From fcce58cc61e4ed66de7d81064f40ff5a4e5b6346 Mon Sep 17 00:00:00 2001
From: Jelmer Vernooij <jelmer@samba.org>
Date: Sat, 18 Oct 2008 14:12:56 +0200
Subject: Add extra argument free_on_fail to realloc_array() in Samba 4, as
 used by Samba 3.

---
 lib/util/memory.h | 8 --------
 lib/util/util.c   | 6 ++++--
 lib/util/util.h   | 2 +-
 3 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/lib/util/memory.h b/lib/util/memory.h
index 29dd75060f..de01492aa2 100644
--- a/lib/util/memory.h
+++ b/lib/util/memory.h
@@ -40,20 +40,12 @@
 /**
  * Allocate an array of elements of one data type. Does type-checking.
  */
-#if _SAMBA_BUILD_ == 3
 #define malloc_array_p(type, count) (type *)realloc_array(NULL, sizeof(type), count, false)
-#else
-#define malloc_array_p(type, count) (type *)realloc_array(NULL, sizeof(type), count)
-#endif
 
 /** 
  * Resize an array of elements of one data type. Does type-checking.
  */
-#if _SAMBA_BUILD_ == 3
 #define realloc_p(p, type, count) (type *)realloc_array(p, sizeof(type), count, false)
-#else
-#define realloc_p(p, type, count) (type *)realloc_array(p, sizeof(type), count)
-#endif
 
 /** 
  * zero a structure 
diff --git a/lib/util/util.c b/lib/util/util.c
index 5fc785d642..4c5ae973a1 100644
--- a/lib/util/util.c
+++ b/lib/util/util.c
@@ -569,11 +569,13 @@ _PUBLIC_ bool all_zero(const uint8_t *ptr, size_t size)
 /**
   realloc an array, checking for integer overflow in the array size
 */
-_PUBLIC_ void *realloc_array(void *ptr, size_t el_size, unsigned count)
+_PUBLIC_ void *realloc_array(void *ptr, size_t el_size, unsigned count, bool free_on_fail)
 {
 #define MAX_MALLOC_SIZE 0x7fffffff
 	if (count == 0 ||
 	    count >= MAX_MALLOC_SIZE/el_size) {
+		if (free_on_fail)
+			SAFE_FREE(ptr);
 		return NULL;
 	}
 	if (!ptr) {
@@ -588,7 +590,7 @@ _PUBLIC_ void *realloc_array(void *ptr, size_t el_size, unsigned count)
 
 void *malloc_array(size_t el_size, unsigned int count)
 {
-	return realloc_array(NULL, el_size, count);
+	return realloc_array(NULL, el_size, count, false);
 }
 
 _PUBLIC_ void *talloc_check_name_abort(const void *ptr, const char *name)
diff --git a/lib/util/util.h b/lib/util/util.h
index 02309d118d..e4a5a0c662 100644
--- a/lib/util/util.h
+++ b/lib/util/util.h
@@ -634,7 +634,7 @@ _PUBLIC_ bool all_zero(const uint8_t *ptr, size_t size);
 /**
   realloc an array, checking for integer overflow in the array size
 */
-_PUBLIC_ void *realloc_array(void *ptr, size_t el_size, unsigned count);
+_PUBLIC_ void *realloc_array(void *ptr, size_t el_size, unsigned count, bool free_on_fail);
 
 /* The following definitions come from lib/util/fsusage.c  */
 
-- 
cgit