hesinfo.c revision 87284 
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
23static const char rcsid[] =
24  "$FreeBSD: head/usr.bin/hesinfo/hesinfo.c 87284 2001-12-03 20:58:56Z dwmalone $";
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
35int	main __P((int, char **));
36extern char *__progname;
37
38int
39main(argc, argv)
40	int	argc;
41	char  **argv;
42{
43	char  **list, **p, *bindname, *name, *type;
44	int     lflag = 0, errflg = 0, bflag = 0, c;
45	void   *context;
46
47	while ((c = getopt(argc, argv, "lb")) != -1) {
48		switch (c) {
49		case 'l':
50			lflag = 1;
51			break;
52		case 'b':
53			bflag = 1;
54			break;
55		default:
56			errflg++;
57			break;
58		}
59	}
60	if (argc - optind != 2 || errflg) {
61		fprintf(stderr, "Usage: %s [-bl] name type\n", __progname);
62		fprintf(stderr, "\t-l selects long format\n");
63		fprintf(stderr, "\t-b also does hes_to_bind conversion\n");
64		exit(2);
65	}
66	name = argv[optind];
67	type = argv[optind + 1];
68
69	if (hesiod_init(&context) < 0) {
70		if (errno == ENOEXEC)
71			warnx(
72			    "hesiod_init: Invalid Hesiod configuration file.");
73		else
74			warn("hesiod_init");
75	}
76	/* Display bind name if requested. */
77	if (bflag) {
78		if (lflag)
79			printf("hes_to_bind(%s, %s) expands to\n", name, type);
80		bindname = hesiod_to_bind(context, name, type);
81		if (!bindname) {
82			if (lflag)
83				printf("nothing\n");
84			if (errno == ENOENT)
85				warnx("hesiod_to_bind: Unknown rhs-extension.");
86			else
87				warn("hesiod_to_bind");
88			exit(1);
89		}
90		printf("%s\n", bindname);
91		free(bindname);
92		if (lflag)
93			printf("which ");
94	}
95	if (lflag)
96		printf("resolves to\n");
97
98	/* Do the hesiod resolve and check for errors. */
99	list = hesiod_resolve(context, name, type);
100	if (!list) {
101		if (lflag)
102			printf("nothing\n");
103		if (errno == ENOENT)
104			warnx("hesiod_resolve: Hesiod name not found.");
105		else
106			warn("hesiod_resolve");
107		exit(1);
108	}
109	/* Display the results. */
110	for (p = list; *p; p++)
111		printf("%s\n", *p);
112
113	hesiod_free_list(context, list);
114	hesiod_end(context);
115	exit(0);
116}
117