From 5748ece401851de31961c066a8c6475fc38facb5 Mon Sep 17 00:00:00 2001
From: 0x1eef <0x1eef@protonmail.com>
Date: Fri, 22 Sep 2023 14:04:52 -0300
Subject: [PATCH] Add support for `::13.1.68.3`

Fix #9
---
 src/isinetaddr6.c       | 8 ++++++--
 test/isinetaddr6_test.c | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/isinetaddr6.c b/src/isinetaddr6.c
index b5ac714..6db4af8 100644
--- a/src/isinetaddr6.c
+++ b/src/isinetaddr6.c
@@ -27,8 +27,12 @@ isinetaddr6(const char *str)
     if (has_consecutive_chars(&str[i], SEP, 3)) {
       return 0;
     } else if (has_consecutive_chars(&str[i], SEP, 2)) {
-      char new_str[MAX_STRLEN];
-      return isinetaddr6(expand(str, len, new_str, i));
+      if (i == 0 && isinetaddr4(&str[3])) {
+        return 1;
+      } else {
+        char new_str[MAX_STRLEN];
+        return isinetaddr6(expand(str, len, new_str, i));
+      }
     } else if (str[i] == SEP) {
       digitlen = 0;
     } else if (isxdigit(str[i])) {
diff --git a/test/isinetaddr6_test.c b/test/isinetaddr6_test.c
index 9b81f89..82065f5 100644
--- a/test/isinetaddr6_test.c
+++ b/test/isinetaddr6_test.c
@@ -36,6 +36,7 @@ const char *valid[] = {
   "FF01::101",
   "::ffff:192.168.2.1",
   "::FFFF:192.168.2.1",
+  "::13.1.68.3",
   "::",
   "::1",
 };