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Commit | Line | Data |
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f4626df5 | 1 | #include "../git-compat-util.h" |
444dc903 | 2 | #include "win32.h" |
28a559c0 | 3 | #include <conio.h> |
7e5d7768 | 4 | #include "../strbuf.h" |
f4626df5 JS |
5 | |
6 | unsigned int _CRT_fmode = _O_BINARY; | |
7 | ||
b3debd2b PK |
8 | static int err_win_to_posix(DWORD winerr) |
9 | { | |
10 | int error = ENOSYS; | |
11 | switch(winerr) { | |
12 | case ERROR_ACCESS_DENIED: error = EACCES; break; | |
13 | case ERROR_ACCOUNT_DISABLED: error = EACCES; break; | |
14 | case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break; | |
15 | case ERROR_ALREADY_ASSIGNED: error = EBUSY; break; | |
16 | case ERROR_ALREADY_EXISTS: error = EEXIST; break; | |
17 | case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break; | |
18 | case ERROR_BAD_COMMAND: error = EIO; break; | |
19 | case ERROR_BAD_DEVICE: error = ENODEV; break; | |
20 | case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break; | |
21 | case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break; | |
22 | case ERROR_BAD_FORMAT: error = ENOEXEC; break; | |
23 | case ERROR_BAD_LENGTH: error = EINVAL; break; | |
24 | case ERROR_BAD_PATHNAME: error = ENOENT; break; | |
25 | case ERROR_BAD_PIPE: error = EPIPE; break; | |
26 | case ERROR_BAD_UNIT: error = ENODEV; break; | |
27 | case ERROR_BAD_USERNAME: error = EINVAL; break; | |
28 | case ERROR_BROKEN_PIPE: error = EPIPE; break; | |
29 | case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break; | |
30 | case ERROR_BUSY: error = EBUSY; break; | |
31 | case ERROR_BUSY_DRIVE: error = EBUSY; break; | |
32 | case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break; | |
33 | case ERROR_CANNOT_MAKE: error = EACCES; break; | |
34 | case ERROR_CANTOPEN: error = EIO; break; | |
35 | case ERROR_CANTREAD: error = EIO; break; | |
36 | case ERROR_CANTWRITE: error = EIO; break; | |
37 | case ERROR_CRC: error = EIO; break; | |
38 | case ERROR_CURRENT_DIRECTORY: error = EACCES; break; | |
39 | case ERROR_DEVICE_IN_USE: error = EBUSY; break; | |
40 | case ERROR_DEV_NOT_EXIST: error = ENODEV; break; | |
41 | case ERROR_DIRECTORY: error = EINVAL; break; | |
42 | case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break; | |
43 | case ERROR_DISK_CHANGE: error = EIO; break; | |
44 | case ERROR_DISK_FULL: error = ENOSPC; break; | |
45 | case ERROR_DRIVE_LOCKED: error = EBUSY; break; | |
46 | case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break; | |
47 | case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break; | |
48 | case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break; | |
49 | case ERROR_FILE_EXISTS: error = EEXIST; break; | |
50 | case ERROR_FILE_INVALID: error = ENODEV; break; | |
51 | case ERROR_FILE_NOT_FOUND: error = ENOENT; break; | |
52 | case ERROR_GEN_FAILURE: error = EIO; break; | |
53 | case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break; | |
54 | case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break; | |
55 | case ERROR_INVALID_ACCESS: error = EACCES; break; | |
56 | case ERROR_INVALID_ADDRESS: error = EFAULT; break; | |
57 | case ERROR_INVALID_BLOCK: error = EFAULT; break; | |
58 | case ERROR_INVALID_DATA: error = EINVAL; break; | |
59 | case ERROR_INVALID_DRIVE: error = ENODEV; break; | |
60 | case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break; | |
61 | case ERROR_INVALID_FLAGS: error = EINVAL; break; | |
62 | case ERROR_INVALID_FUNCTION: error = ENOSYS; break; | |
63 | case ERROR_INVALID_HANDLE: error = EBADF; break; | |
64 | case ERROR_INVALID_LOGON_HOURS: error = EACCES; break; | |
65 | case ERROR_INVALID_NAME: error = EINVAL; break; | |
66 | case ERROR_INVALID_OWNER: error = EINVAL; break; | |
67 | case ERROR_INVALID_PARAMETER: error = EINVAL; break; | |
68 | case ERROR_INVALID_PASSWORD: error = EPERM; break; | |
69 | case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break; | |
70 | case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break; | |
71 | case ERROR_INVALID_TARGET_HANDLE: error = EIO; break; | |
72 | case ERROR_INVALID_WORKSTATION: error = EACCES; break; | |
73 | case ERROR_IO_DEVICE: error = EIO; break; | |
74 | case ERROR_IO_INCOMPLETE: error = EINTR; break; | |
75 | case ERROR_LOCKED: error = EBUSY; break; | |
76 | case ERROR_LOCK_VIOLATION: error = EACCES; break; | |
77 | case ERROR_LOGON_FAILURE: error = EACCES; break; | |
78 | case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break; | |
79 | case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break; | |
80 | case ERROR_MORE_DATA: error = EPIPE; break; | |
81 | case ERROR_NEGATIVE_SEEK: error = ESPIPE; break; | |
82 | case ERROR_NOACCESS: error = EFAULT; break; | |
83 | case ERROR_NONE_MAPPED: error = EINVAL; break; | |
84 | case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break; | |
85 | case ERROR_NOT_READY: error = EAGAIN; break; | |
86 | case ERROR_NOT_SAME_DEVICE: error = EXDEV; break; | |
87 | case ERROR_NO_DATA: error = EPIPE; break; | |
88 | case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break; | |
89 | case ERROR_NO_PROC_SLOTS: error = EAGAIN; break; | |
90 | case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break; | |
91 | case ERROR_OPEN_FAILED: error = EIO; break; | |
92 | case ERROR_OPEN_FILES: error = EBUSY; break; | |
93 | case ERROR_OPERATION_ABORTED: error = EINTR; break; | |
94 | case ERROR_OUTOFMEMORY: error = ENOMEM; break; | |
