debian man page for socket_send4

socket_send4(3) 					     Library Functions Manual						   socket_send4(3)

NAME
       socket_send4 - send a UDP datagram

SYNTAX
       #include <socket.h>

       ssize_t socket_send4(int s, const char* buf, size_t len,
			const char ip[4],uint16 port);

DESCRIPTION
       socket_send4 sends len bytes starting at buf in a UDP datagram over the socket s to UDP port port on IP address ip.

       You can call socket_send4 without calling socket_bind4.	This has the effect as first calling socket_bind4 with IP address 0.0.0.0 and port
       0.

RETURN VALUE
       socket_send4 returns 0 if the datagram was sent successfully.  If not, it returns -1 and sets errno appropriately.

EXAMPLE
	 #include <socket.h>

	 int s;
	 char ip[4];
	 uint16 p;

	 s = socket_tcp4();
	 socket_bind4(s,ip,p);
	 socket_send4(s,"hello, world",12,ip,p);

SEE ALSO
       socket_send6(3)

																   socket_send4(3)