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32 lines
896 B
Groff
32 lines
896 B
Groff
.TH socket_send4 3
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.SH NAME
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socket_send4 \- 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_send4\fP(int \fIs\fR, const char* \fIbuf\fR, size_t \fIlen\fR,
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const char \fIip\fR[4],uint16 \fIport\fR);
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.SH DESCRIPTION
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socket_send4 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_send4 without calling socket_bind4. This has the
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effect as first calling socket_bind4 with IP address 0.0.0.0 and port 0.
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.SH RETURN VALUE
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socket_send4 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[4];
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uint16 \fIp\fR;
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\fIs\fR = socket_tcp4();
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socket_bind4(s,ip,p);
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socket_send4(s,"hello, world",12,ip,p);
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.SH "SEE ALSO"
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socket_send6(3)
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