95 | case ERROR_PASSWORD_EXPIRED: error = EACCES; break; | |
96 | case ERROR_PATH_BUSY: error = EBUSY; break; | |
97 | case ERROR_PATH_NOT_FOUND: error = ENOENT; break; | |
98 | case ERROR_PIPE_BUSY: error = EBUSY; break; | |
99 | case ERROR_PIPE_CONNECTED: error = EPIPE; break; | |
100 | case ERROR_PIPE_LISTENING: error = EPIPE; break; | |
101 | case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break; | |
102 | case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break; | |
103 | case ERROR_READ_FAULT: error = EIO; break; | |
104 | case ERROR_SEEK: error = EIO; break; | |
105 | case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break; | |
106 | case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break; | |
107 | case ERROR_SHARING_VIOLATION: error = EACCES; break; | |
108 | case ERROR_STACK_OVERFLOW: error = ENOMEM; break; | |
109 | case ERROR_SWAPERROR: error = ENOENT; break; | |
110 | case ERROR_TOO_MANY_MODULES: error = EMFILE; break; | |
111 | case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break; | |
112 | case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break; | |
113 | case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break; | |
114 | case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break; | |
115 | case ERROR_WRITE_FAULT: error = EIO; break; | |
116 | case ERROR_WRITE_PROTECT: error = EROFS; break; | |
117 | } | |
118 | return error; | |
119 | } | |
120 | ||
3e4a1ba0 JS |
121 | #undef open |
122 | int mingw_open (const char *filename, int oflags, ...) | |
123 | { | |
124 | va_list args; | |
125 | unsigned mode; | |
126 | va_start(args, oflags); | |
127 | mode = va_arg(args, int); | |
128 | va_end(args); | |
129 | ||
130 | if (!strcmp(filename, "/dev/null")) | |
131 | filename = "nul"; | |
132 | int fd = open(filename, oflags, mode); | |
133 | if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) { | |
134 | DWORD attrs = GetFileAttributes(filename); | |
135 | if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY)) | |
136 | errno = EISDIR; | |
137 | } | |
138 | return fd; | |
139 | } | |
140 | ||
5411bdc4 MSO |
141 | static inline time_t filetime_to_time_t(const FILETIME *ft) |
142 | { | |
143 | long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime; | |
144 | winTime -= 116444736000000000LL; /* Windows to Unix Epoch conversion */ | |
145 | winTime /= 10000000; /* Nano to seconds resolution */ | |
146 | return (time_t)winTime; | |
147 | } | |
148 | ||
5411bdc4 MSO |
149 | /* We keep the do_lstat code in a separate function to avoid recursion. |
150 | * When a path ends with a slash, the stat will fail with ENOENT. In | |
151 | * this case, we strip the trailing slashes and stat again. | |
152 | */ | |
153 | static int do_lstat(const char *file_name, struct stat *buf) | |
154 | { | |
155 | WIN32_FILE_ATTRIBUTE_DATA fdata; | |
156 | ||
444dc903 | 157 | if (!(errno = get_file_attr(file_name, &fdata))) { |
5411bdc4 MSO |
158 | buf->st_ino = 0; |
159 | buf->st_gid = 0; | |
160 | buf->st_uid = 0; | |
180964f0 | 161 | buf->st_nlink = 1; |
444dc903 | 162 | buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes); |
1d4e4cd4 JS |
163 | buf->st_size = fdata.nFileSizeLow | |
164 | (((off_t)fdata.nFileSizeHigh)<<32); | |
8252df62 | 165 | buf->st_dev = buf->st_rdev = 0; /* not used by Git */ |
5411bdc4 MSO |
166 | buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime)); |
167 | buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime)); | |
168 | buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime)); | |
5411bdc4 MSO |
169 | return 0; |
170 | } | |
5411bdc4 MSO |
171 | return -1; |
172 | } | |
173 | ||
174 | /* We provide our own lstat/fstat functions, since the provided | |
175 | * lstat/fstat functions are so slow. These stat functions are | |
176 | * tailored for Git's usage (read: fast), and are not meant to be | |
177 | * complete. Note that Git stat()s are redirected to mingw_lstat() | |
178 | * too, since Windows doesn't really handle symlinks that well. | |
179 | */ | |
180964f0 | 180 | int mingw_lstat(const char *file_name, struct stat *buf) |
5411bdc4 MSO |
181 | { |
182 | int namelen; | |
183 | static char alt_name[PATH_MAX]; | |
184 | ||
185 | if (!do_lstat(file_name, buf)) | |
186 | return 0; | |
187 | ||
188 | /* if file_name ended in a '/', Windows returned ENOENT; | |
189 | * try again without trailing slashes | |
190 | */ | |
191 | if (errno != ENOENT) | |
192 | return -1; | |
193 | ||
194 | namelen = strlen(file_name); | |
195 | if (namelen && file_name[namelen-1] != '/') | |
196 | return -1; | |
197 | while (namelen && file_name[namelen-1] == '/') | |
198 | --namelen; | |
199 | if (!namelen || namelen >= PATH_MAX) | |
200 | return -1; | |
201 | ||
202 | memcpy(alt_name, file_name, namelen); | |
203 | alt_name[namelen] = 0; | |
204 | return do_lstat(alt_name, buf); | |
205 | } | |
206 | ||
207 | #undef fstat | |
180964f0 | 208 | int mingw_fstat(int fd, struct stat *buf) |
5411bdc4 MSO |
209 | { |
210 | HANDLE fh = (HANDLE)_get_osfhandle(fd); | |
211 | BY_HANDLE_FILE_INFORMATION fdata; | |
212 | ||
213 | if (fh == INVALID_HANDLE_VALUE) { | |
214 | errno = EBADF; | |
215 | return -1; | |
216 | } | |
217 | /* direct non-file handles to MS's fstat() */ | |
180964f0 | 218 | if (GetFileType(fh) != FILE_TYPE_DISK) |
1d4e4cd4 | 219 | return _fstati64(fd, buf); |
5411bdc4 MSO |
220 | |
221 | if (GetFileInformationByHandle(fh, &fdata)) { | |
5411bdc4 MSO |
222 | buf->st_ino = 0; |
223 | buf->st_gid = 0; | |
