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      2 #
      3 # Copyright (c) 2010, Secure Endpoints Inc.
      4 # All rights reserved.
      5 #
      6 # Redistribution and use in source and binary forms, with or without
      7 # modification, are permitted provided that the following conditions
      8 # are met:
      9 #
     10 # - Redistributions of source code must retain the above copyright
     11 #   notice, this list of conditions and the following disclaimer.
     12 #
     13 # - Redistributions in binary form must reproduce the above copyright
     14 #   notice, this list of conditions and the following disclaimer in
     15 #   the documentation and/or other materials provided with the
     16 #   distribution.
     17 #
     18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     21 # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     22 # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     23 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     24 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
     26 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     28 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29 # POSSIBILITY OF SUCH DAMAGE.
     30 #
     31 
     32 use Getopt::Long;
     33 use Pod::Usage;
     34 use feature "switch";
     35 
     36 my $def_name = '';
     37 my $vs_name = '';
     38 my $show_help = 0;
     39 
     40 my %syms;
     41 
     42 my $def_only = 0;
     43 my $vs_only = 0;
     44 
     45 GetOptions ("def=s" => \$def_name,
     46 	    "vs=s" => \$vs_name,
     47 	    "help|?" => \$show_help) or pod2usage( -exitval => 2,
     48 						   -verbose => 3 );
     49 pod2usage( -exitval => 1,
     50 	   -verbose => 3 ) if $show_help or !$def_name or !$vs_name;
     51 
     52 open (my $def, '<', $def_name) or die $!;
     53 open (my $vs, '<', $vs_name) or die $!;
     54 
     55 # First go through the version-script
     56 
     57 my $global = 0;
     58 
     59 while(<$vs>)
     60 {
     61     next unless m/^([^#]+)/;
     62 
     63     @a = split(/\s+|({|})/,$1);
     64 
     65     for $f (@a) {
     66 	given ($f) {
     67 	    when (/global\:/) { $global = 1; }
     68 	    when (/{|}|.*\:/) { $global = 0; }
     69 	    when (/(.*)\;/ and $global == 1) {
     70 		$syms{$1} = 1;
     71 	    }
     72 	}
     73     }
     74 }
     75 
     76 while(<$def>)
     77 {
     78     next if m/^#/;
     79     next unless m/^;!([^;]+)/ or m/^([^;]+);?(!?)/;
     80 
     81     @a = split(/\s+/, $1);
     82 
     83     for $f (@a) {
     84 	next if $f =~ /EXPORTS/ or $f =~ /DATA/ or not $f;
     85 
     86 	if (not exists $syms{$f} and not $2) {
     87 	    print "$f: Only in DEF\n";
     88 	    ++$def_only;
     89 	}
     90 	delete $syms{$f};
     91     }
     92 }
     93 
     94 #while (($k,$v) = each %syms) {
     95 for $k (sort keys %syms) {
     96     print "$k: Only in VS\n";
     97     ++$vs_only;
     98 }
     99 
    100 close($def);
    101 close($vs);
    102 
    103 if ($def_only or $vs_only) {
    104     print "\nMismatches found.\n";
    105     exit(1);
    106 }
    107 
    108 __END__
    109 
    110 =head1 NAME
    111 
    112 w32-sync-exported-symbols.pl - Synchronize Windows .def with version-script
    113 
    114 =head1 SYNOPSIS
    115 
    116 w32-sync-exported-symbols.pl {options}
    117 
    118   Options:
    119     --def        Name of .def file
    120     --vs         Name of version-script file
    121 
    122 =head1 DESCRIPTION
    123 
    124 Verifies that all the symbols exported by the version-script is also
    125 accounted for in the .def file.  Also checks that no extra symbols are
    126 exported by the .def file unless they are marked as safe.
    127 
    128 =cut
    129 
    130