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ultrix_misc.c revision 1.15
      1 /*	$NetBSD: ultrix_misc.c,v 1.15 1995/09/19 22:49:22 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This software was developed by the Computer Systems Engineering group
      8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      9  * contributed to Berkeley.
     10  *
     11  * All advertising materials mentioning features or use of this software
     12  * must display the following acknowledgement:
     13  *	This product includes software developed by the University of
     14  *	California, Lawrence Berkeley Laboratory.
     15  *
     16  * Redistribution and use in source and binary forms, with or without
     17  * modification, are permitted provided that the following conditions
     18  * are met:
     19  * 1. Redistributions of source code must retain the above copyright
     20  *    notice, this list of conditions and the following disclaimer.
     21  * 2. Redistributions in binary form must reproduce the above copyright
     22  *    notice, this list of conditions and the following disclaimer in the
     23  *    documentation and/or other materials provided with the distribution.
     24  * 3. All advertising materials mentioning features or use of this software
     25  *    must display the following acknowledgement:
     26  *	This product includes software developed by the University of
     27  *	California, Berkeley and its contributors.
     28  * 4. Neither the name of the University nor the names of its contributors
     29  *    may be used to endorse or promote products derived from this software
     30  *    without specific prior written permission.
     31  *
     32  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     33  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     34  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     35  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     36  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     40  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     41  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     42  * SUCH DAMAGE.
     43  *
     44  *
     45  *	@(#)sun_misc.c	8.1 (Berkeley) 6/18/93
     46  *
     47  * from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp
     48  */
     49 
     50 /*
     51  * SunOS compatibility module.
     52  *
     53  * SunOS system calls that are implemented differently in BSD are
     54  * handled here.
     55  */
     56 
     57 #include <sys/param.h>
     58 #include <sys/systm.h>
     59 #include <sys/namei.h>
     60 #include <sys/dir.h>
     61 #include <sys/proc.h>
     62 #include <sys/file.h>
     63 #include <sys/stat.h>
     64 #include <sys/filedesc.h>
     65 #include <sys/ioctl.h>
     66 #include <sys/kernel.h>
     67 #include <sys/exec.h>
     68 #include <sys/malloc.h>
     69 #include <sys/mbuf.h>
     70 #include <sys/mman.h>
     71 #include <sys/mount.h>
     72 #include <sys/resource.h>
     73 #include <sys/resourcevar.h>
     74 #include <sys/signal.h>
     75 #include <sys/signalvar.h>
     76 #include <sys/socket.h>
     77 #include <sys/vnode.h>
     78 #include <sys/uio.h>
     79 #include <sys/wait.h>
     80 #include <sys/utsname.h>
     81 #include <sys/unistd.h>
     82 
     83 #include <netinet/in.h>
     84 
     85 #include <miscfs/specfs/specdev.h>
     86 #include <compat/ultrix/ultrix_syscall.h>
     87 
     88 #include <nfs/rpcv2.h>
     89 #include <nfs/nfsv2.h>
     90 #include <nfs/nfs.h>
     91 
     92 #include <vm/vm.h>
     93 
     94 extern struct sysent ultrix_sysent[];
     95 extern char *ultrix_syscallnames[];
     96 extern void cpu_exec_ecoff_setregs __P((struct proc *, struct exec_package *,
     97 					u_long, register_t *));
     98 struct emul emul_ultrix = {
     99 	"ultrix",
    100 	NULL,
    101 	sendsig,
    102 	ULTRIX_SYS_syscall,
    103 	ULTRIX_SYS_MAXSYSCALL,
    104 	ultrix_sysent,
    105 	ultrix_syscallnames,
    106 	0,
    107 	copyargs,
    108 	cpu_exec_ecoff_setregs,
    109 	0,
    110 	0,
    111 };
    112 
    113 #define GSI_PROG_ENV 1
    114 
    115 struct ultrix_getsysinfo_args {
    116 	unsigned	op;
    117 	char		*buffer;
    118 	unsigned	nbytes;
    119 	int		*start;
    120 	char		*arg;
    121 };
    122 
    123 ultrix_getsysinfo(p, v, retval)
    124 	struct proc *p;
    125 	void *v;
    126 	int *retval;
    127 {