224 | buf->st_uid = 0; | |
180964f0 | 225 | buf->st_nlink = 1; |
444dc903 | 226 | buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes); |
1d4e4cd4 JS |
227 | buf->st_size = fdata.nFileSizeLow | |
228 | (((off_t)fdata.nFileSizeHigh)<<32); | |
8252df62 | 229 | buf->st_dev = buf->st_rdev = 0; /* not used by Git */ |
5411bdc4 MSO |
230 | buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime)); |
231 | buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime)); | |
232 | buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime)); | |
233 | return 0; | |
234 | } | |
235 | errno = EBADF; | |
236 | return -1; | |
237 | } | |
238 | ||
7c0ffa1c JS |
239 | static inline void time_t_to_filetime(time_t t, FILETIME *ft) |
240 | { | |
241 | long long winTime = t * 10000000LL + 116444736000000000LL; | |
242 | ft->dwLowDateTime = winTime; | |
243 | ft->dwHighDateTime = winTime >> 32; | |
244 | } | |
245 | ||
246 | int mingw_utime (const char *file_name, const struct utimbuf *times) | |
247 | { | |
248 | FILETIME mft, aft; | |
249 | int fh, rc; | |
250 | ||
251 | /* must have write permission */ | |
252 | if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0) | |
253 | return -1; | |
254 | ||
255 | time_t_to_filetime(times->modtime, &mft); | |
256 | time_t_to_filetime(times->actime, &aft); | |
257 | if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) { | |
258 | errno = EINVAL; | |
259 | rc = -1; | |
260 | } else | |
261 | rc = 0; | |
262 | close(fh); | |
263 | return rc; | |
264 | } | |
265 | ||
f4626df5 JS |
266 | unsigned int sleep (unsigned int seconds) |
267 | { | |
268 | Sleep(seconds*1000); | |
269 | return 0; | |
270 | } | |
271 | ||
272 | int mkstemp(char *template) | |
273 | { | |
274 | char *filename = mktemp(template); | |
275 | if (filename == NULL) | |
276 | return -1; | |
277 | return open(filename, O_RDWR | O_CREAT, 0600); | |
278 | } | |
279 | ||
280 | int gettimeofday(struct timeval *tv, void *tz) | |
281 | { | |
a42a0c2e JS |
282 | SYSTEMTIME st; |
283 | struct tm tm; | |
284 | GetSystemTime(&st); | |
285 | tm.tm_year = st.wYear-1900; | |
286 | tm.tm_mon = st.wMonth-1; | |
287 | tm.tm_mday = st.wDay; | |
288 | tm.tm_hour = st.wHour; | |
289 | tm.tm_min = st.wMinute; | |
290 | tm.tm_sec = st.wSecond; | |
291 | tv->tv_sec = tm_to_time_t(&tm); | |
292 | if (tv->tv_sec < 0) | |
293 | return -1; | |
294 | tv->tv_usec = st.wMilliseconds*1000; | |
295 | return 0; | |
f4626df5 JS |
296 | } |
297 | ||
897bb8cb JS |
298 | int pipe(int filedes[2]) |
299 | { | |
300 | int fd; | |
301 | HANDLE h[2], parent; | |
302 | ||
303 | if (_pipe(filedes, 8192, 0) < 0) | |
304 | return -1; | |
305 | ||
306 | parent = GetCurrentProcess(); | |
307 | ||
308 | if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[0]), | |
309 | parent, &h[0], 0, FALSE, DUPLICATE_SAME_ACCESS)) { | |
310 | close(filedes[0]); | |
311 | close(filedes[1]); | |
312 | return -1; | |
313 | } | |
314 | if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[1]), | |
315 | parent, &h[1], 0, FALSE, DUPLICATE_SAME_ACCESS)) { | |
316 | close(filedes[0]); | |
317 | close(filedes[1]); | |
318 | CloseHandle(h[0]); | |
319 | return -1; | |
320 | } | |
321 | fd = _open_osfhandle((int)h[0], O_NOINHERIT); | |
322 | if (fd < 0) { | |
323 | close(filedes[0]); | |
324 | close(filedes[1]); | |
325 | CloseHandle(h[0]); | |
326 | CloseHandle(h[1]); | |
327 | return -1; | |
328 | } | |
329 | close(filedes[0]); | |
330 | filedes[0] = fd; | |
331 | fd = _open_osfhandle((int)h[1], O_NOINHERIT); | |
332 | if (fd < 0) { | |
333 | close(filedes[0]); | |
334 | close(filedes[1]); | |
335 | CloseHandle(h[1]); | |
336 | return -1; | |
337 | } | |
338 | close(filedes[1]); | |
339 | filedes[1] = fd; | |
340 | return 0; | |
341 | } | |
342 | ||
f4626df5 JS |
343 | int poll(struct pollfd *ufds, unsigned int nfds, int timeout) |
344 | { | |
6ed807f8 JS |
345 | int i, pending; |
346 | ||
d317851a JS |
347 | if (timeout >= 0) { |
348 | if (nfds == 0) { | |
349 | Sleep(timeout); | |
350 | return 0; | |
351 | } | |
6ed807f8 | 352 | return errno = EINVAL, error("poll timeout not supported"); |
d317851a | 353 | } |
6ed807f8 JS |
354 | |
355 | /* When there is only one fd to wait for, then we pretend that | |
356 | * input is available and let the actual wait happen when the | |
357 | * caller invokes read(). | |
358 | */ | |
359 | if (nfds == 1) { | |
360 | if (!(ufds[0].events & POLLIN)) | |
361 | return errno = EINVAL, error("POLLIN not set"); | |
362 | ufds[0].revents = POLLIN; | |
363 | return 0; | |
364 | } | |
365 | ||
366 | repeat: | |
367 | pending = 0; | |
368 | for (i = 0; i < nfds; i++) { | |
369 | DWORD avail = 0; | |
370 | HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd); | |
371 | if (h == INVALID_HANDLE_VALUE) | |
372 | return -1; /* errno was set */ | |
373 | ||
374 | if (!(ufds[i].events & POLLIN)) | |
375 | return errno = EINVAL, error("POLLIN not set"); | |
376 | ||
377 | /* this emulation works only for pipes */ | |
378 | if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) { | |
379 | int err = GetLastError(); | |
380 | if (err == ERROR_BROKEN_PIPE) { | |
381 | ufds[i].revents = POLLHUP; | |
382 | pending++; | |
383 | } else { | |
384 | errno = EINVAL; | |
385 | return error("PeekNamedPipe failed," | |
386 | " GetLastError: %u", err); | |
387 | } | |
388 | } else if (avail) { | |
389 | ufds[i].revents = POLLIN; | |
390 | pending++; | |
391 | } else | |
392 | ufds[i].revents = 0; | |
393 | } | |
394 | if (!pending) { | |
