1 files changed, 151 insertions, 0 deletions
diff --git a/apps/netutils/ftpc/ftpc_rpwd.c b/apps/netutils/ftpc/ftpc_rpwd.c
new file mode 100644
index 000000000..091a12944
--- /dev/null
+++ b/apps/netutils/ftpc/ftpc_rpwd.c
@@ -0,0 +1,151 @@
+/****************************************************************************
+ * apps/netutils/ftpc/ftpc_rpwd.c
+ *
+ *   Copyright (C) 2011 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 "ftpc_config.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <debug.h>
+
+#include <apps/ftpc.h>
+
+#include "ftpc_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: ftpc_rpwd
+ *
+ * Descripton:
+ *   Returns the current working directory on the remote server.
+ *
+ ****************************************************************************/
+
+FAR char *ftpc_rpwd(SESSION handle)
+{
+  FAR struct ftpc_session_s *session = (FAR struct ftpc_session_s *)handle;
+  FAR char *start;
+  FAR char *end;
+  FAR char *pwd;
+  FAR char *ptr;
+  int len;
+  int ret;
+
+  /* Send the PWD command */
+
+  ret = ftpc_cmd(session, "PWD");
+
+  /* Response is like: 257 "/home/gnutt" (from vsftpd).
+   *
+   * Extract the quoated path name into allocated memory.
+   */
+
+  start = strchr(session->reply, '\"');
+  if (!start)
+    {
+      ndbg("Opening quote not found\n");
+      return NULL;
+    }
+  start++;
+ 
+  end = strchr(start, '\"');
+  if (!end)
+    {
+      ndbg("Closing quote not found\n");
+      return NULL;
+    }
+
+  /* Allocate memory for the path name:
+   *
+   *   Reply: 257 "/home/gnutt"
+   *               ^start     ^end
+   *
+   *   len = end - start + 1 = 11 (+ NUL terminator)
+   */
+ 
+  len = end - start + 1;
+  pwd = (char *)malloc(len + 1);
+  if (!pwd)
+    {
+      ndbg("Failed to allocate string\n");
+      return NULL;
+    }
+ 
+  /* Copy the string into the allocated memory */
+
+  memcpy(pwd, start, len);
+  pwd[len] = '\0';
+
+  /* Remove any trailing slashes that the server may have added */
+
+  ftpc_stripslash(pwd);
+
+  /* Change DOS style directory separator ('\') to UNIX style ('/') */
+
+  for (ptr = pwd; *ptr; ptr++)
+    {
+      if (*ptr == '\\')
+        {
+          *ptr = '/';
+        }
+    }
+  return pwd;
+}