author | hgs |
Tue, 02 Nov 2010 19:23:22 +0530 | |
changeset 79 | 564bc7b7ad27 |
parent 18 | 47c74d1534e1 |
permissions | -rw-r--r-- |
18
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/* GLIB - Library of useful routines for C programming |
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
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* |
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* gdir.c: Simplified wrapper around the DIRENT functions. |
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* |
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* Copyright 2001 Hans Breuer |
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* Copyright 2004 Tor Lillqvist |
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* Portions copyright (c) 2006-2009 Nokia Corporation. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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#include "config.h" |
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|
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#include <errno.h> |
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#include <string.h> |
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#include <stdio.h> |
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#include <sys/stat.h> |
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#ifdef HAVE_DIRENT_H |
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#include <sys/types.h> |
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#include <dirent.h> |
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#endif |
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#include "glib.h" |
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#include "gdir.h" |
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#include "glibintl.h" |
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#include "galias.h" |
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#if defined (_MSC_VER) && !defined (HAVE_DIRENT_H) |
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#include "../build/win32/dirent/dirent.h" |
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#include "../build/win32/dirent/wdirent.c" |
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#endif |
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struct _GDir |
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{ |
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#ifdef G_OS_WIN32 |
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_WDIR *wdirp; |
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#else |
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DIR *dirp; |
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#endif |
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#ifdef G_OS_WIN32 |
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gchar utf8_buf[FILENAME_MAX*4]; |
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#endif |
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}; |
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|
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/** |
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* g_dir_open: |
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* @path: the path to the directory you are interested in. On Unix |
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* in the on-disk encoding. On Windows in UTF-8 |
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* @flags: Currently must be set to 0. Reserved for future use. |
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* @error: return location for a #GError, or %NULL. |
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* If non-%NULL, an error will be set if and only if |
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* g_dir_open() fails. |
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* |
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* Opens a directory for reading. The names of the files in the |
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* directory can then be retrieved using g_dir_read_name(). |
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* |
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* Return value: a newly allocated #GDir on success, %NULL on failure. |
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* If non-%NULL, you must free the result with g_dir_close() |
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* when you are finished with it. |
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**/ |
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EXPORT_C GDir * |
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g_dir_open (const gchar *path, |
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guint flags, |
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GError **error) |
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{ |
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GDir *dir; |
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#ifdef G_OS_WIN32 |
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wchar_t *wpath; |
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#else |
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gchar *utf8_path; |
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#endif |
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g_return_val_if_fail (path != NULL, NULL); |
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#ifdef G_OS_WIN32 |
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wpath = g_utf8_to_utf16 (path, -1, NULL, NULL, error); |
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if (wpath == NULL) |
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return NULL; |
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dir = g_new (GDir, 1); |
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dir->wdirp = _wopendir (wpath); |
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g_free (wpath); |
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if (dir->wdirp) |
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return dir; |
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105 |
|
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106 |
/* error case */ |
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107 |
|
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108 |
g_set_error (error, |
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G_FILE_ERROR, |
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g_file_error_from_errno (errno), |
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_("Error opening directory '%s': %s"), |
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path, g_strerror (errno)); |
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113 |
|
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g_free (dir); |
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115 |
|
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return NULL; |
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#else |
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dir = g_new (GDir, 1); |
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119 |
|
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dir->dirp = opendir (path); |
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121 |
|
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if (dir->dirp) |
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return dir; |
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124 |
|
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125 |
/* error case */ |
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utf8_path = g_filename_to_utf8 (path, -1, |
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NULL, NULL, NULL); |
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g_set_error (error, |
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G_FILE_ERROR, |
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g_file_error_from_errno (errno), |
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_("Error opening directory '%s': %s"), |
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utf8_path, g_strerror (errno)); |
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133 |
|
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g_free (utf8_path); |
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g_free (dir); |
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136 |
|
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return NULL; |
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138 |
#endif |
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139 |
} |
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140 |
|
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#if defined (G_OS_WIN32) && !defined (_WIN64) |
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142 |
|
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/* The above function actually is called g_dir_open_utf8, and it's |
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* that what applications compiled with this GLib version will |
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* use. |
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146 |
*/ |
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147 |
|
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148 |
#undef g_dir_open |
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149 |
|
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150 |
/* Binary compatibility version. Not for newly compiled code. */ |
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151 |
|
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152 |
GDir * |
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153 |
g_dir_open (const gchar *path, |
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154 |
guint flags, |
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155 |
GError **error) |
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156 |
{ |
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gchar *utf8_path = g_locale_to_utf8 (path, -1, NULL, NULL, error); |
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GDir *retval; |
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159 |
|
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if (utf8_path == NULL) |
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161 |
return NULL; |
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162 |
|
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163 |
