6a3c2aded6
* Simplify EINTR/ECANCEL error handling 1. Add semaphore uninterruptible wait function 2 .Replace semaphore wait loop with a single uninterruptible wait 3. Replace all sem_xxx to nxsem_xxx * Unify the void cast usage 1. Remove void cast for function because many place ignore the returned value witout cast 2. Replace void cast for variable with UNUSED macro
121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
/****************************************************************************
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* net/local/local_bind.c
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#if defined(CONFIG_NET) && defined(CONFIG_NET_LOCAL)
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#include <sys/socket.h>
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#include <string.h>
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#include <assert.h>
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#include <nuttx/net/net.h>
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#include "local/local.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: local_bind
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*
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* Description:
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* This function implements the low-level parts of the standard local
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* bind()operation.
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*
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****************************************************************************/
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int psock_local_bind(FAR struct socket *psock,
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FAR const struct sockaddr *addr, socklen_t addrlen)
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{
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FAR struct local_conn_s *conn;
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FAR const struct sockaddr_un *unaddr =
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(FAR const struct sockaddr_un *)addr;
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int namelen;
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DEBUGASSERT(psock != NULL && psock->s_conn != NULL &&
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unaddr != NULL && unaddr->sun_family == AF_LOCAL &&
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addrlen >= sizeof(sa_family_t));
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conn = (FAR struct local_conn_s *)psock->s_conn;
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/* Save the address family */
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conn->lc_proto = psock->s_type;
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/* Now determine the type of the Unix domain socket by comparing the size
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* of the address description.
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*/
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if (addrlen == sizeof(sa_family_t))
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{
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/* No sun_path... This is an un-named Unix domain socket */
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conn->lc_type = LOCAL_TYPE_UNNAMED;
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}
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else
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{
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namelen = strnlen(unaddr->sun_path, UNIX_PATH_MAX - 1);
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if (namelen <= 0)
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{
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/* Zero-length sun_path... This is an abstract Unix domain socket */
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conn->lc_type = LOCAL_TYPE_ABSTRACT;
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conn->lc_path[0] = '\0';
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}
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else
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{
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/* This is an normal, pathname Unix domain socket */
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conn->lc_type = LOCAL_TYPE_PATHNAME;
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/* Copy the path into the connection structure */
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strncpy(conn->lc_path, unaddr->sun_path, UNIX_PATH_MAX - 1);
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conn->lc_path[UNIX_PATH_MAX - 1] = '\0';
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conn->lc_instance_id = -1;
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}
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}
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conn->lc_state = LOCAL_STATE_BOUND;
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return OK;
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}
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#endif /* CONFIG_NET && CONFIG_NET_LOCAL */
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