NetBSD-5.0.2/sys/compat/ultrix/ultrix_pathname.c
/* $NetBSD: ultrix_pathname.c,v 1.35 2008/06/24 11:18:15 ad Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
*
* @(#)sun_misc.c 8.1 (Berkeley) 6/18/93
*
* from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp
*/
/*
* Ultrix emulation filesystem-namespace compatibility module.
*
* Ultrix system calls that examine the filesysten namespace
* are implemented here. Each system call has a wrapper that
* first checks if the given file exists at a special `emulation'
* pathname: the given path, prefixex with '/emul/ultrix', and
* if that pathname exists, it is used instead of the providd pathname.
*
* Used to locate OS-specific files (shared libraries, config files,
* etc) used by emul processes at their `normal' pathnames, without
* polluting, or conflicting with, the native filesysten namespace.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ultrix_pathname.c,v 1.35 2008/06/24 11:18:15 ad Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/vnode.h>
#include <sys/syscallargs.h>
#include <sys/proc.h>
#include <compat/ultrix/ultrix_syscallargs.h>
#include <compat/common/compat_util.h>
static int ultrixstatfs(struct statvfs *, void *);
int
ultrix_sys_creat(struct lwp *l, const struct ultrix_sys_creat_args *uap, register_t *retval)
{
struct sys_open_args ap;
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, flags) = O_WRONLY | O_CREAT | O_TRUNC;
SCARG(&ap, mode) = SCARG(uap, mode);
return sys_open(l, &ap, retval);
}
int
ultrix_sys_access(struct lwp *l, const struct ultrix_sys_access_args *uap, register_t *retval)
{
return sys_access(l, (const struct sys_access_args *)uap, retval);
}
int
ultrix_sys_stat(struct lwp *l, const struct ultrix_sys_stat_args *uap, register_t *retval)
{
return compat_43_sys_stat(l,
(const struct compat_43_sys_stat_args *)uap, retval);
}
int
ultrix_sys_lstat(struct lwp *l, const struct ultrix_sys_lstat_args *uap, register_t *retval)
{
return compat_43_sys_lstat(l,
(const struct compat_43_sys_lstat_args *)uap, retval);
}
int
ultrix_sys_execv(struct lwp *l, const struct ultrix_sys_execv_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(char **) argv;
} */
struct sys_execve_args ap;
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, argp) = SCARG(uap, argp);
SCARG(&ap, envp) = NULL;
return sys_execve(l, &ap, retval);
}
int
ultrix_sys_execve(struct lwp *l, const struct ultrix_sys_execve_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(char **) argv;
syscallarg(char **) envp;
} */
struct sys_execve_args ap;
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, argp) = SCARG(uap, argp);
SCARG(&ap, envp) = SCARG(uap, envp);
return sys_execve(l, &ap, retval);
}
int
ultrix_sys_open(struct lwp *l, const struct ultrix_sys_open_args *uap, register_t *retval)
{
struct proc *p = l->l_proc;
int q, r;
int noctty;
int ret;
struct sys_open_args ap;
/* convert open flags into NetBSD flags */
q = SCARG(uap, flags);
noctty = q & 0x8000;
r = (q & (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800));
r |= ((q & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0);
r |= ((q & 0x0080) ? O_SHLOCK : 0);
r |= ((q & 0x0100) ? O_EXLOCK : 0);
r |= ((q & 0x2000) ? O_FSYNC : 0);
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, flags) = r;
SCARG(&ap, mode) = SCARG(uap, mode);
ret = sys_open(l, &ap, retval);
/* XXXSMP */
if (!ret && !noctty && SESS_LEADER(p) && !(p->p_lflag & PL_CONTROLT)) {
file_t *fp;
int fd;
fd = (int)*retval;
fp = fd_getfile(fd);
/* ignore any error, just give it a try */
if (fp != NULL) {
if (fp->f_type == DTYPE_VNODE)
(fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, NULL);
fd_putfile(fd);
}
}
return ret;
}
struct ultrix_statfs {
long f_type; /* type of info, zero for now */
long f_bsize; /* fundamental file system block size */
long f_blocks; /* total blocks in file system */
long f_bfree; /* free blocks */
long f_bavail; /* free blocks available to non-super-user */
long f_files; /* total file nodes in file system */
long f_ffree; /* free file nodes in fs */
fsid_t f_fsid; /* file system id */
long f_spare[7]; /* spare for later */
};
/*
* Custruct ultrix statfs result from native.
* XXX should this be the same as returned by Ultrix getmnt(2)?
* XXX Ultrix predates DEV_BSIZE. Is conversion of disk space from 1k
* block units to DEV_BSIZE necessary?
*/
static int
ultrixstatfs(struct statvfs *sp, void *buf)
{
struct ultrix_statfs ssfs;
memset(&ssfs, 0, sizeof ssfs);
ssfs.f_type = 0;
ssfs.f_bsize = sp->f_bsize;
ssfs.f_blocks = sp->f_blocks;
ssfs.f_bfree = sp->f_bfree;
ssfs.f_bavail = sp->f_bavail;
ssfs.f_files = sp->f_files;
ssfs.f_ffree = sp->f_ffree;
ssfs.f_fsid = sp->f_fsidx;
return copyout((void *)&ssfs, buf, sizeof ssfs);
}
int
ultrix_sys_statfs(struct lwp *l, const struct ultrix_sys_statfs_args *uap, register_t *retval)
{
struct mount *mp;
struct statvfs *sp;
int error;
struct nameidata nd;
NDINIT(&nd, LOOKUP, FOLLOW | TRYEMULROOT, UIO_USERSPACE,
SCARG(uap, path));
if ((error = namei(&nd)) != 0)
return error;
mp = nd.ni_vp->v_mount;
sp = &mp->mnt_stat;
vrele(nd.ni_vp);
if ((error = VFS_STATVFS(mp, sp)) != 0)
return error;
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
return ultrixstatfs(sp, (void *)SCARG(uap, buf));
}
/*
* sys_fstatfs() takes an fd, not a path, and so needs no emul
* pathname processing; but it's similar enough to sys_statvfs() that
* it goes here anyway.
*/
int
ultrix_sys_fstatfs(struct lwp *l, const struct ultrix_sys_fstatfs_args *uap, register_t *retval)
{
file_t *fp;
struct mount *mp;
struct statvfs *sp;
int error;
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return error;
mp = ((struct vnode *)fp->f_data)->v_mount;
sp = &mp->mnt_stat;
if ((error = VFS_STATVFS(mp, sp)) != 0)
goto out;
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
error = ultrixstatfs(sp, (void *)SCARG(uap, buf));
out:
fd_putfile(SCARG(uap, fd));
return error;
}
int
ultrix_sys_mknod(struct lwp *l, const struct ultrix_sys_mknod_args *uap, register_t *retval)
{
if (S_ISFIFO(SCARG(uap, mode)))
return sys_mkfifo(l, (const struct sys_mkfifo_args *)uap,
retval);
return sys_mknod(l, (const struct sys_mknod_args *)uap, retval);
}