    128 	struct ultrix_getsysinfo_args *uap = v;
    129 	static short progenv = 0;
    130 
    131 	switch (uap->op) {
    132 		/* operations implemented: */
    133 	case GSI_PROG_ENV:
    134 		if (uap->nbytes < sizeof(short))
    135 			return EINVAL;
    136 		*retval = 1;
    137 		return(copyout(&progenv, uap->buffer, sizeof(short)));
    138 	default:
    139 		*retval = 0; /* info unavail */
    140 		return 0;
    141 	}
    142 }
    143 
    144 struct ultrix_setsysinfo_args {
    145 	unsigned	op;
    146 	char		*buffer;
    147 	unsigned	nbytes;
    148 	unsigned	arg;
    149 	unsigned	flag;
    150 };
    151 
    152 ultrix_setsysinfo(p, v, retval)
    153 	struct proc *p;
    154 	void *v;
    155 	int *retval;
    156 {
    157 	struct ultrix_setsysinfo_args *uap = v;
    158 	*retval = 0;
    159 	return 0;
    160 }
    161 
    162 struct ultrix_waitpid_args {
    163 	int	pid;
    164 	int	*status;
    165 	int	options;
    166 	struct	rusage *rusage;
    167 };
    168 
    169 ultrix_waitpid(p, v, retval)
    170 	struct proc *p;
    171 	void *v;
    172 	register_t *retval;
    173 {
    174 	struct ultrix_waitpid_args *uap = v;
    175 
    176 	uap->rusage = 0;
    177 	return (wait4(p, uap, retval));
    178 }
    179 struct sun_wait4_args {
    180 	int	pid;
    181 	int	*status;
    182 	int	options;
    183 	struct	rusage *rusage;
    184 	int compat;
    185 };
    186 sun_wait4(p, v, retval)
    187 	struct proc *p;
    188 	void *v;
    189 	register_t *retval;
    190 {
    191 	struct sun_wait4_args *uap = v;
    192 
    193 	if (uap->pid == 0)
    194 		uap->pid = WAIT_ANY;
    195 	return (wait4(p, uap, retval));
    196 }
    197 
    198 struct sun_wait3_args {
    199 	int	*status;
    200 	int	options;
    201 	struct	rusage *rusage;
    202 };
    203 
    204 sun_wait3(p, v, retval)
    205 	struct proc *p;
    206 	void *v;
    207 	register_t *retval;
    208 {
    209 	struct sun_wait3_args *uap = v;
    210 	struct sun_wait4_args ua;
    211 
    212 	if (uap == NULL)
    213 		panic("uap == NULL");
    214 	ua.pid = -1;
    215 	ua.status = uap->status;
    216 	ua.options = uap->options;
    217 	ua.rusage = uap->rusage;
    218 
    219 	return (wait4(p, &ua, retval));
    220 }
    221 
    222 struct sun_creat_args {
    223 	char	*fname;
    224 	int	fmode;
    225 };
    226 sun_creat(p, v, retval)
    227 	struct proc *p;
    228 	void *v;
    229 	register_t *retval;
    230 {
    231 	struct sun_creat_args *uap = v;
    232 	struct args {
    233 		char	*fname;
    234 		int	mode;
    235 		int	crtmode;
    236 	} openuap;
    237 
    238 	openuap.fname = uap->fname;
    239 	openuap.crtmode = uap->fmode;
    240 	openuap.mode = O_WRONLY | O_CREAT | O_TRUNC;
    241 	return (open(p, &openuap, retval));
    242 }
    243 
    244 struct sun_execv_args {
    245 	char	*fname;
    246 	char	**argp;
    247 	char	**envp;		/* pseudo */
    248 };
    249 sun_execv(p, v, retval)
    250 	struct proc *p;
    251 	void *v;
    252 	register_t *retval;
    253 {
    254 	struct sun_execv_args *uap = v;
    255 
    256 	uap->envp = NULL;
    257 	return (execve(p, uap, retval));
    258 }
    259 
    260 struct sun_omsync_args {
    261 	caddr_t	addr;
    262 	int	len;
    263 	int	flags;
    264 };
    265 sun_omsync(p, v, retval)
    266 	struct proc *p;
    267 	void *v;
    268 	register_t *retval;
    269 {
    270 	struct sun_omsync_args *uap = v;
    271 
    272 	if (uap->flags)
    273 		return (EINVAL);
    274 	return (msync(p, uap, retval));
    275 }
    276 
    277 struct sun_unmount_args {
    278 	char	*name;
    279 	int	flags;	/* pseudo */
    280 };
    281 sun_unmount(p, v, retval)
    282 	struct proc *p;
    283 	void *v;
    284 	register_t *retval;
    285 {
    286 	struct sun_unmount_args *uap = v;
    287 
    288 	uap->flags = 0;
    289 	return (unmount(p, uap, retval));
    290 }
    291 
    292 #define	SUNM_RDONLY	0x01	/* mount fs read-only */
    293 #define	SUNM_NOSUID	0x02	/* mount fs with setuid disallowed */
    294 #define	SUNM_NEWTYPE	0x04	/* type is string (char *), not int */
    295 #define	SUNM_GRPID	0x08	/* (bsd semantics; ignored) */
    296 #define	SUNM_REMOUNT	0x10	/* update existing mount */
    297 #define	SUNM_NOSUB	0x20	/* prevent submounts (rejected) */
    298 #define	SUNM_MULTI	0x40	/* (ignored) */
    299 #define	SUNM_SYS5	0x80	/* Sys 5-specific semantics (rejected) */
    300 
    301 struct	sun_nfs_args {
