1  /* ANSI C `remove' function to delete a file or directory.  POSIX.1 version.
       2     Copyright (C) 1995-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library 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 GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <errno.h>
      20  #include <stdio.h>
      21  #include <unistd.h>
      22  
      23  
      24  #ifndef IS_NO_DIRECTORY_ERROR
      25  # define IS_NO_DIRECTORY_ERROR errno != EPERM
      26  #endif
      27  
      28  
      29  int
      30  remove (const char *file)
      31  {
      32    /* First try to unlink since this is more frequently the necessary action. */
      33    if (__unlink (file) != 0
      34        /* If it is indeed a directory...  */
      35        && (IS_NO_DIRECTORY_ERROR
      36  	  /* ...try to remove it.  */
      37  	  || __rmdir (file) != 0))
      38      /* Cannot remove the object for whatever reason.  */
      39      return -1;
      40  
      41    return 0;
      42  }
      43  libc_hidden_def (remove)