e3669c3393
count is 0, wait for use count to drain before finishing the close. This is necessary in order for multiple processes to safely share file descriptor tables.
377 lines
10 KiB
C
377 lines
10 KiB
C
/* $NetBSD: ibcs2_stat.c,v 1.12 1999/05/05 20:01:03 thorpej Exp $ */
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/*
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* Copyright (c) 1995, 1998 Scott Bartram
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/filedesc.h>
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#include <sys/ioctl.h>
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#include <sys/kernel.h>
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#include <sys/mount.h>
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#include <sys/malloc.h>
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#include <sys/vnode.h>
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#include <sys/syscallargs.h>
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#include <vm/vm.h>
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#include <compat/ibcs2/ibcs2_types.h>
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#include <compat/ibcs2/ibcs2_fcntl.h>
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#include <compat/ibcs2/ibcs2_signal.h>
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#include <compat/ibcs2/ibcs2_stat.h>
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#include <compat/ibcs2/ibcs2_statfs.h>
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#include <compat/ibcs2/ibcs2_syscallargs.h>
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#include <compat/ibcs2/ibcs2_ustat.h>
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#include <compat/ibcs2/ibcs2_util.h>
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#include <compat/ibcs2/ibcs2_utsname.h>
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static void bsd_stat2ibcs_stat __P((struct stat *, struct ibcs2_stat *));
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static int cvt_statfs __P((struct statfs *, caddr_t, int));
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static int cvt_statvfs __P((struct statfs *, caddr_t, int));
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static void
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bsd_stat2ibcs_stat(st, st4)
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struct stat *st;
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struct ibcs2_stat *st4;
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{
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memset(st4, 0, sizeof(*st4));
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st4->st_dev = (ibcs2_dev_t)st->st_dev;
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st4->st_ino = (ibcs2_ino_t)st->st_ino;
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st4->st_mode = (ibcs2_mode_t)st->st_mode;
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if (st->st_nlink >= (1 << 15))
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st4->st_nlink = (1 << 15) - 1;
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else
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st4->st_nlink = (ibcs2_nlink_t)st->st_nlink;
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st4->st_uid = (ibcs2_uid_t)st->st_uid;
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st4->st_gid = (ibcs2_gid_t)st->st_gid;
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st4->st_rdev = (ibcs2_dev_t)st->st_rdev;
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st4->st_size = (ibcs2_off_t)st->st_size;
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st4->st_atim = (ibcs2_time_t)st->st_atime;
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st4->st_mtim = (ibcs2_time_t)st->st_mtime;
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st4->st_ctim = (ibcs2_time_t)st->st_ctime;
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}
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static int
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cvt_statfs(sp, buf, len)
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struct statfs *sp;
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caddr_t buf;
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int len;
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{
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struct ibcs2_statfs ssfs;
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memset(&ssfs, 0, sizeof ssfs);
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ssfs.f_fstyp = 0;
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ssfs.f_bsize = sp->f_bsize;
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ssfs.f_frsize = 0;
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ssfs.f_blocks = sp->f_blocks;
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ssfs.f_bfree = sp->f_bfree;
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ssfs.f_files = sp->f_files;
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ssfs.f_ffree = sp->f_ffree;
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ssfs.f_fname[0] = 0;
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ssfs.f_fpack[0] = 0;
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return copyout((caddr_t)&ssfs, buf, len);
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}
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static int
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cvt_statvfs(sp, buf, len)
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struct statfs *sp;
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caddr_t buf;
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int len;
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{
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struct ibcs2_statvfs ssvfs;
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memset(&ssvfs, 0, sizeof ssvfs);
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ssvfs.f_frsize = ssvfs.f_bsize = sp->f_bsize;
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ssvfs.f_blocks = sp->f_blocks;
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ssvfs.f_bfree = sp->f_bfree;
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ssvfs.f_bavail = sp->f_bavail;
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ssvfs.f_files = sp->f_files;
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ssvfs.f_ffree = sp->f_ffree;
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ssvfs.f_favail = sp->f_ffree;
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ssvfs.f_fsid = sp->f_fsid.val[0];
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strncpy(ssvfs.f_basetype, sp->f_fstypename, 15);
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ssvfs.f_flag = 0;
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ssvfs.f_namemax = PATH_MAX;
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ssvfs.f_fstr[0] = 0;
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return copyout((caddr_t)&ssvfs, buf, len);
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}
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int
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ibcs2_sys_statfs(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct ibcs2_sys_statfs_args /* {
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syscallarg(const char *) path;
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syscallarg(struct ibcs2_statfs *) buf;
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syscallarg(int) len;
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syscallarg(int) fstype;
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} */ *uap = v;