    302 	struct	sockaddr_in *addr;	/* file server address */
    303 	caddr_t	fh;			/* file handle to be mounted */
    304 	int	flags;			/* flags */
    305 	int	wsize;			/* write size in bytes */
    306 	int	rsize;			/* read size in bytes */
    307 	int	timeo;			/* initial timeout in .1 secs */
    308 	int	retrans;		/* times to retry send */
    309 	char	*hostname;		/* server's hostname */
    310 	int	acregmin;		/* attr cache file min secs */
    311 	int	acregmax;		/* attr cache file max secs */
    312 	int	acdirmin;		/* attr cache dir min secs */
    313 	int	acdirmax;		/* attr cache dir max secs */
    314 	char	*netname;		/* server's netname */
    315 	struct	pathcnf *pathconf;	/* static pathconf kludge */
    316 };
    317 
    318 struct sun_mount_args {
    319 	char	*type;
    320 	char	*dir;
    321 	int	flags;
    322 	caddr_t	data;
    323 };
    324 sun_mount(p, v, retval)
    325 	struct proc *p;
    326 	void *v;
    327 	register_t *retval;
    328 {
    329 	struct sun_mount_args *uap = v;
    330 	int oflags = uap->flags, nflags, error;
    331 	extern char sigcode[], esigcode[];
    332 	char fsname[MFSNAMELEN];
    333 
    334 #define	szsigcode	(esigcode - sigcode)
    335 
    336 	if (oflags & (SUNM_NOSUB | SUNM_SYS5))
    337 		return (EINVAL);
    338 	if ((oflags & SUNM_NEWTYPE) == 0)
    339 		return (EINVAL);
    340 	nflags = 0;
    341 	if (oflags & SUNM_RDONLY)
    342 		nflags |= MNT_RDONLY;
    343 	if (oflags & SUNM_NOSUID)
    344 		nflags |= MNT_NOSUID;
    345 	if (oflags & SUNM_REMOUNT)
    346 		nflags |= MNT_UPDATE;
    347 	uap->flags = nflags;
    348 
    349 	if (error = copyinstr((caddr_t)uap->type, fsname, sizeof fsname,
    350 	    (size_t *)0))
    351 		return (error);
    352 
    353 	if (strncmp(fsname, "4.2", sizeof fsname) == 0) {
    354 		uap->type = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
    355 		if (error = copyout("ufs", uap->type, sizeof("ufs")))
    356 			return (error);
    357 	} else if (strncmp(fsname, "nfs", sizeof fsname) == 0) {
    358 		struct sun_nfs_args sna;
    359 		struct sockaddr_in sain;
    360 		struct nfs_args na;
    361 		struct sockaddr sa;
    362 
    363 		if (error = copyin(uap->data, &sna, sizeof sna))
    364 			return (error);
    365 		if (error = copyin(sna.addr, &sain, sizeof sain))
    366 			return (error);
    367 		bcopy(&sain, &sa, sizeof sa);
    368 		sa.sa_len = sizeof(sain);
    369 		uap->data = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
    370 		na.addr = (struct sockaddr *)((int)uap->data + sizeof na);
    371 		na.sotype = SOCK_DGRAM;
    372 		na.proto = IPPROTO_UDP;
    373 		na.fh = (nfsv2fh_t *)sna.fh;
    374 		na.flags = sna.flags;
    375 		na.wsize = sna.wsize;
    376 		na.rsize = sna.rsize;
    377 		na.timeo = sna.timeo;
    378 		na.retrans = sna.retrans;
    379 		na.hostname = sna.hostname;
    380 
    381 		if (error = copyout(&sa, na.addr, sizeof sa))
    382 			return (error);
    383 		if (error = copyout(&na, uap->data, sizeof na))
    384 			return (error);
    385 	}
    386 	return (mount(p, uap, retval));
    387 }
    388 
    389 #if defined(NFSCLIENT)
    390 async_daemon(p, uap, retval)
    391       struct proc *p;
    392       void *uap;
    393       register_t *retval;
    394 {
    395       struct nfssvc_args {
    396               int flag;
    397               caddr_t argp;
    398       } args;
    399 
    400       args.flag = NFSSVC_BIOD;
    401       return nfssvc(p, &args, retval);
    402 }
    403 #endif /* NFSCLIENT */
    404 
    405 struct sun_sigpending_args {
    406 	int	*mask;
    407 };
    408 sun_sigpending(p, v, retval)
    409 	struct proc *p;
    410 	void *v;
    411 	register_t *retval;
    412 {
    413 	struct sun_sigpending_args *uap = v;
    414 	int mask = p->p_siglist & p->p_sigmask;
    415 
    416 	return (copyout((caddr_t)&mask, (caddr_t)uap->mask, sizeof(int)));
    417 }
    418 
    419 #if 0
    420 /* XXX: Temporary until sys/dir.h, include/dirent.h and sys/dirent.h are fixed */
    421 struct dirent {
    422 	u_long	d_fileno;		/* file number of entry */
    423 	u_short	d_reclen;		/* length of this record */
    424 	u_short	d_namlen;		/* length of string in d_name */
    425 	char	d_name[255 + 1];	/* name must be no longer than this */
    426 };
    427 #endif
    428 
    429 /*
    430  * Here is the sun layout.  (Compare the BSD layout in <sys/dirent.h>.)
