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netbsd32_compat_50.c revision 1.18
      1 /*	$NetBSD: netbsd32_compat_50.c,v 1.18 2011/03/06 17:08:34 bouyer Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 #include <sys/cdefs.h>
     39 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_50.c,v 1.18 2011/03/06 17:08:34 bouyer Exp $");
     40 
     41 #if defined(_KERNEL_OPT)
     42 #include "opt_sysv.h"
     43 #endif
     44 
     45 #include <sys/param.h>
     46 #include <sys/systm.h>
     47 #include <sys/mount.h>
     48 #include <sys/socket.h>
     49 #include <sys/socketvar.h>
     50 #include <sys/stat.h>
     51 #include <sys/time.h>
     52 #include <sys/ktrace.h>
     53 #include <sys/eventvar.h>
     54 #include <sys/resourcevar.h>
     55 #include <sys/vnode.h>
     56 #include <sys/file.h>
     57 #include <sys/filedesc.h>
     58 #include <sys/poll.h>
     59 #include <sys/namei.h>
     60 #include <sys/statvfs.h>
     61 #include <sys/syscallargs.h>
     62 #include <sys/proc.h>
     63 #include <sys/dirent.h>
     64 #include <sys/kauth.h>
     65 #include <sys/vfs_syscalls.h>
     66 #include <sys/ipc.h>
     67 #include <sys/msg.h>
     68 #include <sys/sem.h>
     69 #include <sys/shm.h>
     70 
     71 #include <compat/netbsd32/netbsd32.h>
     72 #include <compat/netbsd32/netbsd32_syscallargs.h>
     73 #include <compat/netbsd32/netbsd32_conv.h>
     74 #include <compat/sys/mount.h>
     75 #include <compat/sys/time.h>
     76 
     77 
     78 /*
     79  * Common routine to set access and modification times given a vnode.
     80  */
     81 static int
     82 get_utimes32(const netbsd32_timeval50p_t *tptr, struct timeval *tv,
     83     struct timeval **tvp)
     84 {
     85 	int error;
     86 	struct netbsd32_timeval50 tv32[2];
     87 
     88 	if (tptr == NULL) {
     89 		*tvp = NULL;
     90 		return 0;
     91 	}
     92 
     93 	error = copyin(tptr, tv32, sizeof(tv32));
     94 	if (error)
     95 		return error;
     96 	netbsd32_to_timeval50(&tv32[0], &tv[0]);
     97 	netbsd32_to_timeval50(&tv32[1], &tv[1]);
     98 
     99 	*tvp = tv;
    100 	return 0;
    101 }
    102 
    103 int
    104 compat_50_netbsd32_mknod(struct lwp *l,
    105     const struct compat_50_netbsd32_mknod_args *uap, register_t *retval)
    106 {
    107 	/* {
    108 		syscallarg(netbsd32_charp) path;
    109 		syscallarg(mode_t) mode;
    110 		syscallarg(uint32_t) dev;
    111 	} */
    112 	return do_sys_mknod(l, SCARG_P32(uap, path), SCARG(uap, mode),
    113 	    SCARG(uap, dev), retval, UIO_USERSPACE);
    114 }
    115 
    116 int
    117 compat_50_netbsd32_select(struct lwp *l,
    118     const struct compat_50_netbsd32_select_args *uap, register_t *retval)
    119 {
    120 	/* {
    121 		syscallarg(int) nd;
    122 		syscallarg(netbsd32_fd_setp_t) in;
    123 		syscallarg(netbsd32_fd_setp_t) ou;
    124 		syscallarg(netbsd32_fd_setp_t) ex;
    125 		syscallarg(netbsd32_timeval50p_t) tv;
    126 	} */
    127 	int error;
    128 	struct netbsd32_timeval50 tv32;
    129 	struct timespec ats, *ts = NULL;
    130 
    131 	if (SCARG_P32(uap, tv)) {
    132 		error = copyin(SCARG_P32(uap, tv), &tv32, sizeof(tv32));
    133 		if (error != 0)
    134 			return error;
    135 		ats.tv_sec = tv32.tv_sec;
    136 		ats.tv_nsec = tv32.tv_usec * 1000;
    137 		ts = &ats;
    138 	}
    139 
    140 	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
    141 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, NULL);
    142 	return 0;
    143 }
    144 
    145 int
    146 compat_50_netbsd32_gettimeofday(struct lwp *l,
    147     const struct compat_50_netbsd32_gettimeofday_args *uap, register_t *retval)
    148 {
    149 	/* {
    150 		syscallarg(netbsd32_timeval50p_t) tp;
    151 		syscallarg(netbsd32_timezonep_t) tzp;
    152 	} */
    153 	struct timeval atv;
    154 	struct netbsd32_timeval50 tv32;
    155 	int error = 0;
    156 	struct netbsd32_timezone tzfake;
    157 
    158 	if (SCARG_P32(uap, tp)) {
    159 		microtime(&atv);
    160 		netbsd32_from_timeval50(&atv, &tv32);
    161 		error = copyout(&tv32, SCARG_P32(uap, tp), sizeof(tv32));
    162 		if (error)
    163 			return error;
    164 	}
    165 	if (SCARG_P32(uap, tzp)) {
    166 		/*
    167 		 * NetBSD has no kernel notion of time zone, so we just
    168 		 * fake up a timezone struct and return it if demanded.