retval = g_dir_open_utf8 (utf8_path, flags, error); |
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164 |
|
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g_free (utf8_path); |
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166 |
|
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167 |
return retval; |
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168 |
} |
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169 |
#endif |
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170 |
|
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171 |
/** |
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172 |
* g_dir_read_name: |
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* @dir: a #GDir* created by g_dir_open() |
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174 |
* |
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* Retrieves the name of the next entry in the directory. The '.' and |
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176 |
* '..' entries are omitted. On Windows, the returned name is in |
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* UTF-8. On Unix, it is in the on-disk encoding. |
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178 |
* |
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* Return value: The entry's name or %NULL if there are no |
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* more entries. The return value is owned by GLib and |
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* must not be modified or freed. |
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182 |
**/ |
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183 |
EXPORT_C G_CONST_RETURN gchar* |
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184 |
g_dir_read_name (GDir *dir) |
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185 |
{ |
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186 |
#ifdef G_OS_WIN32 |
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187 |
gchar *utf8_name; |
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188 |
struct _wdirent *wentry; |
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189 |
#else |
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struct dirent *entry; |
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191 |
#endif |
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192 |
|
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193 |
g_return_val_if_fail (dir != NULL, NULL); |
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194 |
|
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195 |
#ifdef G_OS_WIN32 |
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196 |
while (1) |
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197 |
{ |
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198 |
wentry = _wreaddir (dir->wdirp); |
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199 |
while (wentry |
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200 |
&& (0 == wcscmp (wentry->d_name, L".") || |
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201 |
0 == wcscmp (wentry->d_name, L".."))) |
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wentry = _wreaddir (dir->wdirp); |
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203 |
|
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if (wentry == NULL) |
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return NULL; |
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206 |
|
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utf8_name = g_utf16_to_utf8 (wentry->d_name, -1, NULL, NULL, NULL); |
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208 |
|
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if (utf8_name == NULL) |
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continue; /* Huh, impossible? Skip it anyway */ |
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211 |
|
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strcpy (dir->utf8_buf, utf8_name); |
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g_free (utf8_name); |
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|
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return dir->utf8_buf; |
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} |
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#else |
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entry = readdir (dir->dirp); |
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while (entry |
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&& (0 == strcmp (entry->d_name, ".") || |
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0 == strcmp (entry->d_name, ".."))) |
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entry = readdir (dir->dirp); |
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|
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if (entry) |
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return entry->d_name; |
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else |
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return NULL; |
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#endif |
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} |
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230 |
|
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#if defined (G_OS_WIN32) && !defined (_WIN64) |
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232 |
|
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/* Ditto for g_dir_read_name */ |
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234 |
|
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#undef g_dir_read_name |
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|
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/* Binary compatibility version. Not for newly compiled code. */ |
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|
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G_CONST_RETURN gchar* |
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g_dir_read_name (GDir *dir) |
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{ |
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while (1) |
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{ |
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const gchar *utf8_name = g_dir_read_name_utf8 (dir); |
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gchar *retval; |
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|
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if (utf8_name == NULL) |
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return NULL; |
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|
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retval = g_locale_from_utf8 (utf8_name, -1, NULL, NULL, NULL); |
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251 |
|
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if (retval != NULL) |
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{ |
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strcpy (dir->utf8_buf, retval); |
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g_free (retval); |
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|
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return dir->utf8_buf; |
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} |
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} |
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} |
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|
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#endif |
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|
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/** |
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* g_dir_rewind: |
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* @dir: a #GDir* created by g_dir_open() |
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* |
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* Resets the given directory. The next call to g_dir_read_name() |
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* will return the first entry again. |
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**/ |
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EXPORT_C void |
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g_dir_rewind (GDir *dir) |
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{ |
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g_return_if_fail (dir != NULL); |
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|
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#ifdef G_OS_WIN32 |
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_wrewinddir (dir->wdirp); |
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#else |
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rewinddir (dir->dirp); |
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#endif |
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} |
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|
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/** |
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* g_dir_close: |
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* @dir: a #GDir* created by g_dir_open() |
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* |
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* Closes the directory and deallocates all related resources. |
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**/ |
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EXPORT_C void |
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g_dir_close (GDir *dir) |
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{ |
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g_return_if_fail (dir != NULL); |
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|
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#ifdef G_OS_WIN32 |
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_wclosedir (dir->wdirp); |
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#else |
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closedir (dir->dirp); |
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#endif |
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g_free (dir); |
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} |
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|
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#define __G_DIR_C__ |
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#include "galiasdef.c" |