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sunos_misc.c revision 1.27
      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 1.27 1994/06/10 09:26:18 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.sotype = SOCK_DGRAM;
    255 		na.proto = IPPROTO_UDP;
    256 		na.fh = (nfsv2fh_t *)sna.fh;
    257 		na.flags = sna.flags;
    258 		na.wsize = sna.wsize;
    259 		na.rsize = sna.rsize;
    260 		na.timeo = sna.timeo;
    261 		na.retrans = sna.retrans;
    262 		na.hostname = sna.hostname;
    263 
    264 		if (error = copyout(&sa, na.addr, sizeof sa))
    265 			return (error);
    266 		if (error = copyout(&na, uap->data, sizeof na))
    267 			return (error);
    268 	}
    269 	return (mount(p, uap, retval));
    270 }
    271 
    272 async_daemon(p, uap, retval)
    273 	struct proc *p;
    274 	void *uap;
    275 	int *retval;
    276 {
    277 	struct nfssvc_args {
    278 		int flag;
    279 		caddr_t argp;
    280 	} args;
    281 
    282 	args.flag = NFSSVC_BIOD;
    283 	return nfssvc(p, &args, retval);
    284 }
    285 
    286 struct sun_sigpending_args {
    287 	int	*mask;
    288 };
    289 sun_sigpending(p, uap, retval)
    290 	struct proc *p;
    291 	struct sun_sigpending_args *uap;
    292 	int *retval;
    293 {
    294 	int mask = p->p_siglist & p->p_sigmask;
    295 
    296 	return (copyout((caddr_t)&mask, (caddr_t)uap->mask, sizeof(int)));
    297 }
    298 
    299 /*
    300  * Here is the sun layout.  (Compare the BSD layout in <sys/dirent.h>.)
    301  * We can assume big-endian, so the BSD d_type field is just the high
    302  * byte of the SunOS d_namlen field, after adjusting for the extra "long".
    303  */
    304 struct sun_dirent {
    305 	long	d_off;
    306 	u_long	d_fileno;
    307 	u_short	d_reclen;
    308 	u_short	d_namlen;
    309 	char	d_name[256];
    310 };
    311 
    312 /*
    313  * Read Sun-style directory entries.  We suck them into kernel space so
    314  * that they can be massaged before being copied out to user code.  Like
    315  * SunOS, we squish out `empty' entries.
    316  *
    317  * This is quite ugly, but what do you expect from compatibility code?
    318  */
    319 struct sun_getdents_args {
    320 	int	fd;
    321 	char	*buf;
    322 	int	nbytes;
    323 };
    324 sun_getdents(p, uap, retval)
    325 	struct proc *p;
    326 	register struct sun_getdents_args *uap;
    327 	int *retval;
    328 {
    329 	register struct vnode *vp;
    330 	register caddr_t inp, buf;	/* BSD-format */
    331 	register int len, reclen;	/* BSD-format */
    332 	register caddr_t outp;		/* Sun-format */
    333 	register int resid;		/* Sun-format */
    334 	struct file *fp;
    335 	struct uio auio;
    336 	struct iovec aiov;
    337 	off_t off;			/* true file offset */
    338 	long soff;			/* Sun file offset */
    339 	int buflen, error, eofflag;
    340 #define	BSD_DIRENT(cp) ((struct dirent *)(cp))
    341 #define	SUN_RECLEN(reclen) (reclen + sizeof(long))
    342 
    343 	if ((error = getvnode(p->p_fd, uap->fd, &fp)) != 0)
    344 		return (error);
    345 	if ((fp->f_flag & FREAD) == 0)
    346 		return (EBADF);
    347 	vp = (struct vnode *)fp->f_data;
    348 	if (vp->v_type != VDIR)	/* XXX  vnode readdir op should do this */
    349 		return (EINVAL);
    350 	buflen = min(MAXBSIZE, uap->nbytes);
    351 	buf = malloc(buflen, M_TEMP, M_WAITOK);
    352 	VOP_LOCK(vp);
    353 	off = fp->f_offset;
    354 again:
    355 	aiov.iov_base = buf;
    356 	aiov.iov_len = buflen;
    357 	auio.uio_iov = &aiov;
    358 	auio.uio_iovcnt = 1;
    359 	auio.uio_rw = UIO_READ;
    360 	auio.uio_segflg = UIO_SYSSPACE;
    361 	auio.uio_procp = p;
    362 	auio.uio_resid = buflen;
    363 	auio.uio_offset = off;
    364 	/*
    365 	 * First we read into the malloc'ed buffer, then
    366 	 * we massage it into user space, one record at a time.
