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sunos_misc.c revision 1.29
      1 /*
      2  * Copyright (c) 1992, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * This software was developed by the Computer Systems Engineering group
      6  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      7  * contributed to Berkeley.
      8  *
      9  * All advertising materials mentioning features or use of this software
     10  * must display the following acknowledgement:
     11  *	This product includes software developed by the University of
     12  *	California, Lawrence Berkeley Laboratory.
     13  *
     14  * Redistribution and use in source and binary forms, with or without
     15  * modification, are permitted provided that the following conditions
     16  * are met:
     17  * 1. Redistributions of source code must retain the above copyright
     18  *    notice, this list of conditions and the following disclaimer.
     19  * 2. Redistributions in binary form must reproduce the above copyright
     20  *    notice, this list of conditions and the following disclaimer in the
     21  *    documentation and/or other materials provided with the distribution.
     22  * 3. All advertising materials mentioning features or use of this software
     23  *    must display the following acknowledgement:
     24  *	This product includes software developed by the University of
     25  *	California, Berkeley and its contributors.
     26  * 4. Neither the name of the University nor the names of its contributors
     27  *    may be used to endorse or promote products derived from this software
     28  *    without specific prior written permission.
     29  *
     30  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     31  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     32  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     33  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     34  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     35  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     36  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     37  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     38  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     39  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     40  * SUCH DAMAGE.
     41  *
     42  *	@(#)sun_misc.c	8.1 (Berkeley) 6/18/93
     43  *
     44  * from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp
     45  * $Id: sunos_misc.c,v 1.29 1994/06/22 08:24:53 pk Exp $
     46  */
     47 
     48 /*
     49  * SunOS compatibility module.
     50  *
     51  * SunOS system calls that are implemented differently in BSD are
     52  * handled here.
     53  */
     54 
     55 #include <sys/param.h>
     56 #include <sys/systm.h>
     57 #include <sys/namei.h>
     58 #include <sys/proc.h>
     59 #include <sys/dir.h>
     60 #include <sys/file.h>
     61 #include <sys/stat.h>
     62 #include <sys/filedesc.h>
     63 #include <sys/ioctl.h>
     64 #include <sys/kernel.h>
     65 #include <sys/exec.h>
     66 #include <sys/malloc.h>
     67 #include <sys/mbuf.h>
     68 #include <sys/mman.h>
     69 #include <sys/mount.h>
     70 #include <sys/resource.h>
     71 #include <sys/resourcevar.h>
     72 #include <sys/signal.h>
     73 #include <sys/signalvar.h>
     74 #include <sys/socket.h>
     75 #include <sys/vnode.h>
     76 #include <sys/uio.h>
     77 #include <sys/wait.h>
     78 #include <sys/utsname.h>
     79 #include <sys/unistd.h>
     80 
     81 #include <netinet/in.h>
     82 
     83 #include <miscfs/specfs/specdev.h>
     84 
     85 #include <nfs/rpcv2.h>
     86 #include <nfs/nfsv2.h>
     87 #include <nfs/nfs.h>
     88 
     89 #include <vm/vm.h>
     90 
     91 struct sun_wait4_args {
     92 	int	pid;
     93 	int	*status;
     94 	int	options;
     95 	struct	rusage *rusage;
     96 #ifdef COMPAT_43
     97 	int	compat;		/* pseudo */
     98 #endif
     99 };
    100 sun_wait4(p, uap, retval)
    101 	struct proc *p;
    102 	struct sun_wait4_args *uap;
    103 	int *retval;
    104 {
    105 
    106 	if (uap->pid == 0)
    107 		uap->pid = WAIT_ANY;
    108 	return (wait4(p, uap, retval));
