Handling output of a NSTask

gistfile1.m

        NSTask* task = [[NSTask alloc] init];
        {            
            [task setStandardOutput:[NSPipe pipe]];
            [task setStandardError:[NSPipe pipe]];
            [task setLaunchPath:...];
            [task setArguments:...];
            [task setTerminationHandler:^(NSTask* task)
            {           
                if ([task terminationStatus] == 0)
                {
                    NSPipe* outPipe = task.standardOutput;
                    NSData* output = [[outPipe fileHandleForReading] readDataToEndOfFile];
                    NSString* result = [[NSString alloc] initWithData:output encoding:NSUTF8StringEncoding];
                }
                else
                {
                    NSPipe* errorPipe = task.standardError;
                    NSData* error = [[errorPipe fileHandleForReading] readDataToEndOfFile];
                    NSString* result = [[NSString alloc] initWithData:error encoding:NSUTF8StringEncoding];
                }
            }];
        }
        [task launch];