For Discussion see: NSDataAndResourceForks
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MacBinaryIII.c
/*************************** MacBinaryIII.c
Copyright 1997 Christopher Evans (cevans@poppybank.com)
Basic encoding and decoding of Macintosh files to the
MacBinary III spec.
This file is part of the MacBinaryIII_src_C.sit package see macbin3.h for more information
***************************/
/****************************/ / Includes / /****************************/
#include
/****************************/ / Macros, typedefs / /****************************/
/* source (the macbinary file) will be deleted */ #define DELETE_MACBINARY_SOURCE
/* enable encoding #define INCLUDE_ENCODE_MACBINARY */
/* enable decoding */ #define INCLUDE_DECODE_MACBINARY
/* include own CRC 32 Bit Calculation #define INCLUDE_CRC32CALC */
/* produce some helpful printouts for tracing #define TRACE_MACBINARY */
#define LONG_AT_OFFSET(data, offset) *((long *)((unsigned char *)&data[offset])) #define WORD_AT_OFFSET(data, offset) *((Word *)((unsigned char *)&data[offset])) #define BYTE_AT_OFFSET(data, offset) *((Byte *)((unsigned char *)&data[offset])) #define PTR_AT_OFFSET(data, offset) ((Ptr)((unsigned char *)&data[offset]))
typedef unsigned short Word;
#define kOldVersionOffset 0 #define kFileNameLengthOffset 1 #define kFileNameOffset 2 #define kFileTypeOffset 65 #define kFileCreatorOffset 69 #define kFinderFlagsHiOffset 73 #define kVersionCheckZero 74 #define kFileVPositionOffset 75 #define kFileHPositionOffset 77 #define kFileFolderIDOffset 79 #define kProtectedFlagOffset 81 #define kVersionOneCheckZero 82 #define kDataForkLengthOffset 83 #define kResourceForkLengthOffset 87 #define kFileCreationDateOffset 91 #define kFileModificationDateOffset 95 #define kGetInfoCommentLengthOffset 99 #define kFinderFlagsLowOffset 101 #define kMacbinarySigOffset 102 #define kFilenameScriptOffset 106 #define kExtendedFinderFlagsOffset 107 #define kTotalFileLengthOffset 116 #define kSecondaryHeaderLengthOffset 120 #define kCurrentVersionOffset 122 #define kMinimumVersionOffset 123 #define kCRCOffset 124
#define kResourceForkMaxLen (1024 * 1024 * 16)
/****************************/ / Module level Vars / /****************************/
#ifdef INCLUDE_CRC32CALC static unsigned long crc_table[256] = { 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L, 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL, 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L, 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L, 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL, 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L, 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L, 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L, 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL, 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL, 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L, 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L, 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL }; #endif
/****************************/ / Prototypes / /****************************/