    109 }
    110 
    111 struct sun_creat_args {
    112 	char	*fname;
    113 	int	fmode;
    114 };
    115 sun_creat(p, uap, retval)
    116 	struct proc *p;
    117 	struct sun_creat_args *uap;
    118 	int *retval;
    119 {
    120 	struct args {
    121 		char	*fname;
    122 		int	mode;
    123 		int	crtmode;
    124 	} openuap;
    125 
    126 	openuap.fname = uap->fname;
    127 	openuap.crtmode = uap->fmode;
    128 	openuap.mode = O_WRONLY | O_CREAT | O_TRUNC;
    129 	return (open(p, &openuap, retval));
    130 }
    131 
    132 struct sun_execv_args {
    133 	char	*fname;
    134 	char	**argp;
    135 	char	**envp;		/* pseudo */
    136 };
    137 sun_execv(p, uap, retval)
    138 	struct proc *p;
    139 	struct sun_execv_args *uap;
    140 	int *retval;
    141 {
    142 
    143 	uap->envp = NULL;
    144 	return (execve(p, uap, retval));
    145 }
    146 
    147 struct sun_omsync_args {
    148 	caddr_t	addr;
    149 	int	len;
    150 	int	flags;
    151 };
    152 sun_omsync(p, uap, retval)
    153 	struct proc *p;
    154 	struct sun_omsync_args *uap;
    155 	int *retval;
    156 {
    157 
    158 	if (uap->flags)
    159 		return (EINVAL);
    160 	return (msync(p, uap, retval));
    161 }
    162 
    163 struct sun_unmount_args {
    164 	char	*name;
    165 	int	flags;	/* pseudo */
    166 };
    167 sun_unmount(p, uap, retval)
    168 	struct proc *p;
    169 	struct sun_unmount_args *uap;
    170 	int *retval;
    171 {
    172 
    173 	uap->flags = 0;
    174 	return (unmount(p, uap, retval));
    175 }
    176 
    177 #define	SUNM_RDONLY	0x01	/* mount fs read-only */
    178 #define	SUNM_NOSUID	0x02	/* mount fs with setuid disallowed */
    179 #define	SUNM_NEWTYPE	0x04	/* type is string (char *), not int */
    180 #define	SUNM_GRPID	0x08	/* (bsd semantics; ignored) */
    181 #define	SUNM_REMOUNT	0x10	/* update existing mount */
    182 #define	SUNM_NOSUB	0x20	/* prevent submounts (rejected) */
    183 #define	SUNM_MULTI	0x40	/* (ignored) */
    184 #define	SUNM_SYS5	0x80	/* Sys 5-specific semantics (rejected) */
    185 
    186 struct	sun_nfs_args {
    187 	struct	sockaddr_in *addr;	/* file server address */
    188 	caddr_t	fh;			/* file handle to be mounted */
    189 	int	flags;			/* flags */
    190 	int	wsize;			/* write size in bytes */
    191 	int	rsize;			/* read size in bytes */
    192 	int	timeo;			/* initial timeout in .1 secs */
    193 	int	retrans;		/* times to retry send */
    194 	char	*hostname;		/* server's hostname */
    195 	int	acregmin;		/* attr cache file min secs */
    196 	int	acregmax;		/* attr cache file max secs */
    197 	int	acdirmin;		/* attr cache dir min secs */
    198 	int	acdirmax;		/* attr cache dir max secs */
    199 	char	*netname;		/* server's netname */
    200 	struct	pathcnf *pathconf;	/* static pathconf kludge */
    201 };
    202 
    203 struct sun_mount_args {
    204 	char	*type;
    205 	char	*dir;
    206 	int	flags;
    207 	caddr_t	data;
    208 };
    209 sun_mount(p, uap, retval)
    210 	struct proc *p;
    211 	struct sun_mount_args *uap;
    212 	int *retval;
    213 {
    214 	int oflags = uap->flags, nflags, error;
    215 	extern char sigcode[], esigcode[];
    216 	char fsname[MFSNAMELEN];
    217 
    218 #define	szsigcode	(esigcode - sigcode)
    219 
    220 	if (oflags & (SUNM_NOSUB | SUNM_SYS5))
    221 		return (EINVAL);
    222 	if ((oflags & SUNM_NEWTYPE) == 0)
    223 		return (EINVAL);
    224 	nflags = 0;
    225 	if (oflags & SUNM_RDONLY)
    226 		nflags |= MNT_RDONLY;
    227 	if (oflags & SUNM_NOSUID)
    228 		nflags |= MNT_NOSUID;
    229 	if (oflags & SUNM_REMOUNT)
    230 		nflags |= MNT_UPDATE;
    231 	uap->flags = nflags;
    232 
    233 	if (error = copyinstr((caddr_t)uap->type, fsname, sizeof fsname, (u_int *)0))
    234 		return (error);
    235 
    236 	if (strcmp(fsname, "4.2") == 0) {
    237 		uap->type = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
    238 		if (error = copyout("ufs", uap->type, sizeof("ufs")))
    239 			return (error);
    240 	} else if (strcmp(fsname, "nfs") == 0) {
    241 		struct sun_nfs_args sna;
    242 		struct sockaddr_in sain;
    243 		struct nfs_args na;
