1 #include "../git-compat-util.h"
6 static int err_win_to_posix(DWORD winerr)
10 case ERROR_ACCESS_DENIED: error = EACCES; break;
11 case ERROR_ACCOUNT_DISABLED: error = EACCES; break;
12 case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break;
13 case ERROR_ALREADY_ASSIGNED: error = EBUSY; break;
14 case ERROR_ALREADY_EXISTS: error = EEXIST; break;
15 case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break;
16 case ERROR_BAD_COMMAND: error = EIO; break;
17 case ERROR_BAD_DEVICE: error = ENODEV; break;
18 case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break;
19 case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break;
20 case ERROR_BAD_FORMAT: error = ENOEXEC; break;
21 case ERROR_BAD_LENGTH: error = EINVAL; break;
22 case ERROR_BAD_PATHNAME: error = ENOENT; break;
23 case ERROR_BAD_PIPE: error = EPIPE; break;
24 case ERROR_BAD_UNIT: error = ENODEV; break;
25 case ERROR_BAD_USERNAME: error = EINVAL; break;
26 case ERROR_BROKEN_PIPE: error = EPIPE; break;
27 case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break;
28 case ERROR_BUSY: error = EBUSY; break;
29 case ERROR_BUSY_DRIVE: error = EBUSY; break;
30 case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break;
31 case ERROR_CANNOT_MAKE: error = EACCES; break;
32 case ERROR_CANTOPEN: error = EIO; break;
33 case ERROR_CANTREAD: error = EIO; break;
34 case ERROR_CANTWRITE: error = EIO; break;
35 case ERROR_CRC: error = EIO; break;
36 case ERROR_CURRENT_DIRECTORY: error = EACCES; break;
37 case ERROR_DEVICE_IN_USE: error = EBUSY; break;
38 case ERROR_DEV_NOT_EXIST: error = ENODEV; break;
39 case ERROR_DIRECTORY: error = EINVAL; break;
40 case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break;
41 case ERROR_DISK_CHANGE: error = EIO; break;
42 case ERROR_DISK_FULL: error = ENOSPC; break;
43 case ERROR_DRIVE_LOCKED: error = EBUSY; break;
44 case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break;
45 case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break;
46 case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break;
47 case ERROR_FILE_EXISTS: error = EEXIST; break;
48 case ERROR_FILE_INVALID: error = ENODEV; break;
49 case ERROR_FILE_NOT_FOUND: error = ENOENT; break;
50 case ERROR_GEN_FAILURE: error = EIO; break;
51 case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break;
52 case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break;
53 case ERROR_INVALID_ACCESS: error = EACCES; break;
54 case ERROR_INVALID_ADDRESS: error = EFAULT; break;
55 case ERROR_INVALID_BLOCK: error = EFAULT; break;
56 case ERROR_INVALID_DATA: error = EINVAL; break;
57 case ERROR_INVALID_DRIVE: error = ENODEV; break;
58 case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break;
59 case ERROR_INVALID_FLAGS: error = EINVAL; break;
60 case ERROR_INVALID_FUNCTION: error = ENOSYS; break;
61 case ERROR_INVALID_HANDLE: error = EBADF; break;
62 case ERROR_INVALID_LOGON_HOURS: error = EACCES; break;
63 case ERROR_INVALID_NAME: error = EINVAL; break;
64 case ERROR_INVALID_OWNER: error = EINVAL; break;
65 case ERROR_INVALID_PARAMETER: error = EINVAL; break;
66 case ERROR_INVALID_PASSWORD: error = EPERM; break;
67 case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break;
68 case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break;
69 case ERROR_INVALID_TARGET_HANDLE: error = EIO; break;
70 case ERROR_INVALID_WORKSTATION: error = EACCES; break;
71 case ERROR_IO_DEVICE: error = EIO; break;
72 case ERROR_IO_INCOMPLETE: error = EINTR; break;
73 case ERROR_LOCKED: error = EBUSY; break;
74 case ERROR_LOCK_VIOLATION: error = EACCES; break;
75 case ERROR_LOGON_FAILURE: error = EACCES; break;
76 case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break;
77 case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break;