    431  * We can assume big-endian, so the BSD d_type field is just the high
    432  * byte of the SunOS d_namlen field, after adjusting for the extra "long".
    433  */
    434 struct sun_dirent {
    435 	long	d_off;
    436 	u_long	d_fileno;
    437 	u_short	d_reclen;
    438 	u_short	d_namlen;
    439 	char	d_name[256];
    440 };
    441 
    442 /*
    443  * Read Sun-style directory entries.  We suck them into kernel space so
    444  * that they can be massaged before being copied out to user code.  Like
    445  * SunOS, we squish out `empty' entries.
    446  *
    447  * This is quite ugly, but what do you expect from compatibility code?
    448  */
    449 struct sun_getdents_args {
    450 	int	fd;
    451 	char	*buf;
    452 	int	nbytes;
    453 };
    454 sun_getdents(p, v, retval)
    455 	struct proc *p;
    456 	void *v;
    457 	register_t *retval;
    458 {
    459 	register struct sun_getdents_args *uap = v;
    460 	register struct vnode *vp;
    461 	register caddr_t inp, buf;	/* BSD-format */
    462 	register int len, reclen;	/* BSD-format */
    463 	register caddr_t outp;		/* Sun-format */
    464 	register int resid;		/* Sun-format */
    465 	struct file *fp;
    466 	struct uio auio;
    467 	struct iovec aiov;
    468 	off_t off;			/* true file offset */
    469 	long soff;			/* Sun file offset */
    470 	int buflen, error, eofflag;
    471 #define	BSD_DIRENT(cp) ((struct dirent *)(cp))
    472 #define	SUN_RECLEN(reclen) (reclen + sizeof(long))
    473 
    474 	if ((error = getvnode(p->p_fd, uap->fd, &fp)) != 0)
    475 		return (error);
    476 	if ((fp->f_flag & FREAD) == 0)
    477 		return (EBADF);
    478 	vp = (struct vnode *)fp->f_data;
    479 	if (vp->v_type != VDIR)	/* XXX  vnode readdir op should do this */
    480 		return (EINVAL);
    481 	buflen = min(MAXBSIZE, uap->nbytes);
    482 	buf = malloc(buflen, M_TEMP, M_WAITOK);
    483 	VOP_LOCK(vp);
    484 	off = fp->f_offset;
    485 again:
    486 	aiov.iov_base = buf;
    487 	aiov.iov_len = buflen;
    488 	auio.uio_iov = &aiov;
    489 	auio.uio_iovcnt = 1;
    490 	auio.uio_rw = UIO_READ;
    491 	auio.uio_segflg = UIO_SYSSPACE;
    492 	auio.uio_procp = p;
    493 	auio.uio_resid = buflen;
    494 	auio.uio_offset = off;
    495 	/*
    496 	 * First we read into the malloc'ed buffer, then
    497 	 * we massage it into user space, one record at a time.
    498 	 */
    499 	if (error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, (u_long *)0,
    500 	    0))
    501 		goto out;
    502 	inp = buf;
    503 	outp = uap->buf;
    504 	resid = uap->nbytes;
    505 	if ((len = buflen - auio.uio_resid) == 0)
    506 		goto eof;
    507 	for (; len > 0; len -= reclen) {
    508 		reclen = ((struct dirent *)inp)->d_reclen;
    509 		if (reclen & 3)
    510 			panic("sun_getdents");
    511 		off += reclen;		/* each entry points to next */
    512 		if (BSD_DIRENT(inp)->d_fileno == 0) {
    513 			inp += reclen;	/* it is a hole; squish it out */
    514 			continue;
    515 		}
    516 		if (reclen > len || resid < SUN_RECLEN(reclen)) {
    517 			/* entry too big for buffer, so just stop */
    518 			outp++;
    519 			break;
    520 		}
    521 		/*
    522 		 * Massage in place to make a Sun-shaped dirent (otherwise
    523 		 * we have to worry about touching user memory outside of
    524 		 * the copyout() call).
    525 		 */
    526 		BSD_DIRENT(inp)->d_reclen = SUN_RECLEN(reclen);
    527 #if notdef
    528 		BSD_DIRENT(inp)->d_type = 0; 	/* 4.4 specific */
    529 #endif
    530 		soff = off;
    531 		if ((error = copyout((caddr_t)&soff, outp, sizeof soff)) != 0 ||
    532 		    (error = copyout(inp, outp + sizeof soff, reclen)) != 0)
    533 			goto out;
    534 		/* advance past this real entry */
    535 		inp += reclen;
    536 		/* advance output past Sun-shaped entry */
    537 		outp += SUN_RECLEN(reclen);
    538 		resid -= SUN_RECLEN(reclen);
    539 	}
    540 	/* if we squished out the whole block, try again */
    541 	if (outp == uap->buf)
    542 		goto again;
    543 	fp->f_offset = off;		/* update the vnode offset */
    544 eof:
    545 	*retval = uap->nbytes - resid;
    546 out:
    547 	VOP_UNLOCK(vp);
    548 	free(buf, M_TEMP);
    549 	return (error);
    550 }
    551 
    552 #define	SUN__MAP_NEW	0x80000000	/* if not, old mmap & cannot handle */
    553 
    554 struct sun_mmap_args {
    555 	caddr_t	addr;
    556 	size_t	len;
    557 	int	prot;
    558 	int	flags;
    559 	int	fd;
    560 	long	off;		/* not off_t! */
    561 	off_t	qoff;		/* created here and fed to mmap() */
    562 };
    563 sun_mmap(p, v, retval)
    564 	register struct proc *p;
    565 	void *v;
    566 	register_t *retval;
    567 {
    568 	register struct sun_mmap_args *uap = v;
    569 	register struct filedesc *fdp;
    570 	register struct file *fp;
    571 	register struct vnode *vp;
    572 
    573 	/*
    574 	 * Verify the arguments.
