netlink: move local-addresses.[ch] to src/shared

This code is not part of the public API of sd-netlink, nor used by it
internally and hence should not be in the sd-netlink directory.

Also, move the test case for it to src/test/.

src/test/meson.build

@@ -754,6 +754,10 @@ tests += [
         [['src/test/test-sd-hwdb.c'],
          [],
          []],
+
+        [['src/test/test-local-addresses.c'],
+         [],
+         []],
 ]
 
 ############################################################
@@ -964,10 +968,6 @@ tests += [
          [],
          []],
 
-        [['src/libsystemd/sd-netlink/test-local-addresses.c'],
-         [],
-         []],
-
         [['src/libsystemd/sd-resolve/test-resolve.c'],
          [],
          [threads],

src/test/test-local-addresses.c

@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <stdio.h>
+
+#include "af-list.h"
+#include "alloc-util.h"
+#include "in-addr-util.h"
+#include "local-addresses.h"
+#include "tests.h"
+
+static void print_local_addresses(struct local_address *a, unsigned n) {
+        unsigned i;
+
+        for (i = 0; i < n; i++) {
+                _cleanup_free_ char *b = NULL;
+
+                assert_se(in_addr_to_string(a[i].family, &a[i].address, &b) >= 0);
+                printf("%s if%i scope=%i metric=%u address=%s\n", af_to_name(a[i].family), a[i].ifindex, a[i].scope, a[i].metric, b);
+        }
+}
+
+int main(int argc, char *argv[]) {
+        struct local_address *a;
+        int n;
+
+        test_setup_logging(LOG_DEBUG);
+
+        a = NULL;
+        n = local_addresses(NULL, 0, AF_UNSPEC, &a);
+        assert_se(n >= 0);
+
+        printf("Local Addresses:\n");
+        print_local_addresses(a, (unsigned) n);
+        a = mfree(a);
+
+        n = local_gateways(NULL, 0, AF_UNSPEC, &a);
+        assert_se(n >= 0);
+
+        printf("Local Gateways:\n");
+        print_local_addresses(a, (unsigned) n);
+        free(a);
+
+        return 0;
+}