1 files changed, 175 insertions, 0 deletions
diff --git a/apps/netutils/netlib/netlib_server.c b/apps/netutils/netlib/netlib_server.c
new file mode 100644
index 000000000..c6b3d1631
--- /dev/null
+++ b/apps/netutils/netlib/netlib_server.c
@@ -0,0 +1,175 @@
+/****************************************************************************
+ * netutils/netlib/uip_server.c
+ *
+ *   Copyright (C) 2007-2009, 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 Gregory Nutt 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/types.h>
+#include <sys/socket.h>
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <netinet/in.h>
+
+#include <apps/netutils/netlib.h>
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: uip_server
+ *
+ * Description:
+ *   Implement basic server logic
+ *
+ * Parameters:
+ *   portno    The port to listen on (in network byte order)
+ *   handler   The entrypoint of the task to spawn when a new connection is
+ *             accepted.
+ *   stacksize The stack size needed by the spawned task
+ *
+ * Return:
+ *   Does not return unless an error occurs.
+ *
+ ****************************************************************************/
+
+void uip_server(uint16_t portno, pthread_startroutine_t handler, int stacksize)
+{
+  struct sockaddr_in myaddr;
+#ifdef CONFIG_NET_HAVE_SOLINGER
+  struct linger ling;
+#endif
+  pthread_t child;
+  pthread_attr_t attr;
+  socklen_t addrlen;
+  int listensd;
+  int acceptsd;
+  int ret;
+
+  /* Create a new TCP socket to use to listen for connections */
+
+  listensd = uip_listenon(portno);
+  if (listensd < 0)
+    {
+      return;
+    }
+
+  /* Begin serving connections */
+
+  for (;;)
+    {
+      /* Accept the next connectin */
+
+      addrlen = sizeof(struct sockaddr_in);
+      acceptsd = accept(listensd, (struct sockaddr*)&myaddr, &addrlen);
+      if (acceptsd < 0)
+        {
+          ndbg("accept failure: %d\n", errno);
+          break;
+        }
+
+      nvdbg("Connection accepted -- spawning sd=%d\n", acceptsd);
+
+      /* Configure to "linger" until all data is sent when the socket is
+       * closed.
+       */
+
+#ifdef CONFIG_NET_HAVE_SOLINGER
+      ling.l_onoff  = 1;
+      ling.l_linger = 30;     /* timeout is seconds */
+
+      ret = setsockopt(acceptsd, SOL_SOCKET, SO_LINGER, &ling, sizeof(struct linger));
+      if (ret < 0)
+        {
+          close(acceptsd);
+          ndbg("setsockopt SO_LINGER failure: %d\n", errno);
+          break;
+        }
+#endif
+
+      /* Create a thread to handle the connection.  The socket descriptor is
+       * provided in as the single argument to the new thread.
+       */
+
+      (void)pthread_attr_init(&attr);
+      (void)pthread_attr_setstacksize(&attr, stacksize);
+
+      ret = pthread_create(&child, &attr, handler, (void*)acceptsd);
+      if (ret != 0)
+        {
+          /* Close the connection */
+
+          close(acceptsd);
+          ndbg("pthread_create failed\n");
+
+          if (ret == EAGAIN)
+            {
+              /* Lacked resources to create a new thread. This is a temporary
+               * condition, so we close this peer, but keep serving for
+               * other connections.
+               */
+
+              continue;
+            }
+
+          /* Something is very wrong... Break out and stop serving */
+
+          break;
+        }
+
+      /* We don't care when/how the child thread exits so detach from it now
+       * in order to avoid memory leaks.
+       */
+
+      (void)pthread_detach(child);
+    }
+
+  /* Close the listerner socket */
+
+  close(listensd);
+}