395 | /* The only times that we spin here is when the process | |
396 | * that is connected through the pipes is waiting for | |
397 | * its own input data to become available. But since | |
398 | * the process (pack-objects) is itself CPU intensive, | |
399 | * it will happily pick up the time slice that we are | |
3ea3c215 | 400 | * relinquishing here. |
6ed807f8 JS |
401 | */ |
402 | Sleep(0); | |
403 | goto repeat; | |
404 | } | |
405 | return 0; | |
f4626df5 JS |
406 | } |
407 | ||
408 | struct tm *gmtime_r(const time_t *timep, struct tm *result) | |
409 | { | |
410 | /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */ | |
411 | memcpy(result, gmtime(timep), sizeof(struct tm)); | |
412 | return result; | |
413 | } | |
414 | ||
415 | struct tm *localtime_r(const time_t *timep, struct tm *result) | |
416 | { | |
417 | /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */ | |
418 | memcpy(result, localtime(timep), sizeof(struct tm)); | |
419 | return result; | |
420 | } | |
421 | ||
25fe217b JS |
422 | #undef getcwd |
423 | char *mingw_getcwd(char *pointer, int len) | |
424 | { | |
425 | int i; | |
426 | char *ret = getcwd(pointer, len); | |
427 | if (!ret) | |
428 | return ret; | |
429 | for (i = 0; pointer[i]; i++) | |
430 | if (pointer[i] == '\\') | |
431 | pointer[i] = '/'; | |
432 | return ret; | |
433 | } | |
434 | ||
6fd6aec4 JS |
435 | #undef getenv |
436 | char *mingw_getenv(const char *name) | |
437 | { | |
438 | char *result = getenv(name); | |
439 | if (!result && !strcmp(name, "TMPDIR")) { | |
440 | /* on Windows it is TMP and TEMP */ | |
441 | result = getenv("TMP"); | |
442 | if (!result) | |
443 | result = getenv("TEMP"); | |
444 | } | |
445 | return result; | |
446 | } | |
447 | ||
7e5d7768 JS |
448 | /* |
449 | * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx | |
450 | * (Parsing C++ Command-Line Arguments) | |
451 | */ | |
452 | static const char *quote_arg(const char *arg) | |
453 | { | |
454 | /* count chars to quote */ | |
455 | int len = 0, n = 0; | |
456 | int force_quotes = 0; | |
457 | char *q, *d; | |
458 | const char *p = arg; | |
459 | if (!*p) force_quotes = 1; | |
460 | while (*p) { | |
3aea1a5a | 461 | if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'') |
7e5d7768 JS |
462 | force_quotes = 1; |
463 | else if (*p == '"') | |
464 | n++; | |
465 | else if (*p == '\\') { | |
466 | int count = 0; | |
467 | while (*p == '\\') { | |
468 | count++; | |
469 | p++; | |
470 | len++; | |
471 | } | |
472 | if (*p == '"') | |
473 | n += count*2 + 1; | |
474 | continue; | |
475 | } | |
476 | len++; | |
477 | p++; | |
478 | } | |
479 | if (!force_quotes && n == 0) | |
480 | return arg; | |
481 | ||
482 | /* insert \ where necessary */ | |
483 | d = q = xmalloc(len+n+3); | |
484 | *d++ = '"'; | |
485 | while (*arg) { | |
486 | if (*arg == '"') | |
487 | *d++ = '\\'; | |
488 | else if (*arg == '\\') { | |
489 | int count = 0; | |
490 | while (*arg == '\\') { | |
491 | count++; | |
492 | *d++ = *arg++; | |
493 | } | |
494 | if (*arg == '"') { | |
495 | while (count-- > 0) | |
496 | *d++ = '\\'; | |
497 | *d++ = '\\'; | |
498 | } | |
499 | } | |
500 | *d++ = *arg++; | |
501 | } | |
502 | *d++ = '"'; | |
503 | *d++ = 0; | |
504 | return q; | |
505 | } | |
506 | ||
f1a4dfb8 JS |
507 | static const char *parse_interpreter(const char *cmd) |
508 | { | |
509 | static char buf[100]; | |
510 | char *p, *opt; | |
511 | int n, fd; | |
512 | ||
513 | /* don't even try a .exe */ | |
514 | n = strlen(cmd); | |
515 | if (n >= 4 && !strcasecmp(cmd+n-4, ".exe")) | |
516 | return NULL; | |
517 | ||
518 | fd = open(cmd, O_RDONLY); | |
519 | if (fd < 0) | |
520 | return NULL; | |
521 | n = read(fd, buf, sizeof(buf)-1); | |
522 | close(fd); | |
523 | if (n < 4) /* at least '#!/x' and not error */ | |
524 | return NULL; | |
525 | ||
526 | if (buf[0] != '#' || buf[1] != '!') | |
527 | return NULL; | |
528 | buf[n] = '\0'; | |
bedc4279 PH |
529 | p = buf + strcspn(buf, "\r\n"); |
530 | if (!*p) | |
f1a4dfb8 JS |
531 | return NULL; |
532 | ||
533 | *p = '\0'; | |
534 | if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\'))) | |
535 | return NULL; | |
536 | /* strip options */ | |
537 | if ((opt = strchr(p+1, ' '))) | |
538 | *opt = '\0'; | |
539 | return p+1; | |
540 | } | |
541 | ||
542 | /* | |
543 | * Splits the PATH into parts. | |
544 | */ | |
545 | static char **get_path_split(void) | |
546 | { | |
547 | char *p, **path, *envpath = getenv("PATH"); | |
548 | int i, n = 0; | |
549 | ||
550 | if (!envpath || !*envpath) | |
551 | return NULL; | |
552 | ||
553 | envpath = xstrdup(envpath); | |
554 | p = envpath; | |
555 | while (p) { | |
556 | char *dir = p; | |
557 | p = strchr(p, ';'); | |
558 | if (p) *p++ = '\0'; | |
559 | if (*dir) { /* not earlier, catches series of ; */ | |
560 | ++n; | |
561 | } | |
562 | } | |
563 | if (!n) | |
564 | return NULL; | |
565 | ||
4b25d091 | 566 | path = xmalloc((n+1)*sizeof(char *)); |
f1a4dfb8 JS |
567 | p = envpath; |
568 | i = 0; | |
569 | do { | |
570 | if (*p) | |
571 | path[i++] = xstrdup(p); | |
572 | p = p+strlen(p)+1; | |
573 | } while (i < n); | |
574 | path[i] = NULL; | |
575 | ||
576 | free(envpath); | |
577 | ||
578 | return path; | |
579 | } | |
580 | ||
581 | static void free_path_split(char **path) | |
582 | { | |
583 | if (!path) | |
584 | return; | |
585 | ||
586 | char **p = path; | |
587 | while (*p) | |
588 | free(*p++); | |
589 | free(path); | |
590 | } | |
591 | ||
592 | /* | |
