#!/usr/local/bin/perl
#
# This adds a copyright message to a souce code file.
# It also gets the file name correct.
#
# perl util/add_cr.pl *.[ch] */*.[ch] */*/*.[ch]
#

foreach (@ARGV)
	{
	&dofile($_);
	}

sub dofile
	{
	local($file)=@_;

	open(IN,"<$file") || die "unable to open $file:$!\n";

	print STDERR "doing $file\n";
	@in=<IN>;

	return(1) if ($in[0] =~ / NOCW /);

	@out=();
	open(OUT,">$file.out") || die "unable to open $file.$$:$!\n";
	push(@out,"/* $file */\n");
	if (($in[1] !~ /^\/\* Copyright \(C\) [0-9-]+ Eric Young \(eay\@cryptsoft.com\)/))
		{
		push(@out,&Copyright);
		$i=2;
		@a=grep(/ Copyright \(C\) /,@in);
		if ($#a >= 0)
			{
			while (($i <= $#in) && ($in[$i] ne " */\n"))
				{ $i++; }
			$i++ if ($in[$i] eq " */\n");

			while (($i <= $#in) && ($in[$i] =~ /^\s*$/))
				{ $i++; }

			push(@out,"\n");
			for ( ; $i <= $#in; $i++)
				{ push(@out,$in[$i]); }
			}
		else
			{ push(@out,@in); }
		}
	else
		{
		shift(@in);
		push(@out,@in);
		}
	print OUT @out;
	close(IN);
	close(OUT);
	rename("$file","$file.orig") || die "unable to rename $file:$!\n";
	rename("$file.out",$file) || die "unable to rename $file.out:$!\n";
	}



sub Copyright
	{
	return <<'EOF';
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
EOF
	}