    169 		 */
    170 		tzfake.tz_minuteswest = 0;
    171 		tzfake.tz_dsttime = 0;
    172 		error = copyout(&tzfake, SCARG_P32(uap, tzp), sizeof(tzfake));
    173 	}
    174 	return error;
    175 }
    176 
    177 int
    178 compat_50_netbsd32_settimeofday(struct lwp *l,
    179     const struct compat_50_netbsd32_settimeofday_args *uap, register_t *retval)
    180 {
    181 	/* {
    182 		syscallarg(const netbsd32_timeval50p_t) tv;
    183 		syscallarg(const netbsd32_timezonep_t) tzp;
    184 	} */
    185 	struct netbsd32_timeval50 atv32;
    186 	struct timeval atv;
    187 	struct timespec ats;
    188 	int error;
    189 	struct proc *p = l->l_proc;
    190 
    191 	/* Verify all parameters before changing time. */
    192 
    193 	/*
    194 	 * NetBSD has no kernel notion of time zone, and only an
    195 	 * obsolete program would try to set it, so we log a warning.
    196 	 */
    197 	if (SCARG_P32(uap, tzp))
    198 		printf("pid %d attempted to set the "
    199 		    "(obsolete) kernel time zone\n", p->p_pid);
    200 
    201 	if (SCARG_P32(uap, tv) == 0)
    202 		return 0;
    203 
    204 	if ((error = copyin(SCARG_P32(uap, tv), &atv32, sizeof(atv32))) != 0)
    205 		return error;
    206 
    207 	netbsd32_to_timeval50(&atv32, &atv);
    208 	TIMEVAL_TO_TIMESPEC(&atv, &ats);
    209 	return settime(p, &ats);
    210 }
    211 
    212 int
    213 compat_50_netbsd32_utimes(struct lwp *l,
    214     const struct compat_50_netbsd32_utimes_args *uap, register_t *retval)
    215 {
    216 	/* {
    217 		syscallarg(const netbsd32_charp) path;
    218 		syscallarg(const netbsd32_timeval50p_t) tptr;
    219 	} */
    220 	int error;
    221 	struct timeval tv[2], *tvp;
    222 
    223 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    224 	if (error != 0)
    225 		return error;
    226 
    227 	return do_sys_utimes(l, NULL, SCARG_P32(uap, path), FOLLOW,
    228 	    tvp, UIO_SYSSPACE);
    229 }
    230 
    231 int
    232 compat_50_netbsd32_adjtime(struct lwp *l,
    233     const struct compat_50_netbsd32_adjtime_args *uap, register_t *retval)
    234 {
    235 	/* {
    236 		syscallarg(const netbsd32_timeval50p_t) delta;
    237 		syscallarg(netbsd32_timeval50p_t) olddelta;
    238 	} */
    239 	struct netbsd32_timeval50 atv;
    240 	int error;
    241 
    242 	extern int time_adjusted;     /* in kern_ntptime.c */
    243 	extern int64_t time_adjtime;  /* in kern_ntptime.c */
    244 
    245 	if ((error = kauth_authorize_system(l->l_cred,
    246 	    KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_ADJTIME, NULL, NULL,
    247 	    NULL)) != 0)
    248 		return (error);
    249 
    250 	if (SCARG_P32(uap, olddelta)) {
    251 		atv.tv_sec = time_adjtime / 1000000;
    252 		atv.tv_usec = time_adjtime % 1000000;
    253 		if (atv.tv_usec < 0) {
    254 			atv.tv_usec += 1000000;
    255 			atv.tv_sec--;
    256 		}
    257 		(void) copyout(&atv,
    258 			       SCARG_P32(uap, olddelta),
    259 			       sizeof(atv));
    260 		if (error)
    261 			return (error);
    262 	}
    263 
    264 	if (SCARG_P32(uap, delta)) {
    265 		error = copyin(SCARG_P32(uap, delta), &atv,
    266 			       sizeof(struct timeval));
    267 		if (error)
    268 			return (error);
    269 
    270 		time_adjtime = (int64_t)atv.tv_sec * 1000000 + atv.tv_usec;
    271 
    272 		if (time_adjtime)
    273 			/* We need to save the system time during shutdown */
    274 			time_adjusted |= 1;
    275 	}
    276 
    277 	return 0;
    278 }
    279 
    280 int
    281 compat_50_netbsd32_futimes(struct lwp *l,
    282     const struct compat_50_netbsd32_futimes_args *uap, register_t *retval)
    283 {
    284 	/* {
    285 		syscallarg(int) fd;
    286 		syscallarg(const netbsd32_timeval50p_t) tptr;
    287 	} */
    288 	int error;
    289 	file_t *fp;
    290 	struct timeval tv[2], *tvp;
    291 
    292 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    293 	if (error != 0)
    294 		return error;
    295 
    296 	/* fd_getvnode() will use the descriptor for us */
    297 	if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
    298 		return error;
    299 
    300 	error = do_sys_utimes(l, fp->f_data, NULL, 0, tvp, UIO_SYSSPACE);
    301 