    575 	 */
    576 	if (uap->prot & ~(PROT_READ|PROT_WRITE|PROT_EXEC))
    577 		return (EINVAL);			/* XXX still needed? */
    578 
    579 	if ((uap->flags & SUN__MAP_NEW) == 0)
    580 		return (EINVAL);
    581 	uap->flags &= ~SUN__MAP_NEW;
    582 
    583 	if ((uap->flags & MAP_FIXED) == 0 &&
    584 		uap->addr != 0 &&
    585 		uap->addr < (caddr_t)round_page(p->p_vmspace->vm_daddr+MAXDSIZ))
    586 		uap->addr = (caddr_t)round_page(p->p_vmspace->vm_daddr+MAXDSIZ);
    587 
    588 	/*
    589 	 * Special case: if fd refers to /dev/zero, map as MAP_ANON.  (XXX)
    590 	 */
    591 	fdp = p->p_fd;
    592 	if ((unsigned)uap->fd < fdp->fd_nfiles &&			/*XXX*/
    593 	    (fp = fdp->fd_ofiles[uap->fd]) != NULL &&			/*XXX*/
    594 	    fp->f_type == DTYPE_VNODE &&				/*XXX*/
    595 	    (vp = (struct vnode *)fp->f_data)->v_type == VCHR &&	/*XXX*/
    596 	    iszerodev(vp->v_rdev)) {					/*XXX*/
    597 		uap->flags |= MAP_ANON;
    598 		uap->fd = -1;
    599 	}
    600 
    601 	uap->qoff = uap->off;
    602 	return (mmap(p, uap, retval));
    603 }
    604 
    605 #define	MC_SYNC		1
    606 #define	MC_LOCK		2
    607 #define	MC_UNLOCK	3
    608 #define	MC_ADVISE	4
    609 #define	MC_LOCKAS	5
    610 #define	MC_UNLOCKAS	6
    611 
    612 struct sun_mctl_args {
    613 	caddr_t	addr;
    614 	size_t	len;
    615 	int	func;
    616 	void	*arg;
    617 };
    618 sun_mctl(p, v, retval)
    619 	register struct proc *p;
    620 	void *v;
    621 	register_t *retval;
    622 {
    623 	register struct sun_mctl_args *uap = v;
    624 
    625 	switch (uap->func) {
    626 
    627 	case MC_ADVISE:		/* ignore for now */
    628 		return (0);
    629 
    630 	case MC_SYNC:		/* translate to msync */
    631 		return (msync(p, uap, retval));
    632 
    633 	default:
    634 		return (EINVAL);
    635 	}
    636 }
    637 
    638 struct sun_setsockopt_args {
    639 	int	s;
    640 	int	level;
    641 	int	name;
    642 	caddr_t	val;
    643 	int	valsize;
    644 };
    645 sun_setsockopt(p, v, retval)
    646 	struct proc *p;
    647 	void *v;
    648 	register_t *retval;
    649 {
    650 	register struct sun_setsockopt_args *uap = v;
    651 	struct file *fp;
    652 	struct mbuf *m = NULL;
    653 	int error;
    654 
    655 	if (error = getsock(p->p_fd, uap->s, &fp))
    656 		return (error);
    657 #define	SO_DONTLINGER (~SO_LINGER)
    658 	if (uap->name == SO_DONTLINGER) {
    659 		m = m_get(M_WAIT, MT_SOOPTS);
    660 		if (m == NULL)
    661 			return (ENOBUFS);
    662 		mtod(m, struct linger *)->l_onoff = 0;
    663 		m->m_len = sizeof(struct linger);
    664 		return (sosetopt((struct socket *)fp->f_data, uap->level,
    665 		    SO_LINGER, m));
    666 	}
    667 	if (uap->valsize > MLEN)
    668 		return (EINVAL);
    669 	if (uap->val) {
    670 		m = m_get(M_WAIT, MT_SOOPTS);
    671 		if (m == NULL)
    672 			return (ENOBUFS);
    673 		if (error = copyin(uap->val, mtod(m, caddr_t),
    674 		    (u_int)uap->valsize)) {
    675 			(void) m_free(m);
    676 			return (error);
    677 		}
    678 		m->m_len = uap->valsize;
    679 	}
    680 	return (sosetopt((struct socket *)fp->f_data, uap->level,
    681 	    uap->name, m));
    682 }
    683 
    684 struct sun_fchroot_args {
    685 	int	fdes;
    686 };
    687 sun_fchroot(p, v, retval)
    688 	register struct proc *p;
    689 	void *v;
    690 	register_t *retval;
    691 {
    692 	register struct sun_fchroot_args *uap = v;
    693 	register struct filedesc *fdp = p->p_fd;
    694 	register struct vnode *vp;
    695 	struct file *fp;
    696 	int error;
    697 
    698 	if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
    699 		return (error);
    700 	if ((error = getvnode(fdp, uap->fdes, &fp)) != 0)
    701 		return (error);
    702 	vp = (struct vnode *)fp->f_data;
    703 	VOP_LOCK(vp);
    704 	if (vp->v_type != VDIR)
    705 		error = ENOTDIR;
    706 	else
    707 		error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p);
    708 	VOP_UNLOCK(vp);
    709 	if (error)
    710 		return (error);
    711 	VREF(vp);
    712 	if (fdp->fd_rdir != NULL)
    713 		vrele(fdp->fd_rdir);
    714 	fdp->fd_rdir = vp;
    715 	return (0);
    716 }
    717 
    718 /*
    719  * XXX: This needs cleaning up.
