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9e03db613c
freebsd/sys/i386/ibcs2/ibcs2_fcntl.c
Steven Wallace 9e03db613c Remove old files no longer needed. 
Add new files created for emulator.
Modify NetBSD import to work with FreeBSD and add new features and
code.  The complete emulator is essentially a combination of work/code
implemented by Sean Eric Fagan, Soren Schmidt, Scott Bartram, and myself,
Steven Wallace.

Features of this new emulator system include:

 o  "clean" code, including strict prototyping.
 o  Auto-generation of ibcs2 system calls, xenix system calls, isc system
calls.  Generation includes system tables, structure definitions,
and prototyping of function calls.
 o  ibcs2 emulator does not rely on any COMPAT_43 system calls.
 o  embedded socksys support
 o  ibcs2 msgsys, semsys, shmsys calls supported if supported in kernel
 o  alternate /emul/ibcs2 namespace searched first for files in ibcs2
system.  Usefull to keep sysv libraries, binaries in /emul/ibcs2.
 o  many other finer details and functions fixed or implemented.
1995-10-10 07:59:30 +00:00

325 lines
8.8 KiB
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/*
* Copyright (c) 1995 Scott Bartram
* 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. 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.
*/
#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/sysproto.h>
#include <i386/ibcs2/ibcs2_types.h>
#include <i386/ibcs2/ibcs2_fcntl.h>
#include <i386/ibcs2/ibcs2_signal.h>
#include <i386/ibcs2/ibcs2_proto.h>
#include <i386/ibcs2/ibcs2_util.h>
static void cvt_iflock2flock __P((struct ibcs2_flock *, struct flock *));
static void cvt_flock2iflock __P((struct flock *, struct ibcs2_flock *));
static int cvt_o_flags __P((int));
static int oflags2ioflags __P((int));
static int ioflags2oflags __P((int));
static int
cvt_o_flags(flags)
int flags;
{
int r = 0;
/* convert mode into NetBSD mode */
if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
if (flags & IBCS2_O_RDWR) r |= O_RDWR;
if (flags & (IBCS2_O_NDELAY | IBCS2_O_NONBLOCK)) r |= O_NONBLOCK;
if (flags & IBCS2_O_APPEND) r |= O_APPEND;
if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
if (flags & IBCS2_O_CREAT) r |= O_CREAT;
if (flags & IBCS2_O_TRUNC) r |= O_TRUNC /* | O_CREAT ??? */;
if (flags & IBCS2_O_EXCL) r |= O_EXCL;
if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
if (flags & IBCS2_O_PRIV) r |= O_EXLOCK;
if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
return r;
}
static void
cvt_flock2iflock(flp, iflp)
struct flock *flp;
struct ibcs2_flock *iflp;
{
switch (flp->l_type) {
case F_RDLCK:
iflp->l_type = IBCS2_F_RDLCK;
break;
case F_WRLCK:
iflp->l_type = IBCS2_F_WRLCK;
break;
case F_UNLCK:
iflp->l_type = IBCS2_F_UNLCK;
break;
}
iflp->l_whence = (short)flp->l_whence;
iflp->l_start = (ibcs2_off_t)flp->l_start;
iflp->l_len = (ibcs2_off_t)flp->l_len;
iflp->l_sysid = 0;
iflp->l_pid = (ibcs2_pid_t)flp->l_pid;
}
#ifdef DEBUG_IBCS2
static void
print_flock(struct flock *flp)
{
printf("flock: start=%x len=%x pid=%d type=%d whence=%d\n",
(int)flp->l_start, (int)flp->l_len, (int)flp->l_pid,
flp->l_type, flp->l_whence);
}
#endif
static void
cvt_iflock2flock(iflp, flp)
struct ibcs2_flock *iflp;
struct flock *flp;
{
flp->l_start = (off_t)iflp->l_start;
flp->l_len = (off_t)iflp->l_len;
flp->l_pid = (pid_t)iflp->l_pid;
switch (iflp->l_type) {
case IBCS2_F_RDLCK:
flp->l_type = F_RDLCK;
break;
case IBCS2_F_WRLCK:
flp->l_type = F_WRLCK;
break;
case IBCS2_F_UNLCK:
flp->l_type = F_UNLCK;
break;
}
flp->l_whence = iflp->l_whence;
}
/* convert iBCS2 mode into NetBSD mode */
static int
ioflags2oflags(flags)
int flags;
{
int r = 0;
if (flags & IBCS2_O_RDONLY) r |= O_RDONLY;
if (flags & IBCS2_O_WRONLY) r |= O_WRONLY;
if (flags & IBCS2_O_RDWR) r |= O_RDWR;
if (flags & IBCS2_O_NDELAY) r |= O_NONBLOCK;
if (flags & IBCS2_O_APPEND) r |= O_APPEND;
if (flags & IBCS2_O_SYNC) r |= O_FSYNC;
if (flags & IBCS2_O_NONBLOCK) r |= O_NONBLOCK;
if (flags & IBCS2_O_CREAT) r |= O_CREAT;
