From 1f7d2d53f0e5b86e22e1dd116868bb69eeacb1a0 Mon Sep 17 00:00:00 2001
From: Ondřej Sur <oerdnj@isc-projects>
Date: Wed, 15 Dec 2021 08:25:42 PM GMT+0800
Subject: [PATCH] Disable the internal memory allocator by default

Conflict:NA
Reference:https://github.com/isc-projects/bind9/commit/1f7d2d53f0e5b86e22e1dd116868bb69eeacb1a0

---
 bin/named/main.c          | 1 +
 lib/isc/include/isc/mem.h | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/bin/named/main.c b/bin/named/main.c
index f62f82c..c7c35ce 100644
--- a/bin/named/main.c
+++ b/bin/named/main.c
@@ -456,6 +456,7 @@ static struct flag_def {
 			{ "mctx", ISC_MEM_DEBUGCTX, false },
 			{ NULL, 0, false } },
   mem_context_flags[] = { { "external", ISC_MEMFLAG_INTERNAL, true },
+			  { "internal", ISC_MEMFLAG_INTERNAL, false },	  	          
 			  { "fill", ISC_MEMFLAG_FILL, false },
 			  { "nofill", ISC_MEMFLAG_FILL, true },
 			  { NULL, 0, false } };
diff --git a/lib/isc/include/isc/mem.h b/lib/isc/include/isc/mem.h
index 58e1d0e..b9f58fa 100644
--- a/lib/isc/include/isc/mem.h
+++ b/lib/isc/include/isc/mem.h
@@ -117,7 +117,7 @@ LIBISC_EXTERNAL_DATA extern unsigned int isc_mem_defaultflags;
  */
 
 #if !defined(ISC_MEM_USE_INTERNAL_MALLOC) && !__SANITIZE_ADDRESS__
-#define ISC_MEM_USE_INTERNAL_MALLOC 1
+#define ISC_MEM_USE_INTERNAL_MALLOC 0
 #endif /* ifndef ISC_MEM_USE_INTERNAL_MALLOC */
 
 /*
-- 
2.33.0