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 * $FreeBSD: src/usr.bin/hesinfo/hesinfo.c,v 1.7 2002/09/04 23:29:01 dwmalone Exp $ 18 */ 19 20 /* This file is a simple driver for the Hesiod library. */ 21 22 #include <err.h> 23 #include <errno.h> 24 #include <hesiod.h> 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 #include <unistd.h> 29 30 int 31 main(int argc, char **argv) 32 { 33 char **list, **p, *bindname, *name, *type; 34 int lflag = 0, errflg = 0, bflag = 0, c; 35 void *context; 36 37 while ((c = getopt(argc, argv, "lb")) != -1) { 38 switch (c) { 39 case 'l': 40 lflag = 1; 41 break; 42 case 'b': 43 bflag = 1; 44 break; 45 default: 46 errflg++; 47 break; 48 } 49 } 50 if (argc - optind != 2 || errflg) { 51 fprintf(stderr, "usage: hesinfo [-bl] name type\n"); 52 fprintf(stderr, "\t-l selects long format\n"); 53 fprintf(stderr, "\t-b also does hes_to_bind conversion\n"); 54 exit(2); 55 } 56 name = argv[optind]; 57 type = argv[optind + 1]; 58 59 if (hesiod_init(&context) < 0) { 60 if (errno == ENOEXEC) 61 warnx( 62 "hesiod_init: Invalid Hesiod configuration file."); 63 else 64 warn("hesiod_init"); 65 } 66 /* Display bind name if requested. */ 67 if (bflag) { 68 if (lflag) 69 printf("hes_to_bind(%s, %s) expands to\n", name, type); 70 bindname = hesiod_to_bind(context, name, type); 71 if (!bindname) { 72 if (lflag) 73 printf("nothing\n"); 74 if (errno == ENOENT) 75 warnx("hesiod_to_bind: Unknown rhs-extension."); 76 else 77 warn("hesiod_to_bind"); 78 exit(1); 79 } 80 printf("%s\n", bindname); 81 free(bindname); 82 if (lflag) 83 printf("which "); 84 } 85 if (lflag) 86 printf("resolves to\n"); 87 88 /* Do the hesiod resolve and check for errors. */ 89 list = hesiod_resolve(context, name, type); 90 if (!list) { 91 if (lflag) 92 printf("nothing\n"); 93 if (errno == ENOENT) 94 warnx("hesiod_resolve: Hesiod name not found."); 95 else 96 warn("hesiod_resolve"); 97 exit(1); 98 } 99 /* Display the results. */ 100 for (p = list; *p; p++) 101 printf("%s\n", *p); 102 103 hesiod_free_list(context, list); 104 hesiod_end(context); 105 exit(0); 106 } 107