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-rw-r--r--src/network/getifaddrs.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/src/network/getifaddrs.c b/src/network/getifaddrs.c
index 9ccf4579..a4c31782 100644
--- a/src/network/getifaddrs.c
+++ b/src/network/getifaddrs.c
@@ -51,8 +51,17 @@ void freeifaddrs(struct ifaddrs *ifp)
static void ipv6netmask(unsigned prefix_length, struct sockaddr_in6 *sa)
{
- // FIXME: left for bit-wizard rich
- memset(&sa->sin6_addr, -1, sizeof(sa->sin6_addr));
+ unsigned char* hb = sa->sin6_addr.s6_addr;
+ unsigned onebytes = prefix_length / 8;
+ unsigned bits = prefix_length % 8;
+ unsigned nullbytes = 16 - onebytes;
+ memset(hb, -1, onebytes);
+ memset(hb+onebytes, 0, nullbytes);
+ if(bits) {
+ unsigned char x = -1;
+ x <<= 8 - bits;
+ hb[onebytes] = x;
+ }
}
static void dealwithipv6(stor **list, stor** head)