michael@0: // Copyright (c) 2010, Google Inc.
michael@0: // All rights reserved.
michael@0: //
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: // notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: // copyright notice, this list of conditions and the following disclaimer
michael@0: // in the documentation and/or other materials provided with the
michael@0: // distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: // contributors may be used to endorse or promote products derived from
michael@0: // this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: #include <arpa/inet.h>
michael@0: #include <limits.h>
michael@0: 
michael@0: #include <string>
michael@0: #include <vector>
michael@0: 
michael@0: #include "common/using_std_string.h"
michael@0: #include "processor/binarystream.h"
michael@0: 
michael@0: namespace google_breakpad {
michael@0: using std::vector;
michael@0: 
michael@0: binarystream &binarystream::operator>>(string &str) {
michael@0:   uint16_t length;
michael@0:   *this >> length;
michael@0:   if (eof())
michael@0:     return *this;
michael@0:   if (length == 0) {
michael@0:     str.clear();
michael@0:     return *this;
michael@0:   }
michael@0:   vector<char> buffer(length);
michael@0:   stream_.read(&buffer[0], length);
michael@0:   if (!eof())
michael@0:     str.assign(&buffer[0], length);
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator>>(uint8_t &u8) {
michael@0:   stream_.read((char *)&u8, 1);
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator>>(uint16_t &u16) {
michael@0:   uint16_t temp;
michael@0:   stream_.read((char *)&temp, 2);
michael@0:   if (!eof())
michael@0:     u16 = ntohs(temp);
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator>>(uint32_t &u32) {
michael@0:   uint32_t temp;
michael@0:   stream_.read((char *)&temp, 4);
michael@0:   if (!eof())
michael@0:     u32 = ntohl(temp);
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator>>(uint64_t &u64) {
michael@0:   uint32_t lower, upper;
michael@0:   *this >> lower >> upper;
michael@0:   if (!eof())
michael@0:     u64 = static_cast<uint64_t>(lower) | (static_cast<uint64_t>(upper) << 32);
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator<<(const string &str) {
michael@0:   if (str.length() > USHRT_MAX) {
michael@0:     // truncate to 16-bit length
michael@0:     *this << static_cast<uint16_t>(USHRT_MAX);
michael@0:     stream_.write(str.c_str(), USHRT_MAX);
michael@0:   } else {
michael@0:     *this << (uint16_t)(str.length() & 0xFFFF);
michael@0:     stream_.write(str.c_str(), str.length());
michael@0:   }
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator<<(uint8_t u8) {
michael@0:   stream_.write((const char*)&u8, 1);
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator<<(uint16_t u16) {
michael@0:   u16 = htons(u16);
michael@0:   stream_.write((const char*)&u16, 2);
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator<<(uint32_t u32) {
michael@0:   u32 = htonl(u32);
michael@0:   stream_.write((const char*)&u32, 4);
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: binarystream &binarystream::operator<<(uint64_t u64) {
michael@0:   // write 64-bit ints as two 32-bit ints, so we can byte-swap them easily
michael@0:   uint32_t lower = static_cast<uint32_t>(u64 & 0xFFFFFFFF);
michael@0:   uint32_t upper = static_cast<uint32_t>(u64 >> 32);
michael@0:   *this << lower << upper;
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: }  // namespace google_breakpad