    367 	 */
    368 	if (error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, (u_long *)0,
    369 	    0))
    370 		goto out;
    371 	inp = buf;
    372 	outp = uap->buf;
    373 	resid = uap->nbytes;
    374 	if ((len = buflen - auio.uio_resid) == 0)
    375 		goto eof;
    376 	for (; len > 0; len -= reclen) {
    377 		reclen = ((struct dirent *)inp)->d_reclen;
    378 		if (reclen & 3)
    379 			panic("sun_getdents");
    380 		off += reclen;		/* each entry points to next */
    381 		if (BSD_DIRENT(inp)->d_fileno == 0) {
    382 			inp += reclen;	/* it is a hole; squish it out */
    383 			continue;
    384 		}
    385 		if (reclen > len || resid < SUN_RECLEN(reclen)) {
    386 			/* entry too big for buffer, so just stop */
    387 			outp++;
    388 			break;
    389 		}
    390 		/*
    391 		 * Massage in place to make a Sun-shaped dirent (otherwise
    392 		 * we have to worry about touching user memory outside of
    393 		 * the copyout() call).
    394 		 */
    395 		BSD_DIRENT(inp)->d_reclen = SUN_RECLEN(reclen);
    396 #if notdef
    397 		BSD_DIRENT(inp)->d_type = 0; 	/* 4.4 specific */
    398 #endif
    399 		soff = off;
    400 		if ((error = copyout((caddr_t)&soff, outp, sizeof soff)) != 0 ||
    401 		    (error = copyout(inp, outp + sizeof soff, reclen)) != 0)
    402 			goto out;
    403 		/* advance past this real entry */
    404 		inp += reclen;
    405 		/* advance output past Sun-shaped entry */
    406 		outp += SUN_RECLEN(reclen);
    407 		resid -= SUN_RECLEN(reclen);
    408 	}
    409 	/* if we squished out the whole block, try again */
    410 	if (outp == uap->buf)
    411 		goto again;
    412 	fp->f_offset = off;		/* update the vnode offset */
    413 eof:
    414 	*retval = uap->nbytes - resid;
    415 out:
    416 	VOP_UNLOCK(vp);
    417 	free(buf, M_TEMP);
    418 	return (error);
    419 }
    420 
    421 #define	SUN__MAP_NEW	0x80000000	/* if not, old mmap & cannot handle */
    422 
    423 struct sun_mmap_args {
    424 	caddr_t	addr;
    425 	size_t	len;
    426 	int	prot;
    427 	int	flags;
    428 	int	fd;
    429 	long	off;		/* not off_t! */
    430 	off_t	qoff;		/* created here and fed to mmap() */
    431 };
    432 sun_mmap(p, uap, retval)
    433 	register struct proc *p;
    434 	register struct sun_mmap_args *uap;
    435 	int *retval;
    436 {
    437 	register struct filedesc *fdp;
    438 	register struct file *fp;
    439 	register struct vnode *vp;
    440 
    441 	/*
    442 	 * Verify the arguments.