593 | * exe_only means that we only want to detect .exe files, but not scripts | |
594 | * (which do not have an extension) | |
595 | */ | |
596 | static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only) | |
597 | { | |
598 | char path[MAX_PATH]; | |
599 | snprintf(path, sizeof(path), "%s/%s.exe", dir, cmd); | |
600 | ||
601 | if (!isexe && access(path, F_OK) == 0) | |
602 | return xstrdup(path); | |
603 | path[strlen(path)-4] = '\0'; | |
604 | if ((!exe_only || isexe) && access(path, F_OK) == 0) | |
fe77b695 ER |
605 | if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY)) |
606 | return xstrdup(path); | |
f1a4dfb8 JS |
607 | return NULL; |
608 | } | |
609 | ||
610 | /* | |
611 | * Determines the absolute path of cmd using the the split path in path. | |
612 | * If cmd contains a slash or backslash, no lookup is performed. | |
613 | */ | |
614 | static char *path_lookup(const char *cmd, char **path, int exe_only) | |
615 | { | |
616 | char *prog = NULL; | |
617 | int len = strlen(cmd); | |
618 | int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe"); | |
619 | ||
620 | if (strchr(cmd, '/') || strchr(cmd, '\\')) | |
621 | prog = xstrdup(cmd); | |
622 | ||
623 | while (!prog && *path) | |
624 | prog = lookup_prog(*path++, cmd, isexe, exe_only); | |
625 | ||
626 | return prog; | |
627 | } | |
628 | ||
7e5d7768 JS |
629 | static int env_compare(const void *a, const void *b) |
630 | { | |
631 | char *const *ea = a; | |
632 | char *const *eb = b; | |
633 | return strcasecmp(*ea, *eb); | |
634 | } | |
635 | ||
636 | static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env, | |
637 | int prepend_cmd) | |
638 | { | |
639 | STARTUPINFO si; | |
640 | PROCESS_INFORMATION pi; | |
641 | struct strbuf envblk, args; | |
642 | unsigned flags; | |
643 | BOOL ret; | |
644 | ||
645 | /* Determine whether or not we are associated to a console */ | |
646 | HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE, | |
647 | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, | |
648 | FILE_ATTRIBUTE_NORMAL, NULL); | |
649 | if (cons == INVALID_HANDLE_VALUE) { | |
650 | /* There is no console associated with this process. | |
651 | * Since the child is a console process, Windows | |
652 | * would normally create a console window. But | |
653 | * since we'll be redirecting std streams, we do | |
654 | * not need the console. | |
19fb896f AG |
655 | * It is necessary to use DETACHED_PROCESS |
656 | * instead of CREATE_NO_WINDOW to make ssh | |
657 | * recognize that it has no console. | |
7e5d7768 | 658 | */ |
19fb896f | 659 | flags = DETACHED_PROCESS; |
7e5d7768 JS |
660 | } else { |
661 | /* There is already a console. If we specified | |
19fb896f | 662 | * DETACHED_PROCESS here, too, Windows would |
7e5d7768 | 663 | * disassociate the child from the console. |
19fb896f | 664 | * The same is true for CREATE_NO_WINDOW. |
7e5d7768 JS |
665 | * Go figure! |
666 | */ | |
667 | flags = 0; | |
668 | CloseHandle(cons); | |
669 | } | |
670 | memset(&si, 0, sizeof(si)); | |
671 | si.cb = sizeof(si); | |
672 | si.dwFlags = STARTF_USESTDHANDLES; | |
673 | si.hStdInput = (HANDLE) _get_osfhandle(0); | |
674 | si.hStdOutput = (HANDLE) _get_osfhandle(1); | |
675 | si.hStdError = (HANDLE) _get_osfhandle(2); | |
676 | ||
677 | /* concatenate argv, quoting args as we go */ | |
678 | strbuf_init(&args, 0); | |
679 | if (prepend_cmd) { | |
680 | char *quoted = (char *)quote_arg(cmd); | |
681 | strbuf_addstr(&args, quoted); | |
682 | if (quoted != cmd) | |
683 | free(quoted); | |
684 | } | |
685 | for (; *argv; argv++) { | |
686 | char *quoted = (char *)quote_arg(*argv); | |
687 | if (*args.buf) | |
688 | strbuf_addch(&args, ' '); | |
689 | strbuf_addstr(&args, quoted); | |
690 | if (quoted != *argv) | |
691 | free(quoted); | |
692 | } | |
693 | ||
694 | if (env) { | |
695 | int count = 0; | |
696 | char **e, **sorted_env; | |
697 | ||
698 | for (e = env; *e; e++) | |
699 | count++; | |
700 | ||
701 | /* environment must be sorted */ | |
702 | sorted_env = xmalloc(sizeof(*sorted_env) * (count + 1)); | |
703 | memcpy(sorted_env, env, sizeof(*sorted_env) * (count + 1)); | |
704 | qsort(sorted_env, count, sizeof(*sorted_env), env_compare); | |
705 | ||
706 | strbuf_init(&envblk, 0); | |
707 | for (e = sorted_env; *e; e++) { | |
708 | strbuf_addstr(&envblk, *e); | |
709 | strbuf_addch(&envblk, '\0'); | |
710 | } | |
711 | free(sorted_env); | |
712 | } | |
713 | ||
714 | memset(&pi, 0, sizeof(pi)); | |
715 | ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags, | |
716 | env ? envblk.buf : NULL, NULL, &si, &pi); | |
717 | ||
718 | if (env) | |
719 | strbuf_release(&envblk); | |
720 | strbuf_release(&args); | |
721 | ||
722 | if (!ret) { | |
723 | errno = ENOENT; | |
724 | return -1; | |
725 | } | |
726 | CloseHandle(pi.hThread); | |
727 | return (pid_t)pi.hProcess; | |
728 | } | |
729 | ||
730 | pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env) | |
731 | { | |
732 | pid_t pid; | |
733 | char **path = get_path_split(); | |
734 | char *prog = path_lookup(cmd, path, 0); | |
735 | ||
736 | if (!prog) { | |
737 | errno = ENOENT; | |
738 | pid = -1; | |
739 | } | |
740 | else { | |
741 | const char *interpr = parse_interpreter(prog); | |
742 | ||
743 | if (interpr) { | |
744 | const char *argv0 = argv[0]; | |
745 | char *iprog = path_lookup(interpr, path, 1); | |
746 | argv[0] = prog; | |
747 | if (!iprog) { | |
748 | errno = ENOENT; | |
749 | pid = -1; | |
750 | } | |
751 | else { | |
752 | pid = mingw_spawnve(iprog, argv, env, 1); | |
