1 /* $OpenBSD: util.c,v 1.1 2018/12/17 19:26:25 anton Exp $ */ 2 3 /* 4 * Copyright (c) 2018 Anton Lindqvist <anton@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <err.h> 20 #include <fcntl.h> 21 #include <stdio.h> 22 #include <stdlib.h> 23 #include <string.h> 24 #include <unistd.h> 25 26 #include "util.h" 27 28 static __dead void usage(void); 29 30 int 31 dotest(int argc, char *argv[], const struct test *tests) 32 { 33 const struct test *test; 34 const char *dev = NULL; 35 int c, fd; 36 37 while ((c = getopt(argc, argv, "d:")) != -1) 38 switch (c) { 39 case 'd': 40 dev = optarg; 41 break; 42 default: 43 usage(); 44 } 45 argc -= optind; 46 argv += optind; 47 if (dev == NULL || argc != 1) 48 usage(); 49 50 fd = open(dev, O_RDWR); 51 if (fd == -1) 52 err(1, "open: %s", dev); 53 54 for (test = tests; test->t_name != NULL; test++) { 55 if (strcmp(argv[0], test->t_name) == 0) 56 break; 57 } 58 if (test->t_name == NULL) 59 errx(1, "%s: no such test", argv[0]); 60 61 return test->t_func(fd); 62 } 63 64 static __dead void 65 usage(void) 66 { 67 fprintf(stderr, "usage: %s -d device test\n", getprogname()); 68 exit(1); 69 } 70