1 #include "../git-compat-util.h"
6 #include "../run-command.h"
8 #include "win32/lazyload.h"
12 #define HCAST(type, handle) ((type)(intptr_t)handle)
14 static const int delay[] = { 0, 1, 10, 20, 40 };
16 void open_in_gdb(void)
18 static struct child_process cp = CHILD_PROCESS_INIT;
21 argv_array_pushl(&cp.args, "mintty", "gdb", NULL);
22 argv_array_pushf(&cp.args, "--pid=%d", getpid());
24 if (start_command(&cp) < 0)
25 die_errno("Could not start gdb");
29 int err_win_to_posix(DWORD winerr)
33 case ERROR_ACCESS_DENIED: error = EACCES; break;
34 case ERROR_ACCOUNT_DISABLED: error = EACCES; break;
35 case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break;
36 case ERROR_ALREADY_ASSIGNED: error = EBUSY; break;
37 case ERROR_ALREADY_EXISTS: error = EEXIST; break;
38 case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break;
39 case ERROR_BAD_COMMAND: error = EIO; break;
40 case ERROR_BAD_DEVICE: error = ENODEV; break;
41 case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break;
42 case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break;
43 case ERROR_BAD_FORMAT: error = ENOEXEC; break;
44 case ERROR_BAD_LENGTH: error = EINVAL; break;
45 case ERROR_BAD_PATHNAME: error = ENOENT; break;
46 case ERROR_BAD_PIPE: error = EPIPE; break;
47 case ERROR_BAD_UNIT: error = ENODEV; break;
48 case ERROR_BAD_USERNAME: error = EINVAL; break;
49 case ERROR_BROKEN_PIPE: error = EPIPE; break;
50 case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break;
51 case ERROR_BUSY: error = EBUSY; break;
52 case ERROR_BUSY_DRIVE: error = EBUSY; break;
53 case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break;
54 case ERROR_CANNOT_MAKE: error = EACCES; break;
55 case ERROR_CANTOPEN: error = EIO; break;
56 case ERROR_CANTREAD: error = EIO; break;
57 case ERROR_CANTWRITE: error = EIO; break;
58 case ERROR_CRC: error = EIO; break;
59 case ERROR_CURRENT_DIRECTORY: error = EACCES; break;
60 case ERROR_DEVICE_IN_USE: error = EBUSY; break;
61 case ERROR_DEV_NOT_EXIST: error = ENODEV; break;
62 case ERROR_DIRECTORY: error = EINVAL; break;
63 case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break;
64 case ERROR_DISK_CHANGE: error = EIO; break;
65 case ERROR_DISK_FULL: error = ENOSPC; break;
66 case ERROR_DRIVE_LOCKED: error = EBUSY; break;
67 case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break;
68 case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break;
69 case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break;
70 case ERROR_FILE_EXISTS: error = EEXIST; break;
71 case ERROR_FILE_INVALID: error = ENODEV; break;
72 case ERROR_FILE_NOT_FOUND: error = ENOENT; break;
73 case ERROR_GEN_FAILURE: error = EIO; break;
74 case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break;
75 case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break;
76 case ERROR_INVALID_ACCESS: error = EACCES; break;
77 case ERROR_INVALID_ADDRESS: error = EFAULT; break;
78 case ERROR_INVALID_BLOCK: error = EFAULT; break;
79 case ERROR_INVALID_DATA: error = EINVAL; break;
80 case ERROR_INVALID_DRIVE: error = ENODEV; break;
81 case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break;
82 case ERROR_INVALID_FLAGS: error = EINVAL; break;
83 case ERROR_INVALID_FUNCTION: error = ENOSYS; break;
84 case ERROR_INVALID_HANDLE: error = EBADF; break;
85 case ERROR_INVALID_LOGON_HOURS: error = EACCES; break;
86 case ERROR_INVALID_NAME: error = EINVAL; break;
87 case ERROR_INVALID_OWNER: error = EINVAL; break;
88 case ERROR_INVALID_PARAMETER: error = EINVAL; break;
89 case ERROR_INVALID_PASSWORD: error = EPERM; break;
90 case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break;
91 case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break;
92 case ERROR_INVALID_TARGET_HANDLE: error = EIO; break;
93 case ERROR_INVALID_WORKSTATION: error = EACCES; break;
94 case ERROR_IO_DEVICE: error = EIO; break;
95 case ERROR_IO_INCOMPLETE: error = EINTR; break;
96 case ERROR_LOCKED: error = EBUSY; break;
97 case ERROR_LOCK_VIOLATION: error = EACCES; break;
98 case ERROR_LOGON_FAILURE: error = EACCES; break;
99 case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break;
100 case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break;
101 case ERROR_MORE_DATA: error = EPIPE; break;
102 case ERROR_NEGATIVE_SEEK: error = ESPIPE; break;
103 case ERROR_NOACCESS: error = EFAULT; break;
104 case ERROR_NONE_MAPPED: error = EINVAL; break;
105 case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break;
106 case ERROR_NOT_READY: error = EAGAIN; break;
107 case ERROR_NOT_SAME_DEVICE: error = EXDEV; break;
108 case ERROR_NO_DATA: error = EPIPE; break;
109 case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break;
110 case ERROR_NO_PROC_SLOTS: error = EAGAIN; break;
111 case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break;
112 case ERROR_OPEN_FAILED: error = EIO; break;
113 case ERROR_OPEN_FILES: error = EBUSY; break;
114 case ERROR_OPERATION_ABORTED: error = EINTR; break;
115 case ERROR_OUTOFMEMORY: error = ENOMEM; break;
116 case ERROR_PASSWORD_EXPIRED: error = EACCES; break;
117 case ERROR_PATH_BUSY: error = EBUSY; break;
118 case ERROR_PATH_NOT_FOUND: error = ENOENT; break;
119 case ERROR_PIPE_BUSY: error = EBUSY; break;
120 case ERROR_PIPE_CONNECTED: error = EPIPE; break;
121 case ERROR_PIPE_LISTENING: error = EPIPE; break;
122 case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break;
123 case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break;
124 case ERROR_READ_FAULT: error = EIO; break;
125 case ERROR_SEEK: error = EIO; break;
126 case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break;
127 case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break;
128 case ERROR_SHARING_VIOLATION: error = EACCES; break;
129 case ERROR_STACK_OVERFLOW: error = ENOMEM; break;
130 case ERROR_SWAPERROR: error = ENOENT; break;
131 case ERROR_TOO_MANY_MODULES: error = EMFILE; break;
132 case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break;
133 case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break;
134 case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break;
135 case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break;
136 case ERROR_WRITE_FAULT: error = EIO; break;
137 case ERROR_WRITE_PROTECT: error = EROFS; break;
142 static inline int is_file_in_use_error(DWORD errcode)
145 case ERROR_SHARING_VIOLATION:
146 case ERROR_ACCESS_DENIED:
153 static int read_yes_no_answer(void)
157 if (fgets(answer, sizeof(answer), stdin)) {
158 size_t answer_len = strlen(answer);
159 int got_full_line = 0, c;
161 /* remove the newline */
162 if (answer_len >= 2 && answer[answer_len-2] == '\r') {
163 answer[answer_len-2] = '\0';
165 } else if (answer_len >= 1 && answer[answer_len-1] == '\n') {
166 answer[answer_len-1] = '\0';
169 /* flush the buffer in case we did not get the full line */
171 while ((c = getchar()) != EOF && c != '\n')
174 /* we could not read, return the
175 * default answer which is no */
178 if (tolower(answer[0]) == 'y' && !answer[1])
180 if (!strncasecmp(answer, "yes", sizeof(answer)))
182 if (tolower(answer[0]) == 'n' && !answer[1])
184 if (!strncasecmp(answer, "no", sizeof(answer)))
187 /* did not find an answer we understand */
191 static int ask_yes_no_if_possible(const char *format, ...)