    244 		struct sockaddr sa;
    245 
    246 		if (error = copyin(uap->data, &sna, sizeof sna))
    247 			return (error);
    248 		if (error = copyin(sna.addr, &sain, sizeof sain))
    249 			return (error);
    250 		bcopy(&sain, &sa, sizeof sa);
    251 		sa.sa_len = sizeof(sain);
    252 		uap->data = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
    253 		na.addr = (struct sockaddr *)((int)uap->data + sizeof na);
    254 		na.addrlen = sizeof(struct sockaddr);
    255 		na.sotype = SOCK_DGRAM;
    256 		na.proto = IPPROTO_UDP;
    257 		na.fh = (nfsv2fh_t *)sna.fh;
    258 		na.flags = sna.flags;
    259 		na.wsize = sna.wsize;
    260 		na.rsize = sna.rsize;
    261 		na.timeo = sna.timeo;
    262 		na.retrans = sna.retrans;
    263 		na.hostname = sna.hostname;
    264 
    265 		if (error = copyout(&sa, na.addr, sizeof sa))
    266 			return (error);
    267 		if (error = copyout(&na, uap->data, sizeof na))
    268 			return (error);
    269 	}
    270 	return (mount(p, uap, retval));
    271 }
    272 
    273 #if defined(NFSCLIENT)
    274 async_daemon(p, uap, retval)
    275 	struct proc *p;
    276 	void *uap;
    277 	int *retval;
    278 {
    279 	struct nfssvc_args {
    280 		int flag;
    281 		caddr_t argp;
    282 	} args;
    283 
    284 	args.flag = NFSSVC_BIOD;
    285 	return nfssvc(p, &args, retval);
    286 }
    287 #endif /* NFSCLIENT */
    288 
    289 struct sun_sigpending_args {
    290 	int	*mask;
    291 };
    292 sun_sigpending(p, uap, retval)
    293 	struct proc *p;
    294 	struct sun_sigpending_args *uap;
    295 	int *retval;
    296 {
    297 	int mask = p->p_siglist & p->p_sigmask;
    298 
    299 	return (copyout((caddr_t)&mask, (caddr_t)uap->mask, sizeof(int)));
    300 }
    301 
    302 /*
    303  * Here is the sun layout.  (Compare the BSD layout in <sys/dirent.h>.)
    304  * We can assume big-endian, so the BSD d_type field is just the high
    305  * byte of the SunOS d_namlen field, after adjusting for the extra "long".
    306  */
    307 struct sun_dirent {
    308 	long	d_off;
    309 	u_long	d_fileno;
    310 	u_short	d_reclen;
    311 	u_short	d_namlen;
    312 	char	d_name[256];
    313 };
    314 
    315 /*
    316  * Read Sun-style directory entries.  We suck them into kernel space so
    317  * that they can be massaged before being copied out to user code.  Like
    318  * SunOS, we squish out `empty' entries.
    319  *
    320  * This is quite ugly, but what do you expect from compatibility code?
    321  */
    322 struct sun_getdents_args {
    323 	int	fd;
    324 	char	*buf;
    325 	int	nbytes;
    326 };
    327 sun_getdents(p, uap, retval)
    328 	struct proc *p;
    329 	register struct sun_getdents_args *uap;
    330 	int *retval;
    331 {
    332 	register struct vnode *vp;
    333 	register caddr_t inp, buf;	/* BSD-format */
    334 	register int len, reclen;	/* BSD-format */
    335 	register caddr_t outp;		/* Sun-format */
    336 	register int resid;		/* Sun-format */
    337 	struct file *fp;
    338 	struct uio auio;
    339 	struct iovec aiov;
    340 	off_t off;			/* true file offset */
    341 	long soff;			/* Sun file offset */
    342 	int buflen, error, eofflag;
    343 #define	BSD_DIRENT(cp) ((struct dirent *)(cp))
    344 #define	SUN_RECLEN(reclen) (reclen + sizeof(long))
    345 
    346 	if ((error = getvnode(p->p_fd, uap->fd, &fp)) != 0)
    347 		return (error);
    348 	if ((fp->f_flag & FREAD) == 0)
    349 		return (EBADF);
    350 	vp = (struct vnode *)fp->f_data;
    351 	if (vp->v_type != VDIR)	/* XXX  vnode readdir op should do this */
    352 		return (EINVAL);
    353 	buflen = min(MAXBSIZE, uap->nbytes);
    354 	buf = malloc(buflen, M_TEMP, M_WAITOK);
    355 	VOP_LOCK(vp);
    356 	off = fp->f_offset;
    357 again:
    358 	aiov.iov_base = buf;
    359 	aiov.iov_len = buflen;
    360 	auio.uio_iov = &aiov;
    361 	auio.uio_iovcnt = 1;
    362 	auio.uio_rw = UIO_READ;
    363 	auio.uio_segflg = UIO_SYSSPACE;
    364 	auio.uio_procp = p;
    365 	auio.uio_resid = buflen;
    366 	auio.uio_offset = off;
    367 	/*
    368 	 * First we read into the malloc'ed buffer, then
    369 	 * we massage it into user space, one record at a time.
