ObjFW  Check-in [85f7e202b1]

@end

/**
 * An OFException indicating an attempt to connect or bind an already connected
 * or bound socket 
 */
@interface OFAlreadyConnectedException: OFException {}
/**
 * \return An error message for the exception as a C string.
 */
- (char*)cString;
@end

/**
 * An OFException indicating that the specified port is invalid.
 */
@interface OFInvalidPortException: OFException
/**
 * \return An error message for the exception as a C string.
 */
- (char*)cString;
@end

{
	if (string != NULL)
		return string;

	asprintf(&string, "The socket of type %s is already connected or bound "
	    "and thus can't be connected or bound again!", [object name]);

	return string;
}
@end

@implementation OFInvalidPortException
- (char*)cString
{
	if (string != NULL)
		return string;

	asprintf(&string, "The port specified is not valid for a socket of "
	    "type %s! This usually means you tried to use port 0, which is an "
	    "invalid port.", [object name]);

	return string;
}
@end

- connectTo: (const char*)host
     onPort: (uint16_t)port
{
	struct addrinfo hints, *res, *res0;
	char portstr[6];

	if (!port) {
		/* FIXME: Throw exception */
	if (!port)
		@throw [OFInvalidPortException newWithObject: self];
		return nil;
	}

	if (sock >= 0)
		@throw [OFAlreadyConnectedException newWithObject: self];

	memset(&hints, 0, sizeof(struct addrinfo));
	hints.ai_family = AF_UNSPEC;
	hints.ai_socktype = SOCK_STREAM;

-    bindOn: (const char*)host
   withPort: (uint16_t)port
  andFamily: (int)family
{
	struct addrinfo hints, *res;
	char portstr[6];

	if (!port) {
		/* FIXME: Throw exception */
	if (!port)
		@throw [OFInvalidPortException newWithObject: self];
		return nil;
	}

	if (sock >= 0)
		@throw [OFAlreadyConnectedException newWithObject: self];

	if ((sock = socket(family, SOCK_STREAM, 0)) < 0) {
		/* FIXME: Throw exception */
		return nil;