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master
cpputil/tls_parser.cc
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EKR
Bug 1446643 - Update to TLS 1.3 draft-26. r=mt
17 мар 2018, 18:34
17 мар 2018, 18:34
59e04c7
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/* -*- 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