mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-29 14:01:20 +00:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
91 lines
3.1 KiB
C
91 lines
3.1 KiB
C
/* Generic implementation of statx based on fstatat64.
|
|
Copyright (C) 2018-2021 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 <fcntl.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/sysmacros.h>
|
|
|
|
/* Obtain the original definition of struct statx. */
|
|
#undef __statx_defined
|
|
#define statx original_statx
|
|
#include <bits/types/struct_statx.h>
|
|
#undef statx
|
|
|
|
static inline struct statx_timestamp
|
|
statx_convert_timestamp (struct timespec tv)
|
|
{
|
|
return (struct statx_timestamp) { tv.tv_sec, tv.tv_nsec };
|
|
}
|
|
|
|
/* Approximate emulation of statx. This will always fill in
|
|
POSIX-mandated attributes even if the underlying file system does
|
|
not actually support it (for example, GID and UID on file systems
|
|
without UNIX-style permissions). */
|
|
static __attribute__ ((unused)) int
|
|
statx_generic (int fd, const char *path, int flags,
|
|
unsigned int mask, struct statx *buf)
|
|
{
|
|
/* Flags which need to be cleared before passing them to
|
|
fstatat64. */
|
|
static const int clear_flags = AT_STATX_SYNC_AS_STAT;
|
|
|
|
/* Flags supported by our emulation. */
|
|
static const int supported_flags
|
|
= AT_EMPTY_PATH | AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW | clear_flags;
|
|
|
|
if (__glibc_unlikely ((flags & ~supported_flags) != 0))
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
struct stat64 st;
|
|
int ret = __fstatat64 (fd, path, &st, flags & ~clear_flags);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
/* The interface is defined in such a way that unused (padding)
|
|
fields have to be cleared. STATX_BASIC_STATS corresponds to the
|
|
data which is available via fstatat64. */
|
|
struct original_statx obuf =
|
|
{
|
|
.stx_mask = STATX_BASIC_STATS,
|
|
.stx_blksize = st.st_blksize,
|
|
.stx_nlink = st.st_nlink,
|
|
.stx_uid = st.st_uid,
|
|
.stx_gid = st.st_gid,
|
|
.stx_mode = st.st_mode,
|
|
.stx_ino = st.st_ino,
|
|
.stx_size = st.st_size,
|
|
.stx_blocks = st.st_blocks,
|
|
.stx_atime = statx_convert_timestamp (st.st_atim),
|
|
.stx_ctime = statx_convert_timestamp (st.st_ctim),
|
|
.stx_mtime = statx_convert_timestamp (st.st_mtim),
|
|
.stx_rdev_major = major (st.st_rdev),
|
|
.stx_rdev_minor = minor (st.st_rdev),
|
|
.stx_dev_major = major (st.st_dev),
|
|
.stx_dev_minor = minor (st.st_dev),
|
|
};
|
|
_Static_assert (sizeof (*buf) >= sizeof (obuf), "struct statx size");
|
|
memcpy (buf, &obuf, sizeof (obuf));
|
|
|
|
return 0;
|
|
}
|