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Add stat/lstat/fstat syscalls.

This commit is contained in:
njoly 2009-06-04 17:59:30 +00:00
parent 432691963c
commit 33fdfb68ef
2 changed files with 94 additions and 6 deletions
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11
sys/compat/linux32/arch/amd64/syscalls.master
View File

@ -1,4 +1,4 @@
$NetBSD: syscalls.master,v 1.51 2009/06/02 16:54:39 njoly Exp $
$NetBSD: syscalls.master,v 1.52 2009/06/04 17:59:30 njoly Exp $
; NetBSD i386 COMPAT_LINUX32 system call name/number "master" file.
; (See syscalls.conf to see what it is processed into.)
@ -204,9 +204,12 @@
netbsd32_itimerval50p_t itv, netbsd32_itimerval50p_t oitv); }
105 NOARGS { int|compat_50_netbsd32||getitimer(int which, \
netbsd32_itimerval50p_t itv); }
106 UNIMPL stat
107 UNIMPL lstat
108 UNIMPL fstat
106 STD { int|linux32_sys||stat(netbsd32_charp path, \
linux32_statp sp); }
107 STD { int|linux32_sys||lstat(netbsd32_charp path, \
linux32_statp sp); }
108 STD { int|linux32_sys||fstat(int fd, \
linux32_statp sp); }
109 STD { int|linux32_sys||olduname(linux32_oldutsnamep_t up); }
110 UNIMPL iopl
111 UNIMPL vhangup

89
sys/compat/linux32/common/linux32_stat.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: linux32_stat.c,v 1.15 2009/06/03 15:13:26 njoly Exp $ */
/* $NetBSD: linux32_stat.c,v 1.16 2009/06/04 17:59:30 njoly Exp $ */
/*-
* Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
@ -33,7 +33,7 @@
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: linux32_stat.c,v 1.15 2009/06/03 15:13:26 njoly Exp $");
__KERNEL_RCSID(0, "$NetBSD: linux32_stat.c,v 1.16 2009/06/04 17:59:30 njoly Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -74,10 +74,38 @@ __KERNEL_RCSID(0, "$NetBSD: linux32_stat.c,v 1.15 2009/06/03 15:13:26 njoly Exp
#include <compat/linux32/common/linux32_socketcall.h>
#include <compat/linux32/linux32_syscallargs.h>
static inline void bsd_to_linux32_stat(struct stat *, struct linux32_stat *);
static inline void bsd_to_linux32_stat64(struct stat *, struct linux32_stat64 *);
#define linux_fakedev(x,y) (x)
static inline void
bsd_to_linux32_stat(struct stat *st, struct linux32_stat *st32)
{
memset(st32, 0, sizeof(*st32));
st32->lst_dev = linux_fakedev(st->st_dev, 0);
st32->lst_ino = st->st_ino;
st32->lst_mode = st->st_mode;
if (st->st_nlink >= (1 << 15))
st32->lst_nlink = (1 << 15) - 1;
else
st32->lst_nlink = st->st_nlink;
st32->lst_uid = st->st_uid;
st32->lst_gid = st->st_gid;
st32->lst_rdev = linux_fakedev(st->st_rdev, 0);
st32->lst_size = st->st_size;
st32->lst_blksize = st->st_blksize;
st32->lst_blocks = st->st_blocks;
st32->lst_atime = st->st_atime;
st32->lst_mtime = st->st_mtime;
st32->lst_ctime = st->st_ctime;
#ifdef LINUX32_STAT_HAS_NSEC
st32->lst_atime_nsec = st->st_atimensec;
st32->lst_mtime_nsec = st->st_mtimensec;
st32->lst_ctime_nsec = st->st_ctimensec;
#endif
}
static inline void
bsd_to_linux32_stat64(struct stat *st, struct linux32_stat64 *st32)
{
@ -108,6 +136,63 @@ bsd_to_linux32_stat64(struct stat *st, struct linux32_stat64 *st32)
#endif
}
int
linux32_sys_stat(struct lwp *l, const struct linux32_sys_stat_args *uap, register_t *retval)
{
/* {
syscallarg(netbsd32_charp) path;
syscallarg(linux32_statp) sp;
} */
int error;
struct stat st;
struct linux32_stat st32;
error = do_sys_stat(SCARG_P32(uap, path), FOLLOW, &st);
if (error != 0)
return error;
bsd_to_linux32_stat(&st, &st32);
return copyout(&st32, SCARG_P32(uap, sp), sizeof(st32));
}
int
linux32_sys_lstat(struct lwp *l, const struct linux32_sys_lstat_args *uap, register_t *retval)
{
/* {
syscallarg(netbsd32_charp) path;
syscallarg(linux32_statp) sp;
} */
int error;
struct stat st;
struct linux32_stat st32;
error = do_sys_stat(SCARG_P32(uap, path), NOFOLLOW, &st);
if (error != 0)
return error;
bsd_to_linux32_stat(&st, &st32);
return copyout(&st32, SCARG_P32(uap, sp), sizeof(st32));
}
int
linux32_sys_fstat(struct lwp *l, const struct linux32_sys_fstat_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(linux32_statp) sp;
} */
int error;
struct stat st;
struct linux32_stat st32;
error = do_sys_fstat(SCARG(uap, fd), &st);
if (error != 0)
return error;
bsd_to_linux32_stat(&st, &st32);
return copyout(&st32, SCARG_P32(uap, sp), sizeof(st32));
}
int
linux32_sys_stat64(struct lwp *l, const struct linux32_sys_stat64_args *uap, register_t *retval)
{