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freebsd-skq/sys/alpha/osf1/osf1_misc.c
Andrew Gallatin 2f970b91c7 changes to osf1_wait4() 
- only allocate rusage struct when caller wants rusage info
- fix a stupid paren mismatch bug that was causing EPERM to get returned
  to callers rather then ECHILD
2000-01-29 06:31:27 +00:00

1755 lines
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/* $NetBSD: osf1_misc.c,v 1.14 1998/05/20 16:34:29 chs Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* Additional Copyright (c) 1999 by Andrew Gallatin
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/filedesc.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/reboot.h>
#include <sys/exec.h>
#include <sys/vnode.h>
#include <sys/socketvar.h>
#include <sys/sysproto.h>
#include <sys/sysent.h>
#include <sys/resource.h>
#include <sys/signalvar.h>
#include <sys/fcntl.h>
#include <sys/socket.h>
#include <sys/pipe.h>
#include <alpha/osf1/osf1_signal.h>
#include <alpha/osf1/osf1_proto.h>
#include <alpha/osf1/osf1_syscall.h>
#include <alpha/osf1/osf1_util.h>
#include <alpha/osf1/osf1.h>
#include <sys/proc.h>
#include <sys/module.h>
#include <vm/vm.h>
#include <alpha/osf1/exec_ecoff.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/resourcevar.h>
#include <sys/exec.h>
#include <sys/mman.h>
#include <sys/imgact.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/vnode.h>
#include <sys/unistd.h>
#include <vm/vm.h>
#include <vm/vm_kern.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <vm/vm_map.h>
#include <vm/vm_extern.h>
#include <alpha/osf1/exec_ecoff.h>
#include <sys/user.h>
#include <machine/cpu.h>
#include <machine/fpu.h>
#include <sys/sysctl.h>
#include <sys/utsname.h>
#include <sys/dkstat.h>
#include <machine/rpb.h>
static void cvtstat2osf1 __P((struct stat *, struct osf1_stat *));
static int osf2bsd_pathconf __P((int *));
static const char osf1_emul_path[] = "/compat/osf1";
/*
* [ taken from the linux emulator ]
* Search an alternate path before passing pathname arguments on
* to system calls. Useful for keeping a seperate 'emulation tree'.
*
* If cflag is set, we check if an attempt can be made to create
* the named file, i.e. we check if the directory it should
* be in exists.
*/
int
osf1_emul_find(p, sgp, prefix, path, pbuf, cflag)
struct proc *p;
caddr_t *sgp; /* Pointer to stackgap memory */
const char *prefix;
char *path;
char **pbuf;
int cflag;
{
int error;
size_t len, sz;
char *buf, *cp, *ptr;
struct nameidata nd;
struct nameidata ndroot;
struct vattr vat;
struct vattr vatroot;
buf = (char *) malloc(MAXPATHLEN, M_TEMP, M_WAITOK);
*pbuf = path;
for (ptr = buf; (*ptr = *prefix) != '\0'; ptr++, prefix++)
continue;
sz = MAXPATHLEN - (ptr - buf);
/*
* If sgp is not given then the path is already in kernel space
*/
if (sgp == NULL)
error = copystr(path, ptr, sz, &len);
else
error = copyinstr(path, ptr, sz, &len);
if (error) {
free(buf, M_TEMP);
return error;
}
if (*ptr != '/') {
free(buf, M_TEMP);
return EINVAL;
}
/*
* We know that there is a / somewhere in this pathname.
* Search backwards for it, to find the file's parent dir
* to see if it exists in the alternate tree. If it does,
* and we want to create a file (cflag is set). We don't
* need to worry about the root comparison in this case.
*/
if (cflag) {
for (cp = &ptr[len] - 1; *cp != '/'; cp--)
;
*cp = '\0';
NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, buf, p);
if ((error = namei(&nd)) != 0) {
free(buf, M_TEMP);
return error;
}
*cp = '/';
} else {
NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, buf, p);
if ((error = namei(&nd)) != 0) {
free(buf, M_TEMP);
return error;
}
/*
* We now compare the vnode of the osf1_root to the one
* vnode asked. If they resolve to be the same, then we
* ignore the match so that the real root gets used.
* This avoids the problem of traversing "../.." to find the
* root directory and never finding it, because "/" resolves
* to the emulation root directory. This is expensive :-(
*/
NDINIT(&ndroot, LOOKUP, FOLLOW, UIO_SYSSPACE, osf1_emul_path,
p);
if ((error = namei(&ndroot)) != 0) {
/* Cannot happen! */
free(buf, M_TEMP);
vrele(nd.ni_vp);
return error;
}
if ((error = VOP_GETATTR(nd.ni_vp, &vat, p->p_ucred, p)) != 0) {
goto bad;
}
if ((error = VOP_GETATTR(ndroot.ni_vp, &vatroot, p->p_ucred, p))
!= 0) {
goto bad;
}
if (vat.va_fsid == vatroot.va_fsid &&
vat.va_fileid == vatroot.va_fileid) {
error = ENOENT;
goto bad;
}
}
if (sgp == NULL)
*pbuf = buf;
else {
sz = &ptr[len] - buf;
*pbuf = stackgap_alloc(sgp, sz + 1);
error = copyout(buf, *pbuf, sz);
free(buf, M_TEMP);
}
vrele(nd.ni_vp);
if (!cflag)
