1 // -*- C++ -*-
2 /* Copyright (C) 1992, 2001, 2003, 2005 Free Software Foundation, Inc.
3 Written by James Clark (jjc@jclark.com)
4
5 This file is part of groff.
6
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 2, or (at your option) any later
10 version.
11
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
15 for more details.
16
17 You should have received a copy of the GNU General Public License along
18 with groff; see the file COPYING. If not, write to the Free Software
19 Foundation, 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
file_name_max(const char * fname)33 size_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
file_name_max(const char *)60 size_t file_name_max(const char *)
61 {
62 return NAME_MAX;
63 }
64
65 #endif /* not _POSIX_VERSION */
66