    443 	 */
    444 	if (uap->prot & ~(PROT_READ|PROT_WRITE|PROT_EXEC))
    445 		return (EINVAL);			/* XXX still needed? */
    446 
    447 	if ((uap->flags & SUN__MAP_NEW) == 0)
    448 		return (EINVAL);
    449 	uap->flags &= ~SUN__MAP_NEW;
    450 
    451 	if ((uap->flags & MAP_FIXED) == 0 &&
    452 		uap->addr != 0 &&
    453 		uap->addr < (caddr_t)round_page(p->p_vmspace->vm_daddr+MAXDSIZ))
    454 		uap->addr = (caddr_t)round_page(p->p_vmspace->vm_daddr+MAXDSIZ);
    455 
    456 	/*
    457 	 * Special case: if fd refers to /dev/zero, map as MAP_ANON.  (XXX)
    458 	 */
    459 	fdp = p->p_fd;
    460 	if ((unsigned)uap->fd < fdp->fd_nfiles &&			/*XXX*/
    461 	    (fp = fdp->fd_ofiles[uap->fd]) != NULL &&			/*XXX*/
    462 	    fp->f_type == DTYPE_VNODE &&				/*XXX*/
    463 	    (vp = (struct vnode *)fp->f_data)->v_type == VCHR &&	/*XXX*/
    464 	    iszerodev(vp->v_rdev)) {					/*XXX*/
    465 		uap->flags |= MAP_ANON;
    466 		uap->fd = -1;
    467 	}
    468 
    469 	uap->qoff = uap->off;
    470 	return (mmap(p, uap, retval));
    471 }
    472 
    473 #define	MC_SYNC		1
    474 #define	MC_LOCK		2
    475 #define	MC_UNLOCK	3
    476 #define	MC_ADVISE	4
    477 #define	MC_LOCKAS	5
    478 #define	MC_UNLOCKAS	6
    479 
    480 struct sun_mctl_args {
    481 	caddr_t	addr;
    482 	size_t	len;
    483 	int	func;
    484 	void	*arg;
    485 };
    486 sun_mctl(p, uap, retval)
    487 	register struct proc *p;
    488 	register struct sun_mctl_args *uap;
    489 	int *retval;
    490 {
    491 
    492 	switch (uap->func) {
    493 
    494 	case MC_ADVISE:		/* ignore for now */
    495 		return (0);
    496 
    497 	case MC_SYNC:		/* translate to msync */
    498 		return (msync(p, uap, retval));
    499 
    500 	default:
    501 		return (EINVAL);
    502 	}
    503 }
    504 
    505 struct sun_setsockopt_args {
    506 	int	s;
    507 	int	level;
    508 	int	name;
    509 	caddr_t	val;
    510 	int	valsize;
    511 };
    512 sun_setsockopt(p, uap, retval)
    513 	struct proc *p;
    514 	register struct sun_setsockopt_args *uap;
    515 	int *retval;
    516 {
    517 	struct file *fp;
    518 	struct mbuf *m = NULL;
    519 	int error;
    520 
    521 	if (error = getsock(p->p_fd, uap->s, &fp))
    522 		return (error);
    523 #define	SO_DONTLINGER (~SO_LINGER)
    524 	if (uap->name == SO_DONTLINGER) {
    525 		m = m_get(M_WAIT, MT_SOOPTS);
    526 		if (m == NULL)
    527 			return (ENOBUFS);
    528 		mtod(m, struct linger *)->l_onoff = 0;
    529 		m->m_len = sizeof(struct linger);
    530 		return (sosetopt((struct socket *)fp->f_data, uap->level,
    531 		    SO_LINGER, m));
    532 	}
    533 	if (uap->valsize > MLEN)
    534 		return (EINVAL);
    535 	if (uap->val) {
    536 		m = m_get(M_WAIT, MT_SOOPTS);
    537 		if (m == NULL)
    538 			return (ENOBUFS);
    539 		if (error = copyin(uap->val, mtod(m, caddr_t),
