From 91df781351d3a0f523528f14b4c5e4af10cb125d Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Fri, 16 Sep 2022 21:22:21 +0000
Subject: [PATCH] Fix off-by-one error: need 1 more byte for null terminator

---
 charpool.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/charpool.cc b/charpool.cc
index 6f3218b43..39427058f 100644
--- a/charpool.cc
+++ b/charpool.cc
@@ -113,7 +113,7 @@ const char *CharPool::dup(const char *src, int len) {
   if ((modulus = sz % ALIGN_ON))
     sz += ALIGN_ON - modulus;
 
-  while (nexti + sz > currentbucketsz) {
+  while (nexti + sz > currentbucketsz - 1) {
     /* Doh!  We've got to make room */
     currentbucketsz <<= 1;
     nexti = 0;
@@ -121,7 +121,7 @@ const char *CharPool::dup(const char *src, int len) {
     buckets.push_back(p);
   }
 
-  nexti += sz;
+  nexti += sz + 1;
   p[sz] = '\0';
   return (const char *) memcpy(p, src, sz);
 }