1 #include "../git-compat-util.h"
5 unsigned int _CRT_fmode = _O_BINARY;
7 static int err_win_to_posix(DWORD winerr)
11 case ERROR_ACCESS_DENIED: error = EACCES; break;
12 case ERROR_ACCOUNT_DISABLED: error = EACCES; break;
13 case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break;
14 case ERROR_ALREADY_ASSIGNED: error = EBUSY; break;
15 case ERROR_ALREADY_EXISTS: error = EEXIST; break;
16 case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break;
17 case ERROR_BAD_COMMAND: error = EIO; break;
18 case ERROR_BAD_DEVICE: error = ENODEV; break;
19 case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break;
20 case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break;
21 case ERROR_BAD_FORMAT: error = ENOEXEC; break;
22 case ERROR_BAD_LENGTH: error = EINVAL; break;
23 case ERROR_BAD_PATHNAME: error = ENOENT; break;
24 case ERROR_BAD_PIPE: error = EPIPE; break;
25 case ERROR_BAD_UNIT: error = ENODEV; break;
26 case ERROR_BAD_USERNAME: error = EINVAL; break;
27 case ERROR_BROKEN_PIPE: error = EPIPE; break;
28 case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break;
29 case ERROR_BUSY: error = EBUSY; break;
30 case ERROR_BUSY_DRIVE: error = EBUSY; break;
31 case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break;
32 case ERROR_CANNOT_MAKE: error = EACCES; break;
33 case ERROR_CANTOPEN: error = EIO; break;
34 case ERROR_CANTREAD: error = EIO; break;
35 case ERROR_CANTWRITE: error = EIO; break;
36 case ERROR_CRC: error = EIO; break;
37 case ERROR_CURRENT_DIRECTORY: error = EACCES; break;
38 case ERROR_DEVICE_IN_USE: error = EBUSY; break;
39 case ERROR_DEV_NOT_EXIST: error = ENODEV; break;
40 case ERROR_DIRECTORY: error = EINVAL; break;
41 case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break;
42 case ERROR_DISK_CHANGE: error = EIO; break;
43 case ERROR_DISK_FULL: error = ENOSPC; break;
44 case ERROR_DRIVE_LOCKED: error = EBUSY; break;
45 case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break;
46 case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break;
47 case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break;
48 case ERROR_FILE_EXISTS: error = EEXIST; break;
49 case ERROR_FILE_INVALID: error = ENODEV; break;
50 case ERROR_FILE_NOT_FOUND: error = ENOENT; break;
51 case ERROR_GEN_FAILURE: error = EIO; break;
52 case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break;
53 case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break;
54 case ERROR_INVALID_ACCESS: error = EACCES; break;
55 case ERROR_INVALID_ADDRESS: error = EFAULT; break;
56 case ERROR_INVALID_BLOCK: error = EFAULT; break;
57 case ERROR_INVALID_DATA: error = EINVAL; break;
58 case ERROR_INVALID_DRIVE: error = ENODEV; break;
59 case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break;
60 case ERROR_INVALID_FLAGS: error = EINVAL; break;
61 case ERROR_INVALID_FUNCTION: error = ENOSYS; break;
62 case ERROR_INVALID_HANDLE: error = EBADF; break;
63 case ERROR_INVALID_LOGON_HOURS: error = EACCES; break;
64 case ERROR_INVALID_NAME: error = EINVAL; break;
65 case ERROR_INVALID_OWNER: error = EINVAL; break;
66 case ERROR_INVALID_PARAMETER: error = EINVAL; break;
67 case ERROR_INVALID_PASSWORD: error = EPERM; break;
68 case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break;
69 case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break;
70 case ERROR_INVALID_TARGET_HANDLE: error = EIO; break;
71 case ERROR_INVALID_WORKSTATION: error = EACCES; break;
72 case ERROR_IO_DEVICE: error = EIO; break;
73 case ERROR_IO_INCOMPLETE: error = EINTR; break;
74 case ERROR_LOCKED: error = EBUSY; break;
75 case ERROR_LOCK_VIOLATION: error = EACCES; break;
76 case ERROR_LOGON_FAILURE: error = EACCES; break;
77 case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break;
78 case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break;
