2 /* Copyright (C) 2005-2018 Free Software Foundation, Inc.
3 Written by Werner Lemberg (wl@gnu.org)
5 This file is part of groff.
7 groff is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* path_name_max(dir) does the same as pathconf(dir, _PC_PATH_MAX) */
24 #include <sys/types.h>
28 #endif /* HAVE_UNISTD_H */
32 size_t path_name_max()
34 return pathconf("/", _PC_PATH_MAX) < 1 ? 1024 : pathconf("/",_PC_PATH_MAX);
37 #else /* not _POSIX_VERSION */
43 #else /* not HAVE_DIRENT_H */
44 # ifdef HAVE_SYS_DIR_H
46 # endif /* HAVE_SYS_DIR_H */
47 #endif /* not HAVE_DIRENT_H */
51 # define PATH_MAX MAXPATHLEN
52 # else /* !MAXPATHLEN */
54 # define PATH_MAX MAX_PATH
55 # else /* !MAX_PATH */
57 # define PATH_MAX _MAX_PATH
58 # else /* !_MAX_PATH */
60 # endif /* !_MAX_PATH */
61 # endif /* !MAX_PATH */
62 # endif /* !MAXPATHLEN */
63 #endif /* !PATH_MAX */
65 size_t path_name_max()
70 #endif /* not _POSIX_VERSION */