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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 new {
my($class) = shift;
my($self) = bless {
}, $class;
return $self;
}
sub generate {
my($self) = shift;
my($str) = shift;
my($time) = time(); ## 32 bits
my($hash) = 0; ## 32 bits
my($rand1) = int(rand(0xffff)); ## 16 bits
my($rand2) = int(rand(0xffff)); ## 16 bits
my($rand3) = int(rand(0xffff)); ## 16 bits
my($rand4) = $$ + int(rand(0xff)); ## 16 bits
## Hash the input string
my($length) = length($str);
for(my $i = 0; $i < $length; $i++) {
my($high) = $hash & 0xf8000000;
$hash <<= 5;
$hash ^= ($high >> 27);
$hash ^= ord(substr($str, $i, 1));
}
return sprintf("%08X-%04X-%04X-%04X-%04X%08X",
$hash, $rand1, $rand2, $rand3, $rand4, $time);
}
1;
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