Reformat/tidy some of the ASN1 code.

[openssl.git] / crypto / mem.c

diff --git a/crypto/mem.c b/crypto/mem.c
index d7d3cda5dcd25b605e89180c5e09acd2ad37597a..6635167228da1c9eb4ee6be3b4a147a1c3bc2af4 100644 (file)
--- a/crypto/mem.c
+++ b/crypto/mem.c
@@ -252,6 +252,8 @@ void *CRYPTO_malloc_locked(int num, const char *file, int line)
        void *ret = NULL;
        extern unsigned char cleanse_ctr;
 
+       if (num <= 0) return NULL;
+
        allow_customize = 0;
        if (malloc_debug_func != NULL)
                {
@@ -291,6 +293,8 @@ void *CRYPTO_malloc(int num, const char *file, int line)
        void *ret = NULL;
        extern unsigned char cleanse_ctr;
 
+       if (num <= 0) return NULL;
+
        allow_customize = 0;
        if (malloc_debug_func != NULL)
                {
@@ -319,6 +323,9 @@ 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 (realloc_debug_func != NULL)
                realloc_debug_func(str, NULL, num, file, line, 0);
        ret = realloc_ex_func(str,num,file,line);
@@ -338,15 +345,22 @@ 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 (realloc_debug_func != NULL)
                realloc_debug_func(str, NULL, num, file, line, 0);
        ret=malloc_ex_func(num,file,line);
        if(ret)
+               {
                memcpy(ret,str,old_len);
-       OPENSSL_cleanse(str,old_len);
-       free_func(str);
+               OPENSSL_cleanse(str,old_len);
+               free_func(str);
+               }
 #ifdef LEVITTE_DEBUG_MEM
-       fprintf(stderr, "LEVITTE_DEBUG_MEM:         | 0x%p -> 0x%p (%d)\n", str, ret, num);
+       fprintf(stderr,
+               "LEVITTE_DEBUG_MEM:         | 0x%p -> 0x%p (%d)\n",
+               str, ret, num);
 #endif
        if (realloc_debug_func != NULL)
                realloc_debug_func(str, ret, num, file, line, 1);