socket_mcttl4 - set multicast ttl

       socket_mcttl4  sets  the  TTL  of outgoing multicast packets on the socket s.  Each router decrements the
       packet TTL by one and discards the packet if the TTL reaches zero.  Setting the TTL to  1,  for  example,
       will limit the packet propagation to the LAN.

       If something goes wrong, socket_mcttl4 returns -1, setting errno appropriately.

       socket_mcttl4 - set multicast ttl

socket_mcttl6(3), socket_mcjoin4(3), socket_mcleave4(3)

                                                                                                socket_mcttl4(3)

#include<libowfat/socket.h>

       int socket_mcttl4(int s,char TTL);