
f30afdab JS |
503 | if (fd >= 0 && set_hidden_flag(wfilename, 1)) |
504 | warning("could not mark '%s' as hidden.", filename); | |
505 | } | |
3e4a1ba0 JS |
506 | return fd; |
507 | } | |
508 | ||
176478a8 EFL |
509 | static BOOL WINAPI ctrl_ignore(DWORD type) |
510 | { | |
511 | return TRUE; | |
512 | } | |
513 | ||
514 | #undef fgetc | |
515 | int mingw_fgetc(FILE *stream) | |
516 | { | |
517 | int ch; | |
518 | if (!isatty(_fileno(stream))) | |
519 | return fgetc(stream); | |
520 | ||
521 | SetConsoleCtrlHandler(ctrl_ignore, TRUE); | |
522 | while (1) { | |
523 | ch = fgetc(stream); | |
524 | if (ch != EOF || GetLastError() != ERROR_OPERATION_ABORTED) | |
525 | break; | |
526 | ||
527 | /* Ctrl+C was pressed, simulate SIGINT and retry */ | |
528 | mingw_raise(SIGINT); | |
529 | } | |
530 | SetConsoleCtrlHandler(ctrl_ignore, FALSE); | |
531 | return ch; | |
532 | } | |
533 | ||
3fdcdbdf JS |
534 | #undef fopen |
535 | FILE *mingw_fopen (const char *filename, const char *otype) | |
536 | { | |
f30afdab | 537 | int hide = needs_hiding(filename); |
85faec9d KB |
538 | FILE *file; |
539 | wchar_t wfilename[MAX_PATH], wotype[4]; | |
1a404209 | 540 | if (filename && !strcmp(filename, "/dev/null")) |
3fdcdbdf | 541 | filename = "nul"; |
85faec9d KB |
542 | if (xutftowcs_path(wfilename, filename) < 0 || |
543 | xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0) | |
544 | return NULL; | |
f30afdab JS |
545 | if (hide && !access(filename, F_OK) && set_hidden_flag(wfilename, 0)) { |
546 | error("could not unhide %s", filename); | |
547 | return NULL; | |
548 | } | |
85faec9d | 549 | file = _wfopen(wfilename, wotype); |
e5b31344 JS |
550 | if (!file && GetLastError() == ERROR_INVALID_NAME) |
551 | errno = ENOENT; | |
f30afdab JS |
552 | if (file && hide && set_hidden_flag(wfilename, 1)) |
553 | warning("could not mark '%s' as hidden.", filename); | |
85faec9d | 554 | return file; |
3fdcdbdf JS |
555 | } |
556 | ||
3fdcdbdf JS |
557 | FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream) |
558 | { | |
f30afdab | 559 | int hide = needs_hiding(filename); |
85faec9d KB |
560 | FILE *file; |
561 | wchar_t wfilename[MAX_PATH], wotype[4]; | |
3fdcdbdf JS |
562 | if (filename && !strcmp(filename, "/dev/null")) |
563 | filename = "nul"; | |
85faec9d KB |
564 | if (xutftowcs_path(wfilename, filename) < 0 || |
565 | xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0) | |
566 | return NULL; | |
f30afdab JS |
567 | if (hide && !access(filename, F_OK) && set_hidden_flag(wfilename, 0)) { |
568 | error("could not unhide %s", filename); | |
569 | return NULL; | |
570 | } | |
85faec9d | 571 | file = _wfreopen(wfilename, wotype, stream); |
f30afdab JS |
572 | if (file && hide && set_hidden_flag(wfilename, 1)) |
573 | warning("could not mark '%s' as hidden.", filename); | |
85faec9d | 574 | return file; |
3fdcdbdf JS |
575 | } |
576 | ||
84adb641 JS |
577 | #undef fflush |
578 | int mingw_fflush(FILE *stream) | |
579 | { | |
580 | int ret = fflush(stream); | |
581 | ||
582 | /* | |
583 | * write() is used behind the scenes of stdio output functions. | |
584 | * Since git code does not check for errors after each stdio write | |
585 | * operation, it can happen that write() is called by a later | |
586 | * stdio function even if an earlier write() call failed. In the | |
587 | * case of a pipe whose readable end was closed, only the first | |
588 | * call to write() reports EPIPE on Windows. Subsequent write() | |
589 | * calls report EINVAL. It is impossible to notice whether this | |
590 | * fflush invocation triggered such a case, therefore, we have to | |
591 | * catch all EINVAL errors whole-sale. | |
592 | */ | |
593 | if (ret && errno == EINVAL) | |
594 | errno = EPIPE; | |
595 | ||
596 | return ret; | |
597 | } | |
598 | ||
2b86292e JS |
599 | #undef write |
600 | ssize_t mingw_write(int fd, const void *buf, size_t len) | |
601 | { | |
602 | ssize_t result = write(fd, buf, len); | |
603 | ||
604 | if (result < 0 && errno == EINVAL && buf) { | |
605 | /* check if fd is a pipe */ | |
606 | HANDLE h = (HANDLE) _get_osfhandle(fd); | |
607 | if (GetFileType(h) == FILE_TYPE_PIPE) | |
608 | errno = EPIPE; | |
609 | else | |
610 | errno = EINVAL; | |
611 | } | |
612 | ||
613 | return result; | |
614 | } | |
615 | ||
85faec9d KB |
616 | int mingw_access(const char *filename, int mode) |
617 | { | |
618 | wchar_t wfilename[MAX_PATH]; | |
619 | if (xutftowcs_path(wfilename, filename) < 0) | |
620 | return -1; | |
621 | /* X_OK is not supported by the MSVCRT version */ | |
622 | return _waccess(wfilename, mode & ~X_OK); | |
623 | } | |
624 | ||
625 | int mingw_chdir(const char *dirname) | |
626 | { | |
627 | wchar_t wdirname[MAX_PATH]; | |
628 | if (xutftowcs_path(wdirname, dirname) < 0) | |
629 | return -1; | |
630 | return _wchdir(wdirname); | |
631 | } | |
632 | ||
633 | int mingw_chmod(const char *filename, int mode) | |
634 | { | |
635 | wchar_t wfilename[MAX_PATH]; | |
636 | if (xutftowcs_path(wfilename, filename) < 0) | |
637 | return -1; | |
638 | return _wchmod(wfilename, mode); | |
639 | } | |
640 | ||
a6d15bc3 JS |
641 | /* |
642 | * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC. | |
643 | * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch. | |
644 | */ | |
645 | static inline long long filetime_to_hnsec(const FILETIME *ft) | |
5411bdc4 MSO |
646 | { |
647 | long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime; | |
a6d15bc3 JS |
648 | /* Windows to Unix Epoch conversion */ |
649 | return winTime - 116444736000000000LL; | |
650 | } | |
651 | ||
d7e8c874 | 652 | static inline void filetime_to_timespec(const FILETIME *ft, struct timespec *ts) |
a6d15bc3 | 653 | { |
d7e8c874 KB |
654 | long long hnsec = filetime_to_hnsec(ft); |
655 | ts->tv_sec = (time_t)(hnsec / 10000000); | |
656 | ts->tv_nsec = (hnsec % 10000000) * 100; | |
5411bdc4 MSO |
657 | } |
658 | ||
4b0abd5c JS |
659 | /** |
660 | * Verifies that safe_create_leading_directories() would succeed. | |
661 | */ | |
662 | static int has_valid_directory_prefix(wchar_t *wfilename) | |
663 | { | |
664 | int n = wcslen(wfilename); | |
665 | ||
666 | while (n > 0) { | |
667 | wchar_t c = wfilename[--n]; | |
668 | DWORD attributes; | |
669 | ||
670 | if (!is_dir_sep(c)) | |
671 | continue; | |
672 | ||
673 | wfilename[n] = L'\0'; | |
674 | attributes = GetFileAttributesW(wfilename); | |
675 | wfilename[n] = c; | |
676 | if (attributes == FILE_ATTRIBUTE_DIRECTORY || | |
677 | attributes == FILE_ATTRIBUTE_DEVICE) | |
678 | return 1; | |
679 | if (attributes == INVALID_FILE_ATTRIBUTES) | |
680 | switch (GetLastError()) { | |
681 | case ERROR_PATH_NOT_FOUND: | |
682 | continue; | |
683 | case ERROR_FILE_NOT_FOUND: | |
684 | /* This implies parent directory exists. */ | |
685 | return 1; | |
686 | } | |
687 | return 0; | |
688 | } | |
689 | return 1; | |
690 | } | |
691 | ||
5411bdc4 MSO |
692 | /* We keep the do_lstat code in a separate function to avoid recursion. |
693 | * When a path ends with a slash, the stat will fail with ENOENT. In | |
694 | * this case, we strip the trailing slashes and stat again. | |
9b9784ca PT |
695 | * |
696 | * If follow is true then act like stat() and report on the link | |
697 | * target. Otherwise report on the link itself. | |
5411bdc4 | 698 | */ |
9b9784ca | 699 | static int do_lstat(int follow, const char *file_name, struct stat *buf) |
5411bdc4 MSO |
700 | { |
701 | WIN32_FILE_ATTRIBUTE_DATA fdata; | |
85faec9d KB |
702 | wchar_t wfilename[MAX_PATH]; |
703 | if (xutftowcs_path(wfilename, file_name) < 0) | |
704 | return -1; | |
5411bdc4 | 705 | |
85faec9d | 706 | if (GetFileAttributesExW(wfilename, GetFileExInfoStandard, &fdata)) { |
5411bdc4 MSO |
707 | buf->st_ino = 0; |
708 | buf->st_gid = 0; | |
709 | buf->st_uid = 0; | |
180964f0 | 710 | buf->st_nlink = 1; |
444dc903 | 711 | buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes); |
1d4e4cd4 JS |
712 | buf->st_size = fdata.nFileSizeLow | |
713 | (((off_t)fdata.nFileSizeHigh)<<32); | |
8252df62 | 714 | buf->st_dev = buf->st_rdev = 0; /* not used by Git */ |
d7e8c874 KB |
715 | filetime_to_timespec(&(fdata.ftLastAccessTime), &(buf->st_atim)); |
716 | filetime_to_timespec(&(fdata.ftLastWriteTime), &(buf->st_mtim)); | |
717 | filetime_to_timespec(&(fdata.ftCreationTime), &(buf->st_ctim)); | |
9b9784ca | 718 | if (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) { |
85faec9d KB |
719 | WIN32_FIND_DATAW findbuf; |
720 | HANDLE handle = FindFirstFileW(wfilename, &findbuf); | |
9b9784ca PT |
721 | if (handle != INVALID_HANDLE_VALUE) { |
722 | if ((findbuf.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) && | |
723 | (findbuf.dwReserved0 == IO_REPARSE_TAG_SYMLINK)) { | |
724 | if (follow) { | |
725 | char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE]; | |
726 | buf->st_size = readlink(file_name, buffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE); | |
727 | } else { | |
728 | buf->st_mode = S_IFLNK; | |
729 | } | |
730 | buf->st_mode |= S_IREAD; | |
731 | if (!(findbuf.dwFileAttributes & FILE_ATTRIBUTE_READONLY)) | |
