NetBSD/usr.bin/banner/banner.c

212 lines
5.3 KiB
C

/* $NetBSD: banner.c,v 1.11 2003/08/07 11:13:09 agc Exp $ */
/*
* Changes for banner(1)
*
* @(#)Copyright (c) 1995, Simon J. Gerraty.
*
* This is free software. It comes with NO WARRANTY.
* Permission to use, modify and distribute this source code
* is granted subject to the following conditions.
* 1/ that the above copyright notice and this notice
* are preserved in all copies and that due credit be given
* to the author.
* 2/ that any changes to this code are clearly commented
* as such so that the author does not get blamed for bugs
* other than his own.
*
* Please send copies of changes and bug-fixes to:
* sjg@zen.void.oz.au
*/
/*
* 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. 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) 1983, 1993\n\
The Regents of the University of California. All rights reserved.\n");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)printjob.c 8.2 (Berkeley) 4/16/94";
#else
__RCSID("$NetBSD: banner.c,v 1.11 2003/08/07 11:13:09 agc Exp $");
#endif
#endif /* not lint */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "banner.h"
static long PW = LINELEN;
/*
* <sjg> lpd makes chars out of the letter in question.
* the results are somewhat mixed. Sticking to '#' as
* banner(1) does is more consistent.
*/
static int ForeGnd = '#';
static int BackGnd = ' ';
static int Drop = 0; /* 3 for the LPD font */
static int dropit (int);
static void scan_out (int, char *, int);
static char *scnline (int, char *, int);
static void usage(void);
/* the char gen code below is lifted from lpd */
static char *
scnline(int key, char *p, int c)
{
int scnwidth;
if (ForeGnd)
c = ForeGnd;
for (scnwidth = WIDTH; --scnwidth;) {
key <<= 1;
*p++ = key & 0200 ? c : BackGnd;
}
return (p);
}
#define TRC(q) (((q)-' ')&0177)
static int
dropit(int c)
{
switch(c) {
case TRC('_'):
case TRC(';'):
case TRC(','):
case TRC('g'):
case TRC('j'):
case TRC('p'):
case TRC('q'):
case TRC('y'):
return (Drop);
default:
return (0);
}
}
static void
scan_out(int scfd, char *scsp, int dlm)
{
char *strp;
int nchrs, j;
char outbuf[LINELEN+1], *sp, c, cc;
int d, scnhgt;
for (scnhgt = 0; scnhgt++ < HEIGHT+Drop; ) {
strp = &outbuf[0];
if (BackGnd != ' ')
*strp++ = BackGnd;
sp = scsp;
for (nchrs = 0; *sp != dlm && *sp != '\0'; ) {
cc = *sp++;
if(cc < ' ' || ((int)cc) >= 0x7f)
cc = ' ';
d = dropit(c = TRC(cc));
if ((!d && scnhgt > HEIGHT) || (scnhgt <= Drop && d))
for (j = WIDTH; --j;)
*strp++ = BackGnd;
else if (Drop == 0)
strp = scnline(
scnkey_def[(int)c][scnhgt-1-d], strp, cc);
else
strp = scnline(
scnkey_lpd[(int)c][scnhgt-1-d], strp, cc);
if (nchrs++ >= PW/(WIDTH+1)-1)
break;
*strp++ = BackGnd;
}
if (BackGnd != ' ')
*strp++ = BackGnd;
else {
while (*--strp == ' ' && strp >= outbuf)
;
strp++;
}
*strp++ = '\n';
(void) write(scfd, outbuf, strp-outbuf);
}
}
/*
* for each word, print up to 10 chars in big letters.
*/
int
main(int argc, char **argv)
{
char word[10+1]; /* strings limited to 10 chars */
int c;
while ((c = getopt(argc, argv, "b:f:l")) != -1) {
switch (c) {
case 'f':
if (*optarg == '-')
ForeGnd = 0;
else
ForeGnd = *optarg;
break;
case 'b':
BackGnd = *optarg;
break;
case 'l':
Drop = 3; /* for LPD font */
break;
default:
usage();
}
}
for (; optind < argc; ++optind) {
(void)strlcpy(word, argv[optind], sizeof (word));
scan_out(STDOUT_FILENO, word, '\0');
}
exit(0);
}
void
usage(void)
{
fprintf(stderr, "usage: %s [-f fgchar] [-b bgchar] [-l] message...\n",
getprogname());
exit(1);
}