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120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/* $NetBSD: statvfs.c,v 1.6 2013/09/08 16:24:43 ryoon Exp $ */
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/*-
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* Copyright (c) 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <nbcompat.h>
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#include <nbcompat/string.h>
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#include <nbcompat/statvfs.h>
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static void fs2vfs(struct statvfs *vfs, const struct statfs *sfs);
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static void
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fs2vfs(struct statvfs *vfs, const struct statfs *sfs)
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{
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vfs->f_flag = 0;
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#if HAVE_STRUCT_STATFS_F_FLAGS
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if (sfs->f_flags & MNT_RDONLY)
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vfs->f_flag |= ST_RDONLY;
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if (sfs->f_flags & MNT_NOSUID)
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vfs->f_flag |= ST_NOSUID;
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#endif
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#if HAVE_STRUCT_STATFS_F_FSIZE
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vfs->f_bsize = sfs->f_fsize
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#else
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vfs->f_bsize = sfs->f_bsize;
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#endif
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vfs->f_frsize = sfs->f_bsize;
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#if HAVE_STRUCT_STATFS_F_IOSIZE
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vfs->f_iosize = sfs->f_iosize;
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#else
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vfs->f_iosize = sfs->f_bsize;
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#endif
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vfs->f_blocks = sfs->f_blocks;
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vfs->f_bfree = sfs->f_bfree;
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vfs->f_bavail = sfs->f_bavail;
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vfs->f_bresvd = 0; /* XXX */
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vfs->f_files = sfs->f_files;
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vfs->f_ffree = sfs->f_ffree;
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/*
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* f_favail is supposed to only be free nodes available to non-root
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* but that info isn't available via statfs(). Just fudge it by
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* assigning it f_ffree as well, which is the total free nodes.
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*/
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vfs->f_favail = sfs->f_ffree;
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vfs->f_fresvd = 0; /* XXX */
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vfs->f_syncreads = 0; /* XXX */
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vfs->f_syncwrites= 0; /* XXX */
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vfs->f_asyncreads = 0; /* XXX */
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vfs->f_asyncwrites= 0; /* XXX */
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(void) memcpy(&vfs->f_fsidx, &sfs->f_fsid, sizeof(fsid_t));
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#if !defined(__MINT__)
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vfs->f_fsid = sfs->f_fsid.val[0];
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#else
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vfs->f_fsid = sfs->f_fsid;
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#endif
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#if HAVE_STRUCT_STATFS_F_IOSIZE
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vfs->f_namemax = sfs->f_name_max;
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#else
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vfs->f_namemax = VFS_MNAMELEN; /* XXX */
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#endif
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vfs->f_owner = 0; /* XXX */
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vfs->f_fstypename[0] = '\0'; /* XXX */
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vfs->f_mntonname[0] = '\0'; /* XXX */
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vfs->f_mntfromname[0] = '\0'; /* XXX */
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}
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int
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statvfs(const char *path, struct statvfs *vfs)
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{
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struct statfs sfs;
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if (statfs(path, &sfs) == -1)
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return -1;
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fs2vfs(vfs, &sfs);
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return 0;
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}
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int
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fstatvfs(int fd, struct statvfs *vfs)
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{
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struct statfs sfs;
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if (fstatfs(fd, &sfs) == -1)
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return -1;
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fs2vfs(vfs, &sfs);
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return 0;
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}
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