    370 	 */
    371 	if (error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, (u_long *)0,
    372 	    0))
    373 		goto out;
    374 	inp = buf;
    375 	outp = uap->buf;
    376 	resid = uap->nbytes;
    377 	if ((len = buflen - auio.uio_resid) == 0)
    378 		goto eof;
    379 	for (; len > 0; len -= reclen) {
    380 		reclen = ((struct dirent *)inp)->d_reclen;
    381 		if (reclen & 3)
    382 			panic("sun_getdents");
    383 		off += reclen;		/* each entry points to next */
    384 		if (BSD_DIRENT(inp)->d_fileno == 0) {
    385 			inp += reclen;	/* it is a hole; squish it out */
    386 			continue;
    387 		}
    388 		if (reclen > len || resid < SUN_RECLEN(reclen)) {
    389 			/* entry too big for buffer, so just stop */
    390 			outp++;
    391 			break;
    392 		}
    393 		/*
    394 		 * Massage in place to make a Sun-shaped dirent (otherwise
    395 		 * we have to worry about touching user memory outside of
    396 		 * the copyout() call).
    397 		 */
    398 		BSD_DIRENT(inp)->d_reclen = SUN_RECLEN(reclen);
    399 #if notdef
    400 		BSD_DIRENT(inp)->d_type = 0; 	/* 4.4 specific */
    401 #endif
    402 		soff = off;
    403 		if ((error = copyout((caddr_t)&soff, outp, sizeof soff)) != 0 ||
    404 		    (error = copyout(inp, outp + sizeof soff, reclen)) != 0)
    405 			goto out;
    406 		/* advance past this real entry */
    407 		inp += reclen;
    408 		/* advance output past Sun-shaped entry */
    409 		outp += SUN_RECLEN(reclen);
    410 		resid -= SUN_RECLEN(reclen);
    411 	}
    412 	/* if we squished out the whole block, try again */
    413 	if (outp == uap->buf)
    414 		goto again;
    415 	fp->f_offset = off;		/* update the vnode offset */
    416 eof:
    417 	*retval = uap->nbytes - resid;
    418 out:
    419 	VOP_UNLOCK(vp);
    420 	free(buf, M_TEMP);
    421 	return (error);
    422 }
    423 
    424 #define	SUN__MAP_NEW	0x80000000	/* if not, old mmap & cannot handle */
    425 
    426 struct sun_mmap_args {
    427 	caddr_t	addr;
    428 	size_t	len;
    429 	int	prot;
    430 	int	flags;
    431 	int	fd;
    432 	long	off;		/* not off_t! */
    433 	off_t	qoff;		/* created here and fed to mmap() */
    434 };
    435 sun_mmap(p, uap, retval)
    436 	register struct proc *p;
    437 	register struct sun_mmap_args *uap;
    438 	int *retval;
    439 {
    440 	register struct filedesc *fdp;
    441 	register struct file *fp;
    442 	register struct vnode *vp;
    443 
    444 	/*
    445 	 * Verify the arguments.