    302 	fd_putfile(SCARG(uap, fd));
    303 	return error;
    304 }
    305 
    306 int
    307 compat_50_netbsd32_clock_gettime(struct lwp *l,
    308     const struct compat_50_netbsd32_clock_gettime_args *uap, register_t *retval)
    309 {
    310 	/* {
    311 		syscallarg(netbsd32_clockid_t) clock_id;
    312 		syscallarg(netbsd32_timespec50p_t) tp;
    313 	} */
    314 	int error;
    315 	struct timespec ats;
    316 	struct netbsd32_timespec50 ts32;
    317 
    318 	error = clock_gettime1(SCARG(uap, clock_id), &ats);
    319 	if (error != 0)
    320 		return error;
    321 
    322 	netbsd32_from_timespec50(&ats, &ts32);
    323 	return copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32));
    324 }
    325 
    326 int
    327 compat_50_netbsd32_clock_settime(struct lwp *l,
    328     const struct compat_50_netbsd32_clock_settime_args *uap, register_t *retval)
    329 {
    330 	/* {
    331 		syscallarg(netbsd32_clockid_t) clock_id;
    332 		syscallarg(const netbsd32_timespec50p_t) tp;
    333 	} */
    334 	struct netbsd32_timespec50 ts32;
    335 	struct timespec ats;
    336 	int error;
    337 
    338 	if ((error = copyin(SCARG_P32(uap, tp), &ts32, sizeof(ts32))) != 0)
    339 		return (error);
    340 
    341 	netbsd32_to_timespec50(&ts32, &ats);
    342 	return clock_settime1(l->l_proc, SCARG(uap, clock_id), &ats, true);
    343 }
    344 
    345 int
    346 compat_50_netbsd32_clock_getres(struct lwp *l,
    347     const struct compat_50_netbsd32_clock_getres_args *uap, register_t *retval)
    348 {
    349 	/* {
    350 		syscallarg(netbsd32_clockid_t) clock_id;
    351 		syscallarg(netbsd32_timespec50p_t) tp;
    352 	} */
    353 	struct netbsd32_timespec50 ts32;
    354 	struct timespec ts;
    355 	int error = 0;
    356 
    357 	error = clock_getres1(SCARG(uap, clock_id), &ts);
    358 	if (error != 0)
    359 		return error;
    360 
    361 	if (SCARG_P32(uap, tp)) {
    362 		netbsd32_from_timespec50(&ts, &ts32);
    363 		error = copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32));
    364 	}
    365 
    366 	return error;
    367 }
    368 
    369 int
    370 compat_50_netbsd32_timer_settime(struct lwp *l,
    371     const struct compat_50_netbsd32_timer_settime_args *uap, register_t *retval)
    372 {
    373 	/* {
    374 		syscallarg(netbsd32_timer_t) timerid;
    375 		syscallarg(int) flags;
    376 		syscallarg(const netbsd32_itimerspec50p_t) value;
    377 		syscallarg(netbsd32_itimerspec50p_t) ovalue;
    378 	} */
    379 	int error;
    380 	struct itimerspec value, ovalue, *ovp = NULL;
    381 	struct netbsd32_itimerspec50 its32;
    382 
    383 	if ((error = copyin(SCARG_P32(uap, value), &its32, sizeof(its32))) != 0)
    384 		return (error);
    385 	netbsd32_to_timespec50(&its32.it_interval, &value.it_interval);
    386 	netbsd32_to_timespec50(&its32.it_value, &value.it_value);
    387 
    388 	if (SCARG_P32(uap, ovalue))
    389 		ovp = &ovalue;
    390 
    391 	if ((error = dotimer_settime(SCARG(uap, timerid), &value, ovp,
    392 	    SCARG(uap, flags), l->l_proc)) != 0)
    393 		return error;
    394 
    395 	if (ovp) {
    396 		netbsd32_from_timespec50(&ovp->it_interval, &its32.it_interval);
    397 		netbsd32_from_timespec50(&ovp->it_value, &its32.it_value);
    398 		return copyout(&its32, SCARG_P32(uap, ovalue), sizeof(its32));
    399 	}
    400 	return 0;
    401 }
    402 
    403 int
    404 compat_50_netbsd32_timer_gettime(struct lwp *l, const struct compat_50_netbsd32_timer_gettime_args *uap, register_t *retval)
    405 {
    406 	/* {
    407 		syscallarg(netbsd32_timer_t) timerid;
    408 		syscallarg(netbsd32_itimerspec50p_t) value;
    409 	} */
    410 	int error;
    411 	struct itimerspec its;
    412 	struct netbsd32_itimerspec50 its32;
    413 
    414 	if ((error = dotimer_gettime(SCARG(uap, timerid), l->l_proc,
    415 	    &its)) != 0)
    416 		return error;
    417 
    418 	netbsd32_from_timespec50(&its.it_interval, &its32.it_interval);
    419 	netbsd32_from_timespec50(&its.it_value, &its32.it_value);
    420 
    421 	return copyout(&its32, SCARG_P32(uap, value), sizeof(its32));
    422 }
    423 
    424 int
    425 compat_50_netbsd32_nanosleep(struct lwp *l,
