1 #include "../git-compat-util.h"
6 #include "../run-command.h"
9 static const int delay[] = { 0, 1, 10, 20, 40 };
11 int err_win_to_posix(DWORD winerr)
15 case ERROR_ACCESS_DENIED: error = EACCES; break;
16 case ERROR_ACCOUNT_DISABLED: error = EACCES; break;
17 case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break;
18 case ERROR_ALREADY_ASSIGNED: error = EBUSY; break;
19 case ERROR_ALREADY_EXISTS: error = EEXIST; break;
20 case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break;
21 case ERROR_BAD_COMMAND: error = EIO; break;
22 case ERROR_BAD_DEVICE: error = ENODEV; break;
23 case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break;
24 case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break;
25 case ERROR_BAD_FORMAT: error = ENOEXEC; break;
26 case ERROR_BAD_LENGTH: error = EINVAL; break;
27 case ERROR_BAD_PATHNAME: error = ENOENT; break;
28 case ERROR_BAD_PIPE: error = EPIPE; break;
29 case ERROR_BAD_UNIT: error = ENODEV; break;
30 case ERROR_BAD_USERNAME: error = EINVAL; break;
31 case ERROR_BROKEN_PIPE: error = EPIPE; break;
32 case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break;
33 case ERROR_BUSY: error = EBUSY; break;
34 case ERROR_BUSY_DRIVE: error = EBUSY; break;
35 case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break;
36 case ERROR_CANNOT_MAKE: error = EACCES; break;
37 case ERROR_CANTOPEN: error = EIO; break;
38 case ERROR_CANTREAD: error = EIO; break;
39 case ERROR_CANTWRITE: error = EIO; break;
40 case ERROR_CRC: error = EIO; break;
41 case ERROR_CURRENT_DIRECTORY: error = EACCES; break;
42 case ERROR_DEVICE_IN_USE: error = EBUSY; break;
43 case ERROR_DEV_NOT_EXIST: error = ENODEV; break;
44 case ERROR_DIRECTORY: error = EINVAL; break;
45 case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break;
46 case ERROR_DISK_CHANGE: error = EIO; break;
47 case ERROR_DISK_FULL: error = ENOSPC; break;
48 case ERROR_DRIVE_LOCKED: error = EBUSY; break;
49 case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break;
50 case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break;
51 case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break;
52 case ERROR_FILE_EXISTS: error = EEXIST; break;
53 case ERROR_FILE_INVALID: error = ENODEV; break;
54 case ERROR_FILE_NOT_FOUND: error = ENOENT; break;
55 case ERROR_GEN_FAILURE: error = EIO; break;
56 case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break;
57 case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break;
58 case ERROR_INVALID_ACCESS: error = EACCES; break;
59 case ERROR_INVALID_ADDRESS: error = EFAULT; break;
60 case ERROR_INVALID_BLOCK: error = EFAULT; break;
61 case ERROR_INVALID_DATA: error = EINVAL; break;
62 case ERROR_INVALID_DRIVE: error = ENODEV; break;
63 case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break;
64 case ERROR_INVALID_FLAGS: error = EINVAL; break;
65 case ERROR_INVALID_FUNCTION: error = ENOSYS; break;
66 case ERROR_INVALID_HANDLE: error = EBADF; break;
67 case ERROR_INVALID_LOGON_HOURS: error = EACCES; break;
68 case ERROR_INVALID_NAME: error = EINVAL; break;
69 case ERROR_INVALID_OWNER: error = EINVAL; break;
70 case ERROR_INVALID_PARAMETER: error = EINVAL; break;
71 case ERROR_INVALID_PASSWORD: error = EPERM; break;
72 case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break;
73 case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break;
74 case ERROR_INVALID_TARGET_HANDLE: error = EIO; break;
75 case ERROR_INVALID_WORKSTATION: error = EACCES; break;
76 case ERROR_IO_DEVICE: error = EIO; break;
77 case ERROR_IO_INCOMPLETE: error = EINTR; break;
78 case ERROR_LOCKED: error = EBUSY; break;
79 case ERROR_LOCK_VIOLATION: error = EACCES; break;
80 case ERROR_LOGON_FAILURE: error = EACCES; break;
81 case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break;
82 case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break;
83 case ERROR_MORE_DATA: error = EPIPE; break;
84 case ERROR_NEGATIVE_SEEK: error = ESPIPE; break;
85 case ERROR_NOACCESS: error = EFAULT; break;
86 case ERROR_NONE_MAPPED: error = EINVAL; break;
87 case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break;
88 case ERROR_NOT_READY: error = EAGAIN; break;
89 case ERROR_NOT_SAME_DEVICE: error = EXDEV; break;
90 case ERROR_NO_DATA: error = EPIPE; break;
91 case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break;
92 case ERROR_NO_PROC_SLOTS: error = EAGAIN; break;
93 case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break;
94 case ERROR_OPEN_FAILED: error = EIO; break;
95 case ERROR_OPEN_FILES: error = EBUSY; break;
96 case ERROR_OPERATION_ABORTED: error = EINTR; break;
97 case ERROR_OUTOFMEMORY: error = ENOMEM; break;
98 case ERROR_PASSWORD_EXPIRED: error = EACCES; break;
99 case ERROR_PATH_BUSY: error = EBUSY; break;
100 case ERROR_PATH_NOT_FOUND: error = ENOENT; break;
101 case ERROR_PIPE_BUSY: error = EBUSY; break;
102 case ERROR_PIPE_CONNECTED: error = EPIPE; break;
103 case ERROR_PIPE_LISTENING: error = EPIPE; break;
104 case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break;
105 case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break;
106 case ERROR_READ_FAULT: error = EIO; break;
107 case ERROR_SEEK: error = EIO; break;
108 case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break;
109 case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break;
110 case ERROR_SHARING_VIOLATION: error = EACCES; break;
111 case ERROR_STACK_OVERFLOW: error = ENOMEM; break;
112 case ERROR_SWAPERROR: error = ENOENT; break;
113 case ERROR_TOO_MANY_MODULES: error = EMFILE; break;
114 case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break;
115 case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break;
116 case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break;
117 case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break;
118 case ERROR_WRITE_FAULT: error = EIO; break;
119 case ERROR_WRITE_PROTECT: error = EROFS; break;
124 static inline int is_file_in_use_error(DWORD errcode)
127 case ERROR_SHARING_VIOLATION:
128 case ERROR_ACCESS_DENIED:
135 static int read_yes_no_answer(void)
139 if (fgets(answer, sizeof(answer), stdin)) {
140 size_t answer_len = strlen(answer);
141 int got_full_line = 0, c;
143 /* remove the newline */
144 if (answer_len >= 2 && answer[answer_len-2] == '\r') {
145 answer[answer_len-2] = '\0';
147 } else if (answer_len >= 1 && answer[answer_len-1] == '\n') {
148 answer[answer_len-1] = '\0';
151 /* flush the buffer in case we did not get the full line */
153 while ((c = getchar()) != EOF && c != '\n')
156 /* we could not read, return the
157 * default answer which is no */
160 if (tolower(answer[0]) == 'y' && !answer[1])
162 if (!strncasecmp(answer, "yes", sizeof(answer)))
164 if (tolower(answer[0]) == 'n' && !answer[1])
166 if (!strncasecmp(answer, "no", sizeof(answer)))
169 /* did not find an answer we understand */
173 static int ask_yes_no_if_possible(const char *format, ...)
