5a508351e4
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@398 42af7a65-404d-4744-a932-0658087f49c3
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/****************************************************************************
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* net/net-close.c
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*
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* Copyright (C) 2007 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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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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#ifdef CONFIG_NET
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <errno.h>
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#include "net-internal.h"
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/****************************************************************************
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* Global Functions
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****************************************************************************/
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/****************************************************************************
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* Function: net_close
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*
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* Description:
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* Performs the close operation on socket descriptors
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*
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* Parameters:
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* sockfd Socket descriptor of socket
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*
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* Returned Value:
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* 0 on success; -1 on error with errno set appropriately.
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*
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* Assumptions:
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*
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****************************************************************************/
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int net_close(int sockfd)
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{
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FAR struct socket *psock = sockfd_socket(sockfd);
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int err;
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/* Verify that the sockfd corresponds to valid, allocated socket */
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if (!psock || psock->s_crefs <= 0)
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{
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err = EBADF;
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goto errout;
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}
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/* Perform uIP side of the close depending on the protocol type */
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switch (psock->s_type)
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{
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#ifdef CONFIG_NET_TCP
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case SOCK_STREAM:
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{
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struct uip_conn *conn = psock->s_conn;
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uip_unlisten(conn);
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uip_tcpfree(conn);
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}
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break;
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#endif
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#ifdef CONFIG_NET_UDP
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case SOCK_DGRAM:
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uip_udpfree(psock->s_conn);
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break;
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#endif
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default:
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err = -EBADF;
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goto errout;
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}
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/* Then release the socket structure containing the connection */
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sockfd_release(sockfd);
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return OK;
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errout:
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*get_errno_ptr() = err;
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return ERROR;
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}
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#endif /* CONFIG_NET */
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