| #include "../git-compat-util.h" |
| #include "win32.h" |
| #include <conio.h> |
| #include "../strbuf.h" |
| |
| int err_win_to_posix(DWORD winerr) |
| { |
| int error = ENOSYS; |
| switch(winerr) { |
| case ERROR_ACCESS_DENIED: error = EACCES; break; |
| case ERROR_ACCOUNT_DISABLED: error = EACCES; break; |
| case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break; |
| case ERROR_ALREADY_ASSIGNED: error = EBUSY; break; |
| case ERROR_ALREADY_EXISTS: error = EEXIST; break; |
| case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break; |
| case ERROR_BAD_COMMAND: error = EIO; break; |
| case ERROR_BAD_DEVICE: error = ENODEV; break; |
| case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break; |
| case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break; |
| case ERROR_BAD_FORMAT: error = ENOEXEC; break; |
| case ERROR_BAD_LENGTH: error = EINVAL; break; |
| case ERROR_BAD_PATHNAME: error = ENOENT; break; |
| case ERROR_BAD_PIPE: error = EPIPE; break; |
| case ERROR_BAD_UNIT: error = ENODEV; break; |
| case ERROR_BAD_USERNAME: error = EINVAL; break; |
| case ERROR_BROKEN_PIPE: error = EPIPE; break; |
| case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break; |
| case ERROR_BUSY: error = EBUSY; break; |
| case ERROR_BUSY_DRIVE: error = EBUSY; break; |
| case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break; |
| case ERROR_CANNOT_MAKE: error = EACCES; break; |
| case ERROR_CANTOPEN: error = EIO; break; |
| case ERROR_CANTREAD: error = EIO; break; |
| case ERROR_CANTWRITE: error = EIO; break; |
| case ERROR_CRC: error = EIO; break; |
| case ERROR_CURRENT_DIRECTORY: error = EACCES; break; |
| case ERROR_DEVICE_IN_USE: error = EBUSY; break; |
| case ERROR_DEV_NOT_EXIST: error = ENODEV; break; |
| case ERROR_DIRECTORY: error = EINVAL; break; |
| case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break; |
| case ERROR_DISK_CHANGE: error = EIO; break; |
| case ERROR_DISK_FULL: error = ENOSPC; break; |
| case ERROR_DRIVE_LOCKED: error = EBUSY; break; |
| case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break; |
| case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break; |
| case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break; |
| case ERROR_FILE_EXISTS: error = EEXIST; break; |
| case ERROR_FILE_INVALID: error = ENODEV; break; |
| case ERROR_FILE_NOT_FOUND: error = ENOENT; break; |
| case ERROR_GEN_FAILURE: error = EIO; break; |
| case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break; |
| case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break; |
| case ERROR_INVALID_ACCESS: error = EACCES; break; |
| case ERROR_INVALID_ADDRESS: error = EFAULT; break; |
| case ERROR_INVALID_BLOCK: error = EFAULT; break; |
| case ERROR_INVALID_DATA: error = EINVAL; break; |
| case ERROR_INVALID_DRIVE: error = ENODEV; break; |
| case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break; |
| case ERROR_INVALID_FLAGS: error = EINVAL; break; |
| case ERROR_INVALID_FUNCTION: error = ENOSYS; break; |
| case ERROR_INVALID_HANDLE: error = EBADF; break; |
| case ERROR_INVALID_LOGON_HOURS: error = EACCES; break; |
| case ERROR_INVALID_NAME: error = EINVAL; break; |
| case ERROR_INVALID_OWNER: error = EINVAL; break; |
| case ERROR_INVALID_PARAMETER: error = EINVAL; break; |
| case ERROR_INVALID_PASSWORD: error = EPERM; break; |
| case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break; |
| case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break; |
| case ERROR_INVALID_TARGET_HANDLE: error = EIO; break; |
| case ERROR_INVALID_WORKSTATION: error = EACCES; break; |
| case ERROR_IO_DEVICE: error = EIO; break; |
| case ERROR_IO_INCOMPLETE: error = EINTR; break; |
| case ERROR_LOCKED: error = EBUSY; break; |
| case ERROR_LOCK_VIOLATION: error = EACCES; break; |
| case ERROR_LOGON_FAILURE: error = EACCES; break; |
| case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break; |
| case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break; |
| case ERROR_MORE_DATA: error = EPIPE; break; |
| case ERROR_NEGATIVE_SEEK: error = ESPIPE; break; |
| case ERROR_NOACCESS: error = EFAULT; break; |
| case ERROR_NONE_MAPPED: error = EINVAL; break; |
| case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break; |
| case ERROR_NOT_READY: error = EAGAIN; break; |
| case ERROR_NOT_SAME_DEVICE: error = EXDEV; break; |
| case ERROR_NO_DATA: error = EPIPE; break; |
| case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break; |
| case ERROR_NO_PROC_SLOTS: error = EAGAIN; break; |
| case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break; |
| case ERROR_OPEN_FAILED: error = EIO; break; |
| case ERROR_OPEN_FILES: error = EBUSY; break; |
| case ERROR_OPERATION_ABORTED: error = EINTR; break; |
| case ERROR_OUTOFMEMORY: error = ENOMEM; break; |
| case ERROR_PASSWORD_EXPIRED: error = EACCES; break; |
| case ERROR_PATH_BUSY: error = EBUSY; break; |
| case ERROR_PATH_NOT_FOUND: error = ENOENT; break; |
| case ERROR_PIPE_BUSY: error = EBUSY; break; |
| case ERROR_PIPE_CONNECTED: error = EPIPE; break; |
| case ERROR_PIPE_LISTENING: error = EPIPE; break; |
| case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break; |
| case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break; |
| case ERROR_READ_FAULT: error = EIO; break; |
| case ERROR_SEEK: error = EIO; break; |