176 const char *retry_hook[] = { NULL, NULL, NULL };
179 va_start(args, format);
180 vsnprintf(question, sizeof(question), format, args);
183 if ((retry_hook[0] = mingw_getenv("GIT_ASK_YESNO"))) {
184 retry_hook[1] = question;
185 return !run_command_v_opt(retry_hook, 0);
188 if (!isatty(_fileno(stdin)) || !isatty(_fileno(stderr)))
193 fprintf(stderr, "%s (y/n) ", question);
195 if ((answer = read_yes_no_answer()) >= 0)
198 fprintf(stderr, "Sorry, I did not understand your answer. "
199 "Please type 'y' or 'n'\n");
203 int mingw_unlink(const char *pathname)
206 wchar_t wpathname[MAX_PATH];
207 if (xutftowcs_path(wpathname, pathname) < 0)
210 /* read-only files cannot be removed */
211 _wchmod(wpathname, 0666);
212 while ((ret = _wunlink(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
213 if (!is_file_in_use_error(GetLastError()))
216 * We assume that some other process had the source or
217 * destination file open at the wrong moment and retry.
218 * In order to give the other process a higher chance to
219 * complete its operation, we give up our time slice now.
220 * If we have to retry again, we do sleep a bit.
225 while (ret == -1 && is_file_in_use_error(GetLastError()) &&
226 ask_yes_no_if_possible("Unlink of file '%s' failed. "
227 "Should I try again?", pathname))
228 ret = _wunlink(wpathname);
232 static int is_dir_empty(const wchar_t *wpath)
234 WIN32_FIND_DATAW findbuf;
236 wchar_t wbuf[MAX_PATH + 2];
238 wcscat(wbuf, L"\\*");
239 handle = FindFirstFileW(wbuf, &findbuf);
240 if (handle == INVALID_HANDLE_VALUE)
241 return GetLastError() == ERROR_NO_MORE_FILES;
243 while (!wcscmp(findbuf.cFileName, L".") ||
244 !wcscmp(findbuf.cFileName, L".."))
245 if (!FindNextFileW(handle, &findbuf)) {
246 DWORD err = GetLastError();
248 return err == ERROR_NO_MORE_FILES;
254 int mingw_rmdir(const char *pathname)
257 wchar_t wpathname[MAX_PATH];
258 if (xutftowcs_path(wpathname, pathname) < 0)
261 while ((ret = _wrmdir(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
262 if (!is_file_in_use_error(GetLastError()))
263 errno = err_win_to_posix(GetLastError());
266 if (!is_dir_empty(wpathname)) {
271 * We assume that some other process had the source or
272 * destination file open at the wrong moment and retry.
273 * In order to give the other process a higher chance to
274 * complete its operation, we give up our time slice now.
275 * If we have to retry again, we do sleep a bit.
280 while (ret == -1 && errno == EACCES && is_file_in_use_error(GetLastError()) &&
281 ask_yes_no_if_possible("Deletion of directory '%s' failed. "
282 "Should I try again?", pathname))
283 ret = _wrmdir(wpathname);
287 int mingw_mkdir(const char *path, int mode)
290 wchar_t wpath[MAX_PATH];
291 if (xutftowcs_path(wpath, path) < 0)
293 ret = _wmkdir(wpath);
297 int mingw_open (const char *filename, int oflags, ...)
302 wchar_t wfilename[MAX_PATH];
304 va_start(args, oflags);
305 mode = va_arg(args, int);
308 if (filename && !strcmp(filename, "/dev/null"))
311 if (xutftowcs_path(wfilename, filename) < 0)
313 fd = _wopen(wfilename, oflags, mode);
315 if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) {
316 DWORD attrs = GetFileAttributesW(wfilename);
317 if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
323 static BOOL WINAPI ctrl_ignore(DWORD type)
329 int mingw_fgetc(FILE *stream)
332 if (!isatty(_fileno(stream)))
333 return fgetc(stream);
335 SetConsoleCtrlHandler(ctrl_ignore, TRUE);
338 if (ch != EOF || GetLastError() != ERROR_OPERATION_ABORTED)
341 /* Ctrl+C was pressed, simulate SIGINT and retry */
344 SetConsoleCtrlHandler(ctrl_ignore, FALSE);
349 FILE *mingw_fopen (const char *filename, const char *otype)
352 wchar_t wfilename[MAX_PATH], wotype[4];
353 if (filename && !strcmp(filename, "/dev/null"))
355 if (xutftowcs_path(wfilename, filename) < 0 ||
356 xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
358 file = _wfopen(wfilename, wotype);
362 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream)
365 wchar_t wfilename[MAX_PATH], wotype[4];
366 if (filename && !strcmp(filename, "/dev/null"))
368 if (xutftowcs_path(wfilename, filename) < 0 ||
369 xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
371 file = _wfreopen(wfilename, wotype, stream);
376 int mingw_fflush(FILE *stream)
378 int ret = fflush(stream);
381 * write() is used behind the scenes of stdio output functions.
382 * Since git code does not check for errors after each stdio write
383 * operation, it can happen that write() is called by a later
384 * stdio function even if an earlier write() call failed. In the
385 * case of a pipe whose readable end was closed, only the first
386 * call to write() reports EPIPE on Windows. Subsequent write()
387 * calls report EINVAL. It is impossible to notice whether this
388 * fflush invocation triggered such a case, therefore, we have to
389 * catch all EINVAL errors whole-sale.
