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+= nn_bind(3compat)
+//
+// Copyright 2020 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
+
+nn_bind - accept connections from remote peers (compatible API)
+
+== SYNOPSIS
+
+[source, c]
+----
+#include <nanomsg/nn.h>
+
+int nn_bind(int sock, const char *url)
+----
+
+== DESCRIPTION
+
+The `nn_bind()` function arranges for the socket _sock_ to
+accept connections at the address specified by _url_.
+An identifier for this socket's association with the _url_ is
+returned to the caller on success.
+This identfier can be used with
+xref:nn_shutdown.3compat.adoc[`nn_shutdown()`] to
+remove the association later.
+
+NOTE: This function is provided for API
+xref:nng_compat.3compat.adoc[compatibility] with legacy _libnanomsg_.
+Consider using the relevant xref:libnng.3.adoc[modern API] instead.
+
+NOTE: The bind operation is performed asynchronously, and may not have
+completed before this function returns control to the caller.
+
+IMPORTANT: Only transports supported by legacy _libnanomsg_ may be
+used with this function.
+In particular, only the schemes `tcp://`, `ipc://`, `inproc://`, and `ws://` are
+supported with this function.
+(Use the xref:libnng.3.adoc[modern API] to use other schemes.)
+
+== RETURN VALUES
+
+This function returns a positive identifier on success, and -1 on error.
+
+== ERRORS
+
+[horizontal]
+`EADDRINUSE`:: The address specified by _url_ is already in use.
+`EADDRNOTAVAIL`:: The address specified by _url_ is not available.
+`EBADF`:: The socket _sock_ is not open.
+`EINVAL`:: An invalid _url_ was supplied.
+
+== SEE ALSO
+
+[.text-left]
+xref:nn_connect.3compat.adoc[nn_connect(3compat)],
+xref:nn_errno.3compat.adoc[nn_errno(3compat)],
+xref:nn_shutdown.3compat.adoc[nn_shutdown(3compat)],
+xref:nn_socket.3compat.adoc[nn_socket(3compat)],
+xref:nng_compat.3compat.adoc[nn_compat(3compat)],
+xref:nng.7.adoc[nng(7)]