1 /* 2 * Copyright (C) 2010 Company 100, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "SharedBuffer.h" 28 29 #include "FileSystem.h" 30 31 #include <fcntl.h> 32 #include <sys/stat.h> 33 #include <unistd.h> 34 #include <wtf/text/CString.h> 35 36 namespace WebCore { 37 38 PassRefPtr<SharedBuffer> SharedBuffer::createWithContentsOfFile(const String& filePath) 39 { 40 if (filePath.isEmpty()) 41 return 0; 42 43 CString filename = fileSystemRepresentation(filePath); 44 int fd = open(filename.data(), O_RDONLY); 45 if (fd == -1) 46 return 0; 47 48 struct stat fileStat; 49 if (fstat(fd, &fileStat)) { 50 close(fd); 51 return 0; 52 } 53 54 size_t bytesToRead = fileStat.st_size; 55 if (bytesToRead != fileStat.st_size) { 56 close(fd); 57 return 0; 58 } 59 60 RefPtr<SharedBuffer> result = create(); 61 result->m_buffer.grow(bytesToRead); 62 63 size_t totalBytesRead = 0; 64 ssize_t bytesRead; 65 while ((bytesRead = read(fd, result->m_buffer.data() + totalBytesRead, bytesToRead - totalBytesRead)) > 0) 66 totalBytesRead += bytesRead; 67 68 close(fd); 69 70 return totalBytesRead == bytesToRead ? result.release() : 0; 71 } 72 73 } // namespace WebCore 74
