CRYPTO_GET_MEM_FUNCTIONS(3) Library Functions ManualCRYPTO_GET_MEM_FUNCTIONS(3)
NAME
CRYPTO_get_mem_functions, CRYPTO_set_mem_functions, CRYPTO_mem_ctrl, CRYPTO_mem_leaks, CRYPTO_mem_leaks_fp, CRYPTO_mem_leaks_cb — legacy OpenSSL memory allocation control
SYNOPSIS
#include <openssl/crypto.h>
void
CRYPTO_get_mem_functions(void *(**m)(size_t), void *(**r)(void *, size_t), void (**f)(void *));
int
CRYPTO_set_mem_functions(void *(*m)(size_t), void *(*r)(void *, size_t), void (*f)(void *));
int
CRYPTO_mem_ctrl(int mode);
int
CRYPTO_mem_leaks(BIO *b);
int
CRYPTO_mem_leaks_fp(FILE *fp);
typedef int *
CRYPTO_MEM_LEAK_CB(unsigned long, const char *, int, int, void *);
int
CRYPTO_mem_leaks_cb(CRYPTO_MEM_LEAK_CB *cb);
DESCRIPTION
Do not use any of the interfaces documented here. They are provided purely for compatibility with legacy application code.
CRYPTO_get_mem_functions() assigns pointers to the C library functions malloc(3), realloc(3), and free(3) to those of its arguments that are not NULL.
CRYPTO_set_mem_functions(), CRYPTO_mem_ctrl(), CRYPTO_mem_leaks(), CRYPTO_mem_leaks_fp(), and CRYPTO_mem_leaks_cb() have no effect.
RETURN VALUES
CRYPTO_set_mem_functions() always returns 0.
CRYPTO_mem_ctrl() always returns CRYPTO_MEM_CHECK_OFF.
CRYPTO_mem_leaks(), CRYPTO_mem_leaks_fp(), and CRYPTO_mem_leaks_cb() always return -1.
SEE ALSO
crypto(3)
HISTORY
CRYPTO_mem_ctrl(), CRYPTO_mem_leaks(), and CRYPTO_mem_leaks_fp() first appeared in SSLeay 0.6.4. CRYPTO_get_mem_functions() and CRYPTO_set_mem_functions() first appeared in SSLeay 0.6.5. CRYPTO_mem_leaks_cb() first appeared in SSLeay 0.6.6. All these functions have all been available since OpenBSD 2.4. GNU June 10, 2019 CRYPTO_GET_MEM_FUNCTIONS(3)