732 | buf->st_mode |= S_IWRITE; | |
733 | } | |
734 | FindClose(handle); | |
735 | } | |
736 | } | |
5411bdc4 MSO |
737 | return 0; |
738 | } | |
85faec9d KB |
739 | switch (GetLastError()) { |
740 | case ERROR_ACCESS_DENIED: | |
741 | case ERROR_SHARING_VIOLATION: | |
742 | case ERROR_LOCK_VIOLATION: | |
743 | case ERROR_SHARING_BUFFER_EXCEEDED: | |
744 | errno = EACCES; | |
745 | break; | |
746 | case ERROR_BUFFER_OVERFLOW: | |
747 | errno = ENAMETOOLONG; | |
748 | break; | |
749 | case ERROR_NOT_ENOUGH_MEMORY: | |
750 | errno = ENOMEM; | |
751 | break; | |
4b0abd5c JS |
752 | case ERROR_PATH_NOT_FOUND: |
753 | if (!has_valid_directory_prefix(wfilename)) { | |
754 | errno = ENOTDIR; | |
755 | break; | |
756 | } | |
757 | /* fallthru */ | |
85faec9d KB |
758 | default: |
759 | errno = ENOENT; | |
760 | break; | |
761 | } | |
5411bdc4 MSO |
762 | return -1; |
763 | } | |
764 | ||
765 | /* We provide our own lstat/fstat functions, since the provided | |
766 | * lstat/fstat functions are so slow. These stat functions are | |
767 | * tailored for Git's usage (read: fast), and are not meant to be | |
768 | * complete. Note that Git stat()s are redirected to mingw_lstat() | |
769 | * too, since Windows doesn't really handle symlinks that well. | |
770 | */ | |
9b9784ca | 771 | static int do_stat_internal(int follow, const char *file_name, struct stat *buf) |
5411bdc4 MSO |
772 | { |
773 | int namelen; | |
58aa3d2a | 774 | char alt_name[PATH_MAX]; |
5411bdc4 | 775 | |
9b9784ca | 776 | if (!do_lstat(follow, file_name, buf)) |
5411bdc4 MSO |
777 | return 0; |
778 | ||
779 | /* if file_name ended in a '/', Windows returned ENOENT; | |
780 | * try again without trailing slashes | |
781 | */ | |
782 | if (errno != ENOENT) | |
783 | return -1; | |
784 | ||
785 | namelen = strlen(file_name); | |
786 | if (namelen && file_name[namelen-1] != '/') | |
787 | return -1; | |
788 | while (namelen && file_name[namelen-1] == '/') | |
789 | --namelen; | |
790 | if (!namelen || namelen >= PATH_MAX) | |
791 | return -1; | |
792 | ||
793 | memcpy(alt_name, file_name, namelen); | |
794 | alt_name[namelen] = 0; | |
9b9784ca PT |
795 | return do_lstat(follow, alt_name, buf); |
796 | } | |
797 | ||
7bf19838 JS |
798 | static int get_file_info_by_handle(HANDLE hnd, struct stat *buf) |
799 | { | |
800 | BY_HANDLE_FILE_INFORMATION fdata; | |
801 | ||
802 | if (!GetFileInformationByHandle(hnd, &fdata)) { | |
803 | errno = err_win_to_posix(GetLastError()); | |
804 | return -1; | |
805 | } | |
806 | ||
807 | buf->st_ino = 0; | |
808 | buf->st_gid = 0; | |
809 | buf->st_uid = 0; | |
810 | buf->st_nlink = 1; | |
811 | buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes); | |
812 | buf->st_size = fdata.nFileSizeLow | | |
813 | (((off_t)fdata.nFileSizeHigh)<<32); | |
814 | buf->st_dev = buf->st_rdev = 0; /* not used by Git */ | |
d7e8c874 KB |
815 | filetime_to_timespec(&(fdata.ftLastAccessTime), &(buf->st_atim)); |
816 | filetime_to_timespec(&(fdata.ftLastWriteTime), &(buf->st_mtim)); | |
817 | filetime_to_timespec(&(fdata.ftCreationTime), &(buf->st_ctim)); | |
7bf19838 JS |
818 | return 0; |
819 | } | |
820 | ||
9b9784ca PT |
821 | int mingw_lstat(const char *file_name, struct stat *buf) |
822 | { | |
823 | return do_stat_internal(0, file_name, buf); | |
824 | } | |
825 | int mingw_stat(const char *file_name, struct stat *buf) | |
826 | { | |
827 | return do_stat_internal(1, file_name, buf); | |
5411bdc4 MSO |
828 | } |
829 | ||
180964f0 | 830 | int mingw_fstat(int fd, struct stat *buf) |
5411bdc4 MSO |
831 | { |
832 | HANDLE fh = (HANDLE)_get_osfhandle(fd); | |
d75e6973 | 833 | DWORD avail, type = GetFileType(fh) & ~FILE_TYPE_REMOTE; |
5411bdc4 | 834 | |
d75e6973 KB |
835 | switch (type) { |
836 | case FILE_TYPE_DISK: | |
837 | return get_file_info_by_handle(fh, buf); | |
5411bdc4 | 838 | |
d75e6973 KB |
839 | case FILE_TYPE_CHAR: |
840 | case FILE_TYPE_PIPE: | |
841 | /* initialize stat fields */ | |
842 | memset(buf, 0, sizeof(*buf)); | |
180964f0 | 843 | buf->st_nlink = 1; |
d75e6973 KB |
844 | |
845 | if (type == FILE_TYPE_CHAR) { | |
846 | buf->st_mode = _S_IFCHR; | |
847 | } else { | |
848 | buf->st_mode = _S_IFIFO; | |
849 | if (PeekNamedPipe(fh, NULL, 0, NULL, &avail, NULL)) | |
850 | buf->st_size = avail; | |
851 | } | |
5411bdc4 | 852 | return 0; |
7bf19838 | 853 | |
d75e6973 KB |
854 | default: |
855 | errno = EBADF; | |
856 | return -1; | |
5411bdc4 | 857 | } |
5411bdc4 MSO |
858 | } |
859 | ||
7c0ffa1c JS |
860 | static inline void time_t_to_filetime(time_t t, FILETIME *ft) |
861 | { | |
862 | long long winTime = t * 10000000LL + 116444736000000000LL; | |
863 | ft->dwLowDateTime = winTime; | |
864 | ft->dwHighDateTime = winTime >> 32; | |
865 | } | |
866 | ||
867 | int mingw_utime (const char *file_name, const struct utimbuf *times) | |
868 | { | |
869 | FILETIME mft, aft; | |
870 | int fh, rc; | |
85faec9d KB |
871 | DWORD attrs; |
872 | wchar_t wfilename[MAX_PATH]; | |
873 | if (xutftowcs_path(wfilename, file_name) < 0) | |
874 | return -1; | |
7c0ffa1c JS |
875 | |
876 | /* must have write permission */ | |
85faec9d | 877 | attrs = GetFileAttributesW(wfilename); |
852f098c JS |
878 | if (attrs != INVALID_FILE_ATTRIBUTES && |
879 | (attrs & FILE_ATTRIBUTE_READONLY)) { | |
880 | /* ignore errors here; open() will report them */ | |
85faec9d | 881 | SetFileAttributesW(wfilename, attrs & ~FILE_ATTRIBUTE_READONLY); |
852f098c JS |
882 | } |
883 | ||
85faec9d | 884 | if ((fh = _wopen(wfilename, O_RDWR | O_BINARY)) < 0) { |
852f098c JS |
885 | rc = -1; |
886 | goto revert_attrs; | |
887 | } | |
7c0ffa1c | 888 | |
ded2d476 SG |
889 | if (times) { |
890 | time_t_to_filetime(times->modtime, &mft); | |
891 | time_t_to_filetime(times->actime, &aft); | |
892 | } else { | |
893 | GetSystemTimeAsFileTime(&mft); | |
894 | aft = mft; | |
895 | } | |
7c0ffa1c JS |
896 | if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) { |
897 | errno = EINVAL; | |
898 | rc = -1; | |
899 | } else | |
900 | rc = 0; | |
901 | close(fh); | |
852f098c JS |
902 | |
903 | revert_attrs: | |
904 | if (attrs != INVALID_FILE_ATTRIBUTES && | |
905 | (attrs & FILE_ATTRIBUTE_READONLY)) { | |
906 | /* ignore errors again */ | |
85faec9d | 907 | SetFileAttributesW(wfilename, attrs); |
852f098c | 908 | } |
7c0ffa1c JS |
909 | return rc; |
910 | } | |
911 | ||
9ee0540a JS |
912 | #undef strftime |
913 | size_t mingw_strftime(char *s, size_t max, | |
914 | const char *format, const struct tm *tm) | |
915 | { | |
916 | size_t ret = strftime(s, max, format, tm); | |
917 | ||
918 | if (!ret && errno == EINVAL) | |
919 | die("invalid strftime format: '%s'", format); | |
920 | return ret; | |
921 | } | |
922 | ||
f4626df5 JS |
923 | unsigned int sleep (unsigned int seconds) |
924 | { | |
925 | Sleep(seconds*1000); | |
926 | return 0; | |
927 | } | |
928 | ||
85faec9d KB |
929 | char *mingw_mktemp(char *template) |
930 | { | |
931 | wchar_t wtemplate[MAX_PATH]; | |
932 | if (xutftowcs_path(wtemplate, template) < 0) | |
933 | return NULL; | |
934 | if (!_wmktemp(wtemplate)) | |
935 | return NULL; | |
936 | if (xwcstoutf(template, wtemplate, strlen(template) + 1) < 0) | |
937 | return NULL; | |
938 | return template; | |
939 | } | |
940 | ||
f4626df5 JS |
941 | int mkstemp(char *template) |
942 | { | |
943 | char *filename = mktemp(template); | |
944 | if (filename == NULL) | |
945 | return -1; | |
946 | return open(filename, O_RDWR | O_CREAT, 0600); | |
947 | } | |
948 | ||
949 | int gettimeofday(struct timeval *tv, void *tz) | |
950 | { | |
a6d15bc3 JS |
951 | FILETIME ft; |
952 | long long hnsec; | |
953 | ||
954 | GetSystemTimeAsFileTime(&ft); | |
955 | hnsec = filetime_to_hnsec(&ft); | |
956 | tv->tv_sec = hnsec / 10000000; | |
957 | tv->tv_usec = (hnsec % 10000000) / 10; | |
a42a0c2e | 958 | return 0; |
f4626df5 JS |
959 | } |
960 | ||
897bb8cb JS |
961 | int pipe(int filedes[2]) |
962 | { | |
3e34d665 | 963 | HANDLE h[2]; |
897bb8cb | 964 | |
3e34d665 JS |
965 | /* this creates non-inheritable handles */ |
966 | if (!CreatePipe(&h[0], &h[1], NULL, 8192)) { | |
967 | errno = err_win_to_posix(GetLastError()); | |
897bb8cb JS |
968 | return -1; |
969 | } | |
7c00bc39 | 970 | filedes[0] = _open_osfhandle(HCAST(int, h[0]), O_NOINHERIT); |
3e34d665 | 971 | if (filedes[0] < 0) { |
897bb8cb JS |
972 | CloseHandle(h[0]); |
973 | CloseHandle(h[1]); | |
974 | return -1; | |
975 | } | |
7c00bc39 | 976 | filedes[1] = _open_osfhandle(HCAST(int, h[1]), O_NOINHERIT); |
c3cb7b6f | 977 | if (filedes[1] < 0) { |
897bb8cb | 978 | close(filedes[0]); |
897bb8cb JS |
979 | CloseHandle(h[1]); |
980 | return -1; | |
981 | } | |
897bb8cb JS |
982 | return 0; |
983 | } | |
984 | ||
f4626df5 JS |
985 | struct tm *gmtime_r(const time_t *timep, struct tm *result) |
986 | { | |
987 | /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */ | |
988 | memcpy(result, gmtime(timep), sizeof(struct tm)); | |
989 | return result; | |
990 | } | |
991 | ||
992 | struct tm *localtime_r(const time_t *timep, struct tm *result) | |
993 | { | |
