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netbsd32_compat_50.c revision 1.32
      1 /*	$NetBSD: netbsd32_compat_50.c,v 1.32 2015/12/03 10:38:21 pgoyette 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 1.32 2015/12/03 10:38:21 pgoyette Exp $");
     40 
     41 #if defined(_KERNEL_OPT)
     42 #include "opt_compat_netbsd.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 
     67 #include <compat/netbsd32/netbsd32.h>
     68 #include <compat/netbsd32/netbsd32_syscallargs.h>
     69 #include <compat/netbsd32/netbsd32_conv.h>
     70 #include <compat/sys/mount.h>
     71 #include <compat/sys/time.h>
     72 
     73 #if defined(COMPAT_50)
     74 
     75 /*
     76  * Common routine to set access and modification times given a vnode.
     77  */
     78 static int
     79 get_utimes32(const netbsd32_timeval50p_t *tptr, struct timeval *tv,
     80     struct timeval **tvp)
     81 {
     82 	int error;
     83 	struct netbsd32_timeval50 tv32[2];
     84 
     85 	if (tptr == NULL) {
     86 		*tvp = NULL;
     87 		return 0;
     88 	}
     89 
     90 	error = copyin(tptr, tv32, sizeof(tv32));
     91 	if (error)
     92 		return error;
     93 	netbsd32_to_timeval50(&tv32[0], &tv[0]);
     94 	netbsd32_to_timeval50(&tv32[1], &tv[1]);
     95 
     96 	*tvp = tv;
     97 	return 0;
     98 }
     99 
    100 int
    101 compat_50_netbsd32_mknod(struct lwp *l,
    102     const struct compat_50_netbsd32_mknod_args *uap, register_t *retval)
    103 {
    104 	/* {
    105 		syscallarg(netbsd32_charp) path;
    106 		syscallarg(mode_t) mode;
    107 		syscallarg(uint32_t) dev;
    108 	} */
    109 	return do_sys_mknod(l, SCARG_P32(uap, path), SCARG(uap, mode),
    110 	    SCARG(uap, dev), retval, UIO_USERSPACE);
    111 }
    112 
    113 int
    114 compat_50_netbsd32_select(struct lwp *l,
    115     const struct compat_50_netbsd32_select_args *uap, register_t *retval)
    116 {
    117 	/* {
    118 		syscallarg(int) nd;
    119 		syscallarg(netbsd32_fd_setp_t) in;
    120 		syscallarg(netbsd32_fd_setp_t) ou;
    121 		syscallarg(netbsd32_fd_setp_t) ex;
    122 		syscallarg(netbsd32_timeval50p_t) tv;
    123 	} */
    124 	int error;
    125 	struct netbsd32_timeval50 tv32;
    126 	struct timespec ats, *ts = NULL;
    127 
    128 	if (SCARG_P32(uap, tv)) {
    129 		error = copyin(SCARG_P32(uap, tv), &tv32, sizeof(tv32));
    130 		if (error != 0)
    131 			return error;
    132 		ats.tv_sec = tv32.tv_sec;
    133 		ats.tv_nsec = tv32.tv_usec * 1000;
    134 		ts = &ats;
    135 	}
    136 
    137 	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
    138 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, NULL);
    139 }
    140 
    141 int
    142 compat_50_netbsd32_gettimeofday(struct lwp *l,
    143     const struct compat_50_netbsd32_gettimeofday_args *uap, register_t *retval)
    144 {
    145 	/* {
    146 		syscallarg(netbsd32_timeval50p_t) tp;
    147 		syscallarg(netbsd32_timezonep_t) tzp;
    148 	} */
    149 	struct timeval atv;
    150 	struct netbsd32_timeval50 tv32;
    151 	int error = 0;
    152 	struct netbsd32_timezone tzfake;
    153 
    154 	if (SCARG_P32(uap, tp)) {
    155 		microtime(&atv);
    156 		netbsd32_from_timeval50(&atv, &tv32);
    157 		error = copyout(&tv32, SCARG_P32(uap, tp), sizeof(tv32));
    158 		if (error)
    159 			return error;
    160 	}
    161 	if (SCARG_P32(uap, tzp)) {
    162 		/*
    163 		 * NetBSD has no kernel notion of time zone, so we just
    164 		 * fake up a timezone struct and return it if demanded.