753 | free(iprog); | |
754 | } | |
755 | argv[0] = argv0; | |
756 | } | |
757 | else | |
758 | pid = mingw_spawnve(prog, argv, env, 0); | |
759 | free(prog); | |
760 | } | |
761 | free_path_split(path); | |
762 | return pid; | |
763 | } | |
764 | ||
f1a4dfb8 JS |
765 | static int try_shell_exec(const char *cmd, char *const *argv, char **env) |
766 | { | |
767 | const char *interpr = parse_interpreter(cmd); | |
768 | char **path; | |
769 | char *prog; | |
770 | int pid = 0; | |
771 | ||
772 | if (!interpr) | |
773 | return 0; | |
774 | path = get_path_split(); | |
775 | prog = path_lookup(interpr, path, 1); | |
776 | if (prog) { | |
777 | int argc = 0; | |
778 | const char **argv2; | |
779 | while (argv[argc]) argc++; | |
7e5d7768 JS |
780 | argv2 = xmalloc(sizeof(*argv) * (argc+1)); |
781 | argv2[0] = (char *)cmd; /* full path to the script file */ | |
782 | memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc); | |
783 | pid = mingw_spawnve(prog, argv2, env, 1); | |
f1a4dfb8 JS |
784 | if (pid >= 0) { |
785 | int status; | |
786 | if (waitpid(pid, &status, 0) < 0) | |
787 | status = 255; | |
788 | exit(status); | |
789 | } | |
790 | pid = 1; /* indicate that we tried but failed */ | |
791 | free(prog); | |
792 | free(argv2); | |
793 | } | |
794 | free_path_split(path); | |
795 | return pid; | |
796 | } | |
797 | ||
798 | static void mingw_execve(const char *cmd, char *const *argv, char *const *env) | |
799 | { | |
800 | /* check if git_command is a shell script */ | |
801 | if (!try_shell_exec(cmd, argv, (char **)env)) { | |
802 | int pid, status; | |
803 | ||
7e5d7768 | 804 | pid = mingw_spawnve(cmd, (const char **)argv, (char **)env, 0); |
f1a4dfb8 JS |
805 | if (pid < 0) |
806 | return; | |
807 | if (waitpid(pid, &status, 0) < 0) | |
808 | status = 255; | |
809 | exit(status); | |
810 | } | |
811 | } | |
812 | ||
813 | void mingw_execvp(const char *cmd, char *const *argv) | |
814 | { | |
815 | char **path = get_path_split(); | |
816 | char *prog = path_lookup(cmd, path, 0); | |
817 | ||
818 | if (prog) { | |
819 | mingw_execve(prog, argv, environ); | |
820 | free(prog); | |
821 | } else | |
822 | errno = ENOENT; | |
823 | ||
824 | free_path_split(path); | |
825 | } | |
826 | ||
ba26f296 JS |
827 | char **copy_environ() |
828 | { | |
829 | char **env; | |
830 | int i = 0; | |
831 | while (environ[i]) | |
832 | i++; | |
833 | env = xmalloc((i+1)*sizeof(*env)); | |
834 | for (i = 0; environ[i]; i++) | |
835 | env[i] = xstrdup(environ[i]); | |
836 | env[i] = NULL; | |
837 | return env; | |
838 | } | |
839 | ||
840 | void free_environ(char **env) | |
841 | { | |
842 | int i; | |
843 | for (i = 0; env[i]; i++) | |
844 | free(env[i]); | |
845 | free(env); | |
846 | } | |
847 | ||
848 | static int lookup_env(char **env, const char *name, size_t nmln) | |
849 | { | |
850 | int i; | |
851 | ||
852 | for (i = 0; env[i]; i++) { | |
853 | if (0 == strncmp(env[i], name, nmln) | |
854 | && '=' == env[i][nmln]) | |
855 | /* matches */ | |
856 | return i; | |
857 | } | |
858 | return -1; | |
859 | } | |
860 | ||
861 | /* | |
862 | * If name contains '=', then sets the variable, otherwise it unsets it | |
863 | */ | |
864 | char **env_setenv(char **env, const char *name) | |
865 | { | |
866 | char *eq = strchrnul(name, '='); | |
867 | int i = lookup_env(env, name, eq-name); | |
868 | ||
869 | if (i < 0) { | |
870 | if (*eq) { | |
871 | for (i = 0; env[i]; i++) | |
872 | ; | |
873 | env = xrealloc(env, (i+2)*sizeof(*env)); | |
874 | env[i] = xstrdup(name); | |
875 | env[i+1] = NULL; | |
876 | } | |
877 | } | |
878 | else { | |
879 | free(env[i]); | |
880 | if (*eq) | |
881 | env[i] = xstrdup(name); | |
882 | else | |
883 | for (; env[i]; i++) | |
884 | env[i] = env[i+1]; | |
885 | } | |
886 | return env; | |
887 | } | |
888 | ||
746fb857 JS |
889 | /* this is the first function to call into WS_32; initialize it */ |
890 | #undef gethostbyname | |
891 | struct hostent *mingw_gethostbyname(const char *host) | |
892 | { | |
893 | WSADATA wsa; | |
894 | ||
895 | if (WSAStartup(MAKEWORD(2,2), &wsa)) | |
896 | die("unable to initialize winsock subsystem, error %d", | |
897 | WSAGetLastError()); | |
898 | atexit((void(*)(void)) WSACleanup); | |
899 | return gethostbyname(host); | |
900 | } | |
901 | ||
902 | int mingw_socket(int domain, int type, int protocol) | |
903 | { | |
904 | int sockfd; | |
905 | SOCKET s = WSASocket(domain, type, protocol, NULL, 0, 0); | |
906 | if (s == INVALID_SOCKET) { | |
907 | /* | |
908 | * WSAGetLastError() values are regular BSD error codes | |
909 | * biased by WSABASEERR. | |
910 | * However, strerror() does not know about networking | |
911 | * specific errors, which are values beginning at 38 or so. | |
912 | * Therefore, we choose to leave the biased error code | |
913 | * in errno so that _if_ someone looks up the code somewhere, | |
914 | * then it is at least the number that are usually listed. | |
915 | */ | |
916 | errno = WSAGetLastError(); | |
917 | return -1; | |
918 | } | |
919 | /* convert into a file descriptor */ | |
920 | if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) { | |
921 | closesocket(s); | |
922 | return error("unable to make a socket file descriptor: %s", | |
923 | strerror(errno)); | |
924 | } | |
925 | return sockfd; | |
926 | } | |
927 | ||
928 | #undef connect | |
929 | int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz) | |
930 | { | |
931 | SOCKET s = (SOCKET)_get_osfhandle(sockfd); | |
932 | return connect(s, sa, sz); | |
