744 lines
16 KiB
C
744 lines
16 KiB
C
/* $NetBSD: svr4_fcntl.c,v 1.34 2000/03/30 11:27:19 augustss Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1994, 1997 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Christos Zoulas.
|
|
*
|
|
* 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 the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``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 FOUNDATION OR CONTRIBUTORS
|
|
* 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.
|
|
*/
|
|
|
|
#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/ioctl.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/vnode.h>
|
|
|
|
#include <sys/syscallargs.h>
|
|
|
|
#include <compat/svr4/svr4_types.h>
|
|
#include <compat/svr4/svr4_signal.h>
|
|
#include <compat/svr4/svr4_ucontext.h>
|
|
#include <compat/svr4/svr4_lwp.h>
|
|
#include <compat/svr4/svr4_syscallargs.h>
|
|
#include <compat/svr4/svr4_util.h>
|
|
#include <compat/svr4/svr4_fcntl.h>
|
|
|
|
static u_long svr4_to_bsd_cmd __P((u_long));
|
|
static int svr4_to_bsd_flags __P((int));
|
|
static int bsd_to_svr4_flags __P((int));
|
|
static void bsd_to_svr4_flock __P((struct flock *, struct svr4_flock *));
|
|
static void svr4_to_bsd_flock __P((struct svr4_flock *, struct flock *));
|
|
static void bsd_to_svr4_flock64 __P((struct flock *, struct svr4_flock64 *));
|
|
static void svr4_to_bsd_flock64 __P((struct svr4_flock64 *, struct flock *));
|
|
static int fd_revoke __P((struct proc *, int, register_t *));
|
|
static int fd_truncate __P((struct proc *, int, struct flock *, register_t *));
|
|
|
|
static u_long
|
|
svr4_to_bsd_cmd(cmd)
|
|
u_long cmd;
|
|
{
|
|
switch (cmd) {
|
|
case SVR4_F_DUPFD:
|
|
return F_DUPFD;
|
|
case SVR4_F_GETFD:
|
|
return F_GETFD;
|
|
case SVR4_F_SETFD:
|
|
return F_SETFD;
|
|
case SVR4_F_GETFL:
|
|
return F_GETFL;
|
|
case SVR4_F_SETFL:
|
|
return F_SETFL;
|
|
case SVR4_F_GETLK:
|
|
return F_GETLK;
|
|
case SVR4_F_SETLK:
|
|
return F_SETLK;
|
|
case SVR4_F_SETLKW:
|
|
return F_SETLKW;
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
|
|
static int
|
|
svr4_to_bsd_flags(l)
|
|
int l;
|
|
{
|
|
int r = 0;
|
|
r |= (l & SVR4_O_RDONLY) ? O_RDONLY : 0;
|
|
r |= (l & SVR4_O_WRONLY) ? O_WRONLY : 0;
|
|
r |= (l & SVR4_O_RDWR) ? O_RDWR : 0;
|
|
r |= (l & SVR4_O_NDELAY) ? O_NDELAY : 0;
|
|
r |= (l & SVR4_O_APPEND) ? O_APPEND : 0;
|
|
r |= (l & SVR4_O_SYNC) ? O_FSYNC : 0;
