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-rw-r--r--utils.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/utils.c b/utils.c
index ba26952..e01b633 100644
--- a/utils.c
+++ b/utils.c
@@ -119,6 +119,7 @@ int
parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask)
{
char *astr = alloca(strlen(str) + 1);
+ int ret = 0;
strcpy(astr, str);
if (!split_netmask(astr, netmask, af == AF_INET6))
@@ -132,7 +133,23 @@ parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask)
return 0;
}
- return inet_pton(af, astr, addr);
+ ret = inet_pton(af, astr, addr);
+ if (ret > 0) {
+ if (af == AF_INET) {
+ struct in_addr *ip4_addr = (struct in_addr *)addr;
+ uint32_t host_addr = ntohl(ip4_addr->s_addr);
+
+ if (IN_EXPERIMENTAL(host_addr)) {
+ return 0;
+ }
+ }
+ else if (af == AF_INET6) {
+ if (IN6_IS_ADDR_MULTICAST((struct in6_addr *)addr)) {
+ return 0;
+ }
+ }
+ }
+ return ret;
}
char *