.TH socket_connect4 3 .SH NAME socket_connect4 \- attempt to make a TCP connection .SH SYNTAX .B #include int \fBsocket_connect4\fP(int \fIs\fR,const char \fIip\fR[4],uint16 \fIport\fR); .SH DESCRIPTION socket_connect4 attempts to make a connection from TCP socket \fIs\fR to TCP port \fIport\fR on IP address \fIip\fR. socket_connect4 may return .sp 1 .IP \(bu 0, to indicate that the connection succeeded (and succeeded immediately, if the socket is non-blocking) .IP \(bu -1, setting errno to error_inprogress or error_wouldblock, to indicate that the socket is non-blocking .IP \(bu -1, setting errno to something else, to indicate that the connection failed (and failed immediately, if the socket is non-blocking). .PP When a background connection succeeds or fails, \fIs\fR becomes writable; you can use socket_connected to see whether the connection succeeded. If the connection failed, socket_connected returns 0, setting errno appropriately. Once a TCP socket is connected, you can use the read and write system calls to transmit data. You can call socket_connect4 without calling socket_bind4. This has the effect as first calling socket_bind4 with IP address 0.0.0.0 and port 0. .SH EXAMPLE #include int \fIs\fR; char \fIip\fR[4]; uint16 \fIp\fR; \fIs\fR = socket_tcp4(); socket_bind4(s,ip,p); socket_connect4(s,ip,p); .SH "SEE ALSO" socket_connect6(3)