Commit 6781efb9 authored by Richard Levitte's avatar Richard Levitte
Browse files

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.
parent 0bf1c1d8

crypto/mem.c

+4 −4
Original line number Diff line number Diff line
@@ -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);