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

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• Hash : 24208770
  Author :
  Date : 2009-11-09T10:44:08
  

  unlink, remove: detect FreeBSD bug
  
  unlink("link-to-file/") mistakenly removed "file".
  
  * m4/unlink.m4 (gl_FUNC_UNLINK): Also detect FreeBSD bug with
  slash on symlink.
  * doc/posix-functions/unlink.texi (unlink): Document the bug.
  * doc/posix-functions/remove.texi (remove): Likewise.
  * tests/test-unlink.h (test_unlink): Enhance test.
  * tests/test-remove.c (main): Likewise.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• tests/test-remove.c

• /* Tests of remove.
     Copyright (C) 2009 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.  */
  
  #include <config.h>
  
  #include <stdio.h>
  
  #include <fcntl.h>
  #include <errno.h>
  #include <stdlib.h>
  #include <string.h>
  #include <sys/stat.h>
  #include <unistd.h>
  
  #define ASSERT(expr) \
    do                                                                         \
      {                                                                        \
        if (!(expr))                                                           \
  	{                                                                    \
  	  fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__);  \
  	  fflush (stderr);                                                   \
  	  abort ();                                                          \
  	}                                                                    \
      }                                                                        \
    while (0)
  
  #define BASE "test-remove.t"
  
  int
  main (void)
  {
    /* Remove any leftovers from a previous partial run.  */
    ASSERT (system ("rm -rf " BASE "*") == 0);
  
    /* Setup.  */
    ASSERT (mkdir (BASE "dir", 0700) == 0);
    ASSERT (close (creat (BASE "dir/file", 0600)) == 0);
  
    /* Basic error conditions.  */
    errno = 0;
    ASSERT (remove ("") == -1);
    ASSERT (errno == ENOENT);
    errno = 0;
    ASSERT (remove ("nosuch") == -1);
    ASSERT (errno == ENOENT);
    errno = 0;
    ASSERT (remove ("nosuch/") == -1);
    ASSERT (errno == ENOENT);
    errno = 0;
    ASSERT (remove (".") == -1);
    ASSERT (errno == EINVAL || errno == EBUSY);
    /* Resulting errno after ".." or "/" is too varied to test; it is
       reasonable to see any of EINVAL, EEXIST, ENOTEMPTY, EACCES.  */
    ASSERT (remove ("..") == -1);
    ASSERT (remove ("/") == -1);
    ASSERT (remove ("///") == -1);
    errno = 0;
    ASSERT (remove (BASE "dir/file/") == -1);
    ASSERT (errno == ENOTDIR);
  
    /* Non-empty directory.  */
    errno = 0;
    ASSERT (remove (BASE "dir") == -1);
    ASSERT (errno == EEXIST || errno == ENOTEMPTY);
  
    /* Non-directory.  */
    ASSERT (remove (BASE "dir/file") == 0);
  
    /* Empty directory.  */
    errno = 0;
    ASSERT (remove (BASE "dir/.//") == -1);
    ASSERT (errno == EINVAL || errno == EBUSY);
    ASSERT (remove (BASE "dir") == 0);
  
    /* Test symlink behavior.  Specifying trailing slash should remove
       referent directory, or cause ENOTDIR failure, but not touch
       symlink.  */
    if (symlink (BASE "dir", BASE "link") != 0)
      {
        fputs ("skipping test: symlinks not supported on this file system\n",
               stderr);
        return 77;
      }
    ASSERT (mkdir (BASE "dir", 0700) == 0);
    errno = 0;
    if (remove (BASE "link/") == 0)
      {
        struct stat st;
        errno = 0;
        ASSERT (stat (BASE "link", &st) == -1);
        ASSERT (errno == ENOENT);
      }
    else
      ASSERT (remove (BASE "dir") == 0);
    {
      struct stat st;
      ASSERT (lstat (BASE "link", &st) == 0);
      ASSERT (S_ISLNK (st.st_mode));
    }
    ASSERT (remove (BASE "link") == 0);
    /* Trailing slash on symlink to non-directory is an error.  */
    ASSERT (symlink (BASE "loop", BASE "loop") == 0);
    errno = 0;
    ASSERT (remove (BASE "loop/") == -1);
    ASSERT (errno == ELOOP || errno == ENOTDIR);
    ASSERT (remove (BASE "loop") == 0);
    ASSERT (close (creat (BASE "file", 0600)) == 0);
    ASSERT (symlink (BASE "file", BASE "link") == 0);
    errno = 0;
    ASSERT (remove (BASE "link/") == -1);
    ASSERT (errno == ENOTDIR);
    ASSERT (remove (BASE "link") == 0);
    ASSERT (remove (BASE "file") == 0);
  
    return 0;
  }
  

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