static Boolean HeaderIsMacBinary(char header, Word *version, long maxDataLen); static Boolean FSpExists(FSSpec *file); #ifdef INCLUDE_CRC32CALC static unsigned long crc32(unsigned long seed, unsigned char *p, size_t len); #else extern unsigned long crc32(unsigned long seed, unsigned char *p, size_t len); #endif static OSErr GetDesktopComment(FSSpec *file, charcomment, long length); static OSErr SetDesktopComment(FSSpec *file, charcomment, long length); static Handle EncodeMacbinary(FSSpec *file); static OSErr DecodeMacBinary(Handle data, FSSpec *destination);
/****************************/ / Functions / /****************************/
#ifdef INCLUDE_CRC32CALC /* taken from the mcvert source code / static unsigned long crc32(unsigned long seed, unsigned char *p, size_t len) { unsigned long hold; / crc computed so far / size_t i; / index into data */
hold = seed; /* start with seed */
for (i = 0; i < len; i++, p++)
{
hold ^= (*p << 8);
hold = (hold << 8) ^ crc_table[(unsigned char) (hold >> 8)];
}
return (hold); } /* crc32() */ #endif
static Boolean FSpExists(FSSpec *file) { FInfo fndrInfo;
return FSpGetFInfo(file, &fndrInfo) == noErr; }
static Boolean HeaderIsMacBinary(char *header, Word *version, long maxDataLen) { Boolean isIt = false; unsigned long resourceForkLength, dataForkLength, df_rf_length; short commentLength; Byte mbVersion;
#ifdef TRACE_MACBINARY printf(“\n\n Function HeaderIsMacBinary(): “); #endif
if(LONG_AT_OFFSET(header, kMacbinarySigOffset) == 'mBIN')
{
isIt = true;
mbVersion = 130;
}
else
if(BYTE_AT_OFFSET(header, kVersionCheckZero) == 0 &&
BYTE_AT_OFFSET(header, kOldVersionOffset) == 0)
{
if(WORD_AT_OFFSET(header, kCRCOffset) ==
crc32(0, (unsigned char*) &header, 124))
{
isIt = true;
mbVersion = 129;
}
else
{
if(BYTE_AT_OFFSET(header, kVersionOneCheckZero) == 0)
{
isIt = true;
mbVersion = 128;
}
}
}
#ifdef TRACE_MACBINARY printf(“\n mbVersion: %d”,mbVersion); #endif
resourceForkLength = LONG_AT_OFFSET(header, kResourceForkLengthOffset);
dataForkLength = LONG_AT_OFFSET(header, kDataForkLengthOffset);
commentLength = WORD_AT_OFFSET(header, kGetInfoCommentLengthOffset);
df_rf_length = dataForkLength + resourceForkLength;
#ifdef TRACE_MACBINARY printf(“\n resourceForkLength: %d”,resourceForkLength); printf(“\n dataForkLength: %d”,dataForkLength); printf(“\n commentLength: %d”,commentLength); printf(“\n df_rf_length: %d”,df_rf_length); printf(“\n 1. isIt: bool: %d”, isIt); printf(“\n BYTE_AT_OFFSET(header, kFileNameLengthOffset) >= 1 bool: %d”, BYTE_AT_OFFSET(header, kFileNameLengthOffset) >= 1); printf(“\n BYTE_AT_OFFSET(header, kFileNameLengthOffset) <= 31 bool: %d”, BYTE_AT_OFFSET(header, kFileNameLengthOffset) <= 31); printf(“\n dataForkLength >= 0 bool: %d”, dataForkLength >= 0); printf(“\n resourceForkLength >= 0 bool: %d”, resourceForkLength >= 0); printf(“\n resourceForkLength <= 0x%8x bool: %d”, kResourceForkMaxLen, resourceForkLength <= kResourceForkMaxLen); printf(“\n dataForkLength <= %8u bool: %d”, maxDataLen, dataForkLength <= maxDataLen); printf(“\n df_rf_length > 0 bool: %d”, df_rf_length > 0); printf(“\n df_rf_length <= %8u bool: %d”, maxDataLen, df_rf_length <= maxDataLen); #endif
if(isIt &&
BYTE_AT_OFFSET(header, kFileNameLengthOffset) >= 1 &&
BYTE_AT_OFFSET(header, kFileNameLengthOffset) <= 31 &&
dataForkLength >= 0 &&