78 case ERROR_MORE_DATA: error = EPIPE; break;
79 case ERROR_NEGATIVE_SEEK: error = ESPIPE; break;
80 case ERROR_NOACCESS: error = EFAULT; break;
81 case ERROR_NONE_MAPPED: error = EINVAL; break;
82 case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break;
83 case ERROR_NOT_READY: error = EAGAIN; break;
84 case ERROR_NOT_SAME_DEVICE: error = EXDEV; break;
85 case ERROR_NO_DATA: error = EPIPE; break;
86 case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break;
87 case ERROR_NO_PROC_SLOTS: error = EAGAIN; break;
88 case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break;
89 case ERROR_OPEN_FAILED: error = EIO; break;
90 case ERROR_OPEN_FILES: error = EBUSY; break;
91 case ERROR_OPERATION_ABORTED: error = EINTR; break;
92 case ERROR_OUTOFMEMORY: error = ENOMEM; break;
93 case ERROR_PASSWORD_EXPIRED: error = EACCES; break;
94 case ERROR_PATH_BUSY: error = EBUSY; break;
95 case ERROR_PATH_NOT_FOUND: error = ENOENT; break;
96 case ERROR_PIPE_BUSY: error = EBUSY; break;
97 case ERROR_PIPE_CONNECTED: error = EPIPE; break;
98 case ERROR_PIPE_LISTENING: error = EPIPE; break;
99 case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break;
100 case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break;
101 case ERROR_READ_FAULT: error = EIO; break;
102 case ERROR_SEEK: error = EIO; break;
103 case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break;
104 case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break;
105 case ERROR_SHARING_VIOLATION: error = EACCES; break;
106 case ERROR_STACK_OVERFLOW: error = ENOMEM; break;
107 case ERROR_SWAPERROR: error = ENOENT; break;
108 case ERROR_TOO_MANY_MODULES: error = EMFILE; break;
109 case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break;
110 case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break;
111 case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break;
112 case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break;
113 case ERROR_WRITE_FAULT: error = EIO; break;
114 case ERROR_WRITE_PROTECT: error = EROFS; break;
120 int mingw_open (const char *filename, int oflags, ...)
126 va_start(args, oflags);
127 mode = va_arg(args, int);
130 if (!strcmp(filename, "/dev/null"))
133 fd = open(filename, oflags, mode);
135 if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) {
136 DWORD attrs = GetFileAttributes(filename);
137 if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
143 static inline time_t filetime_to_time_t(const FILETIME *ft)
145 long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
146 winTime -= 116444736000000000LL; /* Windows to Unix Epoch conversion */
147 winTime /= 10000000; /* Nano to seconds resolution */
148 return (time_t)winTime;
151 /* We keep the do_lstat code in a separate function to avoid recursion.
152 * When a path ends with a slash, the stat will fail with ENOENT. In
153 * this case, we strip the trailing slashes and stat again.
155 static int do_lstat(const char *file_name, struct stat *buf)
157 WIN32_FILE_ATTRIBUTE_DATA fdata;
159 if (!(errno = get_file_attr(file_name, &fdata))) {
164 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
165 buf->st_size = fdata.nFileSizeLow |
166 (((off_t)fdata.nFileSizeHigh)<<32);
167 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
168 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
169 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
170 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
176 /* We provide our own lstat/fstat functions, since the provided
177 * lstat/fstat functions are so slow. These stat functions are
178 * tailored for Git's usage (read: fast), and are not meant to be
179 * complete. Note that Git stat()s are redirected to mingw_lstat()
180 * too, since Windows doesn't really handle symlinks that well.