    426     const struct compat_50_netbsd32_nanosleep_args *uap, register_t *retval)
    427 {
    428 	/* {
    429 		syscallarg(const netbsd32_timespec50p_t) rqtp;
    430 		syscallarg(netbsd32_timespecp_t) rmtp;
    431 	} */
    432 	struct netbsd32_timespec50 ts32;
    433 	struct timespec rqt, rmt;
    434 	int error, error1;
    435 
    436 	error = copyin(SCARG_P32(uap, rqtp), &ts32, sizeof(ts32));
    437 	if (error)
    438 		return (error);
    439 	netbsd32_to_timespec50(&ts32, &rqt);
    440 
    441 	error = nanosleep1(l, &rqt, SCARG_P32(uap, rmtp) ? &rmt : NULL);
    442 	if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR))
    443 		return error;
    444 
    445 	netbsd32_from_timespec50(&rmt, &ts32);
    446 	error1 = copyout(&ts32, SCARG_P32(uap,rmtp), sizeof(ts32));
    447 	return error1 ? error1 : error;
    448 }
    449 
    450 static int
    451 compat_50_netbsd32_sigtimedwait_put_info(const void *src, void *dst, size_t size)
    452 {
    453 	const siginfo_t *info = src;
    454 	siginfo32_t info32;
    455 
    456 	netbsd32_si_to_si32(&info32, info);
    457 
    458 	return copyout(&info32, dst, sizeof(info32));
    459 }
    460 
    461 static int
    462 compat_50_netbsd32_sigtimedwait_fetch_timeout(const void *src, void *dst, size_t size)
    463 {
    464 	struct timespec *ts = dst;
    465 	struct netbsd32_timespec50 ts32;
    466 	int error;
    467 
    468 	error = copyin(src, &ts32, sizeof(ts32));
    469 	if (error)
    470 		return error;
    471 
    472 	netbsd32_to_timespec50(&ts32, ts);
    473 	return 0;
    474 }
    475 
    476 static int
    477 compat_50_netbsd32_sigtimedwait_put_timeout(const void *src, void *dst, size_t size)
    478 {
    479 	const struct timespec *ts = src;
    480 	struct netbsd32_timespec50 ts32;
    481 
    482 	netbsd32_from_timespec50(ts, &ts32);
    483 
    484 	return copyout(&ts32, dst, sizeof(ts32));
    485 }
    486 
    487 int
    488 compat_50_netbsd32___sigtimedwait(struct lwp *l,
    489     const struct compat_50_netbsd32___sigtimedwait_args *uap, register_t *retval)
    490 {
    491 	/* {
    492 		syscallarg(netbsd32_sigsetp_t) set;
    493 		syscallarg(netbsd32_siginfop_t) info;
    494 		syscallarg(netbsd32_timespec50p_t) timeout;
    495 	} */
    496 	struct sys_____sigtimedwait50_args ua;
    497 	int res;
    498 
    499 	NETBSD32TOP_UAP(set, const sigset_t);
    500 	NETBSD32TOP_UAP(info, siginfo_t);
    501 	NETBSD32TOP_UAP(timeout, struct timespec);
    502 
    503 	res = sigtimedwait1(l, &ua, retval,
    504 	    compat_50_netbsd32_sigtimedwait_put_info,
    505 	    compat_50_netbsd32_sigtimedwait_fetch_timeout,
    506 	    compat_50_netbsd32_sigtimedwait_put_timeout);
    507 	if (!res)
    508 		*retval = 0; /* XXX NetBSD<=5 was not POSIX compliant */
    509 	return res;
    510 }
    511 
    512 int
    513 compat_50_netbsd32_lutimes(struct lwp *l,
    514     const struct compat_50_netbsd32_lutimes_args *uap, register_t *retval)
    515 {
    516 	/* {
    517 		syscallarg(const netbsd32_charp) path;
    518 		syscallarg(const netbsd32_timeval50p_t) tptr;
    519 	} */
    520 	int error;
    521 	struct timeval tv[2], *tvp;
    522 
    523 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    524 	if (error != 0)
    525 		return error;
    526 
    527 	return do_sys_utimes(l, NULL, SCARG_P32(uap, path), NOFOLLOW,
    528 	    tvp, UIO_SYSSPACE);
    529 }
    530 
    531 int
    532 compat_50_netbsd32__lwp_park(struct lwp *l,
    533     const struct compat_50_netbsd32__lwp_park_args *uap, register_t *retval)
    534 {
    535 	/* {
    536 		syscallarg(const netbsd32_timespec50p) ts;
    537 		syscallarg(lwpid_t) unpark;
    538 		syscallarg(netbsd32_voidp) hint;
    539 		syscallarg(netbsd32_voidp) unparkhint;
    540 	} */
    541 	struct timespec ts, *tsp;
    542 	struct netbsd32_timespec50 ts32;
    543 	int error;
    544 
    545 	if (SCARG_P32(uap, ts) == NULL)
    546 		tsp = NULL;
    547 	else {
    548 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32);
    549 		if (error != 0)
    550 			return error;
    551 		netbsd32_to_timespec50(&ts32, &ts);
    552 		tsp = &ts;
    553 	}
    554 
    555 	if (SCARG(uap, unpark) != 0) {
    556 		error = lwp_unpark(SCARG(uap, unpark),