|
|
r |= (l & SVR4_O_RSYNC) ? O_RSYNC : 0;
|
|
r |= (l & SVR4_O_DSYNC) ? O_DSYNC : 0;
|
|
r |= (l & SVR4_O_NONBLOCK) ? O_NONBLOCK : 0;
|
|
r |= (l & SVR4_O_PRIV) ? O_EXLOCK : 0;
|
|
r |= (l & SVR4_O_CREAT) ? O_CREAT : 0;
|
|
r |= (l & SVR4_O_TRUNC) ? O_TRUNC : 0;
|
|
r |= (l & SVR4_O_EXCL) ? O_EXCL : 0;
|
|
r |= (l & SVR4_O_NOCTTY) ? O_NOCTTY : 0;
|
|
return r;
|
|
}
|
|
|
|
|
|
static int
|
|
bsd_to_svr4_flags(l)
|
|
int l;
|
|
{
|
|
int r = 0;
|
|
r |= (l & O_RDONLY) ? SVR4_O_RDONLY : 0;
|
|
r |= (l & O_WRONLY) ? SVR4_O_WRONLY : 0;
|
|
r |= (l & O_RDWR) ? SVR4_O_RDWR : 0;
|
|
r |= (l & O_NDELAY) ? SVR4_O_NDELAY : 0;
|
|
r |= (l & O_APPEND) ? SVR4_O_APPEND : 0;
|
|
r |= (l & O_FSYNC) ? SVR4_O_SYNC : 0;
|
|
r |= (l & O_RSYNC) ? SVR4_O_RSYNC : 0;
|
|
r |= (l & O_DSYNC) ? SVR4_O_DSYNC : 0;
|
|
r |= (l & O_NONBLOCK) ? SVR4_O_NONBLOCK : 0;
|
|
r |= (l & O_EXLOCK) ? SVR4_O_PRIV : 0;
|
|
r |= (l & O_CREAT) ? SVR4_O_CREAT : 0;
|
|
r |= (l & O_TRUNC) ? SVR4_O_TRUNC : 0;
|
|
r |= (l & O_EXCL) ? SVR4_O_EXCL : 0;
|
|
r |= (l & O_NOCTTY) ? SVR4_O_NOCTTY : 0;
|
|
return r;
|
|
}
|
|
|
|
|
|
static void
|
|
bsd_to_svr4_flock(iflp, oflp)
|
|
struct flock *iflp;
|
|
struct svr4_flock *oflp;
|
|
{
|
|
switch (iflp->l_type) {
|
|
case F_RDLCK:
|
|
oflp->l_type = SVR4_F_RDLCK;
|
|
break;
|
|
case F_WRLCK:
|
|
oflp->l_type = SVR4_F_WRLCK;
|
|
break;
|
|
case F_UNLCK:
|
|
oflp->l_type = SVR4_F_UNLCK;
|
|
break;
|
|
default:
|
|
oflp->l_type = -1;
|
|
break;
|
|
}
|
|
|
|
oflp->l_whence = (short) iflp->l_whence;
|
|
oflp->l_start = (svr4_off_t) iflp->l_start;
|
|
oflp->l_len = (svr4_off_t) iflp->l_len;
|
|
oflp->l_sysid = 0;
|
|
oflp->l_pid = (svr4_pid_t) iflp->l_pid;
|
|
}
|
|
|
|
|
|
static void
|
|
svr4_to_bsd_flock(iflp, oflp)
|
|
struct svr4_flock *iflp;
|
|
struct flock *oflp;
|
|
{
|
|
switch (iflp->l_type) {
|
|
case SVR4_F_RDLCK:
|
|
oflp->l_type = F_RDLCK;
|
|
break;
|
|
case SVR4_F_WRLCK:
|
|
oflp->l_type = F_WRLCK;
|
|
break;
|
|
case SVR4_F_UNLCK:
|
|
oflp->l_type = F_UNLCK;
|
|
break;
|
|
default:
|
|
oflp->l_type = -1;
|
|
break;
|
|
}
|
|
|
|
oflp->l_whence = iflp->l_whence;
|
|
oflp->l_start = (off_t) iflp->l_start;
|
|
oflp->l_len = (off_t) iflp->l_len;
|
|
oflp->l_pid = (pid_t) iflp->l_pid;
|
|
|
|
}
|
|
|
|
static void
|
|
bsd_to_svr4_flock64(iflp, oflp)
|
|
struct flock *iflp;
|
|
struct svr4_flock64 *oflp;
|
|
{
|
|
switch (iflp->l_type) {
