/* Convert between the kernel's `struct stat' format, and libc's.
- Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1991-2020 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.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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.
+ Lesser 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. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#ifdef STAT_IS_KERNEL_STAT
+
+/* Dummy. */
+struct kernel_stat;
+
+#else
#include <string.h>
-static inline int
-xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
+#if XSTAT_IS_XSTAT64
+int
+__xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
{
switch (vers)
{
/* Nothing to do. The struct is in the form the kernel expects.
We should have short-circuted before we got here, but for
completeness... */
- memcpy ((struct kernel_stat *) ubuf, kbuf, sizeof (*kbuf));
+ *(struct kernel_stat *) ubuf = *kbuf;
break;
case _STAT_VER_LINUX:
/* Convert to current kernel version of `struct stat'. */
buf->st_dev = kbuf->st_dev;
-#ifdef _HAVE___PAD1
+#ifdef _HAVE_STAT___PAD1
buf->__pad1 = 0;
#endif
buf->st_ino = kbuf->st_ino;
buf->st_uid = kbuf->st_uid;
buf->st_gid = kbuf->st_gid;
buf->st_rdev = kbuf->st_rdev;
-#ifdef _HAVE___PAD2
+#ifdef _HAVE_STAT___PAD2
buf->__pad2 = 0;
#endif
buf->st_size = kbuf->st_size;
buf->st_blksize = kbuf->st_blksize;
buf->st_blocks = kbuf->st_blocks;
+#ifdef _HAVE_STAT_NSEC
+ buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
+ buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
+ buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
+ buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
+ buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
+ buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
+#else
buf->st_atime = kbuf->st_atime;
-#ifdef _HAVE___UNUSED1
- buf->__unused1 = 0;
+ buf->st_mtime = kbuf->st_mtime;
+ buf->st_ctime = kbuf->st_ctime;
+#endif
+#ifdef _HAVE_STAT___UNUSED1
+ buf->__glibc_reserved1 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED2
+ buf->__glibc_reserved2 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED3
+ buf->__glibc_reserved3 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED4
+ buf->__glibc_reserved4 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED5
+ buf->__glibc_reserved5 = 0;
+#endif
+ }
+ break;
+
+ default:
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+ }
+
+ return 0;
+}
+#endif
+
+int
+__xstat64_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
+{
+#if 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_STAT64___PAD1
+ buf->__pad1 = 0;
+#endif
+ buf->st_ino = kbuf->st_ino;
+#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;
+#ifdef _HAVE_STAT64___PAD2
+ buf->__pad2 = 0;
#endif
+ buf->st_size = kbuf->st_size;
+ buf->st_blksize = kbuf->st_blksize;
+ buf->st_blocks = kbuf->st_blocks;
+#ifdef _HAVE_STAT64_NSEC
+ buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
+ buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
+ buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
+ buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
+ buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
+ buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
+#else
+ buf->st_atime = kbuf->st_atime;
buf->st_mtime = kbuf->st_mtime;
-#ifdef _HAVE___UNUSED2
- buf->__unused2 = 0;
+ buf->st_ctime = kbuf->st_ctime;
#endif
+#ifdef _HAVE_STAT64___UNUSED1
+ buf->__glibc_reserved1 = 0;
+#endif
+#ifdef _HAVE_STAT64___UNUSED2
+ buf->__glibc_reserved2 = 0;
+#endif
+#ifdef _HAVE_STAT64___UNUSED3
+ buf->__glibc_reserved3 = 0;
+#endif
+#ifdef _HAVE_STAT64___UNUSED4
+ buf->__glibc_reserved4 = 0;
+#endif
+#ifdef _HAVE_STAT64___UNUSED5
+ buf->__glibc_reserved5 = 0;
+#endif
+ }
+ break;
+
+ /* If struct stat64 is different from struct stat then
+ _STAT_VER_KERNEL does not make sense. */
+ case _STAT_VER_KERNEL:
+ default:
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+ }
+
+ return 0;
+#endif
+}
+
+int
+__xstat32_conv (int vers, struct stat64 *kbuf, struct stat *buf)
+{
+ switch (vers)
+ {
+ case _STAT_VER_LINUX:
+ {
+ /* Convert current kernel version of `struct stat64' to
+ `struct stat'. */
+ buf->st_dev = kbuf->st_dev;
+#ifdef _HAVE_STAT___PAD1
+ buf->__pad1 = 0;
+#endif
+ buf->st_ino = kbuf->st_ino;
+ if (sizeof (buf->st_ino) != sizeof (kbuf->st_ino)
+ && buf->st_ino != kbuf->st_ino)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+ 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_STAT___PAD2
+ buf->__pad2 = 0;
+#endif
+ buf->st_size = kbuf->st_size;
+ /* Check for overflow. */
+ if (sizeof (buf->st_size) != sizeof (kbuf->st_size)
+ && buf->st_size != kbuf->st_size)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+ buf->st_blksize = kbuf->st_blksize;
+ buf->st_blocks = kbuf->st_blocks;
+ /* Check for overflow. */
+ if (sizeof (buf->st_blocks) != sizeof (kbuf->st_blocks)
+ && buf->st_blocks != kbuf->st_blocks)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+#ifdef _HAVE_STAT_NSEC
+ buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
+ buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
+ buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
+ buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
+ buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
+ buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
+#else
+ buf->st_atime = kbuf->st_atime;
+ buf->st_mtime = kbuf->st_mtime;
buf->st_ctime = kbuf->st_ctime;
-#ifdef _HAVE___UNUSED3
- buf->__unused3 = 0;
#endif
-#ifdef _HAVE___UNUSED4
- buf->__unused4 = 0;
+
+#ifdef _HAVE_STAT___UNUSED1
+ buf->__glibc_reserved1 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED2
+ buf->__glibc_reserved2 = 0;
#endif
-#ifdef _HAVE___UNUSED5
- buf->__unused5 = 0;
+#ifdef _HAVE_STAT___UNUSED3
+ buf->__glibc_reserved3 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED4
+ buf->__glibc_reserved4 = 0;
+#endif
+#ifdef _HAVE_STAT___UNUSED5
+ buf->__glibc_reserved5 = 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 INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
}
return 0;
}
+
+#endif
projects / thirdparty / glibc.git / blobdiff