Prefix of /0 is special

diff --git a/src/main/client.c b/src/main/client.c
index 3c96bd1..3efcc36 100644 (file)
--- a/src/main/client.c
+++ b/src/main/client.c
@@ -147,7 +147,11 @@ static int client_sane(RADCLIENT *client)
                /*
                 *      Zero out the subnet bits.
                 */
-               if (client->prefix < 32) {
+               if (client->prefix == 0) {
+                       memset(&client->ipaddr.ipaddr.ip4addr, 0,
+                              sizeof(client->ipaddr.ipaddr.ip4addr));
+
+               } else if (client->prefix < 32) {
                        uint32_t mask = ~0;
 
                        mask <<= (32 - client->prefix);
@@ -158,7 +162,11 @@ static int client_sane(RADCLIENT *client)
        case AF_INET6:
                if (client->prefix > 128) return 0;
 
-               if (client->prefix < 128) {
+               if (client->prefix == 0) {
+                       memset(&client->ipaddr.ipaddr.ip6addr, 0,
+                              sizeof(client->ipaddr.ipaddr.ip6addr));
+
+               } else if (client->prefix < 128) {
                        int i;
                        uint32_t mask, *addr;