391 if (ret && errno == EINVAL)
397 int mingw_access(const char *filename, int mode)
399 wchar_t wfilename[MAX_PATH];
400 if (xutftowcs_path(wfilename, filename) < 0)
402 /* X_OK is not supported by the MSVCRT version */
403 return _waccess(wfilename, mode & ~X_OK);
406 int mingw_chdir(const char *dirname)
408 wchar_t wdirname[MAX_PATH];
409 if (xutftowcs_path(wdirname, dirname) < 0)
411 return _wchdir(wdirname);
414 int mingw_chmod(const char *filename, int mode)
416 wchar_t wfilename[MAX_PATH];
417 if (xutftowcs_path(wfilename, filename) < 0)
419 return _wchmod(wfilename, mode);
423 * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
424 * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
426 static inline long long filetime_to_hnsec(const FILETIME *ft)
428 long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
429 /* Windows to Unix Epoch conversion */
430 return winTime - 116444736000000000LL;
433 static inline time_t filetime_to_time_t(const FILETIME *ft)
435 return (time_t)(filetime_to_hnsec(ft) / 10000000);
438 /* We keep the do_lstat code in a separate function to avoid recursion.
439 * When a path ends with a slash, the stat will fail with ENOENT. In
440 * this case, we strip the trailing slashes and stat again.
442 * If follow is true then act like stat() and report on the link
443 * target. Otherwise report on the link itself.
445 static int do_lstat(int follow, const char *file_name, struct stat *buf)
447 WIN32_FILE_ATTRIBUTE_DATA fdata;
448 wchar_t wfilename[MAX_PATH];
449 if (xutftowcs_path(wfilename, file_name) < 0)
452 if (GetFileAttributesExW(wfilename, GetFileExInfoStandard, &fdata)) {
457 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
458 buf->st_size = fdata.nFileSizeLow |
459 (((off_t)fdata.nFileSizeHigh)<<32);
460 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
461 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
462 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
463 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
464 if (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
465 WIN32_FIND_DATAW findbuf;
466 HANDLE handle = FindFirstFileW(wfilename, &findbuf);
467 if (handle != INVALID_HANDLE_VALUE) {
468 if ((findbuf.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
469 (findbuf.dwReserved0 == IO_REPARSE_TAG_SYMLINK)) {
471 char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
472 buf->st_size = readlink(file_name, buffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE);
474 buf->st_mode = S_IFLNK;
476 buf->st_mode |= S_IREAD;
477 if (!(findbuf.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
478 buf->st_mode |= S_IWRITE;
485 switch (GetLastError()) {
486 case ERROR_ACCESS_DENIED:
487 case ERROR_SHARING_VIOLATION:
488 case ERROR_LOCK_VIOLATION:
489 case ERROR_SHARING_BUFFER_EXCEEDED:
492 case ERROR_BUFFER_OVERFLOW:
493 errno = ENAMETOOLONG;
495 case ERROR_NOT_ENOUGH_MEMORY:
505 /* We provide our own lstat/fstat functions, since the provided
506 * lstat/fstat functions are so slow. These stat functions are
507 * tailored for Git's usage (read: fast), and are not meant to be
508 * complete. Note that Git stat()s are redirected to mingw_lstat()
509 * too, since Windows doesn't really handle symlinks that well.
511 static int do_stat_internal(int follow, const char *file_name, struct stat *buf)
514 char alt_name[PATH_MAX];
516 if (!do_lstat(follow, file_name, buf))
519 /* if file_name ended in a '/', Windows returned ENOENT;
520 * try again without trailing slashes
525 namelen = strlen(file_name);
526 if (namelen && file_name[namelen-1] != '/')
528 while (namelen && file_name[namelen-1] == '/')
530 if (!namelen || namelen >= PATH_MAX)
533 memcpy(alt_name, file_name, namelen);
534 alt_name[namelen] = 0;
535 return do_lstat(follow, alt_name, buf);
538 int mingw_lstat(const char *file_name, struct stat *buf)
540 return do_stat_internal(0, file_name, buf);
542 int mingw_stat(const char *file_name, struct stat *buf)
544 return do_stat_internal(1, file_name, buf);
547 int mingw_fstat(int fd, struct stat *buf)
549 HANDLE fh = (HANDLE)_get_osfhandle(fd);
550 BY_HANDLE_FILE_INFORMATION fdata;
552 if (fh == INVALID_HANDLE_VALUE) {
556 /* direct non-file handles to MS's fstat() */
557 if (GetFileType(fh) != FILE_TYPE_DISK)
558 return _fstati64(fd, buf);
560 if (GetFileInformationByHandle(fh, &fdata)) {
565 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
566 buf->st_size = fdata.nFileSizeLow |
567 (((off_t)fdata.nFileSizeHigh)<<32);
568 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
569 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
570 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
571 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
578 static inline void time_t_to_filetime(time_t t, FILETIME *ft)
580 long long winTime = t * 10000000LL + 116444736000000000LL;
581 ft->dwLowDateTime = winTime;
582 ft->dwHighDateTime = winTime >> 32;
585 int mingw_utime (const char *file_name, const struct utimbuf *times)
590 wchar_t wfilename[MAX_PATH];
591 if (xutftowcs_path(wfilename, file_name) < 0)
594 /* must have write permission */
595 attrs = GetFileAttributesW(wfilename);
596 if (attrs != INVALID_FILE_ATTRIBUTES &&
597 (attrs & FILE_ATTRIBUTE_READONLY)) {
598 /* ignore errors here; open() will report them */
599 SetFileAttributesW(wfilename, attrs & ~FILE_ATTRIBUTE_READONLY);
602 if ((fh = _wopen(wfilename, O_RDWR | O_BINARY)) < 0) {
608 time_t_to_filetime(times->modtime, &mft);
609 time_t_to_filetime(times->actime, &aft);
611 GetSystemTimeAsFileTime(&mft);
614 if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
622 if (attrs != INVALID_FILE_ATTRIBUTES &&
623 (attrs & FILE_ATTRIBUTE_READONLY)) {
624 /* ignore errors again */
625 SetFileAttributesW(wfilename, attrs);
630 unsigned int sleep (unsigned int seconds)
636 char *mingw_mktemp(char *template)
638 wchar_t wtemplate[MAX_PATH];
639 if (xutftowcs_path(wtemplate, template) < 0)
641 if (!_wmktemp(wtemplate))
643 if (xwcstoutf(template, wtemplate, strlen(template) + 1) < 0)
648 int mkstemp(char *template)
650 char *filename = mktemp(template);
651 if (filename == NULL)
