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freebsd/sys/i386/ibcs2/ibcs2_stat.c
Steven Wallace 30f4c3423d Do a better fake for uname information returned in utssys() call. 
Currently, the emulator defaults to returning "FreeBSD" as the system
name, release "3.2", and version "2.0".  Some programs want to make
sure they are on a SYSV 3.2 system and check for 3.X release number.

Use the following defines to override the defaults:
	IBCS2_UNAME_SYSNAME
	IBCS2_UNAME_RELEASE
	IBCS2_UNAME_VERSION
(should be string)
for system name, release, and version, respectively.  This allows
someone to compile the emulator into the kernel so it can pretend
to be a specific system if needed.
1995-10-16 05:32:20 +00:00

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/*
* Copyright (c) 1995 Scott Bartram
* 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.
* 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/vnode.h>
#include <sys/sysctl.h>
#include <sys/sysproto.h>
#include <vm/vm.h>
#include <i386/ibcs2/ibcs2_types.h>
#include <i386/ibcs2/ibcs2_fcntl.h>
#include <i386/ibcs2/ibcs2_signal.h>
#include <i386/ibcs2/ibcs2_stat.h>
#include <i386/ibcs2/ibcs2_statfs.h>
#include <i386/ibcs2/ibcs2_proto.h>
#include <i386/ibcs2/ibcs2_ustat.h>
#include <i386/ibcs2/ibcs2_util.h>
#include <i386/ibcs2/ibcs2_utsname.h>
static void bsd_stat2ibcs_stat __P((struct stat *, struct ibcs2_stat *));
static int cvt_statfs __P((struct statfs *, caddr_t, int));
static void
bsd_stat2ibcs_stat(st, st4)
struct stat *st;
struct ibcs2_stat *st4;
{
bzero(st4, sizeof(*st4));
st4->st_dev = (ibcs2_dev_t)st->st_dev;
st4->st_ino = (ibcs2_ino_t)st->st_ino;
st4->st_mode = (ibcs2_mode_t)st->st_mode;
st4->st_nlink= (ibcs2_nlink_t)st->st_nlink;
st4->st_uid = (ibcs2_uid_t)st->st_uid;
st4->st_gid = (ibcs2_gid_t)st->st_gid;
st4->st_rdev = (ibcs2_dev_t)st->st_rdev;
if (st->st_size < (quad_t)1 << 32)
st4->st_size = (ibcs2_off_t)st->st_size;
else
st4->st_size = -2;
st4->st_atim = (ibcs2_time_t)st->st_atime;
st4->st_mtim = (ibcs2_time_t)st->st_mtime;
st4->st_ctim = (ibcs2_time_t)st->st_ctime;
}
static int
cvt_statfs(sp, buf, len)
struct statfs *sp;
caddr_t buf;
int len;
{
struct ibcs2_statfs ssfs;
bzero(&ssfs, sizeof ssfs);
ssfs.f_fstyp = 0;
ssfs.f_bsize = sp->f_bsize;
ssfs.f_frsize = 0;
ssfs.f_blocks = sp->f_blocks;
ssfs.f_bfree = sp->f_bfree;
ssfs.f_files = sp->f_files;
ssfs.f_ffree = sp->f_ffree;
ssfs.f_fname[0] = 0;
ssfs.f_fpack[0] = 0;
return copyout((caddr_t)&ssfs, buf, len);
}
int
ibcs2_statfs(p, uap, retval)
struct proc *p;
struct ibcs2_statfs_args *uap;
int *retval;
{
register struct mount *mp;
register struct statfs *sp;
int error;
struct nameidata nd;
caddr_t sg = stackgap_init();
CHECKALTEXIST(p, &sg, SCARG(uap, path));
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
if (error = namei(&nd))
return (error);
mp = nd.ni_vp->v_mount;
sp = &mp->mnt_stat;
vrele(nd.ni_vp);
if (error = VFS_STATFS(mp, sp, p))
return (error);
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
return cvt_statfs(sp, (caddr_t)SCARG(uap, buf), SCARG(uap, len));
}
int
