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_ACCMODE) != O_RDONLY && 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)
398 ssize_t mingw_write(int fd, const void *buf, size_t len)
400 ssize_t result = write(fd, buf, len);
402 if (result < 0 && errno == EINVAL && buf) {
403 /* check if fd is a pipe */
404 HANDLE h = (HANDLE) _get_osfhandle(fd);
405 if (GetFileType(h) == FILE_TYPE_PIPE)
414 int mingw_access(const char *filename, int mode)
416 wchar_t wfilename[MAX_PATH];
417 if (xutftowcs_path(wfilename, filename) < 0)
419 /* X_OK is not supported by the MSVCRT version */
420 return _waccess(wfilename, mode & ~X_OK);
423 int mingw_chdir(const char *dirname)
425 wchar_t wdirname[MAX_PATH];
426 if (xutftowcs_path(wdirname, dirname) < 0)
428 return _wchdir(wdirname);
431 int mingw_chmod(const char *filename, int mode)
433 wchar_t wfilename[MAX_PATH];
434 if (xutftowcs_path(wfilename, filename) < 0)
436 return _wchmod(wfilename, mode);
440 * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
441 * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
443 static inline long long filetime_to_hnsec(const FILETIME *ft)
445 long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
446 /* Windows to Unix Epoch conversion */
447 return winTime - 116444736000000000LL;
450 static inline time_t filetime_to_time_t(const FILETIME *ft)
452 return (time_t)(filetime_to_hnsec(ft) / 10000000);
455 /* We keep the do_lstat code in a separate function to avoid recursion.
456 * When a path ends with a slash, the stat will fail with ENOENT. In
457 * this case, we strip the trailing slashes and stat again.
459 * If follow is true then act like stat() and report on the link
460 * target. Otherwise report on the link itself.
462 static int do_lstat(int follow, const char *file_name, struct stat *buf)
464 WIN32_FILE_ATTRIBUTE_DATA fdata;
465 wchar_t wfilename[MAX_PATH];
466 if (xutftowcs_path(wfilename, file_name) < 0)
469 if (GetFileAttributesExW(wfilename, GetFileExInfoStandard, &fdata)) {
474 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
475 buf->st_size = fdata.nFileSizeLow |
476 (((off_t)fdata.nFileSizeHigh)<<32);
477 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
478 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
479 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
480 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
481 if (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
482 WIN32_FIND_DATAW findbuf;
483 HANDLE handle = FindFirstFileW(wfilename, &findbuf);
484 if (handle != INVALID_HANDLE_VALUE) {
485 if ((findbuf.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
486 (findbuf.dwReserved0 == IO_REPARSE_TAG_SYMLINK)) {
488 char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
489 buf->st_size = readlink(file_name, buffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE);
491 buf->st_mode = S_IFLNK;
493 buf->st_mode |= S_IREAD;
494 if (!(findbuf.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
495 buf->st_mode |= S_IWRITE;
502 switch (GetLastError()) {
503 case ERROR_ACCESS_DENIED:
504 case ERROR_SHARING_VIOLATION:
505 case ERROR_LOCK_VIOLATION:
506 case ERROR_SHARING_BUFFER_EXCEEDED:
509 case ERROR_BUFFER_OVERFLOW:
510 errno = ENAMETOOLONG;
512 case ERROR_NOT_ENOUGH_MEMORY:
522 /* We provide our own lstat/fstat functions, since the provided
523 * lstat/fstat functions are so slow. These stat functions are
524 * tailored for Git's usage (read: fast), and are not meant to be
525 * complete. Note that Git stat()s are redirected to mingw_lstat()
526 * too, since Windows doesn't really handle symlinks that well.
528 static int do_stat_internal(int follow, const char *file_name, struct stat *buf)
531 char alt_name[PATH_MAX];
533 if (!do_lstat(follow, file_name, buf))
536 /* if file_name ended in a '/', Windows returned ENOENT;
537 * try again without trailing slashes
542 namelen = strlen(file_name);
543 if (namelen && file_name[namelen-1] != '/')
545 while (namelen && file_name[namelen-1] == '/')
547 if (!namelen || namelen >= PATH_MAX)
550 memcpy(alt_name, file_name, namelen);
551 alt_name[namelen] = 0;
552 return do_lstat(follow, alt_name, buf);
555 int mingw_lstat(const char *file_name, struct stat *buf)
557 return do_stat_internal(0, file_name, buf);
559 int mingw_stat(const char *file_name, struct stat *buf)
561 return do_stat_internal(1, file_name, buf);
564 int mingw_fstat(int fd, struct stat *buf)
566 HANDLE fh = (HANDLE)_get_osfhandle(fd);
567 BY_HANDLE_FILE_INFORMATION fdata;
569 if (fh == INVALID_HANDLE_VALUE) {
573 /* direct non-file handles to MS's fstat() */
574 if (GetFileType(fh) != FILE_TYPE_DISK)
575 return _fstati64(fd, buf);
577 if (GetFileInformationByHandle(fh, &fdata)) {
582 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
583 buf->st_size = fdata.nFileSizeLow |