653 return open(filename, O_RDWR | O_CREAT, 0600);
656 int gettimeofday(struct timeval *tv, void *tz)
661 GetSystemTimeAsFileTime(&ft);
662 hnsec = filetime_to_hnsec(&ft);
663 tv->tv_sec = hnsec / 10000000;
664 tv->tv_usec = (hnsec % 10000000) / 10;
668 int pipe(int filedes[2])
672 /* this creates non-inheritable handles */
673 if (!CreatePipe(&h[0], &h[1], NULL, 8192)) {
674 errno = err_win_to_posix(GetLastError());
677 filedes[0] = _open_osfhandle((int)h[0], O_NOINHERIT);
678 if (filedes[0] < 0) {
683 filedes[1] = _open_osfhandle((int)h[1], O_NOINHERIT);
684 if (filedes[0] < 0) {
692 struct tm *gmtime_r(const time_t *timep, struct tm *result)
694 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
695 memcpy(result, gmtime(timep), sizeof(struct tm));
699 struct tm *localtime_r(const time_t *timep, struct tm *result)
701 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
702 memcpy(result, localtime(timep), sizeof(struct tm));
706 char *mingw_getcwd(char *pointer, int len)
709 wchar_t wpointer[MAX_PATH];
710 if (!_wgetcwd(wpointer, ARRAY_SIZE(wpointer)))
712 if (xwcstoutf(pointer, wpointer, len) < 0)
714 for (i = 0; pointer[i]; i++)
715 if (pointer[i] == '\\')
721 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
722 * (Parsing C++ Command-Line Arguments)
724 static const char *quote_arg(const char *arg)
726 /* count chars to quote */
728 int force_quotes = 0;
731 if (!*p) force_quotes = 1;
733 if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'')
737 else if (*p == '\\') {
751 if (!force_quotes && n == 0)
754 /* insert \ where necessary */
755 d = q = xmalloc(len+n+3);
760 else if (*arg == '\\') {
762 while (*arg == '\\') {
779 static const char *parse_interpreter(const char *cmd)
781 static char buf[100];
785 /* don't even try a .exe */
787 if (n >= 4 && !strcasecmp(cmd+n-4, ".exe"))
790 fd = open(cmd, O_RDONLY);
793 n = read(fd, buf, sizeof(buf)-1);
795 if (n < 4) /* at least '#!/x' and not error */
798 if (buf[0] != '#' || buf[1] != '!')
801 p = buf + strcspn(buf, "\r\n");
806 if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\')))
809 if ((opt = strchr(p+1, ' ')))
815 * Splits the PATH into parts.
817 static char **get_path_split(void)
819 char *p, **path, *envpath = mingw_getenv("PATH");
822 if (!envpath || !*envpath)
825 envpath = xstrdup(envpath);
831 if (*dir) { /* not earlier, catches series of ; */
838 path = xmalloc((n+1)*sizeof(char *));
843 path[i++] = xstrdup(p);
853 static void free_path_split(char **path)
866 * exe_only means that we only want to detect .exe files, but not scripts
867 * (which do not have an extension)
869 static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only)
872 snprintf(path, sizeof(path), "%s/%s.exe", dir, cmd);
874 if (!isexe && access(path, F_OK) == 0)
875 return xstrdup(path);
876 path[strlen(path)-4] = '\0';
877 if ((!exe_only || isexe) && access(path, F_OK) == 0)
878 if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY))
879 return xstrdup(path);
884 * Determines the absolute path of cmd using the split path in path.
885 * If cmd contains a slash or backslash, no lookup is performed.
887 static char *path_lookup(const char *cmd, char **path, int exe_only)
890 int len = strlen(cmd);
891 int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe");
893 if (strchr(cmd, '/') || strchr(cmd, '\\'))
896 while (!prog && *path)
897 prog = lookup_prog(*path++, cmd, isexe, exe_only);
902 static int do_putenv(char **env, const char *name, int size, int free_old);
904 /* used number of elements of environ array, including terminating NULL */
905 static int environ_size = 0;
906 /* allocated size of environ array, in bytes */
907 static int environ_alloc = 0;
909 static int compareenv(const void *a, const void *b)
913 return strcasecmp(*ea, *eb);
917 * Create environment block suitable for CreateProcess. Merges current
918 * process environment and the supplied environment changes.
920 static wchar_t *make_environment_block(char **deltaenv)
922 wchar_t *wenvblk = NULL;
924 int i = 0, size = environ_size, wenvsz = 0, wenvpos = 0;
926 while (deltaenv && deltaenv[i])
929 /* copy the environment, leaving space for changes */
930 tmpenv = xmalloc((size + i) * sizeof(char*));
931 memcpy(tmpenv, environ, size * sizeof(char*));
933 /* merge supplied environment changes into the temporary environment */
934 for (i = 0; deltaenv && deltaenv[i]; i++)
935 size = do_putenv(tmpenv, deltaenv[i], size, 0);
937 /* environment must be sorted */
938 qsort(tmpenv, size - 1, sizeof(char*), compareenv);
940 /* create environment block from temporary environment */
941 for (i = 0; tmpenv[i]; i++) {
942 size = 2 * strlen(tmpenv[i]) + 2; /* +2 for final \0 */
943 ALLOC_GROW(wenvblk, (wenvpos + size) * sizeof(wchar_t), wenvsz);
944 wenvpos += xutftowcs(&wenvblk[wenvpos], tmpenv[i], size) + 1;
946 /* add final \0 terminator */
947 wenvblk[wenvpos] = 0;
953 struct pinfo_t *next;
957 static struct pinfo_t *pinfo = NULL;
958 CRITICAL_SECTION pinfo_cs;
960 static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **deltaenv,
962 int prepend_cmd, int fhin, int fhout, int fherr)
965 PROCESS_INFORMATION pi;
967 wchar_t wcmd[MAX_PATH], wdir[MAX_PATH], *wargs, *wenvblk = NULL;
968 unsigned flags = CREATE_UNICODE_ENVIRONMENT;
971 /* Determine whether or not we are associated to a console */
972 HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
973 FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
974 FILE_ATTRIBUTE_NORMAL, NULL);
975 if (cons == INVALID_HANDLE_VALUE) {
976 /* There is no console associated with this process.
977 * Since the child is a console process, Windows
978 * would normally create a console window. But
979 * since we'll be redirecting std streams, we do
980 * not need the console.
981 * It is necessary to use DETACHED_PROCESS
982 * instead of CREATE_NO_WINDOW to make ssh
983 * recognize that it has no console.
985 flags |= DETACHED_PROCESS;
987 /* There is already a console. If we specified
988 * DETACHED_PROCESS here, too, Windows would
989 * disassociate the child from the console.
990 * The same is true for CREATE_NO_WINDOW.