194 const char *retry_hook[] = { NULL, NULL, NULL };
197 va_start(args, format);
198 vsnprintf(question, sizeof(question), format, args);
201 if ((retry_hook[0] = mingw_getenv("GIT_ASK_YESNO"))) {
202 retry_hook[1] = question;
203 return !run_command_v_opt(retry_hook, 0);
206 if (!isatty(_fileno(stdin)) || !isatty(_fileno(stderr)))
211 fprintf(stderr, "%s (y/n) ", question);
213 if ((answer = read_yes_no_answer()) >= 0)
216 fprintf(stderr, "Sorry, I did not understand your answer. "
217 "Please type 'y' or 'n'\n");
222 enum hide_dotfiles_type {
223 HIDE_DOTFILES_FALSE = 0,
225 HIDE_DOTFILES_DOTGITONLY
228 static enum hide_dotfiles_type hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
229 static char *unset_environment_variables;
231 int mingw_core_config(const char *var, const char *value, void *cb)
233 if (!strcmp(var, "core.hidedotfiles")) {
234 if (value && !strcasecmp(value, "dotgitonly"))
235 hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
237 hide_dotfiles = git_config_bool(var, value);
241 if (!strcmp(var, "core.unsetenvvars")) {
242 free(unset_environment_variables);
243 unset_environment_variables = xstrdup(value);
250 /* Normalizes NT paths as returned by some low-level APIs. */
251 static wchar_t *normalize_ntpath(wchar_t *wbuf)
254 /* fix absolute path prefixes */
255 if (wbuf[0] == '\\') {
256 /* strip NT namespace prefixes */
257 if (!wcsncmp(wbuf, L"\\??\\", 4) ||
258 !wcsncmp(wbuf, L"\\\\?\\", 4))
260 else if (!wcsnicmp(wbuf, L"\\DosDevices\\", 12))
262 /* replace remaining '...UNC\' with '\\' */
263 if (!wcsnicmp(wbuf, L"UNC\\", 4)) {
268 /* convert backslashes to slashes */
269 for (i = 0; wbuf[i]; i++)
275 int mingw_unlink(const char *pathname)
278 wchar_t wpathname[MAX_PATH];
279 if (xutftowcs_path(wpathname, pathname) < 0)
282 /* read-only files cannot be removed */
283 _wchmod(wpathname, 0666);
284 while ((ret = _wunlink(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
285 if (!is_file_in_use_error(GetLastError()))
288 * We assume that some other process had the source or
289 * destination file open at the wrong moment and retry.
290 * In order to give the other process a higher chance to
291 * complete its operation, we give up our time slice now.
292 * If we have to retry again, we do sleep a bit.
297 while (ret == -1 && is_file_in_use_error(GetLastError()) &&
298 ask_yes_no_if_possible("Unlink of file '%s' failed. "
299 "Should I try again?", pathname))
300 ret = _wunlink(wpathname);
304 static int is_dir_empty(const wchar_t *wpath)
306 WIN32_FIND_DATAW findbuf;
308 wchar_t wbuf[MAX_PATH + 2];
310 wcscat(wbuf, L"\\*");
311 handle = FindFirstFileW(wbuf, &findbuf);
312 if (handle == INVALID_HANDLE_VALUE)
313 return GetLastError() == ERROR_NO_MORE_FILES;
315 while (!wcscmp(findbuf.cFileName, L".") ||
316 !wcscmp(findbuf.cFileName, L".."))
317 if (!FindNextFileW(handle, &findbuf)) {
318 DWORD err = GetLastError();
320 return err == ERROR_NO_MORE_FILES;
326 int mingw_rmdir(const char *pathname)
329 wchar_t wpathname[MAX_PATH];
330 if (xutftowcs_path(wpathname, pathname) < 0)
333 while ((ret = _wrmdir(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
334 if (!is_file_in_use_error(GetLastError()))
335 errno = err_win_to_posix(GetLastError());
338 if (!is_dir_empty(wpathname)) {
343 * We assume that some other process had the source or
344 * destination file open at the wrong moment and retry.
345 * In order to give the other process a higher chance to
346 * complete its operation, we give up our time slice now.
347 * If we have to retry again, we do sleep a bit.
352 while (ret == -1 && errno == EACCES && is_file_in_use_error(GetLastError()) &&
353 ask_yes_no_if_possible("Deletion of directory '%s' failed. "
354 "Should I try again?", pathname))
355 ret = _wrmdir(wpathname);
359 static inline int needs_hiding(const char *path)
361 const char *basename;
363 if (hide_dotfiles == HIDE_DOTFILES_FALSE)
366 /* We cannot use basename(), as it would remove trailing slashes */
367 win32_skip_dos_drive_prefix((char **)&path);
371 for (basename = path; *path; path++)
372 if (is_dir_sep(*path)) {
375 } while (is_dir_sep(*path));
376 /* ignore trailing slashes */
383 if (hide_dotfiles == HIDE_DOTFILES_TRUE)
384 return *basename == '.';
386 assert(hide_dotfiles == HIDE_DOTFILES_DOTGITONLY);
387 return !strncasecmp(".git", basename, 4) &&
388 (!basename[4] || is_dir_sep(basename[4]));
391 static int set_hidden_flag(const wchar_t *path, int set)
393 DWORD original = GetFileAttributesW(path), modified;
395 modified = original | FILE_ATTRIBUTE_HIDDEN;
397 modified = original & ~FILE_ATTRIBUTE_HIDDEN;
398 if (original == modified || SetFileAttributesW(path, modified))
400 errno = err_win_to_posix(GetLastError());
404 int mingw_mkdir(const char *path, int mode)
407 wchar_t wpath[MAX_PATH];
409 if (!is_valid_win32_path(path)) {
414 if (xutftowcs_path(wpath, path) < 0)
416 ret = _wmkdir(wpath);
417 if (!ret && needs_hiding(path))
418 return set_hidden_flag(wpath, 1);
423 * Calling CreateFile() using FILE_APPEND_DATA and without FILE_WRITE_DATA
424 * is documented in [1] as opening a writable file handle in append mode.
425 * (It is believed that) this is atomic since it is maintained by the
426 * kernel unlike the O_APPEND flag which is racily maintained by the CRT.
428 * [1] https://docs.microsoft.com/en-us/windows/desktop/fileio/file-access-rights-constants
430 * This trick does not appear to work for named pipes. Instead it creates
431 * a named pipe client handle that cannot be written to. Callers should
432 * just use the regular _wopen() for them. (And since client handle gets
433 * bound to a unique server handle, it isn't really an issue.)
435 static int mingw_open_append(wchar_t const *wfilename, int oflags, ...)
439 DWORD create = (oflags & O_CREAT) ? OPEN_ALWAYS : OPEN_EXISTING;
441 /* only these flags are supported */
442 if ((oflags & ~O_CREAT) != (O_WRONLY | O_APPEND))
443 return errno = ENOSYS, -1;
446 * FILE_SHARE_WRITE is required to permit child processes
447 * to append to the file.
449 handle = CreateFileW(wfilename, FILE_APPEND_DATA,
450 FILE_SHARE_WRITE | FILE_SHARE_READ,
451 NULL, create, FILE_ATTRIBUTE_NORMAL, NULL);
452 if (handle == INVALID_HANDLE_VALUE)
453 return errno = err_win_to_posix(GetLastError()), -1;
456 * No O_APPEND here, because the CRT uses it only to reset the
457 * file pointer to EOF before each write(); but that is not
458 * necessary (and may lead to races) for a file created with
461 fd = _open_osfhandle((intptr_t)handle, O_BINARY);
468 * Does the pathname map to the local named pipe filesystem?
469 * That is, does it have a "//./pipe/" prefix?
471 static int is_local_named_pipe_path(const char *filename)
473 return (is_dir_sep(filename[0]) &&
474 is_dir_sep(filename[1]) &&
475 filename[2] == '.' &&
476 is_dir_sep(filename[3]) &&
477 !strncasecmp(filename+4, "pipe", 4) &&
478 is_dir_sep(filename[8]) &&
482 int mingw_open (const char *filename, int oflags, ...)
484 typedef int (*open_fn_t)(wchar_t const *wfilename, int oflags, ...);
487 int fd, create = (oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL);
488 wchar_t wfilename[MAX_PATH];
491 va_start(args, oflags);
492 mode = va_arg(args, int);
495 if (!is_valid_win32_path(filename)) {
496 errno = create ? EINVAL : ENOENT;
500 if (filename && !strcmp(filename, "/dev/null"))
503 if ((oflags & O_APPEND) && !is_local_named_pipe_path(filename))
504 open_fn = mingw_open_append;
508 if (xutftowcs_path(wfilename, filename) < 0)
510 fd = open_fn(wfilename, oflags, mode);
512 if (fd < 0 && (oflags & O_ACCMODE) != O_RDONLY && errno == EACCES) {
513 DWORD attrs = GetFileAttributesW(wfilename);
514 if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
517 if ((oflags & O_CREAT) && needs_hiding(filename)) {
519 * Internally, _wopen() uses the CreateFile() API which errors
520 * out with an ERROR_ACCESS_DENIED if CREATE_ALWAYS was
521 * specified and an already existing file's attributes do not
522 * match *exactly*. As there is no mode or flag we can set that
523 * would correspond to FILE_ATTRIBUTE_HIDDEN, let's just try
524 * again *without* the O_CREAT flag (that corresponds to the
525 * CREATE_ALWAYS flag of CreateFile()).