584 (((off_t)fdata.nFileSizeHigh)<<32);
585 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
586 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
587 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
588 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
595 static inline void time_t_to_filetime(time_t t, FILETIME *ft)
597 long long winTime = t * 10000000LL + 116444736000000000LL;
598 ft->dwLowDateTime = winTime;
599 ft->dwHighDateTime = winTime >> 32;
602 int mingw_utime (const char *file_name, const struct utimbuf *times)
607 wchar_t wfilename[MAX_PATH];
608 if (xutftowcs_path(wfilename, file_name) < 0)
611 /* must have write permission */
612 attrs = GetFileAttributesW(wfilename);
613 if (attrs != INVALID_FILE_ATTRIBUTES &&
614 (attrs & FILE_ATTRIBUTE_READONLY)) {
615 /* ignore errors here; open() will report them */
616 SetFileAttributesW(wfilename, attrs & ~FILE_ATTRIBUTE_READONLY);
619 if ((fh = _wopen(wfilename, O_RDWR | O_BINARY)) < 0) {
625 time_t_to_filetime(times->modtime, &mft);
626 time_t_to_filetime(times->actime, &aft);
628 GetSystemTimeAsFileTime(&mft);
631 if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
639 if (attrs != INVALID_FILE_ATTRIBUTES &&
640 (attrs & FILE_ATTRIBUTE_READONLY)) {
641 /* ignore errors again */
642 SetFileAttributesW(wfilename, attrs);
647 unsigned int sleep (unsigned int seconds)
653 char *mingw_mktemp(char *template)
655 wchar_t wtemplate[MAX_PATH];
656 if (xutftowcs_path(wtemplate, template) < 0)
658 if (!_wmktemp(wtemplate))
660 if (xwcstoutf(template, wtemplate, strlen(template) + 1) < 0)
665 int mkstemp(char *template)
667 char *filename = mktemp(template);
668 if (filename == NULL)
670 return open(filename, O_RDWR | O_CREAT, 0600);
673 int gettimeofday(struct timeval *tv, void *tz)
678 GetSystemTimeAsFileTime(&ft);
679 hnsec = filetime_to_hnsec(&ft);
680 tv->tv_sec = hnsec / 10000000;
681 tv->tv_usec = (hnsec % 10000000) / 10;
685 int pipe(int filedes[2])
689 /* this creates non-inheritable handles */
690 if (!CreatePipe(&h[0], &h[1], NULL, 8192)) {
691 errno = err_win_to_posix(GetLastError());
694 filedes[0] = _open_osfhandle((int)h[0], O_NOINHERIT);
695 if (filedes[0] < 0) {
700 filedes[1] = _open_osfhandle((int)h[1], O_NOINHERIT);
701 if (filedes[1] < 0) {
709 struct tm *gmtime_r(const time_t *timep, struct tm *result)
711 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
712 memcpy(result, gmtime(timep), sizeof(struct tm));
716 struct tm *localtime_r(const time_t *timep, struct tm *result)
718 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
719 memcpy(result, localtime(timep), sizeof(struct tm));
723 char *mingw_getcwd(char *pointer, int len)
726 wchar_t wpointer[MAX_PATH];
727 if (!_wgetcwd(wpointer, ARRAY_SIZE(wpointer)))
729 if (xwcstoutf(pointer, wpointer, len) < 0)
731 for (i = 0; pointer[i]; i++)
732 if (pointer[i] == '\\')
738 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
739 * (Parsing C++ Command-Line Arguments)
741 static const char *quote_arg(const char *arg)
743 /* count chars to quote */
745 int force_quotes = 0;
748 if (!*p) force_quotes = 1;
750 if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'')
754 else if (*p == '\\') {
768 if (!force_quotes && n == 0)
771 /* insert \ where necessary */
772 d = q = xmalloc(len+n+3);
777 else if (*arg == '\\') {
779 while (*arg == '\\') {
796 static const char *parse_interpreter(const char *cmd)
798 static char buf[100];
802 /* don't even try a .exe */
804 if (n >= 4 && !strcasecmp(cmd+n-4, ".exe"))
807 fd = open(cmd, O_RDONLY);
810 n = read(fd, buf, sizeof(buf)-1);
812 if (n < 4) /* at least '#!/x' and not error */
815 if (buf[0] != '#' || buf[1] != '!')
818 p = buf + strcspn(buf, "\r\n");
823 if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\')))
826 if ((opt = strchr(p+1, ' ')))
832 * Splits the PATH into parts.
834 static char **get_path_split(void)
836 char *p, **path, *envpath = mingw_getenv("PATH");
839 if (!envpath || !*envpath)
842 envpath = xstrdup(envpath);
848 if (*dir) { /* not earlier, catches series of ; */
855 path = xmalloc((n+1)*sizeof(char *));
860 path[i++] = xstrdup(p);
870 static void free_path_split(char **path)
883 * exe_only means that we only want to detect .exe files, but not scripts
884 * (which do not have an extension)
886 static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only)
889 snprintf(path, sizeof(path), "%s/%s.exe", dir, cmd);
891 if (!isexe && access(path, F_OK) == 0)
892 return xstrdup(path);
893 path[strlen(path)-4] = '\0';
894 if ((!exe_only || isexe) && access(path, F_OK) == 0)
895 if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY))
896 return xstrdup(path);
901 * Determines the absolute path of cmd using the split path in path.
902 * If cmd contains a slash or backslash, no lookup is performed.
