mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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676eaf13b4
--HG-- rename : security/insanity/include/insanity/ScopedPtr.h => security/pkix/include/pkix/ScopedPtr.h rename : security/insanity/include/insanity/bind.h => security/pkix/include/pkix/bind.h rename : security/insanity/include/insanity/nullptr.h => security/pkix/include/pkix/nullptr.h rename : security/insanity/include/insanity/pkix.h => security/pkix/include/pkix/pkix.h rename : security/insanity/include/insanity/pkixtypes.h => security/pkix/include/pkix/pkixtypes.h rename : security/insanity/lib/pkixbind.cpp => security/pkix/lib/pkixbind.cpp rename : security/insanity/lib/pkixbuild.cpp => security/pkix/lib/pkixbuild.cpp rename : security/insanity/lib/pkixcheck.cpp => security/pkix/lib/pkixcheck.cpp rename : security/insanity/lib/pkixcheck.h => security/pkix/lib/pkixcheck.h rename : security/insanity/lib/pkixder.cpp => security/pkix/lib/pkixder.cpp rename : security/insanity/lib/pkixder.h => security/pkix/lib/pkixder.h rename : security/insanity/lib/pkixkey.cpp => security/pkix/lib/pkixkey.cpp rename : security/insanity/lib/pkixocsp.cpp => security/pkix/lib/pkixocsp.cpp rename : security/insanity/lib/pkixutil.h => security/pkix/lib/pkixutil.h rename : security/insanity/moz.build => security/pkix/moz.build rename : security/insanity/test/lib/moz.build => security/pkix/test/lib/moz.build rename : security/insanity/test/lib/pkixtestutil.cpp => security/pkix/test/lib/pkixtestutil.cpp rename : security/insanity/test/lib/pkixtestutil.h => security/pkix/test/lib/pkixtestutil.h
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* Copyright 2013 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "pkixder.h"
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namespace mozilla { namespace pkix { namespace der {
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// not inline
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Result
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Fail(PRErrorCode errorCode)
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{
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PR_SetError(errorCode, 0);
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return Failure;
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}
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// Too complicated to be inline
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Result
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ExpectTagAndGetLength(Input& input, uint8_t expectedTag, uint16_t& length)
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{
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PR_ASSERT((expectedTag & 0x1F) != 0x1F); // high tag number form not allowed
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uint8_t tag;
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if (input.Read(tag) != Success) {
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return Failure;
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}
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if (tag != expectedTag) {
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return Fail(SEC_ERROR_BAD_DER);
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}
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// The short form of length is a single byte with the high order bit set
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// to zero. The long form of length is one byte with the high order bit
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// set, followed by N bytes, where N is encoded in the lowest 7 bits of
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// the first byte.
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uint8_t length1;
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if (input.Read(length1) != Success) {
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return Failure;
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}
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if (!(length1 & 0x80)) {
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length = length1;
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} else if (length1 == 0x81) {
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uint8_t length2;
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if (input.Read(length2) != Success) {
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return Failure;
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}
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if (length2 < 128) {
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// Not shortest possible encoding
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return Fail(SEC_ERROR_BAD_DER);
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}
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length = length2;
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} else if (length1 == 0x82) {
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if (input.Read(length) != Success) {
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return Failure;
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}
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if (length < 256) {
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// Not shortest possible encoding
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return Fail(SEC_ERROR_BAD_DER);
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}
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} else {
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// We don't support lengths larger than 2^16 - 1.
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return Fail(SEC_ERROR_BAD_DER);
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}
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return Success;
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}
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} } } // namespace mozilla::pkix::der
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