1 /* $NetBSD: hesinfo.c,v 1.5 2016/09/05 00:40:28 sevan 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 #if 0 24 static char rcsid[] = "#Id: hesinfo.c,v 1.8 1996/12/08 21:29:54 ghudson Exp #"; 25 #else 26 __RCSID("$NetBSD: hesinfo.c,v 1.5 2016/09/05 00:40:28 sevan Exp $"); 27 #endif 28 #endif /* not lint */ 29 30 #include <err.h> 31 #include <errno.h> 32 #include <hesiod.h> 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <string.h> 36 #include <unistd.h> 37 38 int 39 main(int argc, char **argv) 40 { 41 char **list, **p, *bindname, *name, *type; 42 int lflag = 0, errflg = 0, bflag = 0, c; 43 void *context; 44 45 while ((c = getopt(argc, argv, "lb")) != -1) { 46 switch (c) { 47 case 'l': 48 lflag = 1; 49 break; 50 case 'b': 51 bflag = 1; 52 break; 53 default: 54 errflg++; 55 break; 56 } 57 } 58 if (argc - optind != 2 || errflg) { 59 fprintf(stderr, "usage: %s [-bl] name type\n", getprogname()); 60 fprintf(stderr, "\t-l selects long format\n"); 61 fprintf(stderr, "\t-b also does hes_to_bind conversion\n"); 62 exit(2); 63 } 64 name = argv[optind]; 65 type = argv[optind + 1]; 66 67 if (hesiod_init(&context) < 0) { 68 if (errno == ENOEXEC) 69 warnx( 70 "hesiod_init: Invalid Hesiod configuration file."); 71 else 72 warn("hesiod_init"); 73 } 74 /* Display bind name if requested. */ 75 if (bflag) { 76 if (lflag) 77 printf("hes_to_bind(%s, %s) expands to\n", name, type); 78 bindname = hesiod_to_bind(context, name, type); 79 if (!bindname) { 80 if (lflag) 81 printf("nothing\n"); 82 if (errno == ENOENT) 83 warnx("hesiod_to_bind: Unknown rhs-extension."); 84 else 85 warn("hesiod_to_bind"); 86 exit(1); 87 } 88 printf("%s\n", bindname); 89 free(bindname); 90 if (lflag) 91 printf("which "); 92 } 93 if (lflag) 94 printf("resolves to\n"); 95 96 /* Do the hesiod resolve and check for errors. */ 97 list = hesiod_resolve(context, name, type); 98 if (!list) { 99 if (lflag) 100 printf("nothing\n"); 101 if (errno == ENOENT) 102 warnx("hesiod_resolve: Hesiod name not found."); 103 else 104 warn("hesiod_resolve"); 105 exit(1); 106 } 107 /* Display the results. */ 108 for (p = list; *p; p++) 109 printf("%s\n", *p); 110 111 hesiod_free_list(context, list); 112 hesiod_end(context); 113 exit(0); 114 } 115