socket_mcjoin4(3)socket_mcjoin4(3)NAMEsocket_mcjoin4 - join a multicast group
SYNTAX
#include <socket.h>
int socket_mcjoin4(int s,const char groupip[4],const char inter‐
face[4]);
DESCRIPTIONsocket_mcjoin4 joins the IPv4 multicast group groupip on interface.
If something goes wrong, socket_mcjoin4 returns -1, setting errno
appropriately.
SEE ALSOsocket_mcleave4(3), socket_mcjoin6(3), socket_getifidx(3)socket_mcjoin4(3)