|
|
case F_RDLCK:
|
|
oflp->l_type = SVR4_F_RDLCK;
|
|
break;
|
|
case F_WRLCK:
|
|
oflp->l_type = SVR4_F_WRLCK;
|
|
break;
|
|
case F_UNLCK:
|
|
oflp->l_type = SVR4_F_UNLCK;
|
|
break;
|
|
default:
|
|
oflp->l_type = -1;
|
|
break;
|
|
}
|
|
|
|
oflp->l_whence = (short) iflp->l_whence;
|
|
oflp->l_start = (svr4_off64_t) iflp->l_start;
|
|
oflp->l_len = (svr4_off64_t) iflp->l_len;
|
|
oflp->l_sysid = 0;
|
|
oflp->l_pid = (svr4_pid_t) iflp->l_pid;
|
|
}
|
|
|
|
|
|
static void
|
|
svr4_to_bsd_flock64(iflp, oflp)
|
|
struct svr4_flock64 *iflp;
|
|
struct flock *oflp;
|
|
{
|
|
switch (iflp->l_type) {
|
|
case SVR4_F_RDLCK:
|
|
oflp->l_type = F_RDLCK;
|
|
break;
|
|
case SVR4_F_WRLCK:
|
|
oflp->l_type = F_WRLCK;
|
|
break;
|
|
case SVR4_F_UNLCK:
|
|
oflp->l_type = F_UNLCK;
|
|
break;
|
|
default:
|
|
oflp->l_type = -1;
|
|
break;
|
|
}
|
|
|
|
oflp->l_whence = iflp->l_whence;
|
|
oflp->l_start = (off_t) iflp->l_start;
|
|
oflp->l_len = (off_t) iflp->l_len;
|
|
oflp->l_pid = (pid_t) iflp->l_pid;
|
|
|
|
}
|
|
|
|
|
|
static int
|
|
fd_revoke(p, fd, retval)
|
|
struct proc *p;
|
|
int fd;
|
|
register_t *retval;
|
|
{
|
|
struct filedesc *fdp = p->p_fd;
|
|
struct file *fp;
|
|
struct vnode *vp;
|
|
struct vattr vattr;
|
|
int error;
|
|
|
|
if ((u_int)fd >= fdp->fd_nfiles || (fp = fdp->fd_ofiles[fd]) == NULL)
|
|
return EBADF;
|
|
|
|
switch (fp->f_type) {
|
|
case DTYPE_VNODE:
|
|
vp = (struct vnode *) fp->f_data;
|
|
|
|
case DTYPE_SOCKET:
|
|
return EINVAL;
|
|
|
|
default:
|
|
panic("svr4_fcntl(F_REVOKE)");
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
if (vp->v_type != VCHR && vp->v_type != VBLK) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if ((error = VOP_GETATTR(vp, &vattr, p->p_ucred, p)) != 0)
|
|
goto out;
|
|
|
|
if (p->p_ucred->cr_uid != vattr.va_uid &&
|
|
(error = suser(p->p_ucred, &p->p_acflag)) != 0)
|
|
goto out;
|
|
|
|
if (vp->v_usecount > 1 || (vp->v_flag & VALIASED))
|
|
VOP_REVOKE(vp, REVOKEALL);
|
|
out:
|
|
vrele(vp);
|
|
return error;
|
|
}
|
|
|
|
|
|
static int
|
|
fd_truncate(p, fd, flp, retval)
|
|
struct proc *p;
|
|
int fd;
|
|
struct flock *flp;
|
|
register_t *retval;
|
|
{
|
|
struct filedesc *fdp = p->p_fd;
|
|
struct file *fp;
|
|
off_t start, length;
|
|
struct vnode *vp;
|
|
struct vattr vattr;
|
|
int error;
|
|
struct sys_ftruncate_args ft;
|
|
|
|
/*
|
|
* We only support truncating the file.
