glibc/sysdeps/unix/sysv/linux/statfs64.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
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
2021-01-02 12:17:34 -08:00

97 lines
2.6 KiB
C

/* Return information about the filesystem on which FILE resides.
Copyright (C) 1996-2021 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 <string.h>
#include <stddef.h>
#include <sysdep.h>
#include <kernel_stat.h>
/* Hide the prototypes for __statfs and statfs so that GCC will not
complain about the different function signatures if they are aliased
to __stat64. If STATFS_IS_STATFS64 is not zero then the statfs and
statfs64 structures have an identical layout but different type names. */
#if STATFS_IS_STATFS64
# define __statfs __statfs_disable
# define statfs statfs_disable
#endif
#include <sys/statfs.h>
#include <kernel-features.h>
# if __ASSUME_STATFS64 == 0
int __no_statfs64 attribute_hidden;
#endif
/* Return information about the filesystem on which FILE resides. */
int
__statfs64 (const char *file, struct statfs64 *buf)
{
#ifdef __NR_statfs64
# if __ASSUME_STATFS64 == 0
if (! __no_statfs64)
# endif
{
int result = INLINE_SYSCALL (statfs64, 3, file, sizeof (*buf), buf);
# if __ASSUME_STATFS64 == 0
if (result == 0 || errno != ENOSYS)
# endif
return result;
# if __ASSUME_STATFS64 == 0
__no_statfs64 = 1;
# endif
}
#endif
#if __ASSUME_STATFS64 == 0
struct statfs buf32;
if (__statfs (file, &buf32) < 0)
return -1;
buf->f_type = buf32.f_type;
buf->f_bsize = buf32.f_bsize;
buf->f_blocks = buf32.f_blocks;
buf->f_bfree = buf32.f_bfree;
buf->f_bavail = buf32.f_bavail;
buf->f_files = buf32.f_files;
buf->f_ffree = buf32.f_ffree;
buf->f_fsid = buf32.f_fsid;
buf->f_namelen = buf32.f_namelen;
buf->f_frsize = buf32.f_frsize;
buf->f_flags = buf32.f_flags;
memcpy (buf->f_spare, buf32.f_spare, sizeof (buf32.f_spare));
return 0;
#endif
}
weak_alias (__statfs64, statfs64)
#undef __statfs
#undef statfs
#if STATFS_IS_STATFS64
weak_alias (__statfs64, __statfs)
weak_alias (__statfs64, statfs)
libc_hidden_ver (__statfs64, __statfs)
#endif