    165 		 */
    166 		tzfake.tz_minuteswest = 0;
    167 		tzfake.tz_dsttime = 0;
    168 		error = copyout(&tzfake, SCARG_P32(uap, tzp), sizeof(tzfake));
    169 	}
    170 	return error;
    171 }
    172 
    173 int
    174 compat_50_netbsd32_settimeofday(struct lwp *l,
    175     const struct compat_50_netbsd32_settimeofday_args *uap, register_t *retval)
    176 {
    177 	/* {
    178 		syscallarg(const netbsd32_timeval50p_t) tv;
    179 		syscallarg(const netbsd32_timezonep_t) tzp;
    180 	} */
    181 	struct netbsd32_timeval50 atv32;
    182 	struct timeval atv;
    183 	struct timespec ats;
    184 	int error;
    185 	struct proc *p = l->l_proc;
    186 
    187 	/* Verify all parameters before changing time. */
    188 
    189 	/*
    190 	 * NetBSD has no kernel notion of time zone, and only an
    191 	 * obsolete program would try to set it, so we log a warning.
    192 	 */
    193 	if (SCARG_P32(uap, tzp))
    194 		printf("pid %d attempted to set the "
    195 		    "(obsolete) kernel time zone\n", p->p_pid);
    196 
    197 	if (SCARG_P32(uap, tv) == 0)
    198 		return 0;
    199 
    200 	if ((error = copyin(SCARG_P32(uap, tv), &atv32, sizeof(atv32))) != 0)
    201 		return error;
    202 
    203 	netbsd32_to_timeval50(&atv32, &atv);
    204 	TIMEVAL_TO_TIMESPEC(&atv, &ats);
    205 	return settime(p, &ats);
    206 }
    207 
    208 int
    209 compat_50_netbsd32_utimes(struct lwp *l,
    210     const struct compat_50_netbsd32_utimes_args *uap, register_t *retval)
    211 {
    212 	/* {
    213 		syscallarg(const netbsd32_charp) path;
    214 		syscallarg(const netbsd32_timeval50p_t) tptr;
    215 	} */
    216 	int error;
    217 	struct timeval tv[2], *tvp;
    218 
    219 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    220 	if (error != 0)
    221 		return error;
    222 
    223 	return do_sys_utimes(l, NULL, SCARG_P32(uap, path), FOLLOW,
    224 	    tvp, UIO_SYSSPACE);
    225 }
    226 
    227 int
    228 compat_50_netbsd32_adjtime(struct lwp *l,
    229     const struct compat_50_netbsd32_adjtime_args *uap, register_t *retval)
    230 {
    231 	/* {
    232 		syscallarg(const netbsd32_timeval50p_t) delta;
    233 		syscallarg(netbsd32_timeval50p_t) olddelta;
    234 	} */
    235 	struct netbsd32_timeval50 atv;
    236 	int error;
    237 
    238 	extern int time_adjusted;     /* in kern_ntptime.c */
    239 	extern int64_t time_adjtime;  /* in kern_ntptime.c */
    240 
    241 	if ((error = kauth_authorize_system(l->l_cred,
    242 	    KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_ADJTIME, NULL, NULL,
    243 	    NULL)) != 0)
    244 		return (error);
    245 
    246 	if (SCARG_P32(uap, olddelta)) {
    247 		mutex_spin_enter(&timecounter_lock);
    248 		atv.tv_sec = time_adjtime / 1000000;
    249 		atv.tv_usec = time_adjtime % 1000000;
    250 		if (atv.tv_usec < 0) {
    251 			atv.tv_usec += 1000000;
    252 			atv.tv_sec--;
    253 		}
    254 		mutex_spin_exit(&timecounter_lock);
    255 
    256 		error = copyout(&atv, SCARG_P32(uap, olddelta), sizeof(atv));
    257 		if (error)
    258 			return (error);
    259 	}
    260 
    261 	if (SCARG_P32(uap, delta)) {
    262 		error = copyin(SCARG_P32(uap, delta), &atv, sizeof(atv));
    263 		if (error)
    264 			return (error);
    265 
    266 		mutex_spin_enter(&timecounter_lock);