994 | /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */ | |
995 | memcpy(result, localtime(timep), sizeof(struct tm)); | |
996 | return result; | |
997 | } | |
998 | ||
25fe217b JS |
999 | char *mingw_getcwd(char *pointer, int len) |
1000 | { | |
937974fc JS |
1001 | wchar_t cwd[MAX_PATH], wpointer[MAX_PATH]; |
1002 | DWORD ret = GetCurrentDirectoryW(ARRAY_SIZE(cwd), cwd); | |
1003 | ||
1004 | if (!ret || ret >= ARRAY_SIZE(cwd)) { | |
1005 | errno = ret ? ENAMETOOLONG : err_win_to_posix(GetLastError()); | |
1006 | return NULL; | |
1007 | } | |
1008 | ret = GetLongPathNameW(cwd, wpointer, ARRAY_SIZE(wpointer)); | |
4745feeb AS |
1009 | if (!ret && GetLastError() == ERROR_ACCESS_DENIED) { |
1010 | HANDLE hnd = CreateFileW(cwd, 0, | |
1011 | FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, | |
1012 | OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); | |
1013 | if (hnd == INVALID_HANDLE_VALUE) | |
1014 | return NULL; | |
1015 | ret = GetFinalPathNameByHandleW(hnd, wpointer, ARRAY_SIZE(wpointer), 0); | |
1016 | CloseHandle(hnd); | |
1017 | if (!ret || ret >= ARRAY_SIZE(wpointer)) | |
1018 | return NULL; | |
1019 | if (xwcstoutf(pointer, normalize_ntpath(wpointer), len) < 0) | |
1020 | return NULL; | |
1021 | return pointer; | |
1022 | } | |
937974fc | 1023 | if (!ret || ret >= ARRAY_SIZE(wpointer)) |
85faec9d KB |
1024 | return NULL; |
1025 | if (xwcstoutf(pointer, wpointer, len) < 0) | |
1026 | return NULL; | |
8e9b2080 | 1027 | convert_slashes(pointer); |
85faec9d | 1028 | return pointer; |
25fe217b JS |
1029 | } |
1030 | ||
7e5d7768 | 1031 | /* |
2ef2ae29 JS |
1032 | * See "Parsing C++ Command-Line Arguments" at Microsoft's Docs: |
1033 | * https://docs.microsoft.com/en-us/cpp/cpp/parsing-cpp-command-line-arguments | |
7e5d7768 | 1034 | */ |
9e9da23c | 1035 | static const char *quote_arg_msvc(const char *arg) |
7e5d7768 JS |
1036 | { |
1037 | /* count chars to quote */ | |
1038 | int len = 0, n = 0; | |
1039 | int force_quotes = 0; | |
1040 | char *q, *d; | |
1041 | const char *p = arg; | |
1042 | if (!*p) force_quotes = 1; | |
1043 | while (*p) { | |
3aea1a5a | 1044 | if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'') |
7e5d7768 JS |
1045 | force_quotes = 1; |
1046 | else if (*p == '"') | |
1047 | n++; | |
1048 | else if (*p == '\\') { | |
1049 | int count = 0; | |
1050 | while (*p == '\\') { | |
1051 | count++; | |
1052 | p++; | |
1053 | len++; | |
1054 | } | |
1055 | if (*p == '"') | |
1056 | n += count*2 + 1; | |
1057 | continue; | |
1058 | } | |
1059 | len++; | |
1060 | p++; | |
1061 | } | |
1062 | if (!force_quotes && n == 0) | |
1063 | return arg; | |
1064 | ||
1065 | /* insert \ where necessary */ | |
50a6c8ef | 1066 | d = q = xmalloc(st_add3(len, n, 3)); |
7e5d7768 JS |
1067 | *d++ = '"'; |
1068 | while (*arg) { | |
1069 | if (*arg == '"') | |
1070 | *d++ = '\\'; | |
1071 | else if (*arg == '\\') { | |
1072 | int count = 0; | |
1073 | while (*arg == '\\') { | |
1074 | count++; | |
1075 | *d++ = *arg++; | |
1076 | } | |
1077 | if (*arg == '"') { | |
1078 | while (count-- > 0) | |
1079 | *d++ = '\\'; | |
1080 | *d++ = '\\'; | |
1081 | } | |
1082 | } | |
1083 | *d++ = *arg++; | |
1084 | } | |
1085 | *d++ = '"'; | |
1086 | *d++ = 0; | |
1087 | return q; | |
1088 | } | |
1089 | ||
9e9da23c JS |
1090 | #include "quote.h" |
1091 | ||
1092 | static const char *quote_arg_msys2(const char *arg) | |
1093 | { | |
1094 | struct strbuf buf = STRBUF_INIT; | |
1095 | const char *p2 = arg, *p; | |
1096 | ||
1097 | for (p = arg; *p; p++) { | |
1098 | int ws = isspace(*p); | |
1099 | if (!ws && *p != '\\' && *p != '"' && *p != '{') | |
1100 | continue; | |
1101 | if (!buf.len) | |
1102 | strbuf_addch(&buf, '"'); | |
1103 | if (p != p2) | |
1104 | strbuf_add(&buf, p2, p - p2); | |
1105 | if (!ws && *p != '{') | |
1106 | strbuf_addch(&buf, '\\'); | |
1107 | p2 = p; | |
1108 | } | |
1109 | ||
1110 | if (p == arg) | |
1111 | strbuf_addch(&buf, '"'); | |
1112 | else if (!buf.len) | |
1113 | return arg; | |
1114 | else | |
1115 | strbuf_add(&buf, p2, p - p2), | |
1116 | ||
1117 | strbuf_addch(&buf, '"'); | |
1118 | return strbuf_detach(&buf, 0); | |
1119 | } | |
1120 | ||
f1a4dfb8 JS |
1121 | static const char *parse_interpreter(const char *cmd) |
1122 | { | |
1123 | static char buf[100]; | |
1124 | char *p, *opt; | |
1125 | int n, fd; | |
1126 | ||
1127 | /* don't even try a .exe */ | |
1128 | n = strlen(cmd); | |
1129 | if (n >= 4 && !strcasecmp(cmd+n-4, ".exe")) | |
1130 | return NULL; | |
1131 | ||
1132 | fd = open(cmd, O_RDONLY); | |
1133 | if (fd < 0) | |
1134 | return NULL; | |
1135 | n = read(fd, buf, sizeof(buf)-1); | |
1136 | close(fd); | |
1137 | if (n < 4) /* at least '#!/x' and not error */ | |
1138 | return NULL; | |
1139 | ||
1140 | if (buf[0] != '#' || buf[1] != '!') | |
1141 | return NULL; | |
1142 | buf[n] = '\0'; | |
bedc4279 PH |
1143 | p = buf + strcspn(buf, "\r\n"); |
1144 | if (!*p) | |
f1a4dfb8 JS |
1145 | return NULL; |
1146 | ||
1147 | *p = '\0'; | |
1148 | if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\'))) | |
1149 | return NULL; | |
1150 | /* strip options */ | |
1151 | if ((opt = strchr(p+1, ' '))) | |
1152 | *opt = '\0'; | |
1153 | return p+1; | |
1154 | } | |
1155 | ||
f1a4dfb8 JS |
1156 | /* |
1157 | * exe_only means that we only want to detect .exe files, but not scripts | |
1158 | * (which do not have an extension) | |
1159 | */ | |
e0ca1ca2 RS |
1160 | static char *lookup_prog(const char *dir, int dirlen, const char *cmd, |
1161 | int isexe, int exe_only) | |
f1a4dfb8 JS |
1162 | { |
1163 | char path[MAX_PATH]; | |
e0ca1ca2 | 1164 | snprintf(path, sizeof(path), "%.*s\\%s.exe", dirlen, dir, cmd); |
f1a4dfb8 JS |
1165 | |
1166 | if (!isexe && access(path, F_OK) == 0) | |
1167 | return xstrdup(path); | |
1168 | path[strlen(path)-4] = '\0'; | |
1169 | if ((!exe_only || isexe) && access(path, F_OK) == 0) | |
fe77b695 ER |
1170 | if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY)) |
1171 | return xstrdup(path); | |
f1a4dfb8 JS |
1172 | return NULL; |
1173 | } | |
1174 | ||
1175 | /* | |
22e5e58a | 1176 | * Determines the absolute path of cmd using the split path in path. |
f1a4dfb8 JS |
1177 | * If cmd contains a slash or backslash, no lookup is performed. |
1178 | */ | |
e0ca1ca2 | 1179 | static char *path_lookup(const char *cmd, int exe_only) |
f1a4dfb8 | 1180 | { |
e0ca1ca2 | 1181 | const char *path; |
f1a4dfb8 JS |
1182 | char *prog = NULL; |
1183 | int len = strlen(cmd); | |
1184 | int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe"); | |
1185 | ||
1186 | if (strchr(cmd, '/') || strchr(cmd, '\\')) | |
e0ca1ca2 RS |
1187 | return xstrdup(cmd); |
1188 | ||
1189 | path = mingw_getenv("PATH"); | |
1190 | if (!path) | |
1191 | return NULL; | |
f1a4dfb8 | 1192 | |
e0ca1ca2 RS |
1193 | while (!prog) { |
1194 | const char *sep = strchrnul(path, ';'); | |
1195 | int dirlen = sep - path; | |
1196 | if (dirlen) | |
1197 | prog = lookup_prog(path, dirlen, cmd, isexe, exe_only); | |
1198 | if (!*sep) | |
1199 | break; | |
1200 | path = sep + 1; | |
1201 | } | |
f1a4dfb8 JS |
1202 | |
1203 | return prog; | |
1204 | } | |
1205 | ||
fe21c6b2 JS |
1206 | static const wchar_t *wcschrnul(const wchar_t *s, wchar_t c) |
1207 | { | |
1208 | while (*s && *s != c) | |
1209 | s++; | |
1210 | return s; | |
1211 | } | |
1212 | ||
1213 | /* Compare only keys */ | |
1214 | static int wenvcmp(const void *a, const void *b) | |
1215 | { | |
1216 | wchar_t *p = *(wchar_t **)a, *q = *(wchar_t **)b; | |
1217 | size_t p_len, q_len; | |
1218 | ||
1219 | /* Find the keys */ | |
1220 | p_len = wcschrnul(p, L'=') - p; | |
1221 | q_len = wcschrnul(q, L'=') - q; | |
f279242d | 1222 | |
fe21c6b2 JS |
1223 | /* If the length differs, include the shorter key's NUL */ |
1224 | if (p_len < q_len) | |
1225 | p_len++; | |
1226 | else if (p_len > q_len) | |
1227 | p_len = q_len + 1; | |
1228 | ||
1229 | return _wcsnicmp(p, q, p_len); | |
1230 | } | |
f279242d | 1231 | |
fe21c6b2 JS |
1232 | /* We need a stable sort to convert the environment between UTF-16 <-> UTF-8 */ |
1233 | #ifndef INTERNAL_QSORT | |
1234 | #include "qsort.c" | |
1235 | #endif | |
77734da2 | 1236 | |
df0e998c | 1237 | /* |
fe21c6b2 JS |
1238 | * Build an environment block combining the inherited environment |
1239 | * merged with the given list of settings. | |
1240 | * | |
1241 | * Values of the form "KEY=VALUE" in deltaenv override inherited values. | |
1242 | * Values of the form "KEY" in deltaenv delete inherited values. | |
1243 | * | |
1244 | * Multiple entries in deltaenv for the same key are explicitly allowed. | |
1245 | * | |
1246 | * We return a contiguous block of UNICODE strings with a final trailing | |
1247 | * zero word. | |
df0e998c | 1248 | */ |
77734da2 | 1249 | static wchar_t *make_environment_block(char **deltaenv) |
7e5d7768 | 1250 | { |
fe21c6b2 JS |
1251 | wchar_t *wenv = GetEnvironmentStringsW(), *wdeltaenv, *result, *p; |
1252 | size_t wlen, s, delta_size, size; | |
df0e998c | 1253 | |
fe21c6b2 JS |
1254 | wchar_t **array = NULL; |
1255 | size_t alloc = 0, nr = 0, i; | |
