106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
/****************************************************************************
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* net/local/local_bind.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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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