    557 		    SCARG_P32(uap, unparkhint));
    558 		if (error != 0)
    559 			return error;
    560 	}
    561 
    562 	return lwp_park(tsp, SCARG_P32(uap, hint));
    563 	return 0;
    564 }
    565 
    566 static int
    567 netbsd32_kevent_fetch_timeout(const void *src, void *dest, size_t length)
    568 {
    569 	struct netbsd32_timespec50 ts32;
    570 	int error;
    571 
    572 	KASSERT(length == sizeof(struct timespec50));
    573 
    574 	error = copyin(src, &ts32, sizeof(ts32));
    575 	if (error)
    576 		return error;
    577 	netbsd32_to_timespec50(&ts32, (struct timespec *)dest);
    578 	return 0;
    579 }
    580 
    581 static int
    582 netbsd32_kevent_fetch_changes(void *private, const struct kevent *changelist,
    583     struct kevent *changes, size_t index, int n)
    584 {
    585 	const struct netbsd32_kevent *src =
    586 	    (const struct netbsd32_kevent *)changelist;
    587 	struct netbsd32_kevent *kev32, *changes32 = private;
    588 	int error, i;
    589 
    590 	error = copyin(src + index, changes32, n * sizeof(*changes32));
    591 	if (error)
    592 		return error;
    593 	for (i = 0, kev32 = changes32; i < n; i++, kev32++, changes++)
    594 		netbsd32_to_kevent(kev32, changes);
    595 	return 0;
    596 }
    597 
    598 static int
    599 netbsd32_kevent_put_events(void *private, struct kevent *events,
    600     struct kevent *eventlist, size_t index, int n)
    601 {
    602 	struct netbsd32_kevent *kev32, *events32 = private;
    603 	int i;
    604 
    605 	for (i = 0, kev32 = events32; i < n; i++, kev32++, events++)
    606 		netbsd32_from_kevent(events, kev32);
    607 	kev32 = (struct netbsd32_kevent *)eventlist;
    608 	return  copyout(events32, kev32, n * sizeof(*events32));
    609 }
    610 
    611 int
    612 compat_50_netbsd32_kevent(struct lwp *l,
    613     const struct compat_50_netbsd32_kevent_args *uap, register_t *retval)
    614 {
    615 	/* {
    616 		syscallarg(int) fd;
    617 		syscallarg(netbsd32_keventp_t) changelist;
    618 		syscallarg(netbsd32_size_t) nchanges;
    619 		syscallarg(netbsd32_keventp_t) eventlist;
    620 		syscallarg(netbsd32_size_t) nevents;
    621 		syscallarg(netbsd32_timespec50p_t) timeout;
    622 	} */
    623 	int error;
    624 	size_t maxalloc, nchanges, nevents;
    625 	struct kevent_ops netbsd32_kevent_ops = {
    626 		keo_fetch_timeout: netbsd32_kevent_fetch_timeout,
    627 		keo_fetch_changes: netbsd32_kevent_fetch_changes,
    628 		keo_put_events: netbsd32_kevent_put_events,
    629 	};
    630 
    631 	nchanges = SCARG(uap, nchanges);
    632 	nevents = SCARG(uap, nevents);
    633 	maxalloc = MIN(KQ_NEVENTS, MAX(nchanges, nevents));
    634 	netbsd32_kevent_ops.keo_private =
    635 	    kmem_alloc(maxalloc * sizeof(struct netbsd32_kevent), KM_SLEEP);
    636 
    637 	error = kevent1(retval, SCARG(uap, fd),
    638 	    NETBSD32PTR64(SCARG(uap, changelist)), nchanges,
    639 	    NETBSD32PTR64(SCARG(uap, eventlist)), nevents,
    640 	    NETBSD32PTR64(SCARG(uap, timeout)), &netbsd32_kevent_ops);
    641 
    642 	kmem_free(netbsd32_kevent_ops.keo_private,
    643 	    maxalloc * sizeof(struct netbsd32_kevent));
    644 	return error;
    645 }
    646 
    647 int
    648 compat_50_netbsd32_pselect(struct lwp *l,
    649     const struct compat_50_netbsd32_pselect_args *uap, register_t *retval)
    650 {
    651 	/* {
    652 		syscallarg(int) nd;
    653 		syscallarg(netbsd32_fd_setp_t) in;
    654 		syscallarg(netbsd32_fd_setp_t) ou;
    655 		syscallarg(netbsd32_fd_setp_t) ex;
    656 		syscallarg(const netbsd32_timespec50p_t) ts;
    657 		syscallarg(const netbsd32_sigsetp_t) mask;
    658 	} */
    659 	int error;
    660 	struct netbsd32_timespec50 ts32;
    661 	struct timespec ats, *ts = NULL;
    662 	sigset_t amask, *mask = NULL;
    663 
    664 	if (SCARG_P32(uap, ts)) {
    665 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
    666 		if (error != 0)
    667 			return error;
    668 		netbsd32_to_timespec50(&ts32, &ats);
    669 		ts = &ats;
    670 	}
    671 	if (SCARG_P32(uap, mask)) {
    672 		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
    673 		if (error != 0)
    674 			return error;
    675 		mask = &amask;
    676 	}
    677 
