mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-11 13:50:06 +00:00
d552058570
This is clever, but it confuses downstream detection in at least zstd and GNOME's glib. zstd has preprocessor tests for the 'st_mtime' macro, which is not provided by the path using the anonymous union; glib checks for the presence of 'st_mtimensec' in struct stat but then tries to access that field in struct statx (which might be a bug on its own). Checked with a build for alpha-linux-gnu.
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/* Convert between the kernel's `struct stat' format, and libc's.
|
|
Copyright (C) 1997-2020 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 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
#include <kernel_stat.h>
|
|
#include <xstatconv.h>
|
|
#include <sys/syscall.h>
|
|
|
|
int
|
|
__xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
|
|
{
|
|
switch (vers)
|
|
{
|
|
case _STAT_VER_KERNEL:
|
|
*(struct kernel_stat *) ubuf = *kbuf;
|
|
break;
|
|
|
|
case _STAT_VER_GLIBC2:
|
|
{
|
|
struct glibc2_stat *buf = ubuf;
|
|
|
|
buf->st_dev = kbuf->st_dev;
|
|
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;
|
|
buf->st_size = kbuf->st_size;
|
|
buf->st_atime_sec = kbuf->st_atime_sec;
|
|
buf->st_mtime_sec = kbuf->st_mtime_sec;
|
|
buf->st_ctime_sec = kbuf->st_ctime_sec;
|
|
buf->st_blksize = kbuf->st_blksize;
|
|
buf->st_blocks = kbuf->st_blocks;
|
|
buf->st_flags = kbuf->st_flags;
|
|
buf->st_gen = kbuf->st_gen;
|
|
}
|
|
break;
|
|
|
|
case _STAT_VER_GLIBC2_1:
|
|
{
|
|
struct glibc21_stat *buf = ubuf;
|
|
|
|
buf->st_dev = kbuf->st_dev;
|
|
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;
|
|
buf->st_size = kbuf->st_size;
|
|
buf->st_atime_sec = kbuf->st_atime_sec;
|
|
buf->st_mtime_sec = kbuf->st_mtime_sec;
|
|
buf->st_ctime_sec = kbuf->st_ctime_sec;
|
|
buf->st_blocks = kbuf->st_blocks;
|
|
buf->st_blksize = kbuf->st_blksize;
|
|
buf->st_flags = kbuf->st_flags;
|
|
buf->st_gen = kbuf->st_gen;
|
|
buf->__pad3 = 0;
|
|
buf->__glibc_reserved[0] = 0;
|
|
buf->__glibc_reserved[1] = 0;
|
|
buf->__glibc_reserved[2] = 0;
|
|
buf->__glibc_reserved[3] = 0;
|
|
}
|
|
break;
|
|
|
|
case _STAT_VER_GLIBC2_3_4:
|
|
{
|
|
struct stat64 *buf = ubuf;
|
|
|
|
buf->st_dev = kbuf->st_dev;
|
|
buf->st_ino = kbuf->st_ino;
|
|
buf->st_rdev = kbuf->st_rdev;
|
|
buf->st_size = kbuf->st_size;
|
|
buf->st_blocks = kbuf->st_blocks;
|
|
|
|
buf->st_mode = kbuf->st_mode;
|
|
buf->st_uid = kbuf->st_uid;
|
|
buf->st_gid = kbuf->st_gid;
|
|
buf->st_blksize = kbuf->st_blksize;
|
|
buf->st_nlink = kbuf->st_nlink;
|
|
buf->__pad0 = 0;
|
|
|
|
buf->st_atim.tv_sec = kbuf->st_atime_sec;
|
|
buf->st_atim.tv_nsec = 0;
|
|
buf->st_mtim.tv_sec = kbuf->st_mtime_sec;
|
|
buf->st_mtim.tv_nsec = 0;
|
|
buf->st_ctim.tv_sec = kbuf->st_ctime_sec;
|
|
buf->st_ctim.tv_nsec = 0;
|
|
|
|
buf->__glibc_reserved[0] = 0;
|
|
buf->__glibc_reserved[1] = 0;
|
|
buf->__glibc_reserved[2] = 0;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|