    267 		time_adjtime = (int64_t)atv.tv_sec * 1000000 + atv.tv_usec;
    268 		if (time_adjtime)
    269 			/* We need to save the system time during shutdown */
    270 			time_adjusted |= 1;
    271 		mutex_spin_exit(&timecounter_lock);
    272 	}
    273 
    274 	return 0;
    275 }
    276 
    277 int
    278 compat_50_netbsd32_futimes(struct lwp *l,
    279     const struct compat_50_netbsd32_futimes_args *uap, register_t *retval)
    280 {
    281 	/* {
    282 		syscallarg(int) fd;
    283 		syscallarg(const netbsd32_timeval50p_t) tptr;
    284 	} */
    285 	int error;
    286 	file_t *fp;
    287 	struct timeval tv[2], *tvp;
    288 
    289 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    290 	if (error != 0)
    291 		return error;
    292 
    293 	/* fd_getvnode() will use the descriptor for us */
    294 	if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
    295 		return error;
    296 
    297 	error = do_sys_utimes(l, fp->f_vnode, NULL, 0, tvp, UIO_SYSSPACE);
    298 
    299 	fd_putfile(SCARG(uap, fd));
    300 	return error;
    301 }
    302 
    303 int
    304 compat_50_netbsd32_clock_gettime(struct lwp *l,
    305     const struct compat_50_netbsd32_clock_gettime_args *uap, register_t *retval)
    306 {
    307 	/* {
    308 		syscallarg(netbsd32_clockid_t) clock_id;
    309 		syscallarg(netbsd32_timespec50p_t) tp;
    310 	} */
    311 	int error;
    312 	struct timespec ats;
    313 	struct netbsd32_timespec50 ts32;
    314 
    315 	error = clock_gettime1(SCARG(uap, clock_id), &ats);
    316 	if (error != 0)
    317 		return error;
    318 
    319 	netbsd32_from_timespec50(&ats, &ts32);
    320 	return copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32));
    321 }
    322 
    323 int
    324 compat_50_netbsd32_clock_settime(struct lwp *l,
    325     const struct compat_50_netbsd32_clock_settime_args *uap, register_t *retval)
    326 {
    327 	/* {
    328 		syscallarg(netbsd32_clockid_t) clock_id;
    329 		syscallarg(const netbsd32_timespec50p_t) tp;
    330 	} */
    331 	struct netbsd32_timespec50 ts32;
    332 	struct timespec ats;
    333 	int error;
    334 
    335 	if ((error = copyin(SCARG_P32(uap, tp), &ts32, sizeof(ts32))) != 0)
    336 		return (error);
    337 
    338 	netbsd32_to_timespec50(&ts32, &ats);
    339 	return clock_settime1(l->l_proc, SCARG(uap, clock_id), &ats, true);
    340 }
    341 
    342 int
    343 compat_50_netbsd32_clock_getres(struct lwp *l,
    344     const struct compat_50_netbsd32_clock_getres_args *uap, register_t *retval)
    345 {
    346 	/* {
    347 		syscallarg(netbsd32_clockid_t) clock_id;
    348 		syscallarg(netbsd32_timespec50p_t) tp;
    349 	} */
    350 	struct netbsd32_timespec50 ts32;
    351 	struct timespec ts;
    352 	int error;
    353 
    354 	error = clock_getres1(SCARG(uap, clock_id), &ts);
    355 	if (error != 0)
    356 		return error;
    357 
    358 	if (SCARG_P32(uap, tp)) {
    359 		netbsd32_from_timespec50(&ts, &ts32);
    360 		error = copyout(&ts32, SCARG_P32(uap, tp), sizeof(ts32));
    361 	}
    362 
    363 	return error;
    364 }
    365 
    366 int
    367 compat_50_netbsd32_timer_settime(struct lwp *l,
    368     const struct compat_50_netbsd32_timer_settime_args *uap, register_t *retval)
    369 {
    370 	/* {
    371 		syscallarg(netbsd32_timer_t) timerid;
    372 		syscallarg(int) flags;
