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/*
* Copyright (c) 2012 Dave Vasilevsky <dave@vasilevsky.ca>
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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.
*/
#include "config.h"
#ifdef _WIN32
#include "win32.h"
ssize_t sqfs_pread(HANDLE file, void *buf, size_t count, sqfs_off_t off) {
DWORD bread;
OVERLAPPED ov = { 0 };
ov.Offset = (DWORD)off;
ov.OffsetHigh = (DWORD)(off >> 32);
if (ReadFile(file, buf, count, &bread, &ov) == FALSE)
return -1;
return bread;
}
#else
#define SQFEATURE NONSTD_PREAD_DEF
#include "nonstd-internal.h"
#include <unistd.h>
#include "common.h"
ssize_t sqfs_pread(sqfs_fd_t fd, void *buf, size_t count, sqfs_off_t off) {
return pread(fd, buf, count, off);
}
#endif
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