904 static char *path_lookup(const char *cmd, char **path, int exe_only)
907 int len = strlen(cmd);
908 int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe");
910 if (strchr(cmd, '/') || strchr(cmd, '\\'))
913 while (!prog && *path)
914 prog = lookup_prog(*path++, cmd, isexe, exe_only);
919 static int do_putenv(char **env, const char *name, int size, int free_old);
921 /* used number of elements of environ array, including terminating NULL */
922 static int environ_size = 0;
923 /* allocated size of environ array, in bytes */
924 static int environ_alloc = 0;
927 * Create environment block suitable for CreateProcess. Merges current
928 * process environment and the supplied environment changes.
930 static wchar_t *make_environment_block(char **deltaenv)
932 wchar_t *wenvblk = NULL;
934 int i = 0, size = environ_size, wenvsz = 0, wenvpos = 0;
936 while (deltaenv && deltaenv[i])
939 /* copy the environment, leaving space for changes */
940 tmpenv = xmalloc((size + i) * sizeof(char*));
941 memcpy(tmpenv, environ, size * sizeof(char*));
943 /* merge supplied environment changes into the temporary environment */
944 for (i = 0; deltaenv && deltaenv[i]; i++)
945 size = do_putenv(tmpenv, deltaenv[i], size, 0);
947 /* create environment block from temporary environment */
948 for (i = 0; tmpenv[i]; i++) {
949 size = 2 * strlen(tmpenv[i]) + 2; /* +2 for final \0 */
950 ALLOC_GROW(wenvblk, (wenvpos + size) * sizeof(wchar_t), wenvsz);
951 wenvpos += xutftowcs(&wenvblk[wenvpos], tmpenv[i], size) + 1;
953 /* add final \0 terminator */
954 wenvblk[wenvpos] = 0;
960 struct pinfo_t *next;
964 static struct pinfo_t *pinfo = NULL;
965 CRITICAL_SECTION pinfo_cs;
967 static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **deltaenv,
969 int prepend_cmd, int fhin, int fhout, int fherr)
972 PROCESS_INFORMATION pi;
974 wchar_t wcmd[MAX_PATH], wdir[MAX_PATH], *wargs, *wenvblk = NULL;
975 unsigned flags = CREATE_UNICODE_ENVIRONMENT;
978 /* Determine whether or not we are associated to a console */
979 HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
980 FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
981 FILE_ATTRIBUTE_NORMAL, NULL);
982 if (cons == INVALID_HANDLE_VALUE) {
983 /* There is no console associated with this process.
984 * Since the child is a console process, Windows
985 * would normally create a console window. But
986 * since we'll be redirecting std streams, we do
987 * not need the console.
988 * It is necessary to use DETACHED_PROCESS
989 * instead of CREATE_NO_WINDOW to make ssh
990 * recognize that it has no console.
992 flags |= DETACHED_PROCESS;
994 /* There is already a console. If we specified
995 * DETACHED_PROCESS here, too, Windows would
996 * disassociate the child from the console.
997 * The same is true for CREATE_NO_WINDOW.
1002 memset(&si, 0, sizeof(si));
1004 si.dwFlags = STARTF_USESTDHANDLES;
1005 si.hStdInput = winansi_get_osfhandle(fhin);
1006 si.hStdOutput = winansi_get_osfhandle(fhout);
1007 si.hStdError = winansi_get_osfhandle(fherr);
1009 if (xutftowcs_path(wcmd, cmd) < 0)
1011 if (dir && xutftowcs_path(wdir, dir) < 0)
1014 /* concatenate argv, quoting args as we go */
1015 strbuf_init(&args, 0);
1017 char *quoted = (char *)quote_arg(cmd);
1018 strbuf_addstr(&args, quoted);
1022 for (; *argv; argv++) {
1023 char *quoted = (char *)quote_arg(*argv);
1025 strbuf_addch(&args, ' ');
1026 strbuf_addstr(&args, quoted);
1027 if (quoted != *argv)
1031 wargs = xmalloc((2 * args.len + 1) * sizeof(wchar_t));
1032 xutftowcs(wargs, args.buf, 2 * args.len + 1);
1033 strbuf_release(&args);
1035 wenvblk = make_environment_block(deltaenv);
1037 memset(&pi, 0, sizeof(pi));
1038 ret = CreateProcessW(wcmd, wargs, NULL, NULL, TRUE, flags,
1039 wenvblk, dir ? wdir : NULL, &si, &pi);
1048 CloseHandle(pi.hThread);
1051 * The process ID is the human-readable identifier of the process
1052 * that we want to present in log and error messages. The handle
1053 * is not useful for this purpose. But we cannot close it, either,
1054 * because it is not possible to turn a process ID into a process
1055 * handle after the process terminated.
1056 * Keep the handle in a list for waitpid.
