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authorDaniel Borkmann <daniel@iogearbox.net>2015-04-21 12:23:13 +0200
committerDaniel Borkmann <daniel@iogearbox.net>2015-04-21 12:23:13 +0200
commit42ca7e42aa76ee52499ae82370d11d044e811f35 (patch)
treeadffcdc849116db639441194a37cb0c001003904
parent264ef01ddd743c8832fcc142b460fc13dc749138 (diff)
netsniff-ng: fix snooping on any device when no option is given
Commit f43bbe9e895a ("mac80211: Check existence of generated monX device") broke starting netsniff-ng w/o any arguments, that is, sniffing on "any" device. The test in device_ifindex() should be index < 0. Fixes: f43bbe9e895a ("mac80211: Check existence of generated monX device") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
-rw-r--r--dev.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/dev.c b/dev.c
index 45659a8..aa0ca4e 100644
--- a/dev.c
+++ b/dev.c
@@ -39,7 +39,8 @@ int device_ifindex_get(const char *ifname)
int device_ifindex(const char *ifname)
{
int index = device_ifindex_get(ifname);
- if (unlikely(index <= 0))
+
+ if (unlikely(index < 0))
panic("Cannot get ifindex from device!\n");
return index;