X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=src%2Fra.c;h=c572c130ebe3bbedf62ebac3909de81ceebcf52e;hb=3fb3c327d889a8c5e0370259c4c6360c7d3106cb;hp=4ed5371a160d4b63dc7e1ac80a6d74a38ba2e726;hpb=2cc9d0fa03c68cea04111c05b139e5eaaa999fca;p=odhcp6c.git

diff --git a/src/ra.c b/src/ra.c
index 4ed5371..c572c13 100644
--- a/src/ra.c
+++ b/src/ra.c
@@ -1,3 +1,17 @@
+/**
+ * Copyright (C) 2012-2013 Steven Barth <steven@midlink.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2 as published by
+ * the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
 #include <fcntl.h>
 #include <stdio.h>
 #include <signal.h>
@@ -216,13 +230,15 @@ bool ra_process(void)
 		struct icmpv6_opt *opt;
 		icmpv6_for_each_option(opt, &adv[1], &buf[len]) {
 			if (opt->type == ND_OPT_MTU) {
-				update_proc("conf", "mtu", ntohl(*((uint32_t*)&opt->data[2])));
+				uint32_t *mtu = (uint32_t*)&opt->data[2];
+				update_proc("conf", "mtu", ntohl(*mtu));
 			} else if (opt->type == ND_OPT_ROUTE_INFORMATION && opt->len <= 3) {
 				entry.router = from.sin6_addr;
 				entry.target = any;
 				entry.priority = pref_to_priority(opt->data[1]);
 				entry.length = opt->data[0];
-				entry.valid = ntohl(*((uint32_t*)&opt->data[2]));
+				uint32_t *valid = (uint32_t*)&opt->data[2];
+				entry.valid = ntohl(*valid);
 				memcpy(&entry.target, &opt->data[6], (opt->len - 1) * 8);
 
 				if (entry.length > 128 || IN6_IS_ADDR_LINKLOCAL(&entry.target)
@@ -262,7 +278,8 @@ bool ra_process(void)
 				entry.router = from.sin6_addr;
 				entry.priority = 0;
 				entry.length = 128;
-				entry.valid = ntohl(*((uint32_t*)&opt->data[2]));
+				uint32_t *valid = (uint32_t*)&opt->data[2];
+				entry.valid = ntohl(*valid);
 				entry.preferred = 0;
 
 				for (ssize_t i = 0; i < (opt->len - 1) / 2; ++i) {