kc3-lang/gnulib/tests/test-fchownat.c

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• Hash : 32a72f45
  Author :
  Date : 2023-01-01T01:14:21
  

  maint: run 'make update-copyright'
  

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• tests/test-fchownat.c

• /* Tests of fchownat.
     Copyright (C) 2009-2023 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  /* Written by Eric Blake <ebb9@byu.net>, 2009.  */
  
  #include <config.h>
  
  #include <unistd.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (fchownat, int, (int, char const *, uid_t, gid_t, int));
  
  #include <fcntl.h>
  #include <errno.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <sys/stat.h>
  
  #include "mgetgroups.h"
  #include "openat.h"
  #include "stat-time.h"
  #include "ignore-value.h"
  #include "macros.h"
  
  #ifndef BASE
  # define BASE "test-fchownat.t"
  #endif
  
  #include "test-chown.h"
  #include "test-lchown.h"
  
  static int dfd = AT_FDCWD;
  
  /* Wrapper around fchownat to test chown behavior.  */
  static int
  do_chown (char const *name, uid_t user, gid_t group)
  {
  #ifdef TEST_CHOWNAT
    return chownat (dfd, name, user, group);
  #else
    return fchownat (dfd, name, user, group, 0);
  #endif
  }
  
  /* Wrapper around fchownat to test lchown behavior.  */
  static int
  do_lchown (char const *name, uid_t user, gid_t group)
  {
  #ifdef TEST_CHOWNAT
    return lchownat (dfd, name, user, group);
  #else
    return fchownat (dfd, name, user, group, AT_SYMLINK_NOFOLLOW);
  #endif
  }
  
  int
  main (_GL_UNUSED int argc, char *argv[])
  {
    int result1; /* Skip because of no chown/symlink support.  */
    int result2; /* Skip because of no lchown support.  */
  
    /* Clean up any trash from prior testsuite runs.  */
    ignore_value (system ("rm -rf " BASE "*"));
  
    /* Test behaviour for invalid file descriptors.  */
    {
      errno = 0;
      ASSERT (fchownat (-1, "foo", getuid (), getgid (), 0) == -1);
      ASSERT (errno == EBADF);
    }
    {
      close (99);
      errno = 0;
      ASSERT (fchownat (99, "foo", getuid (), getgid (), 0) == -1);
      ASSERT (errno == EBADF);
    }
  
    /* Basic tests.  */
    result1 = test_chown (do_chown, true);
    result2 = test_lchown (do_lchown, result1 == 0);
    dfd = open (".", O_RDONLY);
    ASSERT (0 <= dfd);
    ASSERT (test_chown (do_chown, false) == result1);
    ASSERT (test_lchown (do_lchown, false) == result2);
    /* We expect 0/0, 0/77, or 77/77, but not 77/0.  */
    ASSERT (result1 <= result2);
    ASSERT (close (dfd) == 0);
  
    /* FIXME - add additional tests of dfd not at current directory.  */
    return result1 | result2;
  }
  

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