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/*
* utils - miscellaneous I/O utilities for cryptsetup
*
* Copyright (C) 2004 Jana Saout <jana@saout.de>
* Copyright (C) 2004-2007 Clemens Fruhwirth <clemens@endorphin.org>
* Copyright (C) 2009-2021 Red Hat, Inc. All rights reserved.
* Copyright (C) 2009-2021 Milan Broz
*
* This program 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
* of the License, or (at your option) any later version.
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _CRYPTSETUP_UTILS_IO_H
#define _CRYPTSETUP_UTILS_IO_H
#include <sys/types.h>
ssize_t read_buffer(int fd, void *buf, size_t length);
ssize_t read_buffer_intr(int fd, void *buf, size_t length, volatile int *quit);
ssize_t write_buffer(int fd, const void *buf, size_t length);
ssize_t write_buffer_intr(int fd, const void *buf, size_t length, volatile int *quit);
ssize_t write_blockwise(int fd, size_t bsize, size_t alignment,
void *orig_buf, size_t length);
ssize_t read_blockwise(int fd, size_t bsize, size_t alignment,
void *orig_buf, size_t length);
ssize_t write_lseek_blockwise(int fd, size_t bsize, size_t alignment,
void *buf, size_t length, off_t offset);
ssize_t read_lseek_blockwise(int fd, size_t bsize, size_t alignment,
void *buf, size_t length, off_t offset);
#endif
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