1 #include "../git-compat-util.h"
6 unsigned int _CRT_fmode = _O_BINARY;
8 static int err_win_to_posix(DWORD winerr)
12 case ERROR_ACCESS_DENIED: error = EACCES; break;
13 case ERROR_ACCOUNT_DISABLED: error = EACCES; break;
14 case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break;
15 case ERROR_ALREADY_ASSIGNED: error = EBUSY; break;
16 case ERROR_ALREADY_EXISTS: error = EEXIST; break;
17 case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break;
18 case ERROR_BAD_COMMAND: error = EIO; break;
19 case ERROR_BAD_DEVICE: error = ENODEV; break;
20 case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break;
21 case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break;
22 case ERROR_BAD_FORMAT: error = ENOEXEC; break;
23 case ERROR_BAD_LENGTH: error = EINVAL; break;
24 case ERROR_BAD_PATHNAME: error = ENOENT; break;
25 case ERROR_BAD_PIPE: error = EPIPE; break;
26 case ERROR_BAD_UNIT: error = ENODEV; break;
27 case ERROR_BAD_USERNAME: error = EINVAL; break;
28 case ERROR_BROKEN_PIPE: error = EPIPE; break;
29 case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break;
30 case ERROR_BUSY: error = EBUSY; break;
31 case ERROR_BUSY_DRIVE: error = EBUSY; break;
32 case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break;
33 case ERROR_CANNOT_MAKE: error = EACCES; break;
34 case ERROR_CANTOPEN: error = EIO; break;
35 case ERROR_CANTREAD: error = EIO; break;
36 case ERROR_CANTWRITE: error = EIO; break;
37 case ERROR_CRC: error = EIO; break;
38 case ERROR_CURRENT_DIRECTORY: error = EACCES; break;
39 case ERROR_DEVICE_IN_USE: error = EBUSY; break;
40 case ERROR_DEV_NOT_EXIST: error = ENODEV; break;
41 case ERROR_DIRECTORY: error = EINVAL; break;
42 case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break;
43 case ERROR_DISK_CHANGE: error = EIO; break;
44 case ERROR_DISK_FULL: error = ENOSPC; break;
45 case ERROR_DRIVE_LOCKED: error = EBUSY; break;
46 case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break;
47 case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break;
48 case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break;
49 case ERROR_FILE_EXISTS: error = EEXIST; break;
50 case ERROR_FILE_INVALID: error = ENODEV; break;
51 case ERROR_FILE_NOT_FOUND: error = ENOENT; break;
52 case ERROR_GEN_FAILURE: error = EIO; break;
53 case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break;
54 case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break;
55 case ERROR_INVALID_ACCESS: error = EACCES; break;
56 case ERROR_INVALID_ADDRESS: error = EFAULT; break;
57 case ERROR_INVALID_BLOCK: error = EFAULT; break;
58 case ERROR_INVALID_DATA: error = EINVAL; break;
59 case ERROR_INVALID_DRIVE: error = ENODEV; break;
60 case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break;
61 case ERROR_INVALID_FLAGS: error = EINVAL; break;
62 case ERROR_INVALID_FUNCTION: error = ENOSYS; break;
63 case ERROR_INVALID_HANDLE: error = EBADF; break;
64 case ERROR_INVALID_LOGON_HOURS: error = EACCES; break;
65 case ERROR_INVALID_NAME: error = EINVAL; break;
66 case ERROR_INVALID_OWNER: error = EINVAL; break;
67 case ERROR_INVALID_PARAMETER: error = EINVAL; break;
68 case ERROR_INVALID_PASSWORD: error = EPERM; break;
69 case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break;
70 case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break;
71 case ERROR_INVALID_TARGET_HANDLE: error = EIO; break;
72 case ERROR_INVALID_WORKSTATION: error = EACCES; break;
73 case ERROR_IO_DEVICE: error = EIO; break;
74 case ERROR_IO_INCOMPLETE: error = EINTR; break;
75 case ERROR_LOCKED: error = EBUSY; break;
76 case ERROR_LOCK_VIOLATION: error = EACCES; break;
77 case ERROR_LOGON_FAILURE: error = EACCES; break;
78 case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break;
