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17 lines
577 B
17 lines
577 B
.TH socket_mcttl4 3 |
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.SH NAME |
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socket_mcttl4 \- set multicast ttl |
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.SH SYNTAX |
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.B #include <socket.h> |
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int \fBsocket_mcttl4\fP(int \fIs\fR,char \fITTL\fR); |
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.SH DESCRIPTION |
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socket_mcttl4 sets the TTL of outgoing multicast packets on the socket |
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\fIs\fR. Each router decrements the packet TTL by one and discards the |
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packet if the TTL reaches zero. Setting the TTL to 1, for example, will |
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limit the packet propagation to the LAN. |
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If something goes wrong, socket_mcttl4 returns -1, setting errno |
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appropriately. |
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.SH "SEE ALSO" |
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socket_mcttl6(3), socket_mcjoin4(3), socket_mcleave4(3)
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