    540 		    (u_int)uap->valsize)) {
    541 			(void) m_free(m);
    542 			return (error);
    543 		}
    544 		m->m_len = uap->valsize;
    545 	}
    546 	return (sosetopt((struct socket *)fp->f_data, uap->level,
    547 	    uap->name, m));
    548 }
    549 
    550 struct sun_fchroot_args {
    551 	int	fdes;
    552 };
    553 sun_fchroot(p, uap, retval)
    554 	register struct proc *p;
    555 	register struct sun_fchroot_args *uap;
    556 	int *retval;
    557 {
    558 	register struct filedesc *fdp = p->p_fd;
    559 	register struct vnode *vp;
    560 	struct file *fp;
    561 	int error;
    562 
    563 	if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
    564 		return (error);
    565 	if ((error = getvnode(fdp, uap->fdes, &fp)) != 0)
    566 		return (error);
    567 	vp = (struct vnode *)fp->f_data;
    568 	VOP_LOCK(vp);
    569 	if (vp->v_type != VDIR)
    570 		error = ENOTDIR;
    571 	else
    572 		error = VOP_ACCESS(vp, VEXEC, p->p_ucred, p);
    573 	VOP_UNLOCK(vp);
    574 	if (error)
    575 		return (error);
    576 	VREF(vp);
    577 	if (fdp->fd_rdir != NULL)
    578 		vrele(fdp->fd_rdir);
    579 	fdp->fd_rdir = vp;
    580 	return (0);
    581 }
    582 
    583 /*
    584  * XXX: This needs cleaning up.
    585  */
    586 sun_auditsys(...)
    587 {
    588 	return 0;
    589 }
    590 
    591 struct sun_utsname {
    592 	char    sysname[9];
    593 	char    nodename[9];
    594 	char    nodeext[65-9];
    595 	char    release[9];
    596 	char    version[9];
    597 	char    machine[9];
    598 };
    599 
    600 struct sun_uname_args {
    601 	struct sun_utsname *name;
    602 };
    603 sun_uname(p, uap, retval)
    604 	struct proc *p;
    605 	struct sun_uname_args *uap;
    606 	int *retval;
    607 {
    608 	struct sun_utsname sut;
    609 	extern char ostype[], machine[], osrelease[];
    610 
    611 	bzero(&sut, sizeof(sut));
    612 
    613 	bcopy(ostype, sut.sysname, sizeof(sut.sysname) - 1);
    614 	bcopy(hostname, sut.nodename, sizeof(sut.nodename));
    615 	sut.nodename[sizeof(sut.nodename)-1] = '\0';
    616 	bcopy(osrelease, sut.release, sizeof(sut.release) - 1);
    617 	bcopy("1", sut.version, sizeof(sut.version) - 1);
    618 	bcopy(machine, sut.machine, sizeof(sut.machine) - 1);
    619 
    620 	return copyout((caddr_t)&sut, (caddr_t)uap->name, sizeof(struct sun_utsname));
    621 }
    622 
    623 struct sun_setpgid_args {
    624 	int	pid;	/* target process id */
    625 	int	pgid;	/* target pgrp id */
    626 };
    627 int
    628 sun_setpgid(p, uap, retval)
    629 	struct proc *p;
    630 	struct sun_setpgid_args *uap;
    631 	int *retval;
    632 {
    633 	/*
    634 	 * difference to our setpgid call is to include backwards
    635 	 * compatibility to pre-setsid() binaries. Do setsid()
    636 	 * instead of setpgid() in those cases where the process
    637 	 * tries to create a new session the old way.
