ROX-Filer/src/modechange.h

   1 /*
   2  * $Id$
   3  *
   4  * ROX-Filer, filer for the ROX desktop project
   5  * By Thomas Leonard, <tal197@users.sourceforge.net>.
   6  *
   7  * This rest of this file was taken from GNU FileUtils, with minor
   8  * modifications.
   9  */
  10
  11 /* Masks for the `flags' field in a `struct mode_change'. */
  12
  13 #if ! defined MODECHANGE_H_
  14 # define MODECHANGE_H_
  15
  16 /* Affect the execute bits only if at least one execute bit is set already,
  17    or if the file is a directory. */
  18 # define MODE_X_IF_ANY_X 01
  19
  20 /* If set, copy some existing permissions for u, g, or o onto the other two.
  21    Which of u, g, or o is copied is determined by which bits are set in the
  22    `value' field. */
  23 # define MODE_COPY_EXISTING 02
  24
  25 struct mode_change
  26 {
  27   char op;                      /* One of "=+-". */
  28   char flags;                   /* Special operations. */
  29   unsigned short affected;      /* Set for u/g/o/s/s/t, if to be affected. */
  30   unsigned short value;         /* Bits to add/remove. */
  31   struct mode_change *next;     /* Link to next change in list. */
  32 };
  33
  34 /* Masks for mode_compile argument. */
  35 # define MODE_MASK_EQUALS 1
  36 # define MODE_MASK_PLUS 2
  37 # define MODE_MASK_MINUS 4
  38 # define MODE_MASK_ALL (MODE_MASK_EQUALS | MODE_MASK_PLUS | MODE_MASK_MINUS)
  39
  40 struct mode_change *mode_compile(const char *, unsigned);
  41 unsigned short mode_adjust(unsigned, const struct mode_change *);
  42 void mode_free(struct mode_change *);
  43
  44 #endif