From 0bd0badbf2cced1a6f156d995ec19cf773dd12a4 Mon Sep 17 00:00:00 2001 From: Robin Watts Date: Sun, 30 Nov 2008 02:08:09 +0000 Subject: Fix NDS warning that should really be an error. Returning nothing from a non void function should be an error in any sane compiler... svn-id: r35176 --- backends/platform/ds/arm9/source/fat/gba_nds_fat.c | 512 ++++++++++----------- 1 file changed, 256 insertions(+), 256 deletions(-) (limited to 'backends/platform') diff --git a/backends/platform/ds/arm9/source/fat/gba_nds_fat.c b/backends/platform/ds/arm9/source/fat/gba_nds_fat.c index b5fdd665df..b70d9e7b99 100644 --- a/backends/platform/ds/arm9/source/fat/gba_nds_fat.c +++ b/backends/platform/ds/arm9/source/fat/gba_nds_fat.c @@ -42,7 +42,7 @@ //--------------------------------------------------------------- // Appropriate placement of CF functions and data #ifdef NDS - #define _VARS_IN_RAM + #define _VARS_IN_RAM #else #define _VARS_IN_RAM __attribute__ ((section (".sbss"))) #endif @@ -74,7 +74,7 @@ #ifdef __GNUC__ #define __PACKED __attribute__ ((__packed__)) #else - #define __PACKED + #define __PACKED #pragma pack(1) #endif @@ -98,7 +98,7 @@ typedef struct u32 numSectors; union // Different types of extended BIOS Parameter Block for FAT16 and FAT32 { - struct + struct { // Ext BIOS Parameter Block for FAT16 u8 driveNumber; @@ -110,7 +110,7 @@ typedef struct // Bootcode u8 bootCode[448]; } __PACKED fat16; - struct + struct { // FAT32 extended block u32 sectorsPerFAT32; @@ -158,7 +158,7 @@ typedef struct typedef struct { u8 ordinal; // Position within LFN - u16 char0; + u16 char0; u16 char1; u16 char2; u16 char3; @@ -177,7 +177,7 @@ typedef struct u16 char12; } __PACKED DIR_ENT_LFN; -const char lfn_offset_table[13]={0x01,0x03,0x05,0x07,0x09,0x0E,0x10,0x12,0x14,0x16,0x18,0x1C,0x1E}; +const char lfn_offset_table[13]={0x01,0x03,0x05,0x07,0x09,0x0E,0x10,0x12,0x14,0x16,0x18,0x1C,0x1E}; // End of packed structs #ifdef __PACKED @@ -190,7 +190,7 @@ const char lfn_offset_table[13]={0x01,0x03,0x05,0x07,0x09,0x0E,0x10,0x12,0x14,0x //----------------------------------------------------------------- // Global Variables -// _VARS_IN_RAM variables are stored in the largest section of WRAM +// _VARS_IN_RAM variables are stored in the largest section of WRAM // available: IWRAM on NDS ARM7, EWRAM on NDS ARM9 and GBA // Files @@ -305,7 +305,7 @@ u16 getRTCtoFileTime (void) u16 getRTCtoFileDate (void) { #ifdef NDS - return ( + return ( ( ((IPC->rtc_year + 20) & 0x7F) <<9) | ( (IPC->rtc_month & 0xF) << 5) | (IPC->rtc_day & 0x1F) ); @@ -330,13 +330,13 @@ u32 FAT_NextCluster(u32 cluster) u32 nextCluster = CLUSTER_FREE; u32 sector; int offset; - - switch (filesysType) + + switch (filesysType) { case FS_UNKNOWN: nextCluster = CLUSTER_FREE; break; - + case FS_FAT12: sector = filesysFAT + (((cluster * 3) / 2) / BYTE_PER_READ); offset = ((cluster * 3) / 2) % BYTE_PER_READ; @@ -351,32 +351,32 @@ u32 FAT_NextCluster(u32 cluster) nextCluster = ((u8*)fatBuffer)[offset]; offset++; - + if (offset >= BYTE_PER_READ) { offset = 0; fatBufferCurSector++; disc_ReadSector(fatBufferCurSector, fatBuffer); } - + nextCluster |= (((u8*)fatBuffer)[offset]) << 8; - + if (cluster & 0x01) { nextCluster = nextCluster >> 4; } else { nextCluster &= 0x0FFF; } - + if (nextCluster >= 0x0FF7) { nextCluster = CLUSTER_EOF; } break; - + case FS_FAT16: sector = filesysFAT + ((cluster << 1) / BYTE_PER_READ); offset = cluster % (BYTE_PER_READ >> 1); - + // If FAT buffer contains wrong sector if (sector != fatBufferCurSector) { @@ -387,17 +387,17 @@ u32 FAT_NextCluster(u32 cluster) // read the nextCluster value nextCluster = ((u16*)fatBuffer)[offset]; - + if (nextCluster >= 0xFFF7) { nextCluster = CLUSTER_EOF; } break; - + case FS_FAT32: sector = filesysFAT + ((cluster << 2) / BYTE_PER_READ); offset = cluster % (BYTE_PER_READ >> 2); - + // If FAT buffer contains wrong sector if (sector != fatBufferCurSector) { @@ -408,18 +408,18 @@ u32 FAT_NextCluster(u32 cluster) // read the nextCluster value nextCluster = (((u32*)fatBuffer)[offset]) & 0x0FFFFFFF; - + if (nextCluster >= 0x0FFFFFF7) { nextCluster = CLUSTER_EOF; } break; - + default: nextCluster = CLUSTER_FREE; break; } - + return nextCluster; } @@ -437,13 +437,13 @@ bool FAT_WriteFatEntry (u32 cluster, u32 value) { return false; } - - switch (filesysType) + + switch (filesysType) { case FS_UNKNOWN: return false; break; - + case FS_FAT12: sector = filesysFAT + (((cluster * 3) / 2) / BYTE_PER_READ); offset = ((cluster * 3) / 2) % BYTE_PER_READ; @@ -465,32 +465,32 @@ bool FAT_WriteFatEntry (u32 cluster, u32 value) offset = 0; // write the buffer back to disc disc_WriteSector(fatBufferCurSector, fatBuffer); - // read the next sector + // read the next sector fatBufferCurSector++; disc_ReadSector(fatBufferCurSector, fatBuffer); } - + ((u8*)fatBuffer)[offset] = (value & 0x0FF0) >> 4; } else { - + ((u8*)fatBuffer)[offset] = value & 0xFF; - + offset++; if (offset >= BYTE_PER_READ) { offset = 0; // write the buffer back to disc disc_WriteSector(fatBufferCurSector, fatBuffer); - // read the next sector + // read the next sector fatBufferCurSector++; disc_ReadSector(fatBufferCurSector, fatBuffer); } - + ((u8*)fatBuffer)[offset] = (((u8*)fatBuffer)[offset] & 0xF0) | ((value >> 8) & 0x0F); } break; - + case FS_FAT16: sector = filesysFAT + ((cluster << 1) / BYTE_PER_READ); offset = cluster % (BYTE_PER_READ >> 1); @@ -507,11 +507,11 @@ bool FAT_WriteFatEntry (u32 cluster, u32 