contrib/diffutils/lib/file-type.c

   1 /* Return a string describing the type of a file.
   2
   3    Copyright (C) 1993-1994, 2001-2002, 2004-2006, 2009-2013 Free Software
   4    Foundation, Inc.
   5
   6    This program is free software: you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 /* Written by Paul Eggert.  */
  20
  21 #include <config.h>
  22
  23 #include "file-type.h"
  24
  25 #include <gettext.h>
  26 #define _(text) gettext (text)
  27
  28 char const *
  29 file_type (struct stat const *st)
  30 {
  31   /* See POSIX 1003.1-2001 XCU Table 4-8 lines 17093-17107 for some of
  32      these formats.
  33
  34      To keep diagnostics grammatical in English, the returned string
  35      must start with a consonant.  */
  36
  37   if (S_ISREG (st->st_mode))
  38     return st->st_size == 0 ? _("regular empty file") : _("regular file");
  39
  40   if (S_ISDIR (st->st_mode))
  41     return _("directory");
  42
  43   if (S_ISBLK (st->st_mode))
  44     return _("block special file");
  45
  46   if (S_ISCHR (st->st_mode))
  47     return _("character special file");
  48
  49   if (S_ISFIFO (st->st_mode))
  50     return _("fifo");
  51
  52   if (S_ISLNK (st->st_mode))
  53     return _("symbolic link");
  54
  55   if (S_ISSOCK (st->st_mode))
  56     return _("socket");
  57
  58   if (S_TYPEISMQ (st))
  59     return _("message queue");
  60
  61   if (S_TYPEISSEM (st))
  62     return _("semaphore");
  63
  64   if (S_TYPEISSHM (st))
  65     return _("shared memory object");
  66
  67   if (S_TYPEISTMO (st))
  68     return _("typed memory object");
  69
  70   return _("weird file");
  71 }