    373 		syscallarg(const netbsd32_itimerspec50p_t) value;
    374 		syscallarg(netbsd32_itimerspec50p_t) ovalue;
    375 	} */
    376 	int error;
    377 	struct itimerspec value, ovalue, *ovp = NULL;
    378 	struct netbsd32_itimerspec50 its32;
    379 
    380 	if ((error = copyin(SCARG_P32(uap, value), &its32, sizeof(its32))) != 0)
    381 		return (error);
    382 	netbsd32_to_timespec50(&its32.it_interval, &value.it_interval);
    383 	netbsd32_to_timespec50(&its32.it_value, &value.it_value);
    384 
    385 	if (SCARG_P32(uap, ovalue))
    386 		ovp = &ovalue;
    387 
    388 	if ((error = dotimer_settime(SCARG(uap, timerid), &value, ovp,
    389 	    SCARG(uap, flags), l->l_proc)) != 0)
    390 		return error;
    391 
    392 	if (ovp) {
    393 		netbsd32_from_timespec50(&ovp->it_interval, &its32.it_interval);
    394 		netbsd32_from_timespec50(&ovp->it_value, &its32.it_value);
    395 		return copyout(&its32, SCARG_P32(uap, ovalue), sizeof(its32));
    396 	}
    397 	return 0;
    398 }
    399 
    400 int
    401 compat_50_netbsd32_timer_gettime(struct lwp *l, const struct compat_50_netbsd32_timer_gettime_args *uap, register_t *retval)
    402 {
    403 	/* {
    404 		syscallarg(netbsd32_timer_t) timerid;
    405 		syscallarg(netbsd32_itimerspec50p_t) value;
    406 	} */
    407 	int error;
    408 	struct itimerspec its;
    409 	struct netbsd32_itimerspec50 its32;
    410 
    411 	if ((error = dotimer_gettime(SCARG(uap, timerid), l->l_proc,
    412 	    &its)) != 0)
    413 		return error;
    414 
    415 	netbsd32_from_timespec50(&its.it_interval, &its32.it_interval);
    416 	netbsd32_from_timespec50(&its.it_value, &its32.it_value);
    417 
    418 	return copyout(&its32, SCARG_P32(uap, value), sizeof(its32));
    419 }
    420 
    421 int
    422 compat_50_netbsd32_nanosleep(struct lwp *l,
    423     const struct compat_50_netbsd32_nanosleep_args *uap, register_t *retval)
    424 {
    425 	/* {
    426 		syscallarg(const netbsd32_timespec50p_t) rqtp;
    427 		syscallarg(netbsd32_timespecp_t) rmtp;
    428 	} */
    429 	struct netbsd32_timespec50 ts32;
    430 	struct timespec rqt, rmt;
    431 	int error, error1;
    432 
    433 	error = copyin(SCARG_P32(uap, rqtp), &ts32, sizeof(ts32));
    434 	if (error)
    435 		return (error);
    436 	netbsd32_to_timespec50(&ts32, &rqt);
    437 
    438 	error = nanosleep1(l, CLOCK_MONOTONIC, 0, &rqt,
    439 	    SCARG_P32(uap, rmtp) ? &rmt : NULL);
    440 	if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR))
    441 		return error;
    442 
    443 	netbsd32_from_timespec50(&rmt, &ts32);
    444 	error1 = copyout(&ts32, SCARG_P32(uap,rmtp), sizeof(ts32));
    445 	return error1 ? error1 : error;
    446 }
    447 
    448 static int
    449 compat_50_netbsd32_sigtimedwait_put_info(const void *src, void *dst, size_t size)
    450 {
    451 	const siginfo_t *info = src;
    452 	siginfo32_t info32;
    453 
    454 	netbsd32_si_to_si32(&info32, info);
    455 
    456 	return copyout(&info32, dst, sizeof(info32));
    457 }
    458 
    459 static int
    460 compat_50_netbsd32_sigtimedwait_fetch_timeout(const void *src, void *dst, size_t size)
    461 {
    462 	struct timespec *ts = dst;
    463 	struct netbsd32_timespec50 ts32;
    464 	int error;
    465 
    466 	error = copyin(src, &ts32, sizeof(ts32));
    467 	if (error)
    468 		return error;
