1  /* Implement chmod on platforms where it does not work correctly.
       2  
       3     Copyright 2022-2023 Free Software Foundation, Inc.
       4  
       5     This program is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation, either version 3 of the License, or
       8     (at your option) any later version.
       9  
      10     This program is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU General Public License for more details.
      14  
      15     You should have received a copy of the GNU General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <config.h>
      19  
      20  /* Specification.  */
      21  #include <sys/stat.h>
      22  
      23  #include <errno.h>
      24  #include <string.h>
      25  
      26  int
      27  rpl_chmod (const char *filename, mode_t mode)
      28  #undef chmod
      29  #if defined _WIN32 && !defined __CYGWIN__
      30  # define chmod _chmod
      31  #endif
      32  {
      33    size_t len = strlen (filename);
      34    if (len > 0 && filename[len - 1] == '/')
      35      {
      36        struct stat st;
      37        if (lstat (filename, &st) < 0)
      38          return -1;
      39        if (!S_ISDIR (st.st_mode))
      40          {
      41            errno = ENOTDIR;
      42            return -1;
      43          }
      44      }
      45  
      46    return chmod (filename, mode);
      47  }