79 case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break;
80 case ERROR_MORE_DATA: error = EPIPE; break;
81 case ERROR_NEGATIVE_SEEK: error = ESPIPE; break;
82 case ERROR_NOACCESS: error = EFAULT; break;
83 case ERROR_NONE_MAPPED: error = EINVAL; break;
84 case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break;
85 case ERROR_NOT_READY: error = EAGAIN; break;
86 case ERROR_NOT_SAME_DEVICE: error = EXDEV; break;
87 case ERROR_NO_DATA: error = EPIPE; break;
88 case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break;
89 case ERROR_NO_PROC_SLOTS: error = EAGAIN; break;
90 case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break;
91 case ERROR_OPEN_FAILED: error = EIO; break;
92 case ERROR_OPEN_FILES: error = EBUSY; break;
93 case ERROR_OPERATION_ABORTED: error = EINTR; break;
94 case ERROR_OUTOFMEMORY: error = ENOMEM; break;
95 case ERROR_PASSWORD_EXPIRED: error = EACCES; break;
96 case ERROR_PATH_BUSY: error = EBUSY; break;
97 case ERROR_PATH_NOT_FOUND: error = ENOENT; break;
98 case ERROR_PIPE_BUSY: error = EBUSY; break;
99 case ERROR_PIPE_CONNECTED: error = EPIPE; break;
100 case ERROR_PIPE_LISTENING: error = EPIPE; break;
101 case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break;
102 case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break;
103 case ERROR_READ_FAULT: error = EIO; break;
104 case ERROR_SEEK: error = EIO; break;
105 case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break;
106 case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break;
107 case ERROR_SHARING_VIOLATION: error = EACCES; break;
108 case ERROR_STACK_OVERFLOW: error = ENOMEM; break;
109 case ERROR_SWAPERROR: error = ENOENT; break;
110 case ERROR_TOO_MANY_MODULES: error = EMFILE; break;
111 case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break;
112 case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break;
113 case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break;
114 case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break;
115 case ERROR_WRITE_FAULT: error = EIO; break;
116 case ERROR_WRITE_PROTECT: error = EROFS; break;
122 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"))
132 int fd = open(filename, oflags, mode);
133 if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) {
134 DWORD attrs = GetFileAttributes(filename);
135 if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
141 static inline time_t filetime_to_time_t(const FILETIME *ft)
143 long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
144 winTime -= 116444736000000000LL; /* Windows to Unix Epoch conversion */
145 winTime /= 10000000; /* Nano to seconds resolution */
146 return (time_t)winTime;
149 /* We keep the do_lstat code in a separate function to avoid recursion.
150 * When a path ends with a slash, the stat will fail with ENOENT. In
151 * this case, we strip the trailing slashes and stat again.
153 static int do_lstat(const char *file_name, struct stat *buf)
155 WIN32_FILE_ATTRIBUTE_DATA fdata;
157 if (!(errno = get_file_attr(file_name, &fdata))) {
162 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
163 buf->st_size = fdata.nFileSizeLow |
164 (((off_t)fdata.nFileSizeHigh)<<32);
165 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
166 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
167 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
168 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
174 /* We provide our own lstat/fstat functions, since the provided
175 * lstat/fstat functions are so slow. These stat functions are
176 * tailored for Git's usage (read: fast), and are not meant to be
177 * complete. Note that Git stat()s are redirected to mingw_lstat()
178 * too, since Windows doesn't really handle symlinks that well.
