1 files changed, 31 insertions, 0 deletions
diff --git a/src/tc-socket.c b/src/tc-socket.c
new file mode 100644
index 0000000..9c73d24
--- /dev/null
+++ b/src/tc-socket.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: MIT
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libHX/defs.h>
+#include <libHX/socket.h>
+#ifndef _WIN32
+#	include <netdb.h>
+#endif
+#ifndef AI_V4MAPPED
+#	define AI_V4MAPPED 0
+#endif
+
+int main(void)
+{
+	static const char *addrs[] = {
+		"::1", "::2", "::ffff:127.0.0.1", "::",
+		"127.0.0.1", "127.0.0.2", "1.1.1.1", "255.255.255.255",
+	};
+	for (size_t i = 0; i < ARRAY_SIZE(addrs); ++i) {
+		printf("%-16s\t", addrs[i]);
+		int lcl = HX_ipaddr_is_local(addrs[i], AI_V4MAPPED);
+		if (lcl < 0) {
+			printf("%s\n", strerror(-lcl));
+			return EXIT_FAILURE;
+		}
+		printf("%d\n", lcl);
+	}
+	return EXIT_SUCCESS;
+}