Hello

I am using Win32::Exe to extract version info from windows executables. This module parses binary without using of WinAPI so it can be used on Linux too. Some files (packed) cannot be processed, and I use eval() to skip them. Today I discovered one windows system file (shell32.dll) which put the PC in the infinite loop — the are no errors, no warnings — the eval() cannot help here. The only solution I found is using $SIG{ALRM} to escape by timeout:

#!/usr/bin/perl
use strict;
use warnings;
use Win32::Exe;

$SIG{ALRM} = sub {die "timeout"};

eval{
    alarm(1);
    Win32::Exe->new($ARGV[0]);
    alarm(0);
};

if($@){
    if($@ =~/timeout/){die "timeout detected"};
}else{
    print "ok, can parse $ARGV[0]\n";
};

[download]
I test it on Linux and Windows, old and new module version. Before I post the bug I would try to find out the problem.

Here the binary (shell32.dll from Windows XP SP1 German):

http://rapidshare.com/files/139266982/shell32.dll_cannot_get_version_info.html

Some ideas?

In reply to method "new" leads to infinite loop with 100% CPU, troubleshooting?? by resistance

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