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/****************************************************************************
* net/local/local_bind.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#if defined(CONFIG_NET) && defined(CONFIG_NET_LOCAL)
#include <sys/socket.h>
#include <string.h>
#include <assert.h>
#include <nuttx/net/net.h>
#include "local/local.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: local_bind
*
* Description:
* This function implements the low-level parts of the standard local
* bind()operation.
*
****************************************************************************/
int psock_local_bind(FAR struct socket *psock,
FAR const struct sockaddr *addr, socklen_t addrlen)
{
FAR struct local_conn_s *conn;
FAR const struct sockaddr_un *unaddr =
(FAR const struct sockaddr_un *)addr;
int namelen;
DEBUGASSERT(psock && psock->s_conn && unaddr &&
unaddr->sun_family == AF_LOCAL &&
addrlen >= sizeof(sa_family_t));
conn = (FAR struct local_conn_s *)psock->s_conn;
/* Save the address family */
conn->lc_proto = psock->s_type;
/* No determine the type of the Unix domain socket by comparing the size
* of the address description.
*/
if (addrlen == sizeof(sa_family_t))
{
/* No sun_path... This is an un-named Unix domain socket */
conn->lc_type = LOCAL_TYPE_UNNAMED;
}
else
{
namelen = strnlen(unaddr->sun_path, UNIX_PATH_MAX-1);
if (namelen <= 0)
{
/* Zero-length sun_path... This is an abstract Unix domain socket */
conn->lc_type = LOCAL_TYPE_ABSTRACT;
conn->lc_path[0] = '\0';
}
else
{
/* This is an normal, pathname Unix domain socket */
conn->lc_type = LOCAL_TYPE_PATHNAME;
/* Copy the path into the connection structure */
(void)strncpy(conn->lc_path, unaddr->sun_path, UNIX_PATH_MAX-1);
conn->lc_path[UNIX_PATH_MAX-1] = '\0';
}
}
conn->lc_state = LOCAL_STATE_BOUND;
return OK;
}
#endif /* CONFIG_NET && CONFIG_NET_LOCAL */
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