value) ((u16*)fatBuffer)[offset] = (value & 0xFFFF); break; - + case FS_FAT32: sector = filesysFAT + ((cluster << 2) / BYTE_PER_READ); offset = cluster % (BYTE_PER_READ >> 2); - + // If FAT buffer contains wrong sector if (sector != fatBufferCurSector) { @@ -524,15 +524,15 @@ bool FAT_WriteFatEntry (u32 cluster, u32 value) (((u32*)fatBuffer)[offset]) = value; break; - + default: return false; break; } - + // write the buffer back to disc disc_WriteSector(fatBufferCurSector, fatBuffer); - + return true; } #endif @@ -540,8 +540,8 @@ bool FAT_WriteFatEntry (u32 cluster, u32 value) #ifdef CAN_WRITE_TO_DISC /*----------------------------------------------------------------- FAT_ReadWriteFatEntryBuffered -Internal function - writes FAT information about a cluster to a - buffer that should then be flushed to disc using +Internal function - writes FAT information about a cluster to a + buffer that should then be flushed to disc using FAT_WriteFatEntryFlushBuffer() Call FAT_WriteFatEntry first so as not to ruin the disc. Also returns the entry being replaced @@ -555,13 +555,13 @@ u32 FAT_ReadWriteFatEntryBuffered (u32 cluster, u32 value) if ((cluster < 0x0002) || (cluster > fatLastCluster)) return CLUSTER_FREE; - - switch (filesysType) + + switch (filesysType) { case FS_UNKNOWN: oldValue = CLUSTER_FREE; break; - + case FS_FAT12: sector = filesysFAT + (((cluster * 3) / 2) / BYTE_PER_READ); offset = ((cluster * 3) / 2) % BYTE_PER_READ; @@ -587,40 +587,40 @@ u32 FAT_ReadWriteFatEntryBuffered (u32 cluster, u32 value) offset = 0; // write the buffer back to disc disc_WriteSector(fatBufferCurSector, fatBuffer); - // read the next sector + // read the next sector fatBufferCurSector++; disc_ReadSector(fatBufferCurSector, fatBuffer); } - + oldValue |= ((((u8*)fatBuffer)[offset]) << 4) & 0x0FF0; ((u8*)fatBuffer)[offset] = (value & 0x0FF0) >> 4; } else { - + oldValue = ((u8*)fatBuffer)[offset] & 0xFF; ((u8*)fatBuffer)[offset] = value & 0xFF; - + offset++; if (offset >= BYTE_PER_READ) { offset = 0; // write the buffer back to disc disc_WriteSector(fatBufferCurSector, fatBuffer); - // read the next sector + // read the next sector fatBufferCurSector++; disc_ReadSector(fatBufferCurSector, fatBuffer); } - + oldValue |= (((u8*)fatBuffer)[offset] & 0x0F) << 8; ((u8*)fatBuffer)[offset] = (((u8*)fatBuffer)[offset] & 0xF0) | ((value >> 8) & 0x0F); } - if (oldValue >= 0x0FF7) + if (oldValue >= 0x0FF7) { oldValue = CLUSTER_EOF; } break; - + case FS_FAT16: sector = filesysFAT + ((cluster << 1) / BYTE_PER_READ); offset = cluster % (BYTE_PER_READ >> 1); @@ -634,23 +634,23 @@ u32 FAT_ReadWriteFatEntryBuffered (u32 cluster, u32 value) // Load correct sector to buffer fatBufferCurSector = sector; disc_ReadSector(fatBufferCurSector, fatBuffer); - } + } // write the value to the FAT buffer oldValue = ((u16*)fatBuffer)[offset]; ((u16*)fatBuffer)[offset] = value; - if (oldValue >= 0xFFF7) + if (oldValue >= 0xFFF7) { oldValue = CLUSTER_EOF; } break; - + case FS_FAT32: sector = filesysFAT + ((cluster << 2) / BYTE_PER_READ); offset = cluster % (BYTE_PER_READ >> 2); - + // If FAT buffer contains wrong sector if (sector != fatBufferCurSector) { @@ -666,18 +666,18 @@ u32 FAT_ReadWriteFatEntryBuffered (u32 cluster, u32 value) oldValue = ((u32*)fatBuffer)[offset]; ((u32*)fatBuffer)[offset] = value; - if (oldValue >= 0x0FFFFFF7) + if (oldValue >= 0x0FFFFFF7) { oldValue = CLUSTER_EOF; } break; - + default: oldValue = CLUSTER_FREE; break; } - + return oldValue; } #endif @@ -727,7 +727,7 @@ u32 FAT_FirstFreeCluster(void) /*----------------------------------------------------------------- FAT_LinkFreeCluster Internal function - gets the first available free cluster, sets it -to end of file, links the input cluster to it then returns the +to end of file, links the input cluster to it then returns the cluster number -----------------------------------------------------------------*/ u32 FAT_LinkFreeCluster(u32 cluster) @@ -746,7 +746,7 @@ u32 FAT_LinkFreeCluster(u32 cluster) { return curLink; // Return the current link - don't allocate a new one } - + // Get a free cluster firstFree = FAT_FirstFreeCluster(); @@ -777,7 +777,7 @@ Internal function - frees any cluster used by a file bool FAT_ClearLinks (u32 cluster) { u32 nextCluster; - + if ((cluster < 0x0002) || (cluster > fatLastCluster)) return false; @@ -793,7 +793,7 @@ bool FAT_ClearLinks (u32 cluster) while ((cluster != CLUSTER_EOF) && (cluster != CLUSTER_FREE)) { cluster = FAT_ReadWriteFatEntryBuffered (cluster, CLUSTER_FREE); - } + } // Flush fat write buffer FAT_WriteFatEntryFlushBuffer (); @@ -814,7 +814,7 @@ bool FAT_InitFiles (void) int i; int bootSector; BOOT_SEC* bootSec; - + if (!disc_Init()) { return (false); @@ -830,7 +830,7 @@ bool FAT_InitFiles (void) return false; }*/ - + // Check if there is a FAT string, which indicates this is a boot sector if ((globalBuffer[0x36] == 'F') && (globalBuffer[0x37] == 'A') && (globalBuffer[0x38] == 'T')) @@ -848,9 +848,9 @@ bool FAT_InitFiles (void) // First check for an active partition for (i=0x1BE; (i < 0x1FE) && (globalBuffer[i] != 0x80); i+= 0x10); // If it didn't find an active partition, search for any valid partition - if (i == 0x1FE) + if (i == 0x1FE) for (i=0x1BE; (i < 0x1FE) && (globalBuffer[i+0x04] == 0x00); i+= 0x10); - + // Go to first valid partition if ( i != 0x1FE) // Make sure it found a partition { @@ -865,7 +865,7 @@ bool FAT_InitFiles (void) if (!disc_ReadSector (bootSector, bootSec)) { return false; } - + // Store required information about the file system if (bootSec->sectorsPerFAT != 0) { @@ -875,7 +875,7 @@ bool FAT_InitFiles (void) { filesysSecPerFAT = bootSec->extBlock.fat32.sectorsPerFAT32; } - + if (bootSec->numSectorsSmall != 0) { filesysNumSec = bootSec->numSectorsSmall; @@ -987,7 +987,7 @@ Return the file info structure of the next valid file entry u32 dirCluster: IN cluster of subdirectory table int entry: IN the desired file entry int origin IN: relative position of the entry -DIR_ENT return OUT: desired dirEntry. First char will be FILE_FREE if +DIR_ENT return OUT: desired dirEntry. First char will be FILE_FREE if the entry does not exist. -----------------------------------------------------------------*/ DIR_ENT FAT_GetDirEntry ( u32 dirCluster, int entry, int origin) @@ -1011,8 +1011,8 @@ DIR_ENT FAT_GetDirEntry ( u32 dirCluster, int entry, int origin) { return (dir); } - - switch (origin) + + switch (origin) { case SEEK_SET: wrkDirCluster = dirCluster; @@ -1022,7 +1022,7 @@ DIR_ENT FAT_GetDirEntry ( u32 dirCluster, int entry, int origin) case SEEK_CUR: // Don't change anything break; case SEEK_END: // Find entry signifying end of directory - // Subtraction will never reach 0, so it keeps going + // Subtraction will never reach 0, so it keeps going // until reaches end of directory wrkDirCluster = dirCluster; wrkDirSector = 0; @@ -1055,7 +1055,7 @@ DIR_ENT FAT_GetDirEntry ( u32 dirCluster, int entry, int origin) { notFound = true; } - firstSector = FAT_ClustToSect(wrkDirCluster); + firstSector = FAT_ClustToSect(wrkDirCluster); } else if ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER) && (wrkDirSector == (filesysData - filesysRootDir))) { @@ -1082,7 +1082,7 @@ DIR_ENT FAT_GetDirEntry ( u32 dirCluster, int entry, int origin) lfnName[0] = '\0'; } } - if (entry == 0) + if (entry == 0) { if (!lfnExists) { @@ -1128,7 +1128,7 @@ DIR_ENT FAT_GetDirEntry ( u32 dirCluster, int entry, int origin) } } } while (!found && !notFound); - + // If no file is found, return FILE_FREE if (notFound) { @@ -1141,7 +1141,7 @@ DIR_ENT FAT_GetDirEntry ( u32 dirCluster, int entry, int origin) /*----------------------------------------------------------------- FAT_GetLongFilename -Get the long name of the last file or directory retrived with +Get the long name of the last file or directory retrived with GetDirEntry. Also works for FindFirstFile and FindNextFile. If a long name doesn't exist, it returns the short name instead. @@ -1156,14 +1156,14 @@ bool FAT_GetLongFilename (char* filename) strncpy (filename, lfnName, MAX_FILENAME_LENGTH - 1); filename[MAX_FILENAME_LENGTH - 1] = '\0'; - + return true; } /*----------------------------------------------------------------- FAT_GetFilename -Get the alias (short name) of the file or directory stored in +Get the alias (short name) of the file or directory stored in dirEntry DIR_ENT dirEntry: IN a valid directory table entry char* alias OUT: will be filled with the alias (short filename), @@ -1192,7 +1192,7 @@ bool FAT_GetFilename (DIR_ENT dirEntry, char* alias) } } else - { + { // Copy the filename from the dirEntry to the string for (i = 0; (i < 8) && (dirEntry.name[i] != ' '); i++) { @@ -1230,7 +1230,7 @@ bool FAT_GetAlias (char* alias) } // Read in the last accessed directory entry disc_ReadSector ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector, globalBuffer); - + return FAT_GetFilename (((DIR_ENT*)globalBuffer)[wrkDirOffset], alias); } @@ -1244,7 +1244,7 @@ u32 FAT_GetFileSize (void) { // Read in the last accessed directory entry disc_ReadSector ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector, globalBuffer); - + return ((DIR_ENT*)globalBuffer)[wrkDirOffset].fileSize; } @@ -1257,7 +1257,7 @@ u32 FAT_GetFileCluster (void) { // Read in the last accessed directory entry disc_ReadSector ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector, globalBuffer); - + return (((DIR_ENT*)globalBuffer)[wrkDirOffset].startCluster) | (((DIR_ENT*)globalBuffer)[wrkDirOffset].startClusterHigh << 16); } @@ -1270,7 +1270,7 @@ u8 FAT_GetFileAttributes (void) { // Read in the last accessed directory entry disc_ReadSector ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector, globalBuffer); - + return ((DIR_ENT*)globalBuffer)[wrkDirOffset].attrib; } @@ -1294,7 +1294,7 @@ u8 FAT_SetFileAttributes (const char* filename, u8 attributes, u8 mask) disc_ReadSector ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector, globalBuffer); ((DIR_ENT*)globalBuffer)[wrkDirOffset].attrib = (((DIR_ENT*)globalBuffer)[wrkDirOffset].attrib & ~(mask & 0x27)) | (attributes & 0x27); // 0x27 is he settable attributes - + disc_WriteSector ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector, globalBuffer); return ((DIR_ENT*)globalBuffer)[wrkDirOffset].attrib; @@ -1305,7 +1305,7 @@ u8 FAT_SetFileAttributes (const char* filename, u8 attributes, u8 mask) time_t FAT_FileTimeToCTime (u16 fileTime, u16 fileDate) { struct tm timeInfo; - + timeInfo.tm_year = (fileDate >> 9) + 80; // years since midnight January 1970 timeInfo.tm_mon = ((fileDate >> 5) & 0xf) - 1; // Months since january timeInfo.tm_mday = fileDate & 0x1f; // Day of the month @@ -1326,7 +1326,7 @@ time_t FAT_GetFileCreationTime (void) { // Read in the last accessed directory entry disc_ReadSector ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector, globalBuffer); - + return