527 if (fd < 0 && errno == EACCES)
528 fd = open_fn(wfilename, oflags & ~O_CREAT, mode);
529 if (fd >= 0 && set_hidden_flag(wfilename, 1))
530 warning("could not mark '%s' as hidden.", filename);
535 static BOOL WINAPI ctrl_ignore(DWORD type)
541 int mingw_fgetc(FILE *stream)
544 if (!isatty(_fileno(stream)))
545 return fgetc(stream);
547 SetConsoleCtrlHandler(ctrl_ignore, TRUE);
550 if (ch != EOF || GetLastError() != ERROR_OPERATION_ABORTED)
553 /* Ctrl+C was pressed, simulate SIGINT and retry */
556 SetConsoleCtrlHandler(ctrl_ignore, FALSE);
561 FILE *mingw_fopen (const char *filename, const char *otype)
563 int hide = needs_hiding(filename);
565 wchar_t wfilename[MAX_PATH], wotype[4];
566 if (!is_valid_win32_path(filename)) {
567 int create = otype && strchr(otype, 'w');
568 errno = create ? EINVAL : ENOENT;
571 if (filename && !strcmp(filename, "/dev/null"))
573 if (xutftowcs_path(wfilename, filename) < 0 ||
574 xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
576 if (hide && !access(filename, F_OK) && set_hidden_flag(wfilename, 0)) {
577 error("could not unhide %s", filename);
580 file = _wfopen(wfilename, wotype);
581 if (!file && GetLastError() == ERROR_INVALID_NAME)
583 if (file && hide && set_hidden_flag(wfilename, 1))
584 warning("could not mark '%s' as hidden.", filename);
588 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream)
590 int hide = needs_hiding(filename);
592 wchar_t wfilename[MAX_PATH], wotype[4];
593 if (!is_valid_win32_path(filename)) {
594 int create = otype && strchr(otype, 'w');
595 errno = create ? EINVAL : ENOENT;
598 if (filename && !strcmp(filename, "/dev/null"))
600 if (xutftowcs_path(wfilename, filename) < 0 ||
601 xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
603 if (hide && !access(filename, F_OK) && set_hidden_flag(wfilename, 0)) {
604 error("could not unhide %s", filename);
607 file = _wfreopen(wfilename, wotype, stream);
608 if (file && hide && set_hidden_flag(wfilename, 1))
609 warning("could not mark '%s' as hidden.", filename);
614 int mingw_fflush(FILE *stream)
616 int ret = fflush(stream);
619 * write() is used behind the scenes of stdio output functions.
620 * Since git code does not check for errors after each stdio write
621 * operation, it can happen that write() is called by a later
622 * stdio function even if an earlier write() call failed. In the
623 * case of a pipe whose readable end was closed, only the first
624 * call to write() reports EPIPE on Windows. Subsequent write()
625 * calls report EINVAL. It is impossible to notice whether this
626 * fflush invocation triggered such a case, therefore, we have to
627 * catch all EINVAL errors whole-sale.
629 if (ret && errno == EINVAL)
636 ssize_t mingw_write(int fd, const void *buf, size_t len)
638 ssize_t result = write(fd, buf, len);
640 if (result < 0 && errno == EINVAL && buf) {
641 /* check if fd is a pipe */
642 HANDLE h = (HANDLE) _get_osfhandle(fd);
643 if (GetFileType(h) == FILE_TYPE_PIPE)
652 int mingw_access(const char *filename, int mode)
654 wchar_t wfilename[MAX_PATH];
655 if (xutftowcs_path(wfilename, filename) < 0)
657 /* X_OK is not supported by the MSVCRT version */
658 return _waccess(wfilename, mode & ~X_OK);
661 int mingw_chdir(const char *dirname)
663 wchar_t wdirname[MAX_PATH];
664 if (xutftowcs_path(wdirname, dirname) < 0)
666 return _wchdir(wdirname);
669 int mingw_chmod(const char *filename, int mode)
671 wchar_t wfilename[MAX_PATH];
672 if (xutftowcs_path(wfilename, filename) < 0)
674 return _wchmod(wfilename, mode);
678 * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
679 * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
681 static inline long long filetime_to_hnsec(const FILETIME *ft)
683 long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
684 /* Windows to Unix Epoch conversion */
685 return winTime - 116444736000000000LL;
688 static inline void filetime_to_timespec(const FILETIME *ft, struct timespec *ts)
690 long long hnsec = filetime_to_hnsec(ft);
691 ts->tv_sec = (time_t)(hnsec / 10000000);
692 ts->tv_nsec = (hnsec % 10000000) * 100;
696 * Verifies that safe_create_leading_directories() would succeed.
698 static int has_valid_directory_prefix(wchar_t *wfilename)
700 int n = wcslen(wfilename);
703 wchar_t c = wfilename[--n];
709 wfilename[n] = L'\0';
710 attributes = GetFileAttributesW(wfilename);
712 if (attributes == FILE_ATTRIBUTE_DIRECTORY ||
713 attributes == FILE_ATTRIBUTE_DEVICE)
715 if (attributes == INVALID_FILE_ATTRIBUTES)
716 switch (GetLastError()) {
717 case ERROR_PATH_NOT_FOUND:
719 case ERROR_FILE_NOT_FOUND:
720 /* This implies parent directory exists. */
728 /* We keep the do_lstat code in a separate function to avoid recursion.
729 * When a path ends with a slash, the stat will fail with ENOENT. In
730 * this case, we strip the trailing slashes and stat again.
732 * If follow is true then act like stat() and report on the link
733 * target. Otherwise report on the link itself.
735 static int do_lstat(int follow, const char *file_name, struct stat *buf)
737 WIN32_FILE_ATTRIBUTE_DATA fdata;
738 wchar_t wfilename[MAX_PATH];
739 if (xutftowcs_path(wfilename, file_name) < 0)
742 if (GetFileAttributesExW(wfilename, GetFileExInfoStandard, &fdata)) {
747 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
748 buf->st_size = fdata.nFileSizeLow |
749 (((off_t)fdata.nFileSizeHigh)<<32);
750 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
751 filetime_to_timespec(&(fdata.ftLastAccessTime), &(buf->st_atim));
752 filetime_to_timespec(&(fdata.ftLastWriteTime), &(buf->st_mtim));
753 filetime_to_timespec(&(fdata.ftCreationTime), &(buf->st_ctim));
754 if (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
755 WIN32_FIND_DATAW findbuf;
756 HANDLE handle = FindFirstFileW(wfilename, &findbuf);
757 if (handle != INVALID_HANDLE_VALUE) {
758 if ((findbuf.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
759 (findbuf.dwReserved0 == IO_REPARSE_TAG_SYMLINK)) {
761 char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
762 buf->st_size = readlink(file_name, buffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE);
764 buf->st_mode = S_IFLNK;
766 buf->st_mode |= S_IREAD;
767 if (!(findbuf.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
768 buf->st_mode |= S_IWRITE;
775 switch (GetLastError()) {
776 case ERROR_ACCESS_DENIED:
777 case ERROR_SHARING_VIOLATION:
778 case ERROR_LOCK_VIOLATION:
779 case ERROR_SHARING_BUFFER_EXCEEDED:
782 case ERROR_BUFFER_OVERFLOW:
783 errno = ENAMETOOLONG;
785 case ERROR_NOT_ENOUGH_MEMORY:
788 case ERROR_PATH_NOT_FOUND:
789 if (!has_valid_directory_prefix(wfilename)) {
801 /* We provide our own lstat/fstat functions, since the provided
802 * lstat/fstat functions are so slow. These stat functions are
803 * tailored for Git's usage (read: fast), and are not meant to be
804 * complete. Note that Git stat()s are redirected to mingw_lstat()
805 * too, since Windows doesn't really handle symlinks that well.
