1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (C) 1999 by Andrey A. Chernov, Moscow, Russia.
5 * (C) 18 Sep 1999, Alex G. Bulushev (bag@demos.su)
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include "lp.cdefs.h"		/* A cross-platform version of <sys/cdefs.h> */
31__FBSDID("$FreeBSD$");
32
33/*
34 * KOI8-R -> CP855 conversion filter (Russian character sets)
35 */
36
37#include <sys/types.h>
38#include <signal.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <unistd.h>
42
43int length = 66;
44int lines;
45
46unsigned char koi2855 [] = {
470xc4, 0xb3, 0xda, 0xbf, 0xc0, 0xd9, 0xc3, 0xb4,
480xc2, 0xc1, 0xc5, 0xdf, 0xdc, 0xdb, 0xdb, 0xdb,
490xb0, 0xb1, 0xb2, 0xda, 0xfe, 0x2e, 0xad, 0x3d,
500xae, 0xaf, 0xff, 0xd9, 0xcf, 0x32, 0x2e, 0x25,
510xcd, 0xba, 0xc9, 0x84, 0xc9, 0xc9, 0xbb, 0xbb,
520xbb, 0xc8, 0xc8, 0xc8, 0xbc, 0xbc, 0xbc, 0xcc,
530xcc, 0xcc, 0xb9, 0x85, 0xb9, 0xb9, 0xcb, 0xcb,
540xcb, 0xca, 0xca, 0xca, 0xce, 0xce, 0xce, 0x43,
550x9c, 0xa0, 0xa2, 0xa4, 0xa6, 0xa8, 0xaa, 0xac,
560xb5, 0xb7, 0xbd, 0xc6, 0xd0, 0xd2, 0xd4, 0xd6,
570xd8, 0xde, 0xe1, 0xe3, 0xe5, 0xe7, 0xe9, 0xeb,
580xed, 0xf1, 0xf3, 0xf5, 0xf7, 0xf9, 0xfb, 0x9e,
590x9d, 0xa1, 0xa3, 0xa5, 0xa7, 0xa9, 0xab, 0xad,
600xb6, 0xb8, 0xbe, 0xc7, 0xd1, 0xd3, 0xd5, 0xd7,
610xdd, 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec,
620xee, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0x9f
63};
64
65int main(int argc, char *argv[])
66{
67	int c, i;
68	char *cp;
69
70	while (--argc) {
71		if (*(cp = *++argv) == '-') {
72			switch (*++cp) {
73			case 'l':
74				if ((i = atoi(++cp)) > 0)
75					length = i;
76				break;
77			}
78		}
79	}
80
81	while ((c = getchar()) != EOF) {
82		if (c == '\031') {
83			if ((c = getchar()) == '\1') {
84				lines = 0;
85				fflush(stdout);
86				kill(getpid(), SIGSTOP);
87				continue;
88			} else {
89				ungetc(c, stdin);
90				c = '\031';
91			}
92		} else if (c & 0x80) {
93			putchar(koi2855[c & 0x7F]);
94			continue;
95		} else if (c == '\n')
96			lines++;
97		else if (c == '\f')
98			lines = length;
99		putchar(c);
100		if (lines >= length) {
101			lines = 0;
102			fflush(stdout);
103		}
104	}
105	return 0;
106}
107