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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" openssl\-engine, engine \- load and query engines .SH "SYNOPSIS" .IX Header "SYNOPSIS" \&\fBopenssl engine\fR [ \fIengine...\fR ] [\fB\-v\fR] [\fB\-vv\fR] [\fB\-vvv\fR] [\fB\-vvv\fR] [\fB\-vvv\fR] [\fB\-c\fR] [\fB\-t\fR] [\fB\-tt\fR] [\fB\-pre\fR \fIcommand\fR] [\fB\-post\fR \fIcommand\fR] [ \fIengine...\fR ] .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \fBengine\fR command is used to query the status and capabilities of the specified \fBengine\fR's. Engines may be specified before and after all other command-line flags. Only those specified are queried. .SH "OPTIONS" .IX Header "OPTIONS" .IP "\fB\-v\fR \fB\-vv\fR \fB\-vvv\fR \fB\-vvvv\fR" 4 .IX Item "-v -vv -vvv -vvvv" Provides information about each specified engine. The first flag lists all the possible run-time control commands; the second adds a description of each command; the third adds the input flags, and the final option adds the internal input flags. .IP "\fB\-c\fR" 4 .IX Item "-c" Lists the capabilities of each engine. .IP "\fB\-t\fR" 4 .IX Item "-t" Tests if each specified engine is available, and displays the answer. .IP "\fB\-tt\fR" 4 .IX Item "-tt" Displays an error trace for any unavailable engine. .IP "\fB\-pre\fR \fIcommand\fR" 4 .IX Item "-pre command" .PD 0 .IP "\fB\-post\fR \fIcommand\fR" 4 .IX Item "-post command" .PD Command-line configuration of engines. The \fB\-pre\fR command is given to the engine before it is loaded and the \fB\-post\fR command is given after the engine is loaded. The \fIcommand\fR is of the form \fIcmd:val\fR where \fIcmd\fR is the command, and \fIval\fR is the value for the command. See the example below. .SH "EXAMPLES" .IX Header "EXAMPLES" To list all the commands available to a dynamic engine: .PP .Vb 10 \& $ openssl engine \-t \-tt \-vvvv dynamic \& (dynamic) Dynamic engine loading support \& [ unavailable ] \& SO_PATH: Specifies the path to the new ENGINE shared library \& (input flags): STRING \& NO_VCHECK: Specifies to continue even if version checking fails (boolean) \& (input flags): NUMERIC \& ID: Specifies an ENGINE id name for loading \& (input flags): STRING \& LIST_ADD: Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory) \& (input flags): NUMERIC \& DIR_LOAD: Specifies whether to load from \*(AqDIR_ADD\*(Aq directories (0=no,1=yes,2=mandatory) \& (input flags): NUMERIC \& DIR_ADD: Adds a directory from which ENGINEs can be loaded \& (input flags): STRING \& LOAD: Load up the ENGINE specified by other settings \& (input flags): NO_INPUT .Ve .PP To list the capabilities of the \fIrsax\fR engine: .PP .Vb 4 \& $ openssl engine \-c \& (rsax) RSAX engine support \& [RSA] \& (dynamic) Dynamic engine loading support .Ve .SH "ENVIRONMENT" .IX Header "ENVIRONMENT" .IP "\fB\s-1OPENSSL_ENGINES\s0\fR" 4 .IX Item "OPENSSL_ENGINES" The path to the engines directory. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBconfig\fR\|(5) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2016\-2019 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.