From 28ddf48899fad28bd21f7f187c0eb305ae105b8a Mon Sep 17 00:00:00 2001
From: Victor Julien <victor@inliniac.net>
Date: Mon, 11 Dec 2017 18:18:28 +0100
Subject: [PATCH] mingw: improve ipaddress parsing

---
 src/win32-misc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/win32-misc.c b/src/win32-misc.c
index 80eb29cd62..ed52eb5b7a 100644
--- a/src/win32-misc.c
+++ b/src/win32-misc.c
@@ -28,6 +28,7 @@
 #include "suricata-common.h"
 #include "win32-misc.h"
 #include "direct.h"
+#include "util-ip.h"
 
 void setenv(const char *name, const char *value, int overwrite)
 {
@@ -80,6 +81,17 @@ int inet_pton(int af, const char *src, void *dst)
     memset(&hints, 0, sizeof(struct addrinfo));
     hints.ai_family = af;
 
+    /* as getaddrinfo below seems more liberal that inet_pton on Linux,
+     * add this check here that does a guess at the validity of the
+     * input address. */
+    if (af == AF_INET) {
+        if (!IPv4AddressStringIsValid(src))
+            return -1;
+    } else if (af == AF_INET6) {
+        if (!IPv6AddressStringIsValid(src))
+            return -1;
+    }
+
     struct addrinfo* result = NULL;
     if (0 != getaddrinfo(src, NULL, &hints, &result))
         return -1;
-- 
2.47.2