Hello All ,
Using FSReadFork I want to read a text file but while reading that returns error code like --4628 ,-4132,-5380 etc.
Following code I am using for opening and reading file.
FSOpenFork return successfully, but for FSReadFork is unuccessfull.
CFURLRef url;
Boolean flag;
FSRef ref;
OSErr error ,result, Err1;
HFSUniStr255 dataForkName;
SInt16 forkRefNum;
SInt64 forkSize;
UInt8 *forkData;
ByteCount actualRead;
CFDataRef dataRef = 0;
CFPropertyListRef propertyListRef = 0;
ByteCount *actualCount;
UInt8 * volname = NULL;
volname = "/CFURL.txt";
url = "" UInt8 *)volname,strlen((char*)volname),false);
flag = CFURLGetFSRef((CFURLRef)url , &ref);
result = FSGetDataForkName(&dataForkName);
result = FSOpenFork(&ref, dataForkName.length, dataForkName.unicode, fsRdPerm, &forkRefNum);
if (result == noErr)
{
result = FSGetForkSize(forkRefNum, &forkSize);
if (result != noErr)
{
forkData = malloc(forkSize);
if (forkData != NULL)
{
Err1= FSReadFork(forkRefNum,fsFromStart,0,
forkSize,&forkData, &actualCount);
}
free(forkData);
FSCloseFork(forkRefNum);
}
CFRelease(url);
}
DisposePtr(volname);
Please tell me where I making mistake in FSReadFork function call.
Thanks,
Pallavi. |