Resync new repository with old repo r5166

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5153 42af7a65-404d-4744-a932-0658087f49c3
2026-10-25 14:33:33 +08:00 · 2012-09-17 18:18:44 +00:00
commit 57623d42eb
5691 changed files with 1361853 additions and 0 deletions
@@ -0,0 +1,115 @@
+/****************************************************************************
+ * apps/netutils/telnetd/telnetd.c
+ *
+ *   Copyright (C) 2012 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.
+ *
+ ****************************************************************************/
+
+#ifndef __APPS_NETUTILS_TELNETD_TELNETD_H
+#define __APPS_NETUTILS_TELNETD_TELNETD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* This structure represents the overall state of one telnet daemon instance
+ * (Yes, multiple telnet daemons are supported).
+ */
+
+struct telnetd_s
+{
+  int                   port;      /* The port to listen on (in network byte order) */
+  int                   priority;  /* The execution priority of the spawned task, */
+  int                   stacksize; /* The stack size needed by the spawned task */
+  main_t                entry;     /* The entrypoint of the task to spawn when a new
+                                    * connection is accepted. */
+};
+
+/* This structure is used to passed information to telnet daemon when it 
+ * started.  It contains global information visable to all telnet daemons.
+ */
+
+struct telnetd_common_s
+{
+  uint8_t               ndaemons;  /* The total number of daemons running */
+  sem_t                 startsem;  /* Enforces one-at-a-time startup */
+  sem_t                 exclsem;   /* Enforces exclusive access to 'minor' */
+  FAR struct telnetd_s *daemon;    /* Describes the new daemon */
+  int                   minor;     /* The next minor number to use */
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/* This structure is used to passed information to telnet daemon when it 
+ * started.  It contains global information visable to all telnet daemons.
+ */
+
+extern struct telnetd_common_s g_telnetdcommon;
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: telnetd_driver
+ *
+ * Description:
+ *   Create a character driver to "wrap" the telnet session.  This function
+ *   will select and return a unique path for the new telnet device.
+ *
+ * Parameters:
+ *   sd - The socket descriptor that represents the new telnet connection.
+ *   daemon - A pointer to the structure representing the overall state of
+ *     this instance of the telnet daemon.
+ *
+ * Return:
+ *   An allocated string represent the full path to the created driver.  The
+ *   receiver of the string must de-allocate this memory when it is no longer
+ *   needed.  NULL is returned on a failure. 
+ *
+ ****************************************************************************/
+
+FAR char *telnetd_driver(int sd, FAR struct telnetd_s *daemon);
+
+#endif /* __APPS_NETUTILS_TELNETD_TELNETD_H */
+