180 int mingw_lstat(const char *file_name, struct stat *buf)
183 static char alt_name[PATH_MAX];
185 if (!do_lstat(file_name, buf))
188 /* if file_name ended in a '/', Windows returned ENOENT;
189 * try again without trailing slashes
194 namelen = strlen(file_name);
195 if (namelen && file_name[namelen-1] != '/')
197 while (namelen && file_name[namelen-1] == '/')
199 if (!namelen || namelen >= PATH_MAX)
202 memcpy(alt_name, file_name, namelen);
203 alt_name[namelen] = 0;
204 return do_lstat(alt_name, buf);
208 int mingw_fstat(int fd, struct stat *buf)
210 HANDLE fh = (HANDLE)_get_osfhandle(fd);
211 BY_HANDLE_FILE_INFORMATION fdata;
213 if (fh == INVALID_HANDLE_VALUE) {
217 /* direct non-file handles to MS's fstat() */
218 if (GetFileType(fh) != FILE_TYPE_DISK)
219 return _fstati64(fd, buf);
221 if (GetFileInformationByHandle(fh, &fdata)) {
226 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
227 buf->st_size = fdata.nFileSizeLow |
228 (((off_t)fdata.nFileSizeHigh)<<32);
229 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
230 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
231 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
232 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
239 static inline void time_t_to_filetime(time_t t, FILETIME *ft)
241 long long winTime = t * 10000000LL + 116444736000000000LL;
242 ft->dwLowDateTime = winTime;
243 ft->dwHighDateTime = winTime >> 32;
246 int mingw_utime (const char *file_name, const struct utimbuf *times)
251 /* must have write permission */
252 if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
255 time_t_to_filetime(times->modtime, &mft);
256 time_t_to_filetime(times->actime, &aft);
257 if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
266 unsigned int sleep (unsigned int seconds)
272 int mkstemp(char *template)
274 char *filename = mktemp(template);
275 if (filename == NULL)
277 return open(filename, O_RDWR | O_CREAT, 0600);
280 int gettimeofday(struct timeval *tv, void *tz)
285 tm.tm_year = st.wYear-1900;
286 tm.tm_mon = st.wMonth-1;
287 tm.tm_mday = st.wDay;
288 tm.tm_hour = st.wHour;
289 tm.tm_min = st.wMinute;
290 tm.tm_sec = st.wSecond;
291 tv->tv_sec = tm_to_time_t(&tm);
294 tv->tv_usec = st.wMilliseconds*1000;
298 int pipe(int filedes[2])
303 if (_pipe(filedes, 8192, 0) < 0)
306 parent = GetCurrentProcess();
308 if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[0]),
309 parent, &h[0], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
314 if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[1]),
315 parent, &h[1], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
321 fd = _open_osfhandle((int)h[0], O_NOINHERIT);
331 fd = _open_osfhandle((int)h[1], O_NOINHERIT);
343 int poll(struct pollfd *ufds, unsigned int nfds, int timeout)
352 return errno = EINVAL, error("poll timeout not supported");
355 /* When there is only one fd to wait for, then we pretend that
356 * input is available and let the actual wait happen when the
357 * caller invokes read().
360 if (!(ufds[0].events & POLLIN))
361 return errno = EINVAL, error("POLLIN not set");
362 ufds[0].revents = POLLIN;
368 for (i = 0; i < nfds; i++) {
370 HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd);
371 if (h == INVALID_HANDLE_VALUE)
372 return -1; /* errno was set */
374 if (!(ufds[i].events & POLLIN))
375 return errno = EINVAL, error("POLLIN not set");
377 /* this emulation works only for pipes */
378 if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) {
379 int err = GetLastError();
380 if (err == ERROR_BROKEN_PIPE) {
381 ufds[i].revents = POLLHUP;
385 return error("PeekNamedPipe failed,"
386 " GetLastError: %u", err);
389 ufds[i].revents = POLLIN;
395 /* The only times that we spin here is when the process
396 * that is connected through the pipes is waiting for
397 * its own input data to become available. But since
398 * the process (pack-objects) is itself CPU intensive,
399 * it will happily pick up the time slice that we are
400 * relinquishing here.
