1.\" $OpenBSD: X509_SIG_get0.3,v 1.1 2021/10/23 15:39:06 tb Exp $ 2.\" full merge up to: OpenSSL 61f805c1 Jan 16 01:01:46 2018 +0800 3.\" 4.\" This file was written by Dr. Stephen Henson <steve@openssl.org>. 5.\" Copyright (c) 2016 The OpenSSL Project. 6.\" All rights reserved. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in 17.\" the documentation and/or other materials provided with the 18.\" distribution. 19.\" 20.\" 3. All advertising materials mentioning features or use of this 21.\" software must display the following acknowledgment: 22.\" "This product includes software developed by the OpenSSL Project 23.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 24.\" 25.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26.\" endorse or promote products derived from this software without 27.\" prior written permission. For written permission, please contact 28.\" openssl-core@openssl.org. 29.\" 30.\" 5. Products derived from this software may not be called "OpenSSL" 31.\" nor may "OpenSSL" appear in their names without prior written 32.\" permission of the OpenSSL Project. 33.\" 34.\" 6. Redistributions of any form whatsoever must retain the following 35.\" acknowledgment: 36.\" "This product includes software developed by the OpenSSL Project 37.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" 38.\" 39.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50.\" OF THE POSSIBILITY OF SUCH DAMAGE. 51.\" 52.Dd $Mdocdate: October 23 2021 $ 53.Dt X509_SIG_GET0 3 54.Os 55.Sh NAME 56.Nm X509_SIG_get0 , 57.Nm X509_SIG_getm 58.Nd DigestInfo functions 59.Sh SYNOPSIS 60.In openssl/x509.h 61.Ft void 62.Fo X509_SIG_get0 63.Fa "const X509_SIG *sig" 64.Fa "const X509_ALGOR **palg" 65.Fa "const ASN1_OCTET_STRING **pdigest" 66.Fc 67.Ft void 68.Fo X509_SIG_getm 69.Fa "X509_SIG *sig" 70.Fa "X509_ALGOR **palg" 71.Fa "ASN1_OCTET_STRING **pdigest" 72.Fc 73.Sh DESCRIPTION 74.Fn X509_SIG_get0 75returns pointers to the algorithm identifier and digest value in 76.Fa sig . 77.Fn X509_SIG_getm 78is identical to 79.Fn X509_SIG_get0 , 80except the pointers returned are not constant and can be modified, 81for example to initialise them. 82.Sh SEE ALSO 83.Xr d2i_X509 3 , 84.Xr X509_SIG_new 3 85.Sh HISTORY 86.Fn X509_SIG_get0 87and 88.Fn X509_SIG_getm 89first appeared in OpenSSL 1.1.0 and have been available since 90.Ox 7.1 . 91