1058 EnterCriticalSection(&pinfo_cs);
1060 struct pinfo_t *info = xmalloc(sizeof(struct pinfo_t));
1061 info->pid = pi.dwProcessId;
1062 info->proc = pi.hProcess;
1066 LeaveCriticalSection(&pinfo_cs);
1068 return (pid_t)pi.dwProcessId;
1071 static pid_t mingw_spawnv(const char *cmd, const char **argv, int prepend_cmd)
1073 return mingw_spawnve_fd(cmd, argv, NULL, NULL, prepend_cmd, 0, 1, 2);
1076 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **deltaenv,
1078 int fhin, int fhout, int fherr)
1081 char **path = get_path_split();
1082 char *prog = path_lookup(cmd, path, 0);
1089 const char *interpr = parse_interpreter(prog);
1092 const char *argv0 = argv[0];
1093 char *iprog = path_lookup(interpr, path, 1);
1100 pid = mingw_spawnve_fd(iprog, argv, deltaenv, dir, 1,
1101 fhin, fhout, fherr);
1107 pid = mingw_spawnve_fd(prog, argv, deltaenv, dir, 0,
1108 fhin, fhout, fherr);
1111 free_path_split(path);
1115 static int try_shell_exec(const char *cmd, char *const *argv)
1117 const char *interpr = parse_interpreter(cmd);
1124 path = get_path_split();
1125 prog = path_lookup(interpr, path, 1);
1129 while (argv[argc]) argc++;
1130 argv2 = xmalloc(sizeof(*argv) * (argc+1));
1131 argv2[0] = (char *)cmd; /* full path to the script file */
1132 memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
1133 pid = mingw_spawnv(prog, argv2, 1);
1136 if (waitpid(pid, &status, 0) < 0)
1140 pid = 1; /* indicate that we tried but failed */
1144 free_path_split(path);
1148 int mingw_execv(const char *cmd, char *const *argv)
1150 /* check if git_command is a shell script */
1151 if (!try_shell_exec(cmd, argv)) {
1154 pid = mingw_spawnv(cmd, (const char **)argv, 0);
1157 if (waitpid(pid, &status, 0) < 0)
1164 int mingw_execvp(const char *cmd, char *const *argv)
1166 char **path = get_path_split();
1167 char *prog = path_lookup(cmd, path, 0);
1170 mingw_execv(prog, argv);
1175 free_path_split(path);
1179 int mingw_kill(pid_t pid, int sig)
1181 if (pid > 0 && sig == SIGTERM) {
1182 HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
1184 if (TerminateProcess(h, -1)) {
1189 errno = err_win_to_posix(GetLastError());
1192 } else if (pid > 0 && sig == 0) {
1193 HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
1205 * Compare environment entries by key (i.e. stopping at '=' or '\0').
1207 static int compareenv(const void *v1, const void *v2)
1209 const char *e1 = *(const char**)v1;
1210 const char *e2 = *(const char**)v2;
1215 c1 = (c1 == '=') ? 0 : tolower(c1);
1216 c2 = (c2 == '=') ? 0 : tolower(c2);
1226 static int bsearchenv(char **env, const char *name, size_t size)
1228 unsigned low = 0, high = size;
1229 while (low < high) {
1230 unsigned mid = low + ((high - low) >> 1);
1231 int cmp = compareenv(&env[mid], &name);
1239 return ~low; /* not found, return 1's complement of insert position */
1243 * If name contains '=', then sets the variable, otherwise it unsets it
1244 * Size includes the terminating NULL. Env must have room for size + 1 entries
1245 * (in case of insert). Returns the new size. Optionally frees removed entries.
1247 static int do_putenv(char **env, const char *name, int size, int free_old)
1249 int i = bsearchenv(env, name, size - 1);
1251 /* optionally free removed / replaced entry */
1252 if (i >= 0 && free_old)
1255 if (strchr(name, '=')) {
1256 /* if new value ('key=value') is specified, insert or replace entry */
1259 memmove(&env[i + 1], &env[i], (size - i) * sizeof(char*));
1262 env[i] = (char*) name;
1263 } else if (i >= 0) {
1264 /* otherwise ('key') remove existing entry */
1266 memmove(&env[i], &env[i + 1], (size - i) * sizeof(char*));
1271 char *mingw_getenv(const char *name)
1274 int pos = bsearchenv(environ, name, environ_size - 1);
1277 value = strchr(environ[pos], '=');
1278 return value ? &value[1] : NULL;
1281 int mingw_putenv(const char *namevalue)
1283 ALLOC_GROW(environ, (environ_size + 1) * sizeof(char*), environ_alloc);
1284 environ_size = do_putenv(environ, namevalue, environ_size, 1);
1289 * Note, this isn't a complete replacement for getaddrinfo. It assumes
1290 * that service contains a numerical port, or that it is null. It
1291 * does a simple search using gethostbyname, and returns one IPv4 host
1294 static int WSAAPI getaddrinfo_stub(const char *node, const char *service,
1295 const struct addrinfo *hints,
1296 struct addrinfo **res)
1298 struct hostent *h = NULL;
1299 struct addrinfo *ai;
1300 struct sockaddr_in *sin;
1303 h = gethostbyname(node);
1305 return WSAGetLastError();
1308 ai = xmalloc(sizeof(struct addrinfo));
1311 ai->ai_family = AF_INET;
1312 ai->ai_socktype = hints ? hints->ai_socktype : 0;
1313 switch (ai->ai_socktype) {
1315 ai->ai_protocol = IPPROTO_TCP;
