[arpwatch] fix -i with invalid interface specified

[aledvink]

commit 12acff196f14aa2fa2c910afa3c3d7b886e736c2
Author: Ales Ledvinka <aledvink at redhat.com>
Date:   Mon Oct 15 17:11:25 2012 +0200

    fix -i with invalid interface specified

 arpwatch-2.1a15-lookupiinvalid.patch |   12 ++++++++++++
 arpwatch.spec                        |    7 ++++++-
 2 files changed, 18 insertions(+), 1 deletions(-)
---
diff --git a/arpwatch-2.1a15-lookupiinvalid.patch b/arpwatch-2.1a15-lookupiinvalid.patch
new file mode 100644
index 0000000..c524c74
--- /dev/null
+++ b/arpwatch-2.1a15-lookupiinvalid.patch
@@ -0,0 +1,12 @@
+diff -up ./arpwatch.c.iinval ./arpwatch.c
+--- ./arpwatch.c.iinval	2012-10-15 16:55:58.646218256 +0200
++++ ./arpwatch.c	2012-10-15 17:04:30.566199946 +0200
+@@ -171,7 +171,7 @@ try_dev(char *interface, pcap_t **pd, in
+ 	timeout = 1000;
+ 
+ 	*pd = pcap_open_live(interface, snaplen, 1, timeout, errbuf);
+-	if (NULL == pd) {
++	if (NULL == *pd) {
+ 		syslog(LOG_ERR, "pcap open %s: %s", interface,  errbuf);
+ 		return NULL;
+ 	}
diff --git a/arpwatch.spec b/arpwatch.spec
index 285c8fe..92c0a39 100644
--- a/arpwatch.spec
+++ b/arpwatch.spec
@@ -3,7 +3,7 @@
 Name: arpwatch
 Epoch: 14
 Version: 2.1a15
-Release: 24%{?dist}
+Release: 25%{?dist}
 Summary: Network monitoring tools for tracking IP addresses on a network
 Group: Applications/System
 License: BSD with advertising
@@ -36,6 +36,7 @@ Patch11: arpwatch-exitcode.patch
 Patch12: arpwatch-2.1a15-dropgroup.patch
 Patch13: arpwatch-2.1a15-devlookup.patch
 Patch14: arpwatch-2.1a15-lookupiselect.patch
+Patch15: arpwatch-2.1a15-lookupiinvalid.patch
 
 %description
 The arpwatch package contains arpwatch and arpsnmp.  Arpwatch and
@@ -64,6 +65,7 @@ network.
 %patch12 -p1 -b .dropgroup
 %patch13 -p1 -b .devlookup
 %patch14 -p1 -b .iselect
+%patch15 -p1 -b .iinval
 
 %build
 %configure
@@ -141,6 +143,9 @@ fi
 %attr(-,arpwatch,arpwatch) %verify(not md5 size mtime) %config(noreplace) %{_vararpwatch}/ethercodes.dat
 
 %changelog
+* Mon Oct 15 2012 Ales Ledvinka <aledvink at redhat.com> - 14:2.1a15-25
+- fix -i with invalid interface specified (#842660)
+
 * Mon Oct 15 2012 Ales Ledvinka <aledvink at redhat.com> - 14:2.1a15-24
 - fix devlookup to start with -i interface specified (#842660)