/* $NetBSD: bcd.c,v 1.17 2009/08/12 05:21:28 dholland Exp $ */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Steve Hayman of the Indiana University Computer Science Dept.
*
* 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. 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1989, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)bcd.c 8.2 (Berkeley) 3/20/94";
#else
__RCSID("$NetBSD: bcd.c,v 1.17 2009/08/12 05:21:28 dholland Exp $");
#endif
#endif /* not lint */
/*
* bcd --
*
* Read one line of standard input and produce something that looks like a
* punch card. An attempt to reimplement /usr/games/bcd. All I looked at
* was the man page.
*
* I couldn't find a BCD table handy so I wrote a shell script to deduce what
* the patterns were that the old bcd was using for each possible 8-bit
* character. These are the results -- the low order 12 bits represent the
* holes. (A 1 bit is a hole.) These may be wrong, but they match the old
* program!
*
* Steve Hayman
* sahayman@iuvax.cs.indiana.edu
* 1989 11 30
*
*
* I found an error in the table. The same error is found in the SunOS 4.1.1
* version of bcd. It has apparently been around a long time. The error caused
* 'Q' and 'R' to have the same punch code. I only noticed the error due to
* someone pointing it out to me when the program was used to print a cover
* for an APA! The table was wrong in 4 places. The other error was masked
* by the fact that the input is converted to upper case before lookup.
*
* Dyane Bruce
* db@diana.ocunix.on.ca
* Nov 5, 1993
*/
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
static const u_short holes[256] = {
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x206, 0x20a, 0x042, 0x442, 0x222, 0x800, 0x406,
0x812, 0x412, 0x422, 0xa00, 0x242, 0x400, 0x842, 0x300,
0x200, 0x100, 0x080, 0x040, 0x020, 0x010, 0x008, 0x004,
0x002, 0x001, 0x012, 0x40a, 0x80a, 0x212, 0x00a, 0x006,
0x022, 0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804,
0x802, 0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408,
0x404, 0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208,
0x204, 0x202, 0x201, 0x082, 0x822, 0x600, 0x282, 0x30f,
0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x206, 0x20a, 0x042, 0x442, 0x222, 0x800, 0x406, 0x812,
0x412, 0x422, 0xa00, 0x242, 0x400, 0x842, 0x300, 0x200,
0x100, 0x080, 0x040, 0x020, 0x010, 0x008, 0x004, 0x002,
0x001, 0x012, 0x40a, 0x80a, 0x212, 0x00a, 0x006, 0x022,
0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x30f,
0x900, 0x880, 0x840, 0x820, 0x810, 0x808, 0x804, 0x802,
0x801, 0x500, 0x480, 0x440, 0x420, 0x410, 0x408, 0x404,
0x402, 0x401, 0x280, 0x240, 0x220, 0x210, 0x208, 0x204,
0x202, 0x201, 0x082, 0x806, 0x822, 0x600, 0x282, 0x0
};
/*
* i'th bit of w.
*/
#define bit(w,i) ((w)&(1<<(i)))
static void printcard(char *);
int
main(int argc, char **argv)
{
char cardline[80];
/* revoke setgid privileges */
setgid(getgid());
/*
* The original bcd prompts with a "%" when reading from stdin,
* but this seems kind of silly. So this one doesn't.
*/
if (argc > 1) {
while (--argc)
printcard(*++argv);
} else
while (fgets(cardline, sizeof(cardline), stdin))
printcard(cardline);
exit(0);
}
#define COLUMNS 48
static void
printcard(char *str)
{
static const char rowchars[] = " 123456789";
int i, row;
char *p;
/* ruthlessly remove newlines and truncate at 48 characters. */
if ((p = strchr(str, '\n')))
*p = '\0';
if (strlen(str) > COLUMNS)
str[COLUMNS] = '\0';
/* make string upper case. */
for (p = str; *p; ++p)
if (isascii((unsigned char)*p) && islower((unsigned char)*p))
*p = toupper((unsigned char) *p);
/* top of card */
putchar(' ');
for (i = 1; i <= COLUMNS; ++i)
putchar('_');
putchar('\n');
/*
* line of text. Leave a blank if the character doesn't have
* a hole pattern.
*/
p = str;
putchar('/');
for (i = 1; *p; i++, p++)
if (holes[(unsigned char)*p])
putchar(*p);
else
putchar(' ');
while (i++ <= COLUMNS)
putchar(' ');
putchar('|');
putchar('\n');
/*
* 12 rows of potential holes; output a ']', which looks kind of
* like a hole, if the appropriate bit is set in the holes[] table.
* The original bcd output a '[', a backspace, five control A's,
* and then a ']'. This seems a little excessive.
*/
for (row = 0; row <= 11; ++row) {
putchar('|');
for (i = 0, p = str; *p; i++, p++) {
if (bit(holes[(unsigned char)*p], 11 - row))
putchar(']');
else
putchar(rowchars[row]);
}
while (i++ < COLUMNS)
putchar(rowchars[row]);
putchar('|');
putchar('\n');
}
/* bottom of card */
putchar('|');
for (i = 1; i <= COLUMNS; i++)
putchar('_');
putchar('|');
putchar('\n');
}