glibc/sysdeps/mach/hurd/xstatconv.c

65 lines
2.1 KiB
C

/* Convert between `struct stat' format, and `struct stat64' format.
Copyright (C) 2000-2017 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 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/stat.h>
static inline int
xstat64_conv (struct stat *buf, const struct stat64 *buf64)
{
if (sizeof *buf == sizeof *buf64
&& sizeof buf->st_ino == sizeof buf64->st_ino
&& sizeof buf->st_size == sizeof buf64->st_size
&& sizeof buf->st_blocks == sizeof buf64->st_blocks)
{
*buf = *(struct stat *) buf64;
return 0;
}
buf->st_fstype = buf64->st_fstype;
buf->st_fsid = buf64->st_fsid;
buf->st_ino = buf64->st_ino;
buf->st_gen = buf64->st_gen;
buf->st_rdev = buf64->st_rdev;
buf->st_mode = buf64->st_mode;
buf->st_nlink = buf64->st_nlink;
buf->st_uid = buf64->st_uid;
buf->st_gid = buf64->st_gid;
buf->st_size = buf64->st_size;
buf->st_atim = buf64->st_atim;
buf->st_mtim = buf64->st_mtim;
buf->st_ctim = buf64->st_ctim;
buf->st_blksize = buf64->st_blksize;
buf->st_blocks = buf64->st_blocks;
buf->st_author = buf64->st_author;
buf->st_flags = buf64->st_flags;
if ((sizeof buf->st_ino != sizeof buf64->st_ino
&& buf->st_ino != buf64->st_ino)
|| (sizeof buf->st_size != sizeof buf64->st_size
&& buf->st_size != buf64->st_size)
|| (sizeof buf->st_blocks != sizeof buf64->st_blocks
&& buf->st_blocks != buf64->st_blocks))
{
__set_errno (EOVERFLOW);
return -1;
}
return 0;
}