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  1. /* This is file ACCESS.C */
  2. /*
  3.  * Copyright (C) 1993 DJ Delorie
  4.  * All rights reserved.
  5.  *
  6.  * Redistribution, modification, and use in source and binary forms is permitted
  7.  * provided that the above copyright notice and following paragraph are
  8.  * duplicated in all such forms.
  9.  *
  10.  * This file is distributed WITHOUT ANY WARRANTY; without even the implied
  11.  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12.  */
  13.  
  14. #include <fcntl.h>
  15. #include <sys/stat.h>
  16. #include <unistd.h>
  17.  
  18. int access(const char *fn, int flags)
  19. {
  20.   struct stat s;
  21.   if (stat(fn, &s))
  22.     return -1;
  23.   if (s.st_mode & S_IFDIR)
  24.     return 0;
  25.   if (flags & W_OK)
  26.   {
  27.     if (s.st_mode & S_IWRITE)
  28.       return 0;
  29.     return -1;
  30.   }
  31.   return 0;
  32. }
  33.        
  34.