1 /* $NetBSD: hesinfo.c,v 1.1 1999/01/25 22:45:55 lukem Exp $ */ 2 3 /* Copyright 1988, 1996 by the Massachusetts Institute of Technology. 4 * 5 * Permission to use, copy, modify, and distribute this 6 * software and its documentation for any purpose and without 7 * fee is hereby granted, provided that the above copyright 8 * notice appear in all copies and that both that copyright 9 * notice and this permission notice appear in supporting 10 * documentation, and that the name of M.I.T. not be used in 11 * advertising or publicity pertaining to distribution of the 12 * software without specific, written prior permission. 13 * M.I.T. makes no representations about the suitability of 14 * this software for any purpose. It is provided "as is" 15 * without express or implied warranty. 16 */ 17 18 /* This file is a simple driver for the Hesiod library. */ 19 20 21 #include <sys/cdefs.h> 22 __FBSDID("$FreeBSD$"); 23 24 #include <err.h> 25 #include <errno.h> 26 #include <hesiod.h> 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <unistd.h> 31 32 int 33 main(int argc, char **argv) 34 { 35 char **list, **p, *bindname, *name, *type; 36 int lflag = 0, errflg = 0, bflag = 0, c; 37 void *context; 38 39 while ((c = getopt(argc, argv, "lb")) != -1) { 40 switch (c) { 41 case 'l': 42 lflag = 1; 43 break; 44 case 'b': 45 bflag = 1; 46 break; 47 default: 48 errflg++; 49 break; 50 } 51 } 52 if (argc - optind != 2 || errflg) { 53 fprintf(stderr, "usage: hesinfo [-bl] name type\n"); 54 fprintf(stderr, "\t-l selects long format\n"); 55 fprintf(stderr, "\t-b also does hes_to_bind conversion\n"); 56 exit(2); 57 } 58 name = argv[optind]; 59 type = argv[optind + 1]; 60 61 if (hesiod_init(&context) < 0) { 62 if (errno == ENOEXEC) 63 warnx( 64 "hesiod_init: Invalid Hesiod configuration file."); 65 else 66 warn("hesiod_init"); 67 } 68 /* Display bind name if requested. */ 69 if (bflag) { 70 if (lflag) 71 printf("hes_to_bind(%s, %s) expands to\n", name, type); 72 bindname = hesiod_to_bind(context, name, type); 73 if (!bindname) { 74 if (lflag) 75 printf("nothing\n"); 76 if (errno == ENOENT) 77 warnx("hesiod_to_bind: Unknown rhs-extension."); 78 else 79 warn("hesiod_to_bind"); 80 exit(1); 81 } 82 printf("%s\n", bindname); 83 free(bindname); 84 if (lflag) 85 printf("which "); 86 } 87 if (lflag) 88 printf("resolves to\n"); 89 90 /* Do the hesiod resolve and check for errors. */ 91 list = hesiod_resolve(context, name, type); 92 if (!list) { 93 if (lflag) 94 printf("nothing\n"); 95 if (errno == ENOENT) 96 warnx("hesiod_resolve: Hesiod name not found."); 97 else 98 warn("hesiod_resolve"); 99 exit(1); 100 } 101 /* Display the results. */ 102 for (p = list; *p; p++) 103 printf("%s\n", *p); 104 105 hesiod_free_list(context, list); 106 hesiod_end(context); 107 exit(0); 108 } 109