1 | /* Get public or secret key from key server. |
2 | Copyright (C) 1996-2018 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 | #include <shlib-compat.h> |
24 | |
25 | #include "nsswitch.h" |
26 | |
27 | |
28 | /* Type of the lookup function for the public key. */ |
29 | typedef int (*public_function) (const char *, char *, int *); |
30 | |
31 | /* Type of the lookup function for the secret key. */ |
32 | typedef int (*secret_function) (const char *, char *, const char *, int *); |
33 | |
34 | int |
35 | getpublickey (const char *name, char *key) |
36 | { |
37 | static service_user *startp; |
38 | static public_function start_fct; |
39 | service_user *nip; |
40 | union |
41 | { |
42 | public_function f; |
43 | void *ptr; |
44 | } fct; |
45 | enum nss_status status = NSS_STATUS_UNAVAIL; |
46 | int no_more; |
47 | |
48 | if (startp == NULL) |
49 | { |
50 | no_more = __nss_publickey_lookup2 (&nip, "getpublickey" , NULL, &fct.ptr); |
51 | if (no_more) |
52 | startp = (service_user *) -1; |
53 | else |
54 | { |
55 | startp = nip; |
56 | start_fct = fct.f; |
57 | } |
58 | } |
59 | else |
60 | { |
61 | fct.f = start_fct; |
62 | no_more = (nip = startp) == (service_user *) -1; |
63 | } |
64 | |
65 | while (! no_more) |
66 | { |
67 | status = (*fct.f) (name, key, &errno); |
68 | |
69 | no_more = __nss_next2 (&nip, "getpublickey" , NULL, &fct.ptr, status, 0); |
70 | } |
71 | |
72 | return status == NSS_STATUS_SUCCESS; |
73 | } |
74 | libc_hidden_nolink_sunrpc (getpublickey, GLIBC_2_0) |
75 | |
76 | |
77 | int |
78 | getsecretkey (const char *name, char *key, const char *passwd) |
79 | { |
80 | static service_user *startp; |
81 | static secret_function start_fct; |
82 | service_user *nip; |
83 | union |
84 | { |
85 | secret_function f; |
86 | void *ptr; |
87 | } fct; |
88 | enum nss_status status = NSS_STATUS_UNAVAIL; |
89 | int no_more; |
90 | |
91 | if (startp == NULL) |
92 | { |
93 | no_more = __nss_publickey_lookup2 (&nip, "getsecretkey" , NULL, &fct.ptr); |
94 | if (no_more) |
95 | startp = (service_user *) -1; |
96 | else |
97 | { |
98 | startp = nip; |
99 | start_fct = fct.f; |
100 | } |
101 | } |
102 | else |
103 | { |
104 | fct.f = start_fct; |
105 | no_more = (nip = startp) == (service_user *) -1; |
106 | } |
107 | |
108 | while (! no_more) |
109 | { |
110 | status = (*fct.f) (name, key, passwd, &errno); |
111 | |
112 | no_more = __nss_next2 (&nip, "getsecretkey" , NULL, &fct.ptr, status, 0); |
113 | } |
114 | |
115 | return status == NSS_STATUS_SUCCESS; |
116 | } |
117 | libc_hidden_nolink_sunrpc (getsecretkey, GLIBC_2_0) |
118 | |