    446 	 */
    447 	if (uap->prot & ~(PROT_READ|PROT_WRITE|PROT_EXEC))
    448 		return (EINVAL);			/* XXX still needed? */
    449 
    450 	if ((uap->flags & SUN__MAP_NEW) == 0)
    451 		return (EINVAL);
    452 	uap->flags &= ~SUN__MAP_NEW;
    453 
    454 	if ((uap->flags & MAP_FIXED) == 0 &&
    455 		uap->addr != 0 &&
    456 		uap->addr < (caddr_t)round_page(p->p_vmspace->vm_daddr+MAXDSIZ))
    457 		uap->addr = (caddr_t)round_page(p->p_vmspace->vm_daddr+MAXDSIZ);
    458 
    459 	/*
    460 	 * Special case: if fd refers to /dev/zero, map as MAP_ANON.  (XXX)
    461 	 */
    462 	fdp = p->p_fd;
    463 	if ((unsigned)uap->fd < fdp->fd_nfiles &&			/*XXX*/
    464 	    (fp = fdp->fd_ofiles[uap->fd]) != NULL &&			/*XXX*/
    465 	    fp->f_type == DTYPE_VNODE &&				/*XXX*/
    466 	    (vp = (struct vnode *)fp->f_data)->v_type == VCHR &&	/*XXX*/
    467 	    iszerodev(vp->v_rdev)) {					/*XXX*/
    468 		uap->flags |= MAP_ANON;
    469 		uap->fd = -1;
    470 	}
    471 
    472 	uap->qoff = uap->off;
    473 	return (mmap(p, uap, retval));
    474 }
    475 
    476 #define	MC_SYNC		1
    477 #define	MC_LOCK		2
    478 #define	MC_UNLOCK	3
    479 #define	MC_ADVISE	4
    480 #define	MC_LOCKAS	5
    481 #define	MC_UNLOCKAS	6
    482 
    483 struct sun_mctl_args {
    484 	caddr_t	addr;
    485 	size_t	len;
    486 	int	func;
    487 	void	*arg;
    488 };
    489 sun_mctl(p, uap, retval)
    490 	register struct proc *p;
    491 	register struct sun_mctl_args *uap;
    492 	int *retval;
    493 {
    494 
    495 	switch (uap->func) {
    496 
    497 	case MC_ADVISE:		/* ignore for now */
    498 		return (0);
    499 
    500 	case MC_SYNC:		/* translate to msync */
    501 		return (msync(p, uap, retval));
    502 
    503 	default:
    504 		return (EINVAL);
    505 	}
    506 }
    507 
    508 struct sun_setsockopt_args {
    509 	int	s;
    510 	int	level;
    511 	int	name;
    512 	caddr_t	val;
    513 	int	valsize;
    514 };
    515 sun_setsockopt(p, uap, retval)
    516 	struct proc *p;
    517 	register struct sun_setsockopt_args *uap;
    518 	int *retval;
    519 {
    520 	struct file *fp;
    521 	struct mbuf *m = NULL;
    522 	int error;
    523 
    524 	if (error = getsock(p->p_fd, uap->s, &fp))
    525 		return (error);
    526 #define	SO_DONTLINGER (~SO_LINGER)
    527 	if (uap->name == SO_DONTLINGER) {
    528 		m = m_get(M_WAIT, MT_SOOPTS);
    529 		if (m == NULL)
    530 			return (ENOBUFS);
    531 		mtod(m, struct linger *)->l_onoff = 0;
    532 		m->m_len = sizeof(struct linger);
    533 		return (sosetopt((struct socket *)fp->f_data, uap->level,
    534 		    SO_LINGER, m));
    535 	}
    536 	if (uap->valsize > MLEN)
    537 		return (EINVAL);
    538 	if (uap->val) {
    539 		m = m_get(M_WAIT, MT_SOOPTS);
    540 		if (m == NULL)
    541 			return (ENOBUFS);
    542 		if (error = copyin(uap->val, mtod(m, caddr_t),
    543 		    (u_int)uap->valsize)) {
    544 			(void) m_free(m);
    545 			return (error);
    546 		}
    547 		m->m_len = uap->valsize;
    548 	}
    549 	return (sosetopt((struct socket *)fp->f_data, uap->level,
    550 	    uap->name, m));
    551 }
    552 
    553 struct sun_fchroot_args {
    554 	int	fdes;
    555 };
    556 sun_fchroot(p, uap, retval)
    557 	register struct proc *p;
    558 	register struct sun_fchroot_args *uap;
    559 	int *retval;
    560 {
    561 	register struct filedesc *fdp = p->p_fd;
    562 	register struct vnode *vp;
    563 	struct file *fp;
    564 	int error;
    565 
    566 	if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
    567 		return (error);
    568 	if ((error = getvnode(fdp, uap->fdes, &fp)) != 0)
    569 		return (error);
    570 	vp = (struct vnode *)fp->f_data;
    571 	VOP_LOCK(vp);
    572 	if (vp->v_type != VDIR)
    573 		error = ENOTDIR;
    574 	else
    575 		error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p);
    576 	VOP_UNLOCK(vp);
    577 	if (error)
    578 		return (error);
    579 	VREF(vp);
    580 	if (fdp->fd_rdir != NULL)
    581 		vrele(fdp->fd_rdir);
    582 	fdp->fd_rdir = vp;
    583 	return (0);
    584 }
    585 
    586 /*
    587  * XXX: This needs cleaning up.
    588  */
    589 sun_auditsys(...)
