crypto/external/bsd/openssl/dist/ms/uplink-common.pl

   1 #!/usr/bin/env perl
   2 #
   3 # pull APPLINK_MAX value from applink.c...
   4 $applink_c=$0;
   5 $applink_c=~s|[^/\\]+$||g;
   6 $applink_c.="applink.c";
   7 open(INPUT,$applink_c) || die "can't open $applink_c: $!";
   8 @max=grep {/APPLINK_MAX\s+(\d+)/} <INPUT>;
   9 close(INPUT);
  10 ($#max==0) or die "can't find APPLINK_MAX in $applink_c";
  11
  12 $max[0]=~/APPLINK_MAX\s+(\d+)/;
  13 $N=$1;  # number of entries in OPENSSL_UplinkTable not including
  14         # OPENSSL_UplinkTable[0], which contains this value...
  15
  16 1;
  17
  18 # Idea is to fill the OPENSSL_UplinkTable with pointers to stubs
  19 # which invoke 'void OPENSSL_Uplink (ULONG_PTR *table,int index)';
  20 # and then dereference themselves. Latter shall result in endless
  21 # loop *unless* OPENSSL_Uplink does not replace 'table[index]' with
  22 # something else, e.g. as 'table[index]=unimplemented;'...