df0e998c | 1256 | |
fe21c6b2 JS |
1257 | size = 1; /* for extra NUL at the end */ |
1258 | ||
1259 | /* If there is no deltaenv to apply, simply return a copy. */ | |
1260 | if (!deltaenv || !*deltaenv) { | |
1261 | for (p = wenv; p && *p; ) { | |
1262 | size_t s = wcslen(p) + 1; | |
1263 | size += s; | |
1264 | p += s; | |
1265 | } | |
77734da2 | 1266 | |
fe21c6b2 JS |
1267 | ALLOC_ARRAY(result, size); |
1268 | memcpy(result, wenv, size * sizeof(*wenv)); | |
1269 | FreeEnvironmentStringsW(wenv); | |
1270 | return result; | |
1271 | } | |
77734da2 | 1272 | |
fe21c6b2 JS |
1273 | /* |
1274 | * If there is a deltaenv, let's accumulate all keys into `array`, | |
1275 | * sort them using the stable git_qsort() and then copy, skipping | |
1276 | * duplicate keys | |
1277 | */ | |
1278 | for (p = wenv; p && *p; ) { | |
1279 | ALLOC_GROW(array, nr + 1, alloc); | |
1280 | s = wcslen(p) + 1; | |
1281 | array[nr++] = p; | |
1282 | p += s; | |
1283 | size += s; | |
df0e998c | 1284 | } |
fe21c6b2 JS |
1285 | |
1286 | /* (over-)assess size needed for wchar version of deltaenv */ | |
1287 | for (delta_size = 0, i = 0; deltaenv[i]; i++) | |
1288 | delta_size += strlen(deltaenv[i]) * 2 + 1; | |
1289 | ALLOC_ARRAY(wdeltaenv, delta_size); | |
1290 | ||
1291 | /* convert the deltaenv, appending to array */ | |
1292 | for (i = 0, p = wdeltaenv; deltaenv[i]; i++) { | |
1293 | ALLOC_GROW(array, nr + 1, alloc); | |
1294 | wlen = xutftowcs(p, deltaenv[i], wdeltaenv + delta_size - p); | |
1295 | array[nr++] = p; | |
1296 | p += wlen + 1; | |
1297 | } | |
df0e998c | 1298 | |
fe21c6b2 JS |
1299 | git_qsort(array, nr, sizeof(*array), wenvcmp); |
1300 | ALLOC_ARRAY(result, size + delta_size); | |
df0e998c | 1301 | |
fe21c6b2 JS |
1302 | for (p = result, i = 0; i < nr; i++) { |
1303 | /* Skip any duplicate keys; last one wins */ | |
1304 | while (i + 1 < nr && !wenvcmp(array + i, array + i + 1)) | |
1305 | i++; | |
77734da2 | 1306 | |
fe21c6b2 JS |
1307 | /* Skip "to delete" entry */ |
1308 | if (!wcschr(array[i], L'=')) | |
1309 | continue; | |
77734da2 | 1310 | |
fe21c6b2 JS |
1311 | size = wcslen(array[i]) + 1; |
1312 | memcpy(p, array[i], size * sizeof(*p)); | |
1313 | p += size; | |
df0e998c | 1314 | } |
fe21c6b2 JS |
1315 | *p = L'\0'; |
1316 | ||
1317 | free(array); | |
1318 | free(wdeltaenv); | |
1319 | FreeEnvironmentStringsW(wenv); | |
1320 | return result; | |
7e5d7768 JS |
1321 | } |
1322 | ||
0e218f91 JS |
1323 | static void do_unset_environment_variables(void) |
1324 | { | |
1325 | static int done; | |
1326 | char *p = unset_environment_variables; | |
1327 | ||
1328 | if (done || !p) | |
1329 | return; | |
1330 | done = 1; | |
1331 | ||
1332 | for (;;) { | |
1333 | char *comma = strchr(p, ','); | |
1334 | ||
1335 | if (comma) | |
1336 | *comma = '\0'; | |
1337 | unsetenv(p); | |
1338 | if (!comma) | |
1339 | break; | |
1340 | p = comma + 1; | |
1341 | } | |
1342 | } | |
1343 | ||
52de4db5 EFL |
1344 | struct pinfo_t { |
1345 | struct pinfo_t *next; | |
1346 | pid_t pid; | |
1347 | HANDLE proc; | |
657b35f4 RJ |
1348 | }; |
1349 | static struct pinfo_t *pinfo = NULL; | |
52de4db5 EFL |
1350 | CRITICAL_SECTION pinfo_cs; |
1351 | ||
9e9da23c JS |
1352 | /* Used to match and chomp off path components */ |
1353 | static inline int match_last_path_component(const char *path, size_t *len, | |
1354 | const char *component) | |
1355 | { | |
1356 | size_t component_len = strlen(component); | |
1357 | if (*len < component_len + 1 || | |
1358 | !is_dir_sep(path[*len - component_len - 1]) || | |
1359 | fspathncmp(path + *len - component_len, component, component_len)) | |
1360 | return 0; | |
1361 | *len -= component_len + 1; | |
1362 | /* chomp off repeated dir separators */ | |
1363 | while (*len > 0 && is_dir_sep(path[*len - 1])) | |
1364 | (*len)--; | |
1365 | return 1; | |
1366 | } | |
1367 | ||
1368 | static int is_msys2_sh(const char *cmd) | |
1369 | { | |
1370 | if (cmd && !strcmp(cmd, "sh")) { | |
1371 | static int ret = -1; | |
1372 | char *p; | |
1373 | ||
1374 | if (ret >= 0) | |
1375 | return ret; | |
1376 | ||
1377 | p = path_lookup(cmd, 0); | |
1378 | if (!p) | |
1379 | ret = 0; | |
1380 | else { | |
1381 | size_t len = strlen(p); | |
1382 | ||
1383 | ret = match_last_path_component(p, &len, "sh.exe") && | |
1384 | match_last_path_component(p, &len, "bin") && | |
1385 | match_last_path_component(p, &len, "usr"); | |
1386 | free(p); | |
1387 | } | |
1388 | return ret; | |
1389 | } | |
1390 | return 0; | |
1391 | } | |
1392 | ||
77734da2 | 1393 | static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **deltaenv, |
f9a2743c | 1394 | const char *dir, |
75301f90 | 1395 | int prepend_cmd, int fhin, int fhout, int fherr) |
7e5d7768 | 1396 | { |
99c3c76d | 1397 | STARTUPINFOW si; |
7e5d7768 | 1398 | PROCESS_INFORMATION pi; |
7eb2619c KB |
1399 | struct strbuf args; |
1400 | wchar_t wcmd[MAX_PATH], wdir[MAX_PATH], *wargs, *wenvblk = NULL; | |
1401 | unsigned flags = CREATE_UNICODE_ENVIRONMENT; | |
7e5d7768 | 1402 | BOOL ret; |
0e218f91 | 1403 | HANDLE cons; |
9e9da23c JS |
1404 | const char *(*quote_arg)(const char *arg) = |
1405 | is_msys2_sh(*argv) ? quote_arg_msys2 : quote_arg_msvc; | |
0e218f91 JS |
1406 | |
1407 | do_unset_environment_variables(); | |
7e5d7768 JS |
1408 | |
1409 | /* Determine whether or not we are associated to a console */ | |
0e218f91 | 1410 | cons = CreateFile("CONOUT$", GENERIC_WRITE, |
7e5d7768 JS |
1411 | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, |
1412 | FILE_ATTRIBUTE_NORMAL, NULL); | |
1413 | if (cons == INVALID_HANDLE_VALUE) { | |
1414 | /* There is no console associated with this process. | |
1415 | * Since the child is a console process, Windows | |
1416 | * would normally create a console window. But | |
1417 | * since we'll be redirecting std streams, we do | |
1418 | * not need the console. | |
19fb896f AG |
1419 | * It is necessary to use DETACHED_PROCESS |
1420 | * instead of CREATE_NO_WINDOW to make ssh | |
1421 | * recognize that it has no console. | |
7e5d7768 | 1422 | */ |
7eb2619c | 1423 | flags |= DETACHED_PROCESS; |
7e5d7768 JS |
1424 | } else { |
1425 | /* There is already a console. If we specified | |
19fb896f | 1426 | * DETACHED_PROCESS here, too, Windows would |
7e5d7768 | 1427 | * disassociate the child from the console. |
19fb896f | 1428 | * The same is true for CREATE_NO_WINDOW. |
7e5d7768 JS |
1429 | * Go figure! |
1430 | */ | |
7e5d7768 JS |
1431 | CloseHandle(cons); |
1432 | } | |
1433 | memset(&si, 0, sizeof(si)); | |
1434 | si.cb = sizeof(si); | |
1435 | si.dwFlags = STARTF_USESTDHANDLES; | |
eac14f89 KB |
1436 | si.hStdInput = winansi_get_osfhandle(fhin); |
1437 | si.hStdOutput = winansi_get_osfhandle(fhout); | |
1438 | si.hStdError = winansi_get_osfhandle(fherr); | |
7e5d7768 | 1439 | |
99c3c76d KB |
1440 | if (xutftowcs_path(wcmd, cmd) < 0) |
1441 | return -1; | |
1442 | if (dir && xutftowcs_path(wdir, dir) < 0) | |
1443 | return -1; | |
1444 | ||
7e5d7768 JS |
1445 | /* concatenate argv, quoting args as we go */ |
1446 | strbuf_init(&args, 0); | |
1447 | if (prepend_cmd) { | |
1448 | char *quoted = (char *)quote_arg(cmd); | |
1449 | strbuf_addstr(&args, quoted); | |
1450 | if (quoted != cmd) | |
1451 | free(quoted); | |
1452 | } | |
1453 | for (; *argv; argv++) { | |
1454 | char *quoted = (char *)quote_arg(*argv); | |
1455 | if (*args.buf) | |
1456 | strbuf_addch(&args, ' '); | |
1457 | strbuf_addstr(&args, quoted); | |
1458 | if (quoted != *argv) | |
1459 | free(quoted); | |
1460 | } | |
1461 | ||
8d5b3325 | 1462 | ALLOC_ARRAY(wargs, st_add(st_mult(2, args.len), 1)); |
99c3c76d KB |
1463 | xutftowcs(wargs, args.buf, 2 * args.len + 1); |
1464 | strbuf_release(&args); | |
1465 | ||
77734da2 | 1466 | wenvblk = make_environment_block(deltaenv); |
7e5d7768 JS |
1467 | |
1468 | memset(&pi, 0, sizeof(pi)); | |
99c3c76d | 1469 | ret = CreateProcessW(wcmd, wargs, NULL, NULL, TRUE, flags, |
7eb2619c | 1470 | wenvblk, dir ? wdir : NULL, &si, &pi); |
7e5d7768 | 1471 | |
7eb2619c | 1472 | free(wenvblk); |
99c3c76d | 1473 | free(wargs); |
7e5d7768 JS |
1474 | |
1475 | if (!ret) { | |
1476 | errno = ENOENT; | |
1477 | return -1; | |
1478 | } | |
1479 | CloseHandle(pi.hThread); | |
52de4db5 EFL |
1480 | |
1481 | /* | |
1482 | * The process ID is the human-readable identifier of the process | |
1483 | * that we want to present in log and error messages. The handle | |
1484 | * is not useful for this purpose. But we cannot close it, either, | |
1485 | * because it is not possible to turn a process ID into a process | |
1486 | * handle after the process terminated. | |
1487 | * Keep the handle in a list for waitpid. | |
1488 | */ | |
1489 | EnterCriticalSection(&pinfo_cs); | |
1490 | { | |
1491 | struct pinfo_t *info = xmalloc(sizeof(struct pinfo_t)); | |
1492 | info->pid = pi.dwProcessId; | |
1493 | info->proc = pi.hProcess; | |
1494 | info->next = pinfo; | |
1495 | pinfo = info; | |
1496 | } | |
1497 | LeaveCriticalSection(&pinfo_cs); | |
1498 | ||
1499 | return (pid_t)pi.dwProcessId; | |
7e5d7768 JS |
1500 | } |