408 struct tm *gmtime_r(const time_t *timep, struct tm *result)
410 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
411 memcpy(result, gmtime(timep), sizeof(struct tm));
415 struct tm *localtime_r(const time_t *timep, struct tm *result)
417 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
418 memcpy(result, localtime(timep), sizeof(struct tm));
423 char *mingw_getcwd(char *pointer, int len)
426 char *ret = getcwd(pointer, len);
429 for (i = 0; pointer[i]; i++)
430 if (pointer[i] == '\\')
436 char *mingw_getenv(const char *name)
438 char *result = getenv(name);
439 if (!result && !strcmp(name, "TMPDIR")) {
440 /* on Windows it is TMP and TEMP */
441 result = getenv("TMP");
443 result = getenv("TEMP");
449 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
450 * (Parsing C++ Command-Line Arguments)
452 static const char *quote_arg(const char *arg)
454 /* count chars to quote */
456 int force_quotes = 0;
459 if (!*p) force_quotes = 1;
461 if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'')
465 else if (*p == '\\') {
479 if (!force_quotes && n == 0)
482 /* insert \ where necessary */
483 d = q = xmalloc(len+n+3);
488 else if (*arg == '\\') {
490 while (*arg == '\\') {
507 static const char *parse_interpreter(const char *cmd)
509 static char buf[100];
513 /* don't even try a .exe */
515 if (n >= 4 && !strcasecmp(cmd+n-4, ".exe"))
518 fd = open(cmd, O_RDONLY);
521 n = read(fd, buf, sizeof(buf)-1);
523 if (n < 4) /* at least '#!/x' and not error */
526 if (buf[0] != '#' || buf[1] != '!')
529 p = buf + strcspn(buf, "\r\n");
534 if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\')))
537 if ((opt = strchr(p+1, ' ')))
543 * Splits the PATH into parts.
545 static char **get_path_split(void)
547 char *p, **path, *envpath = getenv("PATH");
550 if (!envpath || !*envpath)
553 envpath = xstrdup(envpath);
559 if (*dir) { /* not earlier, catches series of ; */
566 path = xmalloc((n+1)*sizeof(char *));
571 path[i++] = xstrdup(p);
581 static void free_path_split(char **path)
593 * exe_only means that we only want to detect .exe files, but not scripts
594 * (which do not have an extension)
596 static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only)
599 snprintf(path, sizeof(path), "%s/%s.exe", dir, cmd);
601 if (!isexe && access(path, F_OK) == 0)
602 return xstrdup(path);
603 path[strlen(path)-4] = '\0';
604 if ((!exe_only || isexe) && access(path, F_OK) == 0)
605 if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY))
606 return xstrdup(path);
611 * Determines the absolute path of cmd using the the split path in path.
612 * If cmd contains a slash or backslash, no lookup is performed.
614 static char *path_lookup(const char *cmd, char **path, int exe_only)
617 int len = strlen(cmd);
618 int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe");
620 if (strchr(cmd, '/') || strchr(cmd, '\\'))
623 while (!prog && *path)
624 prog = lookup_prog(*path++, cmd, isexe, exe_only);
629 static int env_compare(const void *a, const void *b)
633 return strcasecmp(*ea, *eb);
636 static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
640 PROCESS_INFORMATION pi;
641 struct strbuf envblk, args;
645 /* Determine whether or not we are associated to a console */
646 HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
647 FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
648 FILE_ATTRIBUTE_NORMAL, NULL);
649 if (cons == INVALID_HANDLE_VALUE) {
650 /* There is no console associated with this process.
651 * Since the child is a console process, Windows
652 * would normally create a console window. But
653 * since we'll be redirecting std streams, we do
654 * not need the console.
655 * It is necessary to use DETACHED_PROCESS
656 * instead of CREATE_NO_WINDOW to make ssh
657 * recognize that it has no console.
659 flags = DETACHED_PROCESS;
661 /* There is already a console. If we specified
662 * DETACHED_PROCESS here, too, Windows would
663 * disassociate the child from the console.
664 * The same is true for CREATE_NO_WINDOW.