995 memset(&si, 0, sizeof(si));
997 si.dwFlags = STARTF_USESTDHANDLES;
998 si.hStdInput = winansi_get_osfhandle(fhin);
999 si.hStdOutput = winansi_get_osfhandle(fhout);
1000 si.hStdError = winansi_get_osfhandle(fherr);
1002 if (xutftowcs_path(wcmd, cmd) < 0)
1004 if (dir && xutftowcs_path(wdir, dir) < 0)
1007 /* concatenate argv, quoting args as we go */
1008 strbuf_init(&args, 0);
1010 char *quoted = (char *)quote_arg(cmd);
1011 strbuf_addstr(&args, quoted);
1015 for (; *argv; argv++) {
1016 char *quoted = (char *)quote_arg(*argv);
1018 strbuf_addch(&args, ' ');
1019 strbuf_addstr(&args, quoted);
1020 if (quoted != *argv)
1024 wargs = xmalloc((2 * args.len + 1) * sizeof(wchar_t));
1025 xutftowcs(wargs, args.buf, 2 * args.len + 1);
1026 strbuf_release(&args);
1028 wenvblk = make_environment_block(deltaenv);
1030 memset(&pi, 0, sizeof(pi));
1031 ret = CreateProcessW(wcmd, wargs, NULL, NULL, TRUE, flags,
1032 wenvblk, dir ? wdir : NULL, &si, &pi);
1041 CloseHandle(pi.hThread);
1044 * The process ID is the human-readable identifier of the process
1045 * that we want to present in log and error messages. The handle
1046 * is not useful for this purpose. But we cannot close it, either,
1047 * because it is not possible to turn a process ID into a process
1048 * handle after the process terminated.
1049 * Keep the handle in a list for waitpid.
1051 EnterCriticalSection(&pinfo_cs);
1053 struct pinfo_t *info = xmalloc(sizeof(struct pinfo_t));
1054 info->pid = pi.dwProcessId;
1055 info->proc = pi.hProcess;
1059 LeaveCriticalSection(&pinfo_cs);
1061 return (pid_t)pi.dwProcessId;
1064 static pid_t mingw_spawnv(const char *cmd, const char **argv, int prepend_cmd)
1066 return mingw_spawnve_fd(cmd, argv, NULL, NULL, prepend_cmd, 0, 1, 2);
1069 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **deltaenv,
1071 int fhin, int fhout, int fherr)
1074 char **path = get_path_split();
1075 char *prog = path_lookup(cmd, path, 0);
1082 const char *interpr = parse_interpreter(prog);
1085 const char *argv0 = argv[0];
1086 char *iprog = path_lookup(interpr, path, 1);
1093 pid = mingw_spawnve_fd(iprog, argv, deltaenv, dir, 1,
1094 fhin, fhout, fherr);
1100 pid = mingw_spawnve_fd(prog, argv, deltaenv, dir, 0,
1101 fhin, fhout, fherr);
1104 free_path_split(path);
1108 static int try_shell_exec(const char *cmd, char *const *argv)
1110 const char *interpr = parse_interpreter(cmd);
1117 path = get_path_split();
1118 prog = path_lookup(interpr, path, 1);
1122 while (argv[argc]) argc++;
1123 argv2 = xmalloc(sizeof(*argv) * (argc+1));
1124 argv2[0] = (char *)cmd; /* full path to the script file */
1125 memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
1126 pid = mingw_spawnv(prog, argv2, 1);
1129 if (waitpid(pid, &status, 0) < 0)
1133 pid = 1; /* indicate that we tried but failed */
1137 free_path_split(path);
1141 int mingw_execv(const char *cmd, char *const *argv)
1143 /* check if git_command is a shell script */
1144 if (!try_shell_exec(cmd, argv)) {
1147 pid = mingw_spawnv(cmd, (const char **)argv, 0);
1150 if (waitpid(pid, &status, 0) < 0)
1157 int mingw_execvp(const char *cmd, char *const *argv)
1159 char **path = get_path_split();
1160 char *prog = path_lookup(cmd, path, 0);
1163 mingw_execv(prog, argv);
1168 free_path_split(path);
1172 int mingw_kill(pid_t pid, int sig)
1174 if (pid > 0 && sig == SIGTERM) {
1175 HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
1177 if (TerminateProcess(h, -1)) {
1182 errno = err_win_to_posix(GetLastError());
1185 } else if (pid > 0 && sig == 0) {
1186 HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
1197 static int lookupenv(char **env, const char *name, size_t nmln)
1201 for (i = 0; env[i]; i++) {
1202 if (!strncasecmp(env[i], name, nmln) && '=' == env[i][nmln])
1210 * If name contains '=', then sets the variable, otherwise it unsets it
1211 * Size includes the terminating NULL. Env must have room for size + 1 entries
1212 * (in case of insert). Returns the new size. Optionally frees removed entries.
