X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Fin-addr-util.c;h=459f8461738f935fc0c09af5ce6e70e00af3c5d6;hb=1f2b7175cf84bdbef6ee6917224658ba2adf43bf;hp=6ece85e37da911dc3d88932c64341e1087058e7c;hpb=74b2466e14a1961bf3ac0e8a60cfaceec705bd59;p=elogind.git

diff --git a/src/shared/in-addr-util.c b/src/shared/in-addr-util.c
index 6ece85e37..459f84617 100644
--- 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(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)
@@ -39,8 +39,19 @@ int in_addr_null(unsigned 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);
+
+        if (family == AF_INET6)
+                return IN6_IS_ADDR_LINKLOCAL(&u->in6);
+
+        return -EAFNOSUPPORT;
+}
 
-int in_addr_equal(unsigned family, union in_addr_union *a, union in_addr_union *b) {
+int in_addr_equal(int family, const union in_addr_union *a, const union in_addr_union *b) {
         assert(a);
         assert(b);
 
@@ -58,7 +69,7 @@ int in_addr_equal(unsigned family, union in_addr_union *a, union in_addr_union *
 }
 
 int in_addr_prefix_intersect(
-                unsigned family,
+                int family,
                 const union in_addr_union *a,
                 unsigned aprefixlen,
                 const union in_addr_union *b,
@@ -114,7 +125,7 @@ int in_addr_prefix_intersect(
         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
@@ -167,7 +178,7 @@ int in_addr_prefix_next(unsigned family, union in_addr_union *u, unsigned prefix
         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;
 
@@ -195,7 +206,7 @@ int in_addr_to_string(unsigned family, const union in_addr_union *u, char **ret)
         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);
@@ -210,7 +221,7 @@ int in_addr_from_string(unsigned family, const char *s, union in_addr_union *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);