| case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break; |
| case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break; |
| case ERROR_SHARING_VIOLATION: error = EACCES; break; |
| case ERROR_STACK_OVERFLOW: error = ENOMEM; break; |
| case ERROR_SWAPERROR: error = ENOENT; break; |
| case ERROR_TOO_MANY_MODULES: error = EMFILE; break; |
| case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break; |
| case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break; |
| case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break; |
| case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break; |
| case ERROR_WRITE_FAULT: error = EIO; break; |
| case ERROR_WRITE_PROTECT: error = EROFS; break; |
| } |
| return error; |
| } |
| |
| #undef open |
| int mingw_open (const char *filename, int oflags, ...) |
| { |
| va_list args; |
| unsigned mode; |
| int fd; |
| |
| va_start(args, oflags); |
| mode = va_arg(args, int); |
| va_end(args); |
| |
| if (!strcmp(filename, "/dev/null")) |
| filename = "nul"; |
| |
| fd = open(filename, oflags, mode); |
| |
| if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) { |
| DWORD attrs = GetFileAttributes(filename); |
| if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY)) |
| errno = EISDIR; |
| } |
| return fd; |
| } |
| |
| #undef write |
| ssize_t mingw_write(int fd, const void *buf, size_t count) |
| { |
| /* |
| * While write() calls to a file on a local disk are translated |
| * into WriteFile() calls with a maximum size of 64KB on Windows |
| * XP and 256KB on Vista, no such cap is placed on writes to |
| * files over the network on Windows XP. Unfortunately, there |
| * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86; |
| * bigger writes fail on Windows XP. |
| * So we cap to a nice 31MB here to avoid write failures over |
| * the net without changing the number of WriteFile() calls in |
| * the local case. |
| */ |
| return write(fd, buf, min(count, 31 * 1024 * 1024)); |
| } |
| |
| #undef fopen |
| FILE *mingw_fopen (const char *filename, const char *otype) |
| { |
| if (!strcmp(filename, "/dev/null")) |
| filename = "nul"; |
| return fopen(filename, otype); |
| } |
| |
| #undef freopen |
| FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream) |
| { |
| if (filename && !strcmp(filename, "/dev/null")) |
| filename = "nul"; |
| return freopen(filename, otype, stream); |
| } |
| |
| /* |
| * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC. |
| * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch. |
| */ |
| static inline long long filetime_to_hnsec(const FILETIME *ft) |
| { |
| long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime; |
| /* Windows to Unix Epoch conversion */ |
| return winTime - 116444736000000000LL; |
| } |
| |
| static inline time_t filetime_to_time_t(const FILETIME *ft) |
| { |
| return (time_t)(filetime_to_hnsec(ft) / 10000000); |
| } |
| |
| /* We keep the do_lstat code in a separate function to avoid recursion. |
| * When a path ends with a slash, the stat will fail with ENOENT. In |
| * this case, we strip the trailing slashes and stat again. |
| */ |
| static int do_lstat(const char *file_name, struct stat *buf) |
| { |
| WIN32_FILE_ATTRIBUTE_DATA fdata; |
| |
| if (!(errno = get_file_attr(file_name, &fdata))) { |
| buf->st_ino = 0; |
| buf->st_gid = 0; |
| buf->st_uid = 0; |
| buf->st_nlink = 1; |
| buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes); |
| buf->st_size = fdata.nFileSizeLow | |
| (((off_t)fdata.nFileSizeHigh)<<32); |
| buf->st_dev = buf->st_rdev = 0; /* not used by Git */ |
| buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime)); |
| buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime)); |
| buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime)); |
| return 0; |
| } |
| return -1; |
| } |
| |
| /* We provide our own lstat/fstat functions, since the provided |
| * lstat/fstat functions are so slow. These stat functions are |
| * tailored for Git's usage (read: fast), and are not meant to be |
| * complete. Note that Git stat()s are redirected to mingw_lstat() |
| * too, since Windows doesn't really handle symlinks that well. |
| */ |
| int mingw_lstat(const char *file_name, struct stat *buf) |
| { |
| int namelen; |
| static char alt_name[PATH_MAX]; |
| |
| if (!do_lstat(file_name, buf)) |
| return 0; |
| |
| /* if file_name ended in a '/', Windows returned ENOENT; |
| * try again without trailing slashes |
| */ |
| if (errno != ENOENT) |
| return -1; |
| |
| namelen = strlen(file_name); |
| if (namelen && file_name[namelen-1] != '/') |
| return -1; |
| while (namelen && file_name[namelen-1] == '/') |
| --namelen; |
| if (!namelen || namelen >= PATH_MAX) |
| return -1; |
| |
| memcpy(alt_name, file_name, namelen); |
| alt_name[namelen] = 0; |
| return do_lstat(alt_name, buf); |
| } |
| |
| #undef fstat |
| int mingw_fstat(int fd, struct stat *buf) |
| { |
| HANDLE fh = (HANDLE)_get_osfhandle(fd); |
| BY_HANDLE_FILE_INFORMATION fdata; |
| |
| if (fh == INVALID_HANDLE_VALUE) { |
| errno = EBADF; |
| return -1; |
| } |
| /* direct non-file handles to MS's fstat() */ |
| if (GetFileType(fh) != FILE_TYPE_DISK) |
| return _fstati64(fd, buf); |
| |
| if (GetFileInformationByHandle(fh, &fdata)) { |
| buf->st_ino = 0; |
| buf->st_gid = 0; |
| buf->st_uid = 0; |
| buf->st_nlink = 1; |
| buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes); |