182 int mingw_lstat(const char *file_name, struct stat *buf)
185 static char alt_name[PATH_MAX];
187 if (!do_lstat(file_name, buf))
190 /* if file_name ended in a '/', Windows returned ENOENT;
191 * try again without trailing slashes
196 namelen = strlen(file_name);
197 if (namelen && file_name[namelen-1] != '/')
199 while (namelen && file_name[namelen-1] == '/')
201 if (!namelen || namelen >= PATH_MAX)
204 memcpy(alt_name, file_name, namelen);
205 alt_name[namelen] = 0;
206 return do_lstat(alt_name, buf);
210 int mingw_fstat(int fd, struct stat *buf)
212 HANDLE fh = (HANDLE)_get_osfhandle(fd);
213 BY_HANDLE_FILE_INFORMATION fdata;
215 if (fh == INVALID_HANDLE_VALUE) {
219 /* direct non-file handles to MS's fstat() */
220 if (GetFileType(fh) != FILE_TYPE_DISK)
221 return _fstati64(fd, buf);
223 if (GetFileInformationByHandle(fh, &fdata)) {
228 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
229 buf->st_size = fdata.nFileSizeLow |
230 (((off_t)fdata.nFileSizeHigh)<<32);
231 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
232 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
233 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
234 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
241 static inline void time_t_to_filetime(time_t t, FILETIME *ft)
243 long long winTime = t * 10000000LL + 116444736000000000LL;
244 ft->dwLowDateTime = winTime;
245 ft->dwHighDateTime = winTime >> 32;
248 int mingw_utime (const char *file_name, const struct utimbuf *times)
253 /* must have write permission */
254 if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
257 time_t_to_filetime(times->modtime, &mft);
258 time_t_to_filetime(times->actime, &aft);
259 if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
268 unsigned int sleep (unsigned int seconds)
274 int mkstemp(char *template)
276 char *filename = mktemp(template);
277 if (filename == NULL)
279 return open(filename, O_RDWR | O_CREAT, 0600);
282 int gettimeofday(struct timeval *tv, void *tz)
287 tm.tm_year = st.wYear-1900;
288 tm.tm_mon = st.wMonth-1;
289 tm.tm_mday = st.wDay;
290 tm.tm_hour = st.wHour;
291 tm.tm_min = st.wMinute;
292 tm.tm_sec = st.wSecond;
293 tv->tv_sec = tm_to_time_t(&tm);
296 tv->tv_usec = st.wMilliseconds*1000;
300 int pipe(int filedes[2])
305 if (_pipe(filedes, 8192, 0) < 0)
308 parent = GetCurrentProcess();
310 if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[0]),
311 parent, &h[0], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
316 if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[1]),
317 parent, &h[1], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
323 fd = _open_osfhandle((int)h[0], O_NOINHERIT);
333 fd = _open_osfhandle((int)h[1], O_NOINHERIT);
345 int poll(struct pollfd *ufds, unsigned int nfds, int timeout)
354 return errno = EINVAL, error("poll timeout not supported");
357 /* When there is only one fd to wait for, then we pretend that
358 * input is available and let the actual wait happen when the
359 * caller invokes read().
362 if (!(ufds[0].events & POLLIN))
363 return errno = EINVAL, error("POLLIN not set");
364 ufds[0].revents = POLLIN;
370 for (i = 0; i < nfds; i++) {
372 HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd);
373 if (h == INVALID_HANDLE_VALUE)
374 return -1; /* errno was set */
376 if (!(ufds[i].events & POLLIN))
377 return errno = EINVAL, error("POLLIN not set");
379 /* this emulation works only for pipes */
380 if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) {
381 int err = GetLastError();
382 if (err == ERROR_BROKEN_PIPE) {
383 ufds[i].revents = POLLHUP;
387 return error("PeekNamedPipe failed,"
388 " GetLastError: %u", err);
391 ufds[i].revents = POLLIN;
397 /* The only times that we spin here is when the process
398 * that is connected through the pipes is waiting for
399 * its own input data to become available. But since
400 * the process (pack-objects) is itself CPU intensive,
401 * it will happily pick up the time slice that we are
402 * relinquishing here.