807 static int do_stat_internal(int follow, const char *file_name, struct stat *buf)
810 char alt_name[PATH_MAX];
812 if (!do_lstat(follow, file_name, buf))
815 /* if file_name ended in a '/', Windows returned ENOENT;
816 * try again without trailing slashes
821 namelen = strlen(file_name);
822 if (namelen && file_name[namelen-1] != '/')
824 while (namelen && file_name[namelen-1] == '/')
826 if (!namelen || namelen >= PATH_MAX)
829 memcpy(alt_name, file_name, namelen);
830 alt_name[namelen] = 0;
831 return do_lstat(follow, alt_name, buf);
834 static int get_file_info_by_handle(HANDLE hnd, struct stat *buf)
836 BY_HANDLE_FILE_INFORMATION fdata;
838 if (!GetFileInformationByHandle(hnd, &fdata)) {
839 errno = err_win_to_posix(GetLastError());
847 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
848 buf->st_size = fdata.nFileSizeLow |
849 (((off_t)fdata.nFileSizeHigh)<<32);
850 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
851 filetime_to_timespec(&(fdata.ftLastAccessTime), &(buf->st_atim));
852 filetime_to_timespec(&(fdata.ftLastWriteTime), &(buf->st_mtim));
853 filetime_to_timespec(&(fdata.ftCreationTime), &(buf->st_ctim));
857 int mingw_lstat(const char *file_name, struct stat *buf)
859 return do_stat_internal(0, file_name, buf);
861 int mingw_stat(const char *file_name, struct stat *buf)
863 return do_stat_internal(1, file_name, buf);
866 int mingw_fstat(int fd, struct stat *buf)
868 HANDLE fh = (HANDLE)_get_osfhandle(fd);
869 DWORD avail, type = GetFileType(fh) & ~FILE_TYPE_REMOTE;
873 return get_file_info_by_handle(fh, buf);
877 /* initialize stat fields */
878 memset(buf, 0, sizeof(*buf));
881 if (type == FILE_TYPE_CHAR) {
882 buf->st_mode = _S_IFCHR;
884 buf->st_mode = _S_IFIFO;
885 if (PeekNamedPipe(fh, NULL, 0, NULL, &avail, NULL))
886 buf->st_size = avail;
896 static inline void time_t_to_filetime(time_t t, FILETIME *ft)
898 long long winTime = t * 10000000LL + 116444736000000000LL;
899 ft->dwLowDateTime = winTime;
900 ft->dwHighDateTime = winTime >> 32;
903 int mingw_utime (const char *file_name, const struct utimbuf *times)
908 wchar_t wfilename[MAX_PATH];
909 if (xutftowcs_path(wfilename, file_name) < 0)
912 /* must have write permission */
913 attrs = GetFileAttributesW(wfilename);
914 if (attrs != INVALID_FILE_ATTRIBUTES &&
915 (attrs & FILE_ATTRIBUTE_READONLY)) {
916 /* ignore errors here; open() will report them */
917 SetFileAttributesW(wfilename, attrs & ~FILE_ATTRIBUTE_READONLY);
920 if ((fh = _wopen(wfilename, O_RDWR | O_BINARY)) < 0) {
926 time_t_to_filetime(times->modtime, &mft);
927 time_t_to_filetime(times->actime, &aft);
929 GetSystemTimeAsFileTime(&mft);
932 if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
940 if (attrs != INVALID_FILE_ATTRIBUTES &&
941 (attrs & FILE_ATTRIBUTE_READONLY)) {
942 /* ignore errors again */
943 SetFileAttributesW(wfilename, attrs);
949 size_t mingw_strftime(char *s, size_t max,
950 const char *format, const struct tm *tm)
952 size_t ret = strftime(s, max, format, tm);
954 if (!ret && errno == EINVAL)
955 die("invalid strftime format: '%s'", format);
959 unsigned int sleep (unsigned int seconds)
965 char *mingw_mktemp(char *template)
967 wchar_t wtemplate[MAX_PATH];
968 if (xutftowcs_path(wtemplate, template) < 0)
970 if (!_wmktemp(wtemplate))
972 if (xwcstoutf(template, wtemplate, strlen(template) + 1) < 0)
977 int mkstemp(char *template)
979 char *filename = mktemp(template);
980 if (filename == NULL)
982 return open(filename, O_RDWR | O_CREAT, 0600);
985 int gettimeofday(struct timeval *tv, void *tz)
990 GetSystemTimeAsFileTime(&ft);
991 hnsec = filetime_to_hnsec(&ft);
992 tv->tv_sec = hnsec / 10000000;
993 tv->tv_usec = (hnsec % 10000000) / 10;
997 int pipe(int filedes[2])
1001 /* this creates non-inheritable handles */
1002 if (!CreatePipe(&h[0], &h[1], NULL, 8192)) {
1003 errno = err_win_to_posix(GetLastError());
1006 filedes[0] = _open_osfhandle(HCAST(int, h[0]), O_NOINHERIT);
1007 if (filedes[0] < 0) {
1012 filedes[1] = _open_osfhandle(HCAST(int, h[1]), O_NOINHERIT);
1013 if (filedes[1] < 0) {
1021 struct tm *gmtime_r(const time_t *timep, struct tm *result)
1023 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
1024 memcpy(result, gmtime(timep), sizeof(struct tm));
1028 struct tm *localtime_r(const time_t *timep, struct tm *result)
1030 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
1031 memcpy(result, localtime(timep), sizeof(struct tm));
1035 char *mingw_getcwd(char *pointer, int len)
1037 wchar_t cwd[MAX_PATH], wpointer[MAX_PATH];
1038 DWORD ret = GetCurrentDirectoryW(ARRAY_SIZE(cwd), cwd);
1040 if (!ret || ret >= ARRAY_SIZE(cwd)) {
1041 errno = ret ? ENAMETOOLONG : err_win_to_posix(GetLastError());
1044 ret = GetLongPathNameW(cwd, wpointer, ARRAY_SIZE(wpointer));
1045 if (!ret && GetLastError() == ERROR_ACCESS_DENIED) {
1046 HANDLE hnd = CreateFileW(cwd, 0,
1047 FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
1048 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
1049 if (hnd == INVALID_HANDLE_VALUE)
1051 ret = GetFinalPathNameByHandleW(hnd, wpointer, ARRAY_SIZE(wpointer), 0);
1053 if (!ret || ret >= ARRAY_SIZE(wpointer))
1055 if (xwcstoutf(pointer, normalize_ntpath(wpointer), len) < 0)
1059 if (!ret || ret >= ARRAY_SIZE(wpointer))
1061 if (xwcstoutf(pointer, wpointer, len) < 0)
1063 convert_slashes(pointer);
1068 * See "Parsing C++ Command-Line Arguments" at Microsoft's Docs:
1069 * https://docs.microsoft.com/en-us/cpp/cpp/parsing-cpp-command-line-arguments
1071 static const char *quote_arg_msvc(const char *arg)
1073 /* count chars to quote */
1075 int force_quotes = 0;
1077 const char *p = arg;
1078 if (!*p) force_quotes = 1;
1080 if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'')
1084 else if (*p == '\\') {
1086 while (*p == '\\') {
1091 if (*p == '"' || !*p)
1098 if (!force_quotes && n == 0)
1101 /* insert \ where necessary */
1102 d = q = xmalloc(st_add3(len, n, 3));
1107 else if (*arg == '\\') {
1109 while (*arg == '\\') {
1113 if (*arg == '"' || !*arg) {
1116 /* don't escape the surrounding end quote */
1131 static const char *quote_arg_msys2(const char *arg)
1133 struct strbuf buf = STRBUF_INIT;
1134 const char *p2 = arg, *p;
1136 for (p = arg; *p; p++) {
1137 int ws = isspace(*p);
1138 if (!ws && *p != '\\' && *p != '"' && *p != '{' && *p != '\'' &&
1139 *p != '?' && *p != '*' && *p != '~')
1142 strbuf_addch(&buf, '"');
1144 strbuf_add(&buf, p2, p - p2);
1145 if (*p == '\\' || *p == '"')
1146 strbuf_addch(&buf, '\\');
1151 strbuf_addch(&buf, '"');
1155 strbuf_add(&buf, p2, p - p2);
1157 strbuf_addch(&buf, '"');
1158 return strbuf_detach(&buf, 0);
1161 static const char *parse_interpreter(const char *cmd)
1163 static char buf[100];
1167 /* don't even try a .exe */
1169 if (n >= 4 && !strcasecmp(cmd+n-4, ".exe"))
1172 fd = open(cmd, O_RDONLY);
1175 n = read(fd, buf, sizeof(buf)-1);
1177 if (n < 4) /* at least '#!/x' and not error */
1180 if (buf[0] != '#' || buf[1] != '!')
1183 p = buf + strcspn(buf, "\r\n");
1188 if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\')))
1191 if ((opt = strchr(p+1, ' ')))
1197 * exe_only means that we only want to detect .exe files, but not scripts
1198 * (which do not have an extension)
1200 static char *lookup_prog(const char *dir, int dirlen, const char *cmd,
1201 int isexe, int exe_only)
1203 char path[MAX_PATH];
1204 wchar_t wpath[MAX_PATH];
1205 snprintf(path, sizeof(path), "%.*s\\%s.exe", dirlen, dir, cmd);
1207 if (xutftowcs_path(wpath, path) < 0)
1210 if (!isexe && _waccess(wpath, F_OK) == 0)
1211 return xstrdup(path);
1212 wpath[wcslen(wpath)-4] = '\0';
1213 if ((!exe_only || isexe) && _waccess(wpath, F_OK) == 0) {
1214 if (!(GetFileAttributesW(wpath) & FILE_ATTRIBUTE_DIRECTORY)) {
1215 path[strlen(path)-4] = '\0';
1216 return xstrdup(path);
1223 * Determines the absolute path of cmd using the split path in path.