| buf->st_size = fdata.nFileSizeLow | |
| (((off_t)fdata.nFileSizeHigh)<<32); |
| buf->st_dev = buf->st_rdev = 0; /* not used by Git */ |
| buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime)); |
| buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime)); |
| buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime)); |
| return 0; |
| } |
| errno = EBADF; |
| return -1; |
| } |
| |
| static inline void time_t_to_filetime(time_t t, FILETIME *ft) |
| { |
| long long winTime = t * 10000000LL + 116444736000000000LL; |
| ft->dwLowDateTime = winTime; |
| ft->dwHighDateTime = winTime >> 32; |
| } |
| |
| int mingw_utime (const char *file_name, const struct utimbuf *times) |
| { |
| FILETIME mft, aft; |
| int fh, rc; |
| |
| /* must have write permission */ |
| DWORD attrs = GetFileAttributes(file_name); |
| if (attrs != INVALID_FILE_ATTRIBUTES && |
| (attrs & FILE_ATTRIBUTE_READONLY)) { |
| /* ignore errors here; open() will report them */ |
| SetFileAttributes(file_name, attrs & ~FILE_ATTRIBUTE_READONLY); |
| } |
| |
| if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0) { |
| rc = -1; |
| goto revert_attrs; |
| } |
| |
| time_t_to_filetime(times->modtime, &mft); |
| time_t_to_filetime(times->actime, &aft); |
| if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) { |
| errno = EINVAL; |
| rc = -1; |
| } else |
| rc = 0; |
| close(fh); |
| |
| revert_attrs: |
| if (attrs != INVALID_FILE_ATTRIBUTES && |
| (attrs & FILE_ATTRIBUTE_READONLY)) { |
| /* ignore errors again */ |
| SetFileAttributes(file_name, attrs); |
| } |
| return rc; |
| } |
| |
| unsigned int sleep (unsigned int seconds) |
| { |
| Sleep(seconds*1000); |
| return 0; |
| } |
| |
| int mkstemp(char *template) |
| { |
| char *filename = mktemp(template); |
| if (filename == NULL) |
| return -1; |
| return open(filename, O_RDWR | O_CREAT, 0600); |
| } |
| |
| int gettimeofday(struct timeval *tv, void *tz) |
| { |
| FILETIME ft; |
| long long hnsec; |
| |
| GetSystemTimeAsFileTime(&ft); |
| hnsec = filetime_to_hnsec(&ft); |
| tv->tv_sec = hnsec / 10000000; |
| tv->tv_usec = (hnsec % 10000000) / 10; |
| return 0; |
| } |
| |
| int pipe(int filedes[2]) |
| { |
| HANDLE h[2]; |
| |
| /* this creates non-inheritable handles */ |
| if (!CreatePipe(&h[0], &h[1], NULL, 8192)) { |
| errno = err_win_to_posix(GetLastError()); |
| return -1; |
| } |
| filedes[0] = _open_osfhandle((int)h[0], O_NOINHERIT); |
| if (filedes[0] < 0) { |
| CloseHandle(h[0]); |
| CloseHandle(h[1]); |
| return -1; |
| } |
| filedes[1] = _open_osfhandle((int)h[1], O_NOINHERIT); |
| if (filedes[0] < 0) { |
| close(filedes[0]); |
| CloseHandle(h[1]); |
| return -1; |
| } |
| return 0; |
| } |
| |
| int poll(struct pollfd *ufds, unsigned int nfds, int timeout) |
| { |
| int i, pending; |
| |
| if (timeout >= 0) { |
| if (nfds == 0) { |
| Sleep(timeout); |
| return 0; |
| } |
| return errno = EINVAL, error("poll timeout not supported"); |
| } |
| |
| /* When there is only one fd to wait for, then we pretend that |
| * input is available and let the actual wait happen when the |
| * caller invokes read(). |
| */ |
| if (nfds == 1) { |
| if (!(ufds[0].events & POLLIN)) |
| return errno = EINVAL, error("POLLIN not set"); |
| ufds[0].revents = POLLIN; |
| return 0; |
| } |
| |
| repeat: |
| pending = 0; |
| for (i = 0; i < nfds; i++) { |
| DWORD avail = 0; |
| HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd); |
| if (h == INVALID_HANDLE_VALUE) |
| return -1; /* errno was set */ |
| |
| if (!(ufds[i].events & POLLIN)) |
| return errno = EINVAL, error("POLLIN not set"); |
| |
| /* this emulation works only for pipes */ |
| if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) { |
| int err = GetLastError(); |
| if (err == ERROR_BROKEN_PIPE) { |
| ufds[i].revents = POLLHUP; |
| pending++; |
| } else { |
| errno = EINVAL; |
| return error("PeekNamedPipe failed," |
| " GetLastError: %u", err); |
| } |
| } else if (avail) { |
| ufds[i].revents = POLLIN; |
| pending++; |
| } else |
| ufds[i].revents = 0; |
| } |
| if (!pending) { |
| /* The only times that we spin here is when the process |
| * that is connected through the pipes is waiting for |
| * its own input data to become available. But since |
| * the process (pack-objects) is itself CPU intensive, |
| * it will happily pick up the time slice that we are |
| * relinquishing here. |
| */ |
| Sleep(0); |
| goto repeat; |
| } |
| return 0; |
| } |
| |
| struct tm *gmtime_r(const time_t *timep, struct tm *result) |
| { |
| /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */ |
| memcpy(result, gmtime(timep), sizeof(struct tm)); |
| return result; |
| } |
| |
| struct tm *localtime_r(const time_t *timep, struct tm *result) |
| { |
| /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */ |
| memcpy(result, localtime(timep), sizeof(struct tm)); |
| return result; |
| } |
| |
| #undef getcwd |
| char *mingw_getcwd(char *pointer, int len) |
| { |
| int i; |
| char *ret = getcwd(pointer, len); |
| if (!ret) |
| return ret; |
| for (i = 0; pointer[i]; i++) |
| if (pointer[i] == '\\') |
| pointer[i] = '/'; |
| return ret; |
| } |
| |
| #undef getenv |
| char *mingw_getenv(const char *name) |
| { |
| char *result = getenv(name); |
| if (!result && !strcmp(name, "TMPDIR")) { |
| /* on Windows it is TMP and TEMP */ |
| result = getenv("TMP"); |