79 case ERROR_MORE_DATA: error = EPIPE; break;
80 case ERROR_NEGATIVE_SEEK: error = ESPIPE; break;
81 case ERROR_NOACCESS: error = EFAULT; break;
82 case ERROR_NONE_MAPPED: error = EINVAL; break;
83 case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break;
84 case ERROR_NOT_READY: error = EAGAIN; break;
85 case ERROR_NOT_SAME_DEVICE: error = EXDEV; break;
86 case ERROR_NO_DATA: error = EPIPE; break;
87 case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break;
88 case ERROR_NO_PROC_SLOTS: error = EAGAIN; break;
89 case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break;
90 case ERROR_OPEN_FAILED: error = EIO; break;
91 case ERROR_OPEN_FILES: error = EBUSY; break;
92 case ERROR_OPERATION_ABORTED: error = EINTR; break;
93 case ERROR_OUTOFMEMORY: error = ENOMEM; break;
94 case ERROR_PASSWORD_EXPIRED: error = EACCES; break;
95 case ERROR_PATH_BUSY: error = EBUSY; break;
96 case ERROR_PATH_NOT_FOUND: error = ENOENT; break;
97 case ERROR_PIPE_BUSY: error = EBUSY; break;
98 case ERROR_PIPE_CONNECTED: error = EPIPE; break;
99 case ERROR_PIPE_LISTENING: error = EPIPE; break;
100 case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break;
101 case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break;
102 case ERROR_READ_FAULT: error = EIO; break;
103 case ERROR_SEEK: error = EIO; break;
104 case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break;
105 case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break;
106 case ERROR_SHARING_VIOLATION: error = EACCES; break;
107 case ERROR_STACK_OVERFLOW: error = ENOMEM; break;
108 case ERROR_SWAPERROR: error = ENOENT; break;
109 case ERROR_TOO_MANY_MODULES: error = EMFILE; break;
110 case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break;
111 case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break;
112 case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break;
113 case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break;
114 case ERROR_WRITE_FAULT: error = EIO; break;
115 case ERROR_WRITE_PROTECT: error = EROFS; break;
121 int mingw_open (const char *filename, int oflags, ...)
125 va_start(args, oflags);
126 mode = va_arg(args, int);
129 if (!strcmp(filename, "/dev/null"))
131 int fd = open(filename, oflags, mode);
132 if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) {
133 DWORD attrs = GetFileAttributes(filename);
134 if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
140 static inline time_t filetime_to_time_t(const FILETIME *ft)
142 long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
143 winTime -= 116444736000000000LL; /* Windows to Unix Epoch conversion */
144 winTime /= 10000000; /* Nano to seconds resolution */
145 return (time_t)winTime;
148 /* We keep the do_lstat code in a separate function to avoid recursion.
149 * When a path ends with a slash, the stat will fail with ENOENT. In
150 * this case, we strip the trailing slashes and stat again.
152 static int do_lstat(const char *file_name, struct stat *buf)
154 WIN32_FILE_ATTRIBUTE_DATA fdata;
156 if (!(errno = get_file_attr(file_name, &fdata))) {
161 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
162 buf->st_size = fdata.nFileSizeLow |
163 (((off_t)fdata.nFileSizeHigh)<<32);
164 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
165 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
166 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
167 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
173 /* We provide our own lstat/fstat functions, since the provided
174 * lstat/fstat functions are so slow. These stat functions are
175 * tailored for Git's usage (read: fast), and are not meant to be
176 * complete. Note that Git stat()s are redirected to mingw_lstat()
177 * too, since Windows doesn't really handle symlinks that well.
