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