ibcs2_fstatfs(p, uap, retval)
struct proc *p;
struct ibcs2_fstatfs_args *uap;
int *retval;
{
struct file *fp;
struct mount *mp;
register struct statfs *sp;
int error;
if (error = getvnode(p->p_fd, SCARG(uap, fd), &fp))
return (error);
mp = ((struct vnode *)fp->f_data)->v_mount;
sp = &mp->mnt_stat;
if (error = VFS_STATFS(mp, sp, p))
return (error);
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
return cvt_statfs(sp, (caddr_t)SCARG(uap, buf), SCARG(uap, len));
}
int
ibcs2_stat(p, uap, retval)
struct proc *p;
struct ibcs2_stat_args *uap;
int *retval;
{
struct stat st;
struct ibcs2_stat ibcs2_st;
struct stat_args cup;
int error;
caddr_t sg = stackgap_init();
CHECKALTEXIST(p, &sg, SCARG(uap, path));
SCARG(&cup, path) = SCARG(uap, path);
SCARG(&cup, ub) = stackgap_alloc(&sg, sizeof(st));
if (error = stat(p, &cup, retval))
return error;
if (error = copyin(SCARG(&cup, ub), &st, sizeof(st)))
return error;
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
ibcs2_stat_len);
}
int
ibcs2_lstat(p, uap, retval)
struct proc *p;
struct ibcs2_lstat_args *uap;
int *retval;
{
struct stat st;
struct ibcs2_stat ibcs2_st;
struct lstat_args cup;
int error;
caddr_t sg = stackgap_init();
CHECKALTEXIST(p, &sg, SCARG(uap, path));
SCARG(&cup, path) = SCARG(uap, path);
SCARG(&cup, ub) = stackgap_alloc(&sg, sizeof(st));
if (error = lstat(p, &cup, retval))
return error;
if (error = copyin(SCARG(&cup, ub), &st, sizeof(st)))
return error;
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
ibcs2_stat_len);
}
int
ibcs2_fstat(p, uap, retval)
struct proc *p;
struct ibcs2_fstat_args *uap;
int *retval;
{
struct stat st;
struct ibcs2_stat ibcs2_st;
struct fstat_args cup;
int error;
caddr_t sg = stackgap_init();
SCARG(&cup, fd) = SCARG(uap, fd);
SCARG(&cup, sb) = stackgap_alloc(&sg, sizeof(st));
if (error = fstat(p, &cup, retval))
return error;
if (error = copyin(SCARG(&cup, sb), &st, sizeof(st)))
return error;
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
ibcs2_stat_len);
}
int
ibcs2_utssys(p, uap, retval)
struct proc *p;
struct ibcs2_utssys_args *uap;
int *retval;
{
switch (SCARG(uap, flag)) {
case 0: /* uname(2) */
{
struct ibcs2_utsname sut;
bzero(&sut, ibcs2_utsname_len);
strncpy(sut.sysname, IBCS2_UNAME_SYSNAME, sizeof(sut.sysname));
strncpy(sut.release, IBCS2_UNAME_RELEASE, sizeof(sut.release));
strncpy(sut.version, IBCS2_UNAME_VERSION, sizeof(sut.version));
strncpy(sut.nodename, hostname, sizeof(sut.nodename));
strncpy(sut.machine, machine, sizeof(sut.machine));
sut.sysname[sizeof(sut.sysname)-1] = '\0';
sut.release[sizeof(sut.release)-1] = '\0';
sut.version[sizeof(sut.version)-1] = '\0';
sut.nodename[sizeof(sut.nodename)-1] = '\0';
sut.machine[sizeof(sut.machine)-1] = '\0';
DPRINTF(("IBCS2 uname: sys=%s rel=%s ver=%s node=%s mach=%s\n",
sut.sysname, sut.release, sut.version, sut.nodename,
sut.machine));
return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, a1),
ibcs2_utsname_len);
}
case 2: /* ustat(2) */
{
return ENOSYS; /* XXX - TODO */
}
default:
return ENOSYS;
}
}
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