From 9ca8ba43fa045cc60e3999909357cca3b090332d Mon Sep 17 00:00:00 2001
From: Frank Dana <ferdnyc@gmail.com>
Date: Sun, 24 Apr 2022 21:57:48 -0400
Subject: [PATCH] hz/intrusive_ptr.h: strncpy() string terminators

When building the error message, ensure each strncpy()
includes the null byte terminating the copied string, even
though the first two will be immediately overwritten by
the next part. Silences compiler warnings.
---
 src/hz/intrusive_ptr.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/hz/intrusive_ptr.h b/src/hz/intrusive_ptr.h
index f95a91c..a456ef8 100644
--- a/src/hz/intrusive_ptr.h
+++ b/src/hz/intrusive_ptr.h
@@ -100,8 +100,8 @@ struct intrusive_ptr_error : virtual public std::exception {  // from <exception
 		std::size_t tmsg_len = std::strlen(tmsg);
 		std::size_t tname_len = std::strlen(tname);
 		msg_ = new char[msg_len + tmsg_len + tname_len + 1];
-		std::strncpy(msg_, msg, msg_len);
-		std::strncpy(msg_ + msg_len, tmsg, tmsg_len);
+		std::strncpy(msg_, msg, msg_len + 1);
+		std::strncpy(msg_ + msg_len, tmsg, tmsg_len + 1);
 		std::strncpy(msg_ + msg_len + tmsg_len, tname, tname_len + 1);
 	}
 #endif