1318 ai->ai_protocol = IPPROTO_UDP;
1321 ai->ai_protocol = 0;
1324 ai->ai_addrlen = sizeof(struct sockaddr_in);
1325 if (hints && (hints->ai_flags & AI_CANONNAME))
1326 ai->ai_canonname = h ? xstrdup(h->h_name) : NULL;
1328 ai->ai_canonname = NULL;
1330 sin = xcalloc(1, ai->ai_addrlen);
1331 sin->sin_family = AF_INET;
1332 /* Note: getaddrinfo is supposed to allow service to be a string,
1333 * which should be looked up using getservbyname. This is
1334 * currently not implemented */
1336 sin->sin_port = htons(atoi(service));
1338 sin->sin_addr = *(struct in_addr *)h->h_addr;
1339 else if (hints && (hints->ai_flags & AI_PASSIVE))
1340 sin->sin_addr.s_addr = INADDR_ANY;
1342 sin->sin_addr.s_addr = INADDR_LOOPBACK;
1343 ai->ai_addr = (struct sockaddr *)sin;
1348 static void WSAAPI freeaddrinfo_stub(struct addrinfo *res)
1350 free(res->ai_canonname);
1355 static int WSAAPI getnameinfo_stub(const struct sockaddr *sa, socklen_t salen,
1356 char *host, DWORD hostlen,
1357 char *serv, DWORD servlen, int flags)
1359 const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
1360 if (sa->sa_family != AF_INET)
1365 if (host && hostlen > 0) {
1366 struct hostent *ent = NULL;
1367 if (!(flags & NI_NUMERICHOST))
1368 ent = gethostbyaddr((const char *)&sin->sin_addr,
1369 sizeof(sin->sin_addr), AF_INET);
1372 snprintf(host, hostlen, "%s", ent->h_name);
1373 else if (flags & NI_NAMEREQD)
1376 snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr));
1379 if (serv && servlen > 0) {
1380 struct servent *ent = NULL;
1381 if (!(flags & NI_NUMERICSERV))
1382 ent = getservbyport(sin->sin_port,
1383 flags & NI_DGRAM ? "udp" : "tcp");
1386 snprintf(serv, servlen, "%s", ent->s_name);
1388 snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
1394 static HMODULE ipv6_dll = NULL;
1395 static void (WSAAPI *ipv6_freeaddrinfo)(struct addrinfo *res);
1396 static int (WSAAPI *ipv6_getaddrinfo)(const char *node, const char *service,
1397 const struct addrinfo *hints,
1398 struct addrinfo **res);
1399 static int (WSAAPI *ipv6_getnameinfo)(const struct sockaddr *sa, socklen_t salen,
1400 char *host, DWORD hostlen,
1401 char *serv, DWORD servlen, int flags);
1403 * gai_strerror is an inline function in the ws2tcpip.h header, so we
1404 * don't need to try to load that one dynamically.
1407 static void socket_cleanup(void)
1411 FreeLibrary(ipv6_dll);
1413 ipv6_freeaddrinfo = freeaddrinfo_stub;
1414 ipv6_getaddrinfo = getaddrinfo_stub;
1415 ipv6_getnameinfo = getnameinfo_stub;
1418 static void ensure_socket_initialization(void)
1421 static int initialized = 0;
1422 const char *libraries[] = { "ws2_32.dll", "wship6.dll", NULL };
1428 if (WSAStartup(MAKEWORD(2,2), &wsa))
1429 die("unable to initialize winsock subsystem, error %d",
1432 for (name = libraries; *name; name++) {
1433 ipv6_dll = LoadLibrary(*name);
1437 ipv6_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *))
1438 GetProcAddress(ipv6_dll, "freeaddrinfo");
1439 ipv6_getaddrinfo = (int (WSAAPI *)(const char *, const char *,
1440 const struct addrinfo *,
1441 struct addrinfo **))
1442 GetProcAddress(ipv6_dll, "getaddrinfo");
1443 ipv6_getnameinfo = (int (WSAAPI *)(const struct sockaddr *,
1444 socklen_t, char *, DWORD,
1445 char *, DWORD, int))
1446 GetProcAddress(ipv6_dll, "getnameinfo");
1447 if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
1448 FreeLibrary(ipv6_dll);
1453 if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
1454 ipv6_freeaddrinfo = freeaddrinfo_stub;
1455 ipv6_getaddrinfo = getaddrinfo_stub;
1456 ipv6_getnameinfo = getnameinfo_stub;
1459 atexit(socket_cleanup);
1464 int mingw_gethostname(char *name, int namelen)
1466 ensure_socket_initialization();
1467 return gethostname(name, namelen);
1470 #undef gethostbyname
1471 struct hostent *mingw_gethostbyname(const char *host)
1473 ensure_socket_initialization();
1474 return gethostbyname(host);
1477 void mingw_freeaddrinfo(struct addrinfo *res)
1479 ipv6_freeaddrinfo(res);
1482 int mingw_getaddrinfo(const char *node, const char *service,
1483 const struct addrinfo *hints, struct addrinfo **res)
1485 ensure_socket_initialization();
1486 return ipv6_getaddrinfo(node, service, hints, res);
1489 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
1490 char *host, DWORD hostlen, char *serv, DWORD servlen,
1493 ensure_socket_initialization();
1494 return ipv6_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags);
1497 int mingw_socket(int domain, int type, int protocol)
1502 ensure_socket_initialization();
1503 s = WSASocket(domain, type, protocol, NULL, 0, 0);
1504 if (s == INVALID_SOCKET) {
1506 * WSAGetLastError() values are regular BSD error codes
1507 * biased by WSABASEERR.
