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NetBSD/sys/compat/osf1/osf1_descrip.c
cgd 2055d9d08d emulate (parts of) flock
1999-06-26 01:24:41 +00:00

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/* $NetBSD: osf1_descrip.c,v 1.5 1999/06/26 01:24:41 cgd Exp $ */
/*
* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* 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.
*/
#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/syscallargs.h>
#include <sys/exec.h>
#include <sys/vnode.h>
#include <sys/socketvar.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/wait.h>
#include <vm/vm.h>
#include <compat/osf1/osf1.h>
#include <compat/osf1/osf1_syscallargs.h>
#include <compat/osf1/osf1_cvt.h>
int
osf1_sys_fcntl(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_fcntl_args *uap = v;
struct sys_fcntl_args a;
struct osf1_flock oflock;
struct flock nflock;
unsigned long xfl, leftovers;
caddr_t sg;
int error;
sg = stackgap_init(p->p_emul);
SCARG(&a, fd) = SCARG(uap, fd);
leftovers = 0;
switch (SCARG(uap, cmd)) {
case OSF1_F_DUPFD:
SCARG(&a, cmd) = F_DUPFD;
SCARG(&a, arg) = SCARG(uap, arg);
break;
case OSF1_F_GETFD:
SCARG(&a, cmd) = F_GETFD;
SCARG(&a, arg) = 0; /* ignored */
break;
case OSF1_F_SETFD:
SCARG(&a, cmd) = F_SETFD;
SCARG(&a, arg) = (void *)emul_flags_translate(
osf1_fcntl_getsetfd_flags_xtab,
(unsigned long)SCARG(uap, arg), &leftovers);
break;
case OSF1_F_GETFL:
SCARG(&a, cmd) = F_GETFL;
SCARG(&a, arg) = 0; /* ignored */
break;
case OSF1_F_SETFL:
SCARG(&a, cmd) = F_SETFL;
xfl = emul_flags_translate(osf1_open_flags_xtab,
(unsigned long)SCARG(uap, arg), &leftovers);
xfl |= emul_flags_translate(osf1_fcntl_getsetfl_flags_xtab,
leftovers, &leftovers);
SCARG(&a, arg) = (void *)xfl;
break;
case OSF1_F_GETOWN: /* XXX not yet supported */
case OSF1_F_SETOWN: /* XXX not yet supported */
/* XXX translate. */
return (EINVAL);
case OSF1_F_GETLK:
case OSF1_F_SETLK:
case OSF1_F_SETLKW:
if (SCARG(uap, cmd) == OSF1_F_GETLK)
SCARG(&a, cmd) = F_GETLK;
else if (SCARG(uap, cmd) == OSF1_F_SETLK)
SCARG(&a, cmd) = F_SETLK;
else if (SCARG(uap, cmd) == OSF1_F_SETLKW)
SCARG(&a, cmd) = F_SETLKW;
SCARG(&a, arg) = stackgap_alloc(&sg, sizeof nflock);
error = copyin(SCARG(uap, arg), &oflock, sizeof oflock);
if (error == 0)
error = osf1_cvt_flock_to_native(&oflock, &nflock);
if (error == 0)
error = copyout(&nflock, SCARG(&a, arg),
sizeof nflock);
if (error != 0)
return (error);
break;
case OSF1_F_RGETLK: /* [lock mgr op] XXX not supported */
case OSF1_F_RSETLK: /* [lock mgr op] XXX not supported */
case OSF1_F_CNVT: /* [lock mgr op] XXX not supported */
case OSF1_F_RSETLKW: /* [lock mgr op] XXX not supported */
case OSF1_F_PURGEFS: /* [lock mgr op] XXX not supported */
case OSF1_F_PURGENFS: /* [DECsafe op] XXX not supported */
default:
/* XXX syslog? */
return (EINVAL);
}
if (leftovers != 0)
return (EINVAL);
error = sys_fcntl(p, &a, retval);
if (error)
return error;
switch (SCARG(uap, cmd)) {
case OSF1_F_GETFD:
retval[0] = emul_flags_translate(
osf1_fcntl_getsetfd_flags_rxtab, retval[0], NULL);
break;
case OSF1_F_GETFL:
xfl = emul_flags_translate(osf1_open_flags_rxtab,
retval[0], &leftovers);
xfl |= emul_flags_translate(osf1_fcntl_getsetfl_flags_rxtab,
leftovers, NULL);
retval[0] = xfl;
break;
case OSF1_F_GETLK:
error = copyin(SCARG(&a, arg), &nflock, sizeof nflock);
if (error == 0) {
osf1_cvt_flock_from_native(&nflock, &oflock);
error = copyout(&oflock, SCARG(uap, arg),
sizeof oflock);
}
break;
}
return error;
}
int
osf1_sys_fpathconf(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_fpathconf_args *uap = v;
struct sys_fpathconf_args a;
int error;
SCARG(&a, fd) = SCARG(uap, fd);
error = osf1_cvt_pathconf_name_to_native(SCARG(uap, name),
&SCARG(&a, name));
if (error == 0)
error = sys_fpathconf(p, &a, retval);
return (error);
}
/*
* Return status information about a file descriptor.
*/
int
osf1_sys_fstat(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_fstat_args *uap = v;
struct filedesc *fdp = p->p_fd;
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 ||
(fp->f_iflags & FIF_WANTCLOSE) != 0)
return (EBADF);
FILE_USE(fp);
switch (fp->f_type) {
case DTYPE_VNODE:
error = vn_stat((struct vnode *)fp->f_data, &ub, p);
break;
case DTYPE_SOCKET:
error = soo_stat((struct socket *)fp->f_data, &ub);
break;
default:
panic("ofstat");
/*NOTREACHED*/
}
osf1_cvt_stat_from_native(&ub, &oub);
if (error == 0)
error = copyout((caddr_t)&oub, (caddr_t)SCARG(uap, sb),
sizeof (oub));
FILE_UNUSE(fp, p);
return (error);
}
int
osf1_sys_ftruncate(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_ftruncate_args *uap = v;
struct sys_ftruncate_args a;
SCARG(&a, fd) = SCARG(uap, fd);
SCARG(&a, pad) = 0;
SCARG(&a, length) = SCARG(uap, length);
return sys_ftruncate(p, &a, retval);
}
int
osf1_sys_lseek(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct osf1_sys_lseek_args *uap = v;
struct sys_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 sys_lseek(p, &a, retval);
}
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