From: Richard Levitte <levitte@openssl.org>
Date: Mon, 1 Dec 2003 12:06:19 +0000 (+0000)
Subject: CRYPTO_malloc(), CRYPTO_realloc() and variants of them should return NULL
X-Git-Tag: OpenSSL_0_9_7d~68
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=31670c94bc249f974a03f7c4f02102548062dc8f;p=oweals%2Fopenssl.git

CRYPTO_malloc(), CRYPTO_realloc() and variants of them should return NULL
if the give size is 0.

This is a thought that came up in PR 751.
---

diff --git a/crypto/mem.c b/crypto/mem.c
index bb862db499..dd86733b77 100644
--- a/crypto/mem.c
+++ b/crypto/mem.c
@@ -252,7 +252,7 @@ void *CRYPTO_malloc_locked(int num, const char *file, int line)
 	void *ret = NULL;
 	extern unsigned char cleanse_ctr;
 
-	if (num < 0) return NULL;
+	if (num <= 0) return NULL;
 
 	allow_customize = 0;
 	if (malloc_debug_func != NULL)
@@ -293,7 +293,7 @@ void *CRYPTO_malloc(int num, const char *file, int line)
 	void *ret = NULL;
 	extern unsigned char cleanse_ctr;
 
-	if (num < 0) return NULL;
+	if (num <= 0) return NULL;
 
 	allow_customize = 0;
 	if (malloc_debug_func != NULL)
@@ -324,7 +324,7 @@ void *CRYPTO_realloc(void *str, int num, const char *file, int line)
 	if (str == NULL)
 		return CRYPTO_malloc(num, file, line);
 
- 	if (num < 0) return NULL;
+ 	if (num <= 0) return NULL;
  
 	if (realloc_debug_func != NULL)
 		realloc_debug_func(str, NULL, num, file, line, 0);
@@ -346,7 +346,7 @@ void *CRYPTO_realloc_clean(void *str, int old_len, int num, const char *file,
 	if (str == NULL)
 		return CRYPTO_malloc(num, file, line);
  
- 	if (num < 0) return NULL;
+ 	if (num <= 0) return NULL;
  
 	if (realloc_debug_func != NULL)
 		realloc_debug_func(str, NULL, num, file, line, 0);