[pim] Command line tool to test IGMPv3 join.
diff --git a/pimd/pim_igmp_join.c b/pimd/pim_igmp_join.c
new file mode 100644
index 0000000..7183997
--- /dev/null
+++ b/pimd/pim_igmp_join.c
@@ -0,0 +1,61 @@
+/*
+ PIM for Quagga
+ Copyright (C) 2008 Everton da Silva Marques
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING; if not, write to the
+ Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ MA 02110-1301 USA
+
+ $QuaggaId: $Format:%an, %ai, %h$ $
+*/
+
+#include <string.h>
+
+#include "pim_igmp_join.h"
+
+#ifndef MCAST_JOIN_SOURCE_GROUP
+#define MCAST_JOIN_SOURCE_GROUP 46
+struct group_source_req
+{
+ uint32_t gsr_interface;
+ struct sockaddr_storage gsr_group;
+ struct sockaddr_storage gsr_source;
+};
+#endif
+
+int pim_igmp_join_source(int fd, int ifindex,
+ struct in_addr group_addr,
+ struct in_addr source_addr)
+{
+ struct group_source_req req;
+ struct sockaddr_in *group_sa = (struct sockaddr_in *) &req.gsr_group;
+ struct sockaddr_in *source_sa = (struct sockaddr_in *) &req.gsr_source;
+
+ memset(group_sa, 0, sizeof(*group_sa));
+ group_sa->sin_family = AF_INET;
+ group_sa->sin_addr = group_addr;
+ group_sa->sin_port = htons(0);
+
+ memset(source_sa, 0, sizeof(*source_sa));
+ source_sa->sin_family = AF_INET;
+ source_sa->sin_addr = source_addr;
+ source_sa->sin_port = htons(0);
+
+ req.gsr_interface = ifindex;
+
+ return setsockopt(fd, SOL_IP, MCAST_JOIN_SOURCE_GROUP,
+ &req, sizeof(req));
+
+ return 0;
+}