From e3b907432e2c354bd482ce2bc4bfd0d99cfbfa17 Mon Sep 17 00:00:00 2001 From: "Michael I. Bushnell" Date: Wed, 12 Oct 1994 23:44:11 +0000 Subject: Initial revision --- ufs-fsck/utilities.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 ufs-fsck/utilities.c (limited to 'ufs-fsck') diff --git a/ufs-fsck/utilities.c b/ufs-fsck/utilities.c new file mode 100644 index 00000000..c4846445 --- /dev/null +++ b/ufs-fsck/utilities.c @@ -0,0 +1,41 @@ +/* Miscellaneous functions for fsck + Copyright (C) 1994 Free Software Foundation, Inc. + Written by Michael I. Bushnell. + + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + The GNU Hurd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "fsck.h" + +/* Read disk block ADDR into BUF of SIZE bytes. */ +void +readblock (daddr_t addr, void *buf, size_t size) +{ + if (lseek (readfd, addr * DEV_BSIZE, L_SET) == -1) + errexit ("CANNOT SEEK TO BLOCK %d", addr); + if (read (readfd, buf, size) != size) + errexit ("CANNOT READ BLOCK %d", addr); +} + +/* Write disk block BLKNO from BUF of SIZE bytes. */ +void +writeblock (daddr_t addr, void *buf, size_t size) +{ + if (lseek (writefd, addr * DEV_BSIZE, L_SET) == -1) + errexit ("CANNOT SEEK TO BLOCK %d", addr); + if (write (writefd, buf, size) != size) + errexit ("CANNOT READ BLOCK %d", addr); +} -- cgit v1.2.3