1224 * If cmd contains a slash or backslash, no lookup is performed.
1226 static char *path_lookup(const char *cmd, int exe_only)
1230 int len = strlen(cmd);
1231 int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe");
1233 if (strchr(cmd, '/') || strchr(cmd, '\\'))
1234 return xstrdup(cmd);
1236 path = mingw_getenv("PATH");
1241 const char *sep = strchrnul(path, ';');
1242 int dirlen = sep - path;
1244 prog = lookup_prog(path, dirlen, cmd, isexe, exe_only);
1253 static const wchar_t *wcschrnul(const wchar_t *s, wchar_t c)
1255 while (*s && *s != c)
1260 /* Compare only keys */
1261 static int wenvcmp(const void *a, const void *b)
1263 wchar_t *p = *(wchar_t **)a, *q = *(wchar_t **)b;
1264 size_t p_len, q_len;
1267 p_len = wcschrnul(p, L'=') - p;
1268 q_len = wcschrnul(q, L'=') - q;
1270 /* If the length differs, include the shorter key's NUL */
1273 else if (p_len > q_len)
1276 return _wcsnicmp(p, q, p_len);
1280 * Build an environment block combining the inherited environment
1281 * merged with the given list of settings.
1283 * Values of the form "KEY=VALUE" in deltaenv override inherited values.
1284 * Values of the form "KEY" in deltaenv delete inherited values.
1286 * Multiple entries in deltaenv for the same key are explicitly allowed.
1288 * We return a contiguous block of UNICODE strings with a final trailing
1291 static wchar_t *make_environment_block(char **deltaenv)
1293 wchar_t *wenv = GetEnvironmentStringsW(), *wdeltaenv, *result, *p;
1294 size_t wlen, s, delta_size, size;
1296 wchar_t **array = NULL;
1297 size_t alloc = 0, nr = 0, i;
1299 size = 1; /* for extra NUL at the end */
1301 /* If there is no deltaenv to apply, simply return a copy. */
1302 if (!deltaenv || !*deltaenv) {
1303 for (p = wenv; p && *p; ) {
1304 size_t s = wcslen(p) + 1;
1309 ALLOC_ARRAY(result, size);
1310 COPY_ARRAY(result, wenv, size);
1311 FreeEnvironmentStringsW(wenv);
1316 * If there is a deltaenv, let's accumulate all keys into `array`,
1317 * sort them using the stable git_stable_qsort() and then copy,
1318 * skipping duplicate keys
1320 for (p = wenv; p && *p; ) {
1321 ALLOC_GROW(array, nr + 1, alloc);
1328 /* (over-)assess size needed for wchar version of deltaenv */
1329 for (delta_size = 0, i = 0; deltaenv[i]; i++)
1330 delta_size += strlen(deltaenv[i]) * 2 + 1;
1331 ALLOC_ARRAY(wdeltaenv, delta_size);
1333 /* convert the deltaenv, appending to array */
1334 for (i = 0, p = wdeltaenv; deltaenv[i]; i++) {
1335 ALLOC_GROW(array, nr + 1, alloc);
1336 wlen = xutftowcs(p, deltaenv[i], wdeltaenv + delta_size - p);
1341 git_stable_qsort(array, nr, sizeof(*array), wenvcmp);
1342 ALLOC_ARRAY(result, size + delta_size);
1344 for (p = result, i = 0; i < nr; i++) {
1345 /* Skip any duplicate keys; last one wins */
1346 while (i + 1 < nr && !wenvcmp(array + i, array + i + 1))
1349 /* Skip "to delete" entry */
1350 if (!wcschr(array[i], L'='))
1353 size = wcslen(array[i]) + 1;
1354 COPY_ARRAY(p, array[i], size);
1361 FreeEnvironmentStringsW(wenv);
1365 static void do_unset_environment_variables(void)
1368 char *p = unset_environment_variables;
1375 char *comma = strchr(p, ',');
1387 struct pinfo_t *next;
1391 static struct pinfo_t *pinfo = NULL;
1392 CRITICAL_SECTION pinfo_cs;
1394 /* Used to match and chomp off path components */
1395 static inline int match_last_path_component(const char *path, size_t *len,
1396 const char *component)
1398 size_t component_len = strlen(component);
1399 if (*len < component_len + 1 ||
1400 !is_dir_sep(path[*len - component_len - 1]) ||
1401 fspathncmp(path + *len - component_len, component, component_len))
1403 *len -= component_len + 1;
1404 /* chomp off repeated dir separators */
1405 while (*len > 0 && is_dir_sep(path[*len - 1]))
1410 static int is_msys2_sh(const char *cmd)
1415 if (!strcmp(cmd, "sh")) {
1416 static int ret = -1;
1422 p = path_lookup(cmd, 0);
1426 size_t len = strlen(p);
1428 ret = match_last_path_component(p, &len, "sh.exe") &&
1429 match_last_path_component(p, &len, "bin") &&
1430 match_last_path_component(p, &len, "usr");
1436 if (ends_with(cmd, "\\sh.exe")) {
1440 sh = path_lookup("sh", 0);
1442 return !fspathcmp(cmd, sh);
1448 static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **deltaenv,
1450 int prepend_cmd, int fhin, int fhout, int fherr)
1453 PROCESS_INFORMATION pi;
1455 wchar_t wcmd[MAX_PATH], wdir[MAX_PATH], *wargs, *wenvblk = NULL;
1456 unsigned flags = CREATE_UNICODE_ENVIRONMENT;
1459 const char *(*quote_arg)(const char *arg) =
1460 is_msys2_sh(cmd ? cmd : *argv) ?
1461 quote_arg_msys2 : quote_arg_msvc;
1463 do_unset_environment_variables();
1465 /* Determine whether or not we are associated to a console */
1466 cons = CreateFileW(L"CONOUT$", GENERIC_WRITE,
1467 FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
1468 FILE_ATTRIBUTE_NORMAL, NULL);
1469 if (cons == INVALID_HANDLE_VALUE) {
1470 /* There is no console associated with this process.
1471 * Since the child is a console process, Windows
1472 * would normally create a console window. But
1473 * since we'll be redirecting std streams, we do
1474 * not need the console.
1475 * It is necessary to use DETACHED_PROCESS
1476 * instead of CREATE_NO_WINDOW to make ssh
1477 * recognize that it has no console.
1479 flags |= DETACHED_PROCESS;
1481 /* There is already a console. If we specified
1482 * DETACHED_PROCESS here, too, Windows would
1483 * disassociate the child from the console.
1484 * The same is true for CREATE_NO_WINDOW.
1489 memset(&si, 0, sizeof(si));
1491 si.dwFlags = STARTF_USESTDHANDLES;
1492 si.hStdInput = winansi_get_osfhandle(fhin);
1493 si.hStdOutput = winansi_get_osfhandle(fhout);
1494 si.hStdError = winansi_get_osfhandle(fherr);
1496 if (*argv && !strcmp(cmd, *argv))
1498 else if (xutftowcs_path(wcmd, cmd) < 0)
1500 if (dir && xutftowcs_path(wdir, dir) < 0)
1503 /* concatenate argv, quoting args as we go */
1504 strbuf_init(&args, 0);
1506 char *quoted = (char *)quote_arg(cmd);
1507 strbuf_addstr(&args, quoted);
1511 for (; *argv; argv++) {
1512 char *quoted = (char *)quote_arg(*argv);
1514 strbuf_addch(&args, ' ');
1515 strbuf_addstr(&args, quoted);
1516 if (quoted != *argv)
1520 ALLOC_ARRAY(wargs, st_add(st_mult(2, args.len), 1));
1521 xutftowcs(wargs, args.buf, 2 * args.len + 1);
1522 strbuf_release(&args);
1524 wenvblk = make_environment_block(deltaenv);
1526 memset(&pi, 0, sizeof(pi));
1527 ret = CreateProcessW(*wcmd ? wcmd : NULL, wargs, NULL, NULL, TRUE,
1528 flags, wenvblk, dir ? wdir : NULL, &si, &pi);
1537 CloseHandle(pi.hThread);
1540 * The process ID is the human-readable identifier of the process
1541 * that we want to present in log and error messages. The handle
1542 * is not useful for this purpose. But we cannot close it, either,
1543 * because it is not possible to turn a process ID into a process
1544 * handle after the process terminated.
1545 * Keep the handle in a list for waitpid.