670 memset(&si, 0, sizeof(si));
672 si.dwFlags = STARTF_USESTDHANDLES;
673 si.hStdInput = (HANDLE) _get_osfhandle(0);
674 si.hStdOutput = (HANDLE) _get_osfhandle(1);
675 si.hStdError = (HANDLE) _get_osfhandle(2);
677 /* concatenate argv, quoting args as we go */
678 strbuf_init(&args, 0);
680 char *quoted = (char *)quote_arg(cmd);
681 strbuf_addstr(&args, quoted);
685 for (; *argv; argv++) {
686 char *quoted = (char *)quote_arg(*argv);
688 strbuf_addch(&args, ' ');
689 strbuf_addstr(&args, quoted);
696 char **e, **sorted_env;
698 for (e = env; *e; e++)
701 /* environment must be sorted */
702 sorted_env = xmalloc(sizeof(*sorted_env) * (count + 1));
703 memcpy(sorted_env, env, sizeof(*sorted_env) * (count + 1));
704 qsort(sorted_env, count, sizeof(*sorted_env), env_compare);
706 strbuf_init(&envblk, 0);
707 for (e = sorted_env; *e; e++) {
708 strbuf_addstr(&envblk, *e);
709 strbuf_addch(&envblk, '\0');
714 memset(&pi, 0, sizeof(pi));
715 ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags,
716 env ? envblk.buf : NULL, NULL, &si, &pi);
719 strbuf_release(&envblk);
720 strbuf_release(&args);
726 CloseHandle(pi.hThread);
727 return (pid_t)pi.hProcess;
730 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
733 char **path = get_path_split();
734 char *prog = path_lookup(cmd, path, 0);
741 const char *interpr = parse_interpreter(prog);
744 const char *argv0 = argv[0];
745 char *iprog = path_lookup(interpr, path, 1);
752 pid = mingw_spawnve(iprog, argv, env, 1);
758 pid = mingw_spawnve(prog, argv, env, 0);
761 free_path_split(path);
765 static int try_shell_exec(const char *cmd, char *const *argv, char **env)
767 const char *interpr = parse_interpreter(cmd);
774 path = get_path_split();
775 prog = path_lookup(interpr, path, 1);
779 while (argv[argc]) argc++;
780 argv2 = xmalloc(sizeof(*argv) * (argc+1));
781 argv2[0] = (char *)cmd; /* full path to the script file */
782 memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
783 pid = mingw_spawnve(prog, argv2, env, 1);
786 if (waitpid(pid, &status, 0) < 0)
790 pid = 1; /* indicate that we tried but failed */
794 free_path_split(path);
798 static void mingw_execve(const char *cmd, char *const *argv, char *const *env)
800 /* check if git_command is a shell script */
801 if (!try_shell_exec(cmd, argv, (char **)env)) {
804 pid = mingw_spawnve(cmd, (const char **)argv, (char **)env, 0);
807 if (waitpid(pid, &status, 0) < 0)
813 void mingw_execvp(const char *cmd, char *const *argv)
815 char **path = get_path_split();
816 char *prog = path_lookup(cmd, path, 0);
819 mingw_execve(prog, argv, environ);
824 free_path_split(path);
827 char **copy_environ()
833 env = xmalloc((i+1)*sizeof(*env));
834 for (i = 0; environ[i]; i++)
835 env[i] = xstrdup(environ[i]);
840 void free_environ(char **env)
843 for (i = 0; env[i]; i++)
848 static int lookup_env(char **env, const char *name, size_t nmln)
852 for (i = 0; env[i]; i++) {
853 if (0 == strncmp(env[i], name, nmln)
854 && '=' == env[i][nmln])
862 * If name contains '=', then sets the variable, otherwise it unsets it
864 char **env_setenv(char **env, const char *name)
866 char *eq = strchrnul(name, '=');
867 int i = lookup_env(env, name, eq-name);
871 for (i = 0; env[i]; i++)
873 env = xrealloc(env, (i+2)*sizeof(*env));
874 env[i] = xstrdup(name);
881 env[i] = xstrdup(name);
889 /* this is the first function to call into WS_32; initialize it */
891 struct hostent *mingw_gethostbyname(const char *host)
895 if (WSAStartup(MAKEWORD(2,2), &wsa))
896 die("unable to initialize winsock subsystem, error %d",
898 atexit((void(*)(void)) WSACleanup);
899 return gethostbyname(host);
902 int mingw_socket(int domain, int type, int protocol)
905 SOCKET s = WSASocket(domain, type, protocol, NULL, 0, 0);
906 if (s == INVALID_SOCKET) {
908 * WSAGetLastError() values are regular BSD error codes
909 * biased by WSABASEERR.