| if (!result) |
| result = getenv("TEMP"); |
| } |
| return result; |
| } |
| |
| /* |
| * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx |
| * (Parsing C++ Command-Line Arguments) |
| */ |
| static const char *quote_arg(const char *arg) |
| { |
| /* count chars to quote */ |
| int len = 0, n = 0; |
| int force_quotes = 0; |
| char *q, *d; |
| const char *p = arg; |
| if (!*p) force_quotes = 1; |
| while (*p) { |
| if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'') |
| force_quotes = 1; |
| else if (*p == '"') |
| n++; |
| else if (*p == '\\') { |
| int count = 0; |
| while (*p == '\\') { |
| count++; |
| p++; |
| len++; |
| } |
| if (*p == '"') |
| n += count*2 + 1; |
| continue; |
| } |
| len++; |
| p++; |
| } |
| if (!force_quotes && n == 0) |
| return arg; |
| |
| /* insert \ where necessary */ |
| d = q = xmalloc(len+n+3); |
| *d++ = '"'; |
| while (*arg) { |
| if (*arg == '"') |
| *d++ = '\\'; |
| else if (*arg == '\\') { |
| int count = 0; |
| while (*arg == '\\') { |
| count++; |
| *d++ = *arg++; |
| } |
| if (*arg == '"') { |
| while (count-- > 0) |
| *d++ = '\\'; |
| *d++ = '\\'; |
| } |
| } |
| *d++ = *arg++; |
| } |
| *d++ = '"'; |
| *d++ = 0; |
| return q; |
| } |
| |
| static const char *parse_interpreter(const char *cmd) |
| { |
| static char buf[100]; |
| char *p, *opt; |
| int n, fd; |
| |
| /* don't even try a .exe */ |
| n = strlen(cmd); |
| if (n >= 4 && !strcasecmp(cmd+n-4, ".exe")) |
| return NULL; |
| |
| fd = open(cmd, O_RDONLY); |
| if (fd < 0) |
| return NULL; |
| n = read(fd, buf, sizeof(buf)-1); |
| close(fd); |
| if (n < 4) /* at least '#!/x' and not error */ |
| return NULL; |
| |
| if (buf[0] != '#' || buf[1] != '!') |
| return NULL; |
| buf[n] = '\0'; |
| p = buf + strcspn(buf, "\r\n"); |
| if (!*p) |
| return NULL; |
| |
| *p = '\0'; |
| if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\'))) |
| return NULL; |
| /* strip options */ |
| if ((opt = strchr(p+1, ' '))) |
| *opt = '\0'; |
| return p+1; |
| } |
| |
| /* |
| * Splits the PATH into parts. |
| */ |
| static char **get_path_split(void) |
| { |
| char *p, **path, *envpath = getenv("PATH"); |
| int i, n = 0; |
| |
| if (!envpath || !*envpath) |
| return NULL; |
| |
| envpath = xstrdup(envpath); |
| p = envpath; |
| while (p) { |
| char *dir = p; |
| p = strchr(p, ';'); |
| if (p) *p++ = '\0'; |
| if (*dir) { /* not earlier, catches series of ; */ |
| ++n; |
| } |
| } |
| if (!n) |
| return NULL; |
| |
| path = xmalloc((n+1)*sizeof(char *)); |
| p = envpath; |
| i = 0; |
| do { |
| if (*p) |
| path[i++] = xstrdup(p); |
| p = p+strlen(p)+1; |
| } while (i < n); |
| path[i] = NULL; |
| |
| free(envpath); |
| |
| return path; |
| } |
| |
| static void free_path_split(char **path) |
| { |
| char **p = path; |
| |
| if (!path) |
| return; |
| |
| while (*p) |
| free(*p++); |
| free(path); |
| } |
| |
| /* |
| * exe_only means that we only want to detect .exe files, but not scripts |
| * (which do not have an extension) |
| */ |
| static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only) |
| { |
| char path[MAX_PATH]; |
| snprintf(path, sizeof(path), "%s/%s.exe", dir, cmd); |
| |
| if (!isexe && access(path, F_OK) == 0) |
| return xstrdup(path); |
| path[strlen(path)-4] = '\0'; |
| if ((!exe_only || isexe) && access(path, F_OK) == 0) |
| if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY)) |
| return xstrdup(path); |
| return NULL; |
| } |
| |
| /* |
| * Determines the absolute path of cmd using the the split path in path. |
| * If cmd contains a slash or backslash, no lookup is performed. |
| */ |
| static char *path_lookup(const char *cmd, char **path, int exe_only) |
| { |
| char *prog = NULL; |
| int len = strlen(cmd); |
| int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe"); |
| |
| if (strchr(cmd, '/') || strchr(cmd, '\\')) |
| prog = xstrdup(cmd); |
| |
| while (!prog && *path) |
| prog = lookup_prog(*path++, cmd, isexe, exe_only); |
| |
| return prog; |
| } |
| |
| static int env_compare(const void *a, const void *b) |
| { |
| char *const *ea = a; |
| char *const *eb = b; |
| return strcasecmp(*ea, *eb); |
| } |
| |
| static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env, |
| const char *dir, |
| int prepend_cmd, int fhin, int fhout, int fherr) |
| { |
| STARTUPINFO si; |
| PROCESS_INFORMATION pi; |
| struct strbuf envblk, args; |
| unsigned flags; |
| BOOL ret; |
| |
| /* Determine whether or not we are associated to a console */ |
| HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE, |
| FILE_SHARE_WRITE, NULL, OPEN_EXISTING, |
| FILE_ATTRIBUTE_NORMAL, NULL); |
| if (cons == INVALID_HANDLE_VALUE) { |
| /* There is no console associated with this process. |
| * Since the child is a console process, Windows |
| * would normally create a console window. But |
| * since we'll be redirecting std streams, we do |
| * not need the console. |
| * It is necessary to use DETACHED_PROCESS |
| * instead of CREATE_NO_WINDOW to make ssh |
| * recognize that it has no console. |
| */ |
| flags = DETACHED_PROCESS; |
| } else { |
| /* There is already a console. If we specified |
| * DETACHED_PROCESS here, too, Windows would |
| * disassociate the child from the console. |
| * The same is true for CREATE_NO_WINDOW. |
| * Go figure! |
| */ |
| flags = 0; |
| CloseHandle(cons); |
| } |
| memset(&si, 0, sizeof(si)); |