1508 * However, strerror() does not know about networking
1509 * specific errors, which are values beginning at 38 or so.
1510 * Therefore, we choose to leave the biased error code
1511 * in errno so that _if_ someone looks up the code somewhere,
1512 * then it is at least the number that are usually listed.
1514 errno = WSAGetLastError();
1517 /* convert into a file descriptor */
1518 if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
1520 return error("unable to make a socket file descriptor: %s",
1527 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
1529 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1530 return connect(s, sa, sz);
1534 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz)
1536 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1537 return bind(s, sa, sz);
1541 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen)
1543 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1544 return setsockopt(s, lvl, optname, (const char*)optval, optlen);
1548 int mingw_shutdown(int sockfd, int how)
1550 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1551 return shutdown(s, how);
1555 int mingw_listen(int sockfd, int backlog)
1557 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1558 return listen(s, backlog);
1562 int mingw_accept(int sockfd1, struct sockaddr *sa, socklen_t *sz)
1566 SOCKET s1 = (SOCKET)_get_osfhandle(sockfd1);
1567 SOCKET s2 = accept(s1, sa, sz);
1569 /* convert into a file descriptor */
1570 if ((sockfd2 = _open_osfhandle(s2, O_RDWR|O_BINARY)) < 0) {
1573 return error("unable to make a socket file descriptor: %s",
1580 int mingw_rename(const char *pold, const char *pnew)
1584 wchar_t wpold[MAX_PATH], wpnew[MAX_PATH];
1585 if (xutftowcs_path(wpold, pold) < 0 || xutftowcs_path(wpnew, pnew) < 0)
1589 * Try native rename() first to get errno right.
1590 * It is based on MoveFile(), which cannot overwrite existing files.
1592 if (!_wrename(wpold, wpnew))
1594 if (errno != EEXIST)
1597 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1599 /* TODO: translate more errors */
1600 gle = GetLastError();
1601 if (gle == ERROR_ACCESS_DENIED &&
1602 (attrs = GetFileAttributesW(wpnew)) != INVALID_FILE_ATTRIBUTES) {
1603 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
1607 if ((attrs & FILE_ATTRIBUTE_READONLY) &&
1608 SetFileAttributesW(wpnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
1609 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1611 gle = GetLastError();
1612 /* revert file attributes on failure */
1613 SetFileAttributesW(wpnew, attrs);
1616 if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
1618 * We assume that some other process had the source or
1619 * destination file open at the wrong moment and retry.
1620 * In order to give the other process a higher chance to
1621 * complete its operation, we give up our time slice now.
1622 * If we have to retry again, we do sleep a bit.
1624 Sleep(delay[tries]);
1628 if (gle == ERROR_ACCESS_DENIED &&
1629 ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
1630 "Should I try again?", pold, pnew))
1638 * Note that this doesn't return the actual pagesize, but
1639 * the allocation granularity. If future Windows specific git code
1640 * needs the real getpagesize function, we need to find another solution.
1642 int mingw_getpagesize(void)
1646 return si.dwAllocationGranularity;
1649 struct passwd *getpwuid(int uid)
1651 static char user_name[100];
1652 static struct passwd p;
1654 DWORD len = sizeof(user_name);
1655 if (!GetUserName(user_name, &len))
1657 p.pw_name = user_name;
1658 p.pw_gecos = "unknown";
1663 static HANDLE timer_event;
1664 static HANDLE timer_thread;
1665 static int timer_interval;
1666 static int one_shot;
1667 static sig_handler_t timer_fn = SIG_DFL, sigint_fn = SIG_DFL;
1669 /* The timer works like this:
1670 * The thread, ticktack(), is a trivial routine that most of the time
1671 * only waits to receive the signal to terminate. The main thread tells
1672 * the thread to terminate by setting the timer_event to the signalled
1674 * But ticktack() interrupts the wait state after the timer's interval
1675 * length to call the signal handler.
