From a853c5670c2ee1c74de4a54d24cdebd6c3bf5761 Mon Sep 17 00:00:00 2001
From: Jordan Bancino <jordan@bancino.net>
Date: Fri, 26 May 2023 23:47:36 +0000
Subject: [PATCH] Fix potential write out of bounds.

---
 src/HeaderParser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/HeaderParser.c b/src/HeaderParser.c
index 55c2d5f..e08af75 100644
--- a/src/HeaderParser.c
+++ b/src/HeaderParser.c
@@ -657,7 +657,7 @@ HeaderParse(Stream * stream, HeaderExpr * expr)
             /* Cope with preprocessor macro expansions at the top
              * level. */
             expr->type = HP_UNKNOWN;
-            strncpy(expr->data.text, word, HEADER_EXPR_MAX);
+            strncpy(expr->data.text, word, HEADER_EXPR_MAX - 1);
         }
 
         Free(word);