FreeBSD-5.3/sys/i386/ibcs2/ibcs2_xenix.c
/*-
* Copyright (c) 1994 Sean Eric Fagan
* Copyright (c) 1994 Søren Schmidt
* Copyright (c) 1995 Steven Wallace
* 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
* in this position and unchanged.
* 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/cdefs.h>
__FBSDID("$FreeBSD: src/sys/i386/ibcs2/ibcs2_xenix.c,v 1.33 2003/06/02 06:48:51 obrien Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/sysproto.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/filio.h>
#include <sys/vnode.h>
#include <sys/sysctl.h>
#include <machine/cpu.h>
#include <i386/ibcs2/ibcs2_types.h>
#include <i386/ibcs2/ibcs2_unistd.h>
#include <i386/ibcs2/ibcs2_signal.h>
#include <i386/ibcs2/ibcs2_util.h>
#include <i386/ibcs2/ibcs2_proto.h>
#include <i386/ibcs2/ibcs2_xenix.h>
#include <i386/ibcs2/ibcs2_xenix_syscall.h>
extern struct sysent xenix_sysent[];
int
ibcs2_xenix(struct thread *td, struct ibcs2_xenix_args *uap)
{
struct trapframe *tf = td->td_frame;
struct sysent *callp;
u_int code;
code = (tf->tf_eax & 0xff00) >> 8;
callp = &xenix_sysent[code];
if(code < IBCS2_XENIX_MAXSYSCALL)
return((*callp->sy_call)(td, (void *)uap));
else
return ENOSYS;
}
int
xenix_rdchk(td, uap)
struct thread *td;
struct xenix_rdchk_args *uap;
{
int error;
struct ioctl_args sa;
caddr_t sg = stackgap_init();
DPRINTF(("IBCS2: 'xenix rdchk'\n"));
sa.fd = uap->fd;
sa.com = FIONREAD;
sa.data = stackgap_alloc(&sg, sizeof(int));
if ((error = ioctl(td, &sa)) != 0)
return error;
td->td_retval[0] = (*((int*)sa.data)) ? 1 : 0;
return 0;
}
int
xenix_chsize(td, uap)
struct thread *td;
struct xenix_chsize_args *uap;
{
struct ftruncate_args sa;
DPRINTF(("IBCS2: 'xenix chsize'\n"));
sa.fd = uap->fd;
sa.pad = 0;
sa.length = uap->size;
return ftruncate(td, &sa);
}
int
xenix_ftime(td, uap)
struct thread *td;
struct xenix_ftime_args *uap;
{
struct timeval tv;
struct ibcs2_timeb {
unsigned long time __packed;
unsigned short millitm;
short timezone;
short dstflag;
} itb;
DPRINTF(("IBCS2: 'xenix ftime'\n"));
microtime(&tv);
itb.time = tv.tv_sec;
itb.millitm = (tv.tv_usec / 1000);
itb.timezone = tz_minuteswest;
itb.dstflag = tz_dsttime != DST_NONE;
return copyout((caddr_t)&itb, (caddr_t)uap->tp,
sizeof(struct ibcs2_timeb));
}
int
xenix_nap(struct thread *td, struct xenix_nap_args *uap)
{
long period;
DPRINTF(("IBCS2: 'xenix nap %d ms'\n", uap->millisec));
period = (long)uap->millisec / (1000/hz);
if (period)
while (tsleep(&period, PPAUSE, "nap", period)
!= EWOULDBLOCK) ;
return 0;
}
int
xenix_utsname(struct thread *td, struct xenix_utsname_args *uap)
{
struct ibcs2_sco_utsname {
char sysname[9];
char nodename[9];
char release[16];
char kernelid[20];
char machine[9];
char bustype[9];
char sysserial[10];
unsigned short sysorigin;
unsigned short sysoem;
char numusers[9];
unsigned short numcpu;
} ibcs2_sco_uname;
DPRINTF(("IBCS2: 'xenix sco_utsname'\n"));
bzero(&ibcs2_sco_uname, sizeof(struct ibcs2_sco_utsname));
strncpy(ibcs2_sco_uname.sysname, ostype,
sizeof(ibcs2_sco_uname.sysname) - 1);
getcredhostname(td->td_ucred, ibcs2_sco_uname.nodename,
sizeof(ibcs2_sco_uname.nodename) - 1);
strncpy(ibcs2_sco_uname.release, osrelease,
sizeof(ibcs2_sco_uname.release) - 1);
strncpy(ibcs2_sco_uname.kernelid, version,
sizeof(ibcs2_sco_uname.kernelid) - 1);
strncpy(ibcs2_sco_uname.machine, machine,
sizeof(ibcs2_sco_uname.machine) - 1);
strncpy(ibcs2_sco_uname.bustype, "ISA/EISA",
sizeof(ibcs2_sco_uname.bustype) - 1);
strncpy(ibcs2_sco_uname.sysserial, "no charge",
sizeof(ibcs2_sco_uname.sysserial) - 1);
strncpy(ibcs2_sco_uname.numusers, "unlim",
sizeof(ibcs2_sco_uname.numusers) - 1);
ibcs2_sco_uname.sysorigin = 0xFFFF;
ibcs2_sco_uname.sysoem = 0xFFFF;
ibcs2_sco_uname.numcpu = 1;
return copyout((caddr_t)&ibcs2_sco_uname,
(caddr_t)(void *)(intptr_t)uap->addr,
sizeof(struct ibcs2_sco_utsname));
}
int
xenix_scoinfo(struct thread *td, struct xenix_scoinfo_args *uap)
{
/* scoinfo (not documented) */
td->td_retval[0] = 0;
return 0;
}
int
xenix_eaccess(struct thread *td, struct xenix_eaccess_args *uap)
{
struct ucred *cred = td->td_ucred;
struct vnode *vp;
struct nameidata nd;
int error, flags;
caddr_t sg = stackgap_init();
CHECKALTEXIST(td, &sg, uap->path);
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE,
uap->path, td);
if ((error = namei(&nd)) != 0)
return error;
vp = nd.ni_vp;
/* Flags == 0 means only check for existence. */
if (uap->flags) {
flags = 0;
if (uap->flags & IBCS2_R_OK)
flags |= VREAD;
if (uap->flags & IBCS2_W_OK)
flags |= VWRITE;
if (uap->flags & IBCS2_X_OK)
flags |= VEXEC;
if ((flags & VWRITE) == 0 || (error = vn_writechk(vp)) == 0)
error = VOP_ACCESS(vp, flags, cred, td);
}
NDFREE(&nd, NDF_ONLY_PNBUF);
vput(vp);
return error;
}