vrele(ndroot.ni_vp);
return error;
bad:
vrele(ndroot.ni_vp);
vrele(nd.ni_vp);
free(buf, M_TEMP);
return error;
}
int
osf1_open(p, uap)
struct proc *p;
struct osf1_open_args *uap;
{
struct open_args /* {
syscallarg(char *) path;
syscallarg(int) flags;
syscallarg(int) mode;
} */ a;
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(p, &sg, uap->path);
SCARG(&a, path) = SCARG(uap, path);
SCARG(&a, flags) = SCARG(uap, flags); /* XXX translate */
SCARG(&a, mode) = SCARG(uap, mode);
return open(p, &a);
}
int
osf1_getsysinfo(p, uap)
struct proc *p;
struct osf1_getsysinfo_args *uap;
{
int error, retval;
error = retval = 0;
switch(uap->op) {
case OSF_GET_MAX_UPROCS:
error = copyout(&maxprocperuid, uap->buffer,
sizeof(maxprocperuid));
retval = 1;
break;
case OSF_GET_IEEE_FP_CONTROL:
error = copyout(&p->p_addr->u_pcb.pcb_fp_control,uap->buffer,
sizeof(p->p_addr->u_pcb.pcb_fp_control));
retval = 1;
break;
case OSF_GET_PROC_TYPE: {
int unit;
long percpu;
long proctype;
if(uap->nbytes < sizeof(proctype))
error = EINVAL;
else {
unit = alpha_pal_whami();
proctype = LOCATE_PCS(hwrpb, unit)->pcs_proc_type;
error = copyout (&proctype, uap->buffer,
sizeof(percpu));
retval = 1;
}
}
break;
case OSF_GET_HWRPB: { /* note -- osf/1 doesn't have rpb_tbhint[8] */
unsigned long rpb_size;
rpb_size = (unsigned long)&hwrpb->rpb_tbhint -
(unsigned long)hwrpb;
if(uap->nbytes < rpb_size){
uprintf("nbytes = %ld, sizeof(struct rpb) = %ld\n",
uap->nbytes, rpb_size);
error = EINVAL;
}
else {
error = copyout(hwrpb, uap->buffer, rpb_size);
retval = 1;
}
}
break;
default:
printf("osf1_getsysinfo called with unknown op=%ld\n", uap->op);
return EINVAL;
}
p->p_retval[0] = retval;
return(error);
}
int
osf1_setsysinfo(p, uap)
struct proc *p;
struct osf1_setsysinfo_args *uap;
{
int error;
error = 0;
switch(uap->op) {
case OSF_SET_IEEE_FP_CONTROL:
{
u_int64_t temp, *fp_control;
if ((error = copyin(uap->buffer, &temp, sizeof(temp))))
break;
fp_control = &p->p_addr->u_pcb.pcb_fp_control;
*fp_control = temp & IEEE_TRAP_ENABLE_MASK;
break;
}
default:
uprintf("osf1_setsysinfo called with op=%ld\n", uap->op);
/*error = EINVAL;*/
}
return (error);
}
int
osf1_getrlimit(p, uap)
struct proc *p;
struct osf1_getrlimit_args *uap;
{
struct __getrlimit_args /* {
syscallarg(u_int) which;
syscallarg(struct orlimit *) rlp;
} */ a;
if (SCARG(uap, which) >= OSF1_RLIMIT_NLIMITS)
return (EINVAL);
if (SCARG(uap, which) <= OSF1_RLIMIT_LASTCOMMON)
SCARG(&a, which) = SCARG(uap, which);
else if (SCARG(uap, which) == OSF1_RLIMIT_NOFILE)
SCARG(&a, which) = RLIMIT_NOFILE;
else
return (0);
SCARG(&a, rlp) = (struct orlimit *)SCARG(uap, rlp);
return getrlimit(p, &a);
}
int
osf1_setrlimit(p, uap)
struct proc *p;
struct osf1_setrlimit_args *uap;
{
struct __setrlimit_args /* {
syscallarg(u_int) which;
syscallarg(struct orlimit *) rlp;
} */ a;
if (SCARG(uap, which) >= OSF1_RLIMIT_NLIMITS)
return (EINVAL);
if (SCARG(uap, which) <= OSF1_RLIMIT_LASTCOMMON)
SCARG(&a, which) = SCARG(uap, which);
else if (SCARG(uap, which) == OSF1_RLIMIT_NOFILE)
SCARG(&a, which) = RLIMIT_NOFILE;
else
return (0);
SCARG(&a, rlp) = (struct orlimit *)SCARG(uap, rlp);
return setrlimit(p, &a);
}
/*
* As linux says, this is a total guess.
*/
int
osf1_set_program_attributes(p, uap)
struct proc *p;
struct osf1_set_program_attributes_args *uap;
{
struct vmspace *vm = p->p_vmspace;
vm->vm_taddr = (caddr_t)uap->text_start;
vm->vm_tsize = btoc(round_page(uap->text_len));
vm->vm_daddr = (caddr_t)uap->bss_start;
vm->vm_dsize = btoc(round_page(uap->bss_len));
return(KERN_SUCCESS);
}
int
osf1_mmap(p, uap)
struct proc *p;
struct osf1_mmap_args *uap;
{
struct mmap_args /* {
syscallarg(caddr_t) addr;
syscallarg(size_t) len;
syscallarg(int) prot;
syscallarg(int) flags;
syscallarg(int) fd;
syscallarg(long) pad;
syscallarg(off_t) pos;
} */ a;
int retval;
vm_map_t map;
vm_offset_t addr, len, newaddr;
SCARG(&a, addr) = SCARG(uap, addr);
SCARG(&a, len) = SCARG(uap, len);
SCARG(&a, prot) = SCARG(uap, prot);
SCARG(&a, fd) = SCARG(uap, fd);
SCARG(&a, pad) = 0;
SCARG(&a, pos) = SCARG(uap, pos);
SCARG(&a, flags) = 0;
/*
* OSF/1's mmap, unlike FreeBSD's, does its best to map memory at the
* user's requested address, even if MAP_FIXED is not set. Here we
* try to replicate this behaviour as much as we can because some
* applications (like /sbin/loader) depend on having things put as
* close to where they've requested as possible.
*/
if (SCARG(uap, addr) != NULL)
addr = round_page((vm_offset_t)SCARG(&a,addr));
else
/*
* Try to use the apparent OSF/1 default placement of 0x10000 for
* NULL addrs, this helps to prevent non-64 bit clean binaries from
* SEGV'ing.
