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https://github.com/tomahawk-player/tomahawk.git
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124 lines
3.7 KiB
C++
124 lines
3.7 KiB
C++
// Copyright (c) 2010, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <arpa/inet.h>
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#include <limits.h>
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#include <vector>
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#include "processor/binarystream.h"
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namespace google_breakpad {
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using std::string;
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using std::vector;
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binarystream &binarystream::operator>>(std::string &str) {
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u_int16_t length;
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*this >> length;
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if (eof())
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return *this;
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if (length == 0) {
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str.clear();
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return *this;
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}
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vector<char> buffer(length);
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stream_.read(&buffer[0], length);
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if (!eof())
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str.assign(&buffer[0], length);
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return *this;
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}
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binarystream &binarystream::operator>>(u_int8_t &u8) {
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stream_.read((char *)&u8, 1);
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return *this;
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}
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binarystream &binarystream::operator>>(u_int16_t &u16) {
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u_int16_t temp;
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stream_.read((char *)&temp, 2);
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if (!eof())
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u16 = ntohs(temp);
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return *this;
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}
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binarystream &binarystream::operator>>(u_int32_t &u32) {
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u_int32_t temp;
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stream_.read((char *)&temp, 4);
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if (!eof())
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u32 = ntohl(temp);
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return *this;
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}
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binarystream &binarystream::operator>>(u_int64_t &u64) {
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u_int32_t lower, upper;
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*this >> lower >> upper;
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if (!eof())
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u64 = static_cast<u_int64_t>(lower) | (static_cast<u_int64_t>(upper) << 32);
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return *this;
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}
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binarystream &binarystream::operator<<(const std::string &str) {
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if (str.length() > USHRT_MAX) {
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// truncate to 16-bit length
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*this << static_cast<u_int16_t>(USHRT_MAX);
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stream_.write(str.c_str(), USHRT_MAX);
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} else {
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*this << (u_int16_t)(str.length() & 0xFFFF);
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stream_.write(str.c_str(), str.length());
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}
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return *this;
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}
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binarystream &binarystream::operator<<(u_int8_t u8) {
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stream_.write((const char*)&u8, 1);
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return *this;
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}
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binarystream &binarystream::operator<<(u_int16_t u16) {
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u16 = htons(u16);
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stream_.write((const char*)&u16, 2);
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return *this;
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}
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binarystream &binarystream::operator<<(u_int32_t u32) {
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u32 = htonl(u32);
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stream_.write((const char*)&u32, 4);
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return *this;
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}
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binarystream &binarystream::operator<<(u_int64_t u64) {
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// write 64-bit ints as two 32-bit ints, so we can byte-swap them easily
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u_int32_t lower = static_cast<u_int32_t>(u64 & 0xFFFFFFFF);
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u_int32_t upper = static_cast<u_int32_t>(u64 >> 32);
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*this << lower << upper;
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return *this;
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}
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} // namespace google_breakpad
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