Branch data     Line data    Source code

       1                 :            : /* Tests of symlink.
       2                 :            :    Copyright (C) 2009-2012 Free Software Foundation, Inc.
       3                 :            : 
       4                 :            :    This program is free software: you can redistribute it and/or modify
       5                 :            :    it under the terms of the GNU General Public License as published by
       6                 :            :    the Free Software Foundation; either version 3 of the License, or
       7                 :            :    (at your option) any later version.
       8                 :            : 
       9                 :            :    This program 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 General Public License for more details.
      13                 :            : 
      14                 :            :    You should have received a copy of the GNU General Public License
      15                 :            :    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
      16                 :            : 
      17                 :            : /* Written by Eric Blake <ebb9@byu.net>, 2009.  */
      18                 :            : 
      19                 :            : /* This file is designed to test both symlink(a,b) and
      20                 :            :    symlinkat(a,AT_FDCWD,b).  FUNC is the function to test.  Assumes
      21                 :            :    that BASE and ASSERT are already defined, and that appropriate
      22                 :            :    headers are already included.  If PRINT, warn before skipping
      23                 :            :    symlink tests with status 77.  */
      24                 :            : 
      25                 :            : static int
      26                 :          1 : test_symlink (int (*func) (char const *, char const *), bool print)
      27                 :            : {
      28         [ -  + ]:          1 :   if (func ("nowhere", BASE "link1"))
      29                 :            :     {
      30         [ #  # ]:          0 :       if (print)
      31                 :          0 :         fputs ("skipping test: symlinks not supported on this file system\n",
      32                 :            :                stderr);
      33                 :          0 :       return 77;
      34                 :            :     }
      35                 :            : 
      36                 :            :   /* Some systems allow the creation of 0-length symlinks as a synonym
      37                 :            :      for "."; but most reject it.  */
      38                 :            :   {
      39                 :            :     int status;
      40                 :          1 :     errno = 0;
      41                 :          1 :     status = func ("", BASE "link2");
      42         [ +  - ]:          1 :     if (status == -1)
      43 [ -  + ][ #  # ]:          1 :       ASSERT (errno == ENOENT || errno == EINVAL);
      44                 :            :     else
      45                 :            :       {
      46         [ #  # ]:          0 :         ASSERT (status == 0);
      47         [ #  # ]:          0 :         ASSERT (unlink (BASE "link2") == 0);
      48                 :            :       }
      49                 :            :   }
      50                 :            : 
      51                 :            :   /* Sanity checks of failures.  */
      52                 :          1 :   errno = 0;
      53         [ -  + ]:          1 :   ASSERT (func ("nowhere", "") == -1);
      54         [ -  + ]:          1 :   ASSERT (errno == ENOENT);
      55                 :          1 :   errno = 0;
      56         [ -  + ]:          1 :   ASSERT (func ("nowhere", ".") == -1);
      57 [ -  + ][ #  # ]:          1 :   ASSERT (errno == EEXIST || errno == EINVAL);
      58                 :          1 :   errno = 0;
      59         [ -  + ]:          1 :   ASSERT (func ("somewhere", BASE "link1") == -1);
      60         [ -  + ]:          1 :   ASSERT (errno == EEXIST);
      61                 :          1 :   errno = 0;
      62         [ -  + ]:          1 :   ASSERT (func ("nowhere", BASE "link2/") == -1);
      63 [ +  - ][ -  + ]:          1 :   ASSERT (errno == ENOTDIR || errno == ENOENT);
      64         [ -  + ]:          1 :   ASSERT (mkdir (BASE "dir", 0700) == 0);
      65                 :          1 :   errno = 0;
      66         [ -  + ]:          1 :   ASSERT (func ("nowhere", BASE "dir") == -1);
      67         [ -  + ]:          1 :   ASSERT (errno == EEXIST);
      68                 :          1 :   errno = 0;
      69         [ -  + ]:          1 :   ASSERT (func ("nowhere", BASE "dir/") == -1);
      70 [ -  + ][ #  # ]:          1 :   ASSERT (errno == EEXIST || errno == EINVAL);
      71         [ -  + ]:          1 :   ASSERT (close (creat (BASE "file", 0600)) == 0);
      72                 :          1 :   errno = 0;
      73         [ -  + ]:          1 :   ASSERT (func ("nowhere", BASE "file") == -1);
      74         [ -  + ]:          1 :   ASSERT (errno == EEXIST);
      75                 :          1 :   errno = 0;
      76         [ -  + ]:          1 :   ASSERT (func ("nowhere", BASE "file/") == -1);
      77 [ -  + ][ #  # ]:          1 :   ASSERT (errno == EEXIST || errno == ENOTDIR || errno == ENOENT);
                 [ #  # ]
      78                 :            : 
      79                 :            :   /* Trailing slash must always be rejected.  */
      80         [ -  + ]:          1 :   ASSERT (unlink (BASE "link1") == 0);
      81         [ -  + ]:          1 :   ASSERT (func (BASE "link2", BASE "link1") == 0);
      82                 :          1 :   errno = 0;
      83         [ -  + ]:          1 :   ASSERT (func (BASE "nowhere", BASE "link1/") == -1);
      84 [ -  + ][ #  # ]:          1 :   ASSERT (errno == EEXIST || errno == ENOTDIR || errno == ENOENT);
                 [ #  # ]
      85                 :          1 :   errno = 0;
      86         [ -  + ]:          1 :   ASSERT (unlink (BASE "link2") == -1);
      87         [ -  + ]:          1 :   ASSERT (errno == ENOENT);
      88                 :            : 
      89                 :            :   /* Cleanup.  */
      90         [ -  + ]:          1 :   ASSERT (rmdir (BASE "dir") == 0);
      91         [ -  + ]:          1 :   ASSERT (unlink (BASE "file") == 0);
      92         [ -  + ]:          1 :   ASSERT (unlink (BASE "link1") == 0);
      93                 :            : 
      94                 :          1 :   return 0;
      95                 :            : }