|
|
*/
|
|
if ((u_int)fd >= fdp->fd_nfiles || (fp = fdp->fd_ofiles[fd]) == NULL)
|
|
return EBADF;
|
|
|
|
vp = (struct vnode *)fp->f_data;
|
|
if (fp->f_type != DTYPE_VNODE || vp->v_type == VFIFO)
|
|
return ESPIPE;
|
|
|
|
if ((error = VOP_GETATTR(vp, &vattr, p->p_ucred, p)) != 0)
|
|
return error;
|
|
|
|
length = vattr.va_size;
|
|
|
|
switch (flp->l_whence) {
|
|
case SEEK_CUR:
|
|
start = fp->f_offset + flp->l_start;
|
|
break;
|
|
|
|
case SEEK_END:
|
|
start = flp->l_start + length;
|
|
break;
|
|
|
|
case SEEK_SET:
|
|
start = flp->l_start;
|
|
break;
|
|
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
|
|
if (start + flp->l_len < length) {
|
|
/* We don't support free'ing in the middle of the file */
|
|
return EINVAL;
|
|
}
|
|
|
|
SCARG(&ft, fd) = fd;
|
|
SCARG(&ft, length) = start;
|
|
|
|
return sys_ftruncate(p, &ft, retval);
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_open(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_open_args *uap = v;
|
|
int error;
|
|
struct sys_open_args cup;
|
|
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
|
|
SCARG(&cup, flags) = svr4_to_bsd_flags(SCARG(uap, flags));
|
|
|
|
if (SCARG(&cup, flags) & O_CREAT)
|
|
SVR4_CHECK_ALT_CREAT(p, &sg, SCARG(uap, path));
|
|
else
|
|
SVR4_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
|
|
|
|
SCARG(&cup, path) = SCARG(uap, path);
|
|
SCARG(&cup, mode) = SCARG(uap, mode);
|
|
error = sys_open(p, &cup, retval);
|
|
|
|
if (error)
|
|
return error;
|
|
|
|
if (!(SCARG(&cup, flags) & O_NOCTTY) && SESS_LEADER(p) &&
|
|
!(p->p_flag & P_CONTROLT)) {
|
|
struct filedesc *fdp = p->p_fd;
|
|
struct file *fp = fdp->fd_ofiles[*retval];
|
|
|
|
/* ignore any error, just give it a try */
|
|
if (fp->f_type == DTYPE_VNODE)
|
|
(fp->f_ops->fo_ioctl) (fp, TIOCSCTTY, (caddr_t) 0, p);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_open64(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
return svr4_sys_open(p, v, retval);
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_creat(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_creat_args *uap = v;
|
|
struct sys_open_args cup;
|
|
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
SVR4_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
|
|
|
|
SCARG(&cup, path) = SCARG(uap, path);
|
|
SCARG(&cup, mode) = SCARG(uap, mode);
|
|
SCARG(&cup, flags) = O_WRONLY | O_CREAT | O_TRUNC;
|
|
|
|
return sys_open(p, &cup, retval);
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_creat64(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
return svr4_sys_creat(p, v, retval);
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_llseek(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_llseek_args *uap = v;
|
|
struct sys_lseek_args ap;
|
|
|
|
SCARG(&ap, fd) = SCARG(uap, fd);
|
|
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
SCARG(&ap, offset) = (((long long) SCARG(uap, offset1)) << 32) |
|
|
SCARG(uap, offset2);
|
|
#else
|
|
SCARG(&ap, offset) = (((long long) SCARG(uap, offset2)) << 32) |
|
|
SCARG(uap, offset1);
|
|
#endif
|
|
SCARG(&ap, whence) = SCARG(uap, whence);
|
|
|
|
return sys_lseek(p, &ap, retval);
|
|
}
|
|
|
|
int
|
|
svr4_sys_access(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_access_args *uap = v;
|
|
struct sys_access_args cup;
|
|
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
SVR4_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
|
|
|
|
SCARG(&cup, path) = SCARG(uap, path);
|
|
SCARG(&cup, flags) = SCARG(uap, flags);
|
|
|
|
return sys_access(p, &cup, retval);
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_pread(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_pread_args *uap = v;
|
|
struct sys_pread_args pra;
|
|
|
|
/*
|
|
* Just translate the args structure and call the NetBSD
|
|
* pread(2) system call (offset type is 64-bit in NetBSD).
|
|
*/
|
|
SCARG(&pra, fd) = SCARG(uap, fd);
|
|
SCARG(&pra, buf) = SCARG(uap, buf);
|
|
SCARG(&pra, nbyte) = SCARG(uap, nbyte);
|
|
SCARG(&pra, offset) = SCARG(uap, off);
|
|
|
|
return (sys_pread(p, &pra, retval));
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_pread64(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
|
|
struct svr4_sys_pread64_args *uap = v;
|
|
struct sys_pread_args pra;
|
|
|
|
/*
|
|
* Just translate the args structure and call the NetBSD
|
|
* pread(2) system call (offset type is 64-bit in NetBSD).