1214 static int do_putenv(char **env, const char *name, int size, int free_old)
1216 char *eq = strchrnul(name, '=');
1217 int i = lookupenv(env, name, eq-name);
1221 env[size - 1] = (char*) name;
1230 env[i] = (char*) name;
1241 char *mingw_getenv(const char *name)
1243 char *result = getenv(name);
1244 if (!result && !strcmp(name, "TMPDIR")) {
1245 /* on Windows it is TMP and TEMP */
1246 result = getenv("TMP");
1248 result = getenv("TEMP");
1253 int mingw_putenv(const char *namevalue)
1255 ALLOC_GROW(environ, (environ_size + 1) * sizeof(char*), environ_alloc);
1256 environ_size = do_putenv(environ, namevalue, environ_size, 1);
1261 * Note, this isn't a complete replacement for getaddrinfo. It assumes
1262 * that service contains a numerical port, or that it is null. It
1263 * does a simple search using gethostbyname, and returns one IPv4 host
1266 static int WSAAPI getaddrinfo_stub(const char *node, const char *service,
1267 const struct addrinfo *hints,
1268 struct addrinfo **res)
1270 struct hostent *h = NULL;
1271 struct addrinfo *ai;
1272 struct sockaddr_in *sin;
1275 h = gethostbyname(node);
1277 return WSAGetLastError();
1280 ai = xmalloc(sizeof(struct addrinfo));
1283 ai->ai_family = AF_INET;
1284 ai->ai_socktype = hints ? hints->ai_socktype : 0;
1285 switch (ai->ai_socktype) {
1287 ai->ai_protocol = IPPROTO_TCP;
1290 ai->ai_protocol = IPPROTO_UDP;
1293 ai->ai_protocol = 0;
1296 ai->ai_addrlen = sizeof(struct sockaddr_in);
1297 if (hints && (hints->ai_flags & AI_CANONNAME))
1298 ai->ai_canonname = h ? xstrdup(h->h_name) : NULL;
1300 ai->ai_canonname = NULL;
1302 sin = xmalloc(ai->ai_addrlen);
1303 memset(sin, 0, ai->ai_addrlen);
1304 sin->sin_family = AF_INET;
1305 /* Note: getaddrinfo is supposed to allow service to be a string,
1306 * which should be looked up using getservbyname. This is
1307 * currently not implemented */
1309 sin->sin_port = htons(atoi(service));
1311 sin->sin_addr = *(struct in_addr *)h->h_addr;
1312 else if (hints && (hints->ai_flags & AI_PASSIVE))
1313 sin->sin_addr.s_addr = INADDR_ANY;
1315 sin->sin_addr.s_addr = INADDR_LOOPBACK;
1316 ai->ai_addr = (struct sockaddr *)sin;
1321 static void WSAAPI freeaddrinfo_stub(struct addrinfo *res)
1323 free(res->ai_canonname);
1328 static int WSAAPI getnameinfo_stub(const struct sockaddr *sa, socklen_t salen,
1329 char *host, DWORD hostlen,
1330 char *serv, DWORD servlen, int flags)
1332 const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
1333 if (sa->sa_family != AF_INET)
1338 if (host && hostlen > 0) {
1339 struct hostent *ent = NULL;
1340 if (!(flags & NI_NUMERICHOST))
1341 ent = gethostbyaddr((const char *)&sin->sin_addr,
1342 sizeof(sin->sin_addr), AF_INET);
1345 snprintf(host, hostlen, "%s", ent->h_name);
1346 else if (flags & NI_NAMEREQD)
1349 snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr));
1352 if (serv && servlen > 0) {
1353 struct servent *ent = NULL;
1354 if (!(flags & NI_NUMERICSERV))
1355 ent = getservbyport(sin->sin_port,
1356 flags & NI_DGRAM ? "udp" : "tcp");
1359 snprintf(serv, servlen, "%s", ent->s_name);
1361 snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
1367 static HMODULE ipv6_dll = NULL;
1368 static void (WSAAPI *ipv6_freeaddrinfo)(struct addrinfo *res);
1369 static int (WSAAPI *ipv6_getaddrinfo)(const char *node, const char *service,
1370 const struct addrinfo *hints,
1371 struct addrinfo **res);
1372 static int (WSAAPI *ipv6_getnameinfo)(const struct sockaddr *sa, socklen_t salen,
1373 char *host, DWORD hostlen,
1374 char *serv, DWORD servlen, int flags);
1376 * gai_strerror is an inline function in the ws2tcpip.h header, so we
1377 * don't need to try to load that one dynamically.
1380 static void socket_cleanup(void)
1384 FreeLibrary(ipv6_dll);
1386 ipv6_freeaddrinfo = freeaddrinfo_stub;
1387 ipv6_getaddrinfo = getaddrinfo_stub;
1388 ipv6_getnameinfo = getnameinfo_stub;
1391 static void ensure_socket_initialization(void)
1394 static int initialized = 0;
1395 const char *libraries[] = { "ws2_32.dll", "wship6.dll", NULL };
1401 if (WSAStartup(MAKEWORD(2,2), &wsa))
1402 die("unable to initialize winsock subsystem, error %d",
1405 for (name = libraries; *name; name++) {
1406 ipv6_dll = LoadLibrary(*name);
1410 ipv6_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *))
1411 GetProcAddress(ipv6_dll, "freeaddrinfo");
1412 ipv6_getaddrinfo = (int (WSAAPI *)(const char *, const char *,
1413 const struct addrinfo *,
1414 struct addrinfo **))
1415 GetProcAddress(ipv6_dll, "getaddrinfo");
1416 ipv6_getnameinfo = (int (WSAAPI *)(const struct sockaddr *,
1417 socklen_t, char *, DWORD,
1418 char *, DWORD, int))
1419 GetProcAddress(ipv6_dll, "getnameinfo");
1420 if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
1421 FreeLibrary(ipv6_dll);
1426 if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
1427 ipv6_freeaddrinfo = freeaddrinfo_stub;
1428 ipv6_getaddrinfo = getaddrinfo_stub;
1429 ipv6_getnameinfo = getnameinfo_stub;
1432 atexit(socket_cleanup);
1437 int mingw_gethostname(char *name, int namelen)
1439 ensure_socket_initialization();
1440 return gethostname(name, namelen);
1443 #undef gethostbyname
1444 struct hostent *mingw_gethostbyname(const char *host)
1446 ensure_socket_initialization();
1447 return gethostbyname(host);
1450 void mingw_freeaddrinfo(struct addrinfo *res)
1452 ipv6_freeaddrinfo(res);
1455 int mingw_getaddrinfo(const char *node, const char *service,
1456 const struct addrinfo *hints, struct addrinfo **res)
1458 ensure_socket_initialization();
1459 return ipv6_getaddrinfo(node, service, hints, res);
1462 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
1463 char *host, DWORD hostlen, char *serv, DWORD servlen,
1466 ensure_socket_initialization();
1467 return ipv6_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags);
1470 int mingw_socket(int domain, int type, int protocol)
1475 ensure_socket_initialization();
1476 s = WSASocket(domain, type, protocol, NULL, 0, 0);
1477 if (s == INVALID_SOCKET) {
1479 * WSAGetLastError() values are regular BSD error codes
1480 * biased by WSABASEERR.
1481 * However, strerror() does not know about networking
1482 * specific errors, which are values beginning at 38 or so.
1483 * Therefore, we choose to leave the biased error code
1484 * in errno so that _if_ someone looks up the code somewhere,
1485 * then it is at least the number that are usually listed.
1487 errno = WSAGetLastError();
1490 /* convert into a file descriptor */
1491 if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
1493 return error("unable to make a socket file descriptor: %s",
1500 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
1502 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1503 return connect(s, sa, sz);
1507 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz)
1509 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1510 return bind(s, sa, sz);
1514 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen)
1516 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1517 return setsockopt(s, lvl, optname, (const char*)optval, optlen);
1521 int mingw_shutdown(int sockfd, int how)
1523 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1524 return shutdown(s, how);
1528 int mingw_listen(int sockfd, int backlog)
1530 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1531 return listen(s, backlog);
1535 int mingw_accept(int sockfd1, struct sockaddr *sa, socklen_t *sz)
1539 SOCKET s1 = (SOCKET)_get_osfhandle(sockfd1);
1540 SOCKET s2 = accept(s1, sa, sz);
1542 /* convert into a file descriptor */
1543 if ((sockfd2 = _open_osfhandle(s2, O_RDWR|O_BINARY)) < 0) {
1546 return error("unable to make a socket file descriptor: %s",
1553 int mingw_rename(const char *pold, const char *pnew)
1557 wchar_t wpold[MAX_PATH], wpnew[MAX_PATH];
1558 if (xutftowcs_path(wpold, pold) < 0 || xutftowcs_path(wpnew, pnew) < 0)
1562 * Try native rename() first to get errno right.