*/
addr = round_page((vm_offset_t)0x10000UL);
len = (vm_offset_t)SCARG(&a, len);
map = &p->p_vmspace->vm_map;
if (!vm_map_findspace(map, addr, len, &newaddr)) {
SCARG(&a,addr) = (caddr_t) newaddr;
SCARG(&a, flags) |= (MAP_FIXED);
}
#ifdef DEBUG
else
uprintf("osf1_mmap:vm_map_findspace failed for: %p 0x%lx\n",
(caddr_t)addr, len);
#endif
if (SCARG(uap, flags) & OSF1_MAP_SHARED)
SCARG(&a, flags) |= MAP_SHARED;
if (SCARG(uap, flags) & OSF1_MAP_PRIVATE)
SCARG(&a, flags) |= MAP_PRIVATE;
switch (SCARG(uap, flags) & OSF1_MAP_TYPE) {
case OSF1_MAP_ANONYMOUS:
SCARG(&a, flags) |= MAP_ANON;
break;
case OSF1_MAP_FILE:
SCARG(&a, flags) |= MAP_FILE;
break;
default:
return (EINVAL);
}
if (SCARG(uap, flags) & OSF1_MAP_FIXED)
SCARG(&a, flags) |= MAP_FIXED;
if (SCARG(uap, flags) & OSF1_MAP_HASSEMAPHORE)
SCARG(&a, flags) |= MAP_HASSEMAPHORE;
if (SCARG(uap, flags) & OSF1_MAP_INHERIT)
SCARG(&a, flags) |= MAP_INHERIT;
if (SCARG(uap, flags) & OSF1_MAP_UNALIGNED)
return (EINVAL);
/*
* Emulate an osf/1 bug: Apparently, mmap'ed segments are always
* readable even if the user doesn't or in PROT_READ. This causes
* some buggy programs to segv.
*/
SCARG(&a, prot) |= PROT_READ;
retval = mmap(p, &a);
#ifdef DEBUG
uprintf(
"\nosf1_mmap: addr=%p (%p), len = 0x%lx, prot=0x%x, fd=%d, pad=0, pos=0x%lx",
SCARG(uap, addr), SCARG(&a, addr),SCARG(uap, len), SCARG(uap, prot),
SCARG(uap, fd), SCARG(uap, pos));
printf(" flags = 0x%x\n",SCARG(uap, flags));
#endif
return (retval);
}
int
osf1_msync(p, uap)
struct proc *p;
struct osf1_msync_args *uap;
{
struct msync_args a;
a.addr = SCARG(uap, addr);
a.len = SCARG(uap, len);
a.flags = 0;
if(SCARG(uap, flags) & OSF1_MS_ASYNC)
SCARG(&a, flags) |= MS_ASYNC;
if(SCARG(uap, flags) & OSF1_MS_SYNC)
SCARG(&a, flags) |= MS_SYNC;
if(SCARG(uap, flags) & OSF1_MS_INVALIDATE)
SCARG(&a, flags) |= MS_INVALIDATE;
return(msync(p, &a));
}
struct osf1_stat {
int32_t st_dev;
u_int32_t st_ino;
u_int32_t st_mode;
u_int16_t st_nlink;
u_int32_t st_uid;
u_int32_t st_gid;
int32_t st_rdev;
u_int64_t st_size;
int32_t st_atime_sec;
int32_t st_spare1;
int32_t st_mtime_sec;
int32_t st_spare2;
int32_t st_ctime_sec;
int32_t st_spare3;
u_int32_t st_blksize;
int32_t st_blocks;
u_int32_t st_flags;
u_int32_t st_gen;
};
/*
* Get file status; this version follows links.
*/
/* ARGSUSED */
int
osf1_stat(p, uap)
struct proc *p;
struct osf1_stat_args *uap;
{
int error;
struct stat sb;
struct osf1_stat osb;
struct nameidata nd;
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(p, &sg, uap->path);
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE,
SCARG(uap, path), p);
if ((error = namei(&nd)))
return (error);
error = vn_stat(nd.ni_vp, &sb, p);
vput(nd.ni_vp);
if (error)
return (error);
cvtstat2osf1(&sb, &osb);
error = copyout((caddr_t)&osb, (caddr_t)SCARG(uap, ub), sizeof (osb));
return (error);
}
/*
* Get file status; this version does not follow links.
*/
/* ARGSUSED */
int
osf1_lstat(p, uap)
struct proc *p;
register struct osf1_lstat_args *uap;
{
struct stat sb;
struct osf1_stat osb;
int error;
struct nameidata nd;
caddr_t sg = stackgap_init();
CHECKALTEXIST(p, &sg, uap->path);
NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF, UIO_USERSPACE,
SCARG(uap, path), p);
if ((error = namei(&nd)))
return (error);
error = vn_stat(nd.ni_vp, &sb, p);
vput(nd.ni_vp);
if (error)
return (error);
cvtstat2osf1(&sb, &osb);
error = copyout((caddr_t)&osb, (caddr_t)SCARG(uap, ub), sizeof (osb));
return (error);
}
/*
* Return status information about a file descriptor.
*/
int
osf1_fstat(p, uap)
struct proc *p;
register struct osf1_fstat_args *uap;
{
register struct filedesc *fdp = p->p_fd;
register struct file *fp;
struct stat ub;
struct osf1_stat oub;
int error;
if ((unsigned)SCARG(uap, fd) >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
return (EBADF);
error = fo_stat(fp, &ub, p);
cvtstat2osf1(&ub, &oub);
if (error == 0)
error = copyout((caddr_t)&oub, (caddr_t)SCARG(uap, sb),
sizeof (oub));
return (error);
}
#if 1
#define bsd2osf_dev(dev) (umajor(dev) << 20 | uminor(dev))
#define osf2bsd_dev(dev) umakedev((umajor(dev) >> 20) & 0xfff, uminor(dev) & 0xfffff)
#else
#define minor(x) ((int)((x)&0xffff00ff))
#define major(x) ((int)(((u_int)(x) >> 8)&0xff))
#define makedev(x,y) ((dev_t)(((x) << 8) | (y)))
#define bsd2osf_dev(dev) (major(dev) << 20 | minor(dev))
#define osf2bsd_dev(dev) makedev(((dev) >> 20) & 0xfff, (dev) & 0xfffff)
#endif
/*
* Convert from a stat structure to an osf1 stat structure.
