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46 lines
2.0 KiB
C
46 lines
2.0 KiB
C
/* Minimum guaranteed maximum values for system limits. Hurd version.
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Copyright (C) 1993,94,96,98,2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* GNU has no arbitrary fixed limits on most of these things, so we
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don't define the macros. Some things are unlimited. Some are in
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fact limited but the limit is run-time dependent and fetched with
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`sysconf' or `pathconf'. */
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/* This one value is actually constrained by the `struct dirent'
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layout, in which the `d_namlen' member is only 8 bits wide. */
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#define NAME_MAX 255
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/* POSIX.1 requires that we define NGROUPS_MAX (though none of the others
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is required). GNU allows any number of supplementary groups,
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dynamically allocated. So we pick a number which seems vaguely
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suitable, and `sysconf' will return a number at least as large. */
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#define NGROUPS_MAX 256
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/* The maximum number of symbolic links that are allowed in a single file
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name resolution. When a further link is encountered, the call returns
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ELOOP. This name is a GNU extension; POSIX.1 has no such limit, and BSD
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calls it MAXSYMLINKS in <sys/param.h>. (We define the name under
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_BSD_SOURCE even without _GNU_SOURCE because our <sys/param.h> uses it
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to define MAXSYMLINKS.) */
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#if defined __USE_GNU || defined __USE_BSD /* 1003.1a defines this */
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#define SYMLOOP_MAX 8
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#endif
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