sys/compat/darwin/darwin_stat.c

   1 /*      $NetBSD: darwin_stat.c,v 1.15 2009/01/11 02:45:47 christos Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2003, 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Emmanuel Dreyfus.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: darwin_stat.c,v 1.15 2009/01/11 02:45:47 christos Exp $");
  34
  35 #include <sys/types.h>
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/filedesc.h>
  39 #include <sys/mount.h>
  40 #include <sys/namei.h>
  41 #include <sys/proc.h>
  42 #include <sys/stat.h>
  43 #include <sys/syscallargs.h>
  44 #include <sys/vfs_syscalls.h>
  45
  46 #include <compat/sys/signal.h>
  47 #include <compat/sys/stat.h>
  48
  49 #include <compat/common/compat_util.h>
  50
  51 #include <compat/mach/mach_types.h>
  52 #include <compat/mach/mach_vm.h>
  53
  54 #include <compat/darwin/darwin_types.h>
  55 #include <compat/darwin/darwin_audit.h>
  56 #include <compat/darwin/darwin_syscallargs.h>
  57
  58 int
  59 darwin_sys_stat(struct lwp *l, const struct darwin_sys_stat_args *uap, register_t *retval)
  60 {
  61         /* {
  62                 syscallarg(char *) path;
  63                 syscallarg(struct stat12 *) ub;
  64         } */
  65         struct stat12 sb12;
  66         struct stat sb;
  67         int error;
  68
  69         error = do_sys_stat(SCARG(uap, path), FOLLOW, &sb);
  70         if (error != 0)
  71                 return error;
  72
  73         compat_12_stat_conv(&sb, &sb12);
  74         sb12.st_dev = native_to_darwin_dev(sb12.st_dev);
  75         sb12.st_rdev = native_to_darwin_dev(sb12.st_rdev);
  76
  77         return copyout(&sb12, SCARG(uap, ub), sizeof(sb12));
  78 }
  79
  80 int
  81 darwin_sys_fstat(struct lwp *l, const struct darwin_sys_fstat_args *uap, register_t *retval)
  82 {
  83         /* {
  84                 syscallarg(int) fd;
  85                 syscallarg(struct stat12 *) sb;
  86         } */
  87         struct stat12 sb12;
  88         struct stat sb;
  89         int error;
  90
  91         error = do_sys_fstat(SCARG(uap, fd), &sb);
  92         if (error != 0)
  93                 return error;
  94
  95         compat_12_stat_conv(&sb, &sb12);
  96         sb12.st_dev = native_to_darwin_dev(sb12.st_dev);
  97         sb12.st_rdev = native_to_darwin_dev(sb12.st_rdev);
  98
  99         return copyout(&sb12, SCARG(uap, sb), sizeof(sb12));
 100 }
 101
 102 int
 103 darwin_sys_lstat(struct lwp *l, const struct darwin_sys_lstat_args *uap, register_t *retval)
 104 {
 105         /* {
 106                 syscallarg(char *) path;
 107                 syscallarg(struct stat12 *) ub;
 108         } */
 109         struct stat12 sb12;
 110         struct stat sb;
 111         int error;
 112
 113         error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &sb);
 114         if (error != 0)
 115                 return error;
 116
 117         compat_12_stat_conv(&sb, &sb12);
 118         sb12.st_dev = native_to_darwin_dev(sb12.st_dev);
 119         sb12.st_rdev = native_to_darwin_dev(sb12.st_rdev);
 120
 121         return copyout(&sb12, SCARG(uap, ub), sizeof(sb12));
 122 }
 123
 124 int
 125 darwin_sys_mknod(struct lwp *l, const struct darwin_sys_mknod_args *uap, register_t *retval)
 126 {
 127         /* {
 128                 syscallarg(char) path;
 129                 syscallarg(mode_t) mode;
 130                 syscallarg(darwin_dev_t) dev:
 131         } */
 132
 133         return do_sys_mknod(l, SCARG(uap, path), SCARG(uap, mode),
 134             darwin_to_native_dev(SCARG(uap, dev)), retval, UIO_USERSPACE);
 135 }