- send SOCKET,MSG,FLAGS,TO
- send SOCKET,MSG,FLAGS
Sends a message on a socket. Takes the same flags as the system call of the same name. On unconnected sockets you must specify a destination to send TO, in which case it does a C
sendto. Returns the number of characters sent, or the undefined value if there is an error. The C system call sendmsg(2) is currently unimplemented. See UDP: Message Passing in perlipc for examples.