terminal/screen: add color converter

[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 0c6ebec336446d2fc3ee67210a7ff4e8e88472a5..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(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);
 
-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);
 
@@ -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);
@@ -232,14 +243,8 @@ int in_addr_from_string_auto(const char *s, unsigned *family, union in_addr_unio
         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));
+}