summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/common/xstatconv.c
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/linux/common/xstatconv.c')
-rw-r--r--libc/sysdeps/linux/common/xstatconv.c82
1 files changed, 9 insertions, 73 deletions
diff --git a/libc/sysdeps/linux/common/xstatconv.c b/libc/sysdeps/linux/common/xstatconv.c
index 325b70550..ab0dcef14 100644
--- a/libc/sysdeps/linux/common/xstatconv.c
+++ b/libc/sysdeps/linux/common/xstatconv.c
@@ -49,102 +49,38 @@ void __xstat_conv(struct kernel_stat *kbuf, struct stat *buf)
buf->st_mtime = kbuf->st_mtime;
buf->st_ctime = kbuf->st_ctime;
#ifdef STAT_HAVE_NSEC
- buf->st_atime_nsec = kbuf->st_atime_nsec;
- buf->st_mtime_nsec = kbuf->st_mtime_nsec;
- buf->st_ctime_nsec = kbuf->st_ctime_nsec;
+ buf->st_atime_nsec = kbuf->st_atimensec;
+ buf->st_mtime_nsec = kbuf->st_mtimensec;
+ buf->st_ctime_nsec = kbuf->st_ctimensec;
#endif
}
#if defined(__UCLIBC_HAS_LFS__)
-/* OK, this is ugly, but not much we can do about it.
- *
- * The issue at hand is that the kernel introduced an ABI change between
- * 2.4 and 2.6 for big endian machines on some architectures in stat64 with
- * st_dev and st_rdev fields. Older kernels used 'short' but newer kernels
- * use a 'long'. As if that wasn't fun enough, the location of st_blocks and
- * its padding have swapped. So, when applicable, we need to detect and shift
- * bits around and hope for the best. The kernel at least helps us out a bit
- * because it will be sure to zero out all padding fields.
- *
- * Unimportant Note About Mis-detections:
- * - if user is running a 2.4 system with the old ABI and they stat a file on
- * a system which major 0 / minor 0. We can ignore this though because the
- * kernel has major 0 reserved for non mountable devices (wh00t!)
- * - if user is running a 2.6 system with the new ABI and they stat a file on
- * a device whose st_dev fills up the lower 6 bytes into the upper 2 bytes
- * which overlap. Again we should be able to safely ignore this because
- * that means it'd be a pretty big ass (read: uncommon) major/minor combo :).
-
- Old [2.4]:
-struct stat64 {
- unsigned short st_dev;
- unsigned char __pad0[10];
- ...
- unsigned long st_blocks;
- unsigned long __pad4;
- ...
- New [2.6]:
-struct stat64 {
- unsigned long long st_dev;
- unsigned char __pad0[4];
- ...
- unsigned long __pad4;
- unsigned long st_blocks;
- ...
-
- * sizeof(unsigned short) = 2
- * sizeof(unsigned long long) = 8
- */
-#include <endian.h>
-#include <sys/utsname.h>
-#if BYTE_ORDER == BIG_ENDIAN && \
- (defined(__ARMEB__)) /* || defined(__sh__) || defined(__sparc__))*/
-# define NEED_ABI_CHECK 1
-#else
-# define NEED_ABI_CHECK 0
-#endif
-
void __xstat64_conv(struct kernel_stat64 *kbuf, struct stat64 *buf)
{
/* Convert to current kernel version of `struct stat64'. */
-
-#if NEED_ABI_CHECK
- if (!kbuf->st_dev.old_abi) {
- /* new 2.6 ABI */
- buf->st_dev = kbuf->st_dev.new_abi;
- buf->st_rdev = kbuf->st_rdev.new_abi;
- buf->st_blocks = kbuf->st_blocks;
- } else {
- /* old 2.4 ABI */
- buf->st_dev = kbuf->st_dev.old_abi;
- buf->st_rdev = kbuf->st_dev.old_abi;
- buf->st_blocks = kbuf->__pad_st_blocks;
- }
-#else
buf->st_dev = kbuf->st_dev;
buf->st_ino = kbuf->st_ino;
- buf->st_rdev = kbuf->st_rdev;
-#endif
-
#ifdef _HAVE_STAT64___ST_INO
buf->__st_ino = kbuf->__st_ino;
#endif
-
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;
buf->st_size = kbuf->st_size;
buf->st_blksize = kbuf->st_blksize;
+ buf->st_blocks = kbuf->st_blocks;
buf->st_atime = kbuf->st_atime;
buf->st_mtime = kbuf->st_mtime;
buf->st_ctime = kbuf->st_ctime;
-
#ifdef STAT_HAVE_NSEC
- buf->st_atime_nsec = kbuf->st_atime_nsec;
- buf->st_mtime_nsec = kbuf->st_mtime_nsec;
- buf->st_ctime_nsec = kbuf->st_ctime_nsec;
+ buf->st_atime_nsec = kbuf->st_atimensec;
+ buf->st_mtime_nsec = kbuf->st_mtimensec;
+ buf->st_ctime_nsec = kbuf->st_ctimensec;
#endif
}
+
#endif