From 4c9bb70854745b34a3d63ce3c27afd769b1350c1 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Thu, 2 Dec 2021 08:31:55 +0900
Subject: [PATCH] parse-util: refuse leading white space in port number

When parse_ip_port() is directly used in a conf parser, then that's
fine, as the rvalue is already truncated.

When parse_ip_port() is used when e.g. parsing IP address with port,
then we should really refuse white space after colon.
---
 src/basic/parse-util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
index d03a6eeb05..2888ab6523 100644
--- a/src/basic/parse-util.c
+++ b/src/basic/parse-util.c
@@ -644,7 +644,7 @@ int parse_ip_port(const char *s, uint16_t *ret) {
         uint16_t l;
         int r;
 
-        r = safe_atou16(s, &l);
+        r = safe_atou16_full(s, SAFE_ATO_REFUSE_LEADING_WHITESPACE, &l);
         if (r < 0)
                 return r;