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.TH socket_mcjoin4 3
.SH NAME
socket_mcjoin4 \- join a multicast group
.SH SYNTAX
.B #include <socket.h>
int \fBsocket_mcjoin4\fP(int \fIs\fR,const char \fIgroupip\fR[4],const char \fIinterface\fR[4]);
.SH DESCRIPTION
socket_mcjoin4 joins the IPv4 multicast group \fIgroupip\fR on \fIinterface\fR.
TODO
socket \fIs\fR and writes the IP address to \fIip\fR and the port to
\fIport\fR.
If something goes wrong, socket_local4 returns -1, setting errno
appropriately.
.SH "SEE ALSO"
socket_accept4(3), socket_remote4(3)