| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 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) |