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freebsd_misc.c revision 1.4.14.2 
      1 /*	$NetBSD: freebsd_misc.c,v 1.4.14.2 2000/12/08 09:08:12 bouyer Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Frank van der Linden
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed for the NetBSD Project
     18  *      by Frank van der Linden
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 /*
     35  * FreeBSD compatibility module. Try to deal with various FreeBSD system calls.
     36  */
     37 
     38 #if defined(_KERNEL) && !defined(_LKM)
     39 #include "opt_ntp.h"
     40 #endif
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/proc.h>
     45 #include <sys/mount.h>
     46 #include <sys/signal.h>
     47 #include <sys/signalvar.h>
     48 
     49 #include <sys/syscallargs.h>
     50 
     51 #include <compat/freebsd/freebsd_syscallargs.h>
     52 #include <compat/common/compat_util.h>
     53 #include <compat/freebsd/freebsd_rtprio.h>
     54 #include <compat/freebsd/freebsd_timex.h>
     55 #include <compat/freebsd/freebsd_signal.h>
     56 
     57 int
     58 freebsd_sys_msync(p, v, retval)
     59 	struct proc *p;
     60 	void *v;
     61 	register_t *retval;
     62 {
     63 	struct freebsd_sys_msync_args /* {
     64 		syscallarg(caddr_t) addr;
     65 		syscallarg(size_t) len;
     66 		syscallarg(int) flags;
     67 	} */ *uap = v;
     68 	struct sys___msync13_args bma;
     69 
     70 	/*
     71 	 * FreeBSD-2.0-RELEASE's msync(2) is compatible with NetBSD's.
     72 	 * FreeBSD-2.0.5-RELEASE's msync(2) has addtional argument `flags',
     73 	 * but syscall number is not changed. :-<
     74 	 */
     75 	SCARG(&bma, addr) = SCARG(uap, addr);
     76 	SCARG(&bma, len) = SCARG(uap, len);
     77 	SCARG(&bma, flags) = SCARG(uap, flags);
     78 	return sys___msync13(p, &bma, retval);
     79 }
     80 
     81 /* just a place holder */
     82 
     83 int
     84 freebsd_sys_rtprio(p, v, retval)
     85 	struct proc *p;
     86 	void *v;
     87 	register_t *retval;
     88 {
     89 #ifdef notyet
     90 	struct freebsd_sys_rtprio_args /* {
     91 		syscallarg(int) function;
     92 		syscallarg(pid_t) pid;
     93 		syscallarg(struct freebsd_rtprio *) rtp;
     94 	} */ *uap = v;
     95 #endif
     96 
     97 	return ENOSYS;	/* XXX */
     98 }
     99 
    100 #ifdef NTP
    101 int
    102 freebsd_ntp_adjtime(p, v, retval)
    103 	struct proc *p;
    104 	void *v;
    105 	register_t *retval;
    106 {
    107 #ifdef notyet
    108 	struct freebsd_ntp_adjtime_args /* {
    109 		syscallarg(struct freebsd_timex *) tp;
    110 	} */ *uap = v;
    111 #endif
    112 
    113 	return ENOSYS;	/* XXX */
    114 }
    115 #endif
    116 
    117 int
    118 freebsd_sys_sigaction4(p, v, retval)
    119 	struct proc *p;
    120 	void *v;
    121 	register_t *retval;
    122 {
    123 	struct freebsd_sys_sigaction4_args /* {
    124 		syscallarg(int) signum;
    125 		syscallarg(const struct freebsd_sigaction4 *) nsa;
    126 		syscallarg(struct freebsd_sigaction4 *) osa;
    127 	} */ *uap = v;
    128 	struct freebsd_sigaction4 nesa, oesa;
    129 	struct sigaction nbsa, obsa;
    130 	int error;
    131 
    132 	if (SCARG(uap, nsa)) {
    133 		error = copyin(SCARG(uap, nsa), &nesa, sizeof(nesa));
    134 		if (error)
    135 			return (error);
    136 		nbsa.sa_handler = nesa.sa_handler;
    137 		nbsa.sa_mask    = nesa.sa_mask;
    138 		nbsa.sa_flags   = nesa.sa_flags;
    139 	}
    140 	error = sigaction1(p, SCARG(uap, signum),
    141 	    SCARG(uap, nsa) ? &nbsa : 0, SCARG(uap, osa) ? &obsa : 0);
    142 	if (error)
    143 		return (error);
    144 	if (SCARG(uap, osa)) {
    145 		oesa.sa_handler = obsa.sa_handler;
    146 		oesa.sa_mask    = obsa.sa_mask;
    147 		oesa.sa_flags   = obsa.sa_flags;
    148 		error = copyout(&oesa, SCARG(uap, osa), sizeof(oesa));
    149 		if (error)
    150 			return (error);
    151 	}
    152 	return (0);
    153 }
    154