1563 * It is based on MoveFile(), which cannot overwrite existing files.
1565 if (!_wrename(wpold, wpnew))
1567 if (errno != EEXIST)
1570 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1572 /* TODO: translate more errors */
1573 gle = GetLastError();
1574 if (gle == ERROR_ACCESS_DENIED &&
1575 (attrs = GetFileAttributesW(wpnew)) != INVALID_FILE_ATTRIBUTES) {
1576 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
1580 if ((attrs & FILE_ATTRIBUTE_READONLY) &&
1581 SetFileAttributesW(wpnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
1582 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1584 gle = GetLastError();
1585 /* revert file attributes on failure */
1586 SetFileAttributesW(wpnew, attrs);
1589 if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
1591 * We assume that some other process had the source or
1592 * destination file open at the wrong moment and retry.
1593 * In order to give the other process a higher chance to
1594 * complete its operation, we give up our time slice now.
1595 * If we have to retry again, we do sleep a bit.
1597 Sleep(delay[tries]);
1601 if (gle == ERROR_ACCESS_DENIED &&
1602 ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
1603 "Should I try again?", pold, pnew))
1611 * Note that this doesn't return the actual pagesize, but
1612 * the allocation granularity. If future Windows specific git code
1613 * needs the real getpagesize function, we need to find another solution.
1615 int mingw_getpagesize(void)
1619 return si.dwAllocationGranularity;
1622 struct passwd *getpwuid(int uid)
1624 static char user_name[100];
1625 static struct passwd p;
1627 DWORD len = sizeof(user_name);
1628 if (!GetUserName(user_name, &len))
1630 p.pw_name = user_name;
1631 p.pw_gecos = "unknown";
1636 static HANDLE timer_event;
1637 static HANDLE timer_thread;
1638 static int timer_interval;
1639 static int one_shot;
1640 static sig_handler_t timer_fn = SIG_DFL, sigint_fn = SIG_DFL;
1642 /* The timer works like this:
1643 * The thread, ticktack(), is a trivial routine that most of the time
1644 * only waits to receive the signal to terminate. The main thread tells
1645 * the thread to terminate by setting the timer_event to the signalled
1647 * But ticktack() interrupts the wait state after the timer's interval
1648 * length to call the signal handler.
1651 static unsigned __stdcall ticktack(void *dummy)
1653 while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
1654 mingw_raise(SIGALRM);
1661 static int start_timer_thread(void)
1663 timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1665 timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
1667 return errno = ENOMEM,
1668 error("cannot start timer thread");
1670 return errno = ENOMEM,
1671 error("cannot allocate resources for timer");
1675 static void stop_timer_thread(void)
1678 SetEvent(timer_event); /* tell thread to terminate */
1680 int rc = WaitForSingleObject(timer_thread, 1000);
1681 if (rc == WAIT_TIMEOUT)
1682 error("timer thread did not terminate timely");
1683 else if (rc != WAIT_OBJECT_0)
1684 error("waiting for timer thread failed: %lu",
1686 CloseHandle(timer_thread);
1689 CloseHandle(timer_event);
1691 timer_thread = NULL;
1694 static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2)
1696 return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec;
1699 int setitimer(int type, struct itimerval *in, struct itimerval *out)
1701 static const struct timeval zero;
1702 static int atexit_done;
1705 return errno = EINVAL,
1706 error("setitimer param 3 != NULL not implemented");
1707 if (!is_timeval_eq(&in->it_interval, &zero) &&
1708 !is_timeval_eq(&in->it_interval, &in->it_value))
1709 return errno = EINVAL,
1710 error("setitimer: it_interval must be zero or eq it_value");
1713 stop_timer_thread();
1715 if (is_timeval_eq(&in->it_value, &zero) &&
1716 is_timeval_eq(&in->it_interval, &zero))
1719 timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000;
1720 one_shot = is_timeval_eq(&in->it_interval, &zero);
1722 atexit(stop_timer_thread);
1725 return start_timer_thread();
1728 int sigaction(int sig, struct sigaction *in, struct sigaction *out)
1731 return errno = EINVAL,
1732 error("sigaction only implemented for SIGALRM");
1734 return errno = EINVAL,
1735 error("sigaction: param 3 != NULL not implemented");
1737 timer_fn = in->sa_handler;
1742 sig_handler_t mingw_signal(int sig, sig_handler_t handler)
1754 sigint_fn = handler;
1758 return signal(sig, handler);
1765 int mingw_raise(int sig)
1769 if (timer_fn == SIG_DFL) {
1770 if (isatty(STDERR_FILENO))
1771 fputs("Alarm clock\n", stderr);
1772 exit(128 + SIGALRM);
1773 } else if (timer_fn != SIG_IGN)
1778 if (sigint_fn == SIG_DFL)
1780 else if (sigint_fn != SIG_IGN)
1790 static const char *make_backslash_path(const char *path)
1792 static char buf[PATH_MAX + 1];
1795 if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
1796 die("Too long path: %.*s", 60, path);
1798 for (c = buf; *c; c++) {
1805 void mingw_open_html(const char *unixpath)
1807 const char *htmlpath = make_backslash_path(unixpath);
1808 typedef HINSTANCE (WINAPI *T)(HWND, const char *,
1809 const char *, const char *, const char *, INT);
1814 shell32 = LoadLibrary("shell32.dll");
1816 die("cannot load shell32.dll");
1817 ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA");
1819 die("cannot run browser");
1821 printf("Launching default browser to display HTML ...\n");
1822 r = (int)ShellExecute(NULL, "open", htmlpath, NULL, "\\", SW_SHOWNORMAL);
1823 FreeLibrary(shell32);
