| /* gstdio.c - wrappers for C library functions |
| * |
| * Copyright 2004 Tor Lillqvist |
| * |
| * GLib is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU Lesser General Public License as |
| * published by the Free Software Foundation; either version 2 of the |
| * License, or (at your option) any later version. |
| * |
| * GLib is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with GLib; see the file COPYING.LIB. If not, |
| * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| #include "config.h" |
| |
| #define G_STDIO_NO_WRAP_ON_UNIX |
| |
| #include "glib.h" |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| #ifdef G_OS_WIN32 |
| #include <windows.h> |
| #include <errno.h> |
| #include <wchar.h> |
| #include <direct.h> |
| #include <io.h> |
| #endif |
| |
| #include "gstdio.h" |
| |
| #include "galias.h" |
| |
| #if !defined (G_OS_UNIX) && !defined (G_OS_WIN32) && !defined (G_OS_BEOS) |
| #error Please port this to your operating system |
| #endif |
| |
| |
| /** |
| * g_access: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @mode: as in access() |
| * |
| * A wrapper for the POSIX access() function. This function is used to |
| * test a pathname for one or several of read, write or execute |
| * permissions, or just existence. On Windows, the underlying access() |
| * function in the C library only checks the READONLY attribute, and |
| * does not look at the ACL at all. Software that needs to handle file |
| * permissions on Windows more exactly should use the Win32 API. |
| * |
| * See the C library manual for more details about access(). |
| * |
| * Returns: zero if the pathname refers to an existing file system |
| * object that has all the tested permissions, or -1 otherwise or on |
| * error. |
| * |
| * Since: 2.8 |
| */ |
| int |
| g_access (const gchar *filename, |
| int mode) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _waccess (wfilename, mode); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return access (filename, mode); |
| #endif |
| } |
| |
| /** |
| * g_chmod: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @mode: as in chmod() |
| * |
| * A wrapper for the POSIX chmod() function. The chmod() function is |
| * used to set the permissions of a file system object. Note that on |
| * Windows the file protection mechanism is not at all POSIX-like, and |
| * the underlying chmod() function in the C library just sets or |
| * clears the READONLY attribute. It does not touch any ACL. Software |
| * that needs to manage file permissions on Windows exactly should |
| * use the Win32 API. |
| * |
| * See the C library manual for more details about chmod(). |
| * |
| * Returns: zero if the operation succeeded, -1 on error. |
| * |
| * Since: 2.8 |
| */ |
| int |
| g_chmod (const gchar *filename, |
| int mode) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _wchmod (wfilename, mode); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return chmod (filename, mode); |
| #endif |
| } |
| |
| /** |
| * g_open: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @flags: as in open() |
| * @mode: as in open() |
| * |
| * A wrapper for the POSIX open() function. The open() function is |
| * used to convert a pathname into a file descriptor. Note that on |
| * POSIX systems file descriptors are implemented by the operating |
| * system. On Windows, it's the C library that implements open() and |
| * file descriptors. The actual Windows API for opening files is |
| * something different. |
| * |
| * See the C library manual for more details about open(). |
| * |
| * Returns: a new file descriptor, or -1 if an error occurred. The |
| * return value can be used exactly like the return value from open(). |
| * |
| * Since: 2.6 |
| */ |
| int |
| g_open (const gchar *filename, |
| int flags, |
| int mode) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _wopen (wfilename, flags, mode); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return open (filename, flags, mode); |
| #endif |
| } |
| |
| /** |
| * g_creat: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @mode: as in creat() |
| * |
| * A wrapper for the POSIX creat() function. The creat() function is |
| * used to convert a pathname into a file descriptor, creating a file |
| * if necessary. Note that on POSIX systems file descriptors are |
| * implemented by the operating system. On Windows, it's the C library |
| * that implements creat() and file descriptors. The actual Windows |
| * API for opening files is something different. |
| * |
| * See the C library manual for more details about creat(). |
| * |
| * Returns: a new file descriptor, or -1 if an error occurred. The |
| * return value can be used exactly like the return value from creat(). |
| * |
| * Since: 2.8 |
| */ |
| int |
| g_creat (const gchar *filename, |
| int mode) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _wcreat (wfilename, mode); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return creat (filename, mode); |
| #endif |
| } |
| |
| /** |
| * g_rename: |
| * @oldfilename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @newfilename: a pathname in the GLib file name encoding |
| * |
| * A wrapper for the POSIX rename() function. The rename() function |
| * renames a file, moving it between directories if required. |
| * |
| * See your C library manual for more details about how rename() works |