410 struct tm *gmtime_r(const time_t *timep, struct tm *result)
412 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
413 memcpy(result, gmtime(timep), sizeof(struct tm));
417 struct tm *localtime_r(const time_t *timep, struct tm *result)
419 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
420 memcpy(result, localtime(timep), sizeof(struct tm));
425 char *mingw_getcwd(char *pointer, int len)
428 char *ret = getcwd(pointer, len);
431 for (i = 0; pointer[i]; i++)
432 if (pointer[i] == '\\')
438 char *mingw_getenv(const char *name)
440 char *result = getenv(name);
441 if (!result && !strcmp(name, "TMPDIR")) {
442 /* on Windows it is TMP and TEMP */
443 result = getenv("TMP");
445 result = getenv("TEMP");
451 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
452 * (Parsing C++ Command-Line Arguments)
454 static const char *quote_arg(const char *arg)
456 /* count chars to quote */
458 int force_quotes = 0;
461 if (!*p) force_quotes = 1;
463 if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'')
467 else if (*p == '\\') {
481 if (!force_quotes && n == 0)
484 /* insert \ where necessary */
485 d = q = xmalloc(len+n+3);
490 else if (*arg == '\\') {
492 while (*arg == '\\') {
509 static const char *parse_interpreter(const char *cmd)
511 static char buf[100];
515 /* don't even try a .exe */
517 if (n >= 4 && !strcasecmp(cmd+n-4, ".exe"))
520 fd = open(cmd, O_RDONLY);
523 n = read(fd, buf, sizeof(buf)-1);
525 if (n < 4) /* at least '#!/x' and not error */
528 if (buf[0] != '#' || buf[1] != '!')
531 p = buf + strcspn(buf, "\r\n");
536 if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\')))
539 if ((opt = strchr(p+1, ' ')))
545 * Splits the PATH into parts.
547 static char **get_path_split(void)
549 char *p, **path, *envpath = getenv("PATH");
552 if (!envpath || !*envpath)
555 envpath = xstrdup(envpath);
561 if (*dir) { /* not earlier, catches series of ; */
568 path = xmalloc((n+1)*sizeof(char *));
573 path[i++] = xstrdup(p);
583 static void free_path_split(char **path)
596 * exe_only means that we only want to detect .exe files, but not scripts
597 * (which do not have an extension)
599 static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only)
602 snprintf(path, sizeof(path), "%s/%s.exe", dir, cmd);
604 if (!isexe && access(path, F_OK) == 0)
605 return xstrdup(path);
606 path[strlen(path)-4] = '\0';
607 if ((!exe_only || isexe) && access(path, F_OK) == 0)
608 if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY))
609 return xstrdup(path);
614 * Determines the absolute path of cmd using the the split path in path.
615 * If cmd contains a slash or backslash, no lookup is performed.
617 static char *path_lookup(const char *cmd, char **path, int exe_only)
620 int len = strlen(cmd);
621 int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe");
623 if (strchr(cmd, '/') || strchr(cmd, '\\'))
626 while (!prog && *path)
627 prog = lookup_prog(*path++, cmd, isexe, exe_only);
632 static int env_compare(const void *a, const void *b)
636 return strcasecmp(*ea, *eb);
639 static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
643 PROCESS_INFORMATION pi;
644 struct strbuf envblk, args;
648 /* Determine whether or not we are associated to a console */
649 HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
650 FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
651 FILE_ATTRIBUTE_NORMAL, NULL);
652 if (cons == INVALID_HANDLE_VALUE) {
653 /* There is no console associated with this process.
654 * Since the child is a console process, Windows
655 * would normally create a console window. But
656 * since we'll be redirecting std streams, we do
657 * not need the console.
658 * It is necessary to use DETACHED_PROCESS
659 * instead of CREATE_NO_WINDOW to make ssh
660 * recognize that it has no console.
662 flags = DETACHED_PROCESS;
664 /* There is already a console. If we specified
665 * DETACHED_PROCESS here, too, Windows would
666 * disassociate the child from the console.
667 * The same is true for CREATE_NO_WINDOW.