*/
static void
cvtstat2osf1(st, ost)
struct stat *st;
struct osf1_stat *ost;
{
ost->st_dev = bsd2osf_dev(st->st_dev);
ost->st_ino = st->st_ino;
ost->st_mode = st->st_mode;
ost->st_nlink = st->st_nlink;
ost->st_uid = st->st_uid == -2 ? (u_int16_t) -2 : st->st_uid;
ost->st_gid = st->st_gid == -2 ? (u_int16_t) -2 : st->st_gid;
ost->st_rdev = bsd2osf_dev(st->st_rdev);
ost->st_size = st->st_size;
ost->st_atime_sec = st->st_atime;
ost->st_spare1 = 0;
ost->st_mtime_sec = st->st_mtime;
ost->st_spare2 = 0;
ost->st_ctime_sec = st->st_ctime;
ost->st_spare3 = 0;
ost->st_blksize = st->st_blksize;
ost->st_blocks = st->st_blocks;
ost->st_flags = st->st_flags;
ost->st_gen = st->st_gen;
}
int
osf1_mknod(p, uap)
struct proc *p;
struct osf1_mknod_args *uap;
{
#if notanymore
struct mknod_args a;
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(p, &sg, uap->path);
SCARG(&a, path) = SCARG(uap, path);
SCARG(&a, mode) = SCARG(uap, mode);
SCARG(&a, dev) = osf2bsd_dev(SCARG(uap, dev));
return mknod(p, &a);
#endif
printf("osf1_mknod no longer implemented\n");
return ENOSYS;
}
int
osf1_access(p, uap)
struct proc *p;
struct osf1_access_args *uap;
{
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(p, &sg, uap->path);
return access(p, (struct access_args *)uap);
}
struct osf1_flock {
short l_type;
short l_whence;
off_t l_start;
off_t l_len;
pid_t l_pid;
};
int
osf1_fcntl(p, uap)
struct proc *p;
struct osf1_fcntl_args *uap;
{
int error;
long tmp;
caddr_t oarg, sg;
struct fcntl_args a;
struct osf1_flock osf_flock;
struct flock bsd_flock;
struct flock *nflock;
error = 0;
switch (SCARG(uap, cmd)) {
case F_SETFL:
SCARG(&a, fd) = SCARG(uap, fd);
SCARG(&a, cmd) = F_SETFL;
/* need to translate flags here */
tmp = 0;
if ((long)SCARG(uap, arg) & OSF1_FNONBLOCK)
tmp |= FNONBLOCK;
if ((long)SCARG(uap, arg) & OSF1_FAPPEND)
tmp |= FAPPEND;
if ((long)SCARG(uap, arg) & OSF1_FDEFER)
tmp |= FDEFER;
if ((long)SCARG(uap, arg) & OSF1_FASYNC)
tmp |= FASYNC;
if ((long)SCARG(uap, arg) & OSF1_FCREAT)
tmp |= O_CREAT;
if ((long)SCARG(uap, arg) & OSF1_FTRUNC)
tmp |= O_TRUNC;
if ((long)SCARG(uap, arg) & OSF1_FEXCL)
tmp |= O_EXCL;
if ((long)SCARG(uap, arg) & OSF1_FNDELAY)
tmp |= FNDELAY;
if ((long)SCARG(uap, arg) & OSF1_FSYNC)
tmp |= FFSYNC;
SCARG(&a, arg) = tmp;
error = fcntl(p, &a);
break;
case F_SETLK:
case F_SETLKW:
case F_GETLK:
/*
* The OSF/1 flock stucture has a different order than
* the BSD one, but all else is the same. We must
* reorder the one we've gotten so that flock() groks it.
*/
if ((error = copyin(uap->arg, &osf_flock, sizeof(osf_flock))))
return error;
bsd_flock.l_type = osf_flock.l_type;
bsd_flock.l_whence = osf_flock.l_whence;
bsd_flock.l_start = osf_flock.l_start;
bsd_flock.l_len = osf_flock.l_len;
bsd_flock.l_pid = osf_flock.l_pid;
sg = stackgap_init();
nflock = stackgap_alloc(&sg, sizeof(struct flock));
if ((error = copyout(&bsd_flock, nflock, sizeof(bsd_flock))) != 0)
return error;
oarg = uap->arg;
uap->arg = nflock;
error = fcntl(p, (struct fcntl_args *) uap);
/* if (error) {
printf("fcntl called with cmd=%d, args=0x%lx\n returns %d\n",uap->cmd,(long)uap->arg,error);
printf("bsd_flock.l_type = 0x%x\n", bsd_flock.l_type);
printf("bsd_flock.l_whence = 0x%x\n", bsd_flock.l_whence);
printf("bsd_flock.l_start = 0x%lx\n", bsd_flock.l_start);
printf("bsd_flock.l_len = 0x%lx\n", bsd_flock.l_len);
printf("bsd_flock.l_pid = 0x%x\n", bsd_flock.l_pid);
}
*/
if ((uap->cmd == F_GETLK) && !error) {
osf_flock.l_type = F_UNLCK;
if ((error = copyout(&osf_flock, oarg,
sizeof(osf_flock))))
return error;
}
break;
default:
error = fcntl(p, (struct fcntl_args *) uap);
if ((uap->cmd == OSF1_F_GETFL) && !error ) {
tmp = p->p_retval[0] & O_ACCMODE;
if (p->p_retval[0] & FNONBLOCK)
tmp |= OSF1_FNONBLOCK;
if (p->p_retval[0] & FAPPEND)
tmp |= OSF1_FAPPEND;
if (p->p_retval[0] & FDEFER)
tmp |= OSF1_FDEFER;
if (p->p_retval[0] & FASYNC)
tmp |= OSF1_FASYNC;
if (p->p_retval[0] & O_CREAT)
tmp |= OSF1_FCREAT;
if (p->p_retval[0] & O_TRUNC)
tmp |= OSF1_FTRUNC;
if (p->p_retval[0] & O_EXCL)
