1 /* 2 * Copyright (c) 1994 Geoffrey M. Rehmet 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Geoffrey M. Rehmet 16 * 4. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * $FreeBSD: src/usr.sbin/lptcontrol/lptcontrol.c,v 1.9.2.2 2001/07/30 10:22:57 dd Exp $ 31 * $DragonFly: src/usr.sbin/lptcontrol/lptcontrol.c,v 1.4 2005/01/23 19:52:30 liamfoy Exp $ 32 */ 33 #include <sys/ioctl.h> 34 35 #include <err.h> 36 #include <fcntl.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <unistd.h> 40 41 #include <dev/misc/lpt/lptio.h> 42 43 #define DEFAULT_DEVICE "/dev/lpt0" 44 #define IRQ_INVALID -1 45 #define DO_POLL 0 46 #define USE_IRQ 1 47 #define USE_EXT_MODE 2 48 #define USE_STD_MODE 3 49 50 static void 51 usage(void) 52 { 53 fprintf(stderr, "usage: lptcontrol -i | -p | -s | -e [-d device]\n"); 54 exit(1); 55 } 56 57 int 58 main(int argc, char *argv[]) 59 { 60 int opt; 61 int fd; 62 int irq_status = IRQ_INVALID; 63 const char *device = DEFAULT_DEVICE; 64 65 while ((opt = getopt(argc, argv, "ipesd:")) != -1) { 66 switch (opt) { 67 case 'i': 68 irq_status = USE_IRQ; 69 break; 70 case 'p': 71 irq_status = DO_POLL; 72 break; 73 case 'e': 74 irq_status = USE_EXT_MODE; 75 break; 76 case 's': 77 irq_status = USE_STD_MODE; 78 break; 79 case 'd': 80 device = optarg; 81 break; 82 default: 83 usage(); 84 } 85 } 86 argc -= optind; 87 argv += optind; 88 89 if (argc == 1 || irq_status == IRQ_INVALID) 90 usage(); 91 92 if ((fd = open(device, O_WRONLY)) < 0) 93 err(1, "open failed: %s", device); 94 95 if (ioctl(fd, LPT_IRQ, &irq_status) < 0) 96 err(1, "ioctl failed"); 97 98 close(fd); 99 exit(0); 100 } 101