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-rw-r--r--nuttx/net/net_dup2.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/nuttx/net/net_dup2.c b/nuttx/net/net_dup2.c
deleted file mode 100644
index 3403a70c3..000000000
--- a/nuttx/net/net_dup2.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/****************************************************************************
- * net/net_dup2.c
- *
- * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/socket.h>
-#include <sched.h>
-#include <errno.h>
-#include <debug.h>
-
-#include "net_internal.h"
-
-#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0
-
-/****************************************************************************
- * Global Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Function: net_dup2
- *
- * Description:
- * Clone a socket descriptor to an arbitray descriptor number. If file
- * descriptors are implemented, then this is called by dup2() for the case
- * of socket file descriptors. If file descriptors are not implemented,
- * then this function IS dup2().
- *
- ****************************************************************************/
-
-#if CONFIG_NFILE_DESCRIPTORS > 0
-int net_dup2(int sockfd1, int sockfd2)
-#else
-int dup2(int sockfd1, int sockfd2)
-#endif
-{
- FAR struct socket *psock1;
- FAR struct socket *psock2;
- int err;
- int ret;
-
- /* Lock the scheduler throughout the following */
-
- sched_lock();
-
- /* Get the socket structures underly both descriptors */
-
- psock1 = sockfd_socket(sockfd1);
- psock2 = sockfd_socket(sockfd2);
-
- /* Verify that the sockfd1 and sockfd2 both refer to valid socket
- * descriptors and that sockfd2 corresponds to allocated socket
- */
-
- if (!psock1 || !psock2 || psock1->s_crefs <= 0)
- {
- err = EBADF;
- goto errout;
- }
-
- /* If sockfd2 also valid, allocated socket, then we will have to
- * close it!
- */
-
- if (psock2->s_crefs > 0)
- {
- net_close(sockfd2);
- }
-
- /* Duplicate the socket state */
-
- ret = net_clone(psock1, psock2);
- if (ret < 0)
- {
- err = -ret;
- goto errout;
- }
-
- sched_unlock();
- return OK;
-
-errout:
- sched_unlock();
- errno = err;
- return ERROR;
-}
-
-#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS > 0 */
-
-