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 env_compare(const void *a, const void *b)
906 return strcasecmp(*ea, *eb);
910 struct pinfo_t *next;
914 static struct pinfo_t *pinfo = NULL;
915 CRITICAL_SECTION pinfo_cs;
917 static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
919 int prepend_cmd, int fhin, int fhout, int fherr)
922 PROCESS_INFORMATION pi;
924 wchar_t wcmd[MAX_PATH], wdir[MAX_PATH], *wargs, *wenvblk = NULL;
925 unsigned flags = CREATE_UNICODE_ENVIRONMENT;
928 /* Determine whether or not we are associated to a console */
929 HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
930 FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
931 FILE_ATTRIBUTE_NORMAL, NULL);
932 if (cons == INVALID_HANDLE_VALUE) {
933 /* There is no console associated with this process.
934 * Since the child is a console process, Windows
935 * would normally create a console window. But
936 * since we'll be redirecting std streams, we do
937 * not need the console.
938 * It is necessary to use DETACHED_PROCESS
939 * instead of CREATE_NO_WINDOW to make ssh
940 * recognize that it has no console.
942 flags |= DETACHED_PROCESS;
944 /* There is already a console. If we specified
945 * DETACHED_PROCESS here, too, Windows would
946 * disassociate the child from the console.
947 * The same is true for CREATE_NO_WINDOW.
952 memset(&si, 0, sizeof(si));
954 si.dwFlags = STARTF_USESTDHANDLES;
955 si.hStdInput = winansi_get_osfhandle(fhin);
956 si.hStdOutput = winansi_get_osfhandle(fhout);
957 si.hStdError = winansi_get_osfhandle(fherr);
959 if (xutftowcs_path(wcmd, cmd) < 0)
961 if (dir && xutftowcs_path(wdir, dir) < 0)
964 /* concatenate argv, quoting args as we go */
965 strbuf_init(&args, 0);
967 char *quoted = (char *)quote_arg(cmd);
968 strbuf_addstr(&args, quoted);
972 for (; *argv; argv++) {
973 char *quoted = (char *)quote_arg(*argv);
975 strbuf_addch(&args, ' ');
976 strbuf_addstr(&args, quoted);
981 wargs = xmalloc((2 * args.len + 1) * sizeof(wchar_t));
982 xutftowcs(wargs, args.buf, 2 * args.len + 1);
983 strbuf_release(&args);
987 char **e, **sorted_env;
988 int size = 0, wenvsz = 0, wenvpos = 0;
990 for (e = env; *e; e++)
993 /* environment must be sorted */
994 sorted_env = xmalloc(sizeof(*sorted_env) * (count + 1));
995 memcpy(sorted_env, env, sizeof(*sorted_env) * (count + 1));
996 qsort(sorted_env, count, sizeof(*sorted_env), env_compare);
998 /* create environment block from temporary environment */
999 for (e = sorted_env; *e; e++) {
1000 size = 2 * strlen(*e) + 2; /* +2 for final \0 */
1001 ALLOC_GROW(wenvblk, (wenvpos + size) * sizeof(wchar_t), wenvsz);
1002 wenvpos += xutftowcs(&wenvblk[wenvpos], *e, size) + 1;
1004 /* add final \0 terminator */
1005 wenvblk[wenvpos] = 0;
1009 memset(&pi, 0, sizeof(pi));
1010 ret = CreateProcessW(wcmd, wargs, NULL, NULL, TRUE, flags,
1011 wenvblk, dir ? wdir : NULL, &si, &pi);
1020 CloseHandle(pi.hThread);
1023 * The process ID is the human-readable identifier of the process
1024 * that we want to present in log and error messages. The handle
1025 * is not useful for this purpose. But we cannot close it, either,
1026 * because it is not possible to turn a process ID into a process
1027 * handle after the process terminated.
1028 * Keep the handle in a list for waitpid.
