X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnetutl.c;h=d84262728ccbf24ec9fec7b72ffa570de1962984;hp=535e370b9ab8fed061ac172fb2eab1d58b2489b1;hb=8ebb017a10cd85406ddf5ab60d8ef1f56df526ff;hpb=df3220a1549f992cbf4a9b6e67c1e67b69896c7d

diff --git a/src/netutl.c b/src/netutl.c
index 535e370b..d8426272 100644
--- a/src/netutl.c
+++ b/src/netutl.c
@@ -257,7 +257,7 @@ void mask(void *va, int masklen, int len)
 	masklen %= 8;
 
 	if(masklen)
-		a[i++] &= (0x100 - (1 << masklen));
+		a[i++] &= (0x100 - (1 << (8 - masklen)));
 
 	for(; i < len; i++)
 		a[i] = 0;
@@ -275,7 +275,7 @@ void maskcpy(void *va, const void *vb, int masklen, int len)
 		a[i] = b[i];
 
 	if(m) {
-		a[i] = b[i] & (0x100 - (1 << m));
+		a[i] = b[i] & (0x100 - (1 << (8 - m)));
 		i++;
 	}