mkpath.al

platform file from motorola kernel code

# The source files are wholly original Motorola proprietary work now being 
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#       Copyright  2006, Motorola, All Rights Reserved.
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sub {
	my $item = shift;
	$item = File::dirname($item) if ref($item);

	my $mode = @_ ? shift : 0777;
	my $mkmod = $mode | 0700;
	my $chmod = $mode & ~umask;

	my @created;
	my @paths = ($item);

	while (@paths) {
		my $path = $paths[0];
		next if -d($path);

		my $parent = dirname($path);
		unless (-d($parent) || ($parent eq $path)) {
			unshift(@paths,$parent);
			redo;
		}

		if (mkdir($path,$mkmod)) {
			push(@created,$path);
		} else {
			die("mkdir: $path: $!\n") unless (-d $path);
		}
	} continue { shift(@paths) }

	chmod($chmod,reverse(@created)) unless ($mkmod == $chmod);
	@created;
}