1030 EnterCriticalSection(&pinfo_cs);
1032 struct pinfo_t *info = xmalloc(sizeof(struct pinfo_t));
1033 info->pid = pi.dwProcessId;
1034 info->proc = pi.hProcess;
1038 LeaveCriticalSection(&pinfo_cs);
1040 return (pid_t)pi.dwProcessId;
1043 static pid_t mingw_spawnv(const char *cmd, const char **argv, int prepend_cmd)
1045 return mingw_spawnve_fd(cmd, argv, environ, NULL, prepend_cmd, 0, 1, 2);
1048 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
1050 int fhin, int fhout, int fherr)
1053 char **path = get_path_split();
1054 char *prog = path_lookup(cmd, path, 0);
1061 const char *interpr = parse_interpreter(prog);
1064 const char *argv0 = argv[0];
1065 char *iprog = path_lookup(interpr, path, 1);
1072 pid = mingw_spawnve_fd(iprog, argv, env, dir, 1,
1073 fhin, fhout, fherr);
1079 pid = mingw_spawnve_fd(prog, argv, env, dir, 0,
1080 fhin, fhout, fherr);
1083 free_path_split(path);
1087 static int try_shell_exec(const char *cmd, char *const *argv)
1089 const char *interpr = parse_interpreter(cmd);
1096 path = get_path_split();
1097 prog = path_lookup(interpr, path, 1);
1101 while (argv[argc]) argc++;
1102 argv2 = xmalloc(sizeof(*argv) * (argc+1));
1103 argv2[0] = (char *)cmd; /* full path to the script file */
1104 memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
1105 pid = mingw_spawnv(prog, argv2, 1);
1108 if (waitpid(pid, &status, 0) < 0)
1112 pid = 1; /* indicate that we tried but failed */
1116 free_path_split(path);
1120 int mingw_execv(const char *cmd, char *const *argv)
1122 /* check if git_command is a shell script */
1123 if (!try_shell_exec(cmd, argv)) {
1126 pid = mingw_spawnv(cmd, (const char **)argv, 0);
1129 if (waitpid(pid, &status, 0) < 0)
1136 int mingw_execvp(const char *cmd, char *const *argv)
1138 char **path = get_path_split();
1139 char *prog = path_lookup(cmd, path, 0);
1142 mingw_execv(prog, argv);
1147 free_path_split(path);
1151 int mingw_kill(pid_t pid, int sig)
1153 if (pid > 0 && sig == SIGTERM) {
1154 HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
1156 if (TerminateProcess(h, -1)) {
1161 errno = err_win_to_posix(GetLastError());
1164 } else if (pid > 0 && sig == 0) {
1165 HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
1176 static char **copy_environ(void)
1182 env = xmalloc((i+1)*sizeof(*env));
1183 for (i = 0; environ[i]; i++)
1184 env[i] = xstrdup(environ[i]);
1189 void free_environ(char **env)
1192 for (i = 0; env[i]; i++)
1197 static int lookup_env(char **env, const char *name, size_t nmln)
1201 for (i = 0; env[i]; i++) {
1202 if (0 == strncmp(env[i], name, nmln)
1203 && '=' == env[i][nmln])
1211 * If name contains '=', then sets the variable, otherwise it unsets it
1213 static char **env_setenv(char **env, const char *name)
1215 char *eq = strchrnul(name, '=');
1216 int i = lookup_env(env, name, eq-name);
1220 for (i = 0; env[i]; i++)
1222 env = xrealloc(env, (i+2)*sizeof(*env));
1223 env[i] = xstrdup(name);
1230 env[i] = xstrdup(name);
1239 * Copies global environ and adjusts variables as specified by vars.
