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
main(int argc,char ** argv)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