673 memset(&si, 0, sizeof(si));
675 si.dwFlags = STARTF_USESTDHANDLES;
676 si.hStdInput = (HANDLE) _get_osfhandle(0);
677 si.hStdOutput = (HANDLE) _get_osfhandle(1);
678 si.hStdError = (HANDLE) _get_osfhandle(2);
680 /* concatenate argv, quoting args as we go */
681 strbuf_init(&args, 0);
683 char *quoted = (char *)quote_arg(cmd);
684 strbuf_addstr(&args, quoted);
688 for (; *argv; argv++) {
689 char *quoted = (char *)quote_arg(*argv);
691 strbuf_addch(&args, ' ');
692 strbuf_addstr(&args, quoted);
699 char **e, **sorted_env;
701 for (e = env; *e; e++)
704 /* environment must be sorted */
705 sorted_env = xmalloc(sizeof(*sorted_env) * (count + 1));
706 memcpy(sorted_env, env, sizeof(*sorted_env) * (count + 1));
707 qsort(sorted_env, count, sizeof(*sorted_env), env_compare);
709 strbuf_init(&envblk, 0);
710 for (e = sorted_env; *e; e++) {
711 strbuf_addstr(&envblk, *e);
712 strbuf_addch(&envblk, '\0');
717 memset(&pi, 0, sizeof(pi));
718 ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags,
719 env ? envblk.buf : NULL, NULL, &si, &pi);
722 strbuf_release(&envblk);
723 strbuf_release(&args);
729 CloseHandle(pi.hThread);
730 return (pid_t)pi.hProcess;
733 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
736 char **path = get_path_split();
737 char *prog = path_lookup(cmd, path, 0);
744 const char *interpr = parse_interpreter(prog);
747 const char *argv0 = argv[0];
748 char *iprog = path_lookup(interpr, path, 1);
755 pid = mingw_spawnve(iprog, argv, env, 1);
761 pid = mingw_spawnve(prog, argv, env, 0);
764 free_path_split(path);
768 static int try_shell_exec(const char *cmd, char *const *argv, char **env)
770 const char *interpr = parse_interpreter(cmd);
777 path = get_path_split();
778 prog = path_lookup(interpr, path, 1);
782 while (argv[argc]) argc++;
783 argv2 = xmalloc(sizeof(*argv) * (argc+1));
784 argv2[0] = (char *)cmd; /* full path to the script file */
785 memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
786 pid = mingw_spawnve(prog, argv2, env, 1);
789 if (waitpid(pid, &status, 0) < 0)
793 pid = 1; /* indicate that we tried but failed */
797 free_path_split(path);
801 static void mingw_execve(const char *cmd, char *const *argv, char *const *env)
803 /* check if git_command is a shell script */
804 if (!try_shell_exec(cmd, argv, (char **)env)) {
807 pid = mingw_spawnve(cmd, (const char **)argv, (char **)env, 0);
810 if (waitpid(pid, &status, 0) < 0)
816 void mingw_execvp(const char *cmd, char *const *argv)
818 char **path = get_path_split();
819 char *prog = path_lookup(cmd, path, 0);
822 mingw_execve(prog, argv, environ);
827 free_path_split(path);
830 static char **copy_environ(void)
836 env = xmalloc((i+1)*sizeof(*env));
837 for (i = 0; environ[i]; i++)
838 env[i] = xstrdup(environ[i]);
843 void free_environ(char **env)
846 for (i = 0; env[i]; i++)
851 static int lookup_env(char **env, const char *name, size_t nmln)
855 for (i = 0; env[i]; i++) {
856 if (0 == strncmp(env[i], name, nmln)
857 && '=' == env[i][nmln])
865 * If name contains '=', then sets the variable, otherwise it unsets it
867 static char **env_setenv(char **env, const char *name)
869 char *eq = strchrnul(name, '=');
870 int i = lookup_env(env, name, eq-name);
874 for (i = 0; env[i]; i++)
876 env = xrealloc(env, (i+2)*sizeof(*env));
877 env[i] = xstrdup(name);
884 env[i] = xstrdup(name);
893 * Copies global environ and adjusts variables as specified by vars.
895 char **make_augmented_environ(const char *const *vars)
897 char **env = copy_environ();
900 env = env_setenv(env, *vars++);
904 /* this is the first function to call into WS_32; initialize it */
906 struct hostent *mingw_gethostbyname(const char *host)
910 if (WSAStartup(MAKEWORD(2,2), &wsa))
911 die("unable to initialize winsock subsystem, error %d",
913 atexit((void(*)(void)) WSACleanup);
914 return gethostbyname(host);
917 int mingw_socket(int domain, int type, int protocol)
920 SOCKET s = WSASocket(domain, type, protocol, NULL, 0, 0);
921 if (s == INVALID_SOCKET) {
923 * WSAGetLastError() values are regular BSD error codes
924 * biased by WSABASEERR.
