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From a92628a163ebf1ea62220684736300461c003875 Mon Sep 17 00:00:00 2001
From: Niels Baggesen <nba@users.sourceforge.net>
Date: Mon, 26 Jan 2015 20:26:06 +0100
Subject: [PATCH] BUG#a2584: Fix snmptrap to use clientaddr from snmp.conf.
Thanks to rizwan
Upstream-Status: backport
Signed-off-by: Li Zhou <li.zhou@windriver.com>
---
snmplib/transports/snmpUDPIPv6Domain.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
Index: net-snmp-5.7.3/snmplib/transports/snmpUDPIPv6Domain.c
===================================================================
--- net-snmp-5.7.3.orig/snmplib/transports/snmpUDPIPv6Domain.c
+++ net-snmp-5.7.3/snmplib/transports/snmpUDPIPv6Domain.c
@@ -286,6 +286,27 @@ netsnmp_udp6_transport(struct sockaddr_i
return NULL;
#endif /* NETSNMP_NO_LISTEN_SUPPORT */
} else {
+ char *client_socket = NULL;
+ /*
+ * This is a client session. If we've been given a
+ * client address to send from, then bind to that.
+ * Otherwise the send will use "something sensible".
+ */
+
+ client_socket = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
+ NETSNMP_DS_LIB_CLIENT_ADDR);
+ if (client_socket) {
+ struct sockaddr_in6 client_addr;
+ netsnmp_sockaddr_in6_2(&client_addr, client_socket, NULL);
+ rc = bind(t->sock, (struct sockaddr *)&client_addr,
+ sizeof(struct sockaddr_in6));
+ if ( rc != 0 ) {
+ DEBUGMSGTL(("netsnmp_udp6", "failed to bind for clientaddr: %d %s\n",
+ errno, strerror(errno)));
+ netsnmp_socketbase_close(t);
+ netsnmp_transport_free(t);
+ }
+ }
/*
* This is a client session. Save the address in the
* transport-specific data pointer for later use by netsnmp_udp6_send.
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