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-rw-r--r--c/src/lib/libbsp/arm/nds/libfat/source/fatdir.c122
1 files changed, 61 insertions, 61 deletions
diff --git a/c/src/lib/libbsp/arm/nds/libfat/source/fatdir.c b/c/src/lib/libbsp/arm/nds/libfat/source/fatdir.c
index 2a24ef4783..78a2b14f9e 100644
--- a/c/src/lib/libbsp/arm/nds/libfat/source/fatdir.c
+++ b/c/src/lib/libbsp/arm/nds/libfat/source/fatdir.c
@@ -1,11 +1,11 @@
/*
fatdir.c
-
- Functions used by the newlib disc stubs to interface with
+
+ Functions used by the newlib disc stubs to interface with
this library
Copyright (c) 2006 Michael "Chishm" Chisholm
-
+
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
@@ -30,16 +30,16 @@
2006-08-13 - Chishm
* Moved all externally visible directory related functions to fatdir
* Added _FAT_mkdir_r
-
+
2006-08-14 - Chishm
* Added directory iterator functions
2006-08-19 - Chishm
* Updated dirnext return values to return correctly
-
+
2006-10-01 - Chishm
* Now clears the whole cluster when creating a new directory, bug found by Hermes
-
+
2007-01-10 - Chishm
* Updated directory iterator functions for DevkitPro r20
*/
@@ -62,12 +62,12 @@
int _FAT_stat_r (struct _reent *r, const char *path, struct stat *st) {
PARTITION* partition = NULL;
-
+
DIR_ENTRY dirEntry;
-
+
// Get the partition this file is on
partition = _FAT_partition_getPartitionFromPath (path);
-
+
if (partition == NULL) {
r->_errno = ENODEV;
return -1;
@@ -87,10 +87,10 @@ int _FAT_stat_r (struct _reent *r, const char *path, struct stat *st) {
r->_errno = ENOENT;
return -1;
}
-
+
// Fill in the stat struct
_FAT_directory_entryStat (partition, &dirEntry, st);
-
+
return 0;
}
@@ -106,10 +106,10 @@ int _FAT_unlink_r (struct _reent *r, const char *path) {
u32 cluster;
bool nextEntry;
bool errorOccured = false;
-
+
// Get the partition this directory is on
partition = _FAT_partition_getPartitionFromPath (path);
-
+
if (partition == NULL) {
r->_errno = ENODEV;
return -1;
@@ -119,7 +119,7 @@ int _FAT_unlink_r (struct _reent *r, const char *path) {
if (partition->readOnly) {
r->_errno = EROFS;
return -1;
- }
+ }
// Move the path pointer to the start of the actual path
if (strchr (path, ':') != NULL) {
@@ -129,20 +129,20 @@ int _FAT_unlink_r (struct _reent *r, const char *path) {
r->_errno = EINVAL;
return -1;
}
-
+
// Search for the file on the disc
if (!_FAT_directory_entryFromPath (partition, &dirEntry, path, NULL)) {
r->_errno = ENOENT;
return -1;
}
-
+
cluster = _FAT_directory_entryGetCluster (dirEntry.entryData);
-
+
// If this is a directory, make sure it is empty
if (_FAT_directory_isDirectory (&dirEntry)) {
nextEntry = _FAT_directory_getFirstEntry (partition, &dirContents, cluster);
-
+
while (nextEntry) {
if (!_FAT_directory_isDot (&dirContents)) {
// The directory had something in it that isn't a reference to itself or it's parent
@@ -166,13 +166,13 @@ int _FAT_unlink_r (struct _reent *r, const char *path) {
r->_errno = EIO;
errorOccured = true;
}
-
+
// Flush any sectors in the disc cache
if (!_FAT_cache_flush(partition->cache)) {
r->_errno = EIO;
errorOccured = true;
}
-
+
if (errorOccured) {
return -1;
} else {
@@ -182,10 +182,10 @@ int _FAT_unlink_r (struct _reent *r, const char *path) {
int _FAT_chdir_r (struct _reent *r, const char *path) {
PARTITION* partition = NULL;
-
+
// Get the partition this directory is on
partition = _FAT_partition_getPartitionFromPath (path);
-
+
if (partition == NULL) {
r->_errno = ENODEV;
return -1;
@@ -199,7 +199,7 @@ int _FAT_chdir_r (struct _reent *r, const char *path) {
r->_errno = EINVAL;
return -1;
}
-
+
// Set the default device to match this one
if (!_FAT_partition_setDefaultPartition (partition)) {
r->_errno = ENOENT;