1501 | ||
3e66e47b | 1502 | static pid_t mingw_spawnv(const char *cmd, const char **argv, int prepend_cmd) |
75301f90 | 1503 | { |
77734da2 | 1504 | return mingw_spawnve_fd(cmd, argv, NULL, NULL, prepend_cmd, 0, 1, 2); |
75301f90 JS |
1505 | } |
1506 | ||
77734da2 | 1507 | pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **deltaenv, |
f9a2743c | 1508 | const char *dir, |
75301f90 | 1509 | int fhin, int fhout, int fherr) |
7e5d7768 JS |
1510 | { |
1511 | pid_t pid; | |
e0ca1ca2 | 1512 | char *prog = path_lookup(cmd, 0); |
7e5d7768 JS |
1513 | |
1514 | if (!prog) { | |
1515 | errno = ENOENT; | |
1516 | pid = -1; | |
1517 | } | |
1518 | else { | |
1519 | const char *interpr = parse_interpreter(prog); | |
1520 | ||
1521 | if (interpr) { | |
1522 | const char *argv0 = argv[0]; | |
e0ca1ca2 | 1523 | char *iprog = path_lookup(interpr, 1); |
7e5d7768 JS |
1524 | argv[0] = prog; |
1525 | if (!iprog) { | |
1526 | errno = ENOENT; | |
1527 | pid = -1; | |
1528 | } | |
1529 | else { | |
77734da2 | 1530 | pid = mingw_spawnve_fd(iprog, argv, deltaenv, dir, 1, |
75301f90 | 1531 | fhin, fhout, fherr); |
7e5d7768 JS |
1532 | free(iprog); |
1533 | } | |
1534 | argv[0] = argv0; | |
1535 | } | |
1536 | else | |
77734da2 | 1537 | pid = mingw_spawnve_fd(prog, argv, deltaenv, dir, 0, |
75301f90 | 1538 | fhin, fhout, fherr); |
7e5d7768 JS |
1539 | free(prog); |
1540 | } | |
7e5d7768 JS |
1541 | return pid; |
1542 | } | |
1543 | ||
3e66e47b | 1544 | static int try_shell_exec(const char *cmd, char *const *argv) |
f1a4dfb8 JS |
1545 | { |
1546 | const char *interpr = parse_interpreter(cmd); | |
f1a4dfb8 JS |
1547 | char *prog; |
1548 | int pid = 0; | |
1549 | ||
1550 | if (!interpr) | |
1551 | return 0; | |
e0ca1ca2 | 1552 | prog = path_lookup(interpr, 1); |
f1a4dfb8 | 1553 | if (prog) { |
ee4512ed | 1554 | int exec_id; |
f1a4dfb8 | 1555 | int argc = 0; |
12fb9bd8 JH |
1556 | #ifndef _MSC_VER |
1557 | const | |
1558 | #endif | |
1559 | char **argv2; | |
f1a4dfb8 | 1560 | while (argv[argc]) argc++; |
b32fa95f | 1561 | ALLOC_ARRAY(argv2, argc + 1); |
7e5d7768 JS |
1562 | argv2[0] = (char *)cmd; /* full path to the script file */ |
1563 | memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc); | |
ee4512ed | 1564 | exec_id = trace2_exec(prog, argv2); |
3e66e47b | 1565 | pid = mingw_spawnv(prog, argv2, 1); |
f1a4dfb8 JS |
1566 | if (pid >= 0) { |
1567 | int status; | |
1568 | if (waitpid(pid, &status, 0) < 0) | |
1569 | status = 255; | |
ee4512ed | 1570 | trace2_exec_result(exec_id, status); |
f1a4dfb8 JS |
1571 | exit(status); |
1572 | } | |
ee4512ed | 1573 | trace2_exec_result(exec_id, -1); |
f1a4dfb8 JS |
1574 | pid = 1; /* indicate that we tried but failed */ |
1575 | free(prog); | |
1576 | free(argv2); | |
1577 | } | |
f1a4dfb8 JS |
1578 | return pid; |
1579 | } | |
1580 | ||
3e66e47b | 1581 | int mingw_execv(const char *cmd, char *const *argv) |
f1a4dfb8 JS |
1582 | { |
1583 | /* check if git_command is a shell script */ | |
3e66e47b | 1584 | if (!try_shell_exec(cmd, argv)) { |
f1a4dfb8 | 1585 | int pid, status; |
ee4512ed | 1586 | int exec_id; |
f1a4dfb8 | 1587 | |
ee4512ed | 1588 | exec_id = trace2_exec(cmd, (const char **)argv); |
3e66e47b | 1589 | pid = mingw_spawnv(cmd, (const char **)argv, 0); |
ee4512ed JH |
1590 | if (pid < 0) { |
1591 | trace2_exec_result(exec_id, -1); | |
570f1e6e | 1592 | return -1; |
ee4512ed | 1593 | } |
f1a4dfb8 JS |
1594 | if (waitpid(pid, &status, 0) < 0) |
1595 | status = 255; | |
ee4512ed | 1596 | trace2_exec_result(exec_id, status); |
f1a4dfb8 JS |
1597 | exit(status); |
1598 | } | |
570f1e6e | 1599 | return -1; |
f1a4dfb8 JS |
1600 | } |
1601 | ||
1696d723 | 1602 | int mingw_execvp(const char *cmd, char *const *argv) |
f1a4dfb8 | 1603 | { |
e0ca1ca2 | 1604 | char *prog = path_lookup(cmd, 0); |
f1a4dfb8 JS |
1605 | |
1606 | if (prog) { | |
3e66e47b | 1607 | mingw_execv(prog, argv); |
f1a4dfb8 JS |
1608 | free(prog); |
1609 | } else | |
1610 | errno = ENOENT; | |
1611 | ||
1696d723 | 1612 | return -1; |
f1a4dfb8 JS |
1613 | } |
1614 | ||
82fc07b7 EFL |
1615 | int mingw_kill(pid_t pid, int sig) |
1616 | { | |
1617 | if (pid > 0 && sig == SIGTERM) { | |
1618 | HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid); | |
1619 | ||
1620 | if (TerminateProcess(h, -1)) { | |
1621 | CloseHandle(h); | |
1622 | return 0; | |
1623 | } | |
1624 | ||
1625 | errno = err_win_to_posix(GetLastError()); | |
1626 | CloseHandle(h); | |
1627 | return -1; | |
64a99eb4 NTND |
1628 | } else if (pid > 0 && sig == 0) { |
1629 | HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid); | |
1630 | if (h) { | |
1631 | CloseHandle(h); | |
1632 | return 0; | |
1633 | } | |
82fc07b7 EFL |
1634 | } |
1635 | ||
1636 | errno = EINVAL; | |
1637 | return -1; | |
1638 | } | |
1639 | ||
343ff06d | 1640 | /* |
fe21c6b2 JS |
1641 | * UTF-8 versions of getenv(), putenv() and unsetenv(). |
1642 | * Internally, they use the CRT's stock UNICODE routines | |
1643 | * to avoid data loss. | |
343ff06d | 1644 | */ |
fe21c6b2 | 1645 | char *mingw_getenv(const char *name) |
343ff06d | 1646 | { |
ca1b4116 | 1647 | #define GETENV_MAX_RETAIN 64 |
fe21c6b2 JS |
1648 | static char *values[GETENV_MAX_RETAIN]; |
1649 | static int value_counter; | |
1650 | int len_key, len_value; | |
1651 | wchar_t *w_key; | |
1652 | char *value; | |
1653 | wchar_t w_value[32768]; | |
343ff06d | 1654 | |
fe21c6b2 JS |
1655 | if (!name || !*name) |
1656 | return NULL; | |
ba26f296 | 1657 | |
fe21c6b2 JS |
1658 | len_key = strlen(name) + 1; |
1659 | /* We cannot use xcalloc() here because that uses getenv() itself */ | |
1660 | w_key = calloc(len_key, sizeof(wchar_t)); | |
1661 | if (!w_key) | |
1662 | die("Out of memory, (tried to allocate %u wchar_t's)", len_key); | |
1663 | xutftowcs(w_key, name, len_key); | |
1664 | len_value = GetEnvironmentVariableW(w_key, w_value, ARRAY_SIZE(w_value)); | |
1665 | if (!len_value && GetLastError() == ERROR_ENVVAR_NOT_FOUND) { | |
1666 | free(w_key); | |
1667 | return NULL; | |
ba26f296 | 1668 | } |
fe21c6b2 JS |
1669 | free(w_key); |
1670 | ||
1671 | len_value = len_value * 3 + 1; | |
1672 | /* We cannot use xcalloc() here because that uses getenv() itself */ | |
1673 | value = calloc(len_value, sizeof(char)); | |
1674 | if (!value) | |
1675 | die("Out of memory, (tried to allocate %u bytes)", len_value); | |
1676 | xwcstoutf(value, w_value, len_value); | |
1677 | ||
1678 | /* | |
1679 | * We return `value` which is an allocated value and the caller is NOT | |
1680 | * expecting to have to free it, so we keep a round-robin array, | |
1681 | * invalidating the buffer after GETENV_MAX_RETAIN getenv() calls. | |
1682 | */ | |
1683 | free(values[value_counter]); | |
1684 | values[value_counter++] = value; | |
1685 | if (value_counter >= ARRAY_SIZE(values)) | |
1686 | value_counter = 0; | |
1687 | ||
1688 | return value; | |
ba26f296 JS |
1689 | } |
1690 | ||
fe21c6b2 | 1691 | int mingw_putenv(const char *namevalue) |
ba26f296 | 1692 | { |
fe21c6b2 JS |
1693 | int size; |
1694 | wchar_t *wide, *equal; | |
1695 | BOOL result; | |
ba26f296 | 1696 | |
fe21c6b2 JS |
1697 | if (!namevalue || !*namevalue) |
1698 | return 0; | |
ba26f296 | 1699 | |
fe21c6b2 JS |
1700 | size = strlen(namevalue) * 2 + 1; |
1701 | wide = calloc(size, sizeof(wchar_t)); | |
1702 | if (!wide) | |
1703 | die("Out of memory, (tried to allocate %u wchar_t's)", size); | |
1704 | xutftowcs(wide, namevalue, size); | |
1705 | equal = wcschr(wide, L'='); | |
1706 | if (!equal) | |
1707 | result = SetEnvironmentVariableW(wide, NULL); | |
1708 | else { | |
1709 | *equal = L'\0'; | |
1710 | result = SetEnvironmentVariableW(wide, equal + 1); | |
ba26f296 | 1711 | } |
fe21c6b2 | 1712 | free(wide); |
2affea41 | 1713 | |
fe21c6b2 JS |
1714 | if (!result) |
1715 | errno = err_win_to_posix(GetLastError()); | |
df599e96 | 1716 | |
fe21c6b2 | 1717 | return result ? 0 : -1; |
06bc4b79 JS |
1718 | } |
1719 | ||
b7cc9f82 | 1720 | static void ensure_socket_initialization(void) |
746fb857 JS |
1721 | { |
1722 | WSADATA wsa; | |
b7cc9f82 MS |
1723 | static int initialized = 0; |
1724 | ||
1725 | if (initialized) | |
1726 | return; | |
746fb857 JS |
1727 | |
1728 | if (WSAStartup(MAKEWORD(2,2), &wsa)) | |
1729 | die("unable to initialize winsock subsystem, error %d", | |
1730 | WSAGetLastError()); | |
fe3b2b7b | 1731 | |
b9f0193b | 1732 | atexit((void(*)(void)) WSACleanup); |
b7cc9f82 MS |
1733 | initialized = 1; |
1734 | } | |
1735 | ||
13d24b01 PT |
1736 | #undef gethostname |
1737 | int mingw_gethostname(char *name, int namelen) | |
1738 | { | |
1739 | ensure_socket_initialization(); | |
1740 | return gethostname(name, namelen); | |
1741 | } | |
1742 | ||
b7cc9f82 MS |
1743 | #undef gethostbyname |
1744 | struct hostent *mingw_gethostbyname(const char *host) | |
1745 | { | |
1746 | ensure_socket_initialization(); | |
746fb857 JS |
1747 | return gethostbyname(host); |
1748 | } | |
1749 | ||
b9f0193b | 1750 | #undef getaddrinfo |
fe3b2b7b MS |
1751 | int mingw_getaddrinfo(const char *node, const char *service, |