1241 char **make_augmented_environ(const char *const *vars)
1243 char **env = copy_environ();
1246 env = env_setenv(env, *vars++);
1251 char *mingw_getenv(const char *name)
1253 char *result = getenv(name);
1254 if (!result && !strcmp(name, "TMPDIR")) {
1255 /* on Windows it is TMP and TEMP */
1256 result = getenv("TMP");
1258 result = getenv("TEMP");
1263 int mingw_putenv(const char *namevalue)
1265 environ = env_setenv(environ, namevalue);
1270 * Note, this isn't a complete replacement for getaddrinfo. It assumes
1271 * that service contains a numerical port, or that it is null. It
1272 * does a simple search using gethostbyname, and returns one IPv4 host
1275 static int WSAAPI getaddrinfo_stub(const char *node, const char *service,
1276 const struct addrinfo *hints,
1277 struct addrinfo **res)
1279 struct hostent *h = NULL;
1280 struct addrinfo *ai;
1281 struct sockaddr_in *sin;
1284 h = gethostbyname(node);
1286 return WSAGetLastError();
1289 ai = xmalloc(sizeof(struct addrinfo));
1292 ai->ai_family = AF_INET;
1293 ai->ai_socktype = hints ? hints->ai_socktype : 0;
1294 switch (ai->ai_socktype) {
1296 ai->ai_protocol = IPPROTO_TCP;
1299 ai->ai_protocol = IPPROTO_UDP;
1302 ai->ai_protocol = 0;
1305 ai->ai_addrlen = sizeof(struct sockaddr_in);
1306 if (hints && (hints->ai_flags & AI_CANONNAME))
1307 ai->ai_canonname = h ? xstrdup(h->h_name) : NULL;
1309 ai->ai_canonname = NULL;
1311 sin = xmalloc(ai->ai_addrlen);
1312 memset(sin, 0, ai->ai_addrlen);
1313 sin->sin_family = AF_INET;
1314 /* Note: getaddrinfo is supposed to allow service to be a string,
1315 * which should be looked up using getservbyname. This is
1316 * currently not implemented */
1318 sin->sin_port = htons(atoi(service));
1320 sin->sin_addr = *(struct in_addr *)h->h_addr;
1321 else if (hints && (hints->ai_flags & AI_PASSIVE))
1322 sin->sin_addr.s_addr = INADDR_ANY;
1324 sin->sin_addr.s_addr = INADDR_LOOPBACK;
1325 ai->ai_addr = (struct sockaddr *)sin;
1330 static void WSAAPI freeaddrinfo_stub(struct addrinfo *res)
1332 free(res->ai_canonname);
1337 static int WSAAPI getnameinfo_stub(const struct sockaddr *sa, socklen_t salen,
1338 char *host, DWORD hostlen,
1339 char *serv, DWORD servlen, int flags)
1341 const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
1342 if (sa->sa_family != AF_INET)
1347 if (host && hostlen > 0) {
1348 struct hostent *ent = NULL;
1349 if (!(flags & NI_NUMERICHOST))
1350 ent = gethostbyaddr((const char *)&sin->sin_addr,
1351 sizeof(sin->sin_addr), AF_INET);
1354 snprintf(host, hostlen, "%s", ent->h_name);
1355 else if (flags & NI_NAMEREQD)
1358 snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr));
1361 if (serv && servlen > 0) {
1362 struct servent *ent = NULL;
1363 if (!(flags & NI_NUMERICSERV))
1364 ent = getservbyport(sin->sin_port,
1365 flags & NI_DGRAM ? "udp" : "tcp");
1368 snprintf(serv, servlen, "%s", ent->s_name);
1370 snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
1376 static HMODULE ipv6_dll = NULL;
1377 static void (WSAAPI *ipv6_freeaddrinfo)(struct addrinfo *res);
1378 static int (WSAAPI *ipv6_getaddrinfo)(const char *node, const char *service,
1379 const struct addrinfo *hints,
1380 struct addrinfo **res);
1381 static int (WSAAPI *ipv6_getnameinfo)(const struct sockaddr *sa, socklen_t salen,
1382 char *host, DWORD hostlen,
1383 char *serv, DWORD servlen, int flags);
1385 * gai_strerror is an inline function in the ws2tcpip.h header, so we
1386 * don't need to try to load that one dynamically.
