https://blog.octo.com/en/untar-on-ios-the-pragmatic-way/
- Extract files and directories created with the tar -cf command
- Work with 512 block or multiple (tar -b512 or just tar)
- Extract compressed files and directories created with the tar -czf command
- Work with unix right and ownership
- Work with no standard block size
##How to use
NSData* tarData = [NSData dataWithContentsOfFile:@"/path/to/your/tar/file.tar"];
NSError *error;
[[NSFileManager defaultManager] createFilesAndDirectoriesAtPath:@"/path/to/your/extracted/files/" withTarData:tarData error:&error];
Remember that you can't write outside your app directory