| si.cb = sizeof(si); |
| si.dwFlags = STARTF_USESTDHANDLES; |
| si.hStdInput = (HANDLE) _get_osfhandle(fhin); |
| si.hStdOutput = (HANDLE) _get_osfhandle(fhout); |
| si.hStdError = (HANDLE) _get_osfhandle(fherr); |
| |
| /* concatenate argv, quoting args as we go */ |
| strbuf_init(&args, 0); |
| if (prepend_cmd) { |
| char *quoted = (char *)quote_arg(cmd); |
| strbuf_addstr(&args, quoted); |
| if (quoted != cmd) |
| free(quoted); |
| } |
| for (; *argv; argv++) { |
| char *quoted = (char *)quote_arg(*argv); |
| if (*args.buf) |
| strbuf_addch(&args, ' '); |
| strbuf_addstr(&args, quoted); |
| if (quoted != *argv) |
| free(quoted); |
| } |
| |
| if (env) { |
| int count = 0; |
| char **e, **sorted_env; |
| |
| for (e = env; *e; e++) |
| count++; |
| |
| /* environment must be sorted */ |
| sorted_env = xmalloc(sizeof(*sorted_env) * (count + 1)); |
| memcpy(sorted_env, env, sizeof(*sorted_env) * (count + 1)); |
| qsort(sorted_env, count, sizeof(*sorted_env), env_compare); |
| |
| strbuf_init(&envblk, 0); |
| for (e = sorted_env; *e; e++) { |
| strbuf_addstr(&envblk, *e); |
| strbuf_addch(&envblk, '\0'); |
| } |
| free(sorted_env); |
| } |
| |
| memset(&pi, 0, sizeof(pi)); |
| ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags, |
| env ? envblk.buf : NULL, dir, &si, &pi); |
| |
| if (env) |
| strbuf_release(&envblk); |
| strbuf_release(&args); |
| |
| if (!ret) { |
| errno = ENOENT; |
| return -1; |
| } |
| CloseHandle(pi.hThread); |
| return (pid_t)pi.hProcess; |
| } |
| |
| static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env, |
| int prepend_cmd) |
| { |
| return mingw_spawnve_fd(cmd, argv, env, NULL, prepend_cmd, 0, 1, 2); |
| } |
| |
| pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env, |
| const char *dir, |
| int fhin, int fhout, int fherr) |
| { |
| pid_t pid; |
| char **path = get_path_split(); |
| char *prog = path_lookup(cmd, path, 0); |
| |
| if (!prog) { |
| errno = ENOENT; |
| pid = -1; |
| } |
| else { |
| const char *interpr = parse_interpreter(prog); |
| |
| if (interpr) { |
| const char *argv0 = argv[0]; |
| char *iprog = path_lookup(interpr, path, 1); |
| argv[0] = prog; |
| if (!iprog) { |
| errno = ENOENT; |
| pid = -1; |
| } |
| else { |
| pid = mingw_spawnve_fd(iprog, argv, env, dir, 1, |
| fhin, fhout, fherr); |
| free(iprog); |
| } |
| argv[0] = argv0; |
| } |
| else |
| pid = mingw_spawnve_fd(prog, argv, env, dir, 0, |
| fhin, fhout, fherr); |
| free(prog); |
| } |
| free_path_split(path); |
| return pid; |
| } |
| |
| static int try_shell_exec(const char *cmd, char *const *argv, char **env) |
| { |
| const char *interpr = parse_interpreter(cmd); |
| char **path; |
| char *prog; |
| int pid = 0; |
| |
| if (!interpr) |
| return 0; |
| path = get_path_split(); |
| prog = path_lookup(interpr, path, 1); |
| if (prog) { |
| int argc = 0; |
| const char **argv2; |
| while (argv[argc]) argc++; |
| argv2 = xmalloc(sizeof(*argv) * (argc+1)); |
| argv2[0] = (char *)cmd; /* full path to the script file */ |
| memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc); |
| pid = mingw_spawnve(prog, argv2, env, 1); |
| if (pid >= 0) { |
| int status; |
| if (waitpid(pid, &status, 0) < 0) |
| status = 255; |
| exit(status); |
| } |
| pid = 1; /* indicate that we tried but failed */ |
| free(prog); |
| free(argv2); |
| } |
| free_path_split(path); |
| return pid; |
| } |
| |
| static void mingw_execve(const char *cmd, char *const *argv, char *const *env) |
| { |
| /* check if git_command is a shell script */ |
| if (!try_shell_exec(cmd, argv, (char **)env)) { |
| int pid, status; |
| |
| pid = mingw_spawnve(cmd, (const char **)argv, (char **)env, 0); |
| if (pid < 0) |
| return; |
| if (waitpid(pid, &status, 0) < 0) |
| status = 255; |
| exit(status); |
| } |
| } |
| |
| void mingw_execvp(const char *cmd, char *const *argv) |
| { |
| char **path = get_path_split(); |
| char *prog = path_lookup(cmd, path, 0); |
| |
| if (prog) { |
| mingw_execve(prog, argv, environ); |
| free(prog); |
| } else |
| errno = ENOENT; |
| |
| free_path_split(path); |
| } |
| |
| static char **copy_environ(void) |
| { |
| char **env; |
| int i = 0; |
| while (environ[i]) |
| i++; |
| env = xmalloc((i+1)*sizeof(*env)); |
| for (i = 0; environ[i]; i++) |
| env[i] = xstrdup(environ[i]); |
| env[i] = NULL; |
| return env; |
| } |
| |
| void free_environ(char **env) |
| { |
| int i; |
| for (i = 0; env[i]; i++) |
| free(env[i]); |
| free(env); |
| } |
| |
| static int lookup_env(char **env, const char *name, size_t nmln) |
| { |
| int i; |
| |
| for (i = 0; env[i]; i++) { |
| if (0 == strncmp(env[i], name, nmln) |
| && '=' == env[i][nmln]) |
| /* matches */ |
| return i; |
| } |
| return -1; |
| } |
| |
| /* |
| * If name contains '=', then sets the variable, otherwise it unsets it |
| */ |
| static char **env_setenv(char **env, const char *name) |
| { |
| char *eq = strchrnul(name, '='); |
| int i = lookup_env(env, name, eq-name); |
| |
| if (i < 0) { |
| if (*eq) { |
| for (i = 0; env[i]; i++) |
| ; |
| env = xrealloc(env, (i+2)*sizeof(*env)); |
| env[i] = xstrdup(name); |
| env[i+1] = NULL; |
| } |
| } |
| else { |
| free(env[i]); |
| if (*eq) |
| env[i] = xstrdup(name); |
| else |
| for (; env[i]; i++) |
| env[i] = env[i+1]; |
| } |
| return env; |
| } |
| |
| /* |
| * Copies global environ and adjusts variables as specified by vars. |
| */ |
