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, 2007 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  18    USA.
  19 */
  20
  21 /* POSIX.1 doesn't mention the S_IFMT bits; instead, it uses S_IStype
  22    test macros.  To make storing file types more convenient, define
  23    them; the values don't need to correspond to what the kernel uses,
  24    because of the way we use them. */
  25 #ifndef INC_MODETYPE_H
  26 #define INC_MODETYPE_H 1
  27
  28 #ifndef S_IFMT                  /* Doesn't have traditional Unix macros. */
  29 #define S_IFBLK 1
  30 #define S_IFCHR 2
  31 #define S_IFDIR 4
  32 #define S_IFREG 8
  33 #ifdef S_ISLNK
  34 #define S_IFLNK 16
  35 #endif
  36 #ifdef S_ISFIFO
  37 #define S_IFIFO 32
  38 #endif
  39 #ifdef S_ISSOCK
  40 #define S_IFSOCK 64
  41 #endif
  42 #ifdef S_ISDOOR
  43 #define S_IFDOOR 128
  44 #endif
  45 #endif /* !S_IFMT */
  46
  47 #ifdef STAT_MACROS_BROKEN
  48 #undef S_ISBLK
  49 #undef S_ISCHR
  50 #undef S_ISDIR
  51 #undef S_ISREG
  52 #undef S_ISFIFO
  53 #undef S_ISLNK
  54 #undef S_ISSOCK
  55 #undef S_ISDOOR
  56 #undef S_ISMPB
  57 #undef S_ISMPC
  58 #undef S_ISNWK
  59 #endif
  60
  61 /* Do the reverse: define the POSIX.1 macros for traditional Unix systems
  62    that don't have them.  */
  63 #if !defined(S_ISBLK) && defined(S_IFBLK)
  64 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
  65 #endif
  66 #if !defined(S_ISCHR) && defined(S_IFCHR)
  67 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
  68 #endif
  69 #if !defined(S_ISDIR) && defined(S_IFDIR)
  70 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
  71 #endif
  72 #if !defined(S_ISREG) && defined(S_IFREG)
  73 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
  74 #endif
  75 #if !defined(S_ISFIFO) && defined(S_IFIFO)
  76 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
  77 #endif
  78 #if !defined(S_ISLNK) && defined(S_IFLNK)
  79 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
  80 #endif
  81 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
  82 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
  83 #endif
  84 #if !defined(S_ISDOOR) && defined(S_IFDOOR)
  85 #define S_ISDOOR(m) (((m) & S_IFMT) == S_IFDOOR)
  86 #endif
  87 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
  88 /* Also available on Coherent, according to
  89  * Albert D. Cahalan (acahalan@cs.uml.edu)
  90  */
  91 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB) /* multiplexed block device */
  92 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC) /* multiplexed char  device */
  93 /* GNU BFD library source uses type letter 'm' for these */
  94 #endif
  95
  96 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
  97 /* Apparently HPUX ls gives 'n' as the type letter for these. */
  98 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
  99 #endif
 100
 101 #endif
 102
 103 /* The above macros don't handle
 104  * /bin/ls letters     Mode    What is it?
 105  *                     S_IFNAM (Xenix "name files")
 106  *  H                  S_ISCDF (HPUX Context Dependent Files)
 107  *                     S_IFCMP
 108  *                     S_IFSHAD
 109  */
 110
 111 /*
 112 In message <199907051927.PAA01106@jupiter.cs.uml.edu>
 113 Albert Cahalan wrote:-
 114
 115 BTW, I believe many of these can't actually exist on disk.
 116 Some of these (like S_IFSHAD AFAIK) are not seen by userspace.
 117
 118 hex  name     ls octal  description
 119 0000             000000 SCO out-of-service inode, BSD unknown type
 120 1000 S_IFIFO  p| 010000 fifo (named pipe)
 121 2000 S_IFCHR  c  020000 character special
 122 3000 S_IFMPC     030000 multiplexed character device (Coherent)
 123 4000 S_IFDIR  d/ 040000 directory
 124 5000 S_IFNAM     050000 XENIX special named file
 125 6000 S_IFBLK  b  060000 block special
 126 7000 S_IFMPB     070000 multiplexed block device (Coherent)
 127 8000 S_IFREG  -  100000 regular
 128 9000 S_IFCMP     110000 VxFS compressed (file?)
 129 9000 S_IFNWK     110000 HP-UX network special
 130 a000 S_IFLNK  l@ 120000 symbolic link
 131 b000 S_IFSHAD    130000 Solaris shadow inode for ACL
 132 c000 S_IFSOCK s= 140000 socket (also "S_IFSOC" on VxFS)
 133 d000 S_IFDOOR D  150000 Solaris door
 134 e000 S_IFWHT  w% 160000 BSD whiteout (not used for inode)
 135 f000 S_IFMT      170000 mask (not used for inode)
 136 hex  name     ls octal  description
 137 0200 S_ISVTX     001000 save swapped text even after use
 138 0400 S_ISGID     002000 set group ID on execution
 139 0400 S_ENFMT     002000 SysV forced file locking (shared w/ S_ISGID)
 140 0800 S_CDF       004000 HP-UX hidden directory
 141 0800 S_ISUID     004000 set user ID on execution
 142
 143
 144 */