    638 	 */
    639 	if (!uap->pgid && (!uap->pid || uap->pid == p->p_pid))
    640 		return setsid(p, uap, retval);
    641 	else
    642 		return setpgid(p, uap, retval);
    643 }
    644 
    645 struct sun_open_args {
    646 	char	*fname;
    647 	int	fmode;
    648 	int	crtmode;
    649 };
    650 sun_open(p, uap, retval)
    651 	struct proc *p;
    652 	struct sun_open_args *uap;
    653 	int *retval;
    654 {
    655 	int l, r;
    656 	int noctty = uap->fmode & 0x8000;
    657 	int ret;
    658 
    659 	/* convert mode into NetBSD mode */
    660 	l = uap->fmode;
    661 	r =	(l & (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800));
    662 	r |=	((l & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0);
    663 	r |=	((l & 0x0080) ? O_SHLOCK : 0);
    664 	r |=	((l & 0x0100) ? O_EXLOCK : 0);
    665 	r |=	((l & 0x2000) ? O_FSYNC : 0);
    666 
    667 	uap->fmode = r;
    668 	ret = open(p, uap, retval);
    669 
    670 	if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
    671 		struct filedesc *fdp = p->p_fd;
    672 		struct file *fp = fdp->fd_ofiles[*retval];
    673 
    674 		/* ignore any error, just give it a try */
    675 		if (fp->f_type == DTYPE_VNODE)
    676 			(fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t) 0, p);
    677 	}
    678 	return ret;
    679 }
    680 
    681 #if defined (NFSSERVER)
    682 struct nfssvc_args {
    683 	int	fd;
    684 	caddr_t mskval;
    685 	int msklen;
    686 	caddr_t mtchval;
    687 	int mtchlen;
    688 };
    689 struct sun_nfssvc_args {
    690 	int	fd;
    691 };
    692 sun_nfssvc(p, uap, retval)
    693 	struct proc *p;
    694 	struct sun_nfssvc_args *uap;
    695 	int *retval;
    696 {
    697 	struct nfssvc_args outuap;
    698 	struct sockaddr sa;
    699 	int error;
    700 	extern char sigcode[], esigcode[];
    701 
    702 	bzero(&outuap, sizeof outuap);
    703 	outuap.fd = uap->fd;
    704 	outuap.mskval = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
    705 	outuap.msklen = sizeof sa;
    706 	outuap.mtchval = outuap.mskval + sizeof sa;
    707 	outuap.mtchlen = sizeof sa;
    708 
    709 	bzero(&sa, sizeof sa);
    710 	if (error = copyout(&sa, outuap.mskval, outuap.msklen))
    711 		return (error);
    712 	if (error = copyout(&sa, outuap.mtchval, outuap.mtchlen))
    713 		return (error);
    714 
    715 	return nfssvc(p, &outuap, retval);
    716 }
    717 #endif /* NFSSERVER */
    718 
    719 struct sun_ustat {
    720 	daddr_t	f_tfree;	/* total free */
    721 	ino_t	f_tinode;	/* total inodes free */
    722 	char	f_fname[6];	/* filsys name */
    723 	char	f_fpack[6];	/* filsys pack name */
    724 };
    725 struct sun_ustat_args {
    726 	int	dev;
    727 	struct	sun_ustat *buf;
    728 };
    729 sun_ustat(p, uap, retval)
    730 	struct proc *p;
    731 	struct sun_ustat_args *uap;
    732 	int *retval;
    733 {
    734 	struct sun_ustat us;
    735 	int error;
    736 
    737 	bzero(&us, sizeof us);
    738 
    739 	/*
    740 	 * XXX: should set f_tfree and f_tinode at least
    741 	 * How do we translate dev -> fstat? (and then to sun_ustat)
    742 	 */
    743 
    744 	if (error = copyout(&us, uap->buf, sizeof us))
    745 		return (error);
    746 	return 0;
    747 }
    748 
    749 struct sun_quotactl_args {
    750 	int	cmd;