|
|
*/
|
|
SCARG(&pra, fd) = SCARG(uap, fd);
|
|
SCARG(&pra, buf) = SCARG(uap, buf);
|
|
SCARG(&pra, nbyte) = SCARG(uap, nbyte);
|
|
SCARG(&pra, offset) = SCARG(uap, off);
|
|
|
|
return (sys_pread(p, &pra, retval));
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_pwrite(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_pwrite_args *uap = v;
|
|
struct sys_pwrite_args pwa;
|
|
|
|
/*
|
|
* Just translate the args structure and call the NetBSD
|
|
* pwrite(2) system call (offset type is 64-bit in NetBSD).
|
|
*/
|
|
SCARG(&pwa, fd) = SCARG(uap, fd);
|
|
SCARG(&pwa, buf) = SCARG(uap, buf);
|
|
SCARG(&pwa, nbyte) = SCARG(uap, nbyte);
|
|
SCARG(&pwa, offset) = SCARG(uap, off);
|
|
|
|
return (sys_pwrite(p, &pwa, retval));
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_pwrite64(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_pwrite64_args *uap = v;
|
|
struct sys_pwrite_args pwa;
|
|
|
|
/*
|
|
* Just translate the args structure and call the NetBSD
|
|
* pwrite(2) system call (offset type is 64-bit in NetBSD).
|
|
*/
|
|
SCARG(&pwa, fd) = SCARG(uap, fd);
|
|
SCARG(&pwa, buf) = SCARG(uap, buf);
|
|
SCARG(&pwa, nbyte) = SCARG(uap, nbyte);
|
|
SCARG(&pwa, offset) = SCARG(uap, off);
|
|
|
|
return (sys_pwrite(p, &pwa, retval));
|
|
}
|
|
|
|
|
|
int
|
|
svr4_sys_fcntl(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct svr4_sys_fcntl_args *uap = v;
|
|
int error;
|
|
struct sys_fcntl_args fa;
|
|
|
|
SCARG(&fa, fd) = SCARG(uap, fd);
|
|
SCARG(&fa, cmd) = svr4_to_bsd_cmd(SCARG(uap, cmd));
|
|
|
|
switch (SCARG(&fa, cmd)) {
|
|
case F_DUPFD:
|
|
case F_GETFD:
|
|
case F_SETFD:
|
|
SCARG(&fa, arg) = SCARG(uap, arg);
|
|
return sys_fcntl(p, &fa, retval);
|
|
|
|
case F_GETFL:
|
|
SCARG(&fa, arg) = SCARG(uap, arg);
|
|
error = sys_fcntl(p, &fa, retval);
|
|
if (error)
|
|
return error;
|
|
*retval = bsd_to_svr4_flags(*retval);
|
|
return error;
|
|
|
|
case F_SETFL:
|
|
{
|
|
/*
|
|
* we must save the O_ASYNC flag, as that is
|
|
* handled by ioctl(_, I_SETSIG, _) emulation.
