.TH socket_accept4 3
.SH NAME
socket_accept4 \- accept an IPv4 TCP connection on a socket
.SH SYNTAX
.B #include <libowfat/socket.h>

int \fBsocket_accept4\fP(int \fIs\fR,char \fIip\fR[4],uint16 *\fIport\fR);
.SH DESCRIPTION
When a TCP connection arrives on a listening TCP socket \fIs\fR, the
socket becomes readable.

socket_accept4 accepts the connection.  It sets \fIip\fR and \fIport\fR
to the client IP address and client TCP port.  It creates a new socket
for the connection, and returns a file descriptor pointing to the new
socket; you can use the read and write system calls to transmit data
through that file descriptor.

If something goes wrong, socket_accept4 returns -1, setting errno
appropriately, without creating a new socket.

.SH EXAMPLE
  #include <libowfat/socket.h>

  int \fIs\fR;
  char \fIip\fR[4];
  uint16 \fIp\fR;

  \fIs\fR = socket_tcp4();
  socket_bind4(s,ip,p);
  socket_listen(s,16);
  socket_accept4(s,ip,&p);

.SH "SEE ALSO"
socket_accept6(3), socket_connected(3)