| char **make_augmented_environ(const char *const *vars) |
| { |
| char **env = copy_environ(); |
| |
| while (*vars) |
| env = env_setenv(env, *vars++); |
| return env; |
| } |
| |
| /* |
| * Note, this isn't a complete replacement for getaddrinfo. It assumes |
| * that service contains a numerical port, or that it it is null. It |
| * does a simple search using gethostbyname, and returns one IPv4 host |
| * if one was found. |
| */ |
| static int WSAAPI getaddrinfo_stub(const char *node, const char *service, |
| const struct addrinfo *hints, |
| struct addrinfo **res) |
| { |
| struct hostent *h = gethostbyname(node); |
| struct addrinfo *ai; |
| struct sockaddr_in *sin; |
| |
| if (!h) |
| return WSAGetLastError(); |
| |
| ai = xmalloc(sizeof(struct addrinfo)); |
| *res = ai; |
| ai->ai_flags = 0; |
| ai->ai_family = AF_INET; |
| ai->ai_socktype = hints->ai_socktype; |
| switch (hints->ai_socktype) { |
| case SOCK_STREAM: |
| ai->ai_protocol = IPPROTO_TCP; |
| break; |
| case SOCK_DGRAM: |
| ai->ai_protocol = IPPROTO_UDP; |
| break; |
| default: |
| ai->ai_protocol = 0; |
| break; |
| } |
| ai->ai_addrlen = sizeof(struct sockaddr_in); |
| ai->ai_canonname = strdup(h->h_name); |
| |
| sin = xmalloc(ai->ai_addrlen); |
| memset(sin, 0, ai->ai_addrlen); |
| sin->sin_family = AF_INET; |
| if (service) |
| sin->sin_port = htons(atoi(service)); |
| sin->sin_addr = *(struct in_addr *)h->h_addr; |
| ai->ai_addr = (struct sockaddr *)sin; |
| ai->ai_next = 0; |
| return 0; |
| } |
| |
| static void WSAAPI freeaddrinfo_stub(struct addrinfo *res) |
| { |
| free(res->ai_canonname); |
| free(res->ai_addr); |
| free(res); |
| } |
| |
| static int WSAAPI getnameinfo_stub(const struct sockaddr *sa, socklen_t salen, |
| char *host, DWORD hostlen, |
| char *serv, DWORD servlen, int flags) |
| { |
| const struct sockaddr_in *sin = (const struct sockaddr_in *)sa; |
| if (sa->sa_family != AF_INET) |
| return EAI_FAMILY; |
| if (!host && !serv) |
| return EAI_NONAME; |
| |
| if (host && hostlen > 0) { |
| struct hostent *ent = NULL; |
| if (!(flags & NI_NUMERICHOST)) |
| ent = gethostbyaddr((const char *)&sin->sin_addr, |
| sizeof(sin->sin_addr), AF_INET); |
| |
| if (ent) |
| snprintf(host, hostlen, "%s", ent->h_name); |
| else if (flags & NI_NAMEREQD) |
| return EAI_NONAME; |
| else |
| snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr)); |
| } |
| |
| if (serv && servlen > 0) { |
| struct servent *ent = NULL; |
| if (!(flags & NI_NUMERICSERV)) |
| ent = getservbyport(sin->sin_port, |
| flags & NI_DGRAM ? "udp" : "tcp"); |
| |
| if (ent) |
| snprintf(serv, servlen, "%s", ent->s_name); |
| else |
| snprintf(serv, servlen, "%d", ntohs(sin->sin_port)); |
| } |
| |
| return 0; |
| } |
| |
| static HMODULE ipv6_dll = NULL; |
| static void (WSAAPI *ipv6_freeaddrinfo)(struct addrinfo *res); |
| static int (WSAAPI *ipv6_getaddrinfo)(const char *node, const char *service, |
| const struct addrinfo *hints, |
| struct addrinfo **res); |
| static int (WSAAPI *ipv6_getnameinfo)(const struct sockaddr *sa, socklen_t salen, |
| char *host, DWORD hostlen, |
| char *serv, DWORD servlen, int flags); |
| /* |
| * gai_strerror is an inline function in the ws2tcpip.h header, so we |
| * don't need to try to load that one dynamically. |
| */ |
| |
| static void socket_cleanup(void) |
| { |
| WSACleanup(); |
| if (ipv6_dll) |
| FreeLibrary(ipv6_dll); |
| ipv6_dll = NULL; |
| ipv6_freeaddrinfo = freeaddrinfo_stub; |
| ipv6_getaddrinfo = getaddrinfo_stub; |
| ipv6_getnameinfo = getnameinfo_stub; |
| } |
| |
| static void ensure_socket_initialization(void) |
| { |
| WSADATA wsa; |
| static int initialized = 0; |
| const char *libraries[] = { "ws2_32.dll", "wship6.dll", NULL }; |
| const char **name; |
| |
| if (initialized) |
| return; |
| |
| if (WSAStartup(MAKEWORD(2,2), &wsa)) |
| die("unable to initialize winsock subsystem, error %d", |
| WSAGetLastError()); |
| |
| for (name = libraries; *name; name++) { |
| ipv6_dll = LoadLibrary(*name); |
| if (!ipv6_dll) |
| continue; |
| |
| ipv6_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *)) |
| GetProcAddress(ipv6_dll, "freeaddrinfo"); |
| ipv6_getaddrinfo = (int (WSAAPI *)(const char *, const char *, |
| const struct addrinfo *, |
| struct addrinfo **)) |
| GetProcAddress(ipv6_dll, "getaddrinfo"); |
| ipv6_getnameinfo = (int (WSAAPI *)(const struct sockaddr *, |
| socklen_t, char *, DWORD, |
| char *, DWORD, int)) |
| GetProcAddress(ipv6_dll, "getnameinfo"); |
| if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) { |
| FreeLibrary(ipv6_dll); |
| ipv6_dll = NULL; |
| } else |
| break; |
| } |
| if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) { |
| ipv6_freeaddrinfo = freeaddrinfo_stub; |
| ipv6_getaddrinfo = getaddrinfo_stub; |
| ipv6_getnameinfo = getnameinfo_stub; |
| } |
| |
| atexit(socket_cleanup); |
| initialized = 1; |
| } |
| |
| #undef gethostbyname |
| struct hostent *mingw_gethostbyname(const char *host) |
| { |
| ensure_socket_initialization(); |
| return gethostbyname(host); |
| } |
| |
| void mingw_freeaddrinfo(struct addrinfo *res) |
| { |
| ipv6_freeaddrinfo(res); |
| } |
| |
| int mingw_getaddrinfo(const char *node, const char *service, |
| const struct addrinfo *hints, struct addrinfo **res) |
| { |
| ensure_socket_initialization(); |
| return ipv6_getaddrinfo(node, service, hints, res); |
| } |
| |
