[PATCH] Force interface up before checking link status (#525071).

[David Cantrell <dcantrell@xxxxxxxxxx>]

---
 isys/linkdetect.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/isys/linkdetect.c b/isys/linkdetect.c
index cffdd89..f97a291 100644
--- a/isys/linkdetect.c
+++ b/isys/linkdetect.c
@@ -143,6 +143,20 @@ int get_link_status(char * devname) {
         return -1;
     }
 
+    /* make sure interface is up and activated */
+    memset(&ifr, 0, sizeof(ifr));
+    strcpy(ifr.ifr_name, devname);
+
+    if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
+        return -1;
+    }
+
+    ifr.ifr_flags |= (IFF_UP | IFF_RUNNING);
+
+    if (ioctl(sock, SIOCSIFFLAGS, &ifr) < 0) {
+        return -1;
+    }
+
     /* Setup our control structures. */
     memset(&ifr, 0, sizeof(ifr));
     strcpy(ifr.ifr_name, devname);
-- 
1.6.2.5

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