1/* Get public or secret key from key server.
2 Copyright (C) 1996-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
19
20#include <errno.h>
21#include <rpc/netdb.h>
22#include <rpc/auth_des.h>
23
24#include "nsswitch.h"
25
26
27/* Type of the lookup function for the public key. */
28typedef int (*public_function) (const char *, char *, int *);
29
30/* Type of the lookup function for the secret key. */
31typedef int (*secret_function) (const char *, char *, const char *, int *);
32
33/* The lookup function for the first entry of this service. */
34extern int __nss_publickey_lookup (service_user **nip, const char *name,
35 void **fctp) internal_function;
36
37
38int
39getpublickey (const char *name, char *key)
40{
41 static service_user *startp;
42 static public_function start_fct;
43 service_user *nip;
44 union
45 {
46 public_function f;
47 void *ptr;
48 } fct;
49 enum nss_status status = NSS_STATUS_UNAVAIL;
50 int no_more;
51
52 if (startp == NULL)
53 {
54 no_more = __nss_publickey_lookup (&nip, "getpublickey", &fct.ptr);
55 if (no_more)
56 startp = (service_user *) -1;
57 else
58 {
59 startp = nip;
60 start_fct = fct.f;
61 }
62 }
63 else
64 {
65 fct.f = start_fct;
66 no_more = (nip = startp) == (service_user *) -1;
67 }
68
69 while (! no_more)
70 {
71 status = (*fct.f) (name, key, &errno);
72
73 no_more = __nss_next2 (&nip, "getpublickey", NULL, &fct.ptr, status, 0);
74 }
75
76 return status == NSS_STATUS_SUCCESS;
77}
78libc_hidden_nolink_sunrpc (getpublickey, GLIBC_2_0)
79
80
81int
82getsecretkey (const char *name, char *key, const char *passwd)
83{
84 static service_user *startp;
85 static secret_function start_fct;
86 service_user *nip;
87 union
88 {
89 secret_function f;
90 void *ptr;
91 } fct;
92 enum nss_status status = NSS_STATUS_UNAVAIL;
93 int no_more;
94
95 if (startp == NULL)
96 {
97 no_more = __nss_publickey_lookup (&nip, "getsecretkey", &fct.ptr);
98 if (no_more)
99 startp = (service_user *) -1;
100 else
101 {
102 startp = nip;
103 start_fct = fct.f;
104 }
105 }
106 else
107 {
108 fct.f = start_fct;
109 no_more = (nip = startp) == (service_user *) -1;
110 }
111
112 while (! no_more)
113 {
114 status = (*fct.f) (name, key, passwd, &errno);
115
116 no_more = __nss_next2 (&nip, "getsecretkey", NULL, &fct.ptr, status, 0);
117 }
118
119 return status == NSS_STATUS_SUCCESS;
120}
121libc_hidden_nolink_sunrpc (getsecretkey, GLIBC_2_0)
122