73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/* Return information about the filesystem on which FD resides.
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Copyright (C) 1996-2013 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 <sys/stat.h>
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#include <sys/statfs.h>
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#include <sys/statvfs.h>
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#include <kernel-features.h>
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extern void __internal_statvfs64 (const char *name, struct statvfs64 *buf,
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struct statfs64 *fsbuf, struct stat64 *st);
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/* Return information about the filesystem on which FD resides. */
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int
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__fstatvfs64 (int fd, struct statvfs64 *buf)
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{
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struct statfs64 fsbuf;
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int res = __fstatfs64 (fd, &fsbuf);
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#ifndef __ASSUME_STATFS64
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if (res < 0 && errno == ENOSYS)
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{
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struct statvfs buf32;
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res = fstatvfs (fd, &buf32);
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if (res == 0)
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{
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buf->f_bsize = buf32.f_bsize;
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buf->f_frsize = buf32.f_frsize;
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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_favail = buf32.f_favail;
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buf->f_fsid = buf32.f_fsid;
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buf->f_flag = buf32.f_flag;
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buf->f_namemax = buf32.f_namemax;
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memcpy (buf->__f_spare, buf32.__f_spare, sizeof (buf32.__f_spare));
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}
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}
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#endif
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if (res == 0)
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{
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/* Convert the result. */
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struct stat64 st;
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__internal_statvfs64 (NULL, buf, &fsbuf,
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fstat64 (fd, &st) == -1 ? NULL : &st);
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}
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return res;
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}
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weak_alias (__fstatvfs64, fstatvfs64)
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