    678 	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
    679 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, mask);
    680 	return 0;
    681 }
    682 
    683 int
    684 compat_50_netbsd32_pollts(struct lwp *l,
    685     const struct compat_50_netbsd32_pollts_args *uap, register_t *retval)
    686 {
    687 	/* {
    688 		syscallarg(struct netbsd32_pollfdp_t) fds;
    689 		syscallarg(u_int) nfds;
    690 		syscallarg(const netbsd32_timespec50p_t) ts;
    691 		syscallarg(const netbsd32_sigsetp_t) mask;
    692 	} */
    693 	int error;
    694 	struct netbsd32_timespec50 ts32;
    695 	struct timespec ats, *ts = NULL;
    696 	sigset_t amask, *mask = NULL;
    697 
    698 	if (SCARG_P32(uap, ts)) {
    699 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
    700 		if (error != 0)
    701 			return error;
    702 		netbsd32_to_timespec50(&ts32, &ats);
    703 		ts = &ats;
    704 	}
    705 	if (NETBSD32PTR64( SCARG(uap, mask))) {
    706 		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
    707 		if (error != 0)
    708 			return error;
    709 		mask = &amask;
    710 	}
    711 
    712 	return pollcommon(retval, SCARG_P32(uap, fds),
    713 	    SCARG(uap, nfds), ts, mask);
    714 }
    715 
    716 int
    717 compat_50_netbsd32___stat30(struct lwp *l,
    718     const struct compat_50_netbsd32___stat30_args *uap, register_t *retval)
    719 {
    720 	/* {
    721 		syscallarg(const netbsd32_charp) path;
    722 		syscallarg(netbsd32_stat50p_t) ub;
    723 	} */
    724 	struct netbsd32_stat50 sb32;
    725 	struct stat sb;
    726 	int error;
    727 	const char *path;
    728 
    729 	path = SCARG_P32(uap, path);
    730 
    731 	error = do_sys_stat(path, FOLLOW, &sb);
    732 	if (error)
    733 		return error;
    734 	netbsd32_from___stat50(&sb, &sb32);
    735 	error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
    736 	return error;
    737 }
    738 
    739 int
    740 compat_50_netbsd32___fstat30(struct lwp *l,
    741     const struct compat_50_netbsd32___fstat30_args *uap, register_t *retval)
    742 {
    743 	/* {
    744 		syscallarg(int) fd;
    745 		syscallarg(netbsd32_stat50p_t) sb;
    746 	} */
    747 	struct netbsd32_stat50 sb32;
    748 	struct stat ub;
    749 	int error;
    750 
    751 	error = do_sys_fstat(SCARG(uap, fd), &ub);
    752 	if (error == 0) {
    753 		netbsd32_from___stat50(&ub, &sb32);
    754 		error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32));
    755 	}
    756 	return error;
    757 }
    758 
    759 int
    760 compat_50_netbsd32___lstat30(struct lwp *l,
    761     const struct compat_50_netbsd32___lstat30_args *uap, register_t *retval)
    762 {
    763 	/* {
    764 		syscallarg(const netbsd32_charp) path;
    765 		syscallarg(netbsd32_stat50p_t) ub;
    766 	} */
    767 	struct netbsd32_stat50 sb32;
    768 	struct stat sb;
    769 	int error;
    770 	const char *path;
    771 
    772 	path = SCARG_P32(uap, path);
    773 
    774 	error = do_sys_stat(path, NOFOLLOW, &sb);
    775 	if (error)
    776 		return error;
    777 	netbsd32_from___stat50(&sb, &sb32);
    778 	error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
    779 	return error;
    780 }
    781 
    782 int
    783 compat_50_netbsd32___fhstat40(struct lwp *l, const struct compat_50_netbsd32___fhstat40_args *uap, register_t *retval)
    784 {
    785 	/* {
    786 		syscallarg(const netbsd32_pointer_t) fhp;
    787 		syscallarg(netbsd32_size_t) fh_size;
    788 		syscallarg(netbsd32_stat50p_t) sb;
    789 	} */
    790 	struct stat sb;
    791 	struct netbsd32_stat50 sb32;
    792 	int error;
    793 
    794 	error = do_fhstat(l, SCARG_P32(uap, fhp), SCARG(uap, fh_size), &sb);
    795 	if (error != 0) {
    796 		netbsd32_from___stat50(&sb, &sb32);
    797 		error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb));
    798 	}
    799 	return error;
    800 }
    801 
    802 int
    803 compat_50_netbsd32_wait4(struct lwp *l, const struct compat_50_netbsd32_wait4_args *uap, register_t *retval)
    804 {
    805 	/* {
    806 		syscallarg(int) pid;
    807 		syscallarg(netbsd32_intp) status;
    808 		syscallarg(int) options;
    809 		syscallarg(netbsd32_rusage50p_t) rusage;
    810 	} */
