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diff --git a/nuttx/net/accept.c b/nuttx/net/accept.c
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+/****************************************************************************
+ * net/accept.c
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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>
+#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <errno.h>
+
+#include "net-internal.h"
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: accept
+ *
+ * Description:
+ *   The accept function is used with connection-based socket types
+ *   (SOCK_STREAM, SOCK_SEQPACKET and SOCK_RDM). It extracts the first
+ *   connection request on the queue of pending connections, creates a new
+ *   connected socket with mostly the same properties as 'sockfd', and
+ *   allocates a new socket descriptor for the socket, which is returned. The
+ *   newly created socket is no longer in the listening state. The original
+ *   socket 'sockfd' is unaffected by this call.  Per file descriptor flags
+ *   are not inherited across an accept.
+ *
+ *   The 'sockfd' argument is a socket descriptor that has been created with
+ *   socket(), bound to a local address with bind(), and is listening for
+ *   connections after a call to listen().
+ *
+ *   On return, the 'addr' structure is filled in with the address of the
+ *   connecting entity. The 'addrlen' argument initially contains the size
+ *   of the structure pointed to by 'addr'; on return it will contain the
+ *   actual length of the address returned.
+ *
+ *   If no pending connections are present on the queue, and the socket is
+ *   not marked as non-blocking, accept blocks the caller until a connection
+ *   is present. If the socket is marked non-blocking and no pending
+ *   connections are present on the queue, accept returns EAGAIN.
+ *
+ * Parameters:
+ *   sockfd   The listening socket descriptior
+ *   addr     Receives the address of the connecting client
+ *   addrlen  Input: allocated size of 'addr', Return: returned size of 'addr'
+ *
+ * Returned Value:
+ *  Returns -1 on error. If it succeeds, it returns a non-negative integer
+ *  that is a descriptor for the accepted socket.
+ *
+ * EAGAIN or EWOULDBLOCK
+ *   The socket is marked non-blocking and no connections are present to
+ *   be accepted.
+ * EBADF
+ *   The descriptor is invalid.
+ * ENOTSOCK
+ *  The descriptor references a file, not a socket.
+ * EOPNOTSUPP
+ *   The referenced socket is not of type SOCK_STREAM.
+ * EINTR
+ *   The system call was interrupted by a signal that was caught before
+ *   a valid connection arrived.
+ * ECONNABORTED
+ *   A connection has been aborted.
+ * EINVAL
+ *   Socket is not listening for connections.
+ * EMFILE
+ *   The per-process limit of open file descriptors has been reached.
+ * ENFILE
+ *   The system maximum for file descriptors has been reached.
+ * EFAULT
+ *   The addr parameter is not in a writable part of the user address
+ *   space.
+ * ENOBUFS or ENOMEM
+ *   Not enough free memory.
+ * EPROTO
+ *   Protocol error.
+ * EPERM
+ *   Firewall rules forbid connection.
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
+{
+  *get_errno_ptr() = ENOSYS;
+  return ERROR;
+}
+
+#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */