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-rw-r--r--src/update_io.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/src/update_io.c b/src/update_io.c
new file mode 100644
index 000000000..887ebe2e5
--- /dev/null
+++ b/src/update_io.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h" /* must be first for large file support */
+#include "update_io.h"
+#include "mapper.h"
+#include "directory.h"
+
+#include <glib.h>
+
+#include <errno.h>
+#include <unistd.h>
+
+int
+stat_directory(const struct directory *directory, struct stat *st)
+{
+ char *path_fs = map_directory_fs(directory);
+ if (path_fs == NULL)
+ return -1;
+
+ int ret = stat(path_fs, st);
+ if (ret < 0)
+ g_warning("Failed to stat %s: %s", path_fs, g_strerror(errno));
+
+ g_free(path_fs);
+ return ret;
+}
+
+int
+stat_directory_child(const struct directory *parent, const char *name,
+ struct stat *st)
+{
+ char *path_fs = map_directory_child_fs(parent, name);
+ if (path_fs == NULL)
+ return -1;
+
+ int ret = stat(path_fs, st);
+ if (ret < 0)
+ g_warning("Failed to stat %s: %s", path_fs, g_strerror(errno));
+
+ g_free(path_fs);
+ return ret;
+}
+
+bool
+directory_exists(const struct directory *directory)
+{
+ char *path_fs = map_directory_fs(directory);
+ if (path_fs == NULL)
+ /* invalid path: cannot exist */
+ return false;
+
+ GFileTest test = directory->device == DEVICE_INARCHIVE ||
+ directory->device == DEVICE_CONTAINER
+ ? G_FILE_TEST_IS_REGULAR
+ : G_FILE_TEST_IS_DIR;
+
+ bool exists = g_file_test(path_fs, test);
+ g_free(path_fs);
+
+ return exists;
+}
+
+bool
+directory_child_is_regular(const struct directory *directory,
+ const char *name_utf8)
+{
+ char *path_fs = map_directory_child_fs(directory, name_utf8);
+ if (path_fs == NULL)
+ return false;
+
+ struct stat st;
+ bool is_regular = stat(path_fs, &st) == 0 && S_ISREG(st.st_mode);
+ g_free(path_fs);
+
+ return is_regular;
+}
+
+bool
+directory_child_access(const struct directory *directory,
+ const char *name, int mode)
+{
+#ifdef WIN32
+ /* access() is useless on WIN32 */
+ (void)directory;
+ (void)name;
+ (void)mode;
+ return true;
+#else
+ char *path = map_directory_child_fs(directory, name);
+ if (path == NULL)
+ /* something went wrong, but that isn't a permission
+ problem */
+ return true;
+
+ bool success = access(path, mode) == 0 || errno != EACCES;
+ g_free(path);
+ return success;
+#endif
+}