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.TH socket_info 3
.SH NAME
socket_info \- retrieving IP connection information for an existing socket
.SH SYNTAX
.B #include \(dqsocket_if.h\(dq
int \fBsocket_local\fP(int \fIs\fR,char \fIip\fR[16],
uint16 *\fIport\fR,uint32 *\fIscope_id\fR);
int \fBsocket_remote\fP(int \fIs\fR,char \fIip\fR[16],
uint16 *\fIport\fR,uint32 *\fIscope_id\fR);
.SH DESCRIPTION
.B socket_local
returns the local IPv6 or IPv4-mapped IPv6 address as \fIip\fR,
port as \fIport\fR and perhaps the scope_id as \fIscope_id\fR for the UDP or TCP socket.
.B socket_remote
returns the remote IPv6 or IPv4-mapped IPv6 address as \fIip\fR,
port as \fIport\fR and perhaps the scope_id as \fIscope_id\fR for the UDP or TCP socket.
.SH "RETURN CODES"
If something goes wrong,
.B socket_local
and
.B socket_remote
return
.IR -1 ,
setting
.I errno
appropriately.
.SH EXAMPLE
#include <socket_if.h>
int \fIs\fR;
char \fIip\fR[16];
uint16 \fIport\fR;
if (socket_remote(s,ip,&port,0) == -1)
err_tmp("",111,"unable to get remote address: ");
.SH "SEE ALSO"
socket_if(3),
socket_bind(3),
socket_connect(3),
socket_recv(3),
socket_send(3),
socket_setup(3),
socket_tcp(3),
socket_udp(3)
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