resourceForkLength >= 0 &&
resourceForkLength <= kResourceForkMaxLen &&
df_rf_length > 0 &&
df_rf_length <= maxDataLen)
{
isIt = true;
}
else
isIt = false; /* something is wrong with the header */
#ifdef TRACE_MACBINARY printf(“\n 2. isIt: bool: %d”, isIt); #endif
if(version)
*version = mbVersion;
return isIt; }
Boolean FSpIsMacBinary(FSSpec *file) { char header[128]; short dfRefNum = 0; OSErr err; long size; Boolean isIt = false; CInfoPBRec pb; long maxDataLen;
memset(&pb, 0, sizeof(CInfoPBRec));
pb.hFileInfo.ioNamePtr = file->name;
pb.hFileInfo.ioVRefNum = file->vRefNum;
pb.hFileInfo.ioFDirIndex = 0; /* query a file */
pb.hFileInfo.ioDirID = file->parID;
err = PBGetCatInfo(&pb,false);
maxDataLen = pb.hFileInfo.ioFlLgLen;
memset(header, 0, 128);
err = FSpOpenDF(file, fsRdPerm, &dfRefNum);
if(!err)
{
err = GetEOF(dfRefNum, &size);
if(size > 128)
{
size = 128;
err = FSRead(dfRefNum, &size, &header);
if(err == noErr)
{
isIt = HeaderIsMacBinary(header, nil, maxDataLen);
}
}
FSClose(dfRefNum);
}
return isIt; }
#ifdef INCLUDE_ENCODE_MACBINARY
static OSErr GetDesktopComment(FSSpec file, charcomment, long *length) { DTPBRec pb; OSErr err;
pb.ioCompletion = nil;
pb.ioNamePtr = NULL;
pb.ioVRefNum = file->vRefNum;
err = PBDTGetPath(&pb);
if(err == noErr)
{
pb.ioNamePtr = file->name;
pb.ioDTBuffer = comment;
pb.ioDirID = file->parID;
err = PBDTGetComment(&pb, false);
*length = pb.ioDTActCount;
}
return err; }
OSErr EncodeMacbinaryFile(FSSpec *file) { Handle data; OSErr err = paramErr; short dfRefNum;
data = EncodeMacbinary(file);
if(data)
{
Str255 pascalString;
Str255 cString;
if(file->name[0] > 27)
file->name[0] = 27;
p2cstrcpy(cString, file->name);
strcat(cString, ".bin");
c2pstrcpy(pascalString, cString);
memcpy(file->name, pascalString, 64);
FSpDelete(file);
if(FSpCreate(file, 'dMB3', 'mBIN', smSystemScript) == noErr)
{
err = FSpOpenDF(file, fsWrPerm, &dfRefNum);
if(err == noErr)
{
long inOutCount = GetHandleSize(data);
HLock(data);
err = FSWrite(dfRefNum,&inOutCount,*data);
HUnlock(data);
FSClose(dfRefNum);
}
}
DisposeHandle(data);
}
return err; } static Handle EncodeMacbinary(FSSpec *file) {
Handle result = nil;
FInfo fndrInfo;
FXInfo fndrXInfo;
OSErr err;
CInfoPBRec pb;
short dfRefNum, rfRefNum;
long ioCount;
char buffer[128];
char header[128];
char comment[256];
long resourceForkLength, dataForkLength, commentLength;
memset(&header, 0, sizeof(header));
err = FSpGetFInfo(file, &fndrInfo);
memset(&pb, 0, sizeof(CInfoPBRec));
pb.hFileInfo.ioNamePtr = file->name;
pb.hFileInfo.ioVRefNum = file->vRefNum;
pb.hFileInfo.ioFDirIndex = 0; //query a file
pb.hFileInfo.ioDirID = file->parID;
err = PBGetCatInfo(&pb,false);
fndrXInfo = pb.hFileInfo.ioFlXFndrInfo;
BYTE_AT_OFFSET(header, kFileNameLengthOffset) = file->name[0];
BlockMoveData( &(file->name[1]),
PTR_AT_OFFSET(header,
kFileNameOffset),
file->name[0]);
LONG_AT_OFFSET(header, kFileTypeOffset) = fndrInfo.fdType;
LONG_AT_OFFSET(header, kFileCreatorOffset) = fndrInfo.fdCreator;
BYTE_AT_OFFSET(header, kFinderFlagsHiOffset) =
(fndrInfo.fdFlags & 0xFF00) >> 8;
BYTE_AT_OFFSET(header, kFinderFlagsLowOffset) =
(fndrInfo.fdFlags & 0x00FF);
WORD_AT_OFFSET(header, kFileVPositionOffset) = fndrInfo.fdLocation.v;
