1 files changed, 107 insertions, 0 deletions
diff --git a/apps/netutils/netlib/netlib_getifstatus.c b/apps/netutils/netlib/netlib_getifstatus.c
new file mode 100644
index 000000000..ae0c760fc
--- /dev/null
+++ b/apps/netutils/netlib/netlib_getifstatus.c
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+/****************************************************************************
+ * netutils/netlib/netlib_getifflag.c
+ *
+ *   Copyright (C) 2007-2009, 2011, 2014 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>
+#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0
+
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include <netinet/in.h>
+#include <net/if.h>
+
+#include <apps/netutils/netlib.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: netlib_getifstatus
+ *
+ * Description:
+ *   Get the network driver ifup/ifdown status
+ *
+ * Parameters:
+ *   ifname   The name of the interface to use
+ *   flags    The interface flags returned by SIOCGIFFLAGS
+ *
+ * Return:
+ *   0 on sucess; -1 on failure
+ *
+ ****************************************************************************/
+
+int netlib_getifstatus(FAR const char *ifname, FAR uint8_t *flags)
+{
+  int ret = ERROR;
+  if (ifname)
+    {
+      /* Get a socket (only so that we get access to the INET subsystem) */
+
+      int sockfd = socket(PF_INET, NETLIB_SOCK_IOCTL, 0);
+      if (sockfd >= 0)
+        {
+          struct ifreq req;
+          memset (&req, 0, sizeof(struct ifreq));
+
+          /* Put the driver name into the request */
+
+          strncpy(req.ifr_name, ifname, IFNAMSIZ);
+
+          /* Perform the ioctl to ifup or ifdown status */
+
+          ret = ioctl(sockfd, SIOCGIFFLAGS, (unsigned long)&req);
+          if (!ret)
+            {
+              *flags = req.ifr_flags;
+            }
+
+          close(sockfd);
+        }
+    }
+
+  return ret;
+}
+
+#endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */