libgloss/mt/access.c

   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