From f267e40f9679fec02a3166577c78cb290017b7e3 Mon Sep 17 00:00:00 2001
From: Chris Packham <judge.packham@gmail.com>
Date: Wed, 4 Jan 2017 13:36:26 +1300
Subject: [PATCH] lib: net_utils: enforce '.' as octet separator in
string_to_ip
Ensure '.' is used to separate octets. If another character is seen
reject the string outright and return 0.0.0.0.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
---
lib/net_utils.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/lib/net_utils.c b/lib/net_utils.c
index 8f81e78010..d06be22849 100644
--- a/lib/net_utils.c
+++ b/lib/net_utils.c
@@ -28,6 +28,10 @@ struct in_addr string_to_ip(const char *s)
addr.s_addr = 0;
return addr;
}
+ if (i != 3 && *e != '.') {
+ addr.s_addr = 0;
+ return addr;
+ }
addr.s_addr <<= 8;
addr.s_addr |= (val & 0xFF);
if (s) {
--
2.39.5