    590 {
    591 	return 0;
    592 }
    593 
    594 struct sun_utsname {
    595 	char    sysname[9];
    596 	char    nodename[9];
    597 	char    nodeext[65-9];
    598 	char    release[9];
    599 	char    version[9];
    600 	char    machine[9];
    601 };
    602 
    603 struct sun_uname_args {
    604 	struct sun_utsname *name;
    605 };
    606 sun_uname(p, uap, retval)
    607 	struct proc *p;
    608 	struct sun_uname_args *uap;
    609 	int *retval;
    610 {
    611 	struct sun_utsname sut;
    612 	extern char ostype[], machine[], osrelease[];
    613 
    614 	bzero(&sut, sizeof(sut));
    615 
    616 	bcopy(ostype, sut.sysname, sizeof(sut.sysname) - 1);
    617 	bcopy(hostname, sut.nodename, sizeof(sut.nodename));
    618 	sut.nodename[sizeof(sut.nodename)-1] = '\0';
    619 	bcopy(osrelease, sut.release, sizeof(sut.release) - 1);
    620 	bcopy("1", sut.version, sizeof(sut.version) - 1);
    621 	bcopy(machine, sut.machine, sizeof(sut.machine) - 1);
    622 
    623 	return copyout((caddr_t)&sut, (caddr_t)uap->name, sizeof(struct sun_utsname));
    624 }
    625 
    626 struct sun_setpgid_args {
    627 	int	pid;	/* target process id */
    628 	int	pgid;	/* target pgrp id */
    629 };
    630 int
    631 sun_setpgid(p, uap, retval)
    632 	struct proc *p;
    633 	struct sun_setpgid_args *uap;
    634 	int *retval;
    635 {
    636 	/*
    637 	 * difference to our setpgid call is to include backwards
    638 	 * compatibility to pre-setsid() binaries. Do setsid()
    639 	 * instead of setpgid() in those cases where the process
    640 	 * tries to create a new session the old way.
    641 	 */
    642 	if (!uap->pgid && (!uap->pid || uap->pid == p->p_pid))
    643 		return setsid(p, uap, retval);
    644 	else
    645 		return setpgid(p, uap, retval);
    646 }
    647 
    648 struct sun_open_args {
    649 	char	*fname;
    650 	int	fmode;
    651 	int	crtmode;
    652 };
    653 sun_open(p, uap, retval)
    654 	struct proc *p;
    655 	struct sun_open_args *uap;
    656 	int *retval;
    657 {
    658 	int l, r;
    659 	int noctty = uap->fmode & 0x8000;
    660 	int ret;
    661 
    662 	/* convert mode into NetBSD mode */
    663 	l = uap->fmode;
    664 	r =	(l & (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800));
    665 	r |=	((l & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0);
    666 	r |=	((l & 0x0080) ? O_SHLOCK : 0);
    667 	r |=	((l & 0x0100) ? O_EXLOCK : 0);
    668 	r |=	((l & 0x2000) ? O_FSYNC : 0);
    669 
    670 	uap->fmode = r;
    671 	ret = open(p, uap, retval);
    672 
    673 	if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
    674 		struct filedesc *fdp = p->p_fd;
    675 		struct file *fp = fdp->fd_ofiles[*retval];
    676 
    677 		/* ignore any error, just give it a try */
    678 		if (fp->f_type == DTYPE_VNODE)
    679 			(fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t) 0, p);
    680 	}
    681 	return ret;
    682 }
    683 
    684 #if defined (NFSSERVER)
    685 struct nfssvc_args {
    686 	int	fd;
    687 	caddr_t mskval;
    688 	int msklen;
    689 	caddr_t mtchval;
    690 	int mtchlen;
    691 };
    692 struct sun_nfssvc_args {
    693 	int	fd;
    694 };
    695 sun_nfssvc(p, uap, retval)
    696 	struct proc *p;
    697 	struct sun_nfssvc_args *uap;
    698 	int *retval;
    699 {
    700 	struct nfssvc_args outuap;
    701 	struct sockaddr sa;
    702 	int error;
    703 	extern char sigcode[], esigcode[];
    704 
    705 	bzero(&outuap, sizeof outuap);
    706 	outuap.fd = uap->fd;
    707 	outuap.mskval = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
    708 	outuap.msklen = sizeof sa;
    709 	outuap.mtchval = outuap.mskval + sizeof sa;
    710 	outuap.mtchlen = sizeof sa;
    711 
    712 	bzero(&sa, sizeof sa);
    713 	if (error = copyout(&sa, outuap.mskval, outuap.msklen))
    714 		return (error);
    715 	if (error = copyout(&sa, outuap.mtchval, outuap.mtchlen))
    716 		return (error);
    717 
    718 	return nfssvc(p, &outuap, retval);
    719 }
    720 #endif /* NFSSERVER */
    721 
    722 struct sun_ustat {
    723 	daddr_t	f_tfree;	/* total free */