1547 EnterCriticalSection(&pinfo_cs);
1549 struct pinfo_t *info = xmalloc(sizeof(struct pinfo_t));
1550 info->pid = pi.dwProcessId;
1551 info->proc = pi.hProcess;
1555 LeaveCriticalSection(&pinfo_cs);
1557 return (pid_t)pi.dwProcessId;
1560 static pid_t mingw_spawnv(const char *cmd, const char **argv, int prepend_cmd)
1562 return mingw_spawnve_fd(cmd, argv, NULL, NULL, prepend_cmd, 0, 1, 2);
1565 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **deltaenv,
1567 int fhin, int fhout, int fherr)
1570 char *prog = path_lookup(cmd, 0);
1577 const char *interpr = parse_interpreter(prog);
1580 const char *argv0 = argv[0];
1581 char *iprog = path_lookup(interpr, 1);
1588 pid = mingw_spawnve_fd(iprog, argv, deltaenv, dir, 1,
1589 fhin, fhout, fherr);
1595 pid = mingw_spawnve_fd(prog, argv, deltaenv, dir, 0,
1596 fhin, fhout, fherr);
1602 static int try_shell_exec(const char *cmd, char *const *argv)
1604 const char *interpr = parse_interpreter(cmd);
1610 prog = path_lookup(interpr, 1);
1618 while (argv[argc]) argc++;
1619 ALLOC_ARRAY(argv2, argc + 1);
1620 argv2[0] = (char *)cmd; /* full path to the script file */
1621 memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
1622 exec_id = trace2_exec(prog, argv2);
1623 pid = mingw_spawnv(prog, argv2, 1);
1626 if (waitpid(pid, &status, 0) < 0)
1628 trace2_exec_result(exec_id, status);
1631 trace2_exec_result(exec_id, -1);
1632 pid = 1; /* indicate that we tried but failed */
1639 int mingw_execv(const char *cmd, char *const *argv)
1641 /* check if git_command is a shell script */
1642 if (!try_shell_exec(cmd, argv)) {
1646 exec_id = trace2_exec(cmd, (const char **)argv);
1647 pid = mingw_spawnv(cmd, (const char **)argv, 0);
1649 trace2_exec_result(exec_id, -1);
1652 if (waitpid(pid, &status, 0) < 0)
1654 trace2_exec_result(exec_id, status);
1660 int mingw_execvp(const char *cmd, char *const *argv)
1662 char *prog = path_lookup(cmd, 0);
1665 mingw_execv(prog, argv);
1673 int mingw_kill(pid_t pid, int sig)
1675 if (pid > 0 && sig == SIGTERM) {
1676 HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
1678 if (TerminateProcess(h, -1)) {
1683 errno = err_win_to_posix(GetLastError());
1686 } else if (pid > 0 && sig == 0) {
1687 HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
1699 * UTF-8 versions of getenv(), putenv() and unsetenv().
1700 * Internally, they use the CRT's stock UNICODE routines
1701 * to avoid data loss.
1703 char *mingw_getenv(const char *name)
1705 #define GETENV_MAX_RETAIN 64
1706 static char *values[GETENV_MAX_RETAIN];
1707 static int value_counter;
1708 int len_key, len_value;
1711 wchar_t w_value[32768];
1713 if (!name || !*name)
1716 len_key = strlen(name) + 1;
1717 /* We cannot use xcalloc() here because that uses getenv() itself */
1718 w_key = calloc(len_key, sizeof(wchar_t));
1720 die("Out of memory, (tried to allocate %u wchar_t's)", len_key);
1721 xutftowcs(w_key, name, len_key);
1722 /* GetEnvironmentVariableW() only sets the last error upon failure */
1723 SetLastError(ERROR_SUCCESS);
1724 len_value = GetEnvironmentVariableW(w_key, w_value, ARRAY_SIZE(w_value));
1725 if (!len_value && GetLastError() == ERROR_ENVVAR_NOT_FOUND) {
1731 len_value = len_value * 3 + 1;
1732 /* We cannot use xcalloc() here because that uses getenv() itself */
1733 value = calloc(len_value, sizeof(char));
1735 die("Out of memory, (tried to allocate %u bytes)", len_value);
1736 xwcstoutf(value, w_value, len_value);
1739 * We return `value` which is an allocated value and the caller is NOT
1740 * expecting to have to free it, so we keep a round-robin array,
1741 * invalidating the buffer after GETENV_MAX_RETAIN getenv() calls.
1743 free(values[value_counter]);
1744 values[value_counter++] = value;
1745 if (value_counter >= ARRAY_SIZE(values))
1751 int mingw_putenv(const char *namevalue)
1754 wchar_t *wide, *equal;
1757 if (!namevalue || !*namevalue)
1760 size = strlen(namevalue) * 2 + 1;
1761 wide = calloc(size, sizeof(wchar_t));
1763 die("Out of memory, (tried to allocate %u wchar_t's)", size);
1764 xutftowcs(wide, namevalue, size);
1765 equal = wcschr(wide, L'=');
1767 result = SetEnvironmentVariableW(wide, NULL);
1770 result = SetEnvironmentVariableW(wide, equal + 1);
1775 errno = err_win_to_posix(GetLastError());
1777 return result ? 0 : -1;
1780 static void ensure_socket_initialization(void)
1783 static int initialized = 0;
1788 if (WSAStartup(MAKEWORD(2,2), &wsa))
1789 die("unable to initialize winsock subsystem, error %d",
1792 atexit((void(*)(void)) WSACleanup);
1797 int mingw_gethostname(char *name, int namelen)
1799 ensure_socket_initialization();
1800 return gethostname(name, namelen);
1803 #undef gethostbyname
1804 struct hostent *mingw_gethostbyname(const char *host)
1806 ensure_socket_initialization();
1807 return gethostbyname(host);
1811 int mingw_getaddrinfo(const char *node, const char *service,
1812 const struct addrinfo *hints, struct addrinfo **res)
1814 ensure_socket_initialization();
1815 return getaddrinfo(node, service, hints, res);
1818 int mingw_socket(int domain, int type, int protocol)
1823 ensure_socket_initialization();
1824 s = WSASocket(domain, type, protocol, NULL, 0, 0);
1825 if (s == INVALID_SOCKET) {
1827 * WSAGetLastError() values are regular BSD error codes
1828 * biased by WSABASEERR.
1829 * However, strerror() does not know about networking
1830 * specific errors, which are values beginning at 38 or so.
1831 * Therefore, we choose to leave the biased error code
1832 * in errno so that _if_ someone looks up the code somewhere,
1833 * then it is at least the number that are usually listed.
1835 errno = WSAGetLastError();
1838 /* convert into a file descriptor */
1839 if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
1841 return error("unable to make a socket file descriptor: %s",
1848 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
1850 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1851 return connect(s, sa, sz);
1855 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz)
1857 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1858 return bind(s, sa, sz);
1862 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen)
1864 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1865 return setsockopt(s, lvl, optname, (const char*)optval, optlen);
1869 int mingw_shutdown(int sockfd, int how)
1871 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1872 return shutdown(s, how);
1876 int mingw_listen(int sockfd, int backlog)
1878 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1879 return listen(s, backlog);
1883 int mingw_accept(int sockfd1, struct sockaddr *sa, socklen_t *sz)
1887 SOCKET s1 = (SOCKET)_get_osfhandle(sockfd1);
1888 SOCKET s2 = accept(s1, sa, sz);
1890 /* convert into a file descriptor */
1891 if ((sockfd2 = _open_osfhandle(s2, O_RDWR|O_BINARY)) < 0) {
1894 return error("unable to make a socket file descriptor: %s",
1901 int mingw_rename(const char *pold, const char *pnew)
1905 wchar_t wpold[MAX_PATH], wpnew[MAX_PATH];
1906 if (xutftowcs_path(wpold, pold) < 0 || xutftowcs_path(wpnew, pnew) < 0)
1910 * Try native rename() first to get errno right.
1911 * It is based on MoveFile(), which cannot overwrite existing files.
1913 if (!_wrename(wpold, wpnew))
1915 if (errno != EEXIST)
1918 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1920 /* TODO: translate more errors */
1921 gle = GetLastError();
1922 if (gle == ERROR_ACCESS_DENIED &&
1923 (attrs = GetFileAttributesW(wpnew)) != INVALID_FILE_ATTRIBUTES) {
1924 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
1925 DWORD attrsold = GetFileAttributesW(wpold);
1926 if (attrsold == INVALID_FILE_ATTRIBUTES ||
1927 !(attrsold & FILE_ATTRIBUTE_DIRECTORY))
1929 else if (!_wrmdir(wpnew))
1933 if ((attrs & FILE_ATTRIBUTE_READONLY) &&
1934 SetFileAttributesW(wpnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
1935 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1937 gle = GetLastError();
1938 /* revert file attributes on failure */
1939 SetFileAttributesW(wpnew, attrs);
1942 if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
1944 * We assume that some other process had the source or
1945 * destination file open at the wrong moment and retry.
