Reallocate a buffer, securely clearing any released trailing bytes.
Declared in <openssl/crypto.h>
void*
CRYPTO_clear_realloc(
void* addr,
size_t old_num,
size_t num,
char const* file,
int line);
Reallocated pointer, or NULL on failure (original block left allocated on failure).
| Name | Description |
|---|---|
| addr | Existing allocation, or NULL to allocate anew. |
| old_num | Previous size in bytes (used when clearing shrunk regions). |
| num | New size in bytes. |
| file | Source file name recorded with the allocation (usually FILE). |
| line | Source line recorded with the allocation (usually LINE). |