tmp |= OSF1_FEXCL;
if (p->p_retval[0] & FNDELAY)
tmp |= OSF1_FNDELAY;
if (p->p_retval[0] & FFSYNC)
tmp |= OSF1_FSYNC;
p->p_retval[0] = tmp;
}
}
return (error);
}
#if 0
int
osf1_fcntl(p, uap)
struct proc *p;
struct osf1_fcntl_args *uap;
{
struct fcntl_args a;
long tmp;
int error;
SCARG(&a, fd) = SCARG(uap, fd);
switch (SCARG(uap, cmd)) {
case OSF1_F_DUPFD:
SCARG(&a, cmd) = F_DUPFD;
SCARG(&a, arg) = (long)SCARG(uap, arg);
break;
case OSF1_F_GETFD:
SCARG(&a, cmd) = F_GETFD;
SCARG(&a, arg) = (long)SCARG(uap, arg);
break;
case OSF1_F_SETFD:
SCARG(&a, cmd) = F_SETFD;
SCARG(&a, arg) = (long)SCARG(uap, arg);
break;
case OSF1_F_GETFL:
SCARG(&a, cmd) = F_GETFL;
SCARG(&a, arg) = (long)SCARG(uap, arg); /* ignored */
break;
case OSF1_F_SETFL:
SCARG(&a, cmd) = F_SETFL;
tmp = 0;
if ((long)SCARG(uap, arg) & OSF1_FAPPEND)
tmp |= FAPPEND;
if ((long)SCARG(uap, arg) & OSF1_FNONBLOCK)
tmp |= FNONBLOCK;
if ((long)SCARG(uap, arg) & OSF1_FASYNC)
tmp |= FASYNC;
if ((long)SCARG(uap, arg) & OSF1_FSYNC)
tmp |= FFSYNC;
SCARG(&a, arg) = tmp;
break;
default: /* XXX other cases */
return (EINVAL);
}
error = fcntl(p, &a);
if (error)
return error;
switch (SCARG(uap, cmd)) {
case OSF1_F_GETFL:
/* XXX */
break;
}
return error;
}
#endif
int
osf1_socket(p, uap)
struct proc *p;
struct osf1_socket_args *uap;
{
struct socket_args a;
if (SCARG(uap, type) > AF_LINK)
return (EINVAL); /* XXX After AF_LINK, divergence. */
SCARG(&a, domain) = SCARG(uap, domain);
SCARG(&a, type) = SCARG(uap, type);
SCARG(&a, protocol) = SCARG(uap, protocol);
return socket(p, &a);
}
int
osf1_sendto(p, uap)
struct proc *p;
register struct osf1_sendto_args *uap;
{
struct sendto_args a;
if (SCARG(uap, flags) & ~0x7f) /* unsupported flags */
return (EINVAL);
SCARG(&a, s) = SCARG(uap, s);
SCARG(&a, buf) = SCARG(uap, buf);
SCARG(&a, len) = SCARG(uap, len);
SCARG(&a, flags) = SCARG(uap, flags);
SCARG(&a, to) = (caddr_t)SCARG(uap, to);
SCARG(&a, tolen) = SCARG(uap, tolen);
return sendto(p, &a);
}
int
osf1_reboot(p, uap)
struct proc *p;
struct osf1_reboot_args *uap;
{
struct reboot_args a;
if (SCARG(uap, opt) & ~OSF1_RB_ALLFLAGS &&
SCARG(uap, opt) & (OSF1_RB_ALTBOOT|OSF1_RB_UNIPROC))
return (EINVAL);
SCARG(&a, opt) = 0;
if (SCARG(uap, opt) & OSF1_RB_ASKNAME)
SCARG(&a, opt) |= RB_ASKNAME;
if (SCARG(uap, opt) & OSF1_RB_SINGLE)
SCARG(&a, opt) |= RB_SINGLE;
if (SCARG(uap, opt) & OSF1_RB_NOSYNC)
SCARG(&a, opt) |= RB_NOSYNC;
if (SCARG(uap, opt) & OSF1_RB_HALT)
SCARG(&a, opt) |= RB_HALT;
if (SCARG(uap, opt) & OSF1_RB_INITNAME)
SCARG(&a, opt) |= RB_INITNAME;
if (SCARG(uap, opt) & OSF1_RB_DFLTROOT)
SCARG(&a, opt) |= RB_DFLTROOT;
return reboot(p, &a);
}
int
osf1_lseek(p, uap)
struct proc *p;
struct osf1_lseek_args *uap;
{
struct lseek_args a;
SCARG(&a, fd) = SCARG(uap, fd);
SCARG(&a, pad) = 0;
SCARG(&a, offset) = SCARG(uap, offset);
SCARG(&a, whence) = SCARG(uap, whence);
return lseek(p, &a);
}
/*
* OSF/1 defines _POSIX_SAVED_IDS, which means that our normal
* setuid() won't work.
*
* Instead, by P1003.1b-1993, setuid() is supposed to work like:
* If the process has appropriate [super-user] priviledges, the
* setuid() function sets the real user ID, effective user
* ID, and the saved set-user-ID to uid.
* If the process does not have appropriate priviledges, but uid
* is equal to the real user ID or the saved set-user-ID, the
* setuid() function sets the effective user ID to uid; the
* real user ID and saved set-user-ID remain unchanged by
* this function call.
*/
int
osf1_setuid(p, uap)
struct proc *p;
struct osf1_setuid_args *uap;
{
int error;
uid_t uid;
register struct pcred *pc;
uid = SCARG(uap, uid);
pc = p->p_cred;
if ((error = suser(p)) != 0 &&
uid != pc->p_ruid && uid != pc->p_svuid)
return (error);
pc->pc_ucred = crcopy(pc->pc_ucred);
pc->pc_ucred->cr_uid = uid;
if (error == 0) {
(void)chgproccnt(pc->p_ruid, -1);
(void)chgproccnt(uid, 1);
pc->p_ruid = uid;
pc->p_svuid = uid;
}
p->p_flag |= P_SUGID;
return (0);
}
/*
* OSF/1 defines _POSIX_SAVED_IDS, which means that our normal
* setgid() won't work.