1946 * In order to give the other process a higher chance to
1947 * complete its operation, we give up our time slice now.
1948 * If we have to retry again, we do sleep a bit.
1950 Sleep(delay[tries]);
1954 if (gle == ERROR_ACCESS_DENIED &&
1955 ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
1956 "Should I try again?", pold, pnew))
1964 * Note that this doesn't return the actual pagesize, but
1965 * the allocation granularity. If future Windows specific git code
1966 * needs the real getpagesize function, we need to find another solution.
1968 int mingw_getpagesize(void)
1972 return si.dwAllocationGranularity;
1975 /* See https://msdn.microsoft.com/en-us/library/windows/desktop/ms724435.aspx */
1976 enum EXTENDED_NAME_FORMAT {
1978 NameUserPrincipal = 8
1981 static char *get_extended_user_info(enum EXTENDED_NAME_FORMAT type)
1983 DECLARE_PROC_ADDR(secur32.dll, BOOL, GetUserNameExW,
1984 enum EXTENDED_NAME_FORMAT, LPCWSTR, PULONG);
1985 static wchar_t wbuffer[1024];
1988 if (!INIT_PROC_ADDR(GetUserNameExW))
1991 len = ARRAY_SIZE(wbuffer);
1992 if (GetUserNameExW(type, wbuffer, &len)) {
1993 char *converted = xmalloc((len *= 3));
1994 if (xwcstoutf(converted, wbuffer, len) >= 0)
2002 char *mingw_query_user_email(void)
2004 return get_extended_user_info(NameUserPrincipal);
2007 struct passwd *getpwuid(int uid)
2009 static unsigned initialized;
2010 static char user_name[100];
2011 static struct passwd *p;
2018 len = ARRAY_SIZE(buf);
2019 if (!GetUserNameW(buf, &len)) {
2024 if (xwcstoutf(user_name, buf, sizeof(user_name)) < 0) {
2029 p = xmalloc(sizeof(*p));
2030 p->pw_name = user_name;
2031 p->pw_gecos = get_extended_user_info(NameDisplay);
2033 p->pw_gecos = "unknown";
2040 static HANDLE timer_event;
2041 static HANDLE timer_thread;
2042 static int timer_interval;
2043 static int one_shot;
2044 static sig_handler_t timer_fn = SIG_DFL, sigint_fn = SIG_DFL;
2046 /* The timer works like this:
2047 * The thread, ticktack(), is a trivial routine that most of the time
2048 * only waits to receive the signal to terminate. The main thread tells
2049 * the thread to terminate by setting the timer_event to the signalled
2051 * But ticktack() interrupts the wait state after the timer's interval
2052 * length to call the signal handler.
2055 static unsigned __stdcall ticktack(void *dummy)
2057 while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
2058 mingw_raise(SIGALRM);
2065 static int start_timer_thread(void)
2067 timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
2069 timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
2071 return errno = ENOMEM,
2072 error("cannot start timer thread");
2074 return errno = ENOMEM,
2075 error("cannot allocate resources for timer");
2079 static void stop_timer_thread(void)
2082 SetEvent(timer_event); /* tell thread to terminate */
2084 int rc = WaitForSingleObject(timer_thread, 10000);
2085 if (rc == WAIT_TIMEOUT)
2086 error("timer thread did not terminate timely");
2087 else if (rc != WAIT_OBJECT_0)
2088 error("waiting for timer thread failed: %lu",
2090 CloseHandle(timer_thread);
2093 CloseHandle(timer_event);
2095 timer_thread = NULL;
2098 static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2)
2100 return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec;
2103 int setitimer(int type, struct itimerval *in, struct itimerval *out)
2105 static const struct timeval zero;
2106 static int atexit_done;
2109 return errno = EINVAL,
2110 error("setitimer param 3 != NULL not implemented");
2111 if (!is_timeval_eq(&in->it_interval, &zero) &&
2112 !is_timeval_eq(&in->it_interval, &in->it_value))
2113 return errno = EINVAL,
2114 error("setitimer: it_interval must be zero or eq it_value");
2117 stop_timer_thread();
2119 if (is_timeval_eq(&in->it_value, &zero) &&
2120 is_timeval_eq(&in->it_interval, &zero))
2123 timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000;
2124 one_shot = is_timeval_eq(&in->it_interval, &zero);
2126 atexit(stop_timer_thread);
2129 return start_timer_thread();
2132 int sigaction(int sig, struct sigaction *in, struct sigaction *out)
2135 return errno = EINVAL,
2136 error("sigaction only implemented for SIGALRM");
2138 return errno = EINVAL,
2139 error("sigaction: param 3 != NULL not implemented");
2141 timer_fn = in->sa_handler;
2146 sig_handler_t mingw_signal(int sig, sig_handler_t handler)
2158 sigint_fn = handler;
2162 return signal(sig, handler);
2169 int mingw_raise(int sig)
2173 if (timer_fn == SIG_DFL) {
2174 if (isatty(STDERR_FILENO))
2175 fputs("Alarm clock\n", stderr);
2176 exit(128 + SIGALRM);
2177 } else if (timer_fn != SIG_IGN)
2182 if (sigint_fn == SIG_DFL)
2184 else if (sigint_fn != SIG_IGN)
2188 #if defined(_MSC_VER)
2195 case SIGABRT_COMPAT:
2197 * The <signal.h> header in the MS C Runtime defines 8 signals
2198 * as being supported on the platform. Anything else causes an
2199 * "Invalid signal or error" (which in DEBUG builds causes the
2200 * Abort/Retry/Ignore dialog). We by-pass the CRT for things we
2201 * already know will fail.
2218 int link(const char *oldpath, const char *newpath)
2220 wchar_t woldpath[MAX_PATH], wnewpath[MAX_PATH];
2221 if (xutftowcs_path(woldpath, oldpath) < 0 ||
2222 xutftowcs_path(wnewpath, newpath) < 0)
2225 if (!CreateHardLinkW(wnewpath, woldpath, NULL)) {
2226 errno = err_win_to_posix(GetLastError());
2232 pid_t waitpid(pid_t pid, int *status, int options)
2234 HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
2241 if (pid > 0 && options & WNOHANG) {
2242 if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) {
2246 options &= ~WNOHANG;
2250 struct pinfo_t **ppinfo;
2251 if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
2257 GetExitCodeProcess(h, (LPDWORD)status);
2259 EnterCriticalSection(&pinfo_cs);
2263 struct pinfo_t *info = *ppinfo;
2264 if (info->pid == pid) {
2265 CloseHandle(info->proc);
2266 *ppinfo = info->next;
2270 ppinfo = &info->next;
2273 LeaveCriticalSection(&pinfo_cs);
2284 int xutftowcsn(wchar_t *wcs, const char *utfs, size_t wcslen, int utflen)
2286 int upos = 0, wpos = 0;
2287 const unsigned char *utf = (const unsigned char*) utfs;
2288 if (!utf || !wcs || wcslen < 1) {
2292 /* reserve space for \0 */
2297 while (upos < utflen) {
2298 int c = utf[upos++] & 0xff;
2299 if (utflen == INT_MAX && c == 0)
2302 if (wpos >= wcslen) {
2311 } else if (c >= 0xc2 && c < 0xe0 && upos < utflen &&
2312 (utf[upos] & 0xc0) == 0x80) {
2314 c = ((c & 0x1f) << 6);
2315 c |= (utf[upos++] & 0x3f);
2317 } else if (c >= 0xe0 && c < 0xf0 && upos + 1 < utflen &&
2318 !(c == 0xe0 && utf[upos] < 0xa0) && /* over-long encoding */
2319 (utf[upos] & 0xc0) == 0x80 &&
2320 (utf[upos + 1] & 0xc0) == 0x80) {
2322 c = ((c & 0x0f) << 12);
2323 c |= ((utf[upos++] & 0x3f) << 6);
2324 c |= (utf[upos++] & 0x3f);
2326 } else if (c >= 0xf0 && c < 0xf5 && upos + 2 < utflen &&
2327 wpos + 1 < wcslen &&
2328 !(c == 0xf0 && utf[upos] < 0x90) && /* over-long encoding */
2329 !(c == 0xf4 && utf[upos] >= 0x90) && /* > \u10ffff */
2330 (utf[upos] & 0xc0) == 0x80 &&
2331 (utf[upos + 1] & 0xc0) == 0x80 &&
2332 (utf[upos + 2] & 0xc0) == 0x80) {
2333 /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
2334 c = ((c & 0x07) << 18);
2335 c |= ((utf[upos++] & 0x3f) << 12);
2336 c |= ((utf[upos++] & 0x3f) << 6);
2337 c |= (utf[upos++] & 0x3f);
2339 wcs[wpos++] = 0xd800 | (c >> 10);
2340 wcs[wpos++] = 0xdc00 | (c & 0x3ff);
2341 } else if (c >= 0xa0) {
2342 /* invalid utf-8 byte, printable unicode char: convert 1:1 */
2345 /* invalid utf-8 byte, non-printable unicode: convert to hex */
2346 static const char *hex = "0123456789abcdef";
2347 wcs[wpos++] = hex[c >> 4];
2349 wcs[wpos++] = hex[c & 0x0f];
2356 int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen)
2358 if (!wcs || !utf || utflen < 1) {
2362 utflen = WideCharToMultiByte(CP_UTF8, 0, wcs, -1, utf, utflen, NULL, NULL);
2369 static void setup_windows_environment(void)
2371 char *tmp = getenv("TMPDIR");
2373 /* on Windows it is TMP and TEMP */
2375 if (!(tmp = getenv("TMP")))
2376 tmp = getenv("TEMP");
2378 setenv("TMPDIR", tmp, 1);
2379 tmp = getenv("TMPDIR");
2385 * Convert all dir separators to forward slashes,
2386 * to help shell commands called from the Git
2387 * executable (by not mistaking the dir separators
2388 * for escape characters).