    720  */
    721 sun_auditsys()
    722 {
    723 	return 0;
    724 }
    725 
    726 struct sun_utsname {
    727 	char    sysname[9];
    728 	char    nodename[9];
    729 	char    nodeext[65-9];
    730 	char    release[9];
    731 	char    version[9];
    732 	char    machine[9];
    733 };
    734 
    735 struct sun_uname_args {
    736 	struct sun_utsname *name;
    737 };
    738 sun_uname(p, v, retval)
    739 	struct proc *p;
    740 	void *v;
    741 	register_t *retval;
    742 {
    743 	struct sun_uname_args *uap = v;
    744 	struct sun_utsname sut;
    745 	extern char ostype[], machine[], osrelease[];
    746 
    747 	bzero(&sut, sizeof(sut));
    748 
    749 	bcopy(ostype, sut.sysname, sizeof(sut.sysname) - 1);
    750 	bcopy(hostname, sut.nodename, sizeof(sut.nodename));
    751 	sut.nodename[sizeof(sut.nodename)-1] = '\0';
    752 	bcopy(osrelease, sut.release, sizeof(sut.release) - 1);
    753 	bcopy("1", sut.version, sizeof(sut.version) - 1);
    754 	bcopy(machine, sut.machine, sizeof(sut.machine) - 1);
    755 
    756 	return copyout((caddr_t)&sut, (caddr_t)uap->name, sizeof(struct sun_utsname));
    757 }
    758 
    759 struct sun_setpgid_args {
    760 	int	pid;	/* target process id */
    761 	int	pgid;	/* target pgrp id */
    762 };
    763 int
    764 sun_setpgid(p, v, retval)
    765 	struct proc *p;
    766 	void *v;
    767 	register_t *retval;
    768 {
    769 	struct sun_setpgid_args *uap = v;
    770 
    771 	/*
    772 	 * difference to our setpgid call is to include backwards
    773 	 * compatibility to pre-setsid() binaries. Do setsid()
    774 	 * instead of setpgid() in those cases where the process
    775 	 * tries to create a new session the old way.