    469 
    470 	netbsd32_to_timespec50(&ts32, ts);
    471 	return 0;
    472 }
    473 
    474 static int
    475 compat_50_netbsd32_sigtimedwait_put_timeout(const void *src, void *dst, size_t size)
    476 {
    477 	const struct timespec *ts = src;
    478 	struct netbsd32_timespec50 ts32;
    479 
    480 	netbsd32_from_timespec50(ts, &ts32);
    481 
    482 	return copyout(&ts32, dst, sizeof(ts32));
    483 }
    484 
    485 int
    486 compat_50_netbsd32___sigtimedwait(struct lwp *l,
    487     const struct compat_50_netbsd32___sigtimedwait_args *uap, register_t *retval)
    488 {
    489 	/* {
    490 		syscallarg(netbsd32_sigsetp_t) set;
    491 		syscallarg(netbsd32_siginfop_t) info;
    492 		syscallarg(netbsd32_timespec50p_t) timeout;
    493 	} */
    494 	struct sys_____sigtimedwait50_args ua;
    495 	int res;
    496 
    497 	NETBSD32TOP_UAP(set, const sigset_t);
    498 	NETBSD32TOP_UAP(info, siginfo_t);
    499 	NETBSD32TOP_UAP(timeout, struct timespec);
    500 
    501 	res = sigtimedwait1(l, &ua, retval,
    502 	    copyin,
    503 	    compat_50_netbsd32_sigtimedwait_put_info,
    504 	    compat_50_netbsd32_sigtimedwait_fetch_timeout,
    505 	    compat_50_netbsd32_sigtimedwait_put_timeout);
    506 	if (!res)
    507 		*retval = 0; /* XXX NetBSD<=5 was not POSIX compliant */
    508 	return res;
    509 }
    510 
    511 int
    512 compat_50_netbsd32_lutimes(struct lwp *l,
    513     const struct compat_50_netbsd32_lutimes_args *uap, register_t *retval)
    514 {
    515 	/* {
    516 		syscallarg(const netbsd32_charp) path;
    517 		syscallarg(const netbsd32_timeval50p_t) tptr;
    518 	} */
    519 	int error;
    520 	struct timeval tv[2], *tvp;
    521 
    522 	error = get_utimes32(SCARG_P32(uap, tptr), tv, &tvp);
    523 	if (error != 0)
    524 		return error;
    525 
    526 	return do_sys_utimes(l, NULL, SCARG_P32(uap, path), NOFOLLOW,
    527 	    tvp, UIO_SYSSPACE);
    528 }
    529 
    530 int
    531 compat_50_netbsd32__lwp_park(struct lwp *l,
    532     const struct compat_50_netbsd32__lwp_park_args *uap, register_t *retval)
    533 {
    534 	/* {
    535 		syscallarg(const netbsd32_timespec50p) ts;
    536 		syscallarg(lwpid_t) unpark;
    537 		syscallarg(netbsd32_voidp) hint;
    538 		syscallarg(netbsd32_voidp) unparkhint;
    539 	} */
    540 	struct timespec ts, *tsp;
    541 	struct netbsd32_timespec50 ts32;
    542 	int error;
    543 
    544 	if (SCARG_P32(uap, ts) == NULL)
    545 		tsp = NULL;
    546 	else {
    547 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32);
    548 		if (error != 0)
    549 			return error;
    550 		netbsd32_to_timespec50(&ts32, &ts);
    551 		tsp = &ts;
    552 	}
    553 
    554 	if (SCARG(uap, unpark) != 0) {
    555 		error = lwp_unpark(SCARG(uap, unpark),
    556 		    SCARG_P32(uap, unparkhint));
    557 		if (error != 0)
    558 			return error;
    559 	}
    560 
    561 	return lwp_park(CLOCK_REALTIME, TIMER_ABSTIME, tsp,
    562 	    SCARG_P32(uap, hint));
    563 }
    564 
    565 static int
    566 netbsd32_kevent_fetch_timeout(const void *src, void *dest, size_t length)
    567 {
    568 	struct netbsd32_timespec50 ts32;
    569 	int error;
    570 
    571 	KASSERT(length == sizeof(struct timespec50));
    572 
    573 	error = copyin(src, &ts32, sizeof(ts32));
    574 	if (error)
    575 		return error;
