lib/file-type.c

   1 /* Return a string describing the type of a file.
   2
   3    Copyright (C) 1993, 1994, 2001, 2002 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 Foundation,
  17    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  18
  19 /* Written by Paul Eggert.  */
  20
  21 #if HAVE_CONFIG_H
  22 # include <config.h>
  23 #endif
  24
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include "file-type.h"
  28
  29 #include <gettext.h>
  30 #define _(text) gettext (text)
  31
  32 char const *
  33 file_type (struct stat const *st)
  34 {
  35   /* See POSIX 1003.1-2001 XCU Table 4-8 lines 17093-17107 for some of
  36      these formats.
  37
  38      To keep diagnostics grammatical in English, the returned string
  39      must start with a consonant.  */
  40
  41   if (S_ISREG (st->st_mode))
  42     return st->st_size == 0 ? _("regular empty file") : _("regular file");
  43
  44   if (S_ISDIR (st->st_mode))
  45     return _("directory");
  46
  47   if (S_ISBLK (st->st_mode))
  48     return _("block special file");
  49
  50   if (S_ISCHR (st->st_mode))
  51     return _("character special file");
  52
  53   if (S_ISFIFO (st->st_mode))
  54     return _("fifo");
  55
  56   if (S_ISLNK (st->st_mode))
  57     return _("symbolic link");
  58
  59   if (S_ISSOCK (st->st_mode))
  60     return _("socket");
  61
  62   if (S_TYPEISMQ (st))
  63     return _("message queue");
  64
  65   if (S_TYPEISSEM (st))
  66     return _("semaphore");
  67
  68   if (S_TYPEISSHM (st))
  69     return _("shared memory object");
  70
  71   return _("weird file");
  72 }