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/*
* Copyright (C) 2010 Company 100, Inc. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. OR
* CONTRIBUTORS 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"
#include "SharedBuffer.h"
#include "FileSystem.h"
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <wtf/text/CString.h>
namespace WebCore {
PassRefPtr<SharedBuffer> SharedBuffer::createWithContentsOfFile(const String& filePath)
{
if (filePath.isEmpty())
return 0;
CString filename = fileSystemRepresentation(filePath);
int fd = open(filename.data(), O_RDONLY);
if (fd == -1)
return 0;
struct stat fileStat;
if (fstat(fd, &fileStat)) {
close(fd);
return 0;
}
size_t bytesToRead = fileStat.st_size;
if (fileStat.st_size < 0 || bytesToRead != static_cast<unsigned long long>(fileStat.st_size)) {
close(fd);
return 0;
}
Vector<char> buffer(bytesToRead);
size_t totalBytesRead = 0;
ssize_t bytesRead;
while ((bytesRead = read(fd, buffer.data() + totalBytesRead, bytesToRead - totalBytesRead)) > 0)
totalBytesRead += bytesRead;
close(fd);
return totalBytesRead == bytesToRead ? SharedBuffer::adoptVector(buffer) : 0;
}
} // namespace WebCore
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