diff options
Diffstat (limited to 'sdk-modifications/libsrc/fs/fatdir_ex.c')
| -rw-r--r-- | sdk-modifications/libsrc/fs/fatdir_ex.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/sdk-modifications/libsrc/fs/fatdir_ex.c b/sdk-modifications/libsrc/fs/fatdir_ex.c new file mode 100644 index 0000000..b773255 --- /dev/null +++ b/sdk-modifications/libsrc/fs/fatdir_ex.c @@ -0,0 +1,183 @@ +#include <string.h> +
+#include <errno.h>
+ +#include <ctype.h>
+ +#include <unistd.h>
+ +#include <sys/dir.h> +
+ +#include "fatdir.h"
+ +#include "fatdir_ex.h"
+ + +#include "cache.h" +
+#include "file_allocation_table.h" +
+#include "partition.h"
+ +#include "directory.h"
+ +#include "bit_ops.h"
+ +#include "filetime.h"
+ +#include "unicode/unicode.h"
+
+int dirnextl (DIR_ITER *dirState, char *filename, char *longFilename, struct stat *filestat)
+{
+ DIR_STATE_STRUCT* state = (DIR_STATE_STRUCT*) (dirState->dirStruct); +
+
+ // Make sure we are still using this entry +
+ if (!state->inUse) { +
+ errno = EBADF;
+ return -1; +
+ } +
+
+ // Make sure there is another file to report on +
+ if (! state->validEntry) {
+ errno = ENOENT; +
+ return -1; +
+ } + +
+ // Get the filename +
+ strncpy (filename, state->currentEntry.d_name, MAX_FILENAME_LENGTH); +
+ // Get long filename
+ _FAT_unicode_unicode_to_local( state->currentEntry.unicodeFilename, (u8 *)longFilename );
+
+ + // Get the stats, if requested +
+ if (filestat != NULL) { +
+ _FAT_directory_entryStat (state->partition, &(state->currentEntry), filestat); +
+ } +
+
+ // Look for the next entry for use next time +
+ state->validEntry = +_FAT_directory_getNextEntry (state->partition, &(state->currentEntry)); + +
+ return 0;
+}
+
+int renamex( const char *oldName, const char *newName )
+{
+ PARTITION* partition = NULL;
+ DIR_ENTRY oldDirEntry;
+ DIR_ENTRY newDirEntry;
+ const char *pathEnd;
+ u32 dirCluster;
+
+ // Get the partition this directory is on
+ partition = _FAT_partition_getPartitionFromPath (oldName);
+
+ if (partition == NULL) {
+ errno = ENODEV;
+ return -1;
+ }
+
+ // Make sure the same partition is used for the old and new names
+ if (partition != _FAT_partition_getPartitionFromPath (newName)) {
+ errno = EXDEV;
+ return -1;
+ }
+
+ // Make sure we aren't trying to write to a read-only disc
+ if (partition->readOnly) {
+ errno = EROFS;
+ return -1;
+ }
+
+ // Move the path pointer to the start of the actual path
+ if (strchr (oldName, ':') != NULL) {
+ oldName = strchr (oldName, ':') + 1;
+ }
+ if (strchr (oldName, ':') != NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+ if (strchr (newName, ':') != NULL) {
+ newName = strchr (newName, ':') + 1;
+ }
+ if (strchr (newName, ':') != NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ // Search for the file on the disc
+ if (!_FAT_directory_entryFromPath (partition, &oldDirEntry, oldName, NULL)) {
+ errno = ENOENT;
+ return -1;
+ }
+
+ // Make sure there is no existing file / directory with the new name
+ if (_FAT_directory_entryFromPath (partition, &newDirEntry, newName, NULL)) {
+ errno = EEXIST;
+ return -1;
+ }
+
+ // Create the new file entry
+ // Get the directory it has to go in
+ pathEnd = strrchr (newName, DIR_SEPARATOR);
+ if (pathEnd == NULL) {
+ // No path was specified
+ dirCluster = partition->cwdCluster;
+ pathEnd = newName;
+ } else {
+ // Path was specified -- get the right dirCluster
+ // Recycling newDirEntry, since it needs to be recreated anyway
+ if (!_FAT_directory_entryFromPath (partition, &newDirEntry, newName, pathEnd) ||
+ !_FAT_directory_isDirectory(&newDirEntry)) {
+ errno = ENOTDIR;
+ return -1;
+ }
+ dirCluster = _FAT_directory_entryGetCluster (newDirEntry.entryData);
+ // Move the pathEnd past the last DIR_SEPARATOR
+ pathEnd += 1;
+ }
+
+ // Copy the entry data
+ memcpy (&newDirEntry, &oldDirEntry, sizeof(DIR_ENTRY));
+
+ // Set the new name
+ strncpy (newDirEntry.d_name, pathEnd, MAX_FILENAME_LENGTH - 1);
+
+ // Write the new entry
+ if (!_FAT_directory_addEntry (partition, &newDirEntry, dirCluster)) {
+ errno = ENOSPC;
+ return -1;
+ }
+
+ // Remove the old entry
+ if (!_FAT_directory_removeEntry (partition, &oldDirEntry)) {
+ errno = EIO;
+ return -1;
+ }
+
+ // Flush any sectors in the disc cache
+ if (!_FAT_cache_flush (partition->cache)) {
+ errno = EIO;
+ return -1;
+ }
+
+ return 0;
+}
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