1  /* Forwarders for deprecated libresolv functions which are implemented in libc.
       2     Copyright (C) 2021-2023 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  /* Some functions are used by the stub resolver implementation
      20     internally and thus have to be located in libc.  They have been
      21     historially exported for application use as well.  However, the
      22     stub resolver dependency on those functions is not intrinsic to
      23     what the stub resolver does, and it is possible that a future
      24     version of the stub resolver will not need them anymore.  The
      25     public symbols for these functions remain in libresolv, and are not
      26     moved to libc, to avoid adding new symbol versions for legacy
      27     functions.  */
      28  
      29  #include <arpa/nameser.h>
      30  #include <resolv.h>
      31  
      32  int
      33  ns_makecanon (const char *src, char *dst, size_t dstsize)
      34  {
      35    return __libc_ns_makecanon (src, dst, dstsize);
      36  }
      37  
      38  int
      39  ns_samename (const char *a, const char *b)
      40  {
      41    return __libc_ns_samename (a, b);
      42  }
      43  
      44  int
      45  res_nameinquery (const char *name, int type, int class,
      46                   const unsigned char *buf, const unsigned char *eom)
      47  {
      48    return __libc_res_nameinquery (name, type, class, buf, eom);
      49  }
      50  
      51  int
      52  res_queriesmatch (const unsigned char *buf1, const unsigned char *eom1,
      53                    const unsigned char *buf2, const unsigned char *eom2)
      54  {
      55    return __libc_res_queriesmatch (buf1, eom1, buf2, eom2);
      56  }