| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| /* vim: set ts=2 et sw=2 tw=80: */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| #include "tls_parser.h" |
| |
| namespace nss_test { |
| |
| bool TlsParser::Read(uint8_t* val) { |
| if (remaining() < 1) { |
| return false; |
| } |
| *val = *ptr(); |
| consume(1); |
| return true; |
| } |
| |
| bool TlsParser::Read(uint32_t* val, size_t size) { |
| if (size > sizeof(uint32_t)) { |
| return false; |
| } |
| |
| uint32_t v = 0; |
| for (size_t i = 0; i < size; ++i) { |
| uint8_t tmp; |
| if (!Read(&tmp)) { |
| return false; |
| } |
| |
| v = (v << 8) | tmp; |
| } |
| |
| *val = v; |
| return true; |
| } |
| |
| bool TlsParser::Read(DataBuffer* val, size_t len) { |
| if (remaining() < len) { |
| return false; |
| } |
| |
| val->Assign(ptr(), len); |
| consume(len); |
| return true; |
| } |
| |
| bool TlsParser::ReadFromMark(DataBuffer* val, size_t len, size_t mark) { |
| auto saved = offset_; |
| offset_ = mark; |
| |
| if (remaining() < len) { |
| offset_ = saved; |
| return false; |
| } |
| |
| val->Assign(ptr(), len); |
| |
| offset_ = saved; |
| return true; |
| } |
| |
| bool TlsParser::ReadVariable(DataBuffer* val, size_t len_size) { |
| uint32_t len; |
| if (!Read(&len, len_size)) { |
| return false; |
| } |
| return Read(val, len); |
| } |
| |
| bool TlsParser::Skip(size_t len) { |
| if (len > remaining()) { |
| return false; |
| } |
| consume(len); |
| return true; |
| } |
| |
| bool TlsParser::SkipVariable(size_t len_size) { |
| uint32_t len; |
| if (!Read(&len, len_size)) { |
| return false; |
| } |
| return Skip(len); |
| } |
| |
| } // namespace nss_test |