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.TH qlibs: socket_tcp 3
.SH NAME
socket_tcp \- setting up TCP sockets
.SH SYNTAX
.B #include \(dqsocket_if.h\(dq
int \fBsocket_tcp4\fP();
.br
int \fBsocket_tcp6\fP();
.br
int \fBsocket_tcp\fP();
.SH DESCRIPTION
.B socket_tcp4
creates a non-blocking TCP/IPv4 stream socket and
providing a file descriptor pointing to that socket.
.B socket_tcp6
creates a non-blocking TCP/IPv6 stream socket and
providing a file descriptor pointing to that socket.
.B socket_tcp
creates a non-blocking IPv6 TCP/IP socket calling
.B socket_tcp6
unless it can't bind to IPv6 and now facilitating
.BR socket_tcp4 .
.SH "REMOTE CODES"
All these routines return
.IR 0
except in case of failures, returning
.I -1
and setting
.I errno
appropriately, without allocating any resources.
.SH EXAMPLE
#include <socket_if.h>
int \fIt\fR;
char \fIlocalip\fR[16];
char \fIremoteip\fR[16];
uint16 \fIp\fR;
if (ip6_isv4mapped(remoteip)) {
t = socket_tcp4();
socket_bind4(t,localip + 12,0);
} else {
t = socket_tcp6();
socket_bind6(t,localip,0,0);
}
socket_connect(s,remoteip,p,0);
.SH "SEE ALSO"
socket_if(3),
socket_bind(3),
socket_connect(3),
socket_info(3),
socket_recv(3),
socket_send(3),
socket_setup(3),
socket_udp(3)
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