WORD_AT_OFFSET(header, kFileHPositionOffset) = fndrInfo.fdLocation.h;
WORD_AT_OFFSET(header, kFileFolderIDOffset) = fndrInfo.fdFldr;
LONG_AT_OFFSET(header, kFileCreationDateOffset) = pb.hFileInfo.ioFlCrDat;
LONG_AT_OFFSET(header, kFileModificationDateOffset) =
pb.hFileInfo.ioFlMdDat;
LONG_AT_OFFSET(header, kMacbinarySigOffset) = 'mBIN';
BYTE_AT_OFFSET(header, kFilenameScriptOffset) = fndrXInfo.fdScript;
BYTE_AT_OFFSET(header, kExtendedFinderFlagsOffset) = fndrXInfo.fdXFlags;
LONG_AT_OFFSET(header, kTotalFileLengthOffset) = 0;
WORD_AT_OFFSET(header, kSecondaryHeaderLengthOffset) = 0;
WORD_AT_OFFSET(header, kCurrentVersionOffset) = 130;
WORD_AT_OFFSET(header, kMinimumVersionOffset) = 129;
err = FSpOpenDF(file,fsRdPerm,&dfRefNum);
if(err == noErr)
{
err = GetEOF(dfRefNum,&dataForkLength);
LONG_AT_OFFSET(header, kDataForkLengthOffset) = dataForkLength;
}
else
{
dfRefNum = 0;
}
err = FSpOpenRF(file,fsRdPerm,&rfRefNum);
if(err == noErr)
{
err = GetEOF(rfRefNum,&resourceForkLength);
LONG_AT_OFFSET(header, kResourceForkLengthOffset) = resourceForkLength;
}
else
{
rfRefNum = 0;
}
memset(comment, 0, 256);
if(GetDesktopComment(file, comment, &commentLength) != noErr)
commentLength = 0;
WORD_AT_OFFSET(header, kGetInfoCommentLengthOffset) = commentLength;
WORD_AT_OFFSET(header, kCRCOffset) =
crc32( 0, (unsigned char*) &header, 124);
result = TempNewHandle(0, &err);
if(result)
{
err = PtrAndHand(&header,result,128);
if(dfRefNum && dataForkLength)
{
err = noErr;
while(dataForkLength > 0 && err == noErr)
{
ioCount = 128;
err = FSRead(dfRefNum,&ioCount,&buffer);
if(err == noErr || err == eofErr)
err = PtrAndHand(&buffer,result,128);
dataForkLength -= ioCount;
}
}
if(rfRefNum && resourceForkLength)
{
err = noErr;
while(resourceForkLength > 0 && err == noErr)
{
ioCount = 128;
err = FSRead(rfRefNum,&ioCount,&buffer);
if(err == noErr || err == eofErr)
err = PtrAndHand(&buffer,result,128);
resourceForkLength -= ioCount;
}
}
if(commentLength)
{
PtrAndHand(&comment,result,commentLength);
}
}
if(rfRefNum)
FSClose(rfRefNum);
if(dfRefNum)
FSClose(dfRefNum);
return result; }
#endif /* INCLUDE_ENCODE_MACBINARY */ #ifdef INCLUDE_DECODE_MACBINARY
static OSErr SetDesktopComment(FSSpec file, charcomment, long length) { DTPBRec pb; OSErr err;
pb.ioCompletion = nil;
pb.ioNamePtr = NULL;
pb.ioVRefNum = file->vRefNum;
err = PBDTGetPath(&pb);
if(err == noErr)
{
pb.ioNamePtr = file->name;
pb.ioDTBuffer = comment;
pb.ioDirID = file->parID;
pb.ioDTReqCount = length;
err = PBDTSetComment(&pb, false);
}
return err; }
OSErr DecodeMacBinaryFile(FSSpec *source) { Handle data = nil; OSErr err; short dfRefNum = 0; long size; FSSpec McBin_source;
memcpy(McBin_source.name,source->name,source->name[0]+1);
McBin_source.vRefNum = source->vRefNum;
McBin_source.parID = source->parID;
err = FSpOpenDF(source, fsRdPerm, &dfRefNum);
if(!err)
{
err = GetEOF(dfRefNum, &size);
data = TempNewHandle(size, &err);
if(data)
{
HLock(data);
err = FSRead(dfRefNum,&size,*data);
HUnlock(data);
}
FSClose(dfRefNum);
}
if(data && err == noErr)
{
err = DecodeMacBinary(data, source);
DisposeHandle(data);
}
#ifdef DELETE_MACBINARY_SOURCE if (err == noErr) err = FSpDelete(&McBin_source); #endif
return err; }
