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40 lines
1.3 KiB
Groff
40 lines
1.3 KiB
Groff
.TH socket_bind6_reuse 3
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.SH NAME
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socket_bind6_reuse \- set the local IP address and port of a socket
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.SH SYNTAX
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.B #include <libowfat/socket.h>
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int \fBsocket_bind6_reuse\fP(int \fIs\fR,char \fIip\fR[16],uint16 \fIport\fR,
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uint32 \fIscope_id\fR);
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.SH DESCRIPTION
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socket_bind6_reuse sets the local IP address and TCP/UDP port of a
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TCP/UDP socket \fIs\fR to \fIip\fR and \fIport\fR respectively.
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If the IP address is ::, the operating system chooses a local IP
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address. If \fIport\fR is 0, the operating system chooses a port.
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Normally socket_bind6_reuse returns 0. If anything goes wrong,
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socket_bind6_reuse returns -1, setting errno appropriately.
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The \fIscope_id\fR should normally be zero, but for link-local addresses
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it specifies the interface number on which to bind. The interface
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number for a given network interface name can be found with
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\fBsocket_getifidx\fR.
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Unlike socket_bind6 this function will also tell the operating system
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that the address is to be reused soon, which turns off the normal pause
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before this IP and port can be bound again.
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.SH EXAMPLE
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#include <libowfat/socket.h>
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int \fIs\fR;
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char \fIip\fR[16];
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uint16 \fIp\fR;
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\fIs\fR = socket_tcp4();
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socket_bind6_reuse(s,ip,p);
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socket_connect4(s,ip,p);
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.SH "SEE ALSO"
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socket_bind6(3)
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