xref: /freebsd/usr.sbin/lpr/lptest/lptest.c (revision cd0d51baaa4509a1db83251a601d34404d20c990)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1983, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
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  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #ifndef lint
34 static const char copyright[] =
35 "@(#) Copyright (c) 1983, 1993\n\
36 	The Regents of the University of California.  All rights reserved.\n";
37 #endif /* not lint */
38 
39 #if 0
40 #ifndef lint
41 static char sccsid[] = "@(#)lptest.c	8.1 (Berkeley) 6/6/93";
42 #endif /* not lint */
43 #endif
44 
45 #include "lp.cdefs.h"		/* A cross-platform version of <sys/cdefs.h> */
46 __FBSDID("$FreeBSD$");
47 
48 #include <stdlib.h>
49 #include <stdio.h>
50 #include <err.h>
51 
52 /*
53  * lptest -- line printer test program (and other devices).
54  */
55 int
56 main(int argc, char **argv)
57 {
58 	int len, count;
59 	register int i, j, fc, nc;
60 	char outbuf[BUFSIZ];
61 
62 	setbuf(stdout, outbuf);
63 	if (argc >= 2)
64 		len = atoi(argv[1]);
65 	else
66 		len = 79;
67 	if (argc >= 3)
68 		count = atoi(argv[2]);
69 	else
70 		count = 200;
71 	fc = ' ';
72 	for (i = 0; i < count; i++) {
73 		if (++fc == 0177)
74 			fc = ' ';
75 		nc = fc;
76 		for (j = 0; j < len; j++) {
77 			if (putchar(nc) == EOF)
78 				err(1, "Write error");
79 			if (++nc == 0177)
80 				nc = ' ';
81 		}
82 		if (putchar('\n') == EOF)
83 			err(1, "Write error");
84 	}
85 	(void) fflush(stdout);
86 	exit(0);
87 }
88