1389 static void socket_cleanup(void)
1393 FreeLibrary(ipv6_dll);
1395 ipv6_freeaddrinfo = freeaddrinfo_stub;
1396 ipv6_getaddrinfo = getaddrinfo_stub;
1397 ipv6_getnameinfo = getnameinfo_stub;
1400 static void ensure_socket_initialization(void)
1403 static int initialized = 0;
1404 const char *libraries[] = { "ws2_32.dll", "wship6.dll", NULL };
1410 if (WSAStartup(MAKEWORD(2,2), &wsa))
1411 die("unable to initialize winsock subsystem, error %d",
1414 for (name = libraries; *name; name++) {
1415 ipv6_dll = LoadLibrary(*name);
1419 ipv6_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *))
1420 GetProcAddress(ipv6_dll, "freeaddrinfo");
1421 ipv6_getaddrinfo = (int (WSAAPI *)(const char *, const char *,
1422 const struct addrinfo *,
1423 struct addrinfo **))
1424 GetProcAddress(ipv6_dll, "getaddrinfo");
1425 ipv6_getnameinfo = (int (WSAAPI *)(const struct sockaddr *,
1426 socklen_t, char *, DWORD,
1427 char *, DWORD, int))
1428 GetProcAddress(ipv6_dll, "getnameinfo");
1429 if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
1430 FreeLibrary(ipv6_dll);
1435 if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
1436 ipv6_freeaddrinfo = freeaddrinfo_stub;
1437 ipv6_getaddrinfo = getaddrinfo_stub;
1438 ipv6_getnameinfo = getnameinfo_stub;
1441 atexit(socket_cleanup);
1446 int mingw_gethostname(char *name, int namelen)
1448 ensure_socket_initialization();
1449 return gethostname(name, namelen);
1452 #undef gethostbyname
1453 struct hostent *mingw_gethostbyname(const char *host)
1455 ensure_socket_initialization();
1456 return gethostbyname(host);
1459 void mingw_freeaddrinfo(struct addrinfo *res)
1461 ipv6_freeaddrinfo(res);
1464 int mingw_getaddrinfo(const char *node, const char *service,
1465 const struct addrinfo *hints, struct addrinfo **res)
1467 ensure_socket_initialization();
1468 return ipv6_getaddrinfo(node, service, hints, res);
1471 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
1472 char *host, DWORD hostlen, char *serv, DWORD servlen,
1475 ensure_socket_initialization();
1476 return ipv6_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags);
1479 int mingw_socket(int domain, int type, int protocol)
1484 ensure_socket_initialization();
1485 s = WSASocket(domain, type, protocol, NULL, 0, 0);
1486 if (s == INVALID_SOCKET) {
1488 * WSAGetLastError() values are regular BSD error codes
1489 * biased by WSABASEERR.
1490 * However, strerror() does not know about networking
1491 * specific errors, which are values beginning at 38 or so.
1492 * Therefore, we choose to leave the biased error code
1493 * in errno so that _if_ someone looks up the code somewhere,
1494 * then it is at least the number that are usually listed.
1496 errno = WSAGetLastError();
1499 /* convert into a file descriptor */
1500 if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
1502 return error("unable to make a socket file descriptor: %s",
1509 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
1511 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1512 return connect(s, sa, sz);
1516 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz)
1518 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1519 return bind(s, sa, sz);
1523 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen)
1525 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1526 return setsockopt(s, lvl, optname, (const char*)optval, optlen);
1530 int mingw_shutdown(int sockfd, int how)
1532 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1533 return shutdown(s, how);
1537 int mingw_listen(int sockfd, int backlog)
1539 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1540 return listen(s, backlog);
1544 int mingw_accept(int sockfd1, struct sockaddr *sa, socklen_t *sz)
1548 SOCKET s1 = (SOCKET)_get_osfhandle(sockfd1);
1549 SOCKET s2 = accept(s1, sa, sz);
1551 /* convert into a file descriptor */
1552 if ((sockfd2 = _open_osfhandle(s2, O_RDWR|O_BINARY)) < 0) {
1555 return error("unable to make a socket file descriptor: %s",
1562 int mingw_rename(const char *pold, const char *pnew)
1566 wchar_t wpold[MAX_PATH], wpnew[MAX_PATH];
1567 if (xutftowcs_path(wpold, pold) < 0 || xutftowcs_path(wpnew, pnew) < 0)
1571 * Try native rename() first to get errno right.
1572 * It is based on MoveFile(), which cannot overwrite existing files.