925 * However, strerror() does not know about networking
926 * specific errors, which are values beginning at 38 or so.
927 * Therefore, we choose to leave the biased error code
928 * in errno so that _if_ someone looks up the code somewhere,
929 * then it is at least the number that are usually listed.
931 errno = WSAGetLastError();
934 /* convert into a file descriptor */
935 if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
937 return error("unable to make a socket file descriptor: %s",
944 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
946 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
947 return connect(s, sa, sz);
951 int mingw_rename(const char *pold, const char *pnew)
955 static const int delay[] = { 0, 1, 10, 20, 40 };
958 * Try native rename() first to get errno right.
959 * It is based on MoveFile(), which cannot overwrite existing files.
961 if (!rename(pold, pnew))
966 if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
968 /* TODO: translate more errors */
969 gle = GetLastError();
970 if (gle == ERROR_ACCESS_DENIED &&
971 (attrs = GetFileAttributes(pnew)) != INVALID_FILE_ATTRIBUTES) {
972 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
976 if ((attrs & FILE_ATTRIBUTE_READONLY) &&
977 SetFileAttributes(pnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
978 if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
980 gle = GetLastError();
981 /* revert file attributes on failure */
982 SetFileAttributes(pnew, attrs);
985 if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
987 * We assume that some other process had the source or
988 * destination file open at the wrong moment and retry.
989 * In order to give the other process a higher chance to
990 * complete its operation, we give up our time slice now.
991 * If we have to retry again, we do sleep a bit.
1001 struct passwd *getpwuid(int uid)
1003 static char user_name[100];
1004 static struct passwd p;
1006 DWORD len = sizeof(user_name);
1007 if (!GetUserName(user_name, &len))
1009 p.pw_name = user_name;
1010 p.pw_gecos = "unknown";
1015 static HANDLE timer_event;
1016 static HANDLE timer_thread;
1017 static int timer_interval;
1018 static int one_shot;
1019 static sig_handler_t timer_fn = SIG_DFL;
1021 /* The timer works like this:
1022 * The thread, ticktack(), is a trivial routine that most of the time
1023 * only waits to receive the signal to terminate. The main thread tells
1024 * the thread to terminate by setting the timer_event to the signalled
1026 * But ticktack() interrupts the wait state after the timer's interval
1027 * length to call the signal handler.
1030 static unsigned __stdcall ticktack(void *dummy)
1032 while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
1033 if (timer_fn == SIG_DFL)
1035 if (timer_fn != SIG_IGN)
1043 static int start_timer_thread(void)
1045 timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1047 timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
1049 return errno = ENOMEM,
1050 error("cannot start timer thread");
1052 return errno = ENOMEM,
1053 error("cannot allocate resources for timer");
1057 static void stop_timer_thread(void)
1060 SetEvent(timer_event); /* tell thread to terminate */
1062 int rc = WaitForSingleObject(timer_thread, 1000);
1063 if (rc == WAIT_TIMEOUT)
1064 error("timer thread did not terminate timely");
1065 else if (rc != WAIT_OBJECT_0)
1066 error("waiting for timer thread failed: %lu",
1068 CloseHandle(timer_thread);
1071 CloseHandle(timer_event);
1073 timer_thread = NULL;
1076 static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2)
1078 return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec;
1081 int setitimer(int type, struct itimerval *in, struct itimerval *out)
1083 static const struct timeval zero;
1084 static int atexit_done;
1087 return errno = EINVAL,
1088 error("setitimer param 3 != NULL not implemented");
