1 /* $NetBSD: hesinfo.c,v 1.3 2004/01/05 23:23:34 jmmv 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 1.3 2004/01/05 23:23:34 jmmv 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 main __P((int, char **)); 39 40 int 41 main(argc, argv) 42 int argc; 43 char **argv; 44 { 45 char **list, **p, *bindname, *name, *type; 46 int lflag = 0, errflg = 0, bflag = 0, c; 47 void *context; 48 49 while ((c = getopt(argc, argv, "lb")) != -1) { 50 switch (c) { 51 case 'l': 52 lflag = 1; 53 break; 54 case 'b': 55 bflag = 1; 56 break; 57 default: 58 errflg++; 59 break; 60 } 61 } 62 if (argc - optind != 2 || errflg) { 63 fprintf(stderr, "usage: %s [-bl] name type\n", getprogname()); 64 fprintf(stderr, "\t-l selects long format\n"); 65 fprintf(stderr, "\t-b also does hes_to_bind conversion\n"); 66 exit(2); 67 } 68 name = argv[optind]; 69 type = argv[optind + 1]; 70 71 if (hesiod_init(&context) < 0) { 72 if (errno == ENOEXEC) 73 warnx( 74 "hesiod_init: Invalid Hesiod configuration file."); 75 else 76 warn("hesiod_init"); 77 } 78 /* Display bind name if requested. */ 79 if (bflag) { 80 if (lflag) 81 printf("hes_to_bind(%s, %s) expands to\n", name, type); 82 bindname = hesiod_to_bind(context, name, type); 83 if (!bindname) { 84 if (lflag) 85 printf("nothing\n"); 86 if (errno == ENOENT) 87 warnx("hesiod_to_bind: Unknown rhs-extension."); 88 else 89 warn("hesiod_to_bind"); 90 exit(1); 91 } 92 printf("%s\n", bindname); 93 free(bindname); 94 if (lflag) 95 printf("which "); 96 } 97 if (lflag) 98 printf("resolves to\n"); 99 100 /* Do the hesiod resolve and check for errors. */ 101 list = hesiod_resolve(context, name, type); 102 if (!list) { 103 if (lflag) 104 printf("nothing\n"); 105 if (errno == ENOENT) 106 warnx("hesiod_resolve: Hesiod name not found."); 107 else 108 warn("hesiod_resolve"); 109 exit(1); 110 } 111 /* Display the results. */ 112 for (p = list; *p; p++) 113 printf("%s\n", *p); 114 115 hesiod_free_list(context, list); 116 hesiod_end(context); 117 exit(0); 118 } 119