lib/modetype.h

   1 /* modetype.h -- file type bits definitions for POSIX systems
   2    Requires sys/types.h sys/stat.h.
   3    Copyright (C) 1990 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  18
  19 /* POSIX.1 doesn't mention the S_IFMT bits; instead, it uses S_IStype
  20    test macros.  To make storing file types more convenient, define
  21    them; the values don't need to correspond to what the kernel uses,
  22    because of the way we use them. */
  23 #ifndef S_IFMT                  /* Doesn't have traditional Unix macros. */
  24 #define S_IFBLK 1
  25 #define S_IFCHR 2
  26 #define S_IFDIR 4
  27 #define S_IFREG 8
  28 #ifdef S_ISLNK
  29 #define S_IFLNK 16
  30 #endif
  31 #ifdef S_ISFIFO
  32 #define S_IFIFO 32
  33 #endif
  34 #ifdef S_ISSOCK
  35 #define S_IFSOCK 64
  36 #endif
  37 #endif /* !S_IFMT */
  38
  39 #ifdef STAT_MACROS_BROKEN
  40 #undef S_ISBLK
  41 #undef S_ISCHR
  42 #undef S_ISDIR
  43 #undef S_ISREG
  44 #undef S_ISFIFO
  45 #undef S_ISLNK
  46 #undef S_ISSOCK
  47 #undef S_ISMPB
  48 #undef S_ISMPC
  49 #undef S_ISNWK
  50 #endif
  51
  52 /* Do the reverse: define the POSIX.1 macros for traditional Unix systems
  53    that don't have them.  */
  54 #if !defined(S_ISBLK) && defined(S_IFBLK)
  55 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
  56 #endif
  57 #if !defined(S_ISCHR) && defined(S_IFCHR)
  58 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
  59 #endif
  60 #if !defined(S_ISDIR) && defined(S_IFDIR)
  61 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
  62 #endif
  63 #if !defined(S_ISREG) && defined(S_IFREG)
  64 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
  65 #endif
  66 #if !defined(S_ISFIFO) && defined(S_IFIFO)
  67 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
  68 #endif
  69 #if !defined(S_ISLNK) && defined(S_IFLNK)
  70 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
  71 #endif
  72 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
  73 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
  74 #endif
  75 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
  76 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
  77 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
  78 #endif
  79 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
  80 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
  81 #endif