--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/glib/glib/gstdio.c Fri Apr 16 16:46:38 2010 +0300
@@ -0,0 +1,812 @@
+/* gstdio.c - wrappers for C library functions
+ *
+ * Copyright 2004 Tor Lillqvist
+ * Portions copyright (c) 2006-2009 Nokia Corporation. All rights reserved.
+ *
+ * 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>
+#include <sys/utime.h>
+#else
+#include <utime.h>
+#endif
+
+#include "gstdio.h"
+
+#include "galias.h"
+
+#if !defined (G_OS_UNIX) && !defined (G_OS_WIN32) && !defined (G_OS_BEOS) && !defined (__SYMBIAN32__)
+#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 file protection mechanism is not at all POSIX-like,
+ * and the underlying function in the C library only checks the
+ * FAT-style READONLY attribute, and does not look at the ACL of a
+ * file at all. This function is this in practise almost useless on
+ * Windows. Software that needs to handle file permissions on Windows
+ * more exactly should use the Win32 API.
+ *
+ * See your 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
+ */
+EXPORT_C 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;
+ }
+
+#ifndef X_OK
+#define X_OK 1
+#endif
+
+ retval = _waccess (wfilename, mode & ~X_OK);
+ 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.
+ *
+ * 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 FAT-style READONLY attribute. It does not touch any
+ * ACL. Software that needs to manage file permissions on Windows
+ * exactly should use the Win32 API.
+ *
+ * See your C library manual for more details about chmod().
+ *
+ * Returns: zero if the operation succeeded, -1 on error.
+ *
+ * Since: 2.8
+ */
+EXPORT_C 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.
+ *
+ * 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 Win32 API for opening files is quite
+ * different, see MSDN documentation for CreateFile(). The Win32 API
+ * uses file handles, which are more randomish integers, not small
+ * integers like file descriptors.
+ *
+ * Because file descriptors are specific to the C library on Windows,
+ * the file descriptor returned by this function makes sense only to
+ * functions in the same C library. Thus if the GLib-using code uses a
+ * different C library than GLib does, the file descriptor returned by
+ * this function cannot be passed to C library functions like write()
+ * or read().
+ *
+ * See your 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
+ */
+EXPORT_C 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.
+
+ * 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
+ * different, see MSDN documentation for CreateFile(). The Win32 API
+ * uses file handles, which are more randomish integers, not small
+ * integers like file descriptors.
+ *
+ * Because file descriptors are specific to the C library on Windows,
+ * the file descriptor returned by this function makes sense only to
+ * functions in the same C library. Thus if the GLib-using code uses a
+ * different C library than GLib does, the file descriptor returned by
+ * this function cannot be passed to C library functions like write()
+ * or read().
+ *
+ * See your 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
+ */
+EXPORT_C 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. It is not possible in general on Windows to rename
+ * a file that is open to some process.
+ *
+ * Returns: 0 if the renaming succeeded, -1 if an error occurred
+ *
+ * Since: 2.6
+ */
+EXPORT_C 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 your C library manual for more details about mkdir().
+ *
+ * Returns: 0 if the directory was successfully created, -1 if an error
+ * occurred
+ *
+ * Since: 2.6
+ */
+EXPORT_C 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
+ */
+EXPORT_C 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 FAT-style READONLY attribute and does
+ * not look at the ACL at all. Thus on Windows the protection bits in
+ * the st_mode field are a fabrication of little use.
+ *
+ * See your C library manual for more details about stat().
+ *
+ * Returns: 0 if the information was successfully retrieved, -1 if an error
+ * occurred
+ *
+ * Since: 2.6
+ */
+EXPORT_C 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 your C library manual for more details about lstat().
+ *
+ * Returns: 0 if the information was successfully retrieved, -1 if an error
+ * occurred
+ *
+ * Since: 2.6
+ */
+EXPORT_C 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
+ */
+EXPORT_C 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
+ */
+EXPORT_C 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
+ */
+EXPORT_C 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 stdio fopen() function. The fopen() function
+ * opens a file and associates a new stream with it.
+ *
+ * Because file descriptors are specific to the C library on Windows,
+ * and a file descriptor is partof the <type>FILE</type> struct, the
+ * <type>FILE</type> pointer returned by this function makes sense
+ * only to functions in the same C library. Thus if the GLib-using
+ * code uses a different C library than GLib does, the
+ * <type>FILE</type> pointer returned by this function cannot be
+ * passed to C library functions like fprintf() or fread().
+ *
+ * See your 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
+ */
+EXPORT_C 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 your 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
+ */
+EXPORT_C 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
+}
+
+/**
+ * g_utime:
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @utb: a pointer to a struct utimbuf.
+ *
+ * A wrapper for the POSIX utime() function. The utime() function
+ * sets the access and modification timestamps of a file.
+ *
+ * See your C library manual for more details about how utime() works
+ * on your system.
+ *
+ * Returns: 0 if the operation was successful, -1 if an error
+ * occurred
+ *
+ * Since: 2.18
+ */
+EXPORT_C int
+g_utime (const gchar *filename,
+ struct utimbuf *utb)
+{
+#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 = _wutime (wfilename, (struct _utimbuf*) utb);
+ save_errno = errno;
+
+ g_free (wfilename);
+
+ errno = save_errno;
+ return retval;
+#else
+ return utime (filename, utb);
+#endif
+}
+
+#define __G_STDIO_C__
+#include "galiasdef.c"