    724 	ino_t	f_tinode;	/* total inodes free */
    725 	char	f_fname[6];	/* filsys name */
    726 	char	f_fpack[6];	/* filsys pack name */
    727 };
    728 struct sun_ustat_args {
    729 	int	dev;
    730 	struct	sun_ustat *buf;
    731 };
    732 sun_ustat(p, uap, retval)
    733 	struct proc *p;
    734 	struct sun_ustat_args *uap;
    735 	int *retval;
    736 {
    737 	struct sun_ustat us;
    738 	int error;
    739 
    740 	bzero(&us, sizeof us);
    741 
    742 	/*
    743 	 * XXX: should set f_tfree and f_tinode at least
    744 	 * How do we translate dev -> fstat? (and then to sun_ustat)
    745 	 */
    746 
    747 	if (error = copyout(&us, uap->buf, sizeof us))
    748 		return (error);
    749 	return 0;
    750 }
    751 
    752 struct sun_quotactl_args {
    753 	int	cmd;
    754 	char	*special;
    755 	int	uid;
    756 	caddr_t	addr;
    757 };
    758 sun_quotactl(p, uap, retval)
    759 	struct proc *p;
    760 	struct sun_quotactl_args *uap;
    761 	int *retval;
    762 {
    763 	return EINVAL;
    764 }
    765 
    766 sun_vhangup(p, uap, retval)
    767 	struct proc *p;
    768 	void *uap;
    769 	int *retval;
    770 {
    771 	return 0;
    772 }
    773 
    774 struct sun_statfs {
    775 	long	f_type;		/* type of info, zero for now */
    776 	long	f_bsize;	/* fundamental file system block size */
    777 	long	f_blocks;	/* total blocks in file system */
    778 	long	f_bfree;	/* free blocks */
    779 	long	f_bavail;	/* free blocks available to non-super-user */
    780 	long	f_files;	/* total file nodes in file system */
    781 	long	f_ffree;	/* free file nodes in fs */
    782 	fsid_t	f_fsid;		/* file system id */
    783 	long	f_spare[7];	/* spare for later */
    784 };
    785 static
    786 sunstatfs(sp, buf)
    787 	struct statfs *sp;
    788 	caddr_t buf;
    789 {
    790 	struct sun_statfs ssfs;
    791 
    792 	bzero(&ssfs, sizeof ssfs);
    793 	ssfs.f_type = 0;
    794 	ssfs.f_bsize = sp->f_bsize;
    795 	ssfs.f_blocks = sp->f_blocks;
    796 	ssfs.f_bfree = sp->f_bfree;
    797 	ssfs.f_bavail = sp->f_bavail;
    798 	ssfs.f_files = sp->f_files;
    799 	ssfs.f_ffree = sp->f_ffree;
    800 	ssfs.f_fsid = sp->f_fsid;
    801 	return copyout((caddr_t)&ssfs, buf, sizeof ssfs);
    802 }
    803 
    804 struct sun_statfs_args {
    805 	char	*path;
    806 	struct	sun_statfs *buf;
    807 };
    808 sun_statfs(p, uap, retval)
    809 	struct proc *p;
    810 	struct sun_statfs_args *uap;
    811 	int *retval;
    812 {
    813 	register struct mount *mp;
    814 	register struct statfs *sp;
    815 	int error;
    816 	struct nameidata nd;
    817 
    818 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, uap->path, p);
    819 	if (error = namei(&nd))
    820 		return (error);
    821 	mp = nd.ni_vp->v_mount;
    822 	sp = &mp->mnt_stat;
    823 	vrele(nd.ni_vp);
    824 	if (error = VFS_STATFS(mp, sp, p))
    825 		return (error);
    826 	sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
    827 	return sunstatfs(sp, (caddr_t)uap->buf);
    828 }
    829 
    830 struct sun_fstatfs_args {
    831 	int	fd;
    832 	struct	sun_statfs *buf;
    833 };
    834 sun_fstatfs(p, uap, retval)
    835 	struct proc *p;
    836 	struct sun_fstatfs_args *uap;
    837 	int *retval;
    838 {
    839 	struct file *fp;
    840 	struct mount *mp;
    841 	register struct statfs *sp;
    842 	int error;
    843 
    844 	if (error = getvnode(p->p_fd, uap->fd, &fp))
    845 		return (error);
    846 	mp = ((struct vnode *)fp->f_data)->v_mount;
    847 	sp = &mp->mnt_stat;
    848 	if (error = VFS_STATFS(mp, sp, p))
    849 		return (error);
    850 	sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
    851 	return sunstatfs(sp, (caddr_t)uap->buf);
    852 }
    853 
    854 struct sun_exportfs_args {
    855 	char	*path;
    856 	char	*ex;			/* struct sun_export * */
    857 };
    858 sun_exportfs(p, uap, retval)
    859 	struct proc *p;
    860 	struct sun_exportfs_args *uap;
    861 	int *retval;
    862 {
    863 	/*
    864 	 * XXX: should perhaps translate into a mount(2)
    865 	 * with MOUNT_EXPORT?
