#! /usr/bin/env perl

# Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.

#

# Licensed under the OpenSSL license (the "License").  You may not use

# this file except in compliance with the License.  You can obtain a copy

# in the file LICENSE in the source distribution or at

# https://www.openssl.org/source/license.html

# pull APPLINK_MAX value from applink.c...

$applink_c=$0;

$applink_c=~s|[^/\\]+$||g;

$applink_c.="applink.c";

open(INPUT,$applink_c) || die "can't open $applink_c: $!";

@max=grep {/APPLINK_MAX\s+(\d+)/} <INPUT>;

close(INPUT);

($#max==0) or die "can't find APPLINK_MAX in $applink_c";

$max[0]=~/APPLINK_MAX\s+(\d+)/;

$N=$1;	# number of entries in OPENSSL_UplinkTable not including

	# OPENSSL_UplinkTable[0], which contains this value...

1;

# Idea is to fill the OPENSSL_UplinkTable with pointers to stubs

# which invoke 'void OPENSSL_Uplink (ULONG_PTR *table,int index)';

# and then dereference themselves. Latter shall result in endless

# loop *unless* OPENSSL_Uplink does not replace 'table[index]' with

# something else, e.g. as 'table[index]=unimplemented;'...