af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems/*
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * CDDL HEADER START
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems *
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * The contents of this file are subject to the terms of the
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * Common Development and Distribution License (the "License").
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * You may not use this file except in compliance with the License.
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems *
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * or http://www.opensolaris.org/os/licensing.
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * See the License for the specific language governing permissions
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * and limitations under the License.
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems *
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * When distributing Covered Code, include this CDDL HEADER in each
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * If applicable, add the following below this CDDL HEADER, with the
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * fields enclosed by brackets "[]" replaced with your own identifying
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * information: Portions Copyright [yyyy] [name of copyright owner]
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems *
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * CDDL HEADER END
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems */
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems/*
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems */
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems#include <stdio.h>
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems#include <libintl.h>
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems#include <errno.h>
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems#include <assert.h>
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems#include <unistd.h>
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems#include "bblk_einfo.h"
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems#include "boot_utils.h"
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystemsboolean_t boot_debug = B_FALSE;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystemsboolean_t nowrite = B_FALSE;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystemsvoid
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystemsboot_gdebug(const char *funcname, char *format, ...)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems{
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems va_list ap;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (boot_debug == B_FALSE)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems return;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems (void) fprintf(stdout, "%s(): ", funcname);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems va_start(ap, format);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems /* LINTED: E_SEC_PRINTF_VAR_FMT */
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems (void) vfprintf(stdout, format, ap);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems va_end(ap);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems}
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems/*
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * Common functions to write out and read in block-sized data to a file
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems * descriptor.
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems */
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystemsint
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystemswrite_out(int fd, void *buffer, size_t size, off_t off)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems{
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems int ret;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems char *buf = buffer;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (size % SECTOR_SIZE != 0)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems BOOT_DEBUG("Expected block-sized data, got: %d\n", size);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems /* Dry run. */
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (nowrite)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems return (BC_SUCCESS);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems for (;;) {
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems again:
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems ret = pwrite(fd, buf, size, off);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (ret == -1) {
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (errno == EAGAIN)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems goto again;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems else
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems return (BC_ERROR);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems }
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (ret < size) {
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems size -= ret;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems off += ret;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems buf += ret;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems } else {
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems break;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems }
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems }
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems return (BC_SUCCESS);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems}
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystemsint
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystemsread_in(int fd, void *buffer, size_t size, off_t off)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems{
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems int ret;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems char *buf = buffer;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (size % SECTOR_SIZE != 0)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems BOOT_DEBUG("Expected block-sized data, got: %d\n", size);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems for (;;) {
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems again:
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems ret = pread(fd, buf, size, off);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (ret == -1) {
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (errno == EAGAIN)
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems goto again;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems else
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems return (BC_ERROR);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems }
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems if (ret < size) {
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems size -= ret;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems off += ret;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems buf += ret;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems } else {
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems break;
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems }
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems }
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems return (BC_SUCCESS);
af28f636873b7156cfd73ceffa927658cca33fd0Enrico Perla - Sun Microsystems}