diff options
| author | Otto Moerbeek <otto@cvs.openbsd.org> | 2007-04-30 18:40:25 +0000 |
|---|---|---|
| committer | Otto Moerbeek <otto@cvs.openbsd.org> | 2007-04-30 18:40:25 +0000 |
| commit | 4f35af841428f33d19254e4ea974c82e81082047 (patch) | |
| tree | eb5f96e55f8987b05d818ce9611111df7c097d61 /bin | |
| parent | d4d905fc80f79a09a6cca55c91f89796efd06fd1 (diff) | |
ffs2 support for reading df data directly from device; ok millert@ pedro@
Diffstat (limited to 'bin')
| -rw-r--r-- | bin/df/ffs_df.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/bin/df/ffs_df.c b/bin/df/ffs_df.c index 7157e85ad53..358bd423723 100644 --- a/bin/df/ffs_df.c +++ b/bin/df/ffs_df.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ffs_df.c,v 1.11 2007/03/19 13:27:47 pedro Exp $ */ +/* $OpenBSD: ffs_df.c,v 1.12 2007/04/30 18:40:24 otto Exp $ */ /* * Copyright (c) 1980, 1990, 1993, 1994 @@ -66,22 +66,34 @@ ffs_df(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) { + if (!((bread(rfd, (off_t)SBLOCK_UFS1, &sblock, SBSIZE) == 1 && + sblock.fs_magic == FS_UFS1_MAGIC) || + (bread(rfd, (off_t)SBLOCK_UFS2, &sblock, SBSIZE) == 1 && + sblock.fs_magic == FS_UFS2_MAGIC))) { return (-1); } + sfsp->f_flags = 0; sfsp->f_bsize = sblock.fs_fsize; sfsp->f_iosize = sblock.fs_bsize; - sfsp->f_blocks = sblock.fs_ffs1_dsize; - sfsp->f_bfree = sblock.fs_ffs1_cstotal.cs_nbfree * sblock.fs_frag + - sblock.fs_ffs1_cstotal.cs_nffree; - sfsp->f_bavail = ((int64_t)sblock.fs_ffs1_dsize * (100 - - sblock.fs_minfree) / 100) - (sblock.fs_ffs1_dsize - sfsp->f_bfree); - sfsp->f_files = sblock.fs_ncg * sblock.fs_ipg - ROOTINO; - sfsp->f_ffree = sblock.fs_ffs1_cstotal.cs_nifree; + if (sblock.fs_magic == FS_UFS1_MAGIC) { + sfsp->f_blocks = sblock.fs_ffs1_dsize; + sfsp->f_bfree = sblock.fs_ffs1_cstotal.cs_nbfree * + sblock.fs_frag + sblock.fs_ffs1_cstotal.cs_nffree; + sfsp->f_bavail = ((int64_t)sblock.fs_ffs1_dsize * (100 - + sblock.fs_minfree) / 100) - (sblock.fs_ffs1_dsize - + sfsp->f_bfree); + sfsp->f_files = sblock.fs_ncg * sblock.fs_ipg - ROOTINO; + sfsp->f_ffree = sblock.fs_ffs1_cstotal.cs_nifree; + } else { + 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) |