= nng_req_open(3)
//
// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This document is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt).  A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//

== NAME

nng_req_open - create rep socket

== SYNOPSIS

[source,c]
----
#include <nng/nng.h>
#include <nng/protocol/reqrep0/req.h>

int nng_req0_open(nng_socket *s);

int nng_req0_open_raw(nng_socket *s);
----

== DESCRIPTION

The `nng_req0_open()` function creates a <<nng_req.7#,_req_>> version 0
<<nng_socket.5#,socket>> and returns it at the location pointed to by _s_.

The `nng_req0_open_raw()` function creates a <<nng_req.7#,_req_>> version 0
<<nng_socket.5#,socket>> in
<<nng.7#raw_mode,raw>> mode
and returns it at the location pointed to by _s_.

== RETURN VALUES

These functions return 0 on success, and non-zero otherwise.

== ERRORS

[horizontal]
`NNG_ENOMEM`:: Insufficient memory is available.
`NNG_ENOTSUP`:: The protocol is not supported.

== SEE ALSO

[.text-left]
<<nng_options.5#,nng_options(5)>>,
<<nng_socket.5#,nng_socket(5)>>,
<<nng_rep.7#,nng_rep(7)>>,
<<nng_req.7#,nng_req(7)>>,
<<nng.7#,nng(7)>>