    811 	int error, status, pid = SCARG(uap, pid);
    812 	struct netbsd32_rusage50 ru32;
    813 	struct rusage ru;
    814 
    815 	error = do_sys_wait(&pid, &status, SCARG(uap, options),
    816 	    SCARG_P32(uap, rusage) != NULL ? &ru : NULL);
    817 
    818 	retval[0] = pid;
    819 	if (pid == 0)
    820 		return error;
    821 
    822 	if (SCARG_P32(uap, rusage)) {
    823 		netbsd32_from_rusage50(&ru, &ru32);
    824 		error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
    825 	}
    826 
    827 	if (error == 0 && SCARG_P32(uap, status))
    828 		error = copyout(&status, SCARG_P32(uap, status), sizeof(status));
    829 
    830 	return error;
    831 }
    832 
    833 
    834 int
    835 compat_50_netbsd32_getrusage(struct lwp *l, const struct compat_50_netbsd32_getrusage_args *uap, register_t *retval)
    836 {
    837 	/* {
    838 		syscallarg(int) who;
    839 		syscallarg(netbsd32_rusage50p_t) rusage;
    840 	} */
    841 	struct proc *p = l->l_proc;
    842 	struct rusage *rup;
    843 	struct netbsd32_rusage50 ru;
    844 
    845 	switch (SCARG(uap, who)) {
    846 
    847 	case RUSAGE_SELF:
    848 		rup = &p->p_stats->p_ru;
    849 		mutex_enter(p->p_lock);
    850 		calcru(p, &rup->ru_utime, &rup->ru_stime, NULL, NULL);
    851 		mutex_exit(p->p_lock);
    852 		break;
    853 
    854 	case RUSAGE_CHILDREN:
    855 		rup = &p->p_stats->p_cru;
    856 		break;
    857 
    858 	default:
    859 		return (EINVAL);
    860 	}
    861 	netbsd32_from_rusage50(rup, &ru);
    862 	return copyout(&ru, SCARG_P32(uap, rusage), sizeof(ru));
    863 }
    864 
    865 int
    866 compat_50_netbsd32_setitimer(struct lwp *l,
    867     const struct compat_50_netbsd32_setitimer_args *uap, register_t *retval)
    868 {
    869 	/* {
    870 		syscallarg(int) which;
    871 		syscallarg(const netbsd32_itimerval50p_t) itv;
    872 		syscallarg(netbsd32_itimerval50p_t) oitv;
    873 	} */
    874 	struct proc *p = l->l_proc;
    875 	struct netbsd32_itimerval50 s32it, *itv32;
    876 	int which = SCARG(uap, which);
    877 	struct compat_50_netbsd32_getitimer_args getargs;
    878 	struct itimerval aitv;
    879 	int error;
    880 
    881 	if ((u_int)which > ITIMER_PROF)
    882 		return (EINVAL);
    883 	itv32 = SCARG_P32(uap, itv);
    884 	if (itv32) {
    885 		if ((error = copyin(itv32, &s32it, sizeof(s32it))))
    886 			return (error);
    887 		netbsd32_to_itimerval50(&s32it, &aitv);
    888 	}
    889 	if (SCARG_P32(uap, oitv) != 0) {
    890 		SCARG(&getargs, which) = which;
    891 		SCARG(&getargs, itv) = SCARG(uap, oitv);
    892 		if ((error = compat_50_netbsd32_getitimer(l, &getargs, retval)) != 0)
    893 			return (error);
    894 	}
    895 	if (itv32 == 0)
    896 		return 0;
    897 
    898 	return dosetitimer(p, which, &aitv);
    899 }
    900 
    901 int
    902 compat_50_netbsd32_getitimer(struct lwp *l, const struct compat_50_netbsd32_getitimer_args *uap, register_t *retval)
    903 {
    904 	/* {
    905 		syscallarg(int) which;
    906 		syscallarg(netbsd32_itimerval50p_t) itv;
    907 	} */
    908 	struct proc *p = l->l_proc;
    909 	struct netbsd32_itimerval50 s32it;
    910 	struct itimerval aitv;
    911 	int error;
    912 
    913 	error = dogetitimer(p, SCARG(uap, which), &aitv);
    914 	if (error)
    915 		return error;
    916 
    917 	netbsd32_from_itimerval50(&aitv, &s32it);
    918 	return copyout(&s32it, SCARG_P32(uap, itv), sizeof(s32it));
    919 }
    920 
    921 #if defined(SYSVSEM)
    922 
    923 int
    924 compat_50_netbsd32___semctl14(struct lwp *l, const struct compat_50_netbsd32___semctl14_args *uap, register_t *retval)
    925 {
    926 	return do_netbsd32___semctl14(l, uap, retval, NULL);
    927 }
    928 
    929 int
    930 do_netbsd32___semctl14(struct lwp *l, const struct compat_50_netbsd32___semctl14_args *uap, register_t *retval, void *vkarg)
    931 {
    932 	/* {
    933 		syscallarg(int) semid;
    934 		syscallarg(int) semnum;
    935 		syscallarg(int) cmd;
    936 		syscallarg(netbsd32_semun50p_t) arg;
    937 	} */
    938 	struct semid_ds sembuf;
    939 	struct netbsd32_semid_ds50 sembuf32;
    940 	int cmd, error;
    941 	void *pass_arg;
    942 	union __semun karg;
    943 	union netbsd32_semun50 karg32;