1752 | const struct addrinfo *hints, struct addrinfo **res) | |
1753 | { | |
1754 | ensure_socket_initialization(); | |
b9f0193b | 1755 | return getaddrinfo(node, service, hints, res); |
fe3b2b7b MS |
1756 | } |
1757 | ||
746fb857 JS |
1758 | int mingw_socket(int domain, int type, int protocol) |
1759 | { | |
1760 | int sockfd; | |
772991af MP |
1761 | SOCKET s; |
1762 | ||
1763 | ensure_socket_initialization(); | |
1764 | s = WSASocket(domain, type, protocol, NULL, 0, 0); | |
746fb857 JS |
1765 | if (s == INVALID_SOCKET) { |
1766 | /* | |
1767 | * WSAGetLastError() values are regular BSD error codes | |
1768 | * biased by WSABASEERR. | |
1769 | * However, strerror() does not know about networking | |
1770 | * specific errors, which are values beginning at 38 or so. | |
1771 | * Therefore, we choose to leave the biased error code | |
1772 | * in errno so that _if_ someone looks up the code somewhere, | |
1773 | * then it is at least the number that are usually listed. | |
1774 | */ | |
1775 | errno = WSAGetLastError(); | |
1776 | return -1; | |
1777 | } | |
1778 | /* convert into a file descriptor */ | |
1779 | if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) { | |
1780 | closesocket(s); | |
1781 | return error("unable to make a socket file descriptor: %s", | |
1782 | strerror(errno)); | |
1783 | } | |
1784 | return sockfd; | |
1785 | } | |
1786 | ||
1787 | #undef connect | |
1788 | int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz) | |
1789 | { | |
1790 | SOCKET s = (SOCKET)_get_osfhandle(sockfd); | |
1791 | return connect(s, sa, sz); | |
1792 | } | |
1793 | ||
772991af MP |
1794 | #undef bind |
1795 | int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz) | |
1796 | { | |
1797 | SOCKET s = (SOCKET)_get_osfhandle(sockfd); | |
1798 | return bind(s, sa, sz); | |
1799 | } | |
1800 | ||
1801 | #undef setsockopt | |
1802 | int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen) | |
1803 | { | |
1804 | SOCKET s = (SOCKET)_get_osfhandle(sockfd); | |
1805 | return setsockopt(s, lvl, optname, (const char*)optval, optlen); | |
1806 | } | |
1807 | ||
a7941795 JS |
1808 | #undef shutdown |
1809 | int mingw_shutdown(int sockfd, int how) | |
1810 | { | |
1811 | SOCKET s = (SOCKET)_get_osfhandle(sockfd); | |
1812 | return shutdown(s, how); | |
1813 | } | |
1814 | ||
772991af MP |
1815 | #undef listen |
1816 | int mingw_listen(int sockfd, int backlog) | |
1817 | { | |
1818 | SOCKET s = (SOCKET)_get_osfhandle(sockfd); | |
1819 | return listen(s, backlog); | |
1820 | } | |
1821 | ||
1822 | #undef accept | |
1823 | int mingw_accept(int sockfd1, struct sockaddr *sa, socklen_t *sz) | |
1824 | { | |
1825 | int sockfd2; | |
1826 | ||
1827 | SOCKET s1 = (SOCKET)_get_osfhandle(sockfd1); | |
1828 | SOCKET s2 = accept(s1, sa, sz); | |
1829 | ||
1830 | /* convert into a file descriptor */ | |
1831 | if ((sockfd2 = _open_osfhandle(s2, O_RDWR|O_BINARY)) < 0) { | |
1832 | int err = errno; | |
1833 | closesocket(s2); | |
1834 | return error("unable to make a socket file descriptor: %s", | |
1835 | strerror(err)); | |
1836 | } | |
1837 | return sockfd2; | |
1838 | } | |
1839 | ||
ea9e98c3 JS |
1840 | #undef rename |
1841 | int mingw_rename(const char *pold, const char *pnew) | |
1842 | { | |
6ac6f878 JS |
1843 | DWORD attrs, gle; |
1844 | int tries = 0; | |
85faec9d KB |
1845 | wchar_t wpold[MAX_PATH], wpnew[MAX_PATH]; |
1846 | if (xutftowcs_path(wpold, pold) < 0 || xutftowcs_path(wpnew, pnew) < 0) | |
1847 | return -1; | |
632f7017 | 1848 | |
ea9e98c3 JS |
1849 | /* |
1850 | * Try native rename() first to get errno right. | |
1851 | * It is based on MoveFile(), which cannot overwrite existing files. | |
1852 | */ | |
85faec9d | 1853 | if (!_wrename(wpold, wpnew)) |
ea9e98c3 JS |
1854 | return 0; |
1855 | if (errno != EEXIST) | |
1856 | return -1; | |
6ac6f878 | 1857 | repeat: |
85faec9d | 1858 | if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING)) |
ea9e98c3 JS |
1859 | return 0; |
1860 | /* TODO: translate more errors */ | |
6ac6f878 JS |
1861 | gle = GetLastError(); |
1862 | if (gle == ERROR_ACCESS_DENIED && | |
85faec9d | 1863 | (attrs = GetFileAttributesW(wpnew)) != INVALID_FILE_ATTRIBUTES) { |
632f7017 | 1864 | if (attrs & FILE_ATTRIBUTE_DIRECTORY) { |
4426fb51 | 1865 | DWORD attrsold = GetFileAttributesW(wpold); |
1866 | if (attrsold == INVALID_FILE_ATTRIBUTES || | |
1867 | !(attrsold & FILE_ATTRIBUTE_DIRECTORY)) | |
1868 | errno = EISDIR; | |
1869 | else if (!_wrmdir(wpnew)) | |
1870 | goto repeat; | |
ea9e98c3 JS |
1871 | return -1; |
1872 | } | |
632f7017 | 1873 | if ((attrs & FILE_ATTRIBUTE_READONLY) && |
85faec9d KB |
1874 | SetFileAttributesW(wpnew, attrs & ~FILE_ATTRIBUTE_READONLY)) { |
1875 | if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING)) | |
632f7017 | 1876 | return 0; |
6ac6f878 | 1877 | gle = GetLastError(); |
632f7017 | 1878 | /* revert file attributes on failure */ |
85faec9d | 1879 | SetFileAttributesW(wpnew, attrs); |
632f7017 | 1880 | } |
ea9e98c3 | 1881 | } |
6ac6f878 JS |
1882 | if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) { |
1883 | /* | |
1884 | * We assume that some other process had the source or | |
1885 | * destination file open at the wrong moment and retry. | |
1886 | * In order to give the other process a higher chance to | |
1887 | * complete its operation, we give up our time slice now. | |
1888 | * If we have to retry again, we do sleep a bit. | |
1889 | */ | |
1890 | Sleep(delay[tries]); | |
1891 | tries++; | |
1892 | goto repeat; | |
1893 | } | |
c9b78400 HV |
1894 | if (gle == ERROR_ACCESS_DENIED && |
1895 | ask_yes_no_if_possible("Rename from '%s' to '%s' failed. " | |
1896 | "Should I try again?", pold, pnew)) | |
1897 | goto repeat; | |
1898 | ||
ea9e98c3 JS |
1899 | errno = EACCES; |
1900 | return -1; | |
1901 | } | |
1902 | ||
b1b95204 RJ |
1903 | /* |
1904 | * Note that this doesn't return the actual pagesize, but | |
1905 | * the allocation granularity. If future Windows specific git code | |
1906 | * needs the real getpagesize function, we need to find another solution. | |
1907 | */ | |
1908 | int mingw_getpagesize(void) | |
1909 | { | |
1910 | SYSTEM_INFO si; | |
1911 | GetSystemInfo(&si); | |
1912 | return si.dwAllocationGranularity; | |
1913 | } | |
1914 | ||
564be791 JS |
1915 | /* See https://msdn.microsoft.com/en-us/library/windows/desktop/ms724435.aspx */ |
1916 | enum EXTENDED_NAME_FORMAT { | |
1917 | NameDisplay = 3, | |
1918 | NameUserPrincipal = 8 | |
1919 | }; | |
1920 | ||
1921 | static char *get_extended_user_info(enum EXTENDED_NAME_FORMAT type) | |
1922 | { | |
1923 | DECLARE_PROC_ADDR(secur32.dll, BOOL, GetUserNameExW, | |
1924 | enum EXTENDED_NAME_FORMAT, LPCWSTR, PULONG); | |
1925 | static wchar_t wbuffer[1024]; | |
1926 | DWORD len; | |
1927 | ||
1928 | if (!INIT_PROC_ADDR(GetUserNameExW)) | |
1929 | return NULL; | |
1930 | ||
1931 | len = ARRAY_SIZE(wbuffer); | |
1932 | if (GetUserNameExW(type, wbuffer, &len)) { | |
1933 | char *converted = xmalloc((len *= 3)); | |
1934 | if (xwcstoutf(converted, wbuffer, len) >= 0) | |
1935 | return converted; | |
1936 | free(converted); | |
1937 | } | |
1938 | ||
1939 | return NULL; | |
1940 | } | |
1941 | ||
501afcb8 JS |
1942 | char *mingw_query_user_email(void) |
1943 | { | |
1944 | return get_extended_user_info(NameUserPrincipal); | |
1945 | } | |
1946 | ||
f4626df5 JS |
1947 | struct passwd *getpwuid(int uid) |
1948 | { | |
55b6513e | 1949 | static unsigned initialized; |
f7597aca | 1950 | static char user_name[100]; |
55b6513e JS |
1951 | static struct passwd *p; |
1952 | DWORD len; | |
f7597aca | 1953 | |
55b6513e JS |
1954 | if (initialized) |
1955 | return p; | |
f7597aca | 1956 | |
55b6513e JS |
1957 | len = sizeof(user_name); |
1958 | if (!GetUserName(user_name, &len)) { | |
1959 | initialized = 1; | |
f7597aca | 1960 | return NULL; |
55b6513e JS |
1961 | } |
1962 | ||
1963 | p = xmalloc(sizeof(*p)); | |
1964 | p->pw_name = user_name; | |
564be791 JS |
1965 | p->pw_gecos = get_extended_user_info(NameDisplay); |
1966 | if (!p->pw_gecos) | |
1967 | p->pw_gecos = "unknown"; | |
55b6513e JS |
1968 | p->pw_dir = NULL; |
1969 | ||
1970 | initialized = 1; | |
1971 | return p; | |
f4626df5 JS |
1972 | } |
1973 | ||
6072fc31 JS |
1974 | static HANDLE timer_event; |
1975 | static HANDLE timer_thread; | |
1976 | static int timer_interval; | |
1977 | static int one_shot; | |
176478a8 | 1978 | static sig_handler_t timer_fn = SIG_DFL, sigint_fn = SIG_DFL; |
6072fc31 JS |
1979 | |
1980 | /* The timer works like this: | |
1981 | * The thread, ticktack(), is a trivial routine that most of the time | |
1982 | * only waits to receive the signal to terminate. The main thread tells | |
1983 | * the thread to terminate by setting the timer_event to the signalled | |
1984 | * state. | |
1985 | * But ticktack() interrupts the wait state after the timer's interval | |
1986 | * length to call the signal handler. | |
1987 | */ | |
1988 | ||
d7fa500f | 1989 | static unsigned __stdcall ticktack(void *dummy) |
6072fc31 JS |
1990 | { |
1991 | while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) { | |