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register struct mount *mp;
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register struct statfs *sp;
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int error;
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struct nameidata nd;
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caddr_t sg = stackgap_init(p->p_emul);
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IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
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NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
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if ((error = namei(&nd)) != 0)
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return (error);
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mp = nd.ni_vp->v_mount;
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sp = &mp->mnt_stat;
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vrele(nd.ni_vp);
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if ((error = VFS_STATFS(mp, sp, p)) != 0)
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return (error);
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sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
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return cvt_statfs(sp, (caddr_t)SCARG(uap, buf), SCARG(uap, len));
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}
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int
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ibcs2_sys_fstatfs(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct ibcs2_sys_fstatfs_args /* {
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syscallarg(int) fd;
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syscallarg(struct ibcs2_statfs *) buf;
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syscallarg(int) len;
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syscallarg(int) fstype;
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} */ *uap = v;
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struct file *fp;
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struct mount *mp;
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register struct statfs *sp;
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int error;
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/* getvnode() will use the descriptor for us */
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if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
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return (error);
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mp = ((struct vnode *)fp->f_data)->v_mount;
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sp = &mp->mnt_stat;
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if ((error = VFS_STATFS(mp, sp, p)) != 0)
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goto out;
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sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
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error = cvt_statfs(sp, (caddr_t)SCARG(uap, buf), SCARG(uap, len));
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out:
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FILE_UNUSE(fp, p);
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return (error);
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}
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int
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ibcs2_sys_statvfs(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct ibcs2_sys_statvfs_args /* {
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syscallarg(const char *) path;
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syscallarg(struct ibcs2_statvfs *) buf;
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} */ *uap = v;
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register struct mount *mp;
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register struct statfs *sp;
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int error;
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struct nameidata nd;
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caddr_t sg = stackgap_init(p->p_emul);
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IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
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NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
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if ((error = namei(&nd)) != 0)
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return (error);
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mp = nd.ni_vp->v_mount;
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sp = &mp->mnt_stat;
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vrele(nd.ni_vp);
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if ((error = VFS_STATFS(mp, sp, p)) != 0)
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return (error);
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sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
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return cvt_statvfs(sp, (caddr_t)SCARG(uap, buf),
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sizeof(struct ibcs2_statvfs));
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}
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int
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ibcs2_sys_fstatvfs(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct ibcs2_sys_fstatvfs_args /* {
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syscallarg(int) fd;
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syscallarg(struct ibcs2_statvfs *) buf;
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} */ *uap = v;
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struct file *fp;
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struct mount *mp;
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register struct statfs *sp;
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int error;
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/* getvnode() will use the descriptor for us */
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if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
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return (error);
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mp = ((struct vnode *)fp->f_data)->v_mount;
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sp = &mp->mnt_stat;
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if ((error = VFS_STATFS(mp, sp, p)) != 0)
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goto out;
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sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
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error = cvt_statvfs(sp, (caddr_t)SCARG(uap, buf),
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sizeof(struct ibcs2_statvfs));
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out:
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FILE_UNUSE(fp, p);
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return (error);
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}
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int
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ibcs2_sys_stat(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct ibcs2_sys_stat_args /* {
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syscallarg(const char *) path;
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syscallarg(struct ibcs2_stat *) st;
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} */ *uap = v;
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struct stat st;
