From 466c5b509e668e5d211e919ef6d1fc360e4269f4 Mon Sep 17 00:00:00 2001
From: xukunpeng <xukunpeng2@huawei.com>
Date: Tue, 13 Apr 2021 11:06:05 +0800
Subject: [PATCH 3/3] [Huawei]patch to zlib

Offering: GaussDB Kernel

More detail: patch huawei_unzip_alloc_hook.patch and huawei_unzip_alloc_hook.patch2

Signed-off-by: xukunpeng xukunpeng2@huawei.com
---
 contrib/minizip/unzip.c | 10 ++++++++++
 contrib/minizip/unzip.h | 13 +++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/contrib/minizip/unzip.c b/contrib/minizip/unzip.c
index bcfb941..a321034 100644
--- a/contrib/minizip/unzip.c
+++ b/contrib/minizip/unzip.c
@@ -108,6 +108,16 @@
 #define UNZ_MAXFILENAMEINZIP (256)
 #endif
 
+static unz_memfunc g_unz_memapi = {0, 0};
+
+extern int ZEXPORT unz_set_memfuncs(const unz_memfunc* memfunc)
+{
+	g_unz_memapi = *memfunc;
+}
+
+#define ALLOC(size)  ((*(g_unz_memapi.m_malloc))(size))
+#define TRYFREE(p)   { if (p) { (*(g_unz_memapi.m_free))(p); p = NULL; } }
+
 #ifndef ALLOC
 # define ALLOC(size) (malloc(size))
 #endif
diff --git a/contrib/minizip/unzip.h b/contrib/minizip/unzip.h
index 2104e39..06eb49c 100644
--- a/contrib/minizip/unzip.h
+++ b/contrib/minizip/unzip.h
@@ -429,6 +429,19 @@ extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
 extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
 
 
+/* memory manager api */
+typedef voidp (* malloc_pf) (size_t);
+typedef void  (* free_pf) (voidp);
+
+typedef struct unz_memfunc_s
+{
+	malloc_pf  m_malloc;
+	free_pf    m_free;
+} unz_memfunc;
+
+extern int ZEXPORT unz_set_memfuncs OF ((const unz_memfunc* memfunc));
+
+
 
 #ifdef __cplusplus
 }
-- 
2.23.0