1.\" $OpenBSD: SSL_COMP_add_compression_method.3,v 1.4 2018/03/23 00:10:28 schwarze 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: March 23 2018 $ 18.Dt SSL_COMP_ADD_COMPRESSION_METHOD 3 19.Os 20.Sh NAME 21.Nm SSL_COMP_add_compression_method , 22.Nm SSL_COMP_get_compression_methods 23.Nd handle SSL/TLS integrated compression methods 24.Sh SYNOPSIS 25.In openssl/ssl.h 26.Ft int 27.Fn SSL_COMP_add_compression_method "int id" "COMP_METHOD *cm" 28.Ft STACK_OF(SSL_COMP) * 29.Fn SSL_COMP_get_compression_methods void 30.Sh DESCRIPTION 31These functions are deprecated and have no effect. 32They are provided purely for compatibility with legacy application code. 33.Pp 34.Fn SSL_COMP_add_compression_method 35used to add the compression method 36.Fa cm 37with the identifier 38.Fa id 39to the list of available compression methods. 40.Pp 41.Fn SSL_COMP_get_compression_methods 42used to return a stack of available compression methods. 43.Sh RETURN VALUES 44.Fn SSL_COMP_add_compression_method 45always returns 1. 46.Fn SSL_COMP_get_compression_methods 47always returns 48.Dv NULL . 49.Sh HISTORY 50.Fn SSL_COMP_add_compression_method 51first appeared in OpenSSL 0.9.2b and has been available since 52.Ox 2.6 . 53.Pp 54.Fn SSL_COMP_get_compression_methods 55first appeared in OpenSSL 0.9.8 and has been available since 56.Ox 4.5 . 57