static OSErr DecodeMacBinary(Handle data, FSSpec *destination) { Handle result = nil; FInfo fndrInfo; OSErr err; CInfoPBRec pb; short dfRefNum, rfRefNum; long ioCount; char header[128]; char comment[256]; long resourceForkLength, dataForkLength, commentLength; Boolean isMacBinaryFile = false; short headerEnd = 128; long rfOffset; long maxDataLen;
memset(&pb, 0, sizeof(CInfoPBRec));
pb.hFileInfo.ioNamePtr = destination->name;
pb.hFileInfo.ioVRefNum = destination->vRefNum;
pb.hFileInfo.ioFDirIndex = 0; /* query a file */
pb.hFileInfo.ioDirID = destination->parID;
err = PBGetCatInfo(&pb,false);
maxDataLen = pb.hFileInfo.ioFlLgLen;
HLock(data);
memcpy(header, *data, 128);
/* already checked with FSpIsMacBinary() */
isMacBinaryFile = HeaderIsMacBinary(header, nil, maxDataLen);;
if(!isMacBinaryFile)
return paramErr;
if(WORD_AT_OFFSET(header, kSecondaryHeaderLengthOffset))
{
headerEnd = WORD_AT_OFFSET(header, kSecondaryHeaderLengthOffset);
headerEnd = (headerEnd + 127) & ~127L;
}
resourceForkLength = LONG_AT_OFFSET(header, kResourceForkLengthOffset);
dataForkLength = LONG_AT_OFFSET(header, kDataForkLengthOffset);
commentLength = WORD_AT_OFFSET(header, kGetInfoCommentLengthOffset);
memcpy( destination->name,
PTR_AT_OFFSET(header,
kFileNameLengthOffset),
BYTE_AT_OFFSET(header,
kFileNameLengthOffset));
fndrInfo.fdType = LONG_AT_OFFSET(header, kFileTypeOffset);
fndrInfo.fdCreator = LONG_AT_OFFSET(header, kFileCreatorOffset);
fndrInfo.fdFlags = BYTE_AT_OFFSET(header, kFinderFlagsHiOffset);
fndrInfo.fdFlags << 8;
fndrInfo.fdFlags |= BYTE_AT_OFFSET(header, kFinderFlagsLowOffset);
fndrInfo.fdLocation.v = WORD_AT_OFFSET(header, kFileVPositionOffset);
fndrInfo.fdLocation.h = WORD_AT_OFFSET(header, kFileHPositionOffset);
fndrInfo.fdFldr = WORD_AT_OFFSET(header, kFileFolderIDOffset); /*
index = 1;
checkFile = *destination;
while(FSpExists(&checkFile))
{
checkFile = *destination;
if(index < 10)
checkFile.name[++checkFile.name[0]] = '0' + index;
else
checkFile.name[++checkFile.name[0]] = ('a' - 10) + index;
index++;
}
*destination = checkFile; */
err = FSpCreate(destination,
fndrInfo.fdCreator,
fndrInfo.fdType,
smSystemScript);
dfRefNum = 0;
if(err == noErr)
{
err = FSpOpenDF(destination, fsRdWrPerm, &dfRefNum);
}
if(err == noErr && dfRefNum)
{
ioCount = dataForkLength;
err = FSWrite(dfRefNum,&ioCount,*data + headerEnd);
FSClose(dfRefNum);
}
rfRefNum = 0;
if(err == noErr)
{
err = FSpOpenRF(destination, fsRdWrPerm, &rfRefNum);
}
rfOffset = headerEnd + dataForkLength;
rfOffset = (rfOffset + 127) & ~127L;
if(err == noErr && rfRefNum)
{
ioCount = resourceForkLength;
err = FSWrite(rfRefNum,&ioCount,*data + rfOffset);
FSClose(rfRefNum);
}
rfOffset += resourceForkLength;
rfOffset = (rfOffset + 127) & ~127L;
if(err == noErr)
{
FSpSetFInfo(destination,&fndrInfo);
memset(&pb, 0, sizeof(CInfoPBRec));
pb.hFileInfo.ioNamePtr = destination->name;
pb.hFileInfo.ioVRefNum = destination->vRefNum;
pb.hFileInfo.ioFDirIndex = 0; /* query a file */
pb.hFileInfo.ioDirID = destination->parID;
err = PBGetCatInfo(&pb,false);
if(err == noErr)
{
pb.hFileInfo.ioDirID = destination->parID;
pb.hFileInfo.ioFlCrDat =
LONG_AT_OFFSET(header, kFileCreationDateOffset);
pb.hFileInfo.ioFlMdDat =
LONG_AT_OFFSET(header, kFileModificationDateOffset);
