1.\" $OpenBSD: CRYPTO_get_mem_functions.3,v 1.2 2016/11/29 21:29:19 jmc Exp $ 2.\" 3.\" Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: November 29 2016 $ 18.Dt CRYPTO_GET_MEM_FUNCTIONS 3 19.Os 20.Sh NAME 21.Nm CRYPTO_get_mem_functions , 22.Nm CRYPTO_set_mem_functions , 23.Nm CRYPTO_mem_ctrl , 24.Nm CRYPTO_mem_leaks , 25.Nm CRYPTO_mem_leaks_fp 26.Nd legacy OpenSSL memory allocation control 27.Sh SYNOPSIS 28.In openssl/crypto.h 29.Ft void 30.Fo CRYPTO_get_mem_functions 31.Fa "void *(**m)(size_t)" 32.Fa "void *(**r)(void *, size_t)" 33.Fa "void (**f)(void *)" 34.Fc 35.Ft int 36.Fo CRYPTO_set_mem_functions 37.Fa "void *(*m)(size_t)" 38.Fa "void *(*r)(void *, size_t)" 39.Fa "void (*f)(void *)" 40.Fc 41.Ft int 42.Fo CRYPTO_mem_ctrl 43.Fa "int mode" 44.Fc 45.Ft void 46.Fo CRYPTO_mem_leaks 47.Fa "BIO *b" 48.Fc 49.Ft void 50.Fo CRYPTO_mem_leaks_fp 51.Fa "FILE *fp" 52.Fc 53.Sh DESCRIPTION 54Do not use any of the interfaces documented here. 55They are provided purely for compatibility with legacy application code. 56.Pp 57.Fn CRYPTO_get_mem_functions 58assigns pointers to the C library functions 59.Xr malloc 3 , 60.Xr realloc 3 , 61and 62.Xr free 3 63to those of its arguments that are not 64.Dv NULL . 65.Pp 66.Fn CRYPTO_set_mem_functions , 67.Fn CRYPTO_mem_ctrl , 68.Fn CRYPTO_mem_leaks , 69and 70.Fn CRYPTO_mem_leaks_fp 71have no effect. 72.Sh RETURN VALUES 73.Fn CRYPTO_set_mem_functions 74always returns 0. 75.Pp 76.Fn CRYPTO_mem_ctrl 77always returns 78.Dv CRYPTO_MEM_CHECK_OFF . 79