FAT_FileTimeToCTime(((DIR_ENT*)globalBuffer)[wrkDirOffset].cTime, ((DIR_ENT*)globalBuffer)[wrkDirOffset].cDate); } @@ -1339,7 +1339,7 @@ time_t FAT_GetFileLastWriteTime (void) { // Read in the last accessed directory entry disc_ReadSector ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector, globalBuffer); - + return FAT_FileTimeToCTime(((DIR_ENT*)globalBuffer)[wrkDirOffset].mTime, ((DIR_ENT*)globalBuffer)[wrkDirOffset].mDate); } #endif @@ -1371,11 +1371,11 @@ DIR_ENT FAT_DirEntFromPath (const char* path) { dirEntry.name[0] = FILE_FREE; dirEntry.attrib = 0x00; - return; + return dirEntry; } #endif - - if (path[pathPos] == '/') + + if (path[pathPos] == '/') { dirCluster = filesysRootDirClus; // Start at root directory } @@ -1383,13 +1383,13 @@ DIR_ENT FAT_DirEntFromPath (const char* path) { dirCluster = curWorkDirCluster; // Start at current working dir } - + // Eat any slash / while ((path[pathPos] == '/') && (path[pathPos] != '\0')) { pathPos++; } - + // Search until can't continue found = false; notFound = false; @@ -1437,7 +1437,7 @@ DIR_ENT FAT_DirEntFromPath (const char* path) flagLFN = true; } } - + // Add end of string char name[namePos] = '\0'; @@ -1497,7 +1497,7 @@ DIR_ENT FAT_DirEntFromPath (const char* path) dirEntry = FAT_GetDirEntry (dirCluster, 1, SEEK_CUR); } } - + if (found && ((dirEntry.attrib & ATTRIB_DIR) == ATTRIB_DIR) && (path[pathPos] != '\0')) // It has found a directory from within the path that needs to be followed { @@ -1505,7 +1505,7 @@ DIR_ENT FAT_DirEntFromPath (const char* path) dirCluster = dirEntry.startCluster | (dirEntry.startClusterHigh << 16); } } - + if (notFound) { dirEntry.name[0] = FILE_FREE; @@ -1534,11 +1534,11 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) bool flagLFN, dotSeen; char fileAlias[13] = {0}; int tailNum; - + unsigned char chkSum = 0; - + u32 oldWorkDirCluster; - + DIR_ENT* dirEntries = (DIR_ENT*)globalBuffer; u32 dirCluster; int secOffset; @@ -1566,7 +1566,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) { curWorkDirCluster = filesysRootDirClus; } - + pathPos = 0; filePos = 0; flagLFN = false; @@ -1576,7 +1576,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) if (path[pathPos + filePos] == '/') { filename[filePos] = '\0'; - if (FAT_chdir(filename) == false) + if (FAT_chdir(filename) == false) { curWorkDirCluster = oldWorkDirCluster; return false; // Couldn't change directory @@ -1587,17 +1587,17 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) filename[filePos] = path[pathPos + filePos]; filePos++; } - + // Skip over last slashes while (path[pathPos] == '/') pathPos++; - + // Check if the filename has a leading "." // If so, it is an LFN if (path[pathPos] == '.') { flagLFN = true; } - + // Copy name from path filePos = 0; dotSeen = false; @@ -1622,12 +1622,12 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) flagLFN = true; } } - + if (filePos == 0) // No filename { return false; } - + // Check if a long filename was specified if (filePos > 12) { @@ -1638,7 +1638,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) if (!flagLFN && (strrchr (filename, '.') != NULL) && (strlen(strrchr(filename, '.')) > 4)) { flagLFN = true; } - + lfnPos = (filePos - 1) / 13; // Add end of string char @@ -1646,8 +1646,8 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) // Clear remaining chars while (filePos < MAX_FILENAME_LENGTH) filename[filePos++] = 0x01; // Set for LFN compatibility - - + + if (flagLFN) { // Generate short filename - always a 2 digit number for tail @@ -1666,7 +1666,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) // Pad Alias with underscores while (aliasPos < 5) fileAlias[aliasPos++] = '_'; - + fileAlias[5] = '~'; fileAlias[8] = '.'; fileAlias[9] = ' '; @@ -1692,14 +1692,14 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) } else { aliasPos = 9; } - + // Pad Alias extension with spaces while (aliasPos < 12) fileAlias[aliasPos++] = ' '; - + fileAlias[12] = '\0'; - - + + // Get a valid tail number tailNum = 0; do { @@ -1707,7 +1707,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) fileAlias[6] = 0x30 + ((tailNum / 10) % 10); // 10's digit fileAlias[7] = 0x30 + (tailNum % 10); // 1's digit } while ((FAT_DirEntFromPath(fileAlias).name[0] != FILE_FREE) && (tailNum < 100)); - + if (tailNum < 100) // Found an alias not being used { // Calculate file checksum @@ -1725,7 +1725,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) { return false; } - + dirEntryLength = lfnPos + 2; } else // Its not a long file name @@ -1743,7 +1743,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) dirEntryLength = 1; } - + // Change dirEntry name to match alias for (aliasPos = 0; ((fileAlias[aliasPos] != '.') && (fileAlias[aliasPos] != '\0') && (aliasPos < 8)); aliasPos++) { @@ -1775,12 +1775,12 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) maxSectors = (dirCluster == FAT16_ROOT_DIR_CLUSTER ? (filesysData - filesysRootDir) : filesysSecPerClus); firstSector = (dirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(dirCluster)); disc_ReadSector (firstSector + secOffset, dirEntries); - + dirEntryRemain = dirEntryLength; tempDirCluster = dirCluster; tempSecOffset = secOffset; tempEntryOffset = entryOffset; - + // Search for a large enough space to fit in new directory entry while ((dirEntries[entryOffset].name[0] != FILE_LAST) && (dirEntryRemain > 0)) { @@ -1803,7 +1803,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) { dirCluster = FAT_NextCluster(dirCluster); } - firstSector = FAT_ClustToSect(dirCluster); + firstSector = FAT_ClustToSect(dirCluster); } else if ((dirCluster == FAT16_ROOT_DIR_CLUSTER) && (secOffset == (filesysData - filesysRootDir))) { @@ -1824,7 +1824,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) } // Modifying the last directory is a special case - have to erase following entries - if (dirEntries[entryOffset].name[0] == FILE_LAST) + if (dirEntries[entryOffset].name[0] == FILE_LAST) { dirEndFlag = true; } @@ -1843,7 +1843,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) } // Add new directory entry - while (dirEntryRemain > 0) + while (dirEntryRemain > 0) { // Move to next entry, first pass advances from last used entry entryOffset++; @@ -1868,7 +1868,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) { dirCluster = FAT_NextCluster(dirCluster); } - firstSector = FAT_ClustToSect(dirCluster); + firstSector = FAT_ClustToSect(dirCluster); } else if ((dirCluster == FAT16_ROOT_DIR_CLUSTER) && (secOffset == (filesysData - filesysRootDir))) { @@ -1900,7 +1900,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) lfnEntry.flag = ATTRIB_LFN; lfnEntry.reserved1 = 0; lfnEntry.reserved2 = 0; - + *((DIR_ENT_LFN*)&dirEntries[entryOffset]) = lfnEntry; lfnPos --; lfnEntry.ordinal = 0; @@ -1914,7 +1914,7 @@ bool FAT_AddDirEntry (const char* path, DIR_ENT newDirEntry) dirEntryRemain--; } - + // Write directory back to disk disc_WriteSector (firstSector + secOffset, dirEntries); @@ -1930,7 +1930,7 @@ FAT_FindNextFile Gets the name of the next directory entry (can be a file or subdirectory) char* filename: OUT filename, must be at least 13 chars long -FILE_TYPE return: OUT returns FT_NONE if failed, +FILE_TYPE return: OUT returns FT_NONE if failed, FT_FILE if it found a file and FT_DIR if it found a directory -----------------------------------------------------------------*/ FILE_TYPE FAT_FindNextFile(char* filename) @@ -1963,7 +1963,7 @@ FAT_FindFirstFile Gets the name of the first directory entry and resets the count (can be a file or subdirectory) char* filename: OUT filename, must be at least 13 chars long -FILE_TYPE return: OUT returns FT_NONE if failed, +FILE_TYPE return: OUT returns FT_NONE if failed, FT_FILE if it found a file and FT_DIR if it found a directory -----------------------------------------------------------------*/ FILE_TYPE FAT_FindFirstFile(char* filename) @@ -1971,7 +1971,7 @@ FILE_TYPE FAT_FindFirstFile(char* filename) // Get the first directory entry DIR_ENT file; file = FAT_GetDirEntry (curWorkDirCluster, 1, SEEK_SET); - + if (file.name[0] == FILE_FREE) { return FT_NONE; // Did not find a file @@ -1996,7 +1996,7 @@ FAT_FindFirstFileLFN Gets the long file name of the first directory entry and resets the count (can be a file or subdirectory) char* lfn: OUT long file name, must be at least 256 chars long -FILE_TYPE return: OUT returns FT_NONE if failed, +FILE_TYPE return: OUT returns FT_NONE if failed, FT_FILE if it found a file and FT_DIR if it found a directory -----------------------------------------------------------------*/ FILE_TYPE FAT_FindFirstFileLFN(char* lfn) @@ -2012,7 +2012,7 @@ FAT_FindNextFileLFN Gets the long file name of the next directory entry (can be a file or subdirectory) char* lfn: OUT long file name, must be at least 256 chars long -FILE_TYPE return: OUT returns FT_NONE if failed, +FILE_TYPE return: OUT returns FT_NONE if failed, FT_FILE if it found a file and FT_DIR if it found a directory -----------------------------------------------------------------*/ FILE_TYPE FAT_FindNextFileLFN(char* lfn) @@ -2026,29 +2026,29 @@ FILE_TYPE FAT_FindNextFileLFN(char* lfn) /*----------------------------------------------------------------- FAT_FileExists -Returns the type of file +Returns the type of file char* filename: IN filename of the file to look for -FILE_TYPE return: OUT returns FT_NONE if there is now file with +FILE_TYPE return: OUT returns FT_NONE if there is now file with that name, FT_FILE if it is a file and FT_DIR if it is a directory -----------------------------------------------------------------*/ FILE_TYPE FAT_FileExists(const char* filename) { - DIR_ENT dirEntry; - // Get the dirEntry for the path specified - dirEntry = FAT_DirEntFromPath (filename); - - if (dirEntry.name[0] == FILE_FREE) - { - return FT_NONE; - } - else if (dirEntry.attrib & ATTRIB_DIR) - { - return FT_DIR; - } - else - { - return FT_FILE; - } + DIR_ENT dirEntry; + // Get the dirEntry for the path specified + dirEntry = FAT_DirEntFromPath (filename); + + if (dirEntry.name[0] == FILE_FREE) + { + return FT_NONE; + } + else if (dirEntry.attrib & ATTRIB_DIR) + { + return FT_DIR; + } + else + { + return FT_FILE; + } } /*----------------------------------------------------------------- @@ -2074,7 +2074,7 @@ u32 FAT_GetFileSystemTotalSize (void) /*----------------------------------------------------------------- FAT_chdir Changes the current working directory -const char* path: IN null terminated string of directory separated by +const char* path: IN null terminated string of directory separated by forward slashes, / is root bool return: OUT returns true if successful -----------------------------------------------------------------*/ @@ -2090,7 +2090,7 @@ bool FAT_chdir (const char* path) { return true; } - + dir = FAT_DirEntFromPath (path); if (((dir.attrib & ATTRIB_DIR) == ATTRIB_DIR) && (dir.name[0] != FILE_FREE)) @@ -2111,7 +2111,7 @@ bool FAT_chdir (const char* path) return true; } else - { + { // Couldn't change directory - wrong path specified return false; } @@ -2120,12 +2120,12 @@ bool FAT_chdir (const char* path) /*----------------------------------------------------------------- FAT_fopen(filename, mode) Opens a file -const char* path: IN null terminated string of filename and path +const char* path: IN null terminated string of filename and path separated by forward slashes, / is root const char* mode: IN mode to open file in Supported modes: "r", "r+", "w", "w+", "a", "a+", don't use "b" or "t" in any mode, as all files are openned in binary mode -FAT_FILE* return: OUT handle to open file, returns NULL if the file +FAT_FILE* return: OUT handle to open file, returns NULL if the file couldn't be openned -----------------------------------------------------------------*/ FAT_FILE* FAT_fopen(const char* path, const char* mode) @@ -2149,10 +2149,10 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) { return NULL; } - + // Get the dirEntry for the path specified dirEntry = FAT_DirEntFromPath (path); - + // Check that it is not a directory if (dirEntry.attrib & ATTRIB_DIR) { @@ -2174,7 +2174,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) // Find a free file buffer for (fileNum = 0; (fileNum < MAX_FILES_OPEN) && (openFiles[fileNum].inUse == true); fileNum++); - + if (fileNum == MAX_FILES_OPEN) // No free files { return NULL; @@ -2191,7 +2191,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) { return NULL; } - + file->read = true; #ifdef CAN_WRITE_TO_DISC file->write = ( strchr(mode, '+') != NULL ); //(mode[1] == '+'); @@ -2199,13 +2199,13 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) file->write = false; #endif file->append = false; - + // Store information about position within the file, for use // by FAT_fread, FAT_fseek, etc. file->firstCluster = dirEntry.startCluster | (dirEntry.startClusterHigh << 16); - + #ifdef CAN_WRITE_TO_DISC - // Check if file is openned for random. If it is, and currently has no cluster, one must be + // Check if file is openned for random. If it is, and currently has no cluster, one must be // assigned to it. if (file->write && file->firstCluster == CLUSTER_FREE) { @@ -2223,7 +2223,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) disc_WriteSector (file->dirEntSector, globalBuffer); } #endif - + file->length = dirEntry.fileSize; file->curPos = 0; file->curClus = dirEntry.startCluster | (dirEntry.startClusterHigh << 16); @@ -2234,7 +2234,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) file->appByte = 0; file->appClus = 0; file->appSect = 0; - + disc_ReadSector( FAT_ClustToSect( file->curClus), file->readBuffer); file->inUse = true; // We're using this file now @@ -2248,7 +2248,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) { dirEntry.attrib = ATTRIB_ARCH; dirEntry.reserved = 0; - + // Time and date set to system time and date dirEntry.cTime_ms = 0; dirEntry.cTime = getRTCtoFileTime(); @@ -2257,12 +2257,12 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) dirEntry.mTime = getRTCtoFileTime(); dirEntry.mDate = getRTCtoFileDate(); } - else // Already a file entry + else // Already a file entry { // Free any clusters used FAT_ClearLinks (dirEntry.startCluster | (dirEntry.startClusterHigh << 16)); } - + // Get a cluster to use startCluster = FAT_LinkFreeCluster (CLUSTER_FREE); if (startCluster == CLUSTER_FREE) // Couldn't get a free cluster @@ -2298,13 +2298,13 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) ((DIR_ENT*) globalBuffer)[file->dirEntOffset] = dirEntry; disc_WriteSector (file->dirEntSector, globalBuffer); } - + // Now that file is created, open it file->read = ( strchr(mode, '+') != NULL ); //(mode[1] == '+'); file->write = true; file->append = false; - + // Store information about position within the file, for use // by FAT_fread, FAT_fseek, etc. file->firstCluster = startCluster; @@ -2318,7 +2318,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) file->appByte = 0; file->appClus = 0; file->appSect = 0; - + // Empty file, so empty read buffer memset (file->readBuffer, 0, BYTE_PER_READ); file->inUse = true; // We're using this file now @@ -2332,7 +2332,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) { dirEntry.attrib = ATTRIB_ARCH; dirEntry.reserved = 0; - + // Time and date set to system time and date dirEntry.cTime_ms = 0; dirEntry.cTime = getRTCtoFileTime(); @@ -2352,13 +2352,13 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) } dirEntry.startCluster = (startCluster & 0xFFFF); dirEntry.startClusterHigh = ((startCluster >> 16) & 0xFFFF); - + if(!FAT_AddDirEntry (path, dirEntry)) return NULL; - + // Get the newly created dirEntry dirEntry = FAT_DirEntFromPath (path); - + // Store append cluster file->appClus = startCluster; @@ -2377,7 +2377,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) { return NULL; } - + // Store cluster position into the directory entry dirEntry.startCluster = (file->firstCluster & 0xFFFF); dirEntry.startClusterHigh = ((file->firstCluster >> 16) & 0xFFFF); @@ -2387,7 +2387,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) // Store append cluster file->appClus = startCluster; - + } else { // Follow cluster list until last one is found @@ -2410,7 +2410,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) file->read = ( strchr(mode, '+') != NULL ); file->write = false; file->append = true; - + // Calculate the