179 int mingw_lstat(const char *file_name, struct stat *buf)
182 static char alt_name[PATH_MAX];
184 if (!do_lstat(file_name, buf))
187 /* if file_name ended in a '/', Windows returned ENOENT;
188 * try again without trailing slashes
193 namelen = strlen(file_name);
194 if (namelen && file_name[namelen-1] != '/')
196 while (namelen && file_name[namelen-1] == '/')
198 if (!namelen || namelen >= PATH_MAX)
201 memcpy(alt_name, file_name, namelen);
202 alt_name[namelen] = 0;
203 return do_lstat(alt_name, buf);
207 int mingw_fstat(int fd, struct stat *buf)
209 HANDLE fh = (HANDLE)_get_osfhandle(fd);
210 BY_HANDLE_FILE_INFORMATION fdata;
212 if (fh == INVALID_HANDLE_VALUE) {
216 /* direct non-file handles to MS's fstat() */
217 if (GetFileType(fh) != FILE_TYPE_DISK)
218 return _fstati64(fd, buf);
220 if (GetFileInformationByHandle(fh, &fdata)) {
225 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
226 buf->st_size = fdata.nFileSizeLow |
227 (((off_t)fdata.nFileSizeHigh)<<32);
228 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
229 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
230 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
231 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
238 static inline void time_t_to_filetime(time_t t, FILETIME *ft)
240 long long winTime = t * 10000000LL + 116444736000000000LL;
241 ft->dwLowDateTime = winTime;
242 ft->dwHighDateTime = winTime >> 32;
245 int mingw_utime (const char *file_name, const struct utimbuf *times)
250 /* must have write permission */
251 if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
254 time_t_to_filetime(times->modtime, &mft);
255 time_t_to_filetime(times->actime, &aft);
256 if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
265 unsigned int sleep (unsigned int seconds)
271 int mkstemp(char *template)
273 char *filename = mktemp(template);
274 if (filename == NULL)
276 return open(filename, O_RDWR | O_CREAT, 0600);
279 int gettimeofday(struct timeval *tv, void *tz)
284 tm.tm_year = st.wYear-1900;
285 tm.tm_mon = st.wMonth-1;
286 tm.tm_mday = st.wDay;
287 tm.tm_hour = st.wHour;
288 tm.tm_min = st.wMinute;
289 tm.tm_sec = st.wSecond;
290 tv->tv_sec = tm_to_time_t(&tm);
293 tv->tv_usec = st.wMilliseconds*1000;
297 int pipe(int filedes[2])
302 if (_pipe(filedes, 8192, 0) < 0)
305 parent = GetCurrentProcess();
307 if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[0]),
308 parent, &h[0], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
313 if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[1]),
314 parent, &h[1], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
320 fd = _open_osfhandle((int)h[0], O_NOINHERIT);
330 fd = _open_osfhandle((int)h[1], O_NOINHERIT);
342 int poll(struct pollfd *ufds, unsigned int nfds, int timeout)
351 return errno = EINVAL, error("poll timeout not supported");
354 /* When there is only one fd to wait for, then we pretend that
355 * input is available and let the actual wait happen when the
356 * caller invokes read().
359 if (!(ufds[0].events & POLLIN))
360 return errno = EINVAL, error("POLLIN not set");
361 ufds[0].revents = POLLIN;
367 for (i = 0; i < nfds; i++) {
369 HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd);
370 if (h == INVALID_HANDLE_VALUE)
371 return -1; /* errno was set */
373 if (!(ufds[i].events & POLLIN))
374 return errno = EINVAL, error("POLLIN not set");
376 /* this emulation works only for pipes */
377 if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) {
378 int err = GetLastError();
379 if (err == ERROR_BROKEN_PIPE) {
380 ufds[i].revents = POLLHUP;
384 return error("PeekNamedPipe failed,"
385 " GetLastError: %u", err);
388 ufds[i].revents = POLLIN;
394 /* The only times that we spin here is when the process
395 * that is connected through the pipes is waiting for
396 * its own input data to become available. But since
397 * the process (pack-objects) is itself CPU intensive,
398 * it will happily pick up the time slice that we are
399 * relinguishing here.
407 struct tm *gmtime_r(const time_t *timep, struct tm *result)
409 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
410 memcpy(result, gmtime(timep), sizeof(struct tm));
414 struct tm *localtime_r(const time_t *timep, struct tm *result)
416 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
417 memcpy(result, localtime(timep), sizeof(struct tm));
422 char *mingw_getcwd(char *pointer, int len)
425 char *ret = getcwd(pointer, len);
428 for (i = 0; pointer[i]; i++)
429 if (pointer[i] == '\\')
435 char *mingw_getenv(const char *name)
437 char *result = getenv(name);
438 if (!result && !strcmp(name, "TMPDIR")) {
439 /* on Windows it is TMP and TEMP */
440 result = getenv("TMP");
442 result = getenv("TEMP");
448 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
449 * (Parsing C++ Command-Line Arguments)
451 static const char *quote_arg(const char *arg)
453 /* count chars to quote */
455 int force_quotes = 0;
458 if (!*p) force_quotes = 1;
460 if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'')
464 else if (*p == '\\') {
478 if (!force_quotes && n == 0)
481 /* insert \ where necessary */
482 d = q = xmalloc(len+n+3);
487 else if (*arg == '\\') {
489 while (*arg == '\\') {
506 static const char *parse_interpreter(const char *cmd)
508 static char buf[100];
512 /* don't even try a .exe */
514 if (n >= 4 && !strcasecmp(cmd+n-4, ".exe"))
517 fd = open(cmd, O_RDONLY);
520 n = read(fd, buf, sizeof(buf)-1);
522 if (n < 4) /* at least '#!/x' and not error */
525 if (buf[0] != '#' || buf[1] != '!')
