From a8230b7464e7fe71a551a0c987f5b994eab36e93 Mon Sep 17 00:00:00 2001
From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
Date: Tue, 29 Oct 2019 12:08:23 -0500
Subject: hscript: Use string instead of regex for hostname validation

---
 hscript/meta.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'hscript')

diff --git a/hscript/meta.cc b/hscript/meta.cc
index d935ca4..3b3ee3d 100644
--- a/hscript/meta.cc
+++ b/hscript/meta.cc
@@ -26,8 +26,8 @@ using namespace Horizon::Keys;
 
 Key *Hostname::parseFromData(const std::string &data, int lineno, int *errors,
                              int *) {
-    std::regex valid_re("[A-Za-z0-9-_.]*");
-    if(!std::regex_match(data, valid_re)) {
+    std::string valid_chars("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.");
+    if(data.find_first_not_of(valid_chars) != std::string::npos) {
         if(errors) *errors += 1;
         output_error("installfile:" + std::to_string(lineno),
                      "hostname: expected machine or DNS name",
-- 
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