sector and byte of the current position, // and store them file->appSect = (dirEntry.fileSize % filesysBytePerClus) / BYTE_PER_READ; @@ -2424,7 +2424,7 @@ FAT_FILE* FAT_fopen(const char* path, const char* mode) file->curClus = file->appClus; file->curSect = file->appSect; file->curByte = file->appByte; - + // Read into buffer disc_ReadSector( FAT_ClustToSect(file->curClus) + file->curSect, file->readBuffer); file->inUse = true; // We're using this file now @@ -2464,7 +2464,7 @@ bool FAT_fclose (FAT_FILE* file) disc_CacheFlush(); } #endif - file->inUse = false; + file->inUse = false; return true; } else @@ -2515,14 +2515,14 @@ int FAT_fseek(FAT_FILE* file, s32 offset, int origin) } // Can't seek in append only mode - if (!file->read && !file->write) + if (!file->read && !file->write) { return -1; } curPos = file->curPos; - switch (origin) + switch (origin) { case SEEK_SET: if (offset >= 0) @@ -2537,13 +2537,13 @@ int FAT_fseek(FAT_FILE* file, s32 offset, int origin) if (offset >= 0) { position = curPos + offset; - } + } else if ( (u32)(offset * -1) >= curPos ) { // Tried to seek before start of file position = 0; } - else + else { // Using u32 to maintain 32 bits of accuracy position = curPos - (u32)(offset * -1); @@ -2560,7 +2560,7 @@ int FAT_fseek(FAT_FILE* file, s32 offset, int origin) // Tried to seek before start of file position = 0; } - else + else { // Using u32 to maintain 32 bits of accuracy position = file->length - (u32)(offset * -1); @@ -2575,7 +2575,7 @@ int FAT_fseek(FAT_FILE* file, s32 offset, int origin) // Tried to go past end of file position = file->length; } - + // Save position file->curPos = position; @@ -2608,14 +2608,14 @@ int FAT_fseek(FAT_FILE* file, s32 offset, int origin) nextCluster = FAT_NextCluster (cluster); } // Check if ran out of clusters, and the file is being written to - if ((clusCount >= 0) && (file->write || file->append)) + if ((clusCount >= 0) && (file->write || file->append)) { // Set flag to allocate a new cluster file->curSect = filesysSecPerClus; file->curByte = 0; } file->curClus = cluster; - + // Reload sector buffer for new position in file, if it is a different sector if ((curPos ^ position) >= BYTE_PER_READ) { @@ -2645,7 +2645,7 @@ u32 FAT_fread (void* buffer, u32 size, u32 count, FAT_FILE* file) int curSect; u32 curClus; u32 tempNextCluster; - + int tempVar; char* data = (char*)buffer; @@ -2678,14 +2678,14 @@ u32 FAT_fread (void* buffer, u32 size, u32 count, FAT_FILE* file) if (tempVar > remain) tempVar = remain; - if ((tempVar < BYTE_PER_READ) && flagNoError) + if ((tempVar < BYTE_PER_READ) && flagNoError) { memcpy(data, &(file->readBuffer[curByte]), tempVar); remain -= tempVar; data += tempVar; curByte += tempVar; - if (curByte >= BYTE_PER_READ) + if (curByte >= BYTE_PER_READ) { curByte = 0; curSect++; @@ -2694,7 +2694,7 @@ u32 FAT_fread (void* buffer, u32 size, u32 count, FAT_FILE* file) // align to cluster // tempVar is number of sectors to read - if (remain > (filesysSecPerClus - curSect) * BYTE_PER_READ) + if (remain > (filesysSecPerClus - curSect) * BYTE_PER_READ) { tempVar = filesysSecPerClus - curSect; } else { @@ -2789,7 +2789,7 @@ u32 FAT_fread (void* buffer, u32 size, u32 count, FAT_FILE* file) FAT_fwrite(buffer, size, count, file) Writes size * count bytes into file from buffer, starting from current position. It then sets the current position to the - byte after the last byte written. If the file was openned in + byte after the last byte written. If the file was openned in append mode it always writes to the end of the file. const void* buffer IN: Pointer to buffer containing data. Should be at least as big as the number of bytes to be written. @@ -2870,7 +2870,7 @@ u32 FAT_fwrite (const void* buffer, u32 size, u32 count, FAT_FILE* file) disc_ReadSector( FAT_ClustToSect( curClus), writeBuffer); } } - + // Align to sector tempVar = BYTE_PER_READ - curByte; if (tempVar > remain) @@ -2885,9 +2885,9 @@ u32 FAT_fwrite (const void* buffer, u32 size, u32 count, FAT_FILE* file) // Write buffer back to disk disc_WriteSector (curSect + FAT_ClustToSect(curClus), writeBuffer); - + // Move onto next sector - if (curByte >= BYTE_PER_READ) + if (curByte >= BYTE_PER_READ) { curByte = 0; curSect++; @@ -2896,7 +2896,7 @@ u32 FAT_fwrite (const void* buffer, u32 size, u32 count, FAT_FILE* file) // Align to cluster // tempVar is number of sectors to write - if (remain > (filesysSecPerClus - curSect) * BYTE_PER_READ) + if (remain > (filesysSecPerClus - curSect) * BYTE_PER_READ) { tempVar = filesysSecPerClus - curSect; } else { @@ -2964,7 +2964,7 @@ u32 FAT_fwrite (const void* buffer, u32 size, u32 count, FAT_FILE* file) remain -= tempVar * BYTE_PER_READ; curSect += tempVar; } - + // Last remaining sector // Check if sector wanted is different to the one started with if ( (( (file->append ? file->appByte : file->curByte) + length) >= BYTE_PER_READ) && flagNoError) @@ -2984,7 +2984,7 @@ u32 FAT_fwrite (const void* buffer, u32 size, u32 count, FAT_FILE* file) disc_WriteSector( curSect + FAT_ClustToSect( curClus), writeBuffer); } } - + // Amount read is the originally requested amount minus stuff remaining length = length - remain; @@ -3041,14 +3041,14 @@ int FAT_remove (const char* path) u32 oldWorkDirCluster; char checkFilename[13]; FILE_TYPE checkFiletype; - + dirEntry = FAT_DirEntFromPath (path); if (dirEntry.name[0] == FILE_FREE) { return -1; } - + // Only delete directories if the directory