1089 if (!is_timeval_eq(&in->it_interval, &zero) &&
1090 !is_timeval_eq(&in->it_interval, &in->it_value))
1091 return errno = EINVAL,
1092 error("setitimer: it_interval must be zero or eq it_value");
1095 stop_timer_thread();
1097 if (is_timeval_eq(&in->it_value, &zero) &&
1098 is_timeval_eq(&in->it_interval, &zero))
1101 timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000;
1102 one_shot = is_timeval_eq(&in->it_interval, &zero);
1104 atexit(stop_timer_thread);
1107 return start_timer_thread();
1110 int sigaction(int sig, struct sigaction *in, struct sigaction *out)
1113 return errno = EINVAL,
1114 error("sigaction only implemented for SIGALRM");
1116 return errno = EINVAL,
1117 error("sigaction: param 3 != NULL not implemented");
1119 timer_fn = in->sa_handler;
1124 sig_handler_t mingw_signal(int sig, sig_handler_t handler)
1126 sig_handler_t old = timer_fn;
1128 return signal(sig, handler);
1133 static const char *make_backslash_path(const char *path)
1135 static char buf[PATH_MAX + 1];
1138 if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
1139 die("Too long path: %.*s", 60, path);
1141 for (c = buf; *c; c++) {
1148 void mingw_open_html(const char *unixpath)
1150 const char *htmlpath = make_backslash_path(unixpath);
1151 printf("Launching default browser to display HTML ...\n");
1152 ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
1155 int link(const char *oldpath, const char *newpath)
1157 typedef BOOL (WINAPI *T)(const char*, const char*, LPSECURITY_ATTRIBUTES);
1158 static T create_hard_link = NULL;
1159 if (!create_hard_link) {
1160 create_hard_link = (T) GetProcAddress(
1161 GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
1162 if (!create_hard_link)
1163 create_hard_link = (T)-1;
1165 if (create_hard_link == (T)-1) {
1169 if (!create_hard_link(newpath, oldpath, NULL)) {
1170 errno = err_win_to_posix(GetLastError());
1176 char *getpass(const char *prompt)
1178 struct strbuf buf = STRBUF_INIT;
1180 fputs(prompt, stderr);
1183 if (c == '\r' || c == '\n')
1185 strbuf_addch(&buf, c);
1187 fputs("\n", stderr);
1188 return strbuf_detach(&buf, NULL);
1191 #ifndef NO_MINGW_REPLACE_READDIR
1192 /* MinGW readdir implementation to avoid extra lstats for Git */
1195 struct _finddata_t dd_dta; /* disk transfer area for this dir */
1196 struct mingw_dirent dd_dir; /* Our own implementation, including d_type */
1197 long dd_handle; /* _findnext handle */
1198 int dd_stat; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
1199 char dd_name[1]; /* given path for dir with search pattern (struct is extended) */
1202 struct dirent *mingw_readdir(DIR *dir)
1204 WIN32_FIND_DATAA buf;
1206 struct mingw_DIR *mdir = (struct mingw_DIR*)dir;
1208 if (!dir->dd_handle) {
1209 errno = EBADF; /* No set_errno for mingw */
1213 if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0)
1216 handle = FindFirstFileA(dir->dd_name, &buf);
1217 lasterr = GetLastError();
1218 dir->dd_handle = (long)handle;
1219 if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) {
1220 errno = err_win_to_posix(lasterr);
1223 } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) {
1225 } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) {
1226 DWORD lasterr = GetLastError();
1227 FindClose((HANDLE)dir->dd_handle);
1228 dir->dd_handle = (long)INVALID_HANDLE_VALUE;
1229 /* POSIX says you shouldn't set errno when readdir can't
1230 find any more files; so, if another error we leave it set. */
1231 if (lasterr != ERROR_NO_MORE_FILES)
1232 errno = err_win_to_posix(lasterr);
1236 /* We get here if `buf' contains valid data. */
1237 strcpy(dir->dd_dir.d_name, buf.cFileName);
1240 /* Set file type, based on WIN32_FIND_DATA */
1241 mdir->dd_dir.d_type = 0;
1242 if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1243 mdir->dd_dir.d_type |= DT_DIR;
1245 mdir->dd_dir.d_type |= DT_REG;
1247 return (struct dirent*)&dir->dd_dir;
1249 #endif // !NO_MINGW_REPLACE_READDIR