    576 	netbsd32_to_timespec50(&ts32, (struct timespec *)dest);
    577 	return 0;
    578 }
    579 
    580 static int
    581 netbsd32_kevent_fetch_changes(void *ctx, const struct kevent *changelist,
    582     struct kevent *changes, size_t index, int n)
    583 {
    584 	const struct netbsd32_kevent *src =
    585 	    (const struct netbsd32_kevent *)changelist;
    586 	struct netbsd32_kevent *kev32, *changes32 = ctx;
    587 	int error, i;
    588 
    589 	error = copyin(src + index, changes32, n * sizeof(*changes32));
    590 	if (error)
    591 		return error;
    592 	for (i = 0, kev32 = changes32; i < n; i++, kev32++, changes++)
    593 		netbsd32_to_kevent(kev32, changes);
    594 	return 0;
    595 }
    596 
    597 static int
    598 netbsd32_kevent_put_events(void *ctx, struct kevent *events,
    599     struct kevent *eventlist, size_t index, int n)
    600 {
    601 	struct netbsd32_kevent *kev32, *events32 = ctx;
    602 	int i;
    603 
    604 	for (i = 0, kev32 = events32; i < n; i++, kev32++, events++)
    605 		netbsd32_from_kevent(events, kev32);
    606 	kev32 = (struct netbsd32_kevent *)eventlist;
    607 	return  copyout(events32, kev32, n * sizeof(*events32));
    608 }
    609 
    610 int
    611 compat_50_netbsd32_kevent(struct lwp *l,
    612     const struct compat_50_netbsd32_kevent_args *uap, register_t *retval)
    613 {
    614 	/* {
    615 		syscallarg(int) fd;
    616 		syscallarg(netbsd32_keventp_t) changelist;
    617 		syscallarg(netbsd32_size_t) nchanges;
    618 		syscallarg(netbsd32_keventp_t) eventlist;
    619 		syscallarg(netbsd32_size_t) nevents;
    620 		syscallarg(netbsd32_timespec50p_t) timeout;
    621 	} */
    622 	int error;
    623 	size_t maxalloc, nchanges, nevents;
    624 	struct kevent_ops netbsd32_kevent_ops = {
    625 		.keo_fetch_timeout = netbsd32_kevent_fetch_timeout,
    626 		.keo_fetch_changes = netbsd32_kevent_fetch_changes,
    627 		.keo_put_events = netbsd32_kevent_put_events,
    628 	};
    629 
    630 	nchanges = SCARG(uap, nchanges);
    631 	nevents = SCARG(uap, nevents);
    632 	maxalloc = KQ_NEVENTS;
    633 
    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 }
    681 
    682 int
    683 compat_50_netbsd32_pollts(struct lwp *l,
    684     const struct compat_50_netbsd32_pollts_args *uap, register_t *retval)
    685 {
    686 	/* {
    687 		syscallarg(struct netbsd32_pollfdp_t) fds;
    688 		syscallarg(u_int) nfds;
    689 		syscallarg(const netbsd32_timespec50p_t) ts;
    690 		syscallarg(const netbsd32_sigsetp_t) mask;
    691 	} */
    692 	int error;
    693 	struct netbsd32_timespec50 ts32;
    694 	struct timespec ats, *ts = NULL;
    695 	sigset_t amask, *mask = NULL;
    696 
    697 	if (SCARG_P32(uap, ts)) {
    698 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
    699 		if (error != 0)
    700 			return error;
    701 		netbsd32_to_timespec50(&ts32, &ats);
    702 		ts = &ats;
    703 	}
    704 	if (NETBSD32PTR64( SCARG(uap, mask))) {
    705 		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
    706 		if (error != 0)
    707 			return error;
    708 		mask = &amask;
    709 	}
    710 
    711 	return pollcommon(retval, SCARG_P32(uap, fds),
    712 	    SCARG(uap, nfds), ts, mask);
    713 }
    714 
    715 int
    716 compat_50_netbsd32___stat30(struct lwp *l,
    717     const struct compat_50_netbsd32___stat30_args *uap, register_t *retval)
