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. */ |
28 | typedef int (*public_function) (const char *, char *, int *); |
29 | |
30 | /* Type of the lookup function for the secret key. */ |
31 | typedef int (*secret_function) (const char *, char *, const char *, int *); |
32 | |
33 | /* The lookup function for the first entry of this service. */ |
34 | extern int __nss_publickey_lookup (service_user **nip, const char *name, |
35 | void **fctp) internal_function; |
36 | |
37 | |
38 | int |
39 | getpublickey (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 | } |
78 | libc_hidden_nolink_sunrpc (getpublickey, GLIBC_2_0) |
79 | |
80 | |
81 | int |
82 | getsecretkey (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 | } |
121 | libc_hidden_nolink_sunrpc (getsecretkey, GLIBC_2_0) |
122 | |