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Upload image on server in Objective C

- (IBAction)uploadImage {
 /*
  turning the image into a NSData object
  getting the image back out of the UIImageView
  setting the quality to 90
 */
 NSData *imageData = UIImageJPEGRepresentation(image.image, 90);
 // setting up the URL to post to
 NSString *urlString = @"http://mozymac.com/upload.php";
 
 // setting up the request object now
 NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
 [request setURL:[NSURL URLWithString:urlString]];
 [request setHTTPMethod:@"POST"];
 
 /*
  add some header info now
  we always need a boundary when we post a file
  also we need to set the content type
  
  You might want to generate a random boundary.. this is just the same 
  as my output from wireshark on a valid html post
 */
 NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"];
 NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
 [request addValue:contentType forHTTPHeaderField: @"Content-Type"];
 
 /*
  now lets create the body of the post
 */
 NSMutableData *body = [NSMutableData data];
 [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
 [body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"userfile\"; filename=\".jpg\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
 [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
 [body appendData:[NSData dataWithData:imageData]];
 [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 // setting the body of the post to the reqeust
 [request setHTTPBody:body];
 
 // now lets make the connection to the web
 NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
 NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
 
 NSLog(returnString);
}