    718 {
    719 	/* {
    720 		syscallarg(const netbsd32_charp) path;
    721 		syscallarg(netbsd32_stat50p_t) ub;
    722 	} */
    723 	struct netbsd32_stat50 sb32;
    724 	struct stat sb;
    725 	int error;
    726 	const char *path;
    727 
    728 	path = SCARG_P32(uap, path);
    729 
    730 	error = do_sys_stat(path, FOLLOW, &sb);
    731 	if (error)
    732 		return error;
    733 	netbsd32_from___stat50(&sb, &sb32);
    734 	error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
    735 	return error;
    736 }
    737 
    738 int
    739 compat_50_netbsd32___fstat30(struct lwp *l,
    740     const struct compat_50_netbsd32___fstat30_args *uap, register_t *retval)
    741 {
    742 	/* {
    743 		syscallarg(int) fd;
    744 		syscallarg(netbsd32_stat50p_t) sb;
    745 	} */
    746 	struct netbsd32_stat50 sb32;
    747 	struct stat ub;
    748 	int error;
    749 
    750 	error = do_sys_fstat(SCARG(uap, fd), &ub);
    751 	if (error == 0) {
    752 		netbsd32_from___stat50(&ub, &sb32);
    753 		error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32));
    754 	}
    755 	return error;
    756 }
    757 
    758 int
    759 compat_50_netbsd32___lstat30(struct lwp *l,
    760     const struct compat_50_netbsd32___lstat30_args *uap, register_t *retval)
    761 {
    762 	/* {
    763 		syscallarg(const netbsd32_charp) path;
    764 		syscallarg(netbsd32_stat50p_t) ub;
    765 	} */
    766 	struct netbsd32_stat50 sb32;
    767 	struct stat sb;
    768 	int error;
    769 	const char *path;
    770 
    771 	path = SCARG_P32(uap, path);
    772 
    773 	error = do_sys_stat(path, NOFOLLOW, &sb);
    774 	if (error)
    775 		return error;
    776 	netbsd32_from___stat50(&sb, &sb32);
    777 	error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
    778 	return error;
    779 }
    780 
    781 int
    782 compat_50_netbsd32___fhstat40(struct lwp *l, const struct compat_50_netbsd32___fhstat40_args *uap, register_t *retval)
    783 {
    784 	/* {
    785 		syscallarg(const netbsd32_pointer_t) fhp;
    786 		syscallarg(netbsd32_size_t) fh_size;
    787 		syscallarg(netbsd32_stat50p_t) sb;
    788 	} */
    789 	struct stat sb;
    790 	struct netbsd32_stat50 sb32;
    791 	int error;
    792 
    793 	error = do_fhstat(l, SCARG_P32(uap, fhp), SCARG(uap, fh_size), &sb);
    794 	if (error != 0) {
    795 		netbsd32_from___stat50(&sb, &sb32);
    796 		error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb));
    797 	}
    798 	return error;
    799 }
    800 
    801 int
    802 compat_50_netbsd32_wait4(struct lwp *l, const struct compat_50_netbsd32_wait4_args *uap, register_t *retval)
    803 {
    804 	/* {
    805 		syscallarg(int) pid;
    806 		syscallarg(netbsd32_intp) status;
    807 		syscallarg(int) options;
    808 		syscallarg(netbsd32_rusage50p_t) rusage;
    809 	} */
    810 	int error, status, pid = SCARG(uap, pid);
    811 	struct netbsd32_rusage50 ru32;
    812 	struct rusage ru;
    813 
    814 	error = do_sys_wait(&pid, &status, SCARG(uap, options),
    815 	    SCARG_P32(uap, rusage) != NULL ? &ru : NULL);
    816 
    817 	retval[0] = pid;
    818 	if (pid == 0)
    819 		return error;
    820 
    821 	if (SCARG_P32(uap, rusage)) {
    822 		netbsd32_from_rusage50(&ru, &ru32);
    823 		error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
