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37 lines
1.2 KiB
37 lines
1.2 KiB
.TH socket_send6 3 |
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.SH NAME |
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socket_send6 \- send a UDP datagram |
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.SH SYNTAX |
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.B #include <socket.h> |
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ssize_t \fBsocket_send6\fP(int \fIs\fR, const char* \fIbuf\fR, size_t \fIlen\fR, |
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const char \fIip\fR[16], uint16 \fIport\fR, uint32 \fIscope_id\fR); |
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.SH DESCRIPTION |
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socket_send6 sends \fIlen\fR bytes starting at \fIbuf\fR in a UDP |
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datagram over the socket \fIs\fR to UDP port \fIport\fR on IP address |
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\fIip\fR. |
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You can call socket_send6 without calling socket_bind6. This has the |
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effect as first calling socket_bind6 with IP address :: and port 0. |
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The meaning of \fIscope_id\fR is dependent on the implementation and |
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IPv6 IP. On link-local IPv6 addresses it specifies the outgoing |
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interface index. The name (e.g. "eth0") for a given interface index can |
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be queried with getifname. \fIscope_id\fR should normally be set to 0. |
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.SH RETURN VALUE |
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socket_send6 returns 0 if the datagram was sent successfully. If not, |
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it returns -1 and sets errno 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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char \fIip\fR[16]; |
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uint16 \fIp\fR; |
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uint32 \fIscope_id\fR; |
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\fIs\fR = socket_tcp4(); |
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socket_bind6(s,ip,p); |
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socket_send6(s,"hello, world",12,ip,p,scope_id); |
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.SH "SEE ALSO" |
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socket_send4(3), socket_getifidx(3)
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