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