net-snmp: snmplib, UDPIPv6 transport: Add a missing return statement

Backport a succeeding commit from net-snmp upstream to fix the issue
introduced by commit
<BUG#a2584: Fix snmptrap to use clientaddr from snmp.conf>.
The missing return will cause crash when binding to a non-exist IPv6
address.

Signed-off-by: Li Zhou <li.zhou@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>

2 files changed, 30 insertions, 0 deletions

diff --git a/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-snmplib-UDPIPv6-transport-Add-a-missing-return-state.patch b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-snmplib-UDPIPv6-transport-Add-a-missing-return-state.patch
new file mode 100644
index 0000000000..6255f7ced3
--- /dev/null
+++ b/meta-networking/recipes-protocols/net-snmp/net-snmp/0001-snmplib-UDPIPv6-transport-Add-a-missing-return-state.patch
@@ -0,0 +1,29 @@
+From 1ee72102fbe722d232d74abc4660a8b134cec8d6 Mon Sep 17 00:00:00 2001
+From: Bart Van Assche <bvanassche@acm.org>
+Date: Sat, 23 May 2015 07:32:53 +0200
+Subject: [PATCH] snmplib, UDPIPv6 transport: Add a missing return statement
+
+Detected by Coverity.
+
+Upstream-Status: backport
+
+Signed-off-by: Li Zhou <li.zhou@windriver.com>
+---
+ snmplib/transports/snmpUDPIPv6Domain.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/snmplib/transports/snmpUDPIPv6Domain.c b/snmplib/transports/snmpUDPIPv6Domain.c
+index 029b164..11c39bb 100644
+--- a/snmplib/transports/snmpUDPIPv6Domain.c
++++ b/snmplib/transports/snmpUDPIPv6Domain.c
+@@ -285,6 +285,7 @@ netsnmp_udp6_transport(struct sockaddr_in6 *addr, int local)
+                                  errno, strerror(errno)));
+                 netsnmp_socketbase_close(t);
+                 netsnmp_transport_free(t);
++                return NULL;
+             }
+         }
+         /*
+-- 
+2.9.3
+
diff --git a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.7.3.bb b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.7.3.bb
index 140028722d..79e7766e9f 100644
--- a/meta-networking/recipes-protocols/net-snmp/net-snmp_5.7.3.bb
+++ b/meta-networking/recipes-protocols/net-snmp/net-snmp_5.7.3.bb
@@ -25,6 +25,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/net-snmp/net-snmp-${PV}.zip \
            file://net-snmp-agentx-crash.patch \
            file://0001-get_pid_from_inode-Include-limit.h.patch \
            file://0001-BUG-a2584-Fix-snmptrap-to-use-clientaddr-from-snmp.c.patch \
+           file://0001-snmplib-UDPIPv6-transport-Add-a-missing-return-state.patch \
            "
 SRC_URI[md5sum] = "9f682bd70c717efdd9f15b686d07baee"
 SRC_URI[sha256sum] = "e8dfc79b6539b71a6ff335746ce63d2da2239062ad41872fff4354cafed07a3e"