| int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen, |
| char *host, DWORD hostlen, char *serv, DWORD servlen, |
| int flags) |
| { |
| ensure_socket_initialization(); |
| return ipv6_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags); |
| } |
| |
| int mingw_socket(int domain, int type, int protocol) |
| { |
| int sockfd; |
| SOCKET s = WSASocket(domain, type, protocol, NULL, 0, 0); |
| if (s == INVALID_SOCKET) { |
| /* |
| * WSAGetLastError() values are regular BSD error codes |
| * biased by WSABASEERR. |
| * However, strerror() does not know about networking |
| * specific errors, which are values beginning at 38 or so. |
| * Therefore, we choose to leave the biased error code |
| * in errno so that _if_ someone looks up the code somewhere, |
| * then it is at least the number that are usually listed. |
| */ |
| errno = WSAGetLastError(); |
| return -1; |
| } |
| /* convert into a file descriptor */ |
| if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) { |
| closesocket(s); |
| return error("unable to make a socket file descriptor: %s", |
| strerror(errno)); |
| } |
| return sockfd; |
| } |
| |
| #undef connect |
| int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz) |
| { |
| SOCKET s = (SOCKET)_get_osfhandle(sockfd); |
| return connect(s, sa, sz); |
| } |
| |
| #undef rename |
| int mingw_rename(const char *pold, const char *pnew) |
| { |
| DWORD attrs, gle; |
| int tries = 0; |
| static const int delay[] = { 0, 1, 10, 20, 40 }; |
| |
| /* |
| * Try native rename() first to get errno right. |
| * It is based on MoveFile(), which cannot overwrite existing files. |
| */ |
| if (!rename(pold, pnew)) |
| return 0; |
| if (errno != EEXIST) |
| return -1; |
| repeat: |
| if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING)) |
| return 0; |
| /* TODO: translate more errors */ |
| gle = GetLastError(); |
| if (gle == ERROR_ACCESS_DENIED && |
| (attrs = GetFileAttributes(pnew)) != INVALID_FILE_ATTRIBUTES) { |
| if (attrs & FILE_ATTRIBUTE_DIRECTORY) { |
| errno = EISDIR; |
| return -1; |
| } |
| if ((attrs & FILE_ATTRIBUTE_READONLY) && |
| SetFileAttributes(pnew, attrs & ~FILE_ATTRIBUTE_READONLY)) { |
| if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING)) |
| return 0; |
| gle = GetLastError(); |
| /* revert file attributes on failure */ |
| SetFileAttributes(pnew, attrs); |
| } |
| } |
| if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) { |
| /* |
| * We assume that some other process had the source or |
| * destination file open at the wrong moment and retry. |
| * In order to give the other process a higher chance to |
| * complete its operation, we give up our time slice now. |
| * If we have to retry again, we do sleep a bit. |
| */ |
| Sleep(delay[tries]); |
| tries++; |
| goto repeat; |
| } |
| errno = EACCES; |
| return -1; |
| } |
| |
| /* |
| * Note that this doesn't return the actual pagesize, but |
| * the allocation granularity. If future Windows specific git code |
| * needs the real getpagesize function, we need to find another solution. |
| */ |
| int mingw_getpagesize(void) |
| { |
| SYSTEM_INFO si; |
| GetSystemInfo(&si); |
| return si.dwAllocationGranularity; |
| } |
| |
| struct passwd *getpwuid(int uid) |
| { |
| static char user_name[100]; |
| static struct passwd p; |
| |
| DWORD len = sizeof(user_name); |
| if (!GetUserName(user_name, &len)) |
| return NULL; |
| p.pw_name = user_name; |
| p.pw_gecos = "unknown"; |
| p.pw_dir = NULL; |
| return &p; |
| } |
| |
| static HANDLE timer_event; |
| static HANDLE timer_thread; |
| static int timer_interval; |
| static int one_shot; |
| static sig_handler_t timer_fn = SIG_DFL; |
| |
| /* The timer works like this: |
| * The thread, ticktack(), is a trivial routine that most of the time |
| * only waits to receive the signal to terminate. The main thread tells |
| * the thread to terminate by setting the timer_event to the signalled |
| * state. |
| * But ticktack() interrupts the wait state after the timer's interval |
| * length to call the signal handler. |
| */ |
| |
| static unsigned __stdcall ticktack(void *dummy) |
| { |
| while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) { |
| if (timer_fn == SIG_DFL) |
| die("Alarm"); |
| if (timer_fn != SIG_IGN) |
| timer_fn(SIGALRM); |
| if (one_shot) |
| break; |
| } |
| return 0; |
| } |
| |
| static int start_timer_thread(void) |
| { |
| timer_event = CreateEvent(NULL, FALSE, FALSE, NULL); |
| if (timer_event) { |
| timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL); |
| if (!timer_thread ) |
| return errno = ENOMEM, |
| error("cannot start timer thread"); |
| } else |
| return errno = ENOMEM, |
| error("cannot allocate resources for timer"); |
| return 0; |
| } |
| |
| static void stop_timer_thread(void) |
| { |
| if (timer_event) |
| SetEvent(timer_event); /* tell thread to terminate */ |
| if (timer_thread) { |
| int rc = WaitForSingleObject(timer_thread, 1000); |
| if (rc == WAIT_TIMEOUT) |
| error("timer thread did not terminate timely"); |
| else if (rc != WAIT_OBJECT_0) |
| error("waiting for timer thread failed: %lu", |
| GetLastError()); |
| CloseHandle(timer_thread); |
| } |
| if (timer_event) |
| CloseHandle(timer_event); |
| timer_event = NULL; |
| timer_thread = NULL; |
| } |
| |
| static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2) |
| { |
