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linux_limit.h revision 1.2 
      1 /* 	$NetBSD: linux_limit.h,v 1.2 2007/12/04 18:40:16 dsl Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1995, 1998, 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Frank van der Linden and Eric Haszlakiewicz; by Jason R. Thorpe
      9  * of the Numerical Aerospace Simulation Facility, NASA Ames Research Center.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the NetBSD
     22  *	Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 #ifndef _LINUX_LIMIT_H_
     41 #define _LINUX_LIMIT_H_
     42 
     43 static int linux_to_bsd_limit(int);
     44 
     45 #ifdef LINUX_LARGEFILE64
     46 #define bsd_to_linux_rlimit1(l, b, f) \
     47     (l)->f = ((b)->f == RLIM_INFINITY || \
     48 	     ((b)->f & 0x8000000000000000UL) != 0) ? \
     49     LINUX_RLIM_INFINITY : (b)->f
     50 #else
     51 #define bsd_to_linux_rlimit1(l, b, f) \
     52     (l)->f = ((b)->f == RLIM_INFINITY || \
     53 	     ((b)->f & 0xffffffff00000000ULL) != 0) ? \
     54     LINUX_RLIM_INFINITY : (int32_t)(b)->f
     55 #endif
     56 #define bsd_to_linux_rlimit(l, b) \
     57     bsd_to_linux_rlimit1(l, b, rlim_cur); \
     58     bsd_to_linux_rlimit1(l, b, rlim_max)
     59 
     60 #define linux_to_bsd_rlimit1(b, l, f) \
     61     (b)->f = (l)->f == LINUX_RLIM_INFINITY ? RLIM_INFINITY : (l)->f
     62 #define linux_to_bsd_rlimit(b, l) \
     63     linux_to_bsd_rlimit1(b, l, rlim_cur); \
     64     linux_to_bsd_rlimit1(b, l, rlim_max)
     65 
     66 static int
     67 linux_to_bsd_limit(lim)
     68 	int lim;
     69 {
     70 	switch (lim) {
     71 	case LINUX_RLIMIT_CPU:
     72 		return RLIMIT_CPU;
     73 	case LINUX_RLIMIT_FSIZE:
     74 		return RLIMIT_FSIZE;
     75 	case LINUX_RLIMIT_DATA:
     76 		return RLIMIT_DATA;
     77 	case LINUX_RLIMIT_STACK:
     78 		return RLIMIT_STACK;
     79 	case LINUX_RLIMIT_CORE:
     80 		return RLIMIT_CORE;
     81 	case LINUX_RLIMIT_RSS:
     82 		return RLIMIT_RSS;
     83 	case LINUX_RLIMIT_NPROC:
     84 		return RLIMIT_NPROC;
     85 	case LINUX_RLIMIT_NOFILE:
     86 		return RLIMIT_NOFILE;
     87 	case LINUX_RLIMIT_MEMLOCK:
     88 		return RLIMIT_MEMLOCK;
     89 	case LINUX_RLIMIT_AS:
     90 	case LINUX_RLIMIT_LOCKS:
     91 		return -EOPNOTSUPP;
     92 	default:
     93 		return -EINVAL;
     94 	}
     95 }
     96 
     97 
     98 #endif /* _LINUX_LIMIT_H_ */
     99