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