2.11BSD#431 - /usr/src/local/mtools/is_dir.c

   1: /*
   2:  * Test to see if a filename is a directory.  Subdir() has to be called
   3:  * on the directory above this one first...  Returns 1 if true.
   4:  */
   5: 
   6: #include <stdio.h>
   7: #include "msdos.h"
   8: 
   9: extern int dir_entries;
  10: 
  11: int
  12: is_dir(path)
  13: char *path;
  14: {
  15:     register int entry;
  16:     char *newname, *unix_name();
  17:     struct directory *dir, *dir_read();
  18:                     /* no path */
  19:     if (*path == '\0')
  20:         return(0);
  21: 
  22:     for (entry = 0; entry < dir_entries; entry++) {
  23:         dir = dir_read(entry);
  24:                     /* if empty */
  25:         if (dir->name[0] == 0x0)
  26:             break;
  27:                     /* if erased */
  28:         if (dir->name[0] == 0xe5)
  29:             continue;
  30:                     /* skip if not a directory */
  31:         if (!(dir->attr & 0x10))
  32:             continue;
  33: 
  34:         newname = unix_name(dir->name, dir->ext);
  35:         if (match(newname, path))
  36:             return(1);
  37:     }
  38: 
  39:     /*
  40: 	 * If the file is "." or ".." but it fails to match, then you
  41: 	 * must be at root
  42: 	 */
  43:     if (!strcmp(path, ".") || !strcmp(path, ".."))
  44:         return(1);
  45: 
  46:     return(0);
  47: }

Defined functions