1574 if (!_wrename(wpold, wpnew))
1576 if (errno != EEXIST)
1579 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1581 /* TODO: translate more errors */
1582 gle = GetLastError();
1583 if (gle == ERROR_ACCESS_DENIED &&
1584 (attrs = GetFileAttributesW(wpnew)) != INVALID_FILE_ATTRIBUTES) {
1585 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
1589 if ((attrs & FILE_ATTRIBUTE_READONLY) &&
1590 SetFileAttributesW(wpnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
1591 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1593 gle = GetLastError();
1594 /* revert file attributes on failure */
1595 SetFileAttributesW(wpnew, attrs);
1598 if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
1600 * We assume that some other process had the source or
1601 * destination file open at the wrong moment and retry.
1602 * In order to give the other process a higher chance to
1603 * complete its operation, we give up our time slice now.
1604 * If we have to retry again, we do sleep a bit.
1606 Sleep(delay[tries]);
1610 if (gle == ERROR_ACCESS_DENIED &&
1611 ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
1612 "Should I try again?", pold, pnew))
1620 * Note that this doesn't return the actual pagesize, but
1621 * the allocation granularity. If future Windows specific git code
1622 * needs the real getpagesize function, we need to find another solution.
1624 int mingw_getpagesize(void)
1628 return si.dwAllocationGranularity;
1631 struct passwd *getpwuid(int uid)
1633 static char user_name[100];
1634 static struct passwd p;
1636 DWORD len = sizeof(user_name);
1637 if (!GetUserName(user_name, &len))
1639 p.pw_name = user_name;
1640 p.pw_gecos = "unknown";
1645 static HANDLE timer_event;
1646 static HANDLE timer_thread;
1647 static int timer_interval;
1648 static int one_shot;
1649 static sig_handler_t timer_fn = SIG_DFL, sigint_fn = SIG_DFL;
1651 /* The timer works like this:
1652 * The thread, ticktack(), is a trivial routine that most of the time
1653 * only waits to receive the signal to terminate. The main thread tells
1654 * the thread to terminate by setting the timer_event to the signalled
1656 * But ticktack() interrupts the wait state after the timer's interval
1657 * length to call the signal handler.
1660 static unsigned __stdcall ticktack(void *dummy)
1662 while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
1663 mingw_raise(SIGALRM);
1670 static int start_timer_thread(void)
1672 timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1674 timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
1676 return errno = ENOMEM,
1677 error("cannot start timer thread");
1679 return errno = ENOMEM,
1680 error("cannot allocate resources for timer");
1684 static void stop_timer_thread(void)
1687 SetEvent(timer_event); /* tell thread to terminate */
1689 int rc = WaitForSingleObject(timer_thread, 1000);
1690 if (rc == WAIT_TIMEOUT)
1691 error("timer thread did not terminate timely");
1692 else if (rc != WAIT_OBJECT_0)
1693 error("waiting for timer thread failed: %lu",
1695 CloseHandle(timer_thread);
1698 CloseHandle(timer_event);
1700 timer_thread = NULL;
1703 static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2)
1705 return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec;
1708 int setitimer(int type, struct itimerval *in, struct itimerval *out)
1710 static const struct timeval zero;
1711 static int atexit_done;
1714 return errno = EINVAL,
1715 error("setitimer param 3 != NULL not implemented");
1716 if (!is_timeval_eq(&in->it_interval, &zero) &&
1717 !is_timeval_eq(&in->it_interval, &in->it_value))
1718 return errno = EINVAL,
