1.\" $OpenBSD: OPENSSL_load_builtin_modules.3,v 1.8 2023/12/05 02:41:13 jsg Exp $ 2.\" OpenSSL b97fdb57 Nov 11 09:33:09 2016 +0100 3.\" 4.\" This file was written by Dr. Stephen Henson <steve@openssl.org>. 5.\" Copyright (c) 2004, 2013 The OpenSSL Project. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in 16.\" the documentation and/or other materials provided with the 17.\" distribution. 18.\" 19.\" 3. All advertising materials mentioning features or use of this 20.\" software must display the following acknowledgment: 21.\" "This product includes software developed by the OpenSSL Project 22.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 23.\" 24.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 25.\" endorse or promote products derived from this software without 26.\" prior written permission. For written permission, please contact 27.\" openssl-core@openssl.org. 28.\" 29.\" 5. Products derived from this software may not be called "OpenSSL" 30.\" nor may "OpenSSL" appear in their names without prior written 31.\" permission of the OpenSSL Project. 32.\" 33.\" 6. Redistributions of any form whatsoever must retain the following 34.\" acknowledgment: 35.\" "This product includes software developed by the OpenSSL Project 36.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" 37.\" 38.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 39.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 41.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 42.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 44.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 45.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 48.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 49.\" OF THE POSSIBILITY OF SUCH DAMAGE. 50.\" 51.Dd $Mdocdate: December 5 2023 $ 52.Dt OPENSSL_LOAD_BUILTIN_MODULES 3 53.Os 54.Sh NAME 55.Nm OPENSSL_load_builtin_modules , 56.Nm ASN1_add_oid_module 57.Nd add standard configuration modules 58.Sh SYNOPSIS 59.In openssl/conf.h 60.Ft void 61.Fn OPENSSL_load_builtin_modules void 62.Ft void 63.Fn ASN1_add_oid_module void 64.Sh DESCRIPTION 65The function 66.Fn OPENSSL_load_builtin_modules 67adds all the standard OpenSSL configuration modules to the internal 68list. 69They can then be used by the OpenSSL configuration code. 70.Pp 71.Fn ASN1_add_oid_module 72adds just the ASN.1 OBJECT module. 73.Pp 74If the simple configuration function 75.Xr OPENSSL_config 3 76is called then 77.Fn OPENSSL_load_builtin_modules 78is called automatically. 79.Pp 80Applications which use configuration functions like 81.Xr CONF_modules_load_file 3 82directly need to call 83.Fn OPENSSL_load_builtin_modules 84themselves 85.Em before 86any other configuration code. 87.Pp 88Applications should call 89.Xr OPENSSL_config 3 90or 91.Fn OPENSSL_load_builtin_modules 92to load all configuration modules instead of adding modules selectively: 93otherwise functionality may be missing from the application when 94new modules are added. 95.Sh SEE ALSO 96.Xr CONF_modules_load_file 3 , 97.Xr OPENSSL_config 3 98.Sh HISTORY 99These functions first appeared in OpenSSL 0.9.7 100and have been available since 101.Ox 3.2 . 102