apps/netutils/netlib: Add support for PktRadio IOCTL commands.

netutils/netlib/netlib_nodeaddrconv.c

@@ -0,0 +1,192 @@
+/****************************************************************************
+ * netutils/netlib/netlib_nodeaddrconv.c
+ *
+ *   Copyright (C) 2017 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 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>
+
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include "nuttx/wireless/pktradio.h"
+#include "netutils/netlib.h"
+
+#if defined(CONFIG_NET_6LOWPAN) && CONFIG_NSOCKET_DESCRIPTORS > 0
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static int get_nibble(char ch, FAR uint8_t *nibble)
+{
+  if (ch >= '0' && ch <= '9')
+    {
+      *nibble = (uint8_t)ch - '0';
+    }
+  else if (ch >= 'a' && ch <= 'f')
+    {
+      *nibble = (uint8_t)ch - 'a' + 10;
+    }
+  else if (ch >= 'A' && ch <= 'F')
+    {
+      *nibble = (uint8_t)ch - 'A' + 10;
+    }
+  else
+    {
+      return -EINVAL;
+    }
+
+  return OK;
+}
+
+static int get_byte(FAR const char *ptr, FAR uint8_t *byte)
+{
+  uint8_t accum1;
+  uint8_t accum2;
+  int ret;
+
+  ret = get_nibble(ptr[0], &accum1);
+  if (ret  < 0)
+    {
+      return ret;
+    }
+
+  ret = get_nibble(ptr[1], &accum2);
+  if (ret  < 0)
+    {
+      return ret;
+    }
+
+  *byte = accum1 << 4 | accum2;
+  return OK;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: netlib_nodeaddrconv
+ *
+ * Description:
+ *   Get the non-IEEE802.15.4 packet radio node address
+ *
+ * Parameters:
+ *   addrstr - A string representing the node address
+ *   nodeadd - Location to return the node address
+ *
+ * Return:
+ *   0 on success; -1 on failure.  errno will be set on failure.
+ *
+ ****************************************************************************/
+
+int netlib_nodeaddrconv(FAR const char *addrstr,
+                        FAR struct pktradio_addr_s *nodeaddr)
+{
+  uint8_t byte;
+  int ret;
+
+  DEBUGASSERT(addrstr != NULL && nodeaddr != NULL);
+
+  /* FORM: xx:xx:...:xx */
+
+  /* Tolerate leading blanks */
+
+  while (isblank(*addrstr))
+    {
+      addrstr++;
+    }
+
+  for (nodeaddr->pa_addrlen = 0;
+       nodeaddr->pa_addrlen < CONFIG_PKTRADIO_ADDRLEN;
+       )
+    {
+      /* Get the next byte in binary form */
+
+      ret = get_byte(addrstr, &byte);
+      if (ret < 0)
+        {
+          goto errout;
+        }
+
+      /* Save the byte */
+
+      addrstr += 2;
+      nodeaddr->pa_addr[nodeaddr->pa_addrlen] = byte;
+      nodeaddr->pa_addrlen++;
+
+      /* Tolerate blanks between bytes */
+
+      while (isblank(*addrstr))
+        {
+          addrstr++;
+        }
+
+      /* Continue to the next byte if there is a colon separator.  Return
+       * success if we are at the end of the string.  Anything other than
+       * {whitespace, :, NUL} is an error.
+       */
+
+      if (*addrstr == ':')
+        {
+          addrstr++;
+        }
+      else if (*addrstr == '\0')
+        {
+          return OK;
+        }
+      else
+        {
+          ret = -EINVAL;
+          goto errout;
+        }
+    }
+
+  ret = -E2BIG;
+
+errout:
+  errno = -ret;
+  return ERROR;
+}
+
+#endif /* CONFIG_NET_6LOWPAN && CONFIG_NSOCKET_DESCRIPTORS */