1// -*- C++ -*- 2/* Copyright (C) 1992, 2001, 2003, 2005 Free Software Foundation, Inc. 3 Written by James Clark (jjc@jclark.com) 4 5This file is part of groff. 6 7groff is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 2, or (at your option) any later 10version. 11 12groff is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17You should have received a copy of the GNU General Public License along 18with groff; see the file COPYING. If not, write to the Free Software 19Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */ 20 21/* file_name_max(dir) does the same as pathconf(dir, _PC_NAME_MAX) */ 22 23#include "lib.h" 24 25#include <sys/types.h> 26 27#ifdef HAVE_UNISTD_H 28#include <unistd.h> 29#endif /* HAVE_UNISTD_H */ 30 31#ifdef _POSIX_VERSION 32 33size_t file_name_max(const char *fname) 34{ 35 return pathconf(fname, _PC_NAME_MAX); 36} 37 38#else /* not _POSIX_VERSION */ 39 40#ifdef HAVE_DIRENT_H 41#include <dirent.h> 42#else /* not HAVE_DIRENT_H */ 43#ifdef HAVE_SYS_DIR_H 44#include <sys/dir.h> 45#endif /* HAVE_SYS_DIR_H */ 46#endif /* not HAVE_DIRENT_H */ 47 48#ifndef NAME_MAX 49#ifdef MAXNAMLEN 50#define NAME_MAX MAXNAMLEN 51#else /* !MAXNAMLEN */ 52#ifdef MAXNAMELEN 53#define NAME_MAX MAXNAMELEN 54#else /* !MAXNAMELEN */ 55#define NAME_MAX 14 56#endif /* !MAXNAMELEN */ 57#endif /* !MAXNAMLEN */ 58#endif /* !NAME_MAX */ 59 60size_t file_name_max(const char *) 61{ 62 return NAME_MAX; 63} 64 65#endif /* not _POSIX_VERSION */ 66