1.\" $OpenBSD: SSL_CTX_get0_certificate.3,v 1.3 2019/06/12 09:36:30 schwarze Exp $ 2.\" 3.\" Copyright (c) 2018 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: June 12 2019 $ 18.Dt SSL_CTX_GET0_CERTIFICATE 3 19.Os 20.Sh NAME 21.Nm SSL_CTX_get0_certificate 22.Nd get the active certificate from an SSL context 23.Sh SYNOPSIS 24.Ft X509 * 25.Fo SSL_CTX_get0_certificate 26.Fa "const SSL_CTX *ctx" 27.Fc 28.Sh DESCRIPTION 29The 30.Fn SSL_CTX_get0_certificate 31function returns an internal pointer 32to the ASN.1 certificate currently active in 33.Fa ctx 34or 35.Dv NULL 36if none was installed with 37.Xr SSL_CTX_use_certificate 3 38or similar functions. 39.Pp 40The returned pointer must not be freed by the caller. 41.Sh SEE ALSO 42.Xr ssl 3 , 43.Xr SSL_CTX_new 3 , 44.Xr SSL_CTX_use_certificate 3 , 45.Xr X509_get_pubkey 3 , 46.Xr X509_get_subject_name 3 , 47.Xr X509_new 3 48.Sh HISTORY 49.Fn SSL_CTX_get0_certificate 50first appeared in OpenSSL 1.0.2 and have been available since 51.Ox 6.3 . 52