89 lines
3.4 KiB
C
89 lines
3.4 KiB
C
/****************************************************************************
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* net/udp/udp_psock_send.c
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*
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* Copyright (C) 2015, 2018 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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#include <sys/types.h>
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#include <assert.h>
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#include <errno.h>
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#include <nuttx/net/net.h>
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#include "socket/socket.h"
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#include "udp/udp.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: psock_udp_send
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*
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* Description:
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* Implements send() for connected UDP sockets
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*
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****************************************************************************/
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ssize_t psock_udp_send(FAR struct socket *psock, FAR const void *buf,
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size_t len)
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{
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DEBUGASSERT(psock != NULL && psock->s_crefs > 0 && psock->s_conn != NULL);
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DEBUGASSERT(psock->s_type == SOCK_DGRAM);
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/* Was the UDP socket connected via connect()?
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* REVISIT: This same test is performed in psock_udp_sendto() where
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* -EDESTADDRREQ is returned. There is a fine distinction in the
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* meaning of the reported errors that I am not sure I have correct.
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*/
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if (!_SS_ISCONNECTED(psock->s_flags))
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{
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/* No, then it is not legal to call send() with this socket.
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* ENOTCONN - The socket is not connected or otherwise has not had
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* the peer pre-specified.
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*/
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return -ENOTCONN;
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}
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/* Let psock_sendto() do all of the work work */
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return psock_udp_sendto(psock, buf, len, 0, NULL, 0);
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}
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