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package GUID;
# ************************************************************
# Description : Generate GUID's for VC7 projects and workspaces
# Author : Chad Elliott
# Create Date : 5/14/2002
# ************************************************************
# ************************************************************
# Pragmas
# ************************************************************
use strict;
# ************************************************************
# Subroutine Section
# ************************************************************
sub generate {
my($out, $in, $cwd) = @_;
my $chash = GUID::hash($cwd);
my $nhash = GUID::hash($out);
my $ihash = GUID::hash($in);
my $val = 0xfeca1bad;
return sprintf("%08X-%04X-%04X-%04X-%04X%08X",
$nhash & 0xffffffff, ($val >> 16) & 0xffff,
($val & 0xffff), ($ihash >> 16) & 0xffff,
$ihash & 0xffff, $chash & 0xffffffff);
}
sub hash {
my $str = shift;
my $value = 0;
if (defined $str) {
my $length = length($str);
for(my $i = 0; $i < $length; $i++) {
$value = (($value << 4) & 0xffffffff) ^ ($value >> 28)
^ ord(substr($str, $i, 1));
}
}
return $value;
}
1;
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