176478a8 | 1992 | mingw_raise(SIGALRM); |
6072fc31 JS |
1993 | if (one_shot) |
1994 | break; | |
1995 | } | |
1996 | return 0; | |
1997 | } | |
1998 | ||
1999 | static int start_timer_thread(void) | |
2000 | { | |
2001 | timer_event = CreateEvent(NULL, FALSE, FALSE, NULL); | |
2002 | if (timer_event) { | |
2003 | timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL); | |
2004 | if (!timer_thread ) | |
2005 | return errno = ENOMEM, | |
2006 | error("cannot start timer thread"); | |
2007 | } else | |
2008 | return errno = ENOMEM, | |
2009 | error("cannot allocate resources for timer"); | |
2010 | return 0; | |
2011 | } | |
2012 | ||
2013 | static void stop_timer_thread(void) | |
2014 | { | |
2015 | if (timer_event) | |
2016 | SetEvent(timer_event); /* tell thread to terminate */ | |
2017 | if (timer_thread) { | |
72d63b2f | 2018 | int rc = WaitForSingleObject(timer_thread, 10000); |
6072fc31 JS |
2019 | if (rc == WAIT_TIMEOUT) |
2020 | error("timer thread did not terminate timely"); | |
2021 | else if (rc != WAIT_OBJECT_0) | |
2022 | error("waiting for timer thread failed: %lu", | |
2023 | GetLastError()); | |
2024 | CloseHandle(timer_thread); | |
2025 | } | |
2026 | if (timer_event) | |
2027 | CloseHandle(timer_event); | |
2028 | timer_event = NULL; | |
2029 | timer_thread = NULL; | |
2030 | } | |
2031 | ||
2032 | static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2) | |
2033 | { | |
2034 | return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec; | |
2035 | } | |
2036 | ||
f4626df5 JS |
2037 | int setitimer(int type, struct itimerval *in, struct itimerval *out) |
2038 | { | |
6072fc31 JS |
2039 | static const struct timeval zero; |
2040 | static int atexit_done; | |
2041 | ||
2042 | if (out != NULL) | |
2043 | return errno = EINVAL, | |
2044 | error("setitimer param 3 != NULL not implemented"); | |
2045 | if (!is_timeval_eq(&in->it_interval, &zero) && | |
2046 | !is_timeval_eq(&in->it_interval, &in->it_value)) | |
2047 | return errno = EINVAL, | |
2048 | error("setitimer: it_interval must be zero or eq it_value"); | |
2049 | ||
2050 | if (timer_thread) | |
2051 | stop_timer_thread(); | |
2052 | ||
2053 | if (is_timeval_eq(&in->it_value, &zero) && | |
2054 | is_timeval_eq(&in->it_interval, &zero)) | |
2055 | return 0; | |
2056 | ||
2057 | timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000; | |
2058 | one_shot = is_timeval_eq(&in->it_interval, &zero); | |
2059 | if (!atexit_done) { | |
2060 | atexit(stop_timer_thread); | |
2061 | atexit_done = 1; | |
2062 | } | |
2063 | return start_timer_thread(); | |
f4626df5 JS |
2064 | } |
2065 | ||
2066 | int sigaction(int sig, struct sigaction *in, struct sigaction *out) | |
2067 | { | |
6072fc31 JS |
2068 | if (sig != SIGALRM) |
2069 | return errno = EINVAL, | |
2070 | error("sigaction only implemented for SIGALRM"); | |
2071 | if (out != NULL) | |
2072 | return errno = EINVAL, | |
2073 | error("sigaction: param 3 != NULL not implemented"); | |
2074 | ||
2075 | timer_fn = in->sa_handler; | |
2076 | return 0; | |
2077 | } | |
2078 | ||
2079 | #undef signal | |
2080 | sig_handler_t mingw_signal(int sig, sig_handler_t handler) | |
2081 | { | |
a4540658 | 2082 | sig_handler_t old; |
176478a8 EFL |
2083 | |
2084 | switch (sig) { | |
2085 | case SIGALRM: | |
a4540658 | 2086 | old = timer_fn; |
176478a8 EFL |
2087 | timer_fn = handler; |
2088 | break; | |
2089 | ||
2090 | case SIGINT: | |
a4540658 | 2091 | old = sigint_fn; |
176478a8 EFL |
2092 | sigint_fn = handler; |
2093 | break; | |
2094 | ||
2095 | default: | |
6072fc31 | 2096 | return signal(sig, handler); |
176478a8 EFL |
2097 | } |
2098 | ||
6072fc31 | 2099 | return old; |
f4626df5 | 2100 | } |
4804aabc | 2101 | |
176478a8 EFL |
2102 | #undef raise |
2103 | int mingw_raise(int sig) | |
2104 | { | |
2105 | switch (sig) { | |
2106 | case SIGALRM: | |
2107 | if (timer_fn == SIG_DFL) { | |
2108 | if (isatty(STDERR_FILENO)) | |
2109 | fputs("Alarm clock\n", stderr); | |
2110 | exit(128 + SIGALRM); | |
2111 | } else if (timer_fn != SIG_IGN) | |
2112 | timer_fn(SIGALRM); | |
2113 | return 0; | |
2114 | ||
2115 | case SIGINT: | |
2116 | if (sigint_fn == SIG_DFL) | |
2117 | exit(128 + SIGINT); | |
2118 | else if (sigint_fn != SIG_IGN) | |
2119 | sigint_fn(SIGINT); | |
2120 | return 0; | |
2121 | ||
446df603 JH |
2122 | #if defined(_MSC_VER) |
2123 | case SIGILL: | |
2124 | case SIGFPE: | |
2125 | case SIGSEGV: | |
2126 | case SIGTERM: | |
2127 | case SIGBREAK: | |
2128 | case SIGABRT: | |
2129 | case SIGABRT_COMPAT: | |
2130 | /* | |
2131 | * The <signal.h> header in the MS C Runtime defines 8 signals | |
2132 | * as being supported on the platform. Anything else causes an | |
2133 | * "Invalid signal or error" (which in DEBUG builds causes the | |
2134 | * Abort/Retry/Ignore dialog). We by-pass the CRT for things we | |
2135 | * already know will fail. | |
2136 | */ | |
2137 | return raise(sig); | |
2138 | default: | |
2139 | errno = EINVAL; | |
2140 | return -1; | |
2141 | ||
2142 | #else | |
2143 | ||
176478a8 EFL |
2144 | default: |
2145 | return raise(sig); | |
446df603 JH |
2146 | |
2147 | #endif | |
2148 | ||
176478a8 EFL |
2149 | } |
2150 | } | |
2151 | ||
7be401e0 PK |
2152 | int link(const char *oldpath, const char *newpath) |
2153 | { | |
85faec9d KB |
2154 | wchar_t woldpath[MAX_PATH], wnewpath[MAX_PATH]; |
2155 | if (xutftowcs_path(woldpath, oldpath) < 0 || | |
2156 | xutftowcs_path(wnewpath, newpath) < 0) | |
2157 | return -1; | |
2158 | ||
1e1a876b | 2159 | if (!CreateHardLinkW(wnewpath, woldpath, NULL)) { |
7be401e0 PK |
2160 | errno = err_win_to_posix(GetLastError()); |
2161 | return -1; | |
2162 | } | |
2163 | return 0; | |
2164 | } | |
0dbbbc1e | 2165 | |
956d86d1 | 2166 | pid_t waitpid(pid_t pid, int *status, int options) |
52de4db5 EFL |
2167 | { |
2168 | HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION, | |
2169 | FALSE, pid); | |
2170 | if (!h) { | |
2171 | errno = ECHILD; | |
2172 | return -1; | |
2173 | } | |
2174 | ||
ef7108ca EFL |
2175 | if (pid > 0 && options & WNOHANG) { |
2176 | if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) { | |
2177 | CloseHandle(h); | |
2178 | return 0; | |
2179 | } | |
2180 | options &= ~WNOHANG; | |
2181 | } | |
2182 | ||
52de4db5 EFL |
2183 | if (options == 0) { |
2184 | struct pinfo_t **ppinfo; | |
2185 | if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) { | |
2186 | CloseHandle(h); | |
2187 | return 0; | |
2188 | } | |
2189 | ||
2190 | if (status) | |
2191 | GetExitCodeProcess(h, (LPDWORD)status); | |
2192 | ||
2193 | EnterCriticalSection(&pinfo_cs); | |
2194 | ||
2195 | ppinfo = &pinfo; | |
2196 | while (*ppinfo) { | |
2197 | struct pinfo_t *info = *ppinfo; | |
2198 | if (info->pid == pid) { | |
2199 | CloseHandle(info->proc); | |
2200 | *ppinfo = info->next; | |
2201 | free(info); | |
2202 | break; | |
2203 | } | |
2204 | ppinfo = &info->next; | |
2205 | } | |
2206 | ||
2207 | LeaveCriticalSection(&pinfo_cs); | |
2208 | ||
2209 | CloseHandle(h); | |
2210 | return pid; | |
2211 | } | |
2212 | CloseHandle(h); | |
2213 | ||
2214 | errno = EINVAL; | |
2215 | return -1; | |
2216 | } | |
c2369bdf | 2217 | |
1c950a59 KB |
2218 | int xutftowcsn(wchar_t *wcs, const char *utfs, size_t wcslen, int utflen) |
2219 | { | |
2220 | int upos = 0, wpos = 0; | |
2221 | const unsigned char *utf = (const unsigned char*) utfs; | |
2222 | if (!utf || !wcs || wcslen < 1) { | |
2223 | errno = EINVAL; | |
2224 | return -1; | |
2225 | } | |
2226 | /* reserve space for \0 */ | |
2227 | wcslen--; | |
2228 | if (utflen < 0) | |
2229 | utflen = INT_MAX; | |
2230 | ||
2231 | while (upos < utflen) { | |
2232 | int c = utf[upos++] & 0xff; | |
2233 | if (utflen == INT_MAX && c == 0) | |
2234 | break; | |
2235 | ||
2236 | if (wpos >= wcslen) { | |
2237 | wcs[wpos] = 0; | |
2238 | errno = ERANGE; | |
2239 | return -1; | |
2240 | } | |
2241 | ||
2242 | if (c < 0x80) { | |
2243 | /* ASCII */ | |
2244 | wcs[wpos++] = c; | |
2245 | } else if (c >= 0xc2 && c < 0xe0 && upos < utflen && | |
2246 | (utf[upos] & 0xc0) == 0x80) { | |
2247 | /* 2-byte utf-8 */ | |
2248 | c = ((c & 0x1f) << 6); | |
2249 | c |= (utf[upos++] & 0x3f); | |
2250 | wcs[wpos++] = c; | |
2251 | } else if (c >= 0xe0 && c < 0xf0 && upos + 1 < utflen && | |
2252 | !(c == 0xe0 && utf[upos] < 0xa0) && /* over-long encoding */ | |
2253 | (utf[upos] & 0xc0) == 0x80 && | |
2254 | (utf[upos + 1] & 0xc0) == 0x80) { | |
2255 | /* 3-byte utf-8 */ | |
2256 | c = ((c & 0x0f) << 12); | |
2257 | c |= ((utf[upos++] & 0x3f) << 6); | |
2258 | c |= (utf[upos++] & 0x3f); | |
2259 | wcs[wpos++] = c; | |
2260 | } else if (c >= 0xf0 && c < 0xf5 && upos + 2 < utflen && | |
2261 | wpos + 1 < wcslen && | |
2262 | !(c == 0xf0 && utf[upos] < 0x90) && /* over-long encoding */ | |
2263 | !(c == 0xf4 && utf[upos] >= 0x90) && /* > \u10ffff */ | |
2264 | (utf[upos] & 0xc0) == 0x80 && | |
2265 | (utf[upos + 1] & 0xc0) == 0x80 && | |
2266 | (utf[upos + 2] & 0xc0) == 0x80) { | |
2267 | /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */ | |
