X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=src%2Fban.c;h=c8b868809f0090a78465785ad6cdf2e097f523bc;hb=38763ab7cb701f7721b4b558952e85d09a935796;hp=4ff47c84232bc870b7d143f588c344d388ff1c95;hpb=230ab44eae2e9379a093078b028923b7477f4425;p=umurmur.git

diff --git a/src/ban.c b/src/ban.c
index 4ff47c8..c8b8688 100644
--- a/src/ban.c
+++ b/src/ban.c
@@ -144,7 +144,8 @@ bool_t Ban_isBannedAddr(struct sockaddr_storage *address)
 		ban = list_get_entry(itr, ban_t, node);
 		if (ban->address.ss_family == address->ss_family) {
 			if (address->ss_family == AF_INET) {
-				uint32_t a1, a2, mask = 2 ^ ban->mask;
+				uint32_t a1, a2, mask;
+				mask = (ban->mask == 32) ? UINT32_MAX : (1u << ban->mask) - 1;
 				a1 = (uint32_t)((struct sockaddr_in *)&ban->address)->sin_addr.s_addr & mask;
 				a2 = (uint32_t)((struct sockaddr_in *)address)->sin_addr.s_addr & mask;
 				if (a1 == a2)