openssl/ms/uplink-common.pl

#!/usr/bin/env perl
#
# 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;'...