if (flags & IBCS2_O_TRUNC) r |= O_TRUNC;
if (flags & IBCS2_O_EXCL) r |= O_EXCL;
if (flags & IBCS2_O_NOCTTY) r |= O_NOCTTY;
return r;
}
/* convert NetBSD mode into iBCS2 mode */
static int
oflags2ioflags(flags)
int flags;
{
int r = 0;
if (flags & O_RDONLY) r |= IBCS2_O_RDONLY;
if (flags & O_WRONLY) r |= IBCS2_O_WRONLY;
if (flags & O_RDWR) r |= IBCS2_O_RDWR;
if (flags & O_NDELAY) r |= IBCS2_O_NONBLOCK;
if (flags & O_APPEND) r |= IBCS2_O_APPEND;
if (flags & O_FSYNC) r |= IBCS2_O_SYNC;
if (flags & O_NONBLOCK) r |= IBCS2_O_NONBLOCK;
if (flags & O_CREAT) r |= IBCS2_O_CREAT;
if (flags & O_TRUNC) r |= IBCS2_O_TRUNC;
if (flags & O_EXCL) r |= IBCS2_O_EXCL;
if (flags & O_NOCTTY) r |= IBCS2_O_NOCTTY;
return r;
}
int
ibcs2_open(p, uap, retval)
struct proc *p;
struct ibcs2_open_args *uap;
int *retval;
{
int noctty = SCARG(uap, flags) & IBCS2_O_NOCTTY;
int ret;
caddr_t sg = stackgap_init();
SCARG(uap, flags) = cvt_o_flags(SCARG(uap, flags));
if (SCARG(uap, flags) & O_CREAT)
CHECKALTCREAT(p, &sg, SCARG(uap, path));
else
CHECKALTEXIST(p, &sg, SCARG(uap, path));
ret = open(p, (struct open_args *)uap, retval);
if (!ret && !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 ret;
}
int
ibcs2_creat(p, uap, retval)
struct proc *p;
struct ibcs2_creat_args *uap;
int *retval;
{
struct open_args cup;
caddr_t sg = stackgap_init();
CHECKALTCREAT(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 open(p, &cup, retval);
}
int
ibcs2_access(p, uap, retval)
struct proc *p;
struct ibcs2_access_args *uap;
int *retval;
{
struct access_args cup;
caddr_t sg = stackgap_init();
CHECKALTEXIST(p, &sg, SCARG(uap, path));
SCARG(&cup, path) = SCARG(uap, path);
SCARG(&cup, flags) = SCARG(uap, flags);
return access(p, &cup, retval);
}
int
ibcs2_fcntl(p, uap, retval)
struct proc *p;
struct ibcs2_fcntl_args *uap;
int *retval;
{
int error;
struct fcntl_args fa;
struct flock *flp;
struct ibcs2_flock ifl;
switch(SCARG(uap, cmd)) {
case IBCS2_F_DUPFD:
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = F_DUPFD;
SCARG(&fa, arg) = SCARG(uap, arg);
return fcntl(p, &fa, retval);
case IBCS2_F_GETFD:
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = F_GETFD;
SCARG(&fa, arg) = SCARG(uap, arg);
return fcntl(p, &fa, retval);
case IBCS2_F_SETFD:
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = F_SETFD;
SCARG(&fa, arg) = SCARG(uap, arg);
return fcntl(p, &fa, retval);
case IBCS2_F_GETFL:
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = F_GETFL;
SCARG(&fa, arg) = SCARG(uap, arg);
error = fcntl(p, &fa, retval);
if (error)
return error;
*retval = oflags2ioflags(*retval);
return error;
case IBCS2_F_SETFL:
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = F_SETFL;
SCARG(&fa, arg) = (void *)ioflags2oflags((int)SCARG(uap, arg));
return fcntl(p, &fa, retval);
case IBCS2_F_GETLK:
{
caddr_t sg = stackgap_init();
flp = stackgap_alloc(&sg, sizeof(*flp));
error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
ibcs2_flock_len);
if (error)
return error;
cvt_iflock2flock(&ifl, flp);
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = F_GETLK;
SCARG(&fa, arg) = (void *)flp;
error = fcntl(p, &fa, retval);
if (error)
return error;
cvt_flock2iflock(flp, &ifl);
return copyout((caddr_t)&ifl, (caddr_t)SCARG(uap, arg),
ibcs2_flock_len);
}
case IBCS2_F_SETLK:
{
caddr_t sg = stackgap_init();
flp = stackgap_alloc(&sg, sizeof(*flp));
error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
ibcs2_flock_len);
if (error)
return error;
cvt_iflock2flock(&ifl, flp);
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = F_SETLK;
SCARG(&fa, arg) = (void *)flp;
return fcntl(p, &fa, retval);
}
case IBCS2_F_SETLKW:
{
caddr_t sg = stackgap_init();
flp = stackgap_alloc(&sg, sizeof(*flp));
error = copyin((caddr_t)SCARG(uap, arg), (caddr_t)&ifl,
ibcs2_flock_len);
if (error)
return error;
cvt_iflock2flock(&ifl, flp);
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = F_SETLKW;
SCARG(&fa, arg) = (void *)flp;
return fcntl(p, &fa, retval);
}
}
return ENOSYS;
}
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