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socket_broadcast(3)   DragonFly Library Functions Manual   socket_broadcast(3)

NAME
       socket_broadcast - set UDP socket to broadcast mode

SYNTAX
       #include <socket.h>

       int socket_broadcast(int s);

DESCRIPTION
       socket_broadcast sets UDP socket s to broadcast mode.  socket_send4 and
       socket_send6 will fail to send packets to the broadcast address unless
       socket_broadcast is called before.

       Normally socket_broadcast returns 0.

       If anything goes wrong, socket_broadcast returns -1, setting errno
       appropriately.

EXAMPLE
         #include <socket.h>

         int s;

         if ((s=socket_udp6())==-1)
           strerr_die2sys(111,FATAL,"unable to create UDP socket: ");
         if (socket_broadcast(s) == -1)
           strerr_die2sys(111,FATAL,"unable to set broadcast mode: ");

SEE ALSO
       socket_send4(3), socket_send6(3)

                                                           socket_broadcast(3)