From 58205f362144d4133ccd8a691b4bd973e147db21 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Fri, 12 Dec 2008 18:33:36 +0000
Subject: Filename changes needed by ZDS archiver

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1452 42af7a65-404d-4744-a932-0658087f49c3
---
 nuttx/net/netdev_findbyaddr.c | 129 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 nuttx/net/netdev_findbyaddr.c

(limited to 'nuttx/net/netdev_findbyaddr.c')

diff --git a/nuttx/net/netdev_findbyaddr.c b/nuttx/net/netdev_findbyaddr.c
new file mode 100644
index 000000000..1b326b3ba
--- /dev/null
+++ b/nuttx/net/netdev_findbyaddr.c
@@ -0,0 +1,129 @@
+/****************************************************************************
+ * net/netdev_findbyaddr.c
+ *
+ *   Copyright (C) 2007, 2008 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 <string.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <net/uip/uip-arch.h>
+
+#include "net_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Priviate Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: netdev_maskcmp
+ ****************************************************************************/
+
+static inline boolean netdev_maskcmp(const uip_ipaddr_t *ipaddr,
+                                     const uip_ipaddr_t *raddr,
+                                     const uip_ipaddr_t *netmask)
+{
+#ifndef CONFIG_NET_IPv6
+  return (*ipaddr & *netmask) == (*raddr & *netmask);
+#else
+# warning "Not implemented for IPv6"
+#endif
+}
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: netdev_findbyaddr
+ *
+ * Description:
+ *   Find a previously registered network device by matching a remote address
+ *   with the subnet served by the device
+ *
+ * Parameters:
+ *   raddr - Pointer to the remote address of a connection
+ *
+ * Returned Value:
+ *  Pointer to driver on success; null on failure
+ *
+ * Assumptions:
+ *  Called from normal user mode
+ *
+ ****************************************************************************/
+
+FAR struct uip_driver_s *netdev_findbyaddr(const uip_ipaddr_t *raddr)
+{
+  struct uip_driver_s *dev;
+
+  if (raddr)
+    {
+      netdev_semtake();
+      for (dev = g_netdevices; dev; dev = dev->flink)
+        {
+          if (netdev_maskcmp(&dev->d_ipaddr, raddr, &dev->d_netmask))
+            {
+              netdev_semgive();
+              return dev;
+            }
+        }
+      netdev_semgive();
+    }
+  return NULL;
+}
+
+#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */
-- 
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