xref: /freebsd/usr.sbin/lpr/lptest/lptest.c (revision 193d9e768ba63fcfb187cfd17f461f7d41345048)
1 /*
2  * Copyright (c) 1983, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. Neither the name of the University nor the names of its contributors
15  *    may be used to endorse or promote products derived from this software
16  *    without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #ifndef lint
32 static const char copyright[] =
33 "@(#) Copyright (c) 1983, 1993\n\
34 	The Regents of the University of California.  All rights reserved.\n";
35 #endif /* not lint */
36 
37 #if 0
38 #ifndef lint
39 static char sccsid[] = "@(#)lptest.c	8.1 (Berkeley) 6/6/93";
40 #endif /* not lint */
41 #endif
42 
43 #include "lp.cdefs.h"		/* A cross-platform version of <sys/cdefs.h> */
44 __FBSDID("$FreeBSD$");
45 
46 #include <stdlib.h>
47 #include <stdio.h>
48 #include <err.h>
49 
50 /*
51  * lptest -- line printer test program (and other devices).
52  */
53 int
54 main(int argc, char **argv)
55 {
56 	int len, count;
57 	register int i, j, fc, nc;
58 	char outbuf[BUFSIZ];
59 
60 	setbuf(stdout, outbuf);
61 	if (argc >= 2)
62 		len = atoi(argv[1]);
63 	else
64 		len = 79;
65 	if (argc >= 3)
66 		count = atoi(argv[2]);
67 	else
68 		count = 200;
69 	fc = ' ';
70 	for (i = 0; i < count; i++) {
71 		if (++fc == 0177)
72 			fc = ' ';
73 		nc = fc;
74 		for (j = 0; j < len; j++) {
75 			if (putchar(nc) == EOF)
76 				err(1, "Write error");
77 			if (++nc == 0177)
78 				nc = ' ';
79 		}
80 		if (putchar('\n') == EOF)
81 			err(1, "Write error");
82 	}
83 	(void) fflush(stdout);
84 	exit(0);
85 }
86