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CRYPTO_SET_MEM_FUNCTIONS(3) Library Functions Manual CRYPTO_SET_MEM_FUNCTIONS(3)

NAME

CRYPTO_set_mem_functions, CRYPTO_mem_ctrl, CRYPTO_mem_leaks, CRYPTO_mem_leaks_fp, CRYPTO_mem_leaks_cblegacy OpenSSL memory allocation control

SYNOPSIS

#include <openssl/crypto.h>

int
CRYPTO_set_mem_functions(void *(*m)(size_t, const char *, int), void *(*r)(void *, size_t, const char *, int), void (*f)(void *, const char *, int));

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.

(), (), (), (), and () 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_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.

March 8, 2025 Linux 6.4.0-150700.53.6-default