resolved: add LLMNR support for looking up names

[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 98d2446e5deeb9faa69ed5fae1da677ddee787a6..0c6ebec336446d2fc3ee67210a7ff4e8e88472a5 100644 (file)
--- a/src/shared/in-addr-util.c
+++ b/src/shared/in-addr-util.c
@@ -209,3 +209,37 @@ 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 r;
+
+        assert(s);
+        assert(family);
+        assert(ret);
+
+        r = in_addr_from_string(AF_INET, s, ret);
+        if (r >= 0) {
+                *family = AF_INET;
+                return 0;
+        }
+
+        r = in_addr_from_string(AF_INET6, s, ret);
+        if (r >= 0) {
+                *family = AF_INET6;
+                return 0;
+        }
+
+        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);