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      1 #! /usr/bin/env perl
      2 # Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
      3 #
      4 # Licensed under the Apache License 2.0 (the "License").  You may not use
      5 # this file except in compliance with the License.  You can obtain a copy
      6 # in the file LICENSE in the source distribution or at
      7 # https://www.openssl.org/source/license.html
      8 
      9 # pull APPLINK_MAX value from applink.c...
     10 $applink_c=$0;
     11 $applink_c=~s|[^/\\]+$||g;
     12 $applink_c.="applink.c";
     13 open(INPUT,$applink_c) || die "can't open $applink_c: $!";
     14 @max=grep {/APPLINK_MAX\s+(\d+)/} <INPUT>;
     15 close(INPUT);
     16 ($#max==0) or die "can't find APPLINK_MAX in $applink_c";
     17 
     18 $max[0]=~/APPLINK_MAX\s+(\d+)/;
     19 $N=$1;	# number of entries in OPENSSL_UplinkTable not including
     20 	# OPENSSL_UplinkTable[0], which contains this value...
     21 
     22 1;
     23 
     24 # Idea is to fill the OPENSSL_UplinkTable with pointers to stubs
     25 # which invoke 'void OPENSSL_Uplink (ULONG_PTR *table,int index)';
     26 # and then dereference themselves. Latter shall result in endless
     27 # loop *unless* OPENSSL_Uplink does not replace 'table[index]' with
     28 # something else, e.g. as 'table[index]=unimplemented;'...
     29