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 main(int, char **); 33 34 int 35 main(argc, argv) 36 int argc; 37 char **argv; 38 { 39 char **list, **p, *bindname, *name, *type; 40 int lflag = 0, errflg = 0, bflag = 0, c; 41 void *context; 42 43 while ((c = getopt(argc, argv, "lb")) != -1) { 44 switch (c) { 45 case 'l': 46 lflag = 1; 47 break; 48 case 'b': 49 bflag = 1; 50 break; 51 default: 52 errflg++; 53 break; 54 } 55 } 56 if (argc - optind != 2 || errflg) { 57 fprintf(stderr, "usage: hesinfo [-bl] name type\n"); 58 fprintf(stderr, "\t-l selects long format\n"); 59 fprintf(stderr, "\t-b also does hes_to_bind conversion\n"); 60 exit(2); 61 } 62 name = argv[optind]; 63 type = argv[optind + 1]; 64 65 if (hesiod_init(&context) < 0) { 66 if (errno == ENOEXEC) 67 warnx( 68 "hesiod_init: Invalid Hesiod configuration file."); 69 else 70 warn("hesiod_init"); 71 } 72 /* Display bind name if requested. */ 73 if (bflag) { 74 if (lflag) 75 printf("hes_to_bind(%s, %s) expands to\n", name, type); 76 bindname = hesiod_to_bind(context, name, type); 77 if (!bindname) { 78 if (lflag) 79 printf("nothing\n"); 80 if (errno == ENOENT) 81 warnx("hesiod_to_bind: Unknown rhs-extension."); 82 else 83 warn("hesiod_to_bind"); 84 exit(1); 85 } 86 printf("%s\n", bindname); 87 free(bindname); 88 if (lflag) 89 printf("which "); 90 } 91 if (lflag) 92 printf("resolves to\n"); 93 94 /* Do the hesiod resolve and check for errors. */ 95 list = hesiod_resolve(context, name, type); 96 if (!list) { 97 if (lflag) 98 printf("nothing\n"); 99 if (errno == ENOENT) 100 warnx("hesiod_resolve: Hesiod name not found."); 101 else 102 warn("hesiod_resolve"); 103 exit(1); 104 } 105 /* Display the results. */ 106 for (p = list; *p; p++) 107 printf("%s\n", *p); 108 109 hesiod_free_list(context, list); 110 hesiod_end(context); 111 exit(0); 112 } 113