NetBSD/sys/compat/irix/irix_stat.c

/*	$NetBSD: irix_stat.c,v 1.24 2008/04/28 20:23:42 martin Exp $ */

/*-
 * Copyright (c) 2001, 2008 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Emmanuel Dreyfus.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: irix_stat.c,v 1.24 2008/04/28 20:23:42 martin Exp $");

#include <sys/errno.h>
#include <sys/types.h>
#include <sys/signal.h>
#include <sys/param.h>
#include <sys/filedesc.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/stdint.h>
#include <sys/stat.h>
#include <sys/systm.h>
#include <sys/syscallargs.h>
#include <sys/vfs_syscalls.h>

#include <compat/common/compat_util.h>

#include <compat/svr4/svr4_types.h>

#include <compat/irix/irix_types.h>
#include <compat/irix/irix_signal.h>
#include <compat/irix/irix_syscall.h>
#include <compat/irix/irix_syscallargs.h>

static void bsd_to_irix_stat(struct stat *, struct irix_stat *);
static void bsd_to_irix_stat64(struct stat *, struct irix_stat64 *);

static void
bsd_to_irix_stat(struct stat *bsp, struct irix_stat *isp)
{
	memset(isp, 0, sizeof(*isp));
	isp->ist_dev = (irix_dev_t)bsd_to_svr4_dev_t(bsp->st_dev);
	isp->ist_ino = bsp->st_ino;
	isp->ist_mode = bsp->st_mode;	/* XXX translate it */
	isp->ist_nlink = bsp->st_nlink;
	isp->ist_uid = bsp->st_uid;
	isp->ist_gid = bsp->st_gid;
	if ((bsp->st_mode & S_IFMT) == S_IFBLK ||
	    (bsp->st_mode & S_IFMT) == S_IFCHR)
		isp->ist_rdev = (irix_dev_t)bsd_to_svr4_dev_t(bsp->st_rdev);
	else
		isp->ist_rdev = 0;
	isp->ist_size = bsp->st_size;
	isp->ist_atim.tv_sec = bsp->st_atimespec.tv_sec;
	isp->ist_atim.tv_nsec = bsp->st_atimespec.tv_nsec;
	isp->ist_mtim.tv_sec = bsp->st_mtimespec.tv_sec;
	isp->ist_mtim.tv_nsec = bsp->st_mtimespec.tv_nsec;
	isp->ist_ctim.tv_sec = bsp->st_ctimespec.tv_sec;
	isp->ist_ctim.tv_nsec = bsp->st_ctimespec.tv_nsec;
	isp->ist_size = bsp->st_size;
	isp->ist_blocks = bsp->st_blocks;
	isp->ist_blksize = bsp->st_blksize;
	strlcpy(isp->ist_fstype, "unknown", sizeof(isp->ist_fstype));

	return;
}

static void
bsd_to_irix_stat64(struct stat *bsp, struct irix_stat64 *isp)
{
	memset(isp, 0, sizeof(*isp));
	isp->ist_dev = (irix_dev_t)bsd_to_svr4_dev_t(bsp->st_dev);
	isp->ist_ino = bsp->st_ino;
	isp->ist_mode = bsp->st_mode;	/* XXX translate it */
	isp->ist_nlink = bsp->st_nlink;
	isp->ist_uid = bsp->st_uid;
	isp->ist_gid = bsp->st_gid;
	if ((bsp->st_mode & S_IFMT) == S_IFBLK ||
	    (bsp->st_mode & S_IFMT) == S_IFCHR)
		isp->ist_rdev = (irix_dev_t)bsd_to_svr4_dev_t(bsp->st_rdev);
	else
		isp->ist_rdev = 0;
	isp->ist_size = bsp->st_size;
	isp->ist_atim.tv_sec = bsp->st_atimespec.tv_sec;
	isp->ist_atim.tv_nsec = bsp->st_atimespec.tv_nsec;
	isp->ist_mtim.tv_sec = bsp->st_mtimespec.tv_sec;
	isp->ist_mtim.tv_nsec = bsp->st_mtimespec.tv_nsec;
	isp->ist_ctim.tv_sec = bsp->st_ctimespec.tv_sec;
	isp->ist_ctim.tv_nsec = bsp->st_ctimespec.tv_nsec;
	isp->ist_size = bsp->st_size;
	isp->ist_blocks = bsp->st_blocks;
	isp->ist_blksize = bsp->st_blksize;
	strlcpy(isp->ist_fstype, "unknown", sizeof(isp->ist_fstype));

	return;
}

static int
convert_irix_stat(struct stat *st, void *buf, int stat_version)
{
	switch (stat_version) {
	case IRIX__STAT_VER: {
		struct irix_stat ist;

		bsd_to_irix_stat(st, &ist);
		return copyout(&ist, buf, sizeof (ist));
	}
	case IRIX__STAT64_VER: {
		struct irix_stat64 ist;

		bsd_to_irix_stat64(st, &ist);
		return copyout(&ist, buf, sizeof (ist));
	}
	case IRIX__R3_STAT_VER:
	default:
		printf("Warning: unimplemented irix_sys_?stat() version %d\n",
		    stat_version);
		return EINVAL;
	}
}

int
irix_sys_xstat(struct lwp *l, const struct irix_sys_xstat_args *uap, register_t *retval)
{
	/* {
		syscallarg(const int) version;
		syscallarg(const char *) path;
		syscallarg(struct stat *) buf;
	} */
	struct stat st;
	int error;

	error = do_sys_stat(SCARG(uap, path), FOLLOW, &st);
	if (error != 0)
		return error;

	return convert_irix_stat(&st, SCARG(uap, buf), SCARG(uap, version));
}

int
irix_sys_lxstat(struct lwp *l, const struct irix_sys_lxstat_args *uap, register_t *retval)
{
	/* {
		syscallarg(const int) version;
		syscallarg(const char *) path;
		syscallarg(struct stat *) buf;
	} */
	struct stat st;
	int error;

	error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &st);
	if (error != 0)
		return error;
	return convert_irix_stat(&st, SCARG(uap, buf), SCARG(uap, version));
}

int
irix_sys_fxstat(struct lwp *l, const struct irix_sys_fxstat_args *uap, register_t *retval)
{
	/* {
		syscallarg(const int) version;
		syscallarg(const int) fd;
		syscallarg(struct stat *) buf;
	} */
	struct stat st;
	int error;

	error = do_sys_fstat(SCARG(uap, fd), &st);
	if (error != 0)
		return error;
	return convert_irix_stat(&st, SCARG(uap, buf), SCARG(uap, version));
}