Zip file not created properly in iOS - ios

Question

I am writing all the NSLOG's to a text file and post it to the server on click of a table view cell . I convert the text file to zip file before I post it using NSURLConnection . However , There is Some garbage data present inside the Zip file posted , But the text file has the correct content. I am using SSZipArchive, The code that I use to post the file is
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *logFilePath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"Logger.txt"]];
NSString* zipfile = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"Logger.zip"]];
//create zip file, return true on success
BOOL isZipCreated=[SSZipArchive createZipFileAtPath:zipfile withContentsOfDirectory:logFilePath];
if (isZipCreated) {
NSLog(#"Zip file Created at Path : %#",zipfile);
NSString *contentOfZipFile = [NSString stringWithContentsOfFile:zipfile encoding:NSUTF8StringEncoding error:NULL];
NSData *zipData = [contentOfZipFile dataUsingEncoding:NSUTF8StringEncoding];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[zipData length]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:finalURL]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/zip" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:zipData ];
NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];
}
else {
NSLog(#"Zip create error");
}
Any assistance would be of great help.

Answer 1

You can use this library Objective-Zip, actually I have used this and its working fine for me.
Creating a Zip File:
ZipFile *zipFile= [[ZipFile alloc] initWithFileName:#"Logger.zip" mode:ZipFileModeCreate];
Adding a file to a zip file
ZipWriteStream *stream= [zipFile writeFileInZipWithName:#"Logger.txt" compressionLevel:ZipCompressionLevelBest];
[stream writeData:abcData];
[stream finishedWriting];
Reading a file from a zip file:
ZipFile *unzipFile= [[ZipFile alloc] initWithFileName:#"Logger.zip" mode:ZipFileModeUnzip];
[unzipFile goToFirstFileInZip];
ZipReadStream *read= [unzipFile readCurrentFileInZip];
NSMutableData *data= [[NSMutableData alloc] initWithLength:256];
int bytesRead= [read readDataWithBuffer:data];
[read finishedReading];
Hope this code will help you :)
Happy Coding!! ;)