| * on your system. Note in particular that on Win9x it is not possible |
| * to rename a file if a file with the new name already exists. Also |
| * it is not possible in general on Windows to rename an open file. |
| * |
| * Returns: 0 if the renaming succeeded, -1 if an error occurred |
| * |
| * Since: 2.6 |
| */ |
| int |
| g_rename (const gchar *oldfilename, |
| const gchar *newfilename) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *woldfilename = g_utf8_to_utf16 (oldfilename, -1, NULL, NULL, NULL); |
| wchar_t *wnewfilename; |
| int retval; |
| int save_errno = 0; |
| |
| if (woldfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| wnewfilename = g_utf8_to_utf16 (newfilename, -1, NULL, NULL, NULL); |
| |
| if (wnewfilename == NULL) |
| { |
| g_free (woldfilename); |
| errno = EINVAL; |
| return -1; |
| } |
| |
| if (MoveFileExW (woldfilename, wnewfilename, MOVEFILE_REPLACE_EXISTING)) |
| retval = 0; |
| else |
| { |
| retval = -1; |
| switch (GetLastError ()) |
| { |
| #define CASE(a,b) case ERROR_##a: save_errno = b; break |
| CASE (FILE_NOT_FOUND, ENOENT); |
| CASE (PATH_NOT_FOUND, ENOENT); |
| CASE (ACCESS_DENIED, EACCES); |
| CASE (NOT_SAME_DEVICE, EXDEV); |
| CASE (LOCK_VIOLATION, EACCES); |
| CASE (SHARING_VIOLATION, EACCES); |
| CASE (FILE_EXISTS, EEXIST); |
| CASE (ALREADY_EXISTS, EEXIST); |
| #undef CASE |
| default: save_errno = EIO; |
| } |
| } |
| |
| g_free (woldfilename); |
| g_free (wnewfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return rename (oldfilename, newfilename); |
| #endif |
| } |
| |
| /** |
| * g_mkdir: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @mode: permissions to use for the newly created directory |
| * |
| * A wrapper for the POSIX mkdir() function. The mkdir() function |
| * attempts to create a directory with the given name and permissions. |
| * The mode argument is ignored on Windows. |
| * |
| * See the C library manual for more details about mkdir(). |
| * |
| * Returns: 0 if the directory was successfully created, -1 if an error |
| * occurred |
| * |
| * Since: 2.6 |
| */ |
| int |
| g_mkdir (const gchar *filename, |
| int mode) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _wmkdir (wfilename); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return mkdir (filename, mode); |
| #endif |
| } |
| |
| /** |
| * g_chdir: |
| * @path: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * |
| * A wrapper for the POSIX chdir() function. The function changes the |
| * current directory of the process to @path. |
| * |
| * See your C library manual for more details about chdir(). |
| * |
| * Returns: 0 on success, -1 if an error occurred. |
| * |
| * Since: 2.8 |
| */ |
| int |
| g_chdir (const gchar *path) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wpath = g_utf8_to_utf16 (path, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wpath == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _wchdir (wpath); |
| save_errno = errno; |
| |
| g_free (wpath); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return chdir (path); |
| #endif |
| } |
| |
| /** |
| * g_stat: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @buf: a pointer to a <structname>stat</structname> struct, which |
| * will be filled with the file information |
| * |
| * A wrapper for the POSIX stat() function. The stat() function |
| * returns information about a file. On Windows the stat() function in |
| * the C library checks only the READONLY attribute and does not look |
| * at the ACL at all. Thus the protection bits in the st_mode field |
| * are a fabrication of little use. |
| * |
| * See the C library manual for more details about stat(). |
| * |
| * Returns: 0 if the information was successfully retrieved, -1 if an error |
| * occurred |
| * |
| * Since: 2.6 |
| */ |
| int |
| g_stat (const gchar *filename, |
| struct stat *buf) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| int len; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| len = wcslen (wfilename); |
| while (len > 0 && G_IS_DIR_SEPARATOR (wfilename[len-1])) |
| len--; |
| if (len > 0 && |
| (!g_path_is_absolute (filename) || len > g_path_skip_root (filename) - filename)) |
| wfilename[len] = '\0'; |
| |
| retval = _wstat (wfilename, (struct _stat *) buf); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return stat (filename, buf); |
| #endif |
| } |
| |
| /** |
| * g_lstat: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @buf: a pointer to a <structname>stat</structname> struct, which |
| * will be filled with the file information |
| * |
| * A wrapper for the POSIX lstat() function. The lstat() function is |
| * like stat() except that in the case of symbolic links, it returns |
| * information about the symbolic link itself and not the file that it |
| * refers to. If the system does not support symbolic links g_lstat() |
| * is identical to g_stat(). |
| * |
| * See the C library manual for more details about lstat(). |
| * |
| * Returns: 0 if the information was successfully retrieved, -1 if an error |
| * occurred |
| * |
| * Since: 2.6 |
| */ |
| int |
| g_lstat (const gchar *filename, |
| struct stat *buf) |
| { |
| #ifdef HAVE_LSTAT |
| /* This can't be Win32, so don't do the widechar dance. */ |
| return lstat (filename, buf); |
| #else |
| return g_stat (filename, buf); |
| #endif |
| } |
| |
| /** |
| * g_unlink: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * |
| * A wrapper for the POSIX unlink() function. The unlink() function |
| * deletes a name from the filesystem. If this was the last link to the |
| * file and no processes have it opened, the diskspace occupied by the |
| * file is freed. |
| * |
| * See your C library manual for more details about unlink(). Note |
| * that on Windows, it is in general not possible to delete files that |
| * are open to some process, or mapped into memory. |
| * |
| * Returns: 0 if the name was successfully deleted, -1 if an error |
| * occurred |
| * |
| * Since: 2.6 |
| */ |
| int |
| g_unlink (const gchar *filename) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _wunlink (wfilename); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return unlink (filename); |
| #endif |
| } |
| |
| /** |
| * g_remove: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * |
| * A wrapper for the POSIX remove() function. The remove() function |
| * deletes a name from the filesystem. |
| * |
| * See your C library manual for more details about how remove() works |
| * on your system. On Unix, remove() removes also directories, as it |
| * calls unlink() for files and rmdir() for directories. On Windows, |
| * although remove() in the C library only works for files, this |
| * function tries first remove() and then if that fails rmdir(), and |
| * thus works for both files and directories. Note however, that on |
| * Windows, it is in general not possible to remove a file that is |
| * open to some process, or mapped into memory. |
| * |
| * If this function fails on Windows you can't infer too much from the |
| * errno value. rmdir() is tried regardless of what caused remove() to |
| * fail. Any errno value set by remove() will be overwritten by that |
| * set by rmdir(). |
| * |
| * Returns: 0 if the file was successfully removed, -1 if an error |
| * occurred |
| * |
| * Since: 2.6 |
| */ |
| int |
| g_remove (const gchar *filename) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _wremove (wfilename); |
| if (retval == -1) |
| retval = _wrmdir (wfilename); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return remove (filename); |
| #endif |
| } |
| |
| /** |
| * g_rmdir: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * |
| * A wrapper for the POSIX rmdir() function. The rmdir() function |
| * deletes a directory from the filesystem. |
| * |
| * See your C library manual for more details about how rmdir() works |
| * on your system. |
| * |
| * Returns: 0 if the directory was successfully removed, -1 if an error |
| * occurred |
| * |
| * Since: 2.6 |
| */ |
| int |
| g_rmdir (const gchar *filename) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| int retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| retval = _wrmdir (wfilename); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return rmdir (filename); |
| #endif |
| } |
| |
| /** |
| * g_fopen: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @mode: a string describing the mode in which the file should be |
| * opened |
| * |
| * A wrapper for the POSIX fopen() function. The fopen() function opens |
| * a file and associates a new stream with it. |
| * |
| * See the C library manual for more details about fopen(). |
| * |
| * Returns: A <type>FILE</type> pointer if the file was successfully |
| * opened, or %NULL if an error occurred |
| * |
| * Since: 2.6 |
| */ |
| FILE * |
| g_fopen (const gchar *filename, |
| const gchar *mode) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| wchar_t *wmode; |
| FILE *retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return NULL; |
| } |
| |
| wmode = g_utf8_to_utf16 (mode, -1, NULL, NULL, NULL); |
| |
| if (wmode == NULL) |
| { |
| g_free (wfilename); |
| errno = EINVAL; |
| return NULL; |
| } |
| |
| retval = _wfopen (wfilename, wmode); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| g_free (wmode); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return fopen (filename, mode); |
| #endif |
| } |
| |
| /** |
| * g_freopen: |
| * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows) |
| * @mode: a string describing the mode in which the file should be |
| * opened |
| * @stream: an existing stream which will be reused, or %NULL |
| * |
| * A wrapper for the POSIX freopen() function. The freopen() function |
| * opens a file and associates it with an existing stream. |
| * |
| * See the C library manual for more details about freopen(). |
| * |
| * Returns: A <type>FILE</type> pointer if the file was successfully |
| * opened, or %NULL if an error occurred. |
| * |
| * Since: 2.6 |
| */ |
| FILE * |
| g_freopen (const gchar *filename, |
| const gchar *mode, |
| FILE *stream) |
| { |
| #ifdef G_OS_WIN32 |
| wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL); |
| wchar_t *wmode; |
| FILE *retval; |
| int save_errno; |
| |
| if (wfilename == NULL) |
| { |
| errno = EINVAL; |
| return NULL; |
| } |
| |
| wmode = g_utf8_to_utf16 (mode, -1, NULL, NULL, NULL); |
| |
| if (wmode == NULL) |
| { |
| g_free (wfilename); |
| errno = EINVAL; |
| return NULL; |
| } |
| |
| retval = _wfreopen (wfilename, wmode, stream); |
| save_errno = errno; |
| |
| g_free (wfilename); |
| g_free (wmode); |
| |
| errno = save_errno; |
| return retval; |
| #else |
| return freopen (filename, mode, stream); |
| #endif |
| } |
| |
| #define __G_STDIO_C__ |
| #include "galiasdef.c" |