pb.hFileInfo.ioFlXFndrInfo.fdXFlags =
BYTE_AT_OFFSET(header, kExtendedFinderFlagsOffset);
pb.hFileInfo.ioFlXFndrInfo.fdScript =
BYTE_AT_OFFSET(header, kFilenameScriptOffset);
err = PBSetCatInfo(&pb, false);
}
if(commentLength)
{
memcpy(comment,*data + rfOffset, commentLength);
SetDesktopComment(destination, comment, commentLength);
}
}
HUnlock(data);
return err; } #endif /* INCLUDE_DECODE_MACBINARY */
macbin3.h
#include <Carbon/Carbon.h> #ifndef MCBINIII_H #define MCBINIII_H
/* Public functions */
OSErr EncodeMacbinaryFile(FSSpec *file); OSErr DecodeMacBinaryFile(FSSpec *source); Boolean FSpIsMacBinary(FSSpec *file);
#endif
To make the FSSpec:
How to actually use it:
(BOOL)addFile:(NSString *)aPath replaceFileAtPathFromBase:(NSString *)replacementPath name:(NSString *)name { // Define the method variables. NSFileManager * manager = [NSFileManager defaultManager]; FSSpec spec;
// Get the file name and create the tmp file name. NSString * pathName = [@”/tmp” stringByAppendingPathComponent:[aPath lastPathComponent]];
// Delete the file in /tmp so this will work if ([manager fileExistsAtPath:pathName]) { [manager removeFileAtPath:pathName handler:nil]; }
// Copy the file to the temp file. if([manager copyPath:aPath toPath:pathName handler:nil]) { // Create a FSSpec of the tmp file. if ([self makeFSSpec:&spec fromPath:pathName]) { // Encode the file into MacBinary. OSErr err = EncodeMacbinaryFile(&spec); if (err == noErr) { // Remove the tmp file. [manager removeFileAtPath:pathName handler:nil];
NSString * binName = [pathName stringByAppendingPathExtension:@"bin"];
NSData * app = [NSData dataWithContentsOfFile:binName];
NSDictionary * dictionary = [NSDictionary dictionaryWithObjectsAndKeys:
app, @"data",
binName, @"origPath",
replacementPath, @"destPath",
name,@"name",
nil];
// Insert the dictionary & file into the array.
[files insertObject:dictionary atIndex:[files count]];
[manager removeFileAtPath:binName handler:nil];
NSLog(@"MacBinary file created and inserted into the array.");
return YES;
} else {
NSLog(@"MacBinary not created!");
[manager removeFileAtPath:pathName handler:nil];
return NO;
}
} } else {
return NO; } }
(BOOL)writeFileAtIndex:(unsigned)index toDirectory:(NSString *)aPath { if ([files count] > 0) { // Define the method variables. NSFileManager * manager = [NSFileManager defaultManager]; FSSpec spec;
// Take the file data from the requested index.
NSData * data = files objectAtIndex:index] objectForKey:@"data"];
[[NSString * writePath = [@"/tmp" stringByAppendingPathComponent:[files objectAtIndex:index] objectForKey:@"origPath"] lastPathComponent;
// Write the requested data to the temp path.
if ([data writeToFile:writePath atomically:YES] && [self makeFSSpec:&spec fromPath:writePath]) {
// Decode the file
OSErr err = DecodeMacBinaryFile(&spec);
NSString * newPath = [writePath stringByDeletingPathExtension];
// Move the file to the requested destination.
if (err == noErr && [manager movePath:newPath toPath:[aPath stringByAppendingPathComponent:[newPath lastPathComponent]] handler:nil]) {
// Remove the temporary file.
[manager removeFileAtPath:newPath handler:nil];
return YES;
} else {
return NO;
}
} else {
return NO;
} } return NO; }