/* * Copyright (c) 1980, 1990, 1993, 1994 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1980, 1990, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #include <sys/param.h> #include <sys/mount.h> #include <ufs/ufs/dinode.h> #include <ufs/ffs/fs.h> #include <unistd.h> #include <stdlib.h> #include <string.h> #include <fcntl.h> int ffs_df __P((int, char *, struct statfs *)); extern int bread __P((int, off_t, void *, int)); extern char *getmntpt __P((char *)); union { struct fs iu_fs; char dummy[SBSIZE]; } sb; #define sblock sb.iu_fs int ffs_df(rfd, file, sfsp) int rfd; char *file; struct statfs *sfsp; { char *mntpt; if (bread(rfd, (off_t)SBOFF, &sblock, SBSIZE) == 0) { return (-1); } if (sblock.fs_magic != FS_MAGIC) { return (-1); } sfsp->f_flags = 0; sfsp->f_bsize = sblock.fs_fsize; sfsp->f_iosize = sblock.fs_bsize; sfsp->f_blocks = sblock.fs_dsize; sfsp->f_bfree = sblock.fs_cstotal.cs_nbfree * sblock.fs_frag + sblock.fs_cstotal.cs_nffree; sfsp->f_bavail = (sblock.fs_dsize * (100 - sblock.fs_minfree) / 100) - (sblock.fs_dsize - sfsp->f_bfree); sfsp->f_files = sblock.fs_ncg * sblock.fs_ipg - ROOTINO; sfsp->f_ffree = sblock.fs_cstotal.cs_nifree; sfsp->f_fsid.val[0] = 0; sfsp->f_fsid.val[1] = 0; if ((mntpt = getmntpt(file)) == 0) mntpt = ""; memmove(&sfsp->f_mntonname[0], mntpt, MNAMELEN); memmove(&sfsp->f_mntfromname[0], file, MNAMELEN); strncpy(sfsp->f_fstypename, MOUNT_FFS, MFSNAMELEN-1); sfsp->f_fstypename[MFSNAMELEN-1] = '\0'; return (0); }