1719 error("setitimer: it_interval must be zero or eq it_value");
1722 stop_timer_thread();
1724 if (is_timeval_eq(&in->it_value, &zero) &&
1725 is_timeval_eq(&in->it_interval, &zero))
1728 timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000;
1729 one_shot = is_timeval_eq(&in->it_interval, &zero);
1731 atexit(stop_timer_thread);
1734 return start_timer_thread();
1737 int sigaction(int sig, struct sigaction *in, struct sigaction *out)
1740 return errno = EINVAL,
1741 error("sigaction only implemented for SIGALRM");
1743 return errno = EINVAL,
1744 error("sigaction: param 3 != NULL not implemented");
1746 timer_fn = in->sa_handler;
1751 sig_handler_t mingw_signal(int sig, sig_handler_t handler)
1763 sigint_fn = handler;
1767 return signal(sig, handler);
1774 int mingw_raise(int sig)
1778 if (timer_fn == SIG_DFL) {
1779 if (isatty(STDERR_FILENO))
1780 fputs("Alarm clock\n", stderr);
1781 exit(128 + SIGALRM);
1782 } else if (timer_fn != SIG_IGN)
1787 if (sigint_fn == SIG_DFL)
1789 else if (sigint_fn != SIG_IGN)
1799 static const char *make_backslash_path(const char *path)
1801 static char buf[PATH_MAX + 1];
1804 if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
1805 die("Too long path: %.*s", 60, path);
1807 for (c = buf; *c; c++) {
1814 void mingw_open_html(const char *unixpath)
1816 const char *htmlpath = make_backslash_path(unixpath);
1817 typedef HINSTANCE (WINAPI *T)(HWND, const char *,
1818 const char *, const char *, const char *, INT);
1823 shell32 = LoadLibrary("shell32.dll");
1825 die("cannot load shell32.dll");
1826 ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA");
1828 die("cannot run browser");
1830 printf("Launching default browser to display HTML ...\n");
1831 r = (int)ShellExecute(NULL, "open", htmlpath, NULL, "\\", SW_SHOWNORMAL);
1832 FreeLibrary(shell32);
1833 /* see the MSDN documentation referring to the result codes here */
1835 die("failed to launch browser for %.*s", MAX_PATH, unixpath);
1839 int link(const char *oldpath, const char *newpath)
1841 typedef BOOL (WINAPI *T)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES);
1842 static T create_hard_link = NULL;
1843 wchar_t woldpath[MAX_PATH], wnewpath[MAX_PATH];
1844 if (xutftowcs_path(woldpath, oldpath) < 0 ||
1845 xutftowcs_path(wnewpath, newpath) < 0)
1848 if (!create_hard_link) {
1849 create_hard_link = (T) GetProcAddress(
1850 GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
1851 if (!create_hard_link)
1852 create_hard_link = (T)-1;
1854 if (create_hard_link == (T)-1) {
1858 if (!create_hard_link(wnewpath, woldpath, NULL)) {
1859 errno = err_win_to_posix(GetLastError());
1865 pid_t waitpid(pid_t pid, int *status, int options)
1867 HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
1874 if (pid > 0 && options & WNOHANG) {
1875 if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) {
1879 options &= ~WNOHANG;
1883 struct pinfo_t **ppinfo;
1884 if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
1890 GetExitCodeProcess(h, (LPDWORD)status);
1892 EnterCriticalSection(&pinfo_cs);
1896 struct pinfo_t *info = *ppinfo;
1897 if (info->pid == pid) {
1898 CloseHandle(info->proc);
1899 *ppinfo = info->next;
1903 ppinfo = &info->next;
1906 LeaveCriticalSection(&pinfo_cs);
1917 int mingw_offset_1st_component(const char *path)
1920 if (has_dos_drive_prefix(path))
1924 else if (is_dir_sep(path[0]) && is_dir_sep(path[1])) {
1926 /* skip server name */
1927 char *pos = strpbrk(path + 2, "\\/");
1929 return 0; /* Error: malformed unc path */
1933 } while (*pos && !is_dir_sep(*pos));
1935 offset = pos - path;
1938 return offset + is_dir_sep(path[offset]);
