111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* $OpenBSD: limits.h,v 1.6 2005/12/13 00:35:23 millert Exp $ */ 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Copyright (c) 2002 Marc Espie. 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Redistribution and use in source and binary forms, with or without 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * modification, are permitted provided that the following conditions 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * are met: 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 1. Redistributions of source code must retain the above copyright 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer. 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 2. Redistributions in binary form must reproduce the above copyright 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer in the 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * documentation and/or other materials provided with the distribution. 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef _SYS_LIMITS_H_ 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _SYS_LIMITS_H_ 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/cdefs.h> 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <linux/limits.h> 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Common definitions for limits.h. */ 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * <machine/internal_types.h> is meant to describe a specific architecture, 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * but to be a safe include, that doesn't ever define anything that is 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * user-visible (only typedefs and #define names that stays in the __xxx 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * namespace). 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * __machine_has_unsigned_chars (default is signed chars) 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * __FLT_xxx/__DBL_xxx non standard values for floating 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * points limits. 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <machine/internal_types.h> 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Legacy */ 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <machine/limits.h> 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define CHAR_BIT 8 /* number of bits in a char */ 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SCHAR_MAX 0x7f /* max value for a signed char */ 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SCHAR_MIN (-0x7f-1) /* min value for a signed char */ 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define UCHAR_MAX 0xffU /* max value for an unsigned char */ 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef __machine_has_unsigned_chars 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define CHAR_MIN 0 /* min value for a char */ 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define CHAR_MAX 0xff /* max value for a char */ 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define CHAR_MAX 0x7f 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define CHAR_MIN (-0x7f-1) 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define USHRT_MAX 0xffffU /* max value for an unsigned short */ 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SHRT_MAX 0x7fff /* max value for a short */ 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define SHRT_MIN (-0x7fff-1) /* min value for a short */ 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define UINT_MAX 0xffffffffU /* max value for an unsigned int */ 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define INT_MAX 0x7fffffff /* max value for an int */ 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define INT_MIN (-0x7fffffff-1) /* min value for an int */ 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef __LP64__ 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define ULONG_MAX 0xffffffffffffffffUL 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* max value for unsigned long */ 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define LONG_MAX 0x7fffffffffffffffL 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* max value for a signed long */ 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define LONG_MIN (-0x7fffffffffffffffL-1) 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* min value for a signed long */ 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define LONG_MAX 0x7fffffffL /* max value for a long */ 8111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define LONG_MIN (-0x7fffffffL-1)/* min value for a long */ 8211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 8311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 8511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define ULLONG_MAX 0xffffffffffffffffULL 8611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* max value for unsigned long long */ 8711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define LLONG_MAX 0x7fffffffffffffffLL 8811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* max value for a signed long long */ 8911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define LLONG_MIN (-0x7fffffffffffffffLL-1) 9011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /* min value for a signed long long */ 9111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 9211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __BSD_VISIBLE 9411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define UID_MAX UINT_MAX /* max value for a uid_t */ 9511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define GID_MAX UINT_MAX /* max value for a gid_t */ 9611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 9711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef __LP64__ 10011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define LONG_BIT 64 10111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 10211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define LONG_BIT 32 10311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 10411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* float.h defines these as well */ 10611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# if !defined(DBL_DIG) 10711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# if defined(__DBL_DIG) 10811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define DBL_DIG __DBL_DIG 10911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define DBL_MAX __DBL_MAX 11011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define DBL_MIN __DBL_MIN 11111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 11211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define FLT_DIG __FLT_DIG 11311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define FLT_MAX __FLT_MAX 11411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define FLT_MIN __FLT_MIN 11511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# else 11611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define DBL_DIG 15 11711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define DBL_MAX 1.7976931348623157E+308 11811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define DBL_MIN 2.2250738585072014E-308 11911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define FLT_DIG 6 12111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define FLT_MAX 3.40282347E+38F 12211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# define FLT_MIN 1.17549435E-38F 12311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# endif 12411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert# endif 12511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Bionic: the following has been optimized out from our processed kernel headers */ 12711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 12811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define CHILD_MAX 999 12911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define OPEN_MAX 256 13011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* Bionic-specific definitions */ 13211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_VERSION 200112L /* Posix C language bindings version */ 13411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX2_VERSION -1 /* we don't support Posix command-line tools */ 13511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX2_C_VERSION _POSIX_VERSION 13611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_VERSION 500 /* by Posix definition */ 13711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_XCU_VERSION -1 /* we don't support command-line utilities */ 13811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 13911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* tell what we implement legacy stuff when appropriate */ 14011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if _POSIX_VERSION > 0 14111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_XPG2 1 14211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_XPG3 1 14311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_XPG4 1 14411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_UNIX 1 14511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 14611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 14711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_ENH_I18N -1 /* we don't support internationalization in the C library */ 14811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_CRYPT -1 /* don't support X/Open Encryption */ 14911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_LEGACY -1 /* don't claim we support these, we have some of them but not all */ 15011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_REALTIME -1 /* we don't support all these functions */ 15111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _XOPEN_REALTIME_THREADS -1 /* same here */ 15211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 15311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_REALTIME_SIGNALS -1 /* for now, this is not supported */ 15411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_PRIORITY_SCHEDULING 1 /* priority scheduling is a Linux feature */ 15511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_TIMERS 1 /* Posix timers are supported */ 15611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#undef _POSIX_ASYNCHRONOUS_IO /* aio_ functions are not supported */ 15711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_SYNCHRONIZED_IO 1 /* synchronized i/o supported */ 15811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_FSYNC 1 /* fdatasync() supported */ 15911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_MAPPED_FILES 1 /* mmap-ed files supported */ 16011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* XXX: TODO: complete and check list here */ 16211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_THREADS 1 /* we support threads */ 16511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_THREAD_STACKADDR 1 /* we support thread stack address */ 16611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_THREAD_STACKSIZE 1 /* we support thread stack size */ 16711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_THREAD_PRIO_INHERIT 200112L /* linux feature */ 16811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_THREAD_PRIO_PROTECT 200112L /* linux feature */ 16911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#undef _POSIX_PROCESS_SHARED /* we don't support process-shared synchronization */ 17111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#undef _POSIX_THREAD_SAFE_FUNCTIONS /* most functions are, but not everything yet */ 17211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_CHOWN_RESTRICTED 1 /* yes, chown requires appropriate privileges */ 17311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_MONOTONIC_CLOCK 0 /* the monotonic clock may be available; ask sysconf */ 17411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_NO_TRUNC 1 /* very long pathnames generate an error */ 17511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_SAVED_IDS 1 /* saved user ids is a Linux feature */ 17611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _POSIX_JOB_CONTROL 1 /* job control is a Linux feature */ 17711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 181