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https://github.com/freebsd/freebsd-src
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30f4c3423d
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.
263 lines
7.1 KiB
C
263 lines
7.1 KiB
C
/*
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* Copyright (c) 1995 Scott Bartram
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* Copyright (c) 1995 Steven Wallace
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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/sysctl.h>
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#include <sys/sysproto.h>
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#include <vm/vm.h>
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#include <i386/ibcs2/ibcs2_types.h>
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#include <i386/ibcs2/ibcs2_fcntl.h>
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#include <i386/ibcs2/ibcs2_signal.h>
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#include <i386/ibcs2/ibcs2_stat.h>
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#include <i386/ibcs2/ibcs2_statfs.h>
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#include <i386/ibcs2/ibcs2_proto.h>
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#include <i386/ibcs2/ibcs2_ustat.h>
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#include <i386/ibcs2/ibcs2_util.h>
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#include <i386/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 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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bzero(st4, 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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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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if (st->st_size < (quad_t)1 << 32)
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st4->st_size = (ibcs2_off_t)st->st_size;
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else
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st4->st_size = -2;
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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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bzero(&ssfs, 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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int
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ibcs2_statfs(p, uap, retval)
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struct proc *p;
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struct ibcs2_statfs_args *uap;
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int *retval;
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{
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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();
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CHECKALTEXIST(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))
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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))
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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_fstatfs(p, uap, retval)
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struct proc *p;
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struct ibcs2_fstatfs_args *uap;
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int *retval;
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{
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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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if (error = getvnode(p->p_fd, SCARG(uap, fd), &fp))
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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))
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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_stat(p, uap, retval)
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struct proc *p;
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struct ibcs2_stat_args *uap;
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int *retval;
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{
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struct stat st;
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struct ibcs2_stat ibcs2_st;
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struct stat_args cup;
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int error;
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caddr_t sg = stackgap_init();
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CHECKALTEXIST(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 = stat(p, &cup, retval))
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return error;
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if (error = copyin(SCARG(&cup, ub), &st, sizeof(st)))
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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_lstat(p, uap, retval)
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struct proc *p;
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struct ibcs2_lstat_args *uap;
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int *retval;
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{
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struct stat st;
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struct ibcs2_stat ibcs2_st;
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struct lstat_args cup;
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int error;
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caddr_t sg = stackgap_init();
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CHECKALTEXIST(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 = lstat(p, &cup, retval))
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return error;
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if (error = copyin(SCARG(&cup, ub), &st, sizeof(st)))
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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_fstat(p, uap, retval)
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struct proc *p;
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struct ibcs2_fstat_args *uap;
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int *retval;
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{
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struct stat st;
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struct ibcs2_stat ibcs2_st;
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struct fstat_args cup;
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int error;
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caddr_t sg = stackgap_init();
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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 = fstat(p, &cup, retval))
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return error;
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if (error = copyin(SCARG(&cup, sb), &st, sizeof(st)))
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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_utssys(p, uap, retval)
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struct proc *p;
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struct ibcs2_utssys_args *uap;
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int *retval;
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{
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switch (SCARG(uap, flag)) {
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case 0: /* uname(2) */
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{
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struct ibcs2_utsname sut;
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bzero(&sut, ibcs2_utsname_len);
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strncpy(sut.sysname, IBCS2_UNAME_SYSNAME, sizeof(sut.sysname));
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strncpy(sut.release, IBCS2_UNAME_RELEASE, sizeof(sut.release));
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strncpy(sut.version, IBCS2_UNAME_VERSION, sizeof(sut.version));
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strncpy(sut.nodename, hostname, sizeof(sut.nodename));
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strncpy(sut.machine, machine, sizeof(sut.machine));
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sut.sysname[sizeof(sut.sysname)-1] = '\0';
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sut.release[sizeof(sut.release)-1] = '\0';
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sut.version[sizeof(sut.version)-1] = '\0';
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sut.nodename[sizeof(sut.nodename)-1] = '\0';
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sut.machine[sizeof(sut.machine)-1] = '\0';
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DPRINTF(("IBCS2 uname: sys=%s rel=%s ver=%s node=%s mach=%s\n",
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sut.sysname, sut.release, sut.version, sut.nodename,
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sut.machine));
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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(2) */
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{
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return ENOSYS; /* XXX - TODO */
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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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