Import of original NetBSD's ibcs2 emulator sources by Scott Bartram,

which is used as a basis for a more complete and cleaner ibcs2 emulator.
(snapshot about May 1995 with a few files from September 1995)

Some files and code from old emulator still remains.
New files, features, and changes have been implemented by myself,
which will be shown in following commits.

1 files changed, 244 insertions, 0 deletions

diff --git a/sys/i386/ibcs2/ibcs2_stat.c b/sys/i386/ibcs2/ibcs2_stat.c
new file mode 100644
index 0000000..a9d5c4b
--- /dev/null
+++ b/sys/i386/ibcs2/ibcs2_stat.c
@@ -0,0 +1,244 @@
+/*
+ * Copyright (c) 1995 Scott Bartram
+ * 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/syscallargs.h>
+
+#include <vm/vm.h>
+
+#include <compat/ibcs2/ibcs2_types.h>
+#include <compat/ibcs2/ibcs2_fcntl.h>
+#include <compat/ibcs2/ibcs2_signal.h>
+#include <compat/ibcs2/ibcs2_stat.h>
+#include <compat/ibcs2/ibcs2_statfs.h>
+#include <compat/ibcs2/ibcs2_syscallargs.h>
+#include <compat/ibcs2/ibcs2_ustat.h>
+#include <compat/ibcs2/ibcs2_util.h>
+#include <compat/ibcs2/ibcs2_utsname.h>
+
+
+static void
+bsd_stat2ibcs_stat(st, st4)
+	struct ostat *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;
+	st4->st_size = (ibcs2_off_t)st->st_size;
+	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 ostat st;
+	struct ibcs2_stat ibcs2_st;
+	struct compat_43_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 = compat_43_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 ostat st;
+	struct ibcs2_stat ibcs2_st;
+	struct compat_43_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 = compat_43_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 ostat st;
+	struct ibcs2_stat ibcs2_st;
+	struct compat_43_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 = compat_43_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;
+		extern char ostype[], machine[], osrelease[];
+
+		bzero(&sut, ibcs2_utsname_len);
+		bcopy(ostype, sut.sysname, sizeof(sut.sysname) - 1);
+		bcopy(hostname, sut.nodename, sizeof(sut.nodename));
+		sut.nodename[sizeof(sut.nodename)-1] = '\0';
+		bcopy(osrelease, sut.release, sizeof(sut.release) - 1);
+		bcopy("1", sut.version, sizeof(sut.version) - 1);
+		bcopy(machine, sut.machine, sizeof(sut.machine) - 1);
+
+		return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, a1),
+			       ibcs2_utsname_len);
+	}
+
+	case 2:			/* ustat(2) */
+	{
+		return ENOSYS;	/* XXX - TODO */
+	}
+
+	default:
+		return ENOSYS;
+	}
+}