    824 	}
    825 
    826 	if (error == 0 && SCARG_P32(uap, status))
    827 		error = copyout(&status, SCARG_P32(uap, status), sizeof(status));
    828 
    829 	return error;
    830 }
    831 
    832 
    833 int
    834 compat_50_netbsd32_getrusage(struct lwp *l, const struct compat_50_netbsd32_getrusage_args *uap, register_t *retval)
    835 {
    836 	/* {
    837 		syscallarg(int) who;
    838 		syscallarg(netbsd32_rusage50p_t) rusage;
    839 	} */
    840 	int error;
    841 	struct proc *p = l->l_proc;
    842 	struct rusage ru;
    843 	struct netbsd32_rusage50 ru32;
    844 
    845 	error = getrusage1(p, SCARG(uap, who), &ru);
    846 	if (error != 0)
    847 		return error;
    848 
    849 	netbsd32_from_rusage50(&ru, &ru32);
    850 	return copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
    851 }
    852 
    853 int
    854 compat_50_netbsd32_setitimer(struct lwp *l,
    855     const struct compat_50_netbsd32_setitimer_args *uap, register_t *retval)
    856 {
    857 	/* {
    858 		syscallarg(int) which;
    859 		syscallarg(const netbsd32_itimerval50p_t) itv;
    860 		syscallarg(netbsd32_itimerval50p_t) oitv;
    861 	} */
    862 	struct proc *p = l->l_proc;
    863 	struct netbsd32_itimerval50 s32it, *itv32;
    864 	int which = SCARG(uap, which);
    865 	struct compat_50_netbsd32_getitimer_args getargs;
    866 	struct itimerval aitv;
    867 	int error;
    868 
    869 	if ((u_int)which > ITIMER_PROF)
    870 		return (EINVAL);
    871 	itv32 = SCARG_P32(uap, itv);
    872 	if (itv32) {
    873 		if ((error = copyin(itv32, &s32it, sizeof(s32it))))
    874 			return (error);
    875 		netbsd32_to_itimerval50(&s32it, &aitv);
    876 	}
    877 	if (SCARG_P32(uap, oitv) != 0) {
    878 		SCARG(&getargs, which) = which;
    879 		SCARG(&getargs, itv) = SCARG(uap, oitv);
    880 		if ((error = compat_50_netbsd32_getitimer(l, &getargs, retval)) != 0)
    881 			return (error);
    882 	}
    883 	if (itv32 == 0)
    884 		return 0;
    885 
    886 	return dosetitimer(p, which, &aitv);
    887 }
    888 
    889 int
    890 compat_50_netbsd32_getitimer(struct lwp *l, const struct compat_50_netbsd32_getitimer_args *uap, register_t *retval)
    891 {
    892 	/* {
    893 		syscallarg(int) which;
    894 		syscallarg(netbsd32_itimerval50p_t) itv;
    895 	} */
    896 	struct proc *p = l->l_proc;
    897 	struct netbsd32_itimerval50 s32it;
    898 	struct itimerval aitv;
    899 	int error;
    900 
    901 	error = dogetitimer(p, SCARG(uap, which), &aitv);
    902 	if (error)
    903 		return error;
    904 
    905 	netbsd32_from_itimerval50(&aitv, &s32it);
    906 	return copyout(&s32it, SCARG_P32(uap, itv), sizeof(s32it));
    907 }
    908 
    909 int
    910 compat_50_netbsd32_quotactl(struct lwp *l, const struct compat_50_netbsd32_quotactl_args *uap, register_t *retval)
    911 {
    912 	/* {
    913 		syscallarg(const netbsd32_charp) path;
    914 		syscallarg(int) cmd;
    915 		syscallarg(int) uid;
    916 		syscallarg(netbsd32_voidp) arg;
    917 	} */
    918 	struct compat_50_sys_quotactl_args ua;
    919 
    920 	NETBSD32TOP_UAP(path, const char);
    921 	NETBSD32TO64_UAP(cmd);
    922 	NETBSD32TO64_UAP(uid);
    923 	NETBSD32TOP_UAP(arg, void *);
    924 	return (compat_50_sys_quotactl(l, &ua, retval));
    925 }
    926 
    927 #endif /* COMPAT_50 */
    928