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 #ifndef lint 23 static const char rcsid[] = 24 "$FreeBSD$"; 25 #endif /* not lint */ 26 27 #include <err.h> 28 #include <errno.h> 29 #include <hesiod.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <string.h> 33 #include <unistd.h> 34 35 int main(int, char **); 36 37 int 38 main(argc, argv) 39 int argc; 40 char **argv; 41 { 42 char **list, **p, *bindname, *name, *type; 43 int lflag = 0, errflg = 0, bflag = 0, c; 44 void *context; 45 46 while ((c = getopt(argc, argv, "lb")) != -1) { 47 switch (c) { 48 case 'l': 49 lflag = 1; 50 break; 51 case 'b': 52 bflag = 1; 53 break; 54 default: 55 errflg++; 56 break; 57 } 58 } 59 if (argc - optind != 2 || errflg) { 60 fprintf(stderr, "usage: hesinfo [-bl] name type\n"); 61 fprintf(stderr, "\t-l selects long format\n"); 62 fprintf(stderr, "\t-b also does hes_to_bind conversion\n"); 63 exit(2); 64 } 65 name = argv[optind]; 66 type = argv[optind + 1]; 67 68 if (hesiod_init(&context) < 0) { 69 if (errno == ENOEXEC) 70 warnx( 71 "hesiod_init: Invalid Hesiod configuration file."); 72 else 73 warn("hesiod_init"); 74 } 75 /* Display bind name if requested. */ 76 if (bflag) { 77 if (lflag) 78 printf("hes_to_bind(%s, %s) expands to\n", name, type); 79 bindname = hesiod_to_bind(context, name, type); 80 if (!bindname) { 81 if (lflag) 82 printf("nothing\n"); 83 if (errno == ENOENT) 84 warnx("hesiod_to_bind: Unknown rhs-extension."); 85 else 86 warn("hesiod_to_bind"); 87 exit(1); 88 } 89 printf("%s\n", bindname); 90 free(bindname); 91 if (lflag) 92 printf("which "); 93 } 94 if (lflag) 95 printf("resolves to\n"); 96 97 /* Do the hesiod resolve and check for errors. */ 98 list = hesiod_resolve(context, name, type); 99 if (!list) { 100 if (lflag) 101 printf("nothing\n"); 102 if (errno == ENOENT) 103 warnx("hesiod_resolve: Hesiod name not found."); 104 else 105 warn("hesiod_resolve"); 106 exit(1); 107 } 108 /* Display the results. */ 109 for (p = list; *p; p++) 110 printf("%s\n", *p); 111 112 hesiod_free_list(context, list); 113 hesiod_end(context); 114 exit(0); 115 } 116