}
}
-int in_addr_prefix_covers(int family,
- const union in_addr_union *prefix,
- unsigned char prefixlen,
- const union in_addr_union *address) {
+int in4_addr_prefix_covers(
+ const struct in_addr *prefix,
+ unsigned char prefixlen,
+ const struct in_addr *address) {
- union in_addr_union masked_prefix, masked_address;
+ struct in_addr masked_prefix, masked_address;
int r;
assert(prefix);
assert(address);
masked_prefix = *prefix;
- r = in_addr_mask(family, &masked_prefix, prefixlen);
+ r = in4_addr_mask(&masked_prefix, prefixlen);
if (r < 0)
return r;
masked_address = *address;
- r = in_addr_mask(family, &masked_address, prefixlen);
+ r = in4_addr_mask(&masked_address, prefixlen);
if (r < 0)
return r;
- return in_addr_equal(family, &masked_prefix, &masked_address);
+ return in4_addr_equal(&masked_prefix, &masked_address);
+}
+
+int in6_addr_prefix_covers(
+ const struct in6_addr *prefix,
+ unsigned char prefixlen,
+ const struct in6_addr *address) {
+
+ struct in6_addr masked_prefix, masked_address;
+ int r;
+
+ assert(prefix);
+ assert(address);
+
+ masked_prefix = *prefix;
+ r = in6_addr_mask(&masked_prefix, prefixlen);
+ if (r < 0)
+ return r;
+
+ masked_address = *address;
+ r = in6_addr_mask(&masked_address, prefixlen);
+ if (r < 0)
+ return r;
+
+ return in6_addr_equal(&masked_prefix, &masked_address);
+}
+
+int in_addr_prefix_covers(
+ int family,
+ const union in_addr_union *prefix,
+ unsigned char prefixlen,
+ const union in_addr_union *address) {
+
+ assert(prefix);
+ assert(address);
+
+ switch (family) {
+ case AF_INET:
+ return in4_addr_prefix_covers(&prefix->in, prefixlen, &address->in);
+ case AF_INET6:
+ return in6_addr_prefix_covers(&prefix->in6, prefixlen, &address->in6);
+ default:
+ return -EAFNOSUPPORT;
+ }
}
int in_addr_parse_prefixlen(int family, const char *p, unsigned char *ret) {
int in4_addr_mask(struct in_addr *addr, unsigned char prefixlen);
int in6_addr_mask(struct in6_addr *addr, unsigned char prefixlen);
int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen);
+int in4_addr_prefix_covers(const struct in_addr *prefix, unsigned char prefixlen, const struct in_addr *address);
+int in6_addr_prefix_covers(const struct in6_addr *prefix, unsigned char prefixlen, const struct in6_addr *address);
int in_addr_prefix_covers(int family, const union in_addr_union *prefix, unsigned char prefixlen, const union in_addr_union *address);
int in_addr_parse_prefixlen(int family, const char *p, unsigned char *ret);
int in_addr_prefix_from_string(const char *p, int family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen);