pith/osdep/writ_dir.c

   1 #if !defined(lint) && !defined(DOS)
   2 static char rcsid[] = "$Id: writ_dir.c 761 2007-10-23 22:35:18Z hubert@u.washington.edu $";
   3 #endif
   4
   5 /*
   6  * ========================================================================
   7  * Copyright 2013-2020 Eduardo Chappa
   8  * Copyright 2006 University of Washington
   9  *
  10  * Licensed under the Apache License, Version 2.0 (the "License");
  11  * you may not use this file except in compliance with the License.
  12  * You may obtain a copy of the License at
  13  *
  14  *     http://www.apache.org/licenses/LICENSE-2.0
  15  *
  16  * ========================================================================
  17  */
  18
  19 #include <system.h>
  20 #include "../charconv/utf8.h"
  21 #include "../charconv/filesys.h"
  22 #include "canaccess.h"
  23 #include "writ_dir.h"
  24
  25
  26 /*----------------------------------------------------------------------
  27       Check to see if a directory exists and is writable by us
  28
  29    Args: dir -- directory name
  30
  31  Result:       returns 0 if it exists and is writable
  32                        1 if it is a directory, but is not writable
  33                        2 if it is not a directory
  34                        3 it doesn't exist.
  35   ----*/
  36 int
  37 is_writable_dir(char *dir)
  38 {
  39     struct stat sb;
  40
  41     if(our_stat(dir, &sb) < 0)
  42       /*--- It doesn't exist ---*/
  43       return(3);
  44
  45     if(!(sb.st_mode & S_IFDIR))
  46       /*---- it's not a directory ---*/
  47       return(2);
  48
  49     if(can_access(dir, 07))
  50       return(1);
  51     else
  52       return(0);
  53 }
  54
  55