.\"	$OpenBSD: SSL_library_init.3,v 1.7 2019/06/14 13:41:31 schwarze Exp $
.\"	OpenSSL b97fdb57 Nov 11 09:33:09 2016 +0100
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.Dd $Mdocdate: June 14 2019 $
.Dt SSL_LIBRARY_INIT 3
.Os
.Sh NAME
.Nm SSL_library_init ,
.Nm OpenSSL_add_ssl_algorithms ,
.Nm SSLeay_add_ssl_algorithms
.Nd initialize SSL library by registering algorithms
.Sh SYNOPSIS
.In openssl/ssl.h
.Ft int
.Fn SSL_library_init void
.Ft int
.Fn OpenSSL_add_ssl_algorithms void
.Ft int
.Fn SSLeay_add_ssl_algorithms void
.Sh DESCRIPTION
These functions are deprecated.
It is never useful for any application program to call any of them explicitly.
The library automatically calls them internally whenever needed.
.Pp
.Fn SSL_library_init
registers the available ciphers and digests
which are used directly or indirectly by TLS.
.Pp
.Fn OpenSSL_add_ssl_algorithms
and
.Fn SSLeay_add_ssl_algorithms
are synonyms for
.Fn SSL_library_init
and are implemented as macros.
.Sh RETURN VALUES
.Fn SSL_library_init
always returns 1.
.Sh SEE ALSO
.Xr ssl 3
.Sh HISTORY
.Fn SSLeay_add_ssl_algorithms
first appeared in SSLeay 0.8.0 and has been available since
.Ox 2.4 .
.Pp
.Fn SSL_library_init
first appeared in OpenSSL 0.9.2b and has been available since
.Ox 2.6 .
.Pp
.Fn OpenSSL_add_ssl_algorithms
first appeared in OpenSSL 0.9.5 and has been available since
.Ox 2.7 .