socket_mcloop4 - Man Page

#include <socket.h>

int socket_mcloop4(int s,char loop);

socket_mcloop4 activates multicast loopback for the socket s if loop is non-zero, and deactivates it otherwise.  If loopback is activated, packets sent on this socket will be received on the same host.

If something goes wrong, socket_mcloop4 returns -1, setting errno appropriately.

socket_mcloop6(3), socket_mcjoin4(3), socket_mcleave4(3)

socket_mcloop6(3).