mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-18 19:10:06 +00:00
146 lines
3.5 KiB
C
146 lines
3.5 KiB
C
/* Convert between the kernel's `struct stat' format, and libc's.
|
|
Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <string.h>
|
|
|
|
|
|
static inline int
|
|
xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
|
|
{
|
|
switch (vers)
|
|
{
|
|
case _STAT_VER_KERNEL:
|
|
/* Nothing to do. The struct is in the form the kernel expects.
|
|
We should have short-circuted before we got here, but for
|
|
completeness... */
|
|
*(struct kernel_stat *) ubuf = *kbuf;
|
|
break;
|
|
|
|
case _STAT_VER_LINUX:
|
|
{
|
|
struct stat *buf = ubuf;
|
|
|
|
/* Convert to current kernel version of `struct stat'. */
|
|
buf->st_dev = kbuf->st_dev;
|
|
#ifdef _HAVE___PAD1
|
|
buf->__pad1 = 0;
|
|
#endif
|
|
buf->st_ino = kbuf->st_ino;
|
|
buf->st_mode = kbuf->st_mode;
|
|
buf->st_nlink = kbuf->st_nlink;
|
|
buf->st_uid = kbuf->st_uid;
|
|
buf->st_gid = kbuf->st_gid;
|
|
buf->st_rdev = kbuf->st_rdev;
|
|
#ifdef _HAVE___PAD2
|
|
buf->__pad2 = 0;
|
|
#endif
|
|
buf->st_size = kbuf->st_size;
|
|
buf->st_blksize = kbuf->st_blksize;
|
|
buf->st_blocks = kbuf->st_blocks;
|
|
buf->st_atime = kbuf->st_atime;
|
|
#ifdef _HAVE___UNUSED1
|
|
buf->__unused1 = 0;
|
|
#endif
|
|
buf->st_mtime = kbuf->st_mtime;
|
|
#ifdef _HAVE___UNUSED2
|
|
buf->__unused2 = 0;
|
|
#endif
|
|
buf->st_ctime = kbuf->st_ctime;
|
|
#ifdef _HAVE___UNUSED3
|
|
buf->__unused3 = 0;
|
|
#endif
|
|
#ifdef _HAVE___UNUSED4
|
|
buf->__unused4 = 0;
|
|
#endif
|
|
#ifdef _HAVE___UNUSED5
|
|
buf->__unused5 = 0;
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
default:
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
xstat64_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
|
|
{
|
|
#ifdef XSTAT_IS_XSTAT64
|
|
return xstat_conv (vers, kbuf, ubuf);
|
|
#else
|
|
switch (vers)
|
|
{
|
|
case _STAT_VER_LINUX:
|
|
{
|
|
struct stat64 *buf = ubuf;
|
|
|
|
/* Convert to current kernel version of `struct stat64'. */
|
|
buf->st_dev = kbuf->st_dev;
|
|
#ifdef _HAVE___PAD1
|
|
buf->__pad1 = 0;
|
|
#endif
|
|
buf->st_ino = kbuf->st_ino;
|
|
buf->st_mode = kbuf->st_mode;
|
|
buf->st_nlink = kbuf->st_nlink;
|
|
buf->st_uid = kbuf->st_uid;
|
|
buf->st_gid = kbuf->st_gid;
|
|
buf->st_rdev = kbuf->st_rdev;
|
|
#ifdef _HAVE___PAD2
|
|
buf->__pad2 = 0;
|
|
#endif
|
|
buf->st_size = kbuf->st_size;
|
|
buf->st_blksize = kbuf->st_blksize;
|
|
buf->st_blocks = kbuf->st_blocks;
|
|
buf->st_atime = kbuf->st_atime;
|
|
#ifdef _HAVE___UNUSED1
|
|
buf->__unused1 = 0;
|
|
#endif
|
|
buf->st_mtime = kbuf->st_mtime;
|
|
#ifdef _HAVE___UNUSED2
|
|
buf->__unused2 = 0;
|
|
#endif
|
|
buf->st_ctime = kbuf->st_ctime;
|
|
#ifdef _HAVE___UNUSED3
|
|
buf->__unused3 = 0;
|
|
#endif
|
|
#ifdef _HAVE___UNUSED4
|
|
buf->__unused4 = 0;
|
|
#endif
|
|
#ifdef _HAVE___UNUSED5
|
|
buf->__unused5 = 0;
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
/* If struct stat64 is different from struct stat then
|
|
_STAT_VER_KERNEL does not make sense. */
|
|
case _STAT_VER_KERNEL:
|
|
default:
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
#endif
|
|
}
|