Unable to get Core Audio to write data to file

I have been unable to get any of the Core Audio write functions to write data to a sound file. I can read files, view the samples (they are correct), and create a new file with the correct format settings. The write functions do not return any errors, but they fail to write data to the file. I have been struggling with this for a few days and am hoping someone can help. Below is a very simple example. I'm just opening a 16-bit/44.1kHz aiff file and writing it to a new file (no conversions, no processing). What am I doing wrong here?

- (void)saveAudioFileToPath: (NSString*)str

{

ExtAudioFileRef infile, outfile;

OSStatus theErr = noErr;

CFStringRef inPath = CFStringCreateWithCString(NULL,

[str cStringUsingEncoding:NSUTF8StringEncoding],

kCFStringEncodingMacRoman );

CFURLRef inFileURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,

inPath,

kCFURLPOSIXPathStyle,

false );

CFStringRef outPath = CFStringCreateWithCString(NULL,

"/Users/home/soundfile.aif", /

kCFStringEncodingMacRoman );

CFURLRef outFileURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,

outPath,

kCFURLPOSIXPathStyle,

false );

theErr = ExtAudioFileOpenURL (inFileURL, &infile);

CheckError(theErr,"Error in saveAudioFileToPath: calling ExtAudioFileOpenURL()");

AudioStreamBasicDescription inFormat = {0};

UInt32 size = sizeof(inFormat);

theErr = ExtAudioFileGetProperty(infile,

kExtAudioFileProperty_FileDataFormat,

&size,

&inFormat);

CheckError(theErr,"Error in saveAudioFileToPath: calling ExtAudioFileGetProperty()");

SInt64 totalNumFrames = 0;

size = sizeof(totalNumFrames);

theErr = ExtAudioFileGetProperty(infile,

kExtAudioFileProperty_FileLengthFrames,

&size,

&totalNumFrames);

CheckError(theErr,"Error in saveAudioFileToPath: calling ExtAudioFileGetProperty()");

SInt16 *audioData = calloc(totalNumFrames, sizeof(SInt16));

AudioBufferList fillBufList;

UInt32 numFrames = (UInt32)totalNumFrames;

while (1) {

fillBufList.mNumberBuffers = 1;

fillBufList.mBuffers[0].mNumberChannels = inFormat.mChannelsPerFrame;

fillBufList.mBuffers[0].mDataByteSize = (UInt32)totalNumFrames * sizeof(SInt16);

fillBufList.mBuffers[0].mData = audioData;

theErr = ExtAudioFileRead (infile, &numFrames, &fillBufList);

CheckError(theErr,"Error in saveAudioFileToPath: calling ExtAudioFileRead()");

if (!numFrames) {

break;

}

}

SInt16 *ptr = fillBufList.mBuffers[0].mData;

SInt16 s;

for(int k = 0; k < numFrames; k++) {

s = CFSwapInt16BigToHost(*ptr);

ptr++;

}

AudioStreamBasicDescription outFormat = {0};

outFormat = inFormat;

outFormat.mReserved = 0;

theErr = ExtAudioFileCreateWithURL (outFileURL,

kAudioFileAIFFType,

&outFormat, NULL,

kAudioFileFlags_EraseFile,

&outfile);

CheckError(theErr,"Error in saveAudioFileToPath: calling ExtAudioFileCreateWithURL()");

size = sizeof(outFormat);

theErr = ExtAudioFileSetProperty(infile,

kExtAudioFileProperty_ClientDataFormat,

size,

&outFormat); /

CheckError(theErr,"Error in saveAudioFileToPath: calling ExtAudioFileSetProperty()");

while(1) {

theErr = ExtAudioFileWrite(outfile, numFrames, &fillBufList);

CheckError(theErr,"Error in saveAudioFileToPath: calling ExtAudioFileWrite()");

if (!numFrames) {

/

break;

}

}

ExtAudioFileDispose(infile);

ExtAudioFileDispose(outfile);

free(audioData);

return;

}