    751 	char	*special;
    752 	int	uid;
    753 	caddr_t	addr;
    754 };
    755 sun_quotactl(p, uap, retval)
    756 	struct proc *p;
    757 	struct sun_quotactl_args *uap;
    758 	int *retval;
    759 {
    760 	return EINVAL;
    761 }
    762 
    763 sun_vhangup(p, uap, retval)
    764 	struct proc *p;
    765 	void *uap;
    766 	int *retval;
    767 {
    768 	return 0;
    769 }
    770 
    771 struct sun_statfs {
    772 	long	f_type;		/* type of info, zero for now */
    773 	long	f_bsize;	/* fundamental file system block size */
    774 	long	f_blocks;	/* total blocks in file system */
    775 	long	f_bfree;	/* free blocks */
    776 	long	f_bavail;	/* free blocks available to non-super-user */
    777 	long	f_files;	/* total file nodes in file system */
    778 	long	f_ffree;	/* free file nodes in fs */
    779 	fsid_t	f_fsid;		/* file system id */
    780 	long	f_spare[7];	/* spare for later */
    781 };
    782 static
    783 sunstatfs(sp, buf)
    784 	struct statfs *sp;
    785 	caddr_t buf;
    786 {
    787 	struct sun_statfs ssfs;
    788 
    789 	bzero(&ssfs, sizeof ssfs);
    790 	ssfs.f_type = 0;
    791 	ssfs.f_bsize = sp->f_bsize;
    792 	ssfs.f_blocks = sp->f_blocks;
    793 	ssfs.f_bfree = sp->f_bfree;
    794 	ssfs.f_bavail = sp->f_bavail;
    795 	ssfs.f_files = sp->f_files;
    796 	ssfs.f_ffree = sp->f_ffree;
    797 	ssfs.f_fsid = sp->f_fsid;
    798 	return copyout((caddr_t)&ssfs, buf, sizeof ssfs);
    799 }
    800 
    801 struct sun_statfs_args {
    802 	char	*path;
    803 	struct	sun_statfs *buf;
    804 };
    805 sun_statfs(p, uap, retval)
    806 	struct proc *p;
    807 	struct sun_statfs_args *uap;
    808 	int *retval;
    809 {
    810 	register struct mount *mp;
    811 	register struct statfs *sp;
    812 	int error;
    813 	struct nameidata nd;
    814 
    815 	NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, uap->path, p);
    816 	if (error = namei(&nd))
    817 		return (error);
    818 	mp = nd.ni_vp->v_mount;
    819 	sp = &mp->mnt_stat;
    820 	vrele(nd.ni_vp);
    821 	if (error = VFS_STATFS(mp, sp, p))
    822 		return (error);
    823 	sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
    824 	return sunstatfs(sp, (caddr_t)uap->buf);
    825 }
    826 
    827 struct sun_fstatfs_args {
    828 	int	fd;
    829 	struct	sun_statfs *buf;
    830 };
    831 sun_fstatfs(p, uap, retval)
    832 	struct proc *p;
    833 	struct sun_fstatfs_args *uap;
    834 	int *retval;
    835 {
    836 	struct file *fp;
    837 	struct mount *mp;
    838 	register struct statfs *sp;
    839 	int error;
    840 
    841 	if (error = getvnode(p->p_fd, uap->fd, &fp))
    842 		return (error);
    843 	mp = ((struct vnode *)fp->f_data)->v_mount;
    844 	sp = &mp->mnt_stat;
    845 	if (error = VFS_STATFS(mp, sp, p))
    846 		return (error);
    847 	sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
    848 	return sunstatfs(sp, (caddr_t)uap->buf);
    849 }
    850 
    851 struct sun_exportfs_args {
    852 	char	*path;
    853 	char	*ex;			/* struct sun_export * */
    854 };
    855 sun_exportfs(p, uap, retval)
    856 	struct proc *p;
    857 	struct sun_exportfs_args *uap;
    858 	int *retval;
    859 {
    860 	/*
    861 	 * XXX: should perhaps translate into a mount(2)
    862 	 * with MOUNT_EXPORT?
