nuttx/libs/libc/net/lib_recvmsg.c
Alin Jerpelea b5d4a01821 libs: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-03 18:52:53 -08:00

76 lines
2.4 KiB
C

/****************************************************************************
* libc/net/lib_recvmsg.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#if defined(CONFIG_NET) && !defined(CONFIG_NET_CMSG)
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: recvmsg
*
* Description:
* The recvmsg() call is identical to recvfrom() with a NULL from
* parameter.
*
* Parameters:
* sockfd Socket descriptor of socket
* buf Buffer to receive data
* len Length of buffer
* flags Receive flags
*
* Returned Value:
* (see recvfrom)
*
* Assumptions:
*
****************************************************************************/
ssize_t recvmsg(int sockfd, FAR struct msghdr *msg, int flags)
{
FAR void *buf = msg->msg_iov->iov_base;
FAR struct sockaddr *from = msg->msg_name;
FAR socklen_t *fromlen = (FAR socklen_t *)&msg->msg_namelen;
size_t len = msg->msg_iov->iov_len;
if (msg->msg_iovlen == 1)
{
return recvfrom(sockfd, buf, len, flags, from, fromlen);
}
else
{
set_errno(ENOTSUP);
return ERROR;
}
}
#endif /* CONFIG_NET && !CONFIG_NET_CMSG */