@@ -223,15 +223,15 @@ int _FAT_rename_r (struct _reent *r, const char *oldName, const char *newName) {
DIR_ENTRY newDirEntry;
const char *pathEnd;
u32 dirCluster;
-
+
// Get the partition this directory is on
partition = _FAT_partition_getPartitionFromPath (oldName);
-
+
if (partition == NULL) {
r->_errno = ENODEV;
return -1;
}
-
+
// Make sure the same partition is used for the old and new names
if (partition != _FAT_partition_getPartitionFromPath (newName)) {
r->_errno = EXDEV;
@@ -242,7 +242,7 @@ int _FAT_rename_r (struct _reent *r, const char *oldName, const char *newName) {
if (partition->readOnly) {
r->_errno = EROFS;
return -1;
- }
+ }
// Move the path pointer to the start of the actual path
if (strchr (oldName, ':') != NULL) {
@@ -265,7 +265,7 @@ int _FAT_rename_r (struct _reent *r, const char *oldName, const char *newName) {
r->_errno = ENOENT;
return -1;
}
-
+
// Make sure there is no existing file / directory with the new name
if (_FAT_directory_entryFromPath (partition, &newDirEntry, newName, NULL)) {
r->_errno = EEXIST;
@@ -273,7 +273,7 @@ int _FAT_rename_r (struct _reent *r, const char *oldName, const char *newName) {
}
// Create the new file entry
- // Get the directory it has to go in
+ // Get the directory it has to go in
pathEnd = strrchr (newName, DIR_SEPARATOR);
if (pathEnd == NULL) {
// No path was specified
@@ -294,22 +294,22 @@ int _FAT_rename_r (struct _reent *r, const char *oldName, const char *newName) {
// Copy the entry data
memcpy (&newDirEntry, &oldDirEntry, sizeof(DIR_ENTRY));
-
+
// Set the new name
strncpy (newDirEntry.filename, pathEnd, MAX_FILENAME_LENGTH - 1);
-
+
// Write the new entry
if (!_FAT_directory_addEntry (partition, &newDirEntry, dirCluster)) {
r->_errno = ENOSPC;
return -1;
}
-
+
// Remove the old entry
if (!_FAT_directory_removeEntry (partition, &oldDirEntry)) {
r->_errno = EIO;
return -1;
}
-
+
// Flush any sectors in the disc cache
if (!_FAT_cache_flush (partition->cache)) {
r->_errno = EIO;
@@ -326,9 +326,9 @@ int _FAT_mkdir_r (struct _reent *r, const char *path, int mode) {
const char* pathEnd;
u32 parentCluster, dirCluster;
u8 newEntryData[DIR_ENTRY_DATA_SIZE];
-
+
partition = _FAT_partition_getPartitionFromPath (path);
-
+
if (partition == NULL) {
r->_errno = ENODEV;
return -1;
@@ -342,23 +342,23 @@ int _FAT_mkdir_r (struct _reent *r, const char *path, int mode) {
r->_errno = EINVAL;
return -1;
}
-
+
// Search for the file/directory on the disc
fileExists = _FAT_directory_entryFromPath (partition, &dirEntry, path, NULL);
-
+
// Make sure it doesn't exist
if (fileExists) {
r->_errno = EEXIST;
return -1;
}
-
+
if (partition->readOnly) {
// We can't write to a read-only partition
r->_errno = EROFS;
return -1;
- }
-
- // Get the directory it has to go in
+ }
+
+ // Get the directory it has to go in
pathEnd = strrchr (path, DIR_SEPARATOR);
if (pathEnd == NULL) {
// No path was specified
@@ -379,15 +379,15 @@ int _FAT_mkdir_r (struct _reent *r, const char *path, int mode) {
// Create the entry data
strncpy (dirEntry.filename, pathEnd, MAX_FILENAME_LENGTH - 1);
memset (dirEntry.entryData, 0, DIR_ENTRY_DATA_SIZE);
-
+
// Set the creation time and date
dirEntry.entryData[DIR_ENTRY_cTime_ms] = 0;
u16_to_u8array (dirEntry.entryData, DIR_ENTRY_cTime, _FAT_filetime_getTimeFromRTC());
u16_to_u8array (dirEntry.entryData, DIR_ENTRY_cDate, _FAT_filetime_getDateFromRTC());
-
+
// Set the directory attribute
dirEntry.entryData[DIR_ENTRY_attributes] = ATTRIB_DIR;
-
+
// Get a cluster for the new directory
dirCluster = _FAT_fat_linkFreeClusterCleared (partition, CLUSTER_FREE);
if (dirCluster == CLUSTER_FREE) {
@@ -403,7 +403,7 @@ int _FAT_mkdir_r (struct _reent *r, const char *path, int mode) {
r->_errno = ENOSPC;
return -1;