    944 
    945 	cmd = SCARG(uap, cmd);
    946 
    947 	switch (cmd) {
    948 	case IPC_SET:
    949 	case IPC_STAT:
    950 		pass_arg = &sembuf;
    951 		break;
    952 
    953 	case GETALL:
    954 	case SETVAL:
    955 	case SETALL:
    956 		pass_arg = &karg;
    957 		break;
    958 	default:
    959 		pass_arg = NULL;
    960 		break;
    961 	}
    962 
    963 	if (pass_arg) {
    964 		if (vkarg != NULL)
    965 			karg32 = *(union netbsd32_semun50 *)vkarg;
    966 		else {
    967 			error = copyin(SCARG_P32(uap, arg), &karg32,
    968 					sizeof(karg32));
    969 			if (error)
    970 				return error;
    971 		}
    972 		if (pass_arg == &karg) {
    973 			switch (cmd) {
    974 			case GETALL:
    975 			case SETALL:
    976 				karg.array = NETBSD32PTR64(karg32.array);
    977 				break;
    978 			case SETVAL:
    979 				karg.val = karg32.val;
    980 				break;
    981 			}
    982 		}
    983 		if (cmd == IPC_SET) {
    984 			error = copyin(NETBSD32PTR64(karg32.buf), &sembuf32,
    985 			    sizeof(sembuf32));
    986 			if (error)
    987 				return (error);
    988 			netbsd32_to_semid_ds50(&sembuf32, &sembuf);
    989 		}
    990 	}
    991 
    992 	error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd,
    993 	    pass_arg, retval);
    994 
    995 	if (error == 0 && cmd == IPC_STAT) {
    996 		netbsd32_from_semid_ds50(&sembuf, &sembuf32);
    997 		error = copyout(&sembuf32, NETBSD32PTR64(karg32.buf),
    998 		    sizeof(sembuf32));
    999 	}
   1000 
   1001 	return (error);
   1002 }
   1003 #endif
   1004 
   1005 #if defined(SYSVMSG)
   1006 
   1007 int
   1008 compat_50_netbsd32___msgctl13(struct lwp *l, const struct compat_50_netbsd32___msgctl13_args *uap, register_t *retval)
   1009 {
   1010 	/* {
   1011 		syscallarg(int) msqid;
   1012 		syscallarg(int) cmd;
   1013 		syscallarg(netbsd32_msqid_ds50p_t) buf;
   1014 	} */
   1015 	struct msqid_ds ds;
   1016 	struct netbsd32_msqid_ds50 ds32;
   1017 	int error, cmd;
   1018 
   1019 	cmd = SCARG(uap, cmd);
   1020 	if (cmd == IPC_SET) {
   1021 		error = copyin(SCARG_P32(uap, buf), &ds32, sizeof(ds32));
   1022 		if (error)
   1023 			return error;
   1024 		netbsd32_to_msqid_ds50(&ds32, &ds);
   1025 	}
   1026 
   1027 	error = msgctl1(l, SCARG(uap, msqid), cmd,
   1028 	    (cmd == IPC_SET || cmd == IPC_STAT) ? &ds : NULL);
   1029 
   1030 	if (error == 0 && cmd == IPC_STAT) {
   1031 		netbsd32_from_msqid_ds50(&ds, &ds32);
   1032 		error = copyout(&ds32, SCARG_P32(uap, buf), sizeof(ds32));
   1033 	}
   1034 
   1035 	return error;
   1036 }
   1037 #endif
   1038 
   1039 #if defined(SYSVSHM)
   1040 
   1041 int
   1042 compat_50_netbsd32___shmctl13(struct lwp *l, const struct compat_50_netbsd32___shmctl13_args *uap, register_t *retval)
   1043 {
   1044 	/* {
   1045 		syscallarg(int) shmid;
   1046 		syscallarg(int) cmd;
   1047 		syscallarg(netbsd32_shmid_ds50p_t) buf;
   1048 	} */
   1049 	struct shmid_ds ds;
   1050 	struct netbsd32_shmid_ds50 ds32;
   1051 	int error, cmd;
   1052 
   1053 	cmd = SCARG(uap, cmd);
   1054 	if (cmd == IPC_SET) {
   1055 		error = copyin(SCARG_P32(uap, buf), &ds32, sizeof(ds32));
   1056 		if (error)
   1057 			return error;
   1058 		netbsd32_to_shmid_ds50(&ds32, &ds);
   1059 	}
   1060 
   1061 	error = shmctl1(l, SCARG(uap, shmid), cmd,
   1062 	    (cmd == IPC_SET || cmd == IPC_STAT) ? &ds : NULL);
   1063 
   1064 	if (error == 0 && cmd == IPC_STAT) {
   1065 		netbsd32_from_shmid_ds50(&ds, &ds32);
   1066 		error = copyout(&ds32, SCARG_P32(uap, buf), sizeof(ds32));
   1067 	}
   1068 
   1069 	return error;
   1070 }
   1071 #endif
   1072 
   1073 int
   1074 compat_50_netbsd32_quotactl(struct lwp *l, const struct compat_50_netbsd32_quotactl_args *uap, register_t *retval)
   1075 {
   1076 	/* {
   1077 		syscallarg(const netbsd32_charp) path;
   1078 		syscallarg(int) cmd;
   1079 		syscallarg(int) uid;
   1080 		syscallarg(netbsd32_voidp) arg;
   1081 	} */
   1082 	struct compat_50_sys_quotactl_args ua;
   1083 
   1084 	NETBSD32TOP_UAP(path, const char);
   1085 	NETBSD32TO64_UAP(cmd);
   1086 	NETBSD32TO64_UAP(uid);
   1087 	NETBSD32TOP_UAP(arg, void *);
   1088 	return (compat_50_sys_quotactl(l, &ua, retval));
   1089 }
   1090