933 | } | |
934 | ||
ea9e98c3 JS |
935 | #undef rename |
936 | int mingw_rename(const char *pold, const char *pnew) | |
937 | { | |
6ac6f878 JS |
938 | DWORD attrs, gle; |
939 | int tries = 0; | |
940 | static const int delay[] = { 0, 1, 10, 20, 40 }; | |
632f7017 | 941 | |
ea9e98c3 JS |
942 | /* |
943 | * Try native rename() first to get errno right. | |
944 | * It is based on MoveFile(), which cannot overwrite existing files. | |
945 | */ | |
946 | if (!rename(pold, pnew)) | |
947 | return 0; | |
948 | if (errno != EEXIST) | |
949 | return -1; | |
6ac6f878 | 950 | repeat: |
ea9e98c3 JS |
951 | if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING)) |
952 | return 0; | |
953 | /* TODO: translate more errors */ | |
6ac6f878 JS |
954 | gle = GetLastError(); |
955 | if (gle == ERROR_ACCESS_DENIED && | |
632f7017 JS |
956 | (attrs = GetFileAttributes(pnew)) != INVALID_FILE_ATTRIBUTES) { |
957 | if (attrs & FILE_ATTRIBUTE_DIRECTORY) { | |
ea9e98c3 JS |
958 | errno = EISDIR; |
959 | return -1; | |
960 | } | |
632f7017 JS |
961 | if ((attrs & FILE_ATTRIBUTE_READONLY) && |
962 | SetFileAttributes(pnew, attrs & ~FILE_ATTRIBUTE_READONLY)) { | |
963 | if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING)) | |
964 | return 0; | |
6ac6f878 | 965 | gle = GetLastError(); |
632f7017 JS |
966 | /* revert file attributes on failure */ |
967 | SetFileAttributes(pnew, attrs); | |
968 | } | |
ea9e98c3 | 969 | } |
6ac6f878 JS |
970 | if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) { |
971 | /* | |
972 | * We assume that some other process had the source or | |
973 | * destination file open at the wrong moment and retry. | |
974 | * In order to give the other process a higher chance to | |
975 | * complete its operation, we give up our time slice now. | |
976 | * If we have to retry again, we do sleep a bit. | |
977 | */ | |
978 | Sleep(delay[tries]); | |
979 | tries++; | |
980 | goto repeat; | |
981 | } | |
ea9e98c3 JS |
982 | errno = EACCES; |
983 | return -1; | |
984 | } | |
985 | ||
f4626df5 JS |
986 | struct passwd *getpwuid(int uid) |
987 | { | |
f7597aca | 988 | static char user_name[100]; |
f4626df5 | 989 | static struct passwd p; |
f7597aca JS |
990 | |
991 | DWORD len = sizeof(user_name); | |
992 | if (!GetUserName(user_name, &len)) | |
993 | return NULL; | |
994 | p.pw_name = user_name; | |
995 | p.pw_gecos = "unknown"; | |
996 | p.pw_dir = NULL; | |
f4626df5 JS |
997 | return &p; |
998 | } | |
999 | ||
6072fc31 JS |
1000 | static HANDLE timer_event; |
1001 | static HANDLE timer_thread; | |
1002 | static int timer_interval; | |
1003 | static int one_shot; | |
1004 | static sig_handler_t timer_fn = SIG_DFL; | |
1005 | ||
1006 | /* The timer works like this: | |
1007 | * The thread, ticktack(), is a trivial routine that most of the time | |
1008 | * only waits to receive the signal to terminate. The main thread tells | |
1009 | * the thread to terminate by setting the timer_event to the signalled | |
1010 | * state. | |
1011 | * But ticktack() interrupts the wait state after the timer's interval | |
1012 | * length to call the signal handler. | |
1013 | */ | |
1014 | ||
1015 | static __stdcall unsigned ticktack(void *dummy) | |
1016 | { | |
1017 | while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) { | |
1018 | if (timer_fn == SIG_DFL) | |
1019 | die("Alarm"); | |
1020 | if (timer_fn != SIG_IGN) | |
1021 | timer_fn(SIGALRM); | |
1022 | if (one_shot) | |
1023 | break; | |
1024 | } | |
1025 | return 0; | |
1026 | } | |
1027 | ||
1028 | static int start_timer_thread(void) | |
1029 | { | |
1030 | timer_event = CreateEvent(NULL, FALSE, FALSE, NULL); | |
1031 | if (timer_event) { | |
1032 | timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL); | |
1033 | if (!timer_thread ) | |
1034 | return errno = ENOMEM, | |
1035 | error("cannot start timer thread"); | |
1036 | } else | |
1037 | return errno = ENOMEM, | |
1038 | error("cannot allocate resources for timer"); | |
1039 | return 0; | |
1040 | } | |
1041 | ||
1042 | static void stop_timer_thread(void) | |
1043 | { | |
1044 | if (timer_event) | |
1045 | SetEvent(timer_event); /* tell thread to terminate */ | |
1046 | if (timer_thread) { | |
1047 | int rc = WaitForSingleObject(timer_thread, 1000); | |
1048 | if (rc == WAIT_TIMEOUT) | |
1049 | error("timer thread did not terminate timely"); | |
1050 | else if (rc != WAIT_OBJECT_0) | |
1051 | error("waiting for timer thread failed: %lu", | |
1052 | GetLastError()); | |
1053 | CloseHandle(timer_thread); | |
1054 | } | |
1055 | if (timer_event) | |
1056 | CloseHandle(timer_event); | |
1057 | timer_event = NULL; | |
1058 | timer_thread = NULL; | |
1059 | } | |
1060 | ||
1061 | static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2) | |
1062 | { | |
1063 | return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec; | |
1064 | } | |
1065 | ||
f4626df5 JS |
1066 | int setitimer(int type, struct itimerval *in, struct itimerval *out) |
1067 | { | |
6072fc31 JS |
1068 | static const struct timeval zero; |
1069 | static int atexit_done; | |
1070 | ||
1071 | if (out != NULL) | |
1072 | return errno = EINVAL, | |
1073 | error("setitimer param 3 != NULL not implemented"); | |
1074 | if (!is_timeval_eq(&in->it_interval, &zero) && | |
1075 | !is_timeval_eq(&in->it_interval, &in->it_value)) | |
1076 | return errno = EINVAL, | |
1077 | error("setitimer: it_interval must be zero or eq it_value"); | |
1078 | ||
1079 | if (timer_thread) | |
1080 | stop_timer_thread(); | |
1081 | ||
