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socket_recv4(3)       DragonFly Library Functions Manual       socket_recv4(3)

NAME
       socket_recv4 - receive a UDP datagram

SYNTAX
       #include <socket.h>

       ssize_t socket_recv4(int s, char* buf, size_t len,
                        char ip[4],uint16* port);

DESCRIPTION
       socket_recv4 receives up to len bytes starting at buf from a UDP
       datagram coming in on the socket s.  It writes the UDP port to port and
       the IP address to ip, and returns the number of bytes actually received
       (or -1 if anything went wrong).

RETURN VALUE
       socket_recv4 returns the number of bytes in the datagram if one was
       received.  If not, it returns -1 and sets errno appropriately.

EXAMPLE
         #include <socket.h>

         int s;
         char ip[4];
         uint16 p;
         char buf[1000];
         int len;

         s = socket_tcp4();
         socket_bind4(s,ip,p);
         len = socket_recv4(s,buf,sizeof(buf),ip,&p);

SEE ALSO
       socket_recv6(3)

                                                               socket_recv4(3)