linux-scalability-benchmarks / libowfat / socket / socket_mcloop4.3

The default branch has multiple heads

.TH socket_mcloop4 3
socket_mcloop4 \- set multicast loopback
.B #include <socket.h>

int \fBsocket_mcloop4\fP(int \fIs\fR,char \fIloop\fR);
socket_mcloop4 activates multicast loopback for the socket \fIs\fR if
\fIloop\fR is non-zero, and deactivates it otherwise.  If loopback is
activated, packets sent on this socket will be received on the same

If something goes wrong, socket_mcloop4 returns -1, setting errno
socket_mcloop6(3), socket_mcjoin4(3), socket_mcleave4(3)
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