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