528 p = strchr(buf, '\n');
533 if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\')))
536 if ((opt = strchr(p+1, ' ')))
542 * Splits the PATH into parts.
544 static char **get_path_split(void)
546 char *p, **path, *envpath = getenv("PATH");
549 if (!envpath || !*envpath)
552 envpath = xstrdup(envpath);
558 if (*dir) { /* not earlier, catches series of ; */
565 path = xmalloc((n+1)*sizeof(char*));
570 path[i++] = xstrdup(p);
580 static void free_path_split(char **path)
592 * exe_only means that we only want to detect .exe files, but not scripts
593 * (which do not have an extension)
595 static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only)
598 snprintf(path, sizeof(path), "%s/%s.exe", dir, cmd);
600 if (!isexe && access(path, F_OK) == 0)
601 return xstrdup(path);
602 path[strlen(path)-4] = '\0';
603 if ((!exe_only || isexe) && access(path, F_OK) == 0)
604 if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY))
605 return xstrdup(path);
610 * Determines the absolute path of cmd using the the split path in path.
611 * If cmd contains a slash or backslash, no lookup is performed.
613 static char *path_lookup(const char *cmd, char **path, int exe_only)
616 int len = strlen(cmd);
617 int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe");
619 if (strchr(cmd, '/') || strchr(cmd, '\\'))
622 while (!prog && *path)
623 prog = lookup_prog(*path++, cmd, isexe, exe_only);
628 static int env_compare(const void *a, const void *b)
632 return strcasecmp(*ea, *eb);
635 static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
639 PROCESS_INFORMATION pi;
640 struct strbuf envblk, args;
644 /* Determine whether or not we are associated to a console */
645 HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
646 FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
647 FILE_ATTRIBUTE_NORMAL, NULL);
648 if (cons == INVALID_HANDLE_VALUE) {
649 /* There is no console associated with this process.
650 * Since the child is a console process, Windows
651 * would normally create a console window. But
652 * since we'll be redirecting std streams, we do
653 * not need the console.
654 * It is necessary to use DETACHED_PROCESS
655 * instead of CREATE_NO_WINDOW to make ssh
656 * recognize that it has no console.
658 flags = DETACHED_PROCESS;
660 /* There is already a console. If we specified
661 * DETACHED_PROCESS here, too, Windows would
662 * disassociate the child from the console.
663 * The same is true for CREATE_NO_WINDOW.
