1 /* Compatibility stubs of accidentally exported __nss_*_lookup functions.
2 Copyright (C) 2017-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <nsswitch.h>
20
21 #include <shlib-compat.h>
22 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_27)
23
24 # include <errno.h>
25
26 /* On i386, the function calling convention changed from the standard
27 ABI calling convention to three register parameters in glibc 2.8.
28 The following error-returning stub happens to be compatible with
29 glibc 2.7 and earlier and glibc 2.8 and later, even on i386. */
30 int
31 attribute_compat_text_section
__nss_passwd_lookup(nss_action_list * ni,const char * fct_name,void ** fctp)32 __nss_passwd_lookup (nss_action_list *ni, const char *fct_name, void **fctp)
33 {
34 __set_errno (ENOSYS);
35 return -1;
36 }
37 compat_symbol (libc, __nss_passwd_lookup, __nss_passwd_lookup, GLIBC_2_0);
38 strong_alias (__nss_passwd_lookup, __nss_group_lookup)
39 compat_symbol (libc, __nss_group_lookup, __nss_group_lookup, GLIBC_2_0);
40 strong_alias (__nss_passwd_lookup, __nss_hosts_lookup)
41 compat_symbol (libc, __nss_hosts_lookup, __nss_hosts_lookup, GLIBC_2_0);
42
43 #endif /* SHLIB_COMPAT */
44
45 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_30)
46
47 /* These functions were exported under a non-GLIBC_PRIVATE version,
48 even though it is not usable externally due to the service_user
49 (now nss_action_list) type dependency. */
50
51 int
52 attribute_compat_text_section
__nss_next(nss_action_list * ni,const char * fct_name,void ** fctp,int status,int all_values)53 __nss_next (nss_action_list *ni, const char *fct_name, void **fctp, int status,
54 int all_values)
55 {
56 return -1;
57 }
58 compat_symbol (libc, __nss_next, __nss_next, GLIBC_2_0);
59
60 int
61 attribute_compat_text_section
__nss_database_lookup(const char * database,const char * alternate_name,const char * defconfig,nss_action_list * ni)62 __nss_database_lookup (const char *database, const char *alternate_name,
63 const char *defconfig, nss_action_list *ni)
64 {
65 *ni = NULL;
66 return -1;
67 }
68 compat_symbol (libc, __nss_database_lookup, __nss_database_lookup, GLIBC_2_0);
69
70 #endif /* SHLIB_COMPAT */
71