1  /* Replacement <selinux/label.h> for platforms that lack it.
       2     Copyright 2020-2022 Free Software Foundation, Inc.
       3  
       4     This file is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU Lesser General Public License as
       6     published by the Free Software Foundation; either version 2.1 of the
       7     License, or (at your option) any later version.
       8  
       9     This file is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12     GNU Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public License
      15     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      16  
      17  /* Written by Paul Eggert.  */
      18  
      19  #ifndef SELINUX_LABEL_H
      20  
      21  #define SELINUX_LABEL_H
      22  
      23  #include <selinux/selinux.h>
      24  #include <errno.h>
      25  
      26  #ifndef _GL_INLINE_HEADER_BEGIN
      27   #error "Please include config.h first."
      28  #endif
      29  _GL_INLINE_HEADER_BEGIN
      30  #ifndef SE_LABEL_INLINE
      31  # define SE_LABEL_INLINE _GL_INLINE
      32  #endif
      33  
      34  /* _GL_ATTRIBUTE_MAYBE_UNUSED declares that it is not a programming mistake if
      35     the entity is not used.  The compiler should not warn if the entity is not
      36     used.  */
      37  #ifndef _GL_ATTRIBUTE_MAYBE_UNUSED
      38  # if 0 /* no GCC or clang version supports this yet */
      39  #  define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]]
      40  # elif defined __GNUC__ || defined __clang__
      41  #  define _GL_ATTRIBUTE_MAYBE_UNUSED __attribute__ ((__unused__))
      42  # else
      43  #  define _GL_ATTRIBUTE_MAYBE_UNUSED
      44  # endif
      45  #endif
      46  
      47  #define SELABEL_CTX_FILE 0
      48  
      49  struct selabel_handle;
      50  
      51  SE_LABEL_INLINE int
      52  selabel_lookup (_GL_ATTRIBUTE_MAYBE_UNUSED struct selabel_handle *hnd,
      53                  _GL_ATTRIBUTE_MAYBE_UNUSED char **context,
      54                  _GL_ATTRIBUTE_MAYBE_UNUSED char const *key,
      55                  _GL_ATTRIBUTE_MAYBE_UNUSED int type)
      56  { errno = ENOTSUP; return -1; }
      57  
      58  SE_LABEL_INLINE struct selabel_handle *
      59  selabel_open (_GL_ATTRIBUTE_MAYBE_UNUSED int backend,
      60                _GL_ATTRIBUTE_MAYBE_UNUSED struct selinux_opt *options,
      61                _GL_ATTRIBUTE_MAYBE_UNUSED unsigned nopt)
      62  { errno = ENOTSUP; return 0; }
      63  
      64  SE_LABEL_INLINE void
      65  selabel_close (_GL_ATTRIBUTE_MAYBE_UNUSED struct selabel_handle *hnd)
      66  { errno = ENOTSUP; }
      67  
      68  _GL_INLINE_HEADER_END
      69  
      70  #endif