2390 convert_slashes(tmp);
2393 /* simulate TERM to enable auto-color (see color.c) */
2394 if (!getenv("TERM"))
2395 setenv("TERM", "cygwin", 1);
2397 /* calculate HOME if not set */
2398 if (!getenv("HOME")) {
2400 * try $HOMEDRIVE$HOMEPATH - the home share may be a network
2401 * location, thus also check if the path exists (i.e. is not
2404 if ((tmp = getenv("HOMEDRIVE"))) {
2405 struct strbuf buf = STRBUF_INIT;
2406 strbuf_addstr(&buf, tmp);
2407 if ((tmp = getenv("HOMEPATH"))) {
2408 strbuf_addstr(&buf, tmp);
2409 if (is_directory(buf.buf))
2410 setenv("HOME", buf.buf, 1);
2412 tmp = NULL; /* use $USERPROFILE */
2414 strbuf_release(&buf);
2416 /* use $USERPROFILE if the home share is not available */
2417 if (!tmp && (tmp = getenv("USERPROFILE")))
2418 setenv("HOME", tmp, 1);
2422 int is_valid_win32_path(const char *path)
2424 int preceding_space_or_period = 0, i = 0, periods = 0;
2429 skip_dos_drive_prefix((char **)&path);
2435 case '/': case '\\':
2436 /* cannot end in ` ` or `.`, except for `.` and `..` */
2437 if (preceding_space_or_period &&
2438 (i != periods || periods > 2))
2443 i = periods = preceding_space_or_period = 0;
2449 preceding_space_or_period = 1;
2452 case ':': /* DOS drive prefix was already skipped */
2453 case '<': case '>': case '"': case '|': case '?': case '*':
2454 /* illegal character */
2457 if (c > '\0' && c < '\x20')
2458 /* illegal character */
2461 preceding_space_or_period = 0;
2466 #if !defined(_MSC_VER)
2468 * Disable MSVCRT command line wildcard expansion (__getmainargs called from
2469 * mingw startup code, see init.c in mingw runtime).
2474 static NORETURN void die_startup(void)
2476 fputs("fatal: not enough memory for initialization", stderr);
2480 static void *malloc_startup(size_t size)
2482 void *result = malloc(size);
2488 static char *wcstoutfdup_startup(char *buffer, const wchar_t *wcs, size_t len)
2490 len = xwcstoutf(buffer, wcs, len) + 1;
2491 return memcpy(malloc_startup(len), buffer, len);
2494 static void maybe_redirect_std_handle(const wchar_t *key, DWORD std_id, int fd,
2495 DWORD desired_access, DWORD flags)
2497 DWORD create_flag = fd ? OPEN_ALWAYS : OPEN_EXISTING;
2498 wchar_t buf[MAX_PATH];
2499 DWORD max = ARRAY_SIZE(buf);
2501 DWORD ret = GetEnvironmentVariableW(key, buf, max);
2503 if (!ret || ret >= max)
2506 /* make sure this does not leak into child processes */
2507 SetEnvironmentVariableW(key, NULL);
2508 if (!wcscmp(buf, L"off")) {
2510 handle = GetStdHandle(std_id);
2511 if (handle != INVALID_HANDLE_VALUE)
2512 CloseHandle(handle);
2515 if (std_id == STD_ERROR_HANDLE && !wcscmp(buf, L"2>&1")) {
2516 handle = GetStdHandle(STD_OUTPUT_HANDLE);
2517 if (handle == INVALID_HANDLE_VALUE) {
2519 handle = GetStdHandle(std_id);
2520 if (handle != INVALID_HANDLE_VALUE)
2521 CloseHandle(handle);
2523 int new_fd = _open_osfhandle((intptr_t)handle, O_BINARY);
2524 SetStdHandle(std_id, handle);
2526 /* do *not* close the new_fd: that would close stdout */
2530 handle = CreateFileW(buf, desired_access, 0, NULL, create_flag,
2532 if (handle != INVALID_HANDLE_VALUE) {
2533 int new_fd = _open_osfhandle((intptr_t)handle, O_BINARY);
2534 SetStdHandle(std_id, handle);
2540 static void maybe_redirect_std_handles(void)
2542 maybe_redirect_std_handle(L"GIT_REDIRECT_STDIN", STD_INPUT_HANDLE, 0,
2543 GENERIC_READ, FILE_ATTRIBUTE_NORMAL);
2544 maybe_redirect_std_handle(L"GIT_REDIRECT_STDOUT", STD_OUTPUT_HANDLE, 1,
2545 GENERIC_WRITE, FILE_ATTRIBUTE_NORMAL);
2546 maybe_redirect_std_handle(L"GIT_REDIRECT_STDERR", STD_ERROR_HANDLE, 2,
2547 GENERIC_WRITE, FILE_FLAG_NO_BUFFERING);
2557 * We implement wmain() and compile with -municode, which would
2558 * normally ignore main(), but we call the latter from the former
2559 * so that we can handle non-ASCII command-line parameters
2562 * To be more compatible with the core git code, we convert
2563 * argv into UTF8 and pass them directly to main().
2565 int wmain(int argc, const wchar_t **wargv)
2567 int i, maxlen, exit_status;
2568 char *buffer, **save;
2571 trace2_initialize_clock();
2575 _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);
2578 #ifdef USE_MSVC_CRTDBG
2579 _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
2583 maybe_redirect_std_handles();
2585 /* determine size of argv and environ conversion buffer */
2586 maxlen = wcslen(wargv[0]);
2587 for (i = 1; i < argc; i++)
2588 maxlen = max(maxlen, wcslen(wargv[i]));
2590 /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */
2591 maxlen = 3 * maxlen + 1;
2592 buffer = malloc_startup(maxlen);
2595 * Create a UTF-8 version of w_argv. Also create a "save" copy
2596 * to remember all the string pointers because parse_options()
2597 * will remove claimed items from the argv that we pass down.
2599 ALLOC_ARRAY(argv, argc + 1);
2600 ALLOC_ARRAY(save, argc + 1);
2601 for (i = 0; i < argc; i++)
2602 argv[i] = save[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen);
2603 argv[i] = save[i] = NULL;
2606 /* fix Windows specific environment settings */
2607 setup_windows_environment();
2609 unset_environment_variables = xstrdup("PERL5LIB");
2611 /* initialize critical section for waitpid pinfo_t list */
2612 InitializeCriticalSection(&pinfo_cs);
2614 /* set up default file mode and file modes for stdin/out/err */
2616 _setmode(_fileno(stdin), _O_BINARY);
2617 _setmode(_fileno(stdout), _O_BINARY);
2618 _setmode(_fileno(stderr), _O_BINARY);
2620 /* initialize Unicode console */
2623 /* invoke the real main() using our utf8 version of argv. */
2624 exit_status = main(argc, argv);
2626 for (i = 0; i < argc; i++)
2634 int uname(struct utsname *buf)
2636 unsigned v = (unsigned)GetVersion();
2637 memset(buf, 0, sizeof(*buf));
2638 xsnprintf(buf->sysname, sizeof(buf->sysname), "Windows");
2639 xsnprintf(buf->release, sizeof(buf->release),
2640 "%u.%u", v & 0xff, (v >> 8) & 0xff);
2641 /* assuming NT variants only.. */
2642 xsnprintf(buf->version, sizeof(buf->version),
2643 "%u", (v >> 16) & 0x7fff);