validation

func HTTPURL ¶

func HTTPURL(name, value string) error

func TCPPort ¶

func TCPPort(name string, port int) error

TCPPort validates that port is a valid TCP/UDP port number.

Note: the well-known port range (0-1023) being "reserved" only matters when *binding/listening* on a local port (often requires elevated privileges on Unix-like systems). For client connections, any valid port in 1-65535 is acceptable.