nss/compat-lookup.c

   1 /* Compatibility stubs of accidentally exported __nss_*_lookup functions.
   2    Copyright (C) 2017 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <shlib-compat.h>
  20 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_27)
  21
  22 # include <errno.h>
  23 # include <nsswitch.h>
  24
  25 /* On i386, the function calling convention changed from the standard
  26    ABI calling convention to three register parameters in glibc 2.8.
  27    The following error-returning stub happens to be compatible with
  28    glibc 2.7 and earlier and glibc 2.8 and later, even on i386.  */
  29 int
  30 attribute_compat_text_section
  31 __nss_passwd_lookup (service_user **ni, const char *fct_name, void **fctp)
  32 {
  33   __set_errno (ENOSYS);
  34   return -1;
  35 }
  36 compat_symbol (libc, __nss_passwd_lookup, __nss_passwd_lookup, GLIBC_2_0);
  37 strong_alias (__nss_passwd_lookup, __nss_group_lookup)
  38 compat_symbol (libc, __nss_group_lookup, __nss_group_lookup, GLIBC_2_0);
  39 strong_alias (__nss_passwd_lookup, __nss_hosts_lookup)
  40 compat_symbol (libc, __nss_hosts_lookup, __nss_hosts_lookup, GLIBC_2_0);
  41
  42 #endif /* SHLIB_COMPAT */