1678 static unsigned __stdcall ticktack(void *dummy)
1680 while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
1681 mingw_raise(SIGALRM);
1688 static int start_timer_thread(void)
1690 timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1692 timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
1694 return errno = ENOMEM,
1695 error("cannot start timer thread");
1697 return errno = ENOMEM,
1698 error("cannot allocate resources for timer");
1702 static void stop_timer_thread(void)
1705 SetEvent(timer_event); /* tell thread to terminate */
1707 int rc = WaitForSingleObject(timer_thread, 1000);
1708 if (rc == WAIT_TIMEOUT)
1709 error("timer thread did not terminate timely");
1710 else if (rc != WAIT_OBJECT_0)
1711 error("waiting for timer thread failed: %lu",
1713 CloseHandle(timer_thread);
1716 CloseHandle(timer_event);
1718 timer_thread = NULL;
1721 static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2)
1723 return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec;
1726 int setitimer(int type, struct itimerval *in, struct itimerval *out)
1728 static const struct timeval zero;
1729 static int atexit_done;
1732 return errno = EINVAL,
1733 error("setitimer param 3 != NULL not implemented");
1734 if (!is_timeval_eq(&in->it_interval, &zero) &&
1735 !is_timeval_eq(&in->it_interval, &in->it_value))
1736 return errno = EINVAL,
1737 error("setitimer: it_interval must be zero or eq it_value");
1740 stop_timer_thread();
1742 if (is_timeval_eq(&in->it_value, &zero) &&
1743 is_timeval_eq(&in->it_interval, &zero))
1746 timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000;
1747 one_shot = is_timeval_eq(&in->it_interval, &zero);
1749 atexit(stop_timer_thread);
1752 return start_timer_thread();
1755 int sigaction(int sig, struct sigaction *in, struct sigaction *out)
1758 return errno = EINVAL,
1759 error("sigaction only implemented for SIGALRM");
1761 return errno = EINVAL,
1762 error("sigaction: param 3 != NULL not implemented");
1764 timer_fn = in->sa_handler;
1769 sig_handler_t mingw_signal(int sig, sig_handler_t handler)
1781 sigint_fn = handler;
1785 return signal(sig, handler);
1792 int mingw_raise(int sig)
1796 if (timer_fn == SIG_DFL) {
1797 if (isatty(STDERR_FILENO))
1798 fputs("Alarm clock\n", stderr);
1799 exit(128 + SIGALRM);
1800 } else if (timer_fn != SIG_IGN)
1805 if (sigint_fn == SIG_DFL)
1807 else if (sigint_fn != SIG_IGN)
1817 static const char *make_backslash_path(const char *path)
1819 static char buf[PATH_MAX + 1];
1822 if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
1823 die("Too long path: %.*s", 60, path);
1825 for (c = buf; *c; c++) {
1832 void mingw_open_html(const char *unixpath)
1834 const char *htmlpath = make_backslash_path(unixpath);
1835 typedef HINSTANCE (WINAPI *T)(HWND, const char *,
1836 const char *, const char *, const char *, INT);
1841 shell32 = LoadLibrary("shell32.dll");
1843 die("cannot load shell32.dll");
1844 ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA");
1846 die("cannot run browser");
1848 printf("Launching default browser to display HTML ...\n");
1849 r = (int)ShellExecute(NULL, "open", htmlpath, NULL, "\\", SW_SHOWNORMAL);
1850 FreeLibrary(shell32);
1851 /* see the MSDN documentation referring to the result codes here */
1853 die("failed to launch browser for %.*s", MAX_PATH, unixpath);
1857 int link(const char *oldpath, const char *newpath)
1859 typedef BOOL (WINAPI *T)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES);
1860 static T create_hard_link = NULL;
1861 wchar_t woldpath[MAX_PATH], wnewpath[MAX_PATH];
1862 if (xutftowcs_path(woldpath, oldpath) < 0 ||
1863 xutftowcs_path(wnewpath, newpath) < 0)
1866 if (!create_hard_link) {
1867 create_hard_link = (T) GetProcAddress(
1868 GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
1869 if (!create_hard_link)
1870 create_hard_link = (T)-1;
1872 if (create_hard_link == (T)-1) {
1876 if (!create_hard_link(wnewpath, woldpath, NULL)) {
1877 errno = err_win_to_posix(GetLastError());
1883 pid_t waitpid(pid_t pid, int *status, int options)
1885 HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
1892 if (pid > 0 && options & WNOHANG) {
1893 if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) {
1897 options &= ~WNOHANG;
1901 struct pinfo_t **ppinfo;
1902 if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
1908 GetExitCodeProcess(h, (LPDWORD)status);
1910 EnterCriticalSection(&pinfo_cs);
1914 struct pinfo_t *info = *ppinfo;
1915 if (info->pid == pid) {
1916 CloseHandle(info->proc);
1917 *ppinfo = info->next;
1921 ppinfo = &info->next;
1924 LeaveCriticalSection(&pinfo_cs);
1935 int mingw_offset_1st_component(const char *path)
1938 if (has_dos_drive_prefix(path))
1942 else if (is_dir_sep(path[0]) && is_dir_sep(path[1])) {
1944 /* skip server name */
1945 char *pos = strpbrk(path + 2, "\\/");
1947 return 0; /* Error: malformed unc path */
1951 } while (*pos && !is_dir_sep(*pos));
1953 offset = pos - path;
