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 #include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */ 34 #include <stdlib.h> 35 #include <stdio.h> 36 #include <err.h> 37 38 /* 39 * lptest -- line printer test program (and other devices). 40 */ 41 int 42 main(int argc, char **argv) 43 { 44 int len, count; 45 register int i, j, fc, nc; 46 char outbuf[BUFSIZ]; 47 48 setbuf(stdout, outbuf); 49 if (argc >= 2) 50 len = atoi(argv[1]); 51 else 52 len = 79; 53 if (argc >= 3) 54 count = atoi(argv[2]); 55 else 56 count = 200; 57 fc = ' '; 58 for (i = 0; i < count; i++) { 59 if (++fc == 0177) 60 fc = ' '; 61 nc = fc; 62 for (j = 0; j < len; j++) { 63 if (putchar(nc) == EOF) 64 err(1, "Write error"); 65 if (++nc == 0177) 66 nc = ' '; 67 } 68 if (putchar('\n') == EOF) 69 err(1, "Write error"); 70 } 71 (void) fflush(stdout); 72 exit(0); 73 } 74