Fix a few more typos

[elogind.git] / src / shared / in-addr-util.c

diff --git a/src/shared/in-addr-util.c b/src/shared/in-addr-util.c
index ff008bd26fb9ab591810b05db5637f54d070841f..457eedd6d81825f519984f06884cc0c91ab4c6c0 100644 (file)
--- a/src/shared/in-addr-util.c
+++ b/src/shared/in-addr-util.c
@@ -23,7 +23,7 @@
 
 #include "in-addr-util.h"
 
-int in_addr_null(int 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)
@@ -39,8 +39,19 @@ int in_addr_null(int family, union in_addr_union *u) {
         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);
 
-int in_addr_equal(int family, union in_addr_union *a, union in_addr_union *b) {
+        if (family == AF_INET6)
+                return IN6_IS_ADDR_LINKLOCAL(&u->in6);
+
+        return -EAFNOSUPPORT;
+}
+
+int in_addr_equal(int family, const union in_addr_union *a, const union in_addr_union *b) {
         assert(a);
         assert(b);
 
@@ -231,3 +242,9 @@ int in_addr_from_string_auto(const char *s, int *family, union in_addr_union *re
 
         return -EINVAL;
 }
+
+unsigned in_addr_netmask_to_prefixlen(const struct in_addr *addr) {
+        assert(addr);
+
+        return 32 - u32ctz(be32toh(addr->s_addr));
+}