From 725e3f9f0c401aa34bb0d3d01bb8119797d038f7 Mon Sep 17 00:00:00 2001
From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
Date: Thu, 24 Oct 2019 01:29:29 -0500
Subject: hscript: Ensure netaddress iface name is < IFNAMSIZ

---
 hscript/network.cc | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'hscript')

diff --git a/hscript/network.cc b/hscript/network.cc
index b751e7e..e8f27b9 100644
--- a/hscript/network.cc
+++ b/hscript/network.cc
@@ -62,6 +62,13 @@ Key *NetAddress::parseFromData(const std::string &data, int lineno, int *errors,
 
     type_pos = data.find_first_of(' ');
     iface = data.substr(0, type_pos);
+    if(iface.length() > IFNAMSIZ) {
+        if(errors) *errors += 1;
+        output_error("installfile:" + std::to_string(lineno),
+                     "netaddress: interface name '" + iface + "' is invalid",
+                     "interface names must be 16 characters or less");
+        return nullptr;
+    }
     /* theory: addr_pos could be npos, but that means 'read to end' anyway */
     addr_pos = data.find_first_of(' ', type_pos + 1);
     if(addr_pos == std::string::npos) next_end = std::string::npos;
-- 
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