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netbsd32_compat_12.c revision 1.16
      1 /*	$NetBSD: netbsd32_compat_12.c,v 1.16 2003/01/18 08:28:25 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998, 2001 Matthew R. Green
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_12.c,v 1.16 2003/01/18 08:28:25 thorpej Exp $");
     33 
     34 #if defined(_KERNEL_OPT)
     35 #include "opt_compat_netbsd.h"
     36 #endif
     37 
     38 #include <sys/param.h>
     39 #include <sys/systm.h>
     40 #include <sys/mount.h>
     41 #include <sys/mman.h>
     42 #include <sys/proc.h>
     43 #include <sys/stat.h>
     44 #include <sys/swap.h>
     45 #include <sys/sa.h>
     46 #include <sys/syscallargs.h>
     47 
     48 #include <compat/netbsd32/netbsd32.h>
     49 #include <compat/netbsd32/netbsd32_syscallargs.h>
     50 
     51 static void netbsd32_stat12_to_netbsd32 __P((struct stat12 *,
     52 		struct netbsd32_stat12 *));
     53 
     54 /* for use with {,fl}stat() */
     55 static void
     56 netbsd32_stat12_to_netbsd32(sp12, sp32)
     57 	struct stat12 *sp12;
     58 	struct netbsd32_stat12 *sp32;
     59 {
     60 
     61 	sp32->st_dev = sp12->st_dev;
     62 	sp32->st_ino = sp12->st_ino;
     63 	sp32->st_mode = sp12->st_mode;
     64 	sp32->st_nlink = sp12->st_nlink;
     65 	sp32->st_uid = sp12->st_uid;
     66 	sp32->st_gid = sp12->st_gid;
     67 	sp32->st_rdev = sp12->st_rdev;
     68 	if (sp12->st_size < (quad_t)1 << 32)
     69 		sp32->st_size = sp12->st_size;
     70 	else
     71 		sp32->st_size = -2;
     72 	sp32->st_atimespec.tv_sec = sp12->st_atimespec.tv_sec;
     73 	sp32->st_atimespec.tv_nsec = sp12->st_atimespec.tv_nsec;
     74 	sp32->st_mtimespec.tv_sec = sp12->st_mtimespec.tv_sec;
     75 	sp32->st_mtimespec.tv_nsec = sp12->st_mtimespec.tv_nsec;
     76 	sp32->st_ctimespec.tv_sec = sp12->st_ctimespec.tv_sec;
     77 	sp32->st_ctimespec.tv_nsec = sp12->st_ctimespec.tv_nsec;
     78 	sp32->st_blocks = sp12->st_blocks;
     79 	sp32->st_blksize = sp12->st_blksize;
     80 	sp32->st_flags = sp12->st_flags;
     81 	sp32->st_gen = sp12->st_gen;
     82 }
     83 
     84 int
     85 compat_12_netbsd32_reboot(l, v, retval)
     86 	struct lwp *l;
     87 	void *v;
     88 	register_t *retval;
     89 {
     90 	struct compat_12_netbsd32_reboot_args /* {
     91 		syscallarg(int) opt;
     92 	} */ *uap = v;
     93 	struct compat_12_sys_reboot_args ua;
     94 
     95 	NETBSD32TO64_UAP(opt);
     96 	return (compat_12_sys_reboot(l, &ua, retval));
     97 }
     98 
     99 int
    100 compat_12_netbsd32_msync(l, v, retval)
    101 	struct lwp *l;
    102 	void *v;
    103 	register_t *retval;
    104 {
    105 	struct compat_12_netbsd32_msync_args /* {
    106 		syscallarg(netbsd32_caddr_t) addr;
    107 		syscallarg(netbsd32_size_t) len;
    108 	} */ *uap = v;
    109 	struct sys___msync13_args ua;
    110 
    111 	NETBSD32TOX64_UAP(addr, caddr_t);
    112 	NETBSD32TOX_UAP(len, size_t);
    113 	SCARG(&ua, flags) = MS_SYNC | MS_INVALIDATE;
    114 	return (sys___msync13(l, &ua, retval));
    115 }
    116 
    117 int
    118 compat_12_netbsd32_oswapon(l, v, retval)
    119 	struct lwp *l;
    120 	void *v;
    121 	register_t *retval;
    122 {
    123 	struct compat_12_netbsd32_oswapon_args /* {
    124 		syscallarg(const netbsd32_charp) name;
    125 	} */ *uap = v;
    126 	struct sys_swapctl_args ua;
    127 
    128 	SCARG(&ua, cmd) = SWAP_ON;
    129 	SCARG(&ua, arg) = (void *)NETBSD32PTR64(SCARG(uap, name));
    130 	SCARG(&ua, misc) = 0;	/* priority */
    131 	return (sys_swapctl(l, &ua, retval));
