diff options
Diffstat (limited to 'src/nm-core-utils.c')
| -rw-r--r-- | src/nm-core-utils.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/nm-core-utils.c b/src/nm-core-utils.c index 6cdd00e0..714aaa92 100644 --- a/src/nm-core-utils.c +++ b/src/nm-core-utils.c @@ -233,7 +233,6 @@ nm_ethernet_address_is_valid (gconstpointer addr, gssize len) return TRUE; } - /* nm_utils_ip4_address_clear_host_address: * @addr: source ip6 address * @plen: prefix length of network @@ -279,6 +278,32 @@ nm_utils_ip6_address_clear_host_address (struct in6_addr *dst, const struct in6_ return dst; } +gboolean +nm_utils_ip6_address_same_prefix (const struct in6_addr *addr_a, const struct in6_addr *addr_b, guint8 plen) +{ + int nbytes; + guint8 t, m; + + if (plen >= 128) + return memcmp (addr_a, addr_b, sizeof (struct in6_addr)) == 0; + + nbytes = plen / 8; + if (nbytes) { + if (memcmp (addr_a, addr_b, nbytes) != 0) + return FALSE; + } + + plen = plen % 8; + if (plen == 0) + return TRUE; + + m = ~((1 << (8 - plen)) - 1); + t = ((((const guint8 *) addr_a))[nbytes]) ^ ((((const guint8 *) addr_b))[nbytes]); + return (t & m) == 0; +} + +/*****************************************************************************/ + void nm_utils_array_remove_at_indexes (GArray *array, const guint *indexes_to_delete, gsize len) { |