    776 	 */
    777 	if (!uap->pgid && (!uap->pid || uap->pid == p->p_pid))
    778 		return setsid(p, uap, retval);
    779 	else
    780 		return setpgid(p, uap, retval);
    781 }
    782 
    783 struct sun_open_args {
    784 	char	*fname;
    785 	int	fmode;
    786 	int	crtmode;
    787 };
    788 sun_open(p, v, retval)
    789 	struct proc *p;
    790 	void *v;
    791 	register_t *retval;
    792 {
    793 	struct sun_open_args *uap = v;
    794 	int l, r;
    795 	int noctty = uap->fmode & 0x8000;
    796 	int ret;
    797 
    798 	/* convert mode into NetBSD mode */
    799 	l = uap->fmode;
    800 	r =	(l & (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800));
    801 	r |=	((l & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0);
    802 	r |=	((l & 0x0080) ? O_SHLOCK : 0);
    803 	r |=	((l & 0x0100) ? O_EXLOCK : 0);
    804 	r |=	((l & 0x2000) ? O_FSYNC : 0);
    805 
    806 	uap->fmode = r;
    807 	ret = open(p, uap, retval);
    808 
    809 	if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
    810 		struct filedesc *fdp = p->p_fd;
    811 		struct file *fp = fdp->fd_ofiles[*retval];
    812 
    813 		/* ignore any error, just give it a try */
    814 		if (fp->f_type == DTYPE_VNODE)
    815 			(fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t) 0, p);
    816 	}
    817 	return ret;
    818 }
    819 
    820 #if defined (NFSSERVER)
    821 struct nfssvc_args {
    822 	int	fd;
    823 	caddr_t mskval;
    824 	int msklen;
    825 	caddr_t mtchval;
    826 	int mtchlen;
    827 };
    828 struct sun_nfssvc_args {
    829 	int	fd;
    830 };
    831 sun_nfssvc(p, v, retval)
    832 	struct proc *p;
    833 	void *v;
    834 	register_t *retval;
    835 {
    836 	struct sun_nfssvc_args *uap = v;
    837 	struct nfssvc_args outuap;
    838 	struct sockaddr sa;
    839 	int error;
    840 	extern char sigcode[], esigcode[];
    841 
    842 	bzero(&outuap, sizeof outuap);
    843 	outuap.fd = uap->fd;
    844 	outuap.mskval = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
    845 	outuap.msklen = sizeof sa;
    846 	outuap.mtchval = outuap.mskval + sizeof sa;
    847 	outuap.mtchlen = sizeof sa;
    848 
    849 	bzero(&sa, sizeof sa);
    850 	if (error = copyout(&sa, outuap.mskval, outuap.msklen))
    851 		return (error);
    852 	if (error = copyout(&sa, outuap.mtchval, outuap.mtchlen))
    853 		return (error);
    854 
    855 	return nfssvc(p, &outuap, retval);
    856 }
    857 #endif /* NFSSERVER */
    858 
    859 struct sun_ustat {
    860 	daddr_t	f_tfree;	/* total free */
    861 	ino_t	f_tinode;	/* total inodes free */
    862 	char	f_fname[6];	/* filsys name */
    863 	char	f_fpack[6];	/* filsys pack name */
    864 };
    865 struct sun_ustat_args {
    866 	int	dev;
    867 	struct	sun_ustat *buf;
    868 };
    869 sun_ustat(p, v, retval)
    870 	struct proc *p;
    871 	void *v;
    872 	register_t *retval;
    873 {
    874 	struct sun_ustat_args *uap = v;
    875 	struct sun_ustat us;
    876 	int error;
    877 
    878 	bzero(&us, sizeof us);
    879 
    880 	/*
    881 	 * XXX: should set f_tfree and f_tinode at least
    882 	 * How do we translate dev -> fstat? (and then to sun_ustat)
    883 	 */
    884 
    885 	if (error = copyout(&us, uap->buf, sizeof us))
    886 		return (error);
    887 	return 0;
    888 }
    889 
    890 struct sun_quotactl_args {
    891 	int	cmd;
    892 	char	*special;
    893 	int	uid;
    894 	caddr_t	addr;
    895 };
    896 sun_quotactl(p, v, retval)
    897 	struct proc *p;
    898 	void *v;
    899 	register_t *retval;
    900 {
    901 	struct sun_quotactl_args *uap = v;
    902 
    903 	return EINVAL;
    904 }
    905 
    906 sun_vhangup(p, uap, retval)
    907 	struct proc *p;
    908 	void *uap;
    909 	register_t *retval;
    910 {
    911 	return 0;
    912 }
    913 
    914 struct sun_statfs {
    915 	long	f_type;		/* type of info, zero for now */
    916 	long	f_bsize;	/* fundamental file system block size */
    917 	long	f_blocks;	/* total blocks in file system */
    918 	long	f_bfree;	/* free blocks */
    919 	long	f_bavail;	/* free blocks available to non-super-user */
    920 	long	f_files;	/* total file nodes in file system */
    921 	long	f_ffree;	/* free file nodes in fs */
    922 	fsid_t	f_fsid;		/* file system id */
    923 	long	f_spare[7];	/* spare for later */
    924 };
    925 static
    926 sunstatfs(sp, buf)
    927 	struct statfs *sp;
    928 	caddr_t buf;
    929 {
    930 	struct sun_statfs ssfs;
    931 
    932 	bzero(&ssfs, sizeof ssfs);
