glibc/sysdeps/mach/hurd/local_lim.h

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1995-02-18 01:27:10 +00:00
/* Minimum guaranteed maximum values for system limits. Hurd version.
Copyright (C) 1993, 1994 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* GNU has no arbitrary fixed limits on these things, so we don't
define the macros. Some things are unlimited. Some are in fact
limited but the limit is run-time dependent and fetched with
`sysconf' or `pathconf'.
POSIX.1 requires that we define NGROUPS_MAX (though none of the others
is required). GNU allows any number of supplementary groups,
dynamically allocated. So we pick a number which seems vaguely
suitable, and `sysconf' will return a number at least as large. */
#define NGROUPS_MAX 256
/* The maximum number of symbolic links that are allowed in a single file
name resolution. When a further link is encountered, the call returns
ELOOP. This name is a GNU extension; POSIX.1 has no such limit, and BSD
calls it MAXSYMLINKS in <sys/param.h>. */
#ifdef __USE_GNU /* 1003.1a defines this */
#define SYMLOOP_MAX 8
#endif