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.TH socket_broadcast 3
.SH NAME
socket_broadcast \- set UDP socket to broadcast mode
.SH SYNTAX
.B #include <libowfat/socket.h>
int \fBsocket_broadcast\fP(int \fIs\fR);
.SH DESCRIPTION
socket_broadcast sets UDP socket \fIs\fR to broadcast mode.
socket_send4 and socket_send6 will fail to send packets to the broadcast
address unless socket_broadcast is called before.
Normally socket_broadcast returns 0.
If anything goes wrong, socket_broadcast returns -1, setting errno
appropriately.
.SH EXAMPLE
#include <libowfat/socket.h>
int \fIs\fR;
if ((\fIs\fR=socket_udp6())==-1)
strerr_die2sys(111,FATAL,"unable to create UDP socket: ");
if (socket_broadcast(\fIs\fR) == -1)
strerr_die2sys(111,FATAL,"unable to set broadcast mode: ");
.SH "SEE ALSO"
socket_send4(3), socket_send6(3)
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