|
|
*/
|
|
register_t flags;
|
|
int cmd;
|
|
|
|
cmd = SCARG(&fa, cmd); /* save it for a while */
|
|
|
|
SCARG(&fa, cmd) = F_GETFL;
|
|
if ((error = sys_fcntl(p, &fa, &flags)) != 0)
|
|
return error;
|
|
flags &= O_ASYNC;
|
|
flags |= svr4_to_bsd_flags((u_long) SCARG(uap, arg));
|
|
SCARG(&fa, cmd) = cmd;
|
|
SCARG(&fa, arg) = (void *) flags;
|
|
return sys_fcntl(p, &fa, retval);
|
|
}
|
|
|
|
case F_GETLK:
|
|
case F_SETLK:
|
|
case F_SETLKW:
|
|
{
|
|
struct svr4_flock ifl;
|
|
struct flock *flp, fl;
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
|
|
flp = stackgap_alloc(&sg, sizeof(struct flock));
|
|
SCARG(&fa, arg) = (void *) flp;
|
|
|
|
error = copyin(SCARG(uap, arg), &ifl, sizeof ifl);
|
|
if (error)
|
|
return error;
|
|
|
|
svr4_to_bsd_flock(&ifl, &fl);
|
|
|
|
error = copyout(&fl, flp, sizeof fl);
|
|
if (error)
|
|
return error;
|
|
|
|
error = sys_fcntl(p, &fa, retval);
|
|
if (error || SCARG(&fa, cmd) != F_GETLK)
|
|
return error;
|
|
|
|
error = copyin(flp, &fl, sizeof fl);
|
|
if (error)
|
|
return error;
|
|
|
|
bsd_to_svr4_flock(&fl, &ifl);
|
|
|
|
return copyout(&ifl, SCARG(uap, arg), sizeof ifl);
|
|
}
|
|
case -1:
|
|
switch (SCARG(uap, cmd)) {
|
|
case SVR4_F_DUP2FD:
|
|
{
|
|
struct sys_dup2_args du;
|
|
|
|
SCARG(&du, from) = SCARG(uap, fd);
|
|
SCARG(&du, to) = (int)SCARG(uap, arg);
|
|
error = sys_dup2(p, &du, retval);
|
|
if (error)
|
|
return error;
|
|
*retval = SCARG(&du, to);
|
|
return 0;
|
|
}
|
|
|
|
case SVR4_F_FREESP:
|
|
{
|
|
struct svr4_flock ifl;
|
|
struct flock fl;
|
|
|
|
error = copyin(SCARG(uap, arg), &ifl,
|
|
sizeof ifl);
|
|
if (error)
|
|
return error;
|
|
svr4_to_bsd_flock(&ifl, &fl);
|
|
return fd_truncate(p, SCARG(uap, fd), &fl,
|
|
retval);
|
|
}
|
|
|
|
case SVR4_F_GETLK64:
|
|
case SVR4_F_SETLK64:
|
|
case SVR4_F_SETLKW64:
|
|
{
|
|
struct svr4_flock64 ifl;
|
|
struct flock *flp, fl;
|
|
caddr_t sg = stackgap_init(p->p_emul);
|
|
|
|
flp = stackgap_alloc(&sg, sizeof(struct flock));
|
|
SCARG(&fa, arg) = (void *) flp;
|
|
|
|
error = copyin(SCARG(uap, arg), &ifl,
|
|
sizeof ifl);
|
|
if (error)
|
|
return error;
|
|
|
|
svr4_to_bsd_flock64(&ifl, &fl);
|
|
|
|
error = copyout(&fl, flp, sizeof fl);
|
|
if (error)
|
|
return error;
|
|
|
|
error = sys_fcntl(p, &fa, retval);
|
|
if (error || SCARG(&fa, cmd) != F_GETLK)
|
|
return error;
|
|
|
|
error = copyin(flp, &fl, sizeof fl);
|
|
if (error)
|
|
return error;
|
|
|
|
bsd_to_svr4_flock64(&fl, &ifl);
|
|
|
|
return copyout(&ifl, SCARG(uap, arg),
|
|
sizeof ifl);
|
|
}
|
|
|
|
case SVR4_F_FREESP64:
|
|
{
|
|
struct svr4_flock64 ifl;
|
|
struct flock fl;
|
|
|
|
error = copyin(SCARG(uap, arg), &ifl,
|
|
sizeof ifl);
|
|
if (error)
|
|
return error;
|
|
svr4_to_bsd_flock64(&ifl, &fl);
|
|
return fd_truncate(p, SCARG(uap, fd), &fl,
|
|
retval);
|
|
}
|
|
|
|
case SVR4_F_REVOKE:
|
|
return fd_revoke(p, SCARG(uap, fd), retval);
|
|
|
|
default:
|
|
return ENOSYS;
|
|
}
|
|
|
|
default:
|
|
return ENOSYS;
|
|
}
|
|
}
|