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struct ibcs2_stat ibcs2_st;
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struct sys___stat13_args cup;
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int error;
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caddr_t sg = stackgap_init(p->p_emul);
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IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
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SCARG(&cup, path) = SCARG(uap, path);
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SCARG(&cup, ub) = stackgap_alloc(&sg, sizeof(st));
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if ((error = sys___stat13(p, &cup, retval)) != 0)
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return error;
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if ((error = copyin(SCARG(&cup, ub), &st, sizeof(st))) != 0)
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return error;
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bsd_stat2ibcs_stat(&st, &ibcs2_st);
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return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
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ibcs2_stat_len);
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}
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int
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ibcs2_sys_lstat(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct ibcs2_sys_lstat_args /* {
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syscallarg(const char *) path;
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syscallarg(struct ibcs2_stat *) st;
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} */ *uap = v;
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struct stat st;
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struct ibcs2_stat ibcs2_st;
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struct sys___lstat13_args cup;
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int error;
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caddr_t sg = stackgap_init(p->p_emul);
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IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
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SCARG(&cup, path) = SCARG(uap, path);
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SCARG(&cup, ub) = stackgap_alloc(&sg, sizeof(st));
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if ((error = sys___lstat13(p, &cup, retval)) != 0)
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return error;
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if ((error = copyin(SCARG(&cup, ub), &st, sizeof(st))) != 0)
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return error;
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bsd_stat2ibcs_stat(&st, &ibcs2_st);
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return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
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ibcs2_stat_len);
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}
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int
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ibcs2_sys_fstat(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct ibcs2_sys_fstat_args /* {
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syscallarg(int) fd;
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syscallarg(struct ibcs2_stat *) st;
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} */ *uap = v;
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struct stat st;
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struct ibcs2_stat ibcs2_st;
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struct sys___fstat13_args cup;
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int error;
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caddr_t sg = stackgap_init(p->p_emul);
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SCARG(&cup, fd) = SCARG(uap, fd);
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SCARG(&cup, sb) = stackgap_alloc(&sg, sizeof(st));
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if ((error = sys___fstat13(p, &cup, retval)) != 0)
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return error;
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if ((error = copyin(SCARG(&cup, sb), &st, sizeof(st))) != 0)
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return error;
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bsd_stat2ibcs_stat(&st, &ibcs2_st);
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return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
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ibcs2_stat_len);
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}
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int
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ibcs2_sys_utssys(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct ibcs2_sys_utssys_args /* {
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syscallarg(int) a1;
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syscallarg(int) a2;
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syscallarg(int) flag;
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} */ *uap = v;
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switch (SCARG(uap, flag)) {
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case 0: /* uname(struct utsname *) */
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{
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struct ibcs2_utsname sut;
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extern char ostype[], machine[], osrelease[];
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memset(&sut, 0, ibcs2_utsname_len);
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memcpy(sut.sysname, ostype, sizeof(sut.sysname) - 1);
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memcpy(sut.nodename, hostname, sizeof(sut.nodename));
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sut.nodename[sizeof(sut.nodename)-1] = '\0';
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memcpy(sut.release, osrelease, sizeof(sut.release) - 1);
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memcpy(sut.version, "1", sizeof(sut.version) - 1);
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memcpy(sut.machine, machine, sizeof(sut.machine) - 1);
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return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, a1),
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ibcs2_utsname_len);
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}
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case 2: /* ustat(dev_t, struct ustat *) */
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{
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struct ibcs2_ustat xu;
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xu.f_tfree = 20000; /* XXX fixme */
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xu.f_tinode = 32000;
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xu.f_fname[0] = 0;
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xu.f_fpack[0] = 0;
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return copyout((caddr_t)&xu, (caddr_t)SCARG(uap, a2),
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ibcs2_ustat_len);
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}
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default:
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return ENOSYS;
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}
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}
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