    863 	 */
    864 	return 0;
    865 }
    866 
    867 struct sun_mknod_args {
    868 	char	*fname;
    869 	int	fmode;
    870 	int	dev;
    871 };
    872 
    873 sun_mknod(p, uap, retval)
    874 	struct proc *p;
    875 	struct sun_mknod_args *uap;
    876 	int *retval;
    877 {
    878 	if (S_ISFIFO(uap->fmode))
    879 		return mkfifo(p, uap, retval);
    880 
    881 	return mknod(p, uap, retval);
    882 }
    883 
    884 #define SUN_SC_ARG_MAX		1
    885 #define SUN_SC_CHILD_MAX	2
    886 #define SUN_SC_CLK_TCK		3
    887 #define SUN_SC_NGROUPS_MAX	4
    888 #define SUN_SC_OPEN_MAX		5
    889 #define SUN_SC_JOB_CONTROL	6
    890 #define SUN_SC_SAVED_IDS	7
    891 #define SUN_SC_VERSION		8
    892 
    893 struct sun_sysconf_args {
    894 	int	name;
    895 };
    896 
    897 sun_sysconf(p, uap, retval)
    898 	struct proc *p;
    899 	struct sun_sysconf_args *uap;
    900 	int *retval;
    901 {
    902 	extern int maxfiles;
    903 
    904 	switch(uap->name) {
    905 	case SUN_SC_ARG_MAX:
    906 		*retval = ARG_MAX;
    907 		break;
    908 	case SUN_SC_CHILD_MAX:
    909 		*retval = maxproc;
    910 		break;
    911 	case SUN_SC_CLK_TCK:
    912 		*retval = 60;		/* should this be `hz', ie. 100? */
    913 		break;
    914 	case SUN_SC_NGROUPS_MAX:
    915 		*retval = NGROUPS_MAX;
    916 		break;
    917 	case SUN_SC_OPEN_MAX:
    918 		*retval = maxfiles;
    919 		break;
    920 	case SUN_SC_JOB_CONTROL:
    921 		*retval = 1;
    922 		break;
    923 	case SUN_SC_SAVED_IDS:
    924 #ifdef _POSIX_SAVED_IDS
    925 		*retval = 1;
    926 #else
    927 		*retval = 0;
    928 #endif
    929 		break;
    930 	case SUN_SC_VERSION:
    931 		*retval = 198808;
    932 		break;
    933 	default:
    934 		return EINVAL;
    935 	}
    936 	return 0;
    937 }
    938 
    939 #define SUN_RLIMIT_NOFILE	6	/* Other RLIMIT_* are the same */
    940 #define SUN_RLIM_NLIMITS	7
    941 
    942 struct sun_getrlimit_args {
    943 	int	which;
    944 	struct	orlimit *rlp;
    945 };
    946 
    947 sun_getrlimit(p, uap, retval)
    948 	struct proc *p;
    949 	struct sun_getrlimit_args *uap;
    950 	int *retval;
    951 {
    952 	if (uap->which >= SUN_RLIM_NLIMITS)
    953 		return EINVAL;
    954 
    955 	if (uap->which == SUN_RLIMIT_NOFILE)
    956 		uap->which = RLIMIT_NOFILE;
    957 
    958 	return ogetrlimit(p, uap, retval);
    959 }
    960 
    961 struct sun_setrlimit_args {
    962 	int	which;
    963 	struct	orlimit *rlp;
    964 };
    965 
    966 sun_setrlimit(p, uap, retval)
    967 	struct proc *p;
    968 	struct sun_getrlimit_args *uap;
    969 	int *retval;
    970 {
    971 	if (uap->which >= SUN_RLIM_NLIMITS)
    972 		return EINVAL;
    973 
    974 	if (uap->which == SUN_RLIMIT_NOFILE)
    975 		uap->which = RLIMIT_NOFILE;
    976 
    977 	return osetrlimit(p, uap, retval);
    978 }
    979