1.\" $OpenBSD: SSL_set_connect_state.3,v 1.2 2016/12/04 12:20:54 schwarze Exp $ 2.\" OpenSSL b97fdb57 Nov 11 09:33:09 2016 +0100 3.\" 4.\" This file was written by Lutz Jaenicke <jaenicke@openssl.org>. 5.\" Copyright (c) 2001, 2002 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 4 2016 $ 52.Dt SSL_SET_CONNECT_STATE 3 53.Os 54.Sh NAME 55.Nm SSL_set_connect_state , 56.Nm SSL_set_accept_state 57.Nd prepare SSL object to work in client or server mode 58.Sh SYNOPSIS 59.In openssl/ssl.h 60.Ft void 61.Fn SSL_set_connect_state "SSL *ssl" 62.Ft void 63.Fn SSL_set_accept_state "SSL *ssl" 64.Sh DESCRIPTION 65.Fn SSL_set_connect_state 66sets 67.Fa ssl 68to work in client mode. 69.Pp 70.Fn SSL_set_accept_state 71sets 72.Fa ssl 73to work in server mode. 74.Pp 75When the 76.Vt SSL_CTX 77object was created with 78.Xr SSL_CTX_new 3 , 79it was either assigned a dedicated client method, a dedicated server method, or 80a generic method, that can be used for both client and server connections. 81(The method might have been changed with 82.Xr SSL_CTX_set_ssl_version 3 83or 84.Xr SSL_set_ssl_method 3 . ) 85.Pp 86When beginning a new handshake, the SSL engine must know whether it must call 87the connect (client) or accept (server) routines. 88Even though it may be clear from the method chosen whether client or server 89mode was requested, the handshake routines must be explicitly set. 90.Pp 91When using the 92.Xr SSL_connect 3 93or 94.Xr SSL_accept 3 95routines, the correct handshake routines are automatically set. 96When performing a transparent negotiation using 97.Xr SSL_write 3 98or 99.Xr SSL_read 3 , 100the handshake routines must be explicitly set in advance using either 101.Fn SSL_set_connect_state 102or 103.Fn SSL_set_accept_state . 104.Sh RETURN VALUES 105.Fn SSL_set_connect_state 106and 107.Fn SSL_set_accept_state 108do not return diagnostic information. 109.Sh SEE ALSO 110.Xr ssl 3 , 111.Xr SSL_accept 3 , 112.Xr SSL_connect 3 , 113.Xr SSL_CTX_new 3 , 114.Xr SSL_CTX_set_ssl_version 3 , 115.Xr SSL_do_handshake 3 , 116.Xr SSL_new 3 , 117.Xr SSL_read 3 , 118.Xr SSL_write 3 119