/*	$NetBSD: uuencode.c,v 1.8 1997/10/20 02:51:01 lukem Exp $	*/

/*-
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * 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 above 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 software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS 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.
 */

void begin_encode()
{
        (void)printf("begin 644 picture.yuv\n", mode, *argv);
}

/* ENC is the basic 1 character encoding function to make a char printing */
#define	ENC(c) ((c) ? ((c) & 077) + ' ': '`')


int encode(char * buffer, int buflen)
{
	int ch, n;
	char *p;

		ch = ENC(buflen);
		if (putchar(ch) == EOF)
			break;
		for (p = buf; n > 0; n -= 3, p += 3) {
			ch = *p >> 2;
			ch = ENC(ch);
			if (putchar(ch) == EOF)
				break;
			ch = ((*p << 4) & 060) | ((p[1] >> 4) & 017);
			ch = ENC(ch);
			if (putchar(ch) == EOF)
				break;
			ch = ((p[1] << 2) & 074) | ((p[2] >> 6) & 03);
			ch = ENC(ch);
			if (putchar(ch) == EOF)
				break;
			ch = p[2] & 077;
			ch = ENC(ch);
			if (putchar(ch) == EOF)
				break;
		}
		if (putchar('\n') == EOF)
			break;
}

void end_encode()
{
	ch = ENC('\0');
	(void)putchar(ch);
	(void)putchar('\n');
}

static void
usage()
{
	(void)fprintf(stderr,"usage: uuencode [infile] remotefile\n");
	exit(1);
}