    132 }
    133 
    134 int
    135 compat_12_netbsd32_stat12(l, v, retval)
    136 	struct lwp *l;
    137 	void *v;
    138 	register_t *retval;
    139 {
    140 	struct proc *p = l->l_proc;
    141 	struct compat_12_netbsd32_stat12_args /* {
    142 		syscallarg(const netbsd32_charp) path;
    143 		syscallarg(netbsd32_stat12p_t) ub;
    144 	} */ *uap = v;
    145 	struct netbsd32_stat12 *sp32, sb32;
    146 	struct stat12 sb12;
    147 	struct stat12 *sp12 = &sb12;
    148 	struct compat_12_sys_stat_args ua;
    149 	caddr_t sg;
    150 	int rv;
    151 
    152 	NETBSD32TOP_UAP(path, const char);
    153 	SCARG(&ua, ub) = &sb12;
    154 	sg = stackgap_init(p, 0);
    155 	CHECK_ALT_EXIST(p, &sg, SCARG(&ua, path));
    156 
    157 	rv = compat_12_sys_stat(l, &ua, retval);
    158 	if (rv)
    159 		return (rv);
    160 
    161 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, ub));
    162 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    163 
    164 	return (copyout(&sb32, sp32, sizeof sb32));
    165 }
    166 
    167 int
    168 compat_12_netbsd32_fstat12(l, v, retval)
    169 	struct lwp *l;
    170 	void *v;
    171 	register_t *retval;
    172 {
    173 	struct compat_12_netbsd32_fstat12_args /* {
    174 		syscallarg(int) fd;
    175 		syscallarg(netbsd32_stat12p_t) sb;
    176 	} */ *uap = v;
    177 	struct netbsd32_stat12 *sp32, sb32;
    178 	struct stat12 sb12;
    179 	struct stat12 *sp12 = &sb12;
    180 	struct compat_12_sys_fstat_args ua;
    181 	int rv;
    182 
    183 	NETBSD32TO64_UAP(fd);
    184 	SCARG(&ua, sb) = &sb12;
    185 	rv = compat_12_sys_fstat(l, &ua, retval);
    186 	if (rv)
    187 		return (rv);
    188 
    189 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, sb));
    190 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    191 
    192 	return (copyout(&sb32, sp32, sizeof sb32));
    193 }
    194 
    195 int
    196 compat_12_netbsd32_lstat12(l, v, retval)
    197 	struct lwp *l;
    198 	void *v;
    199 	register_t *retval;
    200 {
    201 	struct proc *p = l->l_proc;
    202 	struct compat_12_netbsd32_lstat12_args /* {
    203 		syscallarg(const netbsd32_charp) path;
    204 		syscallarg(netbsd32_stat12p_t) ub;
    205 	} */ *uap = v;
    206 	struct netbsd32_stat12 *sp32, sb32;
    207 	struct stat12 sb12;
    208 	struct stat12 *sp12 = &sb12;
    209 	struct compat_12_sys_lstat_args ua;
    210 	caddr_t sg;
    211 	int rv;
    212 
    213 	NETBSD32TOP_UAP(path, const char);
    214 	SCARG(&ua, ub) = &sb12;
    215 	sg = stackgap_init(p, 0);
    216 	CHECK_ALT_EXIST(p, &sg, SCARG(&ua, path));
    217 
    218 	rv = compat_12_sys_lstat(l, &ua, retval);
    219 	if (rv)
    220 		return (rv);
    221 
    222 	sp32 = (struct netbsd32_stat12 *)NETBSD32PTR64(SCARG(uap, ub));
    223 	netbsd32_stat12_to_netbsd32(sp12, &sb32);
    224 
    225 	return (copyout(&sb32, sp32, sizeof sb32));
    226 }
    227 
    228 int
    229 compat_12_netbsd32_getdirentries(l, v, retval)
    230 	struct lwp *l;
    231 	void *v;
    232 	register_t *retval;
    233 {
    234 	struct compat_12_netbsd32_getdirentries_args /* {
    235 		syscallarg(int) fd;
    236 		syscallarg(netbsd32_charp) buf;
    237 		syscallarg(u_int) count;
    238 		syscallarg(netbsd32_longp) basep;
    239 	} */ *uap = v;
    240 	struct compat_12_sys_getdirentries_args ua;
    241 
    242 	NETBSD32TO64_UAP(fd);
    243 	NETBSD32TOP_UAP(buf, char);
    244 	NETBSD32TO64_UAP(count);
    245 	NETBSD32TOP_UAP(basep, long);
    246 
    247 	return (compat_12_sys_getdirentries(l, &ua, retval));
    248 }
    249