    933 	ssfs.f_type = 0;
    934 	ssfs.f_bsize = sp->f_bsize;
    935 	ssfs.f_blocks = sp->f_blocks;
    936 	ssfs.f_bfree = sp->f_bfree;
    937 	ssfs.f_bavail = sp->f_bavail;
    938 	ssfs.f_files = sp->f_files;
    939 	ssfs.f_ffree = sp->f_ffree;
    940 	ssfs.f_fsid = sp->f_fsid;
    941 	return copyout((caddr_t)&ssfs, buf, sizeof ssfs);
    942 }
    943 
    944 struct sun_statfs_args {
    945 	char	*path;
    946 	struct	sun_statfs *buf;
    947 };
    948 sun_statfs(p, v, retval)
    949 	struct proc *p;
    950 	void *v;
    951 	register_t *retval;
    952 {
    953 	struct sun_statfs_args *uap = v;
    954 	register struct mount *mp;
    955 	register struct statfs *sp;
    956 	int error;
    957 	struct nameidata nd;
    958 
    959 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, uap->path, p);
    960 	if (error = namei(&nd))
    961 		return (error);
    962 	mp = nd.ni_vp->v_mount;
    963 	sp = &mp->mnt_stat;
    964 	vrele(nd.ni_vp);
    965 	if (error = VFS_STATFS(mp, sp, p))
    966 		return (error);
    967 	sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
    968 	return sunstatfs(sp, (caddr_t)uap->buf);
    969 }
    970 
    971 struct sun_fstatfs_args {
    972 	int	fd;
    973 	struct	sun_statfs *buf;
    974 };
    975 sun_fstatfs(p, v, retval)
    976 	struct proc *p;
    977 	void *v;
    978 	register_t *retval;
    979 {
    980 	struct sun_fstatfs_args *uap = v;
    981 	struct file *fp;
    982 	struct mount *mp;
    983 	register struct statfs *sp;
    984 	int error;
    985 
    986 	if (error = getvnode(p->p_fd, uap->fd, &fp))
    987 		return (error);
    988 	mp = ((struct vnode *)fp->f_data)->v_mount;
    989 	sp = &mp->mnt_stat;
    990 	if (error = VFS_STATFS(mp, sp, p))
    991 		return (error);
    992 	sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
    993 	return sunstatfs(sp, (caddr_t)uap->buf);
    994 }
    995 
    996 struct sun_exportfs_args {
    997 	char	*path;
    998 	char	*ex;			/* struct sun_export * */
    999 };
   1000 sun_exportfs(p, v, retval)
   1001 	struct proc *p;
   1002 	void *v;
   1003 	register_t *retval;
   1004 {
   1005 	struct sun_exportfs_args *uap = v;
   1006 
   1007 	/*
   1008 	 * XXX: should perhaps translate into a mount(2)
   1009 	 * with MOUNT_EXPORT?
   1010 	 */
   1011 	return 0;
   1012 }
   1013 
   1014 struct sun_mknod_args {
   1015 	char	*fname;
   1016 	int	fmode;
   1017 	int	dev;
   1018 };
   1019 
   1020 sun_mknod(p, v, retval)
   1021 	struct proc *p;
   1022 	void *v;
   1023 	register_t *retval;
   1024 {
   1025 	struct sun_mknod_args *uap = v;
   1026 
   1027 	if (S_ISFIFO(uap->fmode))
   1028 		return mkfifo(p, uap, retval);
   1029 
   1030 	return mknod(p, uap, retval);
   1031 }
   1032 
   1033 #define SUN_SC_ARG_MAX		1
   1034 #define SUN_SC_CHILD_MAX	2
   1035 #define SUN_SC_CLK_TCK		3
   1036 #define SUN_SC_NGROUPS_MAX	4
   1037 #define SUN_SC_OPEN_MAX		5
   1038 #define SUN_SC_JOB_CONTROL	6
   1039 #define SUN_SC_SAVED_IDS	7
   1040 #define SUN_SC_VERSION		8
   1041 
   1042 struct sun_sysconf_args {
   1043 	int	name;
   1044 };
   1045 
   1046 sun_sysconf(p, v, retval)
   1047 	struct proc *p;
   1048 	void *v;
   1049 	register_t *retval;
   1050 {
   1051 	struct sun_sysconf_args *uap = v;
   1052 	extern int maxfiles;
   1053 
   1054 	switch(uap->name) {
   1055 	case SUN_SC_ARG_MAX:
   1056 		*retval = ARG_MAX;
   1057 		break;
   1058 	case SUN_SC_CHILD_MAX:
   1059 		*retval = maxproc;
   1060 		break;
   1061 	case SUN_SC_CLK_TCK:
   1062 		*retval = 60;		/* should this be `hz', ie. 100? */
   1063 		break;
   1064 	case SUN_SC_NGROUPS_MAX:
   1065 		*retval = NGROUPS_MAX;
   1066 		break;
   1067 	case SUN_SC_OPEN_MAX:
   1068 		*retval = maxfiles;
   1069 		break;
   1070 	case SUN_SC_JOB_CONTROL:
   1071 		*retval = 1;
   1072 		break;
   1073 	case SUN_SC_SAVED_IDS:
   1074 #ifdef _POSIX_SAVED_IDS
   1075 		*retval = 1;
   1076 #else
   1077 		*retval = 0;
   1078 #endif
   1079 		break;
   1080 	case SUN_SC_VERSION:
   1081 		*retval = 198808;
   1082 		break;
   1083 	default:
   1084 		return EINVAL;
   1085 	}
   1086 	return 0;
   1087 }
   1088 
   1089 struct ultrix_sigcleanup_args {
   1090 	struct sigcontext *sigcntxp;
   1091 };
   1092 
   1093 int ultrix_sigcleanup(p, v, retval)
   1094 	struct proc *p;
   1095 	void *v;
   1096 	register_t *retval;
   1097 {
   1098 	struct ultrix_sigcleanup_args *uap = v;
   1099 
   1100 	sigreturn (p, (struct sigreturn_args *)uap, retval);
   1101 }
   1102