669 memset(&si, 0, sizeof(si));
671 si.dwFlags = STARTF_USESTDHANDLES;
672 si.hStdInput = (HANDLE) _get_osfhandle(0);
673 si.hStdOutput = (HANDLE) _get_osfhandle(1);
674 si.hStdError = (HANDLE) _get_osfhandle(2);
676 /* concatenate argv, quoting args as we go */
677 strbuf_init(&args, 0);
679 char *quoted = (char *)quote_arg(cmd);
680 strbuf_addstr(&args, quoted);
684 for (; *argv; argv++) {
685 char *quoted = (char *)quote_arg(*argv);
687 strbuf_addch(&args, ' ');
688 strbuf_addstr(&args, quoted);
695 char **e, **sorted_env;
697 for (e = env; *e; e++)
700 /* environment must be sorted */
701 sorted_env = xmalloc(sizeof(*sorted_env) * (count + 1));
702 memcpy(sorted_env, env, sizeof(*sorted_env) * (count + 1));
703 qsort(sorted_env, count, sizeof(*sorted_env), env_compare);
705 strbuf_init(&envblk, 0);
706 for (e = sorted_env; *e; e++) {
707 strbuf_addstr(&envblk, *e);
708 strbuf_addch(&envblk, '\0');
713 memset(&pi, 0, sizeof(pi));
714 ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags,
715 env ? envblk.buf : NULL, NULL, &si, &pi);
718 strbuf_release(&envblk);
719 strbuf_release(&args);
725 CloseHandle(pi.hThread);
726 return (pid_t)pi.hProcess;
729 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
732 char **path = get_path_split();
733 char *prog = path_lookup(cmd, path, 0);
740 const char *interpr = parse_interpreter(prog);
743 const char *argv0 = argv[0];
744 char *iprog = path_lookup(interpr, path, 1);
751 pid = mingw_spawnve(iprog, argv, env, 1);
757 pid = mingw_spawnve(prog, argv, env, 0);
760 free_path_split(path);
764 static int try_shell_exec(const char *cmd, char *const *argv, char **env)
766 const char *interpr = parse_interpreter(cmd);
773 path = get_path_split();
774 prog = path_lookup(interpr, path, 1);
778 while (argv[argc]) argc++;
779 argv2 = xmalloc(sizeof(*argv) * (argc+1));
780 argv2[0] = (char *)cmd; /* full path to the script file */
781 memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
782 pid = mingw_spawnve(prog, argv2, env, 1);
785 if (waitpid(pid, &status, 0) < 0)
789 pid = 1; /* indicate that we tried but failed */
793 free_path_split(path);
797 static void mingw_execve(const char *cmd, char *const *argv, char *const *env)
799 /* check if git_command is a shell script */
800 if (!try_shell_exec(cmd, argv, (char **)env)) {
803 pid = mingw_spawnve(cmd, (const char **)argv, (char **)env, 0);
806 if (waitpid(pid, &status, 0) < 0)
812 void mingw_execvp(const char *cmd, char *const *argv)
814 char **path = get_path_split();
815 char *prog = path_lookup(cmd, path, 0);
818 mingw_execve(prog, argv, environ);
823 free_path_split(path);
826 char **copy_environ()
832 env = xmalloc((i+1)*sizeof(*env));
833 for (i = 0; environ[i]; i++)
834 env[i] = xstrdup(environ[i]);
839 void free_environ(char **env)
842 for (i = 0; env[i]; i++)
847 static int lookup_env(char **env, const char *name, size_t nmln)
851 for (i = 0; env[i]; i++) {
852 if (0 == strncmp(env[i], name, nmln)
853 && '=' == env[i][nmln])
861 * If name contains '=', then sets the variable, otherwise it unsets it
863 char **env_setenv(char **env, const char *name)
865 char *eq = strchrnul(name, '=');
866 int i = lookup_env(env, name, eq-name);
870 for (i = 0; env[i]; i++)
872 env = xrealloc(env, (i+2)*sizeof(*env));
873 env[i] = xstrdup(name);
880 env[i] = xstrdup(name);
888 /* this is the first function to call into WS_32; initialize it */
890 struct hostent *mingw_gethostbyname(const char *host)
894 if (WSAStartup(MAKEWORD(2,2), &wsa))
895 die("unable to initialize winsock subsystem, error %d",
897 atexit((void(*)(void)) WSACleanup);
898 return gethostbyname(host);
901 int mingw_socket(int domain, int type, int protocol)
904 SOCKET s = WSASocket(domain, type, protocol, NULL, 0, 0);
905 if (s == INVALID_SOCKET) {
907 * WSAGetLastError() values are regular BSD error codes
908 * biased by WSABASEERR.
909 * However, strerror() does not know about networking
910 * specific errors, which are values beginning at 38 or so.
911 * Therefore, we choose to leave the biased error code
912 * in errno so that _if_ someone looks up the code somewhere,
913 * then it is at least the number that are usually listed.
915 errno = WSAGetLastError();
918 /* convert into a file descriptor */
919 if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
921 return error("unable to make a socket file descriptor: %s",
928 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
930 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
931 return connect(s, sa, sz);
935 int mingw_rename(const char *pold, const char *pnew)
940 * Try native rename() first to get errno right.
941 * It is based on MoveFile(), which cannot overwrite existing files.