}
-
+
// Create the dot entry within the directory
memset (newEntryData, 0, DIR_ENTRY_DATA_SIZE);
memset (newEntryData, ' ', 11);
@@ -411,19 +411,19 @@ int _FAT_mkdir_r (struct _reent *r, const char *path, int mode) {
newEntryData[DIR_ENTRY_attributes] = ATTRIB_DIR;
u16_to_u8array (newEntryData, DIR_ENTRY_cluster, dirCluster);
u16_to_u8array (newEntryData, DIR_ENTRY_clusterHigh, dirCluster >> 16);
-
+
// Write it to the directory, erasing that sector in the process
- _FAT_cache_eraseWritePartialSector ( partition->cache, newEntryData,
+ _FAT_cache_eraseWritePartialSector ( partition->cache, newEntryData,
_FAT_fat_clusterToSector (partition, dirCluster), 0, DIR_ENTRY_DATA_SIZE);
-
-
+
+
// Create the double dot entry within the directory
newEntryData[DIR_ENTRY_name + 1] = '.';
u16_to_u8array (newEntryData, DIR_ENTRY_cluster, parentCluster);
u16_to_u8array (newEntryData, DIR_ENTRY_clusterHigh, parentCluster >> 16);
// Write it to the directory
- _FAT_cache_writePartialSector ( partition->cache, newEntryData,
+ _FAT_cache_writePartialSector ( partition->cache, newEntryData,
_FAT_fat_clusterToSector (partition, dirCluster), DIR_ENTRY_DATA_SIZE, DIR_ENTRY_DATA_SIZE);
// Flush any sectors in the disc cache
@@ -439,7 +439,7 @@ DIR_ITER* _FAT_diropen_r(struct _reent *r, DIR_ITER *dirState, const char *path)
DIR_ENTRY dirEntry;
DIR_STATE_STRUCT* state = (DIR_STATE_STRUCT*) (dirState->dirStruct);
bool fileExists;
-
+
state->partition = _FAT_partition_getPartitionFromPath (path);
if (state->partition == NULL) {
@@ -457,12 +457,12 @@ DIR_ITER* _FAT_diropen_r(struct _reent *r, DIR_ITER *dirState, const char *path)
}
// Get the start cluster of the directory
fileExists = _FAT_directory_entryFromPath (state->partition, &dirEntry, path, NULL);
-
+
if (!fileExists) {
r->_errno = ENOENT;
return NULL;
}
-
+
// Make sure it is a directory
if (! _FAT_directory_isDirectory (&dirEntry)) {
r->_errno = ENOTDIR;
@@ -471,11 +471,11 @@ DIR_ITER* _FAT_diropen_r(struct _reent *r, DIR_ITER *dirState, const char *path)
// Save the start cluster for use when resetting the directory data
state->startCluster = _FAT_directory_entryGetCluster (dirEntry.entryData);
-
+
// Get the first entry for use with a call to dirnext
- state->validEntry =
+ state->validEntry =
_FAT_directory_getFirstEntry (state->partition, &(state->currentEntry), state->startCluster);
-
+
// We are now using this entry
state->inUse = true;
return (DIR_ITER*) state;
@@ -491,7 +491,7 @@ int _FAT_dirreset_r (struct _reent *r, DIR_ITER *dirState) {
}
// Get the first entry for use with a call to dirnext
- state->validEntry =
+ state->validEntry =
_FAT_directory_getFirstEntry (state->partition, &(state->currentEntry), state->startCluster);
return 0;
@@ -505,7 +505,7 @@ int _FAT_dirnext_r (struct _reent *r, DIR_ITER *dirState, char *filename, struct
r->_errno = EBADF;
return -1;
}
-
+
// Make sure there is another file to report on
if (! state->validEntry) {
r->_errno = ENOENT;
@@ -518,9 +518,9 @@ int _FAT_dirnext_r (struct _reent *r, DIR_ITER *dirState, char *filename, struct
if (filestat != NULL) {
_FAT_directory_entryStat (state->partition, &(state->currentEntry), filestat);
}
-
+
// Look for the next entry for use next time
- state->validEntry =
+ state->validEntry =
_FAT_directory_getNextEntry (state->partition, &(state->currentEntry));
return 0;
@@ -528,7 +528,7 @@ int _FAT_dirnext_r (struct _reent *r, DIR_ITER *dirState, char *filename, struct
int _FAT_dirclose_r (struct _reent *r, DIR_ITER *dirState) {
DIR_STATE_STRUCT* state = (DIR_STATE_STRUCT*) (dirState->dirStruct);
-
+
// We are no longer using this entry
state->inUse = false;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 12:06:16 +0000