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04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/* Return information about the filesystem on which FD resides.
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Copyright (C) 1996-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <string.h>
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#include <stddef.h>
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#include <sysdep.h>
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#include <kernel_stat.h>
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/* Hide the prototypes for __fstatfs and fstatfs so that GCC will not
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complain about the different function signatures if they are aliased
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to __fstat64. If STATFS_IS_STATFS64 is not zero then the statfs and
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statfs64 structures have an identical layout but different type names. */
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#if STATFS_IS_STATFS64
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# define __fstatfs __fstatfs_disable
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# define fstatfs fstatfs_disable
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#endif
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#include <sys/statfs.h>
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#include <kernel-features.h>
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/* Defined in statfs64.c. */
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extern int __no_statfs64 attribute_hidden;
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/* Return information about the filesystem on which FD resides. */
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int
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__fstatfs64 (int fd, struct statfs64 *buf)
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{
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#ifdef __NR_fstatfs64
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# if __ASSUME_STATFS64 == 0
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if (! __no_statfs64)
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# endif
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{
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int result = INLINE_SYSCALL (fstatfs64, 3, fd, sizeof (*buf), buf);
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# if __ASSUME_STATFS64 == 0
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if (result == 0 || errno != ENOSYS)
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# endif
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return result;
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# if __ASSUME_STATFS64 == 0
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__no_statfs64 = 1;
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# endif
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}
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#endif
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#if __ASSUME_STATFS64 == 0
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struct statfs buf32;
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if (__fstatfs (fd, &buf32) < 0)
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return -1;
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buf->f_type = buf32.f_type;
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buf->f_bsize = buf32.f_bsize;
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buf->f_blocks = buf32.f_blocks;
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buf->f_bfree = buf32.f_bfree;
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buf->f_bavail = buf32.f_bavail;
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buf->f_files = buf32.f_files;
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buf->f_ffree = buf32.f_ffree;
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buf->f_fsid = buf32.f_fsid;
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buf->f_namelen = buf32.f_namelen;
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buf->f_frsize = buf32.f_frsize;
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memcpy (buf->f_spare, buf32.f_spare, sizeof (buf32.f_spare));
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return 0;
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#endif
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}
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weak_alias (__fstatfs64, fstatfs64)
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#undef __fstatfs
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#undef fstatfs
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#if STATFS_IS_STATFS64
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weak_alias (__fstatfs64, __fstatfs)
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weak_alias (__fstatfs64, fstatfs)
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#endif
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