.\" $OpenBSD: ENGINE_set_flags.3,v 1.2 2018/04/18 03:39:22 schwarze Exp $
.\" content checked up to:
.\" OpenSSL ENGINE_add 1f13ad31 Dec 25 17:50:39 2017 +0800
.\"
.\" Copyright (c) 2018 Ingo Schwarze <schwarze@openbsd.org>
.\"
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.\" copyright notice and this permission notice appear in all copies.
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.Dd $Mdocdate: April 18 2018 $
.Dt ENGINE_SET_FLAGS 3
.Os
.Sh NAME
.Nm ENGINE_set_flags ,
.Nm ENGINE_get_flags
.Nd modify the behaviour of an ENGINE object
.Sh SYNOPSIS
.In openssl/engine.h
.Ft int
.Fo ENGINE_set_flags
.Fa "ENGINE *e"
.Fa "int flags"
.Fc
.Ft int
.Fo ENGINE_get_flags
.Fa "const ENGINE *e"
.Fc
.Sh DESCRIPTION
.Fn ENGINE_set_flags
sets the flags attribute of
.Fa e
to the new
.Fa flags .
The previous state of the flags attribute is overwritten.
Flags that were previously set are cleared
unless they are also present in the new
.Fa flags .
.Pp
The
.Fa flags
argument can be the bitwise OR of zero or more
of the following constants:
.Bl -tag -width Ds
.It Dv ENGINE_FLAGS_BY_ID_COPY
.Xr ENGINE_by_id 3
returns a shallow copy of the
.Vt ENGINE
object it found rather than incrementing the reference count
and returning a pointer to the original.
.It Dv ENGINE_FLAGS_MANUAL_CMD_CTRL
.Xr ENGINE_ctrl 3
lets the function installed with
.Xr ENGINE_set_ctrl_function 3
handle all commands except
.Dv ENGINE_CTRL_HAS_CTRL_FUNCTION ,
even the builtin commands.
.It Dv ENGINE_FLAGS_NO_REGISTER_ALL
.Xr ENGINE_register_all_complete 3
skips
.Fa e .
.El
.Sh RETURN VALUES
.Fn ENGINE_set_flags
always returns 1.
.Pp
.Fn ENGINE_get_flags
returns the
.Fa flags
attribute of
.Fa e .
.Sh SEE ALSO
.Xr ENGINE_by_id 3 ,
.Xr ENGINE_ctrl 3 ,
.Xr ENGINE_init 3 ,
.Xr ENGINE_new 3 ,
.Xr ENGINE_register_all_complete 3 ,
.Xr ENGINE_set_RSA 3
.Sh HISTORY
.Fn ENGINE_set_flags
and
.Fn ENGINE_get_flags
first appeared in OpenSSL 0.9.7 and have been available since
.Ox 3.2 .