1824 /* see the MSDN documentation referring to the result codes here */
1826 die("failed to launch browser for %.*s", MAX_PATH, unixpath);
1830 int link(const char *oldpath, const char *newpath)
1832 typedef BOOL (WINAPI *T)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES);
1833 static T create_hard_link = NULL;
1834 wchar_t woldpath[MAX_PATH], wnewpath[MAX_PATH];
1835 if (xutftowcs_path(woldpath, oldpath) < 0 ||
1836 xutftowcs_path(wnewpath, newpath) < 0)
1839 if (!create_hard_link) {
1840 create_hard_link = (T) GetProcAddress(
1841 GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
1842 if (!create_hard_link)
1843 create_hard_link = (T)-1;
1845 if (create_hard_link == (T)-1) {
1849 if (!create_hard_link(wnewpath, woldpath, NULL)) {
1850 errno = err_win_to_posix(GetLastError());
1856 pid_t waitpid(pid_t pid, int *status, int options)
1858 HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
1865 if (pid > 0 && options & WNOHANG) {
1866 if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) {
1870 options &= ~WNOHANG;
1874 struct pinfo_t **ppinfo;
1875 if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
1881 GetExitCodeProcess(h, (LPDWORD)status);
1883 EnterCriticalSection(&pinfo_cs);
1887 struct pinfo_t *info = *ppinfo;
1888 if (info->pid == pid) {
1889 CloseHandle(info->proc);
1890 *ppinfo = info->next;
1894 ppinfo = &info->next;
1897 LeaveCriticalSection(&pinfo_cs);
1908 int mingw_offset_1st_component(const char *path)
1911 if (has_dos_drive_prefix(path))
1915 else if (is_dir_sep(path[0]) && is_dir_sep(path[1])) {
1917 /* skip server name */
1918 char *pos = strpbrk(path + 2, "\\/");
1920 return 0; /* Error: malformed unc path */
1924 } while (*pos && !is_dir_sep(*pos));
1926 offset = pos - path;
1929 return offset + is_dir_sep(path[offset]);
1932 int xutftowcsn(wchar_t *wcs, const char *utfs, size_t wcslen, int utflen)
1934 int upos = 0, wpos = 0;
1935 const unsigned char *utf = (const unsigned char*) utfs;
1936 if (!utf || !wcs || wcslen < 1) {
1940 /* reserve space for \0 */
1945 while (upos < utflen) {
1946 int c = utf[upos++] & 0xff;
1947 if (utflen == INT_MAX && c == 0)
1950 if (wpos >= wcslen) {
1959 } else if (c >= 0xc2 && c < 0xe0 && upos < utflen &&
1960 (utf[upos] & 0xc0) == 0x80) {
1962 c = ((c & 0x1f) << 6);
1963 c |= (utf[upos++] & 0x3f);
1965 } else if (c >= 0xe0 && c < 0xf0 && upos + 1 < utflen &&
1966 !(c == 0xe0 && utf[upos] < 0xa0) && /* over-long encoding */
1967 (utf[upos] & 0xc0) == 0x80 &&
1968 (utf[upos + 1] & 0xc0) == 0x80) {
1970 c = ((c & 0x0f) << 12);
1971 c |= ((utf[upos++] & 0x3f) << 6);
1972 c |= (utf[upos++] & 0x3f);
1974 } else if (c >= 0xf0 && c < 0xf5 && upos + 2 < utflen &&
1975 wpos + 1 < wcslen &&
1976 !(c == 0xf0 && utf[upos] < 0x90) && /* over-long encoding */
1977 !(c == 0xf4 && utf[upos] >= 0x90) && /* > \u10ffff */
1978 (utf[upos] & 0xc0) == 0x80 &&
1979 (utf[upos + 1] & 0xc0) == 0x80 &&
1980 (utf[upos + 2] & 0xc0) == 0x80) {
1981 /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
1982 c = ((c & 0x07) << 18);
1983 c |= ((utf[upos++] & 0x3f) << 12);
1984 c |= ((utf[upos++] & 0x3f) << 6);
1985 c |= (utf[upos++] & 0x3f);
1987 wcs[wpos++] = 0xd800 | (c >> 10);
1988 wcs[wpos++] = 0xdc00 | (c & 0x3ff);
1989 } else if (c >= 0xa0) {
1990 /* invalid utf-8 byte, printable unicode char: convert 1:1 */
1993 /* invalid utf-8 byte, non-printable unicode: convert to hex */
1994 static const char *hex = "0123456789abcdef";
1995 wcs[wpos++] = hex[c >> 4];
1997 wcs[wpos++] = hex[c & 0x0f];
2004 int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen)
2006 if (!wcs || !utf || utflen < 1) {
2010 utflen = WideCharToMultiByte(CP_UTF8, 0, wcs, -1, utf, utflen, NULL, NULL);
2018 * Disable MSVCRT command line wildcard expansion (__getmainargs called from
2019 * mingw startup code, see init.c in mingw runtime).
2027 extern int __wgetmainargs(int *argc, wchar_t ***argv, wchar_t ***env, int glob,
2030 static NORETURN void die_startup()
2032 fputs("fatal: not enough memory for initialization", stderr);
2036 void mingw_startup()
2038 int i, len, maxlen, argc;
2040 wchar_t **wenv, **wargv;
2043 /* get wide char arguments and environment */
2045 if (__wgetmainargs(&argc, &wargv, &wenv, _CRT_glob, &si) < 0)
2048 /* determine size of argv and environ conversion buffer */
2049 maxlen = wcslen(_wpgmptr);
2050 for (i = 1; i < argc; i++)
2051 maxlen = max(maxlen, wcslen(wargv[i]));
2052 for (i = 0; wenv[i]; i++)
2053 maxlen = max(maxlen, wcslen(wenv[i]));
2055 /* nedmalloc can't free CRT memory, allocate resizable environment list */
2057 environ_size = i + 1;
2058 ALLOC_GROW(environ, environ_size * sizeof(char*), environ_alloc);
2060 /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */
2061 maxlen = 3 * maxlen + 1;
2062 buffer = xmalloc(maxlen);
2064 /* convert command line arguments and environment to UTF-8 */
2065 len = xwcstoutf(buffer, _wpgmptr, maxlen);
2066 __argv[0] = xmemdupz(buffer, len);
2067 for (i = 1; i < argc; i++) {
2068 len = xwcstoutf(buffer, wargv[i], maxlen);
2069 __argv[i] = xmemdupz(buffer, len);
2071 for (i = 0; wenv[i]; i++) {
2072 len = xwcstoutf(buffer, wenv[i], maxlen);
2073 environ[i] = xmemdupz(buffer, len);
2078 /* initialize critical section for waitpid pinfo_t list */
2079 InitializeCriticalSection(&pinfo_cs);
2081 /* set up default file mode and file modes for stdin/out/err */
2083 _setmode(_fileno(stdin), _O_BINARY);
2084 _setmode(_fileno(stdout), _O_BINARY);
2085 _setmode(_fileno(stderr), _O_BINARY);
2087 /* initialize Unicode console */