    866 	 */
    867 	return 0;
    868 }
    869 
    870 struct sun_mknod_args {
    871 	char	*fname;
    872 	int	fmode;
    873 	int	dev;
    874 };
    875 
    876 sun_mknod(p, uap, retval)
    877 	struct proc *p;
    878 	struct sun_mknod_args *uap;
    879 	int *retval;
    880 {
    881 	if (S_ISFIFO(uap->fmode))
    882 		return mkfifo(p, uap, retval);
    883 
    884 	return mknod(p, uap, retval);
    885 }
    886 
    887 #define SUN_SC_ARG_MAX		1
    888 #define SUN_SC_CHILD_MAX	2
    889 #define SUN_SC_CLK_TCK		3
    890 #define SUN_SC_NGROUPS_MAX	4
    891 #define SUN_SC_OPEN_MAX		5
    892 #define SUN_SC_JOB_CONTROL	6
    893 #define SUN_SC_SAVED_IDS	7
    894 #define SUN_SC_VERSION		8
    895 
    896 struct sun_sysconf_args {
    897 	int	name;
    898 };
    899 
    900 sun_sysconf(p, uap, retval)
    901 	struct proc *p;
    902 	struct sun_sysconf_args *uap;
    903 	int *retval;
    904 {
    905 	extern int maxfiles;
    906 
    907 	switch(uap->name) {
    908 	case SUN_SC_ARG_MAX:
    909 		*retval = ARG_MAX;
    910 		break;
    911 	case SUN_SC_CHILD_MAX:
    912 		*retval = maxproc;
    913 		break;
    914 	case SUN_SC_CLK_TCK:
    915 		*retval = 60;		/* should this be `hz', ie. 100? */
    916 		break;
    917 	case SUN_SC_NGROUPS_MAX:
    918 		*retval = NGROUPS_MAX;
    919 		break;
    920 	case SUN_SC_OPEN_MAX:
    921 		*retval = maxfiles;
    922 		break;
    923 	case SUN_SC_JOB_CONTROL:
    924 		*retval = 1;
    925 		break;
    926 	case SUN_SC_SAVED_IDS:
    927 #ifdef _POSIX_SAVED_IDS
    928 		*retval = 1;
    929 #else
    930 		*retval = 0;
    931 #endif
    932 		break;
    933 	case SUN_SC_VERSION:
    934 		*retval = 198808;
    935 		break;
    936 	default:
    937 		return EINVAL;
    938 	}
    939 	return 0;
    940 }
    941 
    942 #define SUN_RLIMIT_NOFILE	6	/* Other RLIMIT_* are the same */
    943 #define SUN_RLIM_NLIMITS	7
    944 
    945 struct sun_getrlimit_args {
    946 	int	which;
    947 	struct	orlimit *rlp;
    948 };
    949 
    950 sun_getrlimit(p, uap, retval)
    951 	struct proc *p;
    952 	struct sun_getrlimit_args *uap;
    953 	int *retval;
    954 {
    955 	if (uap->which >= SUN_RLIM_NLIMITS)
    956 		return EINVAL;
    957 
    958 	if (uap->which == SUN_RLIMIT_NOFILE)
    959 		uap->which = RLIMIT_NOFILE;
    960 
    961 	return ogetrlimit(p, uap, retval);
    962 }
    963 
    964 struct sun_setrlimit_args {
    965 	int	which;
    966 	struct	orlimit *rlp;
    967 };
    968 
    969 sun_setrlimit(p, uap, retval)
    970 	struct proc *p;
    971 	struct sun_getrlimit_args *uap;
    972 	int *retval;
    973 {
    974 	if (uap->which >= SUN_RLIM_NLIMITS)
    975 		return EINVAL;
    976 
    977 	if (uap->which == SUN_RLIMIT_NOFILE)
    978 		uap->which = RLIMIT_NOFILE;
    979 
    980 	return osetrlimit(p, uap, retval);
    981 }
    982