From 8693ae1bd880a758eb2efec4fccd32f89593855d Mon Sep 17 00:00:00 2001
From: Nebuleon Fumika
Date: Sun, 3 Feb 2013 04:19:11 -0500
Subject: Add SDK modifications by BassAceGold as of 2011-04-14, as well as
 modified DMA functions as of 2013-01-29.

---
 sdk-modifications/libsrc/fs/fatdir_ex.c | 183 ++++++++++++++++++++++++++++++++
 1 file changed, 183 insertions(+)
 create mode 100644 sdk-modifications/libsrc/fs/fatdir_ex.c

(limited to 'sdk-modifications/libsrc/fs/fatdir_ex.c')

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;
+}
-- 
cgit v1.2.3