#include "in-addr-util.h"
-int in_addr_null(unsigned family, union in_addr_union *u) {
+int in_addr_is_null(int family, const union in_addr_union *u) {
assert(u);
if (family == AF_INET)
return -EAFNOSUPPORT;
}
+int in_addr_is_link_local(int family, const union in_addr_union *u) {
+ assert(u);
+
+ if (family == AF_INET)
+ return (be32toh(u->in.s_addr) & 0xFFFF0000) == (169U << 24 | 254U << 16);
+
+ if (family == AF_INET6)
+ return IN6_IS_ADDR_LINKLOCAL(&u->in6);
-int in_addr_equal(unsigned family, union in_addr_union *a, union in_addr_union *b) {
+ return -EAFNOSUPPORT;
+}
+
+int in_addr_equal(int family, const union in_addr_union *a, const union in_addr_union *b) {
assert(a);
assert(b);
}
int in_addr_prefix_intersect(
- unsigned family,
+ int family,
const union in_addr_union *a,
unsigned aprefixlen,
const union in_addr_union *b,
return -EAFNOSUPPORT;
}
-int in_addr_prefix_next(unsigned family, union in_addr_union *u, unsigned prefixlen) {
+int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen) {
assert(u);
/* Increases the network part of an address by one. Returns
return -EAFNOSUPPORT;
}
-int in_addr_to_string(unsigned family, const union in_addr_union *u, char **ret) {
+int in_addr_to_string(int family, const union in_addr_union *u, char **ret) {
char *x;
size_t l;
return 0;
}
-int in_addr_from_string(unsigned family, const char *s, union in_addr_union *ret) {
+int in_addr_from_string(int family, const char *s, union in_addr_union *ret) {
assert(s);
assert(ret);
return 0;
}
-int in_addr_from_string_auto(const char *s, unsigned *family, union in_addr_union *ret) {
+int in_addr_from_string_auto(const char *s, int *family, union in_addr_union *ret) {
int r;
assert(s);
return -EINVAL;
}
-static const char* const family_table[] = {
- [AF_UNSPEC] = "unspec",
- [AF_UNIX] = "unix",
- [AF_INET] = "inet",
- [AF_INET6] = "inet6",
- [AF_NETLINK] = "netlink",
- [AF_PACKET] = "packet",
- [AF_BLUETOOTH] = "bluetooth",
- [AF_NFC] = "nfc",
-};
-DEFINE_STRING_TABLE_LOOKUP(family, int);
+unsigned in_addr_netmask_to_prefixlen(const struct in_addr *addr) {
+ assert(addr);
+
+ return 32 - u32ctz(be32toh(addr->s_addr));
+}