*
* If you change "uid" to "gid" in the discussion, above, about
* setuid(), you'll get a correct description of setgid().
*/
int
osf1_setgid(p, uap)
struct proc *p;
struct osf1_setgid_args *uap;
{
int error;
gid_t gid;
register struct pcred *pc;
gid = SCARG(uap, gid);
pc = p->p_cred;
if (((error = suser(p)) != 0 ) &&
gid != pc->p_rgid && gid != pc->p_svgid)
return (error);
pc->pc_ucred = crcopy(pc->pc_ucred);
pc->pc_ucred->cr_gid = gid;
if (error == 0) {
pc->p_rgid = gid;
pc->p_svgid = gid;
}
p->p_flag |= P_SUGID;
return (0);
}
/*
* The structures end up being the same... but we can't be sure that
* the other word of our iov_len is zero!
*/
struct osf1_iovec {
char *iov_base;
int iov_len;
};
#define STACKGAPLEN 400
int
osf1_readv(p, uap)
struct proc *p;
struct osf1_readv_args *uap;
{
int error, osize, nsize, i;
caddr_t sg;
struct readv_args /* {
syscallarg(int) fd;
syscallarg(struct iovec *) iovp;
syscallarg(u_int) iovcnt;
} */ a;
struct osf1_iovec *oio;
struct iovec *nio;
sg = stackgap_init();
if (SCARG(uap, iovcnt) > (STACKGAPLEN / sizeof (struct iovec)))
return (EINVAL);
osize = SCARG(uap, iovcnt) * sizeof (struct osf1_iovec);
nsize = SCARG(uap, iovcnt) * sizeof (struct iovec);
oio = malloc(osize, M_TEMP, M_WAITOK);
nio = malloc(nsize, M_TEMP, M_WAITOK);
error = 0;
if ((error = copyin(SCARG(uap, iovp), oio, osize)))
goto punt;
for (i = 0; i < SCARG(uap, iovcnt); i++) {
nio[i].iov_base = oio[i].iov_base;
nio[i].iov_len = oio[i].iov_len;
}
SCARG(&a, fd) = SCARG(uap, fd);
SCARG(&a, iovp) = stackgap_alloc(&sg, nsize);
SCARG(&a, iovcnt) = SCARG(uap, iovcnt);
if ((error = copyout(nio, (caddr_t)SCARG(&a, iovp), nsize)))
goto punt;
error = readv(p, &a);
punt:
free(oio, M_TEMP);
free(nio, M_TEMP);
return (error);
}
int
osf1_writev(p, uap)
struct proc *p;
struct osf1_writev_args *uap;
{
int error, i, nsize, osize;
caddr_t sg;
struct writev_args /* {
syscallarg(int) fd;
syscallarg(struct iovec *) iovp;
syscallarg(u_int) iovcnt;
} */ a;
struct osf1_iovec *oio;
struct iovec *nio;
sg = stackgap_init();
if (SCARG(uap, iovcnt) > (STACKGAPLEN / sizeof (struct iovec)))
return (EINVAL);
osize = SCARG(uap, iovcnt) * sizeof (struct osf1_iovec);
nsize = SCARG(uap, iovcnt) * sizeof (struct iovec);
oio = malloc(osize, M_TEMP, M_WAITOK);
nio = malloc(nsize, M_TEMP, M_WAITOK);
error = 0;
if ((error = copyin(SCARG(uap, iovp), oio, osize)))
goto punt;
for (i = 0; i < SCARG(uap, iovcnt); i++) {
nio[i].iov_base = oio[i].iov_base;
nio[i].iov_len = oio[i].iov_len;
}
SCARG(&a, fd) = SCARG(uap, fd);
SCARG(&a, iovp) = stackgap_alloc(&sg, nsize);
SCARG(&a, iovcnt) = SCARG(uap, iovcnt);
if ((error = copyout(nio, (caddr_t)SCARG(&a, iovp), nsize)))
goto punt;
error = writev(p, &a);
punt:
free(oio, M_TEMP);
free(nio, M_TEMP);
return (error);
}
/*
* More of the stupid off_t padding!
*/
int
osf1_truncate(p, uap)
struct proc *p;
struct osf1_truncate_args *uap;
{
caddr_t sg;
struct truncate_args a;
sg = stackgap_init();
CHECKALTEXIST(p, &sg, uap->path);
SCARG(&a, path) = SCARG(uap, path);
SCARG(&a, pad) = 0;
SCARG(&a, length) = SCARG(uap, length);
return truncate(p, &a);
}
int
osf1_ftruncate(p, uap)
struct proc *p;
struct osf1_ftruncate_args *uap;
{
struct ftruncate_args a;
SCARG(&a, fd) = SCARG(uap, fd);
SCARG(&a, pad) = 0;
SCARG(&a, length) = SCARG(uap, length);
return ftruncate(p, &a);
}
static int
osf2bsd_pathconf(name)
int *name;
{
switch (*name) {
case _OSF1_PC_LINK_MAX:
case _OSF1_PC_MAX_CANON:
case _OSF1_PC_MAX_INPUT:
case _OSF1_PC_NAME_MAX:
*name -= 10;
break;
case _OSF1_PC_PATH_MAX:
case _OSF1_PC_PIPE_BUF:
*name -= 9;
case _OSF1_PC_NO_TRUNC:
*name = _PC_NO_TRUNC;
break;
case _OSF1_PC_CHOWN_RESTRICTED:
*name = _PC_CHOWN_RESTRICTED;
break;
case _OSF1_PC_VDISABLE:
*name = _PC_VDISABLE;
break;
default:
return (EINVAL);
}
return 0;
}
int
osf1_pathconf(p, uap)
struct proc *p;
struct osf1_pathconf_args *uap;
{
if (osf2bsd_pathconf(&uap->name))
return (EINVAL);
else
return (pathconf(p, (void *)uap));
}
int
osf1_fpathconf(p, uap)
struct proc *p;
struct osf1_fpathconf_args *uap;
{
if (osf2bsd_pathconf(&uap->name))
return (EINVAL);
else
return (fpathconf(p, (void *)uap));
}
int
osf1_getrusage(p, uap)
struct proc *p;
struct osf1_getrusage_args *uap;
{
struct rusage *rup;
struct osf1_rusage oru;
switch (uap->who) {
case RUSAGE_SELF:
rup = &p->p_stats->p_ru;