2268 | c = ((c & 0x07) << 18); | |
2269 | c |= ((utf[upos++] & 0x3f) << 12); | |
2270 | c |= ((utf[upos++] & 0x3f) << 6); | |
2271 | c |= (utf[upos++] & 0x3f); | |
2272 | c -= 0x10000; | |
2273 | wcs[wpos++] = 0xd800 | (c >> 10); | |
2274 | wcs[wpos++] = 0xdc00 | (c & 0x3ff); | |
2275 | } else if (c >= 0xa0) { | |
2276 | /* invalid utf-8 byte, printable unicode char: convert 1:1 */ | |
2277 | wcs[wpos++] = c; | |
2278 | } else { | |
2279 | /* invalid utf-8 byte, non-printable unicode: convert to hex */ | |
2280 | static const char *hex = "0123456789abcdef"; | |
2281 | wcs[wpos++] = hex[c >> 4]; | |
2282 | if (wpos < wcslen) | |
2283 | wcs[wpos++] = hex[c & 0x0f]; | |
2284 | } | |
2285 | } | |
2286 | wcs[wpos] = 0; | |
2287 | return wpos; | |
2288 | } | |
2289 | ||
2290 | int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen) | |
2291 | { | |
2292 | if (!wcs || !utf || utflen < 1) { | |
2293 | errno = EINVAL; | |
2294 | return -1; | |
2295 | } | |
2296 | utflen = WideCharToMultiByte(CP_UTF8, 0, wcs, -1, utf, utflen, NULL, NULL); | |
2297 | if (utflen) | |
2298 | return utflen - 1; | |
2299 | errno = ERANGE; | |
2300 | return -1; | |
2301 | } | |
2302 | ||
0767172b | 2303 | static void setup_windows_environment(void) |
02e6edc0 | 2304 | { |
1fc7bf79 JS |
2305 | char *tmp = getenv("TMPDIR"); |
2306 | ||
02e6edc0 | 2307 | /* on Windows it is TMP and TEMP */ |
1fc7bf79 JS |
2308 | if (!tmp) { |
2309 | if (!(tmp = getenv("TMP"))) | |
02e6edc0 | 2310 | tmp = getenv("TEMP"); |
1fc7bf79 | 2311 | if (tmp) { |
02e6edc0 | 2312 | setenv("TMPDIR", tmp, 1); |
1fc7bf79 JS |
2313 | tmp = getenv("TMPDIR"); |
2314 | } | |
2315 | } | |
2316 | ||
2317 | if (tmp) { | |
2318 | /* | |
2319 | * Convert all dir separators to forward slashes, | |
2320 | * to help shell commands called from the Git | |
2321 | * executable (by not mistaking the dir separators | |
2322 | * for escape characters). | |
2323 | */ | |
8e9b2080 | 2324 | convert_slashes(tmp); |
02e6edc0 KB |
2325 | } |
2326 | ||
2327 | /* simulate TERM to enable auto-color (see color.c) */ | |
2328 | if (!getenv("TERM")) | |
2329 | setenv("TERM", "cygwin", 1); | |
2330 | } | |
2331 | ||
396ff754 | 2332 | #if !defined(_MSC_VER) |
5901dc66 KB |
2333 | /* |
2334 | * Disable MSVCRT command line wildcard expansion (__getmainargs called from | |
2335 | * mingw startup code, see init.c in mingw runtime). | |
2336 | */ | |
2337 | int _CRT_glob = 0; | |
396ff754 | 2338 | #endif |
3f046148 | 2339 | |
0767172b | 2340 | static NORETURN void die_startup(void) |
3f046148 KB |
2341 | { |
2342 | fputs("fatal: not enough memory for initialization", stderr); | |
2343 | exit(128); | |
2344 | } | |
2345 | ||
6f1c189c KB |
2346 | static void *malloc_startup(size_t size) |
2347 | { | |
2348 | void *result = malloc(size); | |
2349 | if (!result) | |
2350 | die_startup(); | |
2351 | return result; | |
2352 | } | |
2353 | ||
2354 | static char *wcstoutfdup_startup(char *buffer, const wchar_t *wcs, size_t len) | |
2355 | { | |
2356 | len = xwcstoutf(buffer, wcs, len) + 1; | |
2357 | return memcpy(malloc_startup(len), buffer, len); | |
2358 | } | |
2359 | ||
3f944424 JS |
2360 | static void maybe_redirect_std_handle(const wchar_t *key, DWORD std_id, int fd, |
2361 | DWORD desired_access, DWORD flags) | |
2362 | { | |
2363 | DWORD create_flag = fd ? OPEN_ALWAYS : OPEN_EXISTING; | |
2364 | wchar_t buf[MAX_PATH]; | |
2365 | DWORD max = ARRAY_SIZE(buf); | |
2366 | HANDLE handle; | |
2367 | DWORD ret = GetEnvironmentVariableW(key, buf, max); | |
2368 | ||
2369 | if (!ret || ret >= max) | |
2370 | return; | |
2371 | ||
2372 | /* make sure this does not leak into child processes */ | |
2373 | SetEnvironmentVariableW(key, NULL); | |
2374 | if (!wcscmp(buf, L"off")) { | |
2375 | close(fd); | |
2376 | handle = GetStdHandle(std_id); | |
2377 | if (handle != INVALID_HANDLE_VALUE) | |
2378 | CloseHandle(handle); | |
2379 | return; | |
2380 | } | |
1a172e4a JS |
2381 | if (std_id == STD_ERROR_HANDLE && !wcscmp(buf, L"2>&1")) { |
2382 | handle = GetStdHandle(STD_OUTPUT_HANDLE); | |
2383 | if (handle == INVALID_HANDLE_VALUE) { | |
2384 | close(fd); | |
2385 | handle = GetStdHandle(std_id); | |
2386 | if (handle != INVALID_HANDLE_VALUE) | |
2387 | CloseHandle(handle); | |
2388 | } else { | |
2389 | int new_fd = _open_osfhandle((intptr_t)handle, O_BINARY); | |
2390 | SetStdHandle(std_id, handle); | |
2391 | dup2(new_fd, fd); | |
2392 | /* do *not* close the new_fd: that would close stdout */ | |
2393 | } | |
2394 | return; | |
2395 | } | |
3f944424 JS |
2396 | handle = CreateFileW(buf, desired_access, 0, NULL, create_flag, |
2397 | flags, NULL); | |
2398 | if (handle != INVALID_HANDLE_VALUE) { | |
2399 | int new_fd = _open_osfhandle((intptr_t)handle, O_BINARY); | |
2400 | SetStdHandle(std_id, handle); | |
2401 | dup2(new_fd, fd); | |
2402 | close(new_fd); | |
2403 | } | |
2404 | } | |
2405 | ||
2406 | static void maybe_redirect_std_handles(void) | |
2407 | { | |
2408 | maybe_redirect_std_handle(L"GIT_REDIRECT_STDIN", STD_INPUT_HANDLE, 0, | |
2409 | GENERIC_READ, FILE_ATTRIBUTE_NORMAL); | |
2410 | maybe_redirect_std_handle(L"GIT_REDIRECT_STDOUT", STD_OUTPUT_HANDLE, 1, | |
2411 | GENERIC_WRITE, FILE_ATTRIBUTE_NORMAL); | |
2412 | maybe_redirect_std_handle(L"GIT_REDIRECT_STDERR", STD_ERROR_HANDLE, 2, | |
2413 | GENERIC_WRITE, FILE_FLAG_NO_BUFFERING); | |
2414 | } | |
2415 | ||
dce7d295 JH |
2416 | #ifdef _MSC_VER |
2417 | #ifdef _DEBUG | |
2418 | #include <crtdbg.h> | |
2419 | #endif | |
2420 | #endif | |
2421 | ||
396ff754 JS |
2422 | /* |
2423 | * We implement wmain() and compile with -municode, which would | |
2424 | * normally ignore main(), but we call the latter from the former | |
2425 | * so that we can handle non-ASCII command-line parameters | |
2426 | * appropriately. | |
2427 | * | |
2428 | * To be more compatible with the core git code, we convert | |
2429 | * argv into UTF8 and pass them directly to main(). | |
2430 | */ | |
2431 | int wmain(int argc, const wchar_t **wargv) | |
13f1df43 | 2432 | { |
396ff754 JS |
2433 | int i, maxlen, exit_status; |
2434 | char *buffer, **save; | |
2435 | const char **argv; | |
3f046148 | 2436 | |
a0897249 JH |
2437 | trace2_initialize_clock(); |
2438 | ||
556702f8 JH |
2439 | #ifdef _MSC_VER |
2440 | #ifdef USE_MSVC_CRTDBG | |
2441 | _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF); | |
2442 | #endif | |
2443 | #endif | |
2444 | ||
3f944424 JS |
2445 | maybe_redirect_std_handles(); |
2446 | ||
3f046148 | 2447 | /* determine size of argv and environ conversion buffer */ |
86e25458 | 2448 | maxlen = wcslen(wargv[0]); |
3f046148 KB |
2449 | for (i = 1; i < argc; i++) |
2450 | maxlen = max(maxlen, wcslen(wargv[i])); | |
2451 | ||
2452 | /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */ | |
2453 | maxlen = 3 * maxlen + 1; | |
6f1c189c | 2454 | buffer = malloc_startup(maxlen); |
3f046148 | 2455 | |
396ff754 JS |
2456 | /* |
2457 | * Create a UTF-8 version of w_argv. Also create a "save" copy | |
2458 | * to remember all the string pointers because parse_options() | |
2459 | * will remove claimed items from the argv that we pass down. | |
2460 | */ | |
2461 | ALLOC_ARRAY(argv, argc + 1); | |
2462 | ALLOC_ARRAY(save, argc + 1); | |
86e25458 | 2463 | for (i = 0; i < argc; i++) |
396ff754 JS |
2464 | argv[i] = save[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen); |
2465 | argv[i] = save[i] = NULL; | |
3f046148 | 2466 | free(buffer); |
13f1df43 | 2467 | |
6dc71543 | 2468 | /* fix Windows specific environment settings */ |
02e6edc0 | 2469 | setup_windows_environment(); |
baea068d | 2470 | |
0e218f91 JS |
2471 | unset_environment_variables = xstrdup("PERL5LIB"); |
2472 | ||
13f1df43 KB |
2473 | /* initialize critical section for waitpid pinfo_t list */ |
2474 | InitializeCriticalSection(&pinfo_cs); | |
2475 | ||
2476 | /* set up default file mode and file modes for stdin/out/err */ | |
2477 | _fmode = _O_BINARY; | |
2478 | _setmode(_fileno(stdin), _O_BINARY); | |
2479 | _setmode(_fileno(stdout), _O_BINARY); | |
2480 | _setmode(_fileno(stderr), _O_BINARY); | |
eac14f89 KB |
2481 | |
2482 | /* initialize Unicode console */ | |
2483 | winansi_init(); | |
396ff754 JS |
2484 | |
2485 | /* invoke the real main() using our utf8 version of argv. */ | |
2486 | exit_status = main(argc, argv); | |
2487 | ||
2488 | for (i = 0; i < argc; i++) | |
2489 | free(save[i]); | |
2490 | free(save); | |
2491 | free(argv); | |
2492 | ||
2493 | return exit_status; | |
13f1df43 | 2494 | } |
7b6aff06 NTND |
2495 | |
2496 | int uname(struct utsname *buf) | |
2497 | { | |
d62c89af | 2498 | unsigned v = (unsigned)GetVersion(); |
7b6aff06 | 2499 | memset(buf, 0, sizeof(*buf)); |
5096d490 JK |
2500 | xsnprintf(buf->sysname, sizeof(buf->sysname), "Windows"); |
2501 | xsnprintf(buf->release, sizeof(buf->release), | |
2502 | "%u.%u", v & 0xff, (v >> 8) & 0xff); | |
7b6aff06 | 2503 | /* assuming NT variants only.. */ |
5096d490 JK |
2504 | xsnprintf(buf->version, sizeof(buf->version), |
2505 | "%u", (v >> 16) & 0x7fff); | |
7b6aff06 NTND |
2506 | return 0; |
2507 | } |