include/maxpath.h

   1 /* maxpath.h - Find out what this system thinks PATH_MAX and NAME_MAX are. */
   2
   3 /* Copyright (C) 1993 Free Software Foundation, Inc.
   4
   5    This file is part of GNU Bash, the Bourne Again SHell.
   6
   7    Bash is free software: you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation, either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    Bash is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with Bash.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #if !defined (_MAXPATH_H_)
  22 #define _MAXPATH_H_
  23
  24 /* These values are supposed to be in <limits.h> or one of the files
  25    it includes. */
  26 #if defined (HAVE_LIMITS_H)
  27 #  include <limits.h>
  28 #endif /* !HAVE_LIMITS_H */
  29
  30 /* If PATH_MAX is not defined, look for MAXPATHLEN */
  31 #if !defined (PATH_MAX)
  32 #  if defined (HAVE_SYS_PARAM_H)
  33 #    include <sys/param.h>
  34 #    define maxpath_param_h
  35 #  endif
  36 #  if defined (MAXPATHLEN) && !defined (PATH_MAX)
  37 #    define PATH_MAX MAXPATHLEN
  38 #  endif /* MAXPATHLEN && !PATH_MAX */
  39 #endif /* !PATH_MAX */
  40
  41 /* If NAME_MAX is not defined, look for MAXNAMLEN */
  42 #if !defined (NAME_MAX)
  43 #  if defined (HAVE_SYS_PARAM_H) && !defined (maxpath_param_h)
  44 #    include <sys/param.h>
  45 #  endif
  46 #  if defined (MAXNAMLEN) && !defined (NAME_MAX)
  47 #    define NAME_MAX MAXNAMLEN
  48 #  endif /* MAXNAMLEN && !NAME_MAX */
  49 #endif /* !NAME_MAX */
  50
  51 /* Default POSIX values */
  52 #if !defined (PATH_MAX) && defined (_POSIX_PATH_MAX)
  53 #  define PATH_MAX _POSIX_PATH_MAX
  54 #endif
  55
  56 #if !defined (NAME_MAX) && defined (_POSIX_NAME_MAX)
  57 #  define NAME_MAX _POSIX_NAME_MAX
  58 #endif
  59
  60
  61 /* Default values */
  62 #if !defined (PATH_MAX)
  63 #  define PATH_MAX 1024
  64 #endif
  65
  66 #if !defined (NAME_MAX)
  67 #  define NAME_MAX 14
  68 #endif
  69
  70 #if PATH_MAX < 1024
  71 #  undef PATH_MAX
  72 #  define PATH_MAX 1024
  73 #endif
  74
  75 #endif /* _MAXPATH_H_ */