I’m trying to use NSStream’s SOCKS Proxy support, and I cannot seem to get it to work. I’ve written a class to wrap around the NSStream (for purposes of UnitTesting) and these are the two relevant methods:

• (BOOL) setProperty:(id)value forKey:(NSString *)key { BOOL success; NSLog(@”Value before set: %@ forKey: %@”, value, key); success = [stream setProperty:value forKey:key]; NSLog(@”Value after set: %@ forKey: %@”, [stream propertyForKey:key], key); return success; }

• (id) propertyForKey:(NSString *)key { return [stream propertyForKey:key]; }

Elsewhere I call this code:

• (BOOL) enableProxyWithHostname:(NSString *)hostname onPort:(int)port version:(int)version username:(NSString *)username password:(NSString *)password { BOOL success; NSArray *objects = [NSArray arrayWithObjects: hostname, [NSNumber numberWithInt:port], (version == 4 ? NSStreamSOCKSProxyVersion4 : NSStreamSOCKSProxyVersion5), username, password, nil];

  NSArray *keys = [NSArray arrayWithObjects: NSStreamSOCKSProxyHostKey, NSStreamSOCKSProxyPortKey, NSStreamSOCKSProxyVersionKey, NSStreamSOCKSProxyUserKey, NSStreamSOCKSProxyPasswordKey, nil];

  NSDictionary *proxyDictionary = [NSDictionary dictionaryWithObjects:objects forKeys:keys];

  NSLog(@”Dictionary %@”, proxyDictionary);

  success = [inputStream setProperty:proxyDictionary forKey:NSStreamSOCKSProxyConfigurationKey];
  if (success) { success = [outputStream setProperty:proxyDictionary forKey:NSStreamSOCKSProxyConfigurationKey]; }

  return success; }

When I call that third method it returns success! But, if I then check the stream, the property is nil. Any ideas?