910 * However, strerror() does not know about networking
911 * specific errors, which are values beginning at 38 or so.
912 * Therefore, we choose to leave the biased error code
913 * in errno so that _if_ someone looks up the code somewhere,
914 * then it is at least the number that are usually listed.
916 errno = WSAGetLastError();
919 /* convert into a file descriptor */
920 if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
922 return error("unable to make a socket file descriptor: %s",
929 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
931 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
932 return connect(s, sa, sz);
936 int mingw_rename(const char *pold, const char *pnew)
940 static const int delay[] = { 0, 1, 10, 20, 40 };
943 * Try native rename() first to get errno right.
944 * It is based on MoveFile(), which cannot overwrite existing files.
946 if (!rename(pold, pnew))
951 if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
953 /* TODO: translate more errors */
954 gle = GetLastError();
955 if (gle == ERROR_ACCESS_DENIED &&
956 (attrs = GetFileAttributes(pnew)) != INVALID_FILE_ATTRIBUTES) {
957 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
961 if ((attrs & FILE_ATTRIBUTE_READONLY) &&
962 SetFileAttributes(pnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
963 if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
965 gle = GetLastError();
966 /* revert file attributes on failure */
967 SetFileAttributes(pnew, attrs);
970 if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
972 * We assume that some other process had the source or
973 * destination file open at the wrong moment and retry.
974 * In order to give the other process a higher chance to
975 * complete its operation, we give up our time slice now.
976 * If we have to retry again, we do sleep a bit.
986 struct passwd *getpwuid(int uid)
988 static char user_name[100];
989 static struct passwd p;
991 DWORD len = sizeof(user_name);
992 if (!GetUserName(user_name, &len))
994 p.pw_name = user_name;
995 p.pw_gecos = "unknown";
1000 static HANDLE timer_event;
1001 static HANDLE timer_thread;
1002 static int timer_interval;
1003 static int one_shot;
1004 static sig_handler_t timer_fn = SIG_DFL;
1006 /* The timer works like this:
1007 * The thread, ticktack(), is a trivial routine that most of the time
1008 * only waits to receive the signal to terminate. The main thread tells
1009 * the thread to terminate by setting the timer_event to the signalled
1011 * But ticktack() interrupts the wait state after the timer's interval
1012 * length to call the signal handler.
1015 static __stdcall unsigned ticktack(void *dummy)
1017 while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
1018 if (timer_fn == SIG_DFL)
1020 if (timer_fn != SIG_IGN)
1028 static int start_timer_thread(void)
1030 timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1032 timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
1034 return errno = ENOMEM,
1035 error("cannot start timer thread");
1037 return errno = ENOMEM,
1038 error("cannot allocate resources for timer");
1042 static void stop_timer_thread(void)
1045 SetEvent(timer_event); /* tell thread to terminate */
1047 int rc = WaitForSingleObject(timer_thread, 1000);
1048 if (rc == WAIT_TIMEOUT)
1049 error("timer thread did not terminate timely");
1050 else if (rc != WAIT_OBJECT_0)
1051 error("waiting for timer thread failed: %lu",
1053 CloseHandle(timer_thread);
1056 CloseHandle(timer_event);
1058 timer_thread = NULL;
1061 static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2)
1063 return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec;
1066 int setitimer(int type, struct itimerval *in, struct itimerval *out)
1068 static const struct timeval zero;
1069 static int atexit_done;
1072 return errno = EINVAL,
1073 error("setitimer param 3 != NULL not implemented");