1082 | if (is_timeval_eq(&in->it_value, &zero) && | |
1083 | is_timeval_eq(&in->it_interval, &zero)) | |
1084 | return 0; | |
1085 | ||
1086 | timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000; | |
1087 | one_shot = is_timeval_eq(&in->it_interval, &zero); | |
1088 | if (!atexit_done) { | |
1089 | atexit(stop_timer_thread); | |
1090 | atexit_done = 1; | |
1091 | } | |
1092 | return start_timer_thread(); | |
f4626df5 JS |
1093 | } |
1094 | ||
1095 | int sigaction(int sig, struct sigaction *in, struct sigaction *out) | |
1096 | { | |
6072fc31 JS |
1097 | if (sig != SIGALRM) |
1098 | return errno = EINVAL, | |
1099 | error("sigaction only implemented for SIGALRM"); | |
1100 | if (out != NULL) | |
1101 | return errno = EINVAL, | |
1102 | error("sigaction: param 3 != NULL not implemented"); | |
1103 | ||
1104 | timer_fn = in->sa_handler; | |
1105 | return 0; | |
1106 | } | |
1107 | ||
1108 | #undef signal | |
1109 | sig_handler_t mingw_signal(int sig, sig_handler_t handler) | |
1110 | { | |
1111 | if (sig != SIGALRM) | |
1112 | return signal(sig, handler); | |
1113 | sig_handler_t old = timer_fn; | |
1114 | timer_fn = handler; | |
1115 | return old; | |
f4626df5 | 1116 | } |
4804aabc SP |
1117 | |
1118 | static const char *make_backslash_path(const char *path) | |
1119 | { | |
1120 | static char buf[PATH_MAX + 1]; | |
1121 | char *c; | |
1122 | ||
1123 | if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX) | |
1124 | die("Too long path: %.*s", 60, path); | |
1125 | ||
1126 | for (c = buf; *c; c++) { | |
1127 | if (*c == '/') | |
1128 | *c = '\\'; | |
1129 | } | |
1130 | return buf; | |
1131 | } | |
1132 | ||
1133 | void mingw_open_html(const char *unixpath) | |
1134 | { | |
1135 | const char *htmlpath = make_backslash_path(unixpath); | |
1136 | printf("Launching default browser to display HTML ...\n"); | |
1137 | ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0); | |
1138 | } | |
7be401e0 PK |
1139 | |
1140 | int link(const char *oldpath, const char *newpath) | |
1141 | { | |
1142 | typedef BOOL WINAPI (*T)(const char*, const char*, LPSECURITY_ATTRIBUTES); | |
1143 | static T create_hard_link = NULL; | |
1144 | if (!create_hard_link) { | |
1145 | create_hard_link = (T) GetProcAddress( | |
1146 | GetModuleHandle("kernel32.dll"), "CreateHardLinkA"); | |
1147 | if (!create_hard_link) | |
1148 | create_hard_link = (T)-1; | |
1149 | } | |
1150 | if (create_hard_link == (T)-1) { | |
1151 | errno = ENOSYS; | |
1152 | return -1; | |
1153 | } | |
1154 | if (!create_hard_link(newpath, oldpath, NULL)) { | |
1155 | errno = err_win_to_posix(GetLastError()); | |
1156 | return -1; | |
1157 | } | |
1158 | return 0; | |
1159 | } | |
0dbbbc1e JS |
1160 | |
1161 | char *getpass(const char *prompt) | |
1162 | { | |
1163 | struct strbuf buf = STRBUF_INIT; | |
1164 | ||
1165 | fputs(prompt, stderr); | |
1166 | for (;;) { | |
1167 | char c = _getch(); | |
1168 | if (c == '\r' || c == '\n') | |
1169 | break; | |
1170 | strbuf_addch(&buf, c); | |
1171 | } | |
1172 | fputs("\n", stderr); | |
1173 | return strbuf_detach(&buf, NULL); | |
1174 | } | |
e16c60d9 MSO |
1175 | |
1176 | #ifndef NO_MINGW_REPLACE_READDIR | |
1177 | /* MinGW readdir implementation to avoid extra lstats for Git */ | |
1178 | struct mingw_DIR | |
1179 | { | |
1180 | struct _finddata_t dd_dta; /* disk transfer area for this dir */ | |
1181 | struct mingw_dirent dd_dir; /* Our own implementation, including d_type */ | |
1182 | long dd_handle; /* _findnext handle */ | |
1183 | int dd_stat; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */ | |
1184 | char dd_name[1]; /* given path for dir with search pattern (struct is extended) */ | |
1185 | }; | |
1186 | ||
1187 | struct dirent *mingw_readdir(DIR *dir) | |
1188 | { | |
1189 | WIN32_FIND_DATAA buf; | |
1190 | HANDLE handle; | |
1191 | struct mingw_DIR *mdir = (struct mingw_DIR*)dir; | |
1192 | ||
1193 | if (!dir->dd_handle) { | |
1194 | errno = EBADF; /* No set_errno for mingw */ | |
1195 | return NULL; | |
1196 | } | |
1197 | ||
1198 | if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0) | |
1199 | { | |
1200 | handle = FindFirstFileA(dir->dd_name, &buf); | |
1201 | DWORD lasterr = GetLastError(); | |
1202 | dir->dd_handle = (long)handle; | |
1203 | if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) { | |
1204 | errno = err_win_to_posix(lasterr); | |
1205 | return NULL; | |
1206 | } | |
1207 | } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) { | |
1208 | return NULL; | |
1209 | } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) { | |
1210 | DWORD lasterr = GetLastError(); | |
1211 | FindClose((HANDLE)dir->dd_handle); | |
1212 | dir->dd_handle = (long)INVALID_HANDLE_VALUE; | |
1213 | /* POSIX says you shouldn't set errno when readdir can't | |
1214 | find any more files; so, if another error we leave it set. */ | |
1215 | if (lasterr != ERROR_NO_MORE_FILES) | |
1216 | errno = err_win_to_posix(lasterr); | |
1217 | return NULL; | |
1218 | } | |
1219 | ||
1220 | /* We get here if `buf' contains valid data. */ | |
1221 | strcpy(dir->dd_dir.d_name, buf.cFileName); | |
1222 | ++dir->dd_stat; | |
1223 | ||
1224 | /* Set file type, based on WIN32_FIND_DATA */ | |
1225 | mdir->dd_dir.d_type = 0; | |
1226 | if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
1227 | mdir->dd_dir.d_type |= DT_DIR; | |
1228 | else | |
1229 | mdir->dd_dir.d_type |= DT_REG; | |
1230 | ||
1231 | return (struct dirent*)&dir->dd_dir; | |
1232 | } | |
1233 | #endif // !NO_MINGW_REPLACE_READDIR |