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core: add nm_utils_ip4_address_same_prefix() function

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This commit is contained in:
Thomas Haller 2017-09-11 21:34:35 +02:00
parent 846b02880d
commit 944006d485
1 changed files with 18 additions and 10 deletions
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28
src/nm-core-utils.h
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@ -116,27 +116,35 @@ gboolean nm_ethernet_address_is_valid (gconstpointer addr, gssize len);
gconstpointer nm_utils_ipx_address_clear_host_address (int family, gpointer dst, gconstpointer src, guint8 plen);
in_addr_t nm_utils_ip4_address_clear_host_address (in_addr_t addr, guint8 plen);
const struct in6_addr *nm_utils_ip6_address_clear_host_address (struct in6_addr *dst, const struct in6_addr *src, guint8 plen);
static inline int
nm_utils_ip4_address_same_prefix_cmp (in_addr_t addr_a, in_addr_t addr_b, guint8 plen)
{
NM_CMP_DIRECT (htonl (nm_utils_ip4_address_clear_host_address (addr_a, plen)),
htonl (nm_utils_ip4_address_clear_host_address (addr_b, plen)));
return 0;
}
int nm_utils_ip6_address_same_prefix_cmp (const struct in6_addr *addr_a, const struct in6_addr *addr_b, guint8 plen);
static inline gboolean
nm_utils_ip4_address_same_prefix (in_addr_t addr_a, in_addr_t addr_b, guint8 plen)
{
return nm_utils_ip4_address_same_prefix_cmp (addr_a, addr_b, plen) == 0;
}
static inline gboolean
nm_utils_ip6_address_same_prefix (const struct in6_addr *addr_a, const struct in6_addr *addr_b, guint8 plen)
{
return nm_utils_ip6_address_same_prefix_cmp (addr_a, addr_b, plen) == 0;
}
#define NM_CMP_DIRECT_IN4ADDR_SAME_PREFIX(a, b, plen) \
NM_CMP_RETURN (nm_utils_ip4_address_same_prefix_cmp ((a), (b), (plen)))
#define NM_CMP_DIRECT_IN6ADDR_SAME_PREFIX(a, b, plen) \
NM_CMP_RETURN (nm_utils_ip6_address_same_prefix_cmp ((a), (b), (plen)))
#define NM_CMP_DIRECT_IN4ADDR_SAME_PREFIX(a, b, plen) \
G_STMT_START { \
const guint8 _plen = (plen); \
const in_addr_t _aa = (a); \
const in_addr_t _ab = (b); \
\
NM_CMP_DIRECT (htonl (nm_utils_ip4_address_clear_host_address (_aa, _plen)), \
htonl (nm_utils_ip4_address_clear_host_address (_ab, _plen))); \
} G_STMT_END
static inline guint
NM_HASH_COMBINE_IN6ADDR (guint h, const struct in6_addr *addr)
{