| return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec; |
| } |
| |
| int setitimer(int type, struct itimerval *in, struct itimerval *out) |
| { |
| static const struct timeval zero; |
| static int atexit_done; |
| |
| if (out != NULL) |
| return errno = EINVAL, |
| error("setitimer param 3 != NULL not implemented"); |
| if (!is_timeval_eq(&in->it_interval, &zero) && |
| !is_timeval_eq(&in->it_interval, &in->it_value)) |
| return errno = EINVAL, |
| error("setitimer: it_interval must be zero or eq it_value"); |
| |
| if (timer_thread) |
| stop_timer_thread(); |
| |
| if (is_timeval_eq(&in->it_value, &zero) && |
| is_timeval_eq(&in->it_interval, &zero)) |
| return 0; |
| |
| timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000; |
| one_shot = is_timeval_eq(&in->it_interval, &zero); |
| if (!atexit_done) { |
| atexit(stop_timer_thread); |
| atexit_done = 1; |
| } |
| return start_timer_thread(); |
| } |
| |
| int sigaction(int sig, struct sigaction *in, struct sigaction *out) |
| { |
| if (sig != SIGALRM) |
| return errno = EINVAL, |
| error("sigaction only implemented for SIGALRM"); |
| if (out != NULL) |
| return errno = EINVAL, |
| error("sigaction: param 3 != NULL not implemented"); |
| |
| timer_fn = in->sa_handler; |
| return 0; |
| } |
| |
| #undef signal |
| sig_handler_t mingw_signal(int sig, sig_handler_t handler) |
| { |
| sig_handler_t old = timer_fn; |
| if (sig != SIGALRM) |
| return signal(sig, handler); |
| timer_fn = handler; |
| return old; |
| } |
| |
| static const char *make_backslash_path(const char *path) |
| { |
| static char buf[PATH_MAX + 1]; |
| char *c; |
| |
| if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX) |
| die("Too long path: %.*s", 60, path); |
| |
| for (c = buf; *c; c++) { |
| if (*c == '/') |
| *c = '\\'; |
| } |
| return buf; |
| } |
| |
| void mingw_open_html(const char *unixpath) |
| { |
| const char *htmlpath = make_backslash_path(unixpath); |
| typedef HINSTANCE (WINAPI *T)(HWND, const char *, |
| const char *, const char *, const char *, INT); |
| T ShellExecute; |
| HMODULE shell32; |
| |
| shell32 = LoadLibrary("shell32.dll"); |
| if (!shell32) |
| die("cannot load shell32.dll"); |
| ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA"); |
| if (!ShellExecute) |
| die("cannot run browser"); |
| |
| printf("Launching default browser to display HTML ...\n"); |
| ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0); |
| |
| FreeLibrary(shell32); |
| } |
| |
| int link(const char *oldpath, const char *newpath) |
| { |
| typedef BOOL (WINAPI *T)(const char*, const char*, LPSECURITY_ATTRIBUTES); |
| static T create_hard_link = NULL; |
| if (!create_hard_link) { |
| create_hard_link = (T) GetProcAddress( |
| GetModuleHandle("kernel32.dll"), "CreateHardLinkA"); |
| if (!create_hard_link) |
| create_hard_link = (T)-1; |
| } |
| if (create_hard_link == (T)-1) { |
| errno = ENOSYS; |
| return -1; |
| } |
| if (!create_hard_link(newpath, oldpath, NULL)) { |
| errno = err_win_to_posix(GetLastError()); |
| return -1; |
| } |
| return 0; |
| } |
| |
| char *getpass(const char *prompt) |
| { |
| struct strbuf buf = STRBUF_INIT; |
| |
| fputs(prompt, stderr); |
| for (;;) { |
| char c = _getch(); |
| if (c == '\r' || c == '\n') |
| break; |
| strbuf_addch(&buf, c); |
| } |
| fputs("\n", stderr); |
| return strbuf_detach(&buf, NULL); |
| } |
| |
| #ifndef NO_MINGW_REPLACE_READDIR |
| /* MinGW readdir implementation to avoid extra lstats for Git */ |
| struct mingw_DIR |
| { |
| struct _finddata_t dd_dta; /* disk transfer area for this dir */ |
| struct mingw_dirent dd_dir; /* Our own implementation, including d_type */ |
| long dd_handle; /* _findnext handle */ |
| int dd_stat; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */ |
| char dd_name[1]; /* given path for dir with search pattern (struct is extended) */ |
| }; |
| |
| struct dirent *mingw_readdir(DIR *dir) |
| { |
| WIN32_FIND_DATAA buf; |
| HANDLE handle; |
| struct mingw_DIR *mdir = (struct mingw_DIR*)dir; |
| |
| if (!dir->dd_handle) { |
| errno = EBADF; /* No set_errno for mingw */ |
| return NULL; |
| } |
| |
| if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0) |
| { |
| DWORD lasterr; |
| handle = FindFirstFileA(dir->dd_name, &buf); |
| lasterr = GetLastError(); |
| dir->dd_handle = (long)handle; |
| if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) { |
| errno = err_win_to_posix(lasterr); |
| return NULL; |
| } |
| } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) { |
| return NULL; |
| } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) { |
| DWORD lasterr = GetLastError(); |
| FindClose((HANDLE)dir->dd_handle); |
| dir->dd_handle = (long)INVALID_HANDLE_VALUE; |
| /* POSIX says you shouldn't set errno when readdir can't |
| find any more files; so, if another error we leave it set. */ |
| if (lasterr != ERROR_NO_MORE_FILES) |
| errno = err_win_to_posix(lasterr); |
| return NULL; |
| } |
| |
| /* We get here if `buf' contains valid data. */ |
| strcpy(dir->dd_dir.d_name, buf.cFileName); |
| ++dir->dd_stat; |
| |
| /* Set file type, based on WIN32_FIND_DATA */ |
| mdir->dd_dir.d_type = 0; |
| if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) |
| mdir->dd_dir.d_type |= DT_DIR; |
| else |
| mdir->dd_dir.d_type |= DT_REG; |
| |
| return (struct dirent*)&dir->dd_dir; |
| } |
| #endif // !NO_MINGW_REPLACE_READDIR |