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 3 of the License, or
   8    (at your option) 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, see <http://www.gnu.org/licenses/>.
  17 */
  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 INC_MODETYPE_H
  24 #define INC_MODETYPE_H 1
  25
  26 #ifndef S_IFMT                  /* Doesn't have traditional Unix macros. */
  27 #define S_IFBLK 1
  28 #define S_IFCHR 2
  29 #define S_IFDIR 4
  30 #define S_IFREG 8
  31 #ifdef S_ISLNK
  32 #define S_IFLNK 16
  33 #endif
  34 #ifdef S_ISFIFO
  35 #define S_IFIFO 32
  36 #endif
  37 #ifdef S_ISSOCK
  38 #define S_IFSOCK 64
  39 #endif
  40 #ifdef S_ISDOOR
  41 #define S_IFDOOR 128
  42 #endif
  43 #endif /* !S_IFMT */
  44
  45 #ifdef STAT_MACROS_BROKEN
  46 #undef S_ISBLK
  47 #undef S_ISCHR
  48 #undef S_ISDIR
  49 #undef S_ISREG
  50 #undef S_ISFIFO
  51 #undef S_ISLNK
  52 #undef S_ISSOCK
  53 #undef S_ISDOOR
  54 #undef S_ISMPB
  55 #undef S_ISMPC
  56 #undef S_ISNWK
  57 #endif
  58
  59 /* Do the reverse: define the POSIX.1 macros for traditional Unix systems
  60    that don't have them.  */
  61 #if !defined(S_ISBLK) && defined(S_IFBLK)
  62 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
  63 #endif
  64 #if !defined(S_ISCHR) && defined(S_IFCHR)
  65 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
  66 #endif
  67 #if !defined(S_ISDIR) && defined(S_IFDIR)
  68 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
  69 #endif
  70 #if !defined(S_ISREG) && defined(S_IFREG)
  71 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
  72 #endif
  73 #if !defined(S_ISFIFO) && defined(S_IFIFO)
  74 #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
  75 #endif
  76 #if !defined(S_ISLNK) && defined(S_IFLNK)
  77 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
  78 #endif
  79 #if !defined(S_ISSOCK) && defined(S_IFSOCK)
  80 #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
  81 #endif
  82 #if !defined(S_ISDOOR) && defined(S_IFDOOR)
  83 #define S_ISDOOR(m) (((m) & S_IFMT) == S_IFDOOR)
  84 #endif
  85 #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
  86 /* Also available on Coherent, according to
  87  * Albert D. Cahalan (acahalan@cs.uml.edu)
  88  */
  89 #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB) /* multiplexed block device */
  90 #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC) /* multiplexed char  device */
  91 /* GNU BFD library source uses type letter 'm' for these */
  92 #endif
  93
  94 #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
  95 /* Apparently HPUX ls gives 'n' as the type letter for these. */
  96 #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
  97 #endif
  98
  99 #endif
 100
 101 /* The above macros don't handle
 102  * /bin/ls letters     Mode    What is it?
 103  *                     S_IFNAM (Xenix "name files")
 104  *  H                  S_ISCDF (HPUX Context Dependent Files)
 105  *                     S_IFCMP
 106  *                     S_IFSHAD
 107  */
 108
 109 /*
 110 In message <199907051927.PAA01106@jupiter.cs.uml.edu>
 111 Albert Cahalan wrote:-
 112
 113 BTW, I believe many of these can't actually exist on disk.
 114 Some of these (like S_IFSHAD AFAIK) are not seen by userspace.
 115
 116 hex  name     ls octal  description
 117 0000             000000 SCO out-of-service inode, BSD unknown type
 118 1000 S_IFIFO  p| 010000 fifo (named pipe)
 119 2000 S_IFCHR  c  020000 character special
 120 3000 S_IFMPC     030000 multiplexed character device (Coherent)
 121 4000 S_IFDIR  d/ 040000 directory
 122 5000 S_IFNAM     050000 XENIX special named file
 123 6000 S_IFBLK  b  060000 block special
 124 7000 S_IFMPB     070000 multiplexed block device (Coherent)
 125 8000 S_IFREG  -  100000 regular
 126 9000 S_IFCMP     110000 VxFS compressed (file?)
 127 9000 S_IFNWK     110000 HP-UX network special
 128 a000 S_IFLNK  l@ 120000 symbolic link
 129 b000 S_IFSHAD    130000 Solaris shadow inode for ACL
 130 c000 S_IFSOCK s= 140000 socket (also "S_IFSOC" on VxFS)
 131 d000 S_IFDOOR D  150000 Solaris door
 132 e000 S_IFWHT  w% 160000 BSD whiteout (not used for inode)
 133 f000 S_IFMT      170000 mask (not used for inode)
 134 hex  name     ls octal  description
 135 0200 S_ISVTX     001000 save swapped text even after use
 136 0400 S_ISGID     002000 set group ID on execution
 137 0400 S_ENFMT     002000 SysV forced file locking (shared w/ S_ISGID)
 138 0800 S_CDF       004000 HP-UX hidden directory
 139 0800 S_ISUID     004000 set user ID on execution
 140
 141
 142 */