1074 if (!is_timeval_eq(&in->it_interval, &zero) &&
1075 !is_timeval_eq(&in->it_interval, &in->it_value))
1076 return errno = EINVAL,
1077 error("setitimer: it_interval must be zero or eq it_value");
1080 stop_timer_thread();
1082 if (is_timeval_eq(&in->it_value, &zero) &&
1083 is_timeval_eq(&in->it_interval, &zero))
1086 timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000;
1087 one_shot = is_timeval_eq(&in->it_interval, &zero);
1089 atexit(stop_timer_thread);
1092 return start_timer_thread();
1095 int sigaction(int sig, struct sigaction *in, struct sigaction *out)
1098 return errno = EINVAL,
1099 error("sigaction only implemented for SIGALRM");
1101 return errno = EINVAL,
1102 error("sigaction: param 3 != NULL not implemented");
1104 timer_fn = in->sa_handler;
1109 sig_handler_t mingw_signal(int sig, sig_handler_t handler)
1112 return signal(sig, handler);
1113 sig_handler_t old = timer_fn;
1118 static const char *make_backslash_path(const char *path)
1120 static char buf[PATH_MAX + 1];
1123 if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
1124 die("Too long path: %.*s", 60, path);
1126 for (c = buf; *c; c++) {
1133 void mingw_open_html(const char *unixpath)
1135 const char *htmlpath = make_backslash_path(unixpath);
1136 printf("Launching default browser to display HTML ...\n");
1137 ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
1140 int link(const char *oldpath, const char *newpath)
1142 typedef BOOL WINAPI (*T)(const char*, const char*, LPSECURITY_ATTRIBUTES);
1143 static T create_hard_link = NULL;
1144 if (!create_hard_link) {
1145 create_hard_link = (T) GetProcAddress(
1146 GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
1147 if (!create_hard_link)
1148 create_hard_link = (T)-1;
1150 if (create_hard_link == (T)-1) {
1154 if (!create_hard_link(newpath, oldpath, NULL)) {
1155 errno = err_win_to_posix(GetLastError());
1161 char *getpass(const char *prompt)
1163 struct strbuf buf = STRBUF_INIT;
1165 fputs(prompt, stderr);
1168 if (c == '\r' || c == '\n')
1170 strbuf_addch(&buf, c);
1172 fputs("\n", stderr);
1173 return strbuf_detach(&buf, NULL);
1176 #ifndef NO_MINGW_REPLACE_READDIR
1177 /* MinGW readdir implementation to avoid extra lstats for Git */
1180 struct _finddata_t dd_dta; /* disk transfer area for this dir */
1181 struct mingw_dirent dd_dir; /* Our own implementation, including d_type */
1182 long dd_handle; /* _findnext handle */
1183 int dd_stat; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
1184 char dd_name[1]; /* given path for dir with search pattern (struct is extended) */
1187 struct dirent *mingw_readdir(DIR *dir)
1189 WIN32_FIND_DATAA buf;
1191 struct mingw_DIR *mdir = (struct mingw_DIR*)dir;
1193 if (!dir->dd_handle) {
1194 errno = EBADF; /* No set_errno for mingw */
1198 if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0)
1200 handle = FindFirstFileA(dir->dd_name, &buf);
1201 DWORD lasterr = GetLastError();
1202 dir->dd_handle = (long)handle;
1203 if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) {
1204 errno = err_win_to_posix(lasterr);
1207 } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) {
1209 } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) {
1210 DWORD lasterr = GetLastError();
1211 FindClose((HANDLE)dir->dd_handle);
1212 dir->dd_handle = (long)INVALID_HANDLE_VALUE;
1213 /* POSIX says you shouldn't set errno when readdir can't
1214 find any more files; so, if another error we leave it set. */
1215 if (lasterr != ERROR_NO_MORE_FILES)
1216 errno = err_win_to_posix(lasterr);
1220 /* We get here if `buf' contains valid data. */
1221 strcpy(dir->dd_dir.d_name, buf.cFileName);
1224 /* Set file type, based on WIN32_FIND_DATA */
1225 mdir->dd_dir.d_type = 0;
1226 if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1227 mdir->dd_dir.d_type |= DT_DIR;
1229 mdir->dd_dir.d_type |= DT_REG;
1231 return (struct dirent*)&dir->dd_dir;
1233 #endif // !NO_MINGW_REPLACE_READDIR