is entry if (dirEntry.attrib & ATTRIB_DIR) { @@ -3062,10 +3062,10 @@ int FAT_remove (const char* path) { checkFiletype = FAT_FindNextFile (checkFilename); } - + // Change back to working directory curWorkDirCluster = oldWorkDirCluster; - + // Check that the directory is empty if (checkFiletype != FT_NONE) { @@ -3084,7 +3084,7 @@ int FAT_remove (const char* path) disc_ReadSector ( (wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector , globalBuffer); ((DIR_ENT*)globalBuffer)[wrkDirOffset].name[0] = FILE_FREE; disc_WriteSector ( (wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? filesysRootDir : FAT_ClustToSect(wrkDirCluster)) + wrkDirSector , globalBuffer); - + // Flush any sectors in disc cache disc_CacheFlush(); @@ -3095,7 +3095,7 @@ int FAT_remove (const char* path) #ifdef CAN_WRITE_TO_DISC /*----------------------------------------------------------------- FAT_mkdir (path) -Makes a new directory, so long as no other directory or file has +Makes a new directory, so long as no other directory or file has the same name. const char* path IN: Path and filename of directory to make int return OUT: zero if successful, non-zero if not @@ -3123,7 +3123,7 @@ int FAT_mkdir (const char* path) { curWorkDirCluster = filesysRootDirClus; } - + pathPos = 0; filePos = 0; @@ -3132,7 +3132,7 @@ int FAT_mkdir (const char* path) if (path[pathPos + filePos] == '/') { pathname[filePos] = '\0'; - if (FAT_chdir(pathname) == false) + if (FAT_chdir(pathname) == false) { curWorkDirCluster = oldDirCluster; return -1; // Couldn't change directory @@ -3236,9 +3236,9 @@ FAT_fgets (char *tgtBuffer, int num, FAT_FILE* file) Gets a up to num bytes from file, stopping at the first newline. -CAUTION: does not do strictly streaming. I.e. it's +CAUTION: does not do strictly streaming. I.e. it's reading more then needed bytes and seeking back. - shouldn't matter for random access + shouldn't matter for random access char *tgtBuffer OUT: buffer to write to int num IN: size of target buffer @@ -3250,62 +3250,62 @@ bool return OUT: character if successful, EOF if not * Added check for unix style text files * Removed seek when no newline is found, since it isn't necessary -------------------------------------------------------------------*/ -char *FAT_fgets(char *tgtBuffer, int num, FAT_FILE* file) -{ +char *FAT_fgets(char *tgtBuffer, int num, FAT_FILE* file) +{ u32 curPos; u32 readLength; char *returnChar; - - // invalid filehandle + + // invalid filehandle if (file == NULL) { - return NULL ; + return NULL ; } - - // end of file + + // end of file if (FAT_feof(file)==true) { - return NULL ; - } - - // save current position - curPos = FAT_ftell(file); - - // read the full buffer (max string chars is num-1 and one end of string \0 - readLength = FAT_fread(tgtBuffer,1,num-1,file) ; - - // mark least possible end of string - tgtBuffer[readLength] = '\0' ; - - if (readLength==0) { - // return error - return NULL ; - } - - // get position of first return '\r' - returnChar = strchr(tgtBuffer,'\r'); - + return NULL ; + } + + // save current position + curPos = FAT_ftell(file); + + // read the full buffer (max string chars is num-1 and one end of string \0 + readLength = FAT_fread(tgtBuffer,1,num-1,file) ; + + // mark least possible end of string + tgtBuffer[readLength] = '\0' ; + + if (readLength==0) { + // return error + return NULL ; + } + + // get position of first return '\r' + returnChar = strchr(tgtBuffer,'\r'); + // if no return is found, search for a newline if (returnChar == NULL) { returnChar = strchr(tgtBuffer,'\n'); } - - // Mark the return, if existant, as end of line/string - if (returnChar!=NULL) { - *returnChar++ = 0 ; - if (*returnChar=='\n') { // catch newline too when jumping over the end - // return to location after \r\n (strlen+2) - FAT_fseek(file,curPos+strlen(tgtBuffer)+2,SEEK_SET) ; - return tgtBuffer ; - } else { - // return to location after \r (strlen+1) - FAT_fseek(file,curPos+strlen(tgtBuffer)+1,SEEK_SET) ; - return tgtBuffer ; + + // Mark the return, if existant, as end of line/string + if (returnChar!=NULL) { + *returnChar++ = 0 ; + if (*returnChar=='\n') { // catch newline too when jumping over the end + // return to location after \r\n (strlen+2) + FAT_fseek(file,curPos+strlen(tgtBuffer)+2,SEEK_SET) ; + return tgtBuffer ; + } else { + // return to location after \r (strlen+1) + FAT_fseek(file,curPos+strlen(tgtBuffer)+1,SEEK_SET) ; + return tgtBuffer ; } } - - return tgtBuffer ; + + return tgtBuffer ; } #ifdef CAN_WRITE_TO_DISC @@ -3322,20 +3322,20 @@ bool return OUT: number of characters written if successful, * Uses FAT_FILE instead of int * writtenBytes is now u32 instead of int -------------------------------------------------------------------*/ -int FAT_fputs (const char *string, FAT_FILE* file) -{ +int FAT_fputs (const char *string, FAT_FILE* file) +{ u32 writtenBytes; - // save string except end of string '\0' - writtenBytes = FAT_fwrite((void *)string, 1, strlen(string), file); + // save string except end of string '\0' + writtenBytes = FAT_fwrite((void *)string, 1, strlen(string), file); - // check if we had an error - if (writtenBytes != strlen(string)) - { - // return EOF error + // check if we had an error + if (writtenBytes != strlen(string)) + { + // return EOF error return EOF; } - // return the charcount written - return writtenBytes ; + // return the charcount written + return writtenBytes ; } #endif -- cgit v1.2.3