1956 return offset + is_dir_sep(path[offset]);
1959 int xutftowcsn(wchar_t *wcs, const char *utfs, size_t wcslen, int utflen)
1961 int upos = 0, wpos = 0;
1962 const unsigned char *utf = (const unsigned char*) utfs;
1963 if (!utf || !wcs || wcslen < 1) {
1967 /* reserve space for \0 */
1972 while (upos < utflen) {
1973 int c = utf[upos++] & 0xff;
1974 if (utflen == INT_MAX && c == 0)
1977 if (wpos >= wcslen) {
1986 } else if (c >= 0xc2 && c < 0xe0 && upos < utflen &&
1987 (utf[upos] & 0xc0) == 0x80) {
1989 c = ((c & 0x1f) << 6);
1990 c |= (utf[upos++] & 0x3f);
1992 } else if (c >= 0xe0 && c < 0xf0 && upos + 1 < utflen &&
1993 !(c == 0xe0 && utf[upos] < 0xa0) && /* over-long encoding */
1994 (utf[upos] & 0xc0) == 0x80 &&
1995 (utf[upos + 1] & 0xc0) == 0x80) {
1997 c = ((c & 0x0f) << 12);
1998 c |= ((utf[upos++] & 0x3f) << 6);
1999 c |= (utf[upos++] & 0x3f);
2001 } else if (c >= 0xf0 && c < 0xf5 && upos + 2 < utflen &&
2002 wpos + 1 < wcslen &&
2003 !(c == 0xf0 && utf[upos] < 0x90) && /* over-long encoding */
2004 !(c == 0xf4 && utf[upos] >= 0x90) && /* > \u10ffff */
2005 (utf[upos] & 0xc0) == 0x80 &&
2006 (utf[upos + 1] & 0xc0) == 0x80 &&
2007 (utf[upos + 2] & 0xc0) == 0x80) {
2008 /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
2009 c = ((c & 0x07) << 18);
2010 c |= ((utf[upos++] & 0x3f) << 12);
2011 c |= ((utf[upos++] & 0x3f) << 6);
2012 c |= (utf[upos++] & 0x3f);
2014 wcs[wpos++] = 0xd800 | (c >> 10);
2015 wcs[wpos++] = 0xdc00 | (c & 0x3ff);
2016 } else if (c >= 0xa0) {
2017 /* invalid utf-8 byte, printable unicode char: convert 1:1 */
2020 /* invalid utf-8 byte, non-printable unicode: convert to hex */
2021 static const char *hex = "0123456789abcdef";
2022 wcs[wpos++] = hex[c >> 4];
2024 wcs[wpos++] = hex[c & 0x0f];
2031 int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen)
2033 if (!wcs || !utf || utflen < 1) {
2037 utflen = WideCharToMultiByte(CP_UTF8, 0, wcs, -1, utf, utflen, NULL, NULL);
2045 * Disable MSVCRT command line wildcard expansion (__getmainargs called from
2046 * mingw startup code, see init.c in mingw runtime).
2054 extern int __wgetmainargs(int *argc, wchar_t ***argv, wchar_t ***env, int glob,
2057 static NORETURN void die_startup()
2059 fputs("fatal: not enough memory for initialization", stderr);
2063 static void *malloc_startup(size_t size)
2065 void *result = malloc(size);
2071 static char *wcstoutfdup_startup(char *buffer, const wchar_t *wcs, size_t len)
2073 len = xwcstoutf(buffer, wcs, len) + 1;
2074 return memcpy(malloc_startup(len), buffer, len);
2077 void mingw_startup()
2079 int i, maxlen, argc;
2081 wchar_t **wenv, **wargv;
2084 /* get wide char arguments and environment */
2086 if (__wgetmainargs(&argc, &wargv, &wenv, _CRT_glob, &si) < 0)
2089 /* determine size of argv and environ conversion buffer */
2090 maxlen = wcslen(_wpgmptr);
2091 for (i = 1; i < argc; i++)
2092 maxlen = max(maxlen, wcslen(wargv[i]));
2093 for (i = 0; wenv[i]; i++)
2094 maxlen = max(maxlen, wcslen(wenv[i]));
2097 * nedmalloc can't free CRT memory, allocate resizable environment
2098 * list. Note that xmalloc / xmemdupz etc. call getenv, so we cannot
2099 * use it while initializing the environment itself.
2101 environ_size = i + 1;
2102 environ_alloc = alloc_nr(environ_size * sizeof(char*));
2103 environ = malloc_startup(environ_alloc);
2105 /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */
2106 maxlen = 3 * maxlen + 1;
2107 buffer = malloc_startup(maxlen);
2109 /* convert command line arguments and environment to UTF-8 */
2110 __argv[0] = wcstoutfdup_startup(buffer, _wpgmptr, maxlen);
2111 for (i = 1; i < argc; i++)
2112 __argv[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen);
2113 for (i = 0; wenv[i]; i++)
2114 environ[i] = wcstoutfdup_startup(buffer, wenv[i], maxlen);
2118 /* sort environment for O(log n) getenv / putenv */
2119 qsort(environ, i, sizeof(char*), compareenv);
2121 /* fix Windows specific environment settings */
2123 /* on Windows it is TMP and TEMP */
2124 if (!mingw_getenv("TMPDIR")) {
2125 const char *tmp = mingw_getenv("TMP");
2127 tmp = mingw_getenv("TEMP");
2129 setenv("TMPDIR", tmp, 1);
2132 /* simulate TERM to enable auto-color (see color.c) */
2133 if (!getenv("TERM"))
2134 setenv("TERM", "cygwin", 1);
2136 /* initialize critical section for waitpid pinfo_t list */
2137 InitializeCriticalSection(&pinfo_cs);
2139 /* set up default file mode and file modes for stdin/out/err */
2141 _setmode(_fileno(stdin), _O_BINARY);
2142 _setmode(_fileno(stdout), _O_BINARY);
2143 _setmode(_fileno(stderr), _O_BINARY);
2145 /* initialize Unicode console */
2149 int uname(struct utsname *buf)
2151 unsigned v = (unsigned)GetVersion();
2152 memset(buf, 0, sizeof(*buf));
2153 xsnprintf(buf->sysname, sizeof(buf->sysname), "Windows");
2154 xsnprintf(buf->release, sizeof(buf->release),
2155 "%u.%u", v & 0xff, (v >> 8) & 0xff);
2156 /* assuming NT variants only.. */
2157 xsnprintf(buf->version, sizeof(buf->version),
2158 "%u", (v >> 16) & 0x7fff);