=pod

=head1 NAME

 CONF_modules_free, CONF_modules_finish, CONF_modules_unload -
 OpenSSL configuration cleanup functions

=head1 SYNOPSIS

 #include <openssl/conf.h>

 void CONF_modules_free(void);
 void CONF_modules_finish(void);
 void CONF_modules_unload(int all);

=head1 DESCRIPTION

CONF_modules_free() closes down and frees up all memory allocated by all
configuration modules.

CONF_modules_finish() calls each configuration modules B<finish> handler
to free up any configuration that module may have performed.

CONF_modules_unload() finishes and unloads configuration modules. If
B<all> is set to B<0> only modules loaded from DSOs will be unloads. If
B<all> is B<1> all modules, including builtin modules will be unloaded.

=head1 NOTES

Normally applications will only call CONF_modules_free() at application to
tidy up any configuration performed.

=head1 RETURN VALUE

None of the functions return a value.

=head1 SEE ALSO

L<conf(5)|conf(5)>, L<OPENSSL_config(3)|OPENSSL_config(3)>,
L<CONF_modules_load_file(3), CONF_modules_load_file(3)>

=head1 HISTORY

CONF_modules_free(), CONF_modules_unload(), and CONF_modules_finish()
first appeared in OpenSSL 0.9.7.

=cut