calcru(p, &rup->ru_utime, &rup->ru_stime, NULL);
break;
case RUSAGE_CHILDREN:
rup = &p->p_stats->p_cru;
break;
default:
return (EINVAL);
}
TV_CP(rup->ru_utime, oru.ru_utime);
TV_CP(rup->ru_stime, oru.ru_stime);
bcopy(&(rup->ru_first), &(oru.ru_first),
(&(oru.ru_last) - &(oru.ru_first)));
return (copyout((caddr_t)&oru, (caddr_t)uap->rusage,
sizeof (struct osf1_rusage)));
}
int
osf1_wait4(p, uap)
struct proc *p;
struct osf1_wait4_args *uap;
{
int error;
caddr_t sg;
struct osf1_rusage *orusage, oru;
struct rusage *rusage = NULL, ru;
orusage = SCARG(uap, rusage);
if (orusage) {
sg = stackgap_init();
rusage = stackgap_alloc(&sg, sizeof(struct rusage));
SCARG(uap, rusage) = (struct osf1_rusage *)rusage;
}
if ((error = wait4(p, (struct wait_args *)uap)))
return error;
if (orusage && (error = copyin(rusage, &ru, sizeof(ru)) == 0)){
TV_CP(ru.ru_utime, oru.ru_utime);
TV_CP(ru.ru_stime, oru.ru_stime);
bcopy(&ru.ru_first, &oru.ru_first,
(&(oru.ru_last) - &(oru.ru_first)));
copyout(&oru, orusage, sizeof (struct osf1_rusage));
}
return (0);
}
int
osf1_madvise(p, uap)
struct proc *p;
struct osf1_madvise_args *uap;
{
/* XXX */
return EINVAL;
}
int
osf1_execve(p, uap)
struct proc *p;
struct osf1_execve_args *uap;
{
caddr_t sg;
struct execve_args ap;
sg = stackgap_init();
CHECKALTEXIST(p, &sg, SCARG(uap, path));
SCARG(&ap, fname) = SCARG(uap, path);
SCARG(&ap, argv) = SCARG(uap, argp);
SCARG(&ap, envv) = SCARG(uap, envp);
return execve(p, &ap);
}
int
osf1_usleep_thread(p, uap)
struct proc *p;
struct osf1_usleep_thread_args *uap;
{
int error, s, timo;
struct osf1_timeval time;
struct timeval difftv, endtv, sleeptv, tv;
if ((error = copyin(SCARG(uap, sleep), &time, sizeof time)))
return (error);
sleeptv.tv_sec = (u_long)time.tv_sec;
sleeptv.tv_usec = (u_long)time.tv_usec;
timo = tvtohz(&sleeptv);
/*
* Some callers use usleep(0) as a sort of thread-yield so make
* sure that the timeout is non-zero.
*/
if (timo == 0)
timo = 1;
s = splclock();
microtime(&tv);
splx(s);
tsleep(p, PUSER|PCATCH, "OSF/1", timo);
if (SCARG(uap, slept) != NULL) {
s = splclock();
microtime(&endtv);
timersub(&time, &endtv, &difftv);
splx(s);
if (tv.tv_sec < 0 || tv.tv_usec < 0)
tv.tv_sec = tv.tv_usec = 0;
TV_CP(difftv, time)
error = copyout(&time, SCARG(uap, slept), sizeof time);
}
return (error);
}
int osf1_gettimeofday(p, uap)
struct proc *p;
register struct osf1_gettimeofday_args *uap;
{
int error;
struct timeval atv;
struct osf1_timeval otv;
error = 0;
if (uap->tp) {
microtime(&atv);
otv.tv_sec = atv.tv_sec;
otv.tv_usec = atv.tv_usec;
if ((error = copyout((caddr_t)&otv, (caddr_t)uap->tp,
sizeof (otv))))
return (error);
}
if (uap->tzp)
error = copyout((caddr_t)&tz, (caddr_t)uap->tzp, sizeof (tz));
return (error);
}
int osf1_select(p, uap)
struct proc *p;
register struct osf1_select_args *uap;
{
if (uap->tv) {
int error;
caddr_t sg;
struct osf1_timeval otv;
struct timeval tv;
sg = stackgap_init();
if ((error=copyin((caddr_t)uap->tv,(caddr_t)&otv,sizeof(otv))))
return(error);
TV_CP(otv,tv);
uap->tv = stackgap_alloc(&sg, sizeof(struct timeval));
if ((error=copyout((caddr_t)&tv, (caddr_t)uap->tv,sizeof(tv))))
return(error);
}
return(select(p, (struct select_args *)uap));
}
int
osf1_setitimer(p, uap)
struct proc *p;
struct osf1_setitimer_args *uap;
{
int error;
caddr_t old_oitv, sg;
struct itimerval itv;
struct osf1_itimerval otv;
error = 0;
old_oitv = (caddr_t)uap->oitv;
sg = stackgap_init();
if ((error = copyin((caddr_t)uap->itv,(caddr_t)&otv,sizeof(otv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
TV_CP(otv.it_interval,itv.it_interval);
TV_CP(otv.it_value,itv.it_value);
uap->itv = stackgap_alloc(&sg, sizeof(struct itimerval));
if ((error = copyout((caddr_t)&itv,(caddr_t)uap->itv,sizeof(itv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
uap->oitv = stackgap_alloc(&sg, sizeof(struct itimerval));
if ((error = setitimer(p, (struct setitimer_args *)uap))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
if ((error = copyin((caddr_t)uap->oitv,(caddr_t)&itv,sizeof(itv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
TV_CP(itv.it_interval,otv.it_interval);
TV_CP(itv.it_value,otv.it_value);
if (old_oitv
&& (error = copyout((caddr_t)&otv, old_oitv, sizeof(otv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
}
return error;
}
