kc3-lang/gnulib/tests/test-stat.h

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• Hash : d80aff0a
  Author :
  Date : 2011-06-20T15:12:10
  

  test-stat: don't allocate PATH_MAX bytes
  
  POSIX allows systems (like Hurd) that don't define PATH_MAX, or
  which define it larger than a reasonable stack allocation should
  be.  The test originally used stack allocation to avoid portability
  problems with getcwd, but the getcwd-lgpl module solves those.
  
  * tests/test-stat.h (test_stat_func): Don't stack-allocate a
  PATH_MAX-sized buffer.
  * modules/openat-tests (Depends-on): Add getcwd-lgpl, drop pathmax.
  * modules/stat-tests (Depends-on): Likewise.
  * tests/test-fstatat.c (includes): Drop pathmax.h.
  * tests/test-stat.c (includes): Likewise.
  Reported by Bruno Haible.
  
  Signed-off-by: Eric Blake <eblake@redhat.com>
  

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• tests/test-stat.h

• /* Tests of stat.
     Copyright (C) 2009-2011 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 <http://www.gnu.org/licenses/>.  */
  
  /* Written by Eric Blake <ebb9@byu.net>, 2009.  */
  
  /* This file is designed to test both stat(n,buf) and
     fstatat(AT_FDCWD,n,buf,0).  FUNC is the function to test.  Assumes
     that BASE and ASSERT are already defined, and that appropriate
     headers are already included.  If PRINT, warn before skipping
     symlink tests with status 77.  */
  
  static int
  test_stat_func (int (*func) (char const *, struct stat *), bool print)
  {
    struct stat st1;
    struct stat st2;
    char *cwd = getcwd (NULL, 0);
  
    ASSERT (cwd);
    ASSERT (func (".", &st1) == 0);
    ASSERT (func ("./", &st2) == 0);
    ASSERT (SAME_INODE (st1, st2));
    ASSERT (func (cwd, &st2) == 0);
    ASSERT (SAME_INODE (st1, st2));
    ASSERT (func ("/", &st1) == 0);
    ASSERT (func ("///", &st2) == 0);
    ASSERT (SAME_INODE (st1, st2));
  
    errno = 0;
    ASSERT (func ("", &st1) == -1);
    ASSERT (errno == ENOENT);
    errno = 0;
    ASSERT (func ("nosuch", &st1) == -1);
    ASSERT (errno == ENOENT);
    errno = 0;
    ASSERT (func ("nosuch/", &st1) == -1);
    ASSERT (errno == ENOENT);
  
    ASSERT (close (creat (BASE "file", 0600)) == 0);
    ASSERT (func (BASE "file", &st1) == 0);
    errno = 0;
    ASSERT (func (BASE "file/", &st1) == -1);
    ASSERT (errno == ENOTDIR);
  
    /* Now for some symlink tests, where supported.  We set up:
       link1 -> directory
       link2 -> file
       link3 -> dangling
       link4 -> loop
       then test behavior with trailing slash.
    */
    if (symlink (".", BASE "link1") != 0)
      {
        ASSERT (unlink (BASE "file") == 0);
        if (print)
          fputs ("skipping test: symlinks not supported on this file system\n",
                 stderr);
        return 77;
      }
    ASSERT (symlink (BASE "file", BASE "link2") == 0);
    ASSERT (symlink (BASE "nosuch", BASE "link3") == 0);
    ASSERT (symlink (BASE "link4", BASE "link4") == 0);
  
    ASSERT (func (BASE "link1/", &st1) == 0);
    ASSERT (S_ISDIR (st1.st_mode));
  
    errno = 0;
    ASSERT (func (BASE "link2/", &st1) == -1);
    ASSERT (errno == ENOTDIR);
  
    errno = 0;
    ASSERT (func (BASE "link3/", &st1) == -1);
    ASSERT (errno == ENOENT);
  
    errno = 0;
    ASSERT (func (BASE "link4/", &st1) == -1);
    ASSERT (errno == ELOOP);
  
    /* Cleanup.  */
    ASSERT (unlink (BASE "file") == 0);
    ASSERT (unlink (BASE "link1") == 0);
    ASSERT (unlink (BASE "link2") == 0);
    ASSERT (unlink (BASE "link3") == 0);
    ASSERT (unlink (BASE "link4") == 0);
  
    return 0;
  }
  

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