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sixlowpan: fix ipv6_addr_init_prefix

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This commit is contained in:
Martine Lenders 2014-10-08 18:52:14 +02:00
parent 3b56b6bf07
commit d63e98786e
1 changed files with 2 additions and 3 deletions
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5
sys/net/network_layer/sixlowpan/ip.c
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@ -651,16 +651,15 @@ void ipv6_addr_init_prefix(ipv6_addr_t *out, const ipv6_addr_t *prefix,
uint8_t bytes = bits / 8, mask;
if (bits % 8) {
mask = 0xff << (bits - (bytes * 8));
mask = 0xff << (8 - (bits - (bytes * 8)));
}
else {
mask = 0x00;
}
bytes++;
memset(out, 0, 16);
memcpy(out, prefix, bytes);
out->uint8[bytes] = prefix->uint8[bytes] & mask;
memset(&(out[bytes + 1]), 0, 15 - bytes);
}
void ipv6_net_if_get_best_src_addr(ipv6_addr_t *src, const ipv6_addr_t *dest)