int
osf1_getitimer(p, uap)
struct proc *p;
struct osf1_getitimer_args *uap;
{
int error;
caddr_t old_itv, sg;
struct itimerval itv;
struct osf1_itimerval otv;
error = 0;
old_itv = (caddr_t)uap->itv;
sg = stackgap_init();
uap->itv = stackgap_alloc(&sg, sizeof(struct itimerval));
if ((error = getitimer(p, (struct getitimer_args *)uap))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
if ((error = copyin((caddr_t)uap->itv,(caddr_t)&itv,sizeof(itv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
return error;
}
TV_CP(itv.it_interval,otv.it_interval);
TV_CP(itv.it_value,otv.it_value);
if ((error = copyout((caddr_t)&otv, old_itv, sizeof(otv)))) {
printf("%s(%d): error = %d\n", __FILE__, __LINE__, error);
}
return error;
}
int
osf1_proplist_syscall(p, uap)
struct proc *p;
struct osf1_proplist_syscall_args *uap;
{
return(EOPNOTSUPP);
}
int
osf1_ntpgettime(p, uap)
struct proc *p;
struct osf1_ntpgettime_args *uap;
{
return(ENOSYS);
}
int
osf1_ntpadjtime(p, uap)
struct proc *p;
struct osf1_ntpadjtime_args *uap;
{
return(ENOSYS);
}
int
osf1_setpgrp(p, uap)
struct proc *p;
struct osf1_setpgrp_args *uap;
{
return(setpgid(p, (struct setpgid_args *)uap));
}
int
osf1_uswitch(p, uap)
struct proc *p;
struct osf1_uswitch_args *uap;
{
int rv;
vm_map_entry_t entry;
vm_offset_t zero;
zero = 0;
if (uap->cmd == OSF1_USC_GET) {
if (vm_map_lookup_entry(&(p->p_vmspace->vm_map),0, &entry))
p->p_retval[0] = OSF1_USW_NULLP;
else
p->p_retval[0] = 0;
return(KERN_SUCCESS);
} else if (uap->cmd == OSF1_USC_SET)
if (uap->mask & OSF1_USW_NULLP) {
rv = vm_mmap(&(p->p_vmspace->vm_map), &zero, PAGE_SIZE,
VM_PROT_READ, VM_PROT_ALL,
MAP_PRIVATE | MAP_FIXED | MAP_ANON, NULL, 0);
if (!rv)
return(KERN_SUCCESS);
else {
printf(
"osf1_uswitch:vm_mmap of zero page failed with status %d\n",
rv);
return(rv);
}
}
return(EINVAL);
}
int
osf1_classcntl(p, uap)
struct proc *p;
struct osf1_classcntl_args *uap;
{
return(EACCES); /* class scheduling not enabled */
}
struct osf1_tbl_loadavg
{
union {
long l[3];
double d[3];
} tl_avenrun;
int tl_lscale;
long tl_mach_factor[3]; /* ???? */
};
struct osf1_tbl_sysinfo {
long si_user;
long si_nice;
long si_sys;
long si_idle;
long si_hz;
long si_phz;
long si_boottime;
long wait;
};
#define TBL_LOADAVG 3
#define TBL_SYSINFO 12
int
osf1_table(p, uap)
struct proc *p;
struct osf1_table_args /*{
long id;
long index;
void *addr;
long nel;
u_long lel;
}*/ *uap;
{
int retval;
struct osf1_tbl_loadavg ld;
struct osf1_tbl_sysinfo si;
retval = 0;
switch(uap->id) {
case TBL_LOADAVG: /* xemacs wants this */
if ((uap->index != 0) || (uap->nel != 1))
retval = EINVAL;
bcopy(&averunnable, &ld, sizeof(averunnable));
ld.tl_lscale = (u_int)averunnable.fscale;
retval = copyout(&ld, uap->addr, sizeof(ld));
break;
case TBL_SYSINFO:
if ((uap->index != 0) || (uap->nel != 1))
retval = EINVAL;
bzero(&si, sizeof(si));
#if 0
si.si_user = cp_time[CP_USER];
si.si_nice = cp_time[CP_NICE];
si.si_sys = cp_time[CP_SYS];
si.si_idle = cp_time[CP_IDLE];
si.wait = cp_time[CP_INTR];
#endif
si.si_hz = hz;
si.si_phz = profhz;
si.si_boottime = boottime.tv_sec;
retval = copyout(&si, uap->addr, sizeof(si));
break;
default:
printf("osf1_table: %ld, %ld, %p, %ld %ld\n",
uap->id, uap->index, uap->addr, uap->nel, uap->lel);
retval = EINVAL;
}
return retval;
}
int
osf1_sysinfo(p, uap)
struct proc *p;
struct osf1_sysinfo_args /*{
int cmd;
char *buf;
long count;
}*/ *uap;
{
int name[2], retval;
size_t bytes, len;
char *string;
string = NULL;
switch(uap->cmd) {
case 1: /* OS */
string = "OSF1";
break;
case 2: /* hostname, from ogethostname */
len = uap->count;
name[0] = CTL_KERN;
name[1] = KERN_HOSTNAME;
retval = userland_sysctl(p, name, 2, uap->buf, &len,
1, 0, 0, &bytes);
p->p_retval[0] = bytes;
return(retval);
break;
case 3: /* release of osf1 */
string = "V4.0";
break;
case 4: /* minor version of osf1 */
string = "878";
break;
case 5: /* machine or arch */
case 6:
string = "alpha";
break;
case 7: /* serial number, real osf1 returns 0! */
string = "0";
break;
case 8: /* HW vendor */
string = "Digital";
break;
case 9: /* dunno, this is what du does.. */
return(ENOSYS);
break;
default:
return(EINVAL);
}
bytes = min(uap->count, strlen(string)+1);
copyout(string, uap->buf, bytes);
p->p_retval[0] = bytes;
return(0);
}
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