1941 int xutftowcsn(wchar_t *wcs, const char *utfs, size_t wcslen, int utflen)
1943 int upos = 0, wpos = 0;
1944 const unsigned char *utf = (const unsigned char*) utfs;
1945 if (!utf || !wcs || wcslen < 1) {
1949 /* reserve space for \0 */
1954 while (upos < utflen) {
1955 int c = utf[upos++] & 0xff;
1956 if (utflen == INT_MAX && c == 0)
1959 if (wpos >= wcslen) {
1968 } else if (c >= 0xc2 && c < 0xe0 && upos < utflen &&
1969 (utf[upos] & 0xc0) == 0x80) {
1971 c = ((c & 0x1f) << 6);
1972 c |= (utf[upos++] & 0x3f);
1974 } else if (c >= 0xe0 && c < 0xf0 && upos + 1 < utflen &&
1975 !(c == 0xe0 && utf[upos] < 0xa0) && /* over-long encoding */
1976 (utf[upos] & 0xc0) == 0x80 &&
1977 (utf[upos + 1] & 0xc0) == 0x80) {
1979 c = ((c & 0x0f) << 12);
1980 c |= ((utf[upos++] & 0x3f) << 6);
1981 c |= (utf[upos++] & 0x3f);
1983 } else if (c >= 0xf0 && c < 0xf5 && upos + 2 < utflen &&
1984 wpos + 1 < wcslen &&
1985 !(c == 0xf0 && utf[upos] < 0x90) && /* over-long encoding */
1986 !(c == 0xf4 && utf[upos] >= 0x90) && /* > \u10ffff */
1987 (utf[upos] & 0xc0) == 0x80 &&
1988 (utf[upos + 1] & 0xc0) == 0x80 &&
1989 (utf[upos + 2] & 0xc0) == 0x80) {
1990 /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
1991 c = ((c & 0x07) << 18);
1992 c |= ((utf[upos++] & 0x3f) << 12);
1993 c |= ((utf[upos++] & 0x3f) << 6);
1994 c |= (utf[upos++] & 0x3f);
1996 wcs[wpos++] = 0xd800 | (c >> 10);
1997 wcs[wpos++] = 0xdc00 | (c & 0x3ff);
1998 } else if (c >= 0xa0) {
1999 /* invalid utf-8 byte, printable unicode char: convert 1:1 */
2002 /* invalid utf-8 byte, non-printable unicode: convert to hex */
2003 static const char *hex = "0123456789abcdef";
2004 wcs[wpos++] = hex[c >> 4];
2006 wcs[wpos++] = hex[c & 0x0f];
2013 int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen)
2015 if (!wcs || !utf || utflen < 1) {
2019 utflen = WideCharToMultiByte(CP_UTF8, 0, wcs, -1, utf, utflen, NULL, NULL);
2027 * Disable MSVCRT command line wildcard expansion (__getmainargs called from
2028 * mingw startup code, see init.c in mingw runtime).
2036 extern int __wgetmainargs(int *argc, wchar_t ***argv, wchar_t ***env, int glob,
2039 static NORETURN void die_startup()
2041 fputs("fatal: not enough memory for initialization", stderr);
2045 void mingw_startup()
2047 int i, len, maxlen, argc;
2049 wchar_t **wenv, **wargv;
2052 /* get wide char arguments and environment */
2054 if (__wgetmainargs(&argc, &wargv, &wenv, _CRT_glob, &si) < 0)
2057 /* determine size of argv and environ conversion buffer */
2058 maxlen = wcslen(_wpgmptr);
2059 for (i = 1; i < argc; i++)
2060 maxlen = max(maxlen, wcslen(wargv[i]));
2061 for (i = 0; wenv[i]; i++)
2062 maxlen = max(maxlen, wcslen(wenv[i]));
2064 /* nedmalloc can't free CRT memory, allocate resizable environment list */
2065 environ = xcalloc(i + 1, sizeof(char*));
2067 /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */
2068 maxlen = 3 * maxlen + 1;
2069 buffer = xmalloc(maxlen);
2071 /* convert command line arguments and environment to UTF-8 */
2072 len = xwcstoutf(buffer, _wpgmptr, maxlen);
2073 __argv[0] = xmemdupz(buffer, len);
2074 for (i = 1; i < argc; i++) {
2075 len = xwcstoutf(buffer, wargv[i], maxlen);
2076 __argv[i] = xmemdupz(buffer, len);
2078 for (i = 0; wenv[i]; i++) {
2079 len = xwcstoutf(buffer, wenv[i], maxlen);
2080 environ[i] = xmemdupz(buffer, len);
2084 /* initialize critical section for waitpid pinfo_t list */
2085 InitializeCriticalSection(&pinfo_cs);
2087 /* set up default file mode and file modes for stdin/out/err */
2089 _setmode(_fileno(stdin), _O_BINARY);
2090 _setmode(_fileno(stdout), _O_BINARY);
2091 _setmode(_fileno(stderr), _O_BINARY);
2093 /* initialize Unicode console */