src/lib-roff/maxfilename.cpp

   1 /*@ file_name_max(dir) does the same as pathconf(dir, _PC_NAME_MAX).
   2  *
   3  * Copyright (c) 2014 - 2017 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
   4  *
   5  * Copyright (C) 1992, 2001, 2003, 2005 Free Software Foundation, Inc.
   6  *      Written by James Clark (jjc@jclark.com)
   7  *
   8  * This is free software; you can redistribute it and/or modify it under
   9  * the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; either version 2, or (at your option) any later
  11  * version.
  12  *
  13  * This is distributed in the hope that it will be useful, but WITHOUT ANY
  14  * WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16  * for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with groff; see the file COPYING.  If not, write to the Free Software
  20  * Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA.
  21  */
  22
  23 #include "config.h"
  24 #include "lib.h"
  25
  26 #include <sys/types.h>
  27
  28 #ifdef HAVE_UNISTD_H
  29 # include <unistd.h>
  30 #endif
  31
  32 #ifdef _POSIX_VERSION
  33 size_t file_name_max(const char *fname)
  34 {
  35   return pathconf(fname, _PC_NAME_MAX);
  36 }
  37
  38 #else
  39 # ifdef HAVE_DIRENT_H
  40 #  include <dirent.h>
  41 # else
  42 #  ifdef HAVE_SYS_DIR_H
  43 #   include <sys/dir.h>
  44 #  endif
  45 # endif
  46
  47 # ifndef NAME_MAX
  48 #  ifdef MAXNAMLEN
  49 #   define NAME_MAX MAXNAMLEN
  50 #  else
  51 #   ifdef MAXNAMELEN
  52 #    define NAME_MAX MAXNAMELEN
  53 #   else
  54 #    define NAME_MAX 14
  55 #   endif
  56 #  endif
  57 # endif
  58
  59 size_t file_name_max(const char *)
  60 {
  61   return NAME_MAX;
  62 }
  63 #endif /* _POSIX_VERSION */
  64
  65 // s-it2-mode