943 if (!rename(pold, pnew))
947 if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
949 /* TODO: translate more errors */
950 if (GetLastError() == ERROR_ACCESS_DENIED &&
951 (attrs = GetFileAttributes(pnew)) != INVALID_FILE_ATTRIBUTES) {
952 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
956 if ((attrs & FILE_ATTRIBUTE_READONLY) &&
957 SetFileAttributes(pnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
958 if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
960 /* revert file attributes on failure */
961 SetFileAttributes(pnew, attrs);
968 struct passwd *getpwuid(int uid)
970 static char user_name[100];
971 static struct passwd p;
973 DWORD len = sizeof(user_name);
974 if (!GetUserName(user_name, &len))
976 p.pw_name = user_name;
977 p.pw_gecos = "unknown";
982 static HANDLE timer_event;
983 static HANDLE timer_thread;
984 static int timer_interval;
986 static sig_handler_t timer_fn = SIG_DFL;
988 /* The timer works like this:
989 * The thread, ticktack(), is a trivial routine that most of the time
990 * only waits to receive the signal to terminate. The main thread tells
991 * the thread to terminate by setting the timer_event to the signalled
993 * But ticktack() interrupts the wait state after the timer's interval
994 * length to call the signal handler.
997 static __stdcall unsigned ticktack(void *dummy)
999 while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
1000 if (timer_fn == SIG_DFL)
1002 if (timer_fn != SIG_IGN)
1010 static int start_timer_thread(void)
1012 timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1014 timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
1016 return errno = ENOMEM,
1017 error("cannot start timer thread");
1019 return errno = ENOMEM,
1020 error("cannot allocate resources for timer");
1024 static void stop_timer_thread(void)
1027 SetEvent(timer_event); /* tell thread to terminate */
1029 int rc = WaitForSingleObject(timer_thread, 1000);
1030 if (rc == WAIT_TIMEOUT)
1031 error("timer thread did not terminate timely");
1032 else if (rc != WAIT_OBJECT_0)
1033 error("waiting for timer thread failed: %lu",
1035 CloseHandle(timer_thread);
1038 CloseHandle(timer_event);
1040 timer_thread = NULL;
1043 static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2)
1045 return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec;
1048 int setitimer(int type, struct itimerval *in, struct itimerval *out)
1050 static const struct timeval zero;
1051 static int atexit_done;
1054 return errno = EINVAL,
1055 error("setitimer param 3 != NULL not implemented");
1056 if (!is_timeval_eq(&in->it_interval, &zero) &&
1057 !is_timeval_eq(&in->it_interval, &in->it_value))
1058 return errno = EINVAL,
1059 error("setitimer: it_interval must be zero or eq it_value");
1062 stop_timer_thread();
1064 if (is_timeval_eq(&in->it_value, &zero) &&
1065 is_timeval_eq(&in->it_interval, &zero))
1068 timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000;
1069 one_shot = is_timeval_eq(&in->it_interval, &zero);
1071 atexit(stop_timer_thread);
1074 return start_timer_thread();
1077 int sigaction(int sig, struct sigaction *in, struct sigaction *out)
1080 return errno = EINVAL,
1081 error("sigaction only implemented for SIGALRM");
1083 return errno = EINVAL,
1084 error("sigaction: param 3 != NULL not implemented");
1086 timer_fn = in->sa_handler;
1091 sig_handler_t mingw_signal(int sig, sig_handler_t handler)
1094 return signal(sig, handler);
1095 sig_handler_t old = timer_fn;
1100 static const char *make_backslash_path(const char *path)
1102 static char buf[PATH_MAX + 1];
1105 if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
1106 die("Too long path: %.*s", 60, path);
1108 for (c = buf; *c; c++) {
1115 void mingw_open_html(const char *unixpath)
1117 const char *htmlpath = make_backslash_path(unixpath);
1118 printf("Launching default browser to display HTML ...\n");
1119 ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
1122 int link(const char *oldpath, const char *newpath)
1124 typedef BOOL WINAPI (*T)(const char*, const char*, LPSECURITY_ATTRIBUTES);
1125 static T create_hard_link = NULL;
1126 if (!create_hard_link) {
1127 create_hard_link = (T) GetProcAddress(
1128 GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
1129 if (!create_hard_link)
1130 create_hard_link = (T)-1;
1132 if (create_hard_link == (T)-1) {
1136 if (!create_hard_link(newpath, oldpath, NULL)) {
1137 errno = err_win_to_posix(GetLastError());