toolkit/crashreporter/google-breakpad/src/processor/binarystream.cc@b8a032363ba2 (annotated)
toolkit/crashreporter/google-breakpad/src/processor/binarystream.cc
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | // Copyright (c) 2010, Google Inc. |
| michael@0 | 2 | // All rights reserved. |
| michael@0 | 3 | // |
| michael@0 | 4 | // Redistribution and use in source and binary forms, with or without |
| michael@0 | 5 | // modification, are permitted provided that the following conditions are |
| michael@0 | 6 | // met: |
| michael@0 | 7 | // |
| michael@0 | 8 | // * Redistributions of source code must retain the above copyright |
| michael@0 | 9 | // notice, this list of conditions and the following disclaimer. |
| michael@0 | 10 | // * Redistributions in binary form must reproduce the above |
| michael@0 | 11 | // copyright notice, this list of conditions and the following disclaimer |
| michael@0 | 12 | // in the documentation and/or other materials provided with the |
| michael@0 | 13 | // distribution. |
| michael@0 | 14 | // * Neither the name of Google Inc. nor the names of its |
| michael@0 | 15 | // contributors may be used to endorse or promote products derived from |
| michael@0 | 16 | // this software without specific prior written permission. |
| michael@0 | 17 | // |
| michael@0 | 18 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 19 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 20 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 21 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| michael@0 | 22 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| michael@0 | 23 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| michael@0 | 24 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| michael@0 | 25 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| michael@0 | 26 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 27 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| michael@0 | 28 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 29 | |
| michael@0 | 30 | #include <arpa/inet.h> |
| michael@0 | 31 | #include <limits.h> |
| michael@0 | 32 | |
| michael@0 | 33 | #include <string> |
| michael@0 | 34 | #include <vector> |
| michael@0 | 35 | |
| michael@0 | 36 | #include "common/using_std_string.h" |
| michael@0 | 37 | #include "processor/binarystream.h" |
| michael@0 | 38 | |
| michael@0 | 39 | namespace google_breakpad { |
| michael@0 | 40 | using std::vector; |
| michael@0 | 41 | |
| michael@0 | 42 | binarystream &binarystream::operator>>(string &str) { |
| michael@0 | 43 | uint16_t length; |
| michael@0 | 44 | *this >> length; |
| michael@0 | 45 | if (eof()) |
| michael@0 | 46 | return *this; |
| michael@0 | 47 | if (length == 0) { |
| michael@0 | 48 | str.clear(); |
| michael@0 | 49 | return *this; |
| michael@0 | 50 | } |
| michael@0 | 51 | vector<char> buffer(length); |
| michael@0 | 52 | stream_.read(&buffer[0], length); |
| michael@0 | 53 | if (!eof()) |
| michael@0 | 54 | str.assign(&buffer[0], length); |
| michael@0 | 55 | return *this; |
| michael@0 | 56 | } |
| michael@0 | 57 | |
| michael@0 | 58 | binarystream &binarystream::operator>>(uint8_t &u8) { |
| michael@0 | 59 | stream_.read((char *)&u8, 1); |
| michael@0 | 60 | return *this; |
| michael@0 | 61 | } |
| michael@0 | 62 | |
| michael@0 | 63 | binarystream &binarystream::operator>>(uint16_t &u16) { |
| michael@0 | 64 | uint16_t temp; |
| michael@0 | 65 | stream_.read((char *)&temp, 2); |
| michael@0 | 66 | if (!eof()) |
| michael@0 | 67 | u16 = ntohs(temp); |
| michael@0 | 68 | return *this; |
| michael@0 | 69 | } |
| michael@0 | 70 | |
| michael@0 | 71 | binarystream &binarystream::operator>>(uint32_t &u32) { |
| michael@0 | 72 | uint32_t temp; |
| michael@0 | 73 | stream_.read((char *)&temp, 4); |
| michael@0 | 74 | if (!eof()) |
| michael@0 | 75 | u32 = ntohl(temp); |
| michael@0 | 76 | return *this; |
| michael@0 | 77 | } |
| michael@0 | 78 | |
| michael@0 | 79 | binarystream &binarystream::operator>>(uint64_t &u64) { |
| michael@0 | 80 | uint32_t lower, upper; |
| michael@0 | 81 | *this >> lower >> upper; |
| michael@0 | 82 | if (!eof()) |
| michael@0 | 83 | u64 = static_cast<uint64_t>(lower) | (static_cast<uint64_t>(upper) << 32); |
| michael@0 | 84 | return *this; |
| michael@0 | 85 | } |
| michael@0 | 86 | |
| michael@0 | 87 | binarystream &binarystream::operator<<(const string &str) { |
| michael@0 | 88 | if (str.length() > USHRT_MAX) { |
| michael@0 | 89 | // truncate to 16-bit length |
| michael@0 | 90 | *this << static_cast<uint16_t>(USHRT_MAX); |
| michael@0 | 91 | stream_.write(str.c_str(), USHRT_MAX); |
| michael@0 | 92 | } else { |
| michael@0 | 93 | *this << (uint16_t)(str.length() & 0xFFFF); |
| michael@0 | 94 | stream_.write(str.c_str(), str.length()); |
| michael@0 | 95 | } |
| michael@0 | 96 | return *this; |
| michael@0 | 97 | } |
| michael@0 | 98 | |
| michael@0 | 99 | binarystream &binarystream::operator<<(uint8_t u8) { |
| michael@0 | 100 | stream_.write((const char*)&u8, 1); |
| michael@0 | 101 | return *this; |
| michael@0 | 102 | } |
| michael@0 | 103 | |
| michael@0 | 104 | binarystream &binarystream::operator<<(uint16_t u16) { |
| michael@0 | 105 | u16 = htons(u16); |
| michael@0 | 106 | stream_.write((const char*)&u16, 2); |
| michael@0 | 107 | return *this; |
| michael@0 | 108 | } |
| michael@0 | 109 | |
| michael@0 | 110 | binarystream &binarystream::operator<<(uint32_t u32) { |
| michael@0 | 111 | u32 = htonl(u32); |
| michael@0 | 112 | stream_.write((const char*)&u32, 4); |
| michael@0 | 113 | return *this; |
| michael@0 | 114 | } |
| michael@0 | 115 | |
| michael@0 | 116 | binarystream &binarystream::operator<<(uint64_t u64) { |
| michael@0 | 117 | // write 64-bit ints as two 32-bit ints, so we can byte-swap them easily |
| michael@0 | 118 | uint32_t lower = static_cast<uint32_t>(u64 & 0xFFFFFFFF); |
| michael@0 | 119 | uint32_t upper = static_cast<uint32_t>(u64 >> 32); |
| michael@0 | 120 | *this << lower << upper; |
| michael@0 | 121 | return *this; |
| michael@0 | 122 | } |
| michael@0 | 123 | |
| michael@0 | 124 | } // namespace google_breakpad |
