123 lines
4.0 KiB
C
123 lines
4.0 KiB
C
/****************************************************************************
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* net/udp/udp_psock_send.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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#include <sys/types.h>
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#include <string.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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* Function: 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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FAR struct udp_conn_s *conn;
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union
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{
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struct sockaddr addr;
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#ifdef CONFIG_NET_IPv4
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struct sockaddr_in addr4;
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#endif
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#ifdef CONFIG_NET_IPv6
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struct sockaddr_in6 addr6;
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#endif
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} to;
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socklen_t tolen;
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DEBUGASSERT(psock != NULL && psock->s_crefs > 0);
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DEBUGASSERT(psock->s_type != SOCK_DGRAM);
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conn = (FAR struct udp_conn_s *)psock->s_conn;
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DEBUGASSERT(conn);
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/* Was the UDP socket connected via connect()? */
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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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return -ENOTCONN;
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}
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/* Yes, then let psock_sendto to the work */
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#ifdef CONFIG_NET_IPv4
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#ifdef CONFIG_NET_IPv6
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if (conn->domain == PF_INET)
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#endif
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{
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tolen = sizeof(struct sockaddr_in);
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to.addr4.sin_family = AF_INET;
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to.addr4.sin_port = conn->rport;
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net_ipv4addr_copy(to.addr4.sin_addr.s_addr, conn->u.ipv4.raddr);
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}
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#endif /* CONFIG_NET_IPv4 */
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#ifdef CONFIG_NET_IPv6
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#ifdef CONFIG_NET_IPv4
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else
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#endif
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{
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tolen = sizeof(struct sockaddr_in6);
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to.addr6.sin6_family = AF_INET6;
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to.addr6.sin6_port = conn->rport;
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net_ipv6addr_copy(to.addr6.sin6_addr.s6_addr, conn->u.ipv6.raddr);
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}
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#endif /* CONFIG_NET_IPv6 */
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return psock_udp_sendto(psock, buf, len, 0, &to.addr, tolen);
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}
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