binaryninja-api/json/jsoncpp.cpp at dev · Vector35/binaryninja-api · GitHub

History

5458 lines (4931 loc) · 159 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

716

717

718

719

720

721

722

723

724

725

726

727

728

729

730

731

732

733

734

735

736

737

738

739

740

741

742

743

744

745

746

747

748

749

750

751

752

753

754

755

756

757

758

759

760

761

762

763

764

765

766

767

768

769

770

771

772

773

774

775

776

777

778

779

780

781

782

783

784

785

786

787

788

789

790

791

792

793

794

795

796

797

798

799

800

801

802

803

804

805

806

807

808

809

810

811

812

813

814

815

816

817

818

819

820

821

822

823

824

825

826

827

828

829

830

831

832

833

834

835

836

837

838

839

840

841

842

843

844

845

846

847

848

849

850

851

852

853

854

855

856

857

858

859

860

861

862

863

864

865

866

867

868

869

870

871

872

873

874

875

876

877

878

879

880

881

882

883

884

885

886

887

888

889

890

891

892

893

894

895

896

897

898

899

900

901

902

903

904

905

906

907

908

909

910

911

912

913

914

915

916

917

918

919

920

921

922

923

924

925

926

927

928

929

930

931

932

933

934

935

936

937

938

939

940

941

942

943

944

945

946

947

948

949

950

951

952

953

954

955

956

957

958

959

960

961

962

963

964

965

966

967

968

969

970

971

972

973

974

975

976

977

978

979

980

981

982

983

984

985

986

987

988

989

990

991

992

993

994

995

996

997

998

999

1000

/// Json-cpp amalgamated source (http://jsoncpp.sourceforge.net/).

/// It is intended to be used with #include "json/json.h"

// //////////////////////////////////////////////////////////////////////

// Beginning of content of file: LICENSE

// //////////////////////////////////////////////////////////////////////

The JsonCpp library's source code, including accompanying documentation,

tests and demonstration applications, are licensed under the following

conditions...

Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all

jurisdictions which recognize such a disclaimer. In such jurisdictions,

this software is released into the Public Domain.

In jurisdictions which do not recognize Public Domain property (e.g. Germany as of

The JsonCpp Authors, and is released under the terms of the MIT License (see below).

In jurisdictions which recognize Public Domain property, the user of this

software may choose to accept it either as 1) Public Domain, 2) under the

conditions of the MIT License (see below), or 3) under the terms of dual

Public Domain/MIT License conditions described here, as they choose.

The MIT License is about as close to Public Domain as a license can get, and is

described in clear, concise terms at:

http://en.wikipedia.org/wiki/MIT_License

The full text of the MIT License follows:

========================================================================

Permission is hereby granted, free of charge, to any person

obtaining a copy of this software and associated documentation

files (the "Software"), to deal in the Software without

restriction, including without limitation the rights to use, copy,

modify, merge, publish, distribute, sublicense, and/or sell copies

of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be

included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

SOFTWARE.

========================================================================

(END LICENSE TEXT)

The MIT license is compatible with both the GPL and commercial

software, affording one all of the rights of Public Domain with the

minor nuisance of being required to keep the above copyright notice

and license text in the source code. Note also that by accepting the

Public Domain "license" you can re-license your copy using whatever

license you like.

// //////////////////////////////////////////////////////////////////////

// End of content of file: LICENSE

// //////////////////////////////////////////////////////////////////////

#ifdef BINARYNINJACORE_LIBRARY

#include "binaryninjacore_global.h"

#endif

#include "json/json.h"

#ifndef JSON_IS_AMALGAMATION

#error "Compile with -I PATH_TO_JSON_DIRECTORY"

#endif

// //////////////////////////////////////////////////////////////////////

// Beginning of content of file: src/lib_json/json_tool.h

// //////////////////////////////////////////////////////////////////////

// Distributed under MIT license, or public domain if desired and

// recognized in your jurisdiction.

// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE

#ifndef LIB_JSONCPP_JSON_TOOL_H_INCLUDED

#define LIB_JSONCPP_JSON_TOOL_H_INCLUDED

#ifndef JSON_CONFIG_H_INCLUDED

#include <json/config.h>

#endif

// Also support old flag NO_LOCALE_SUPPORT

#ifdef NO_LOCALE_SUPPORT

#define JSONCPP_NO_LOCALE_SUPPORT

#endif

#ifndef JSONCPP_NO_LOCALE_SUPPORT

#include <clocale>

#endif

/* This header provides common string manipulation support, such as UTF-8,

* portable conversion from/to string...

* It is an internal header that must not be exposed.

namespace Json {

JSONCPP_INLINE_NS_BEGIN

static inline char getDecimalPoint() {

#ifdef JSONCPP_NO_LOCALE_SUPPORT

return '\0';

#else

struct lconv* lc = localeconv();

return lc ? *(lc->decimal_point) : '\0';

#endif

}

/// Converts a unicode code-point to UTF-8.

static inline JSONCPP_STRING codePointToUTF8(unsigned int cp) {

JSONCPP_STRING result;

// based on description from http://en.wikipedia.org/wiki/UTF-8

if (cp <= 0x7f) {

result.resize(1);

result[0] = static_cast<char>(cp);

} else if (cp <= 0x7FF) {

result.resize(2);

result[1] = static_cast<char>(0x80 | (0x3f & cp));

result[0] = static_cast<char>(0xC0 | (0x1f & (cp >> 6)));

} else if (cp <= 0xFFFF) {

result.resize(3);

result[2] = static_cast<char>(0x80 | (0x3f & cp));

result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));

result[0] = static_cast<char>(0xE0 | (0xf & (cp >> 12)));

} else if (cp <= 0x10FFFF) {

result.resize(4);

result[3] = static_cast<char>(0x80 | (0x3f & cp));

result[2] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));

result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 12)));

result[0] = static_cast<char>(0xF0 | (0x7 & (cp >> 18)));

}

return result;

}

enum {

/// Constant that specify the size of the buffer that must be passed to

/// uintToString.

uintToStringBufferSize = 3 * sizeof(LargestUInt) + 1

};

// Defines a char buffer for use with uintToString().

typedef char UIntToStringBuffer[uintToStringBufferSize];

/** Converts an unsigned integer to string.

* @param value Unsigned integer to convert to string

* @param current Input/Output string buffer.

* Must have at least uintToStringBufferSize chars free.

static inline void uintToString(LargestUInt value, char*& current) {

*--current = 0;

do {

*--current = static_cast<char>(value % 10U + static_cast<unsigned>('0'));

value /= 10;

} while (value != 0);

}

/** Change ',' to '.' everywhere in buffer.

* We had a sophisticated way, but it did not work in WinCE.

* @see https://github.com/open-source-parsers/jsoncpp/pull/9

template <typename Iter> Iter fixNumericLocale(Iter begin, Iter end) {

for (; begin != end; ++begin) {

if (*begin == ',') {

*begin = '.';

}

return begin;

}

template <typename Iter> void fixNumericLocaleInput(Iter begin, Iter end) {

char decimalPoint = getDecimalPoint();

if (decimalPoint == '\0' || decimalPoint == '.') {

return;

}

for (; begin != end; ++begin) {

if (*begin == '.') {

*begin = decimalPoint;

}

/**

* Return iterator that would be the new end of the range [begin,end), if we

* were to delete zeros in the end of string, but not the last zero before '.'.

template <typename Iter> Iter fixZerosInTheEnd(Iter begin, Iter end) {

for (; begin != end; --end) {

if (*(end - 1) != '0') {

return end;

}

// Don't delete the last zero before the decimal point.

if (begin != (end - 1) && *(end - 2) == '.') {

return end;

}

return end;

}

JSONCPP_INLINE_NS_END

} // namespace Json

#endif // LIB_JSONCPP_JSON_TOOL_H_INCLUDED

// //////////////////////////////////////////////////////////////////////

// End of content of file: src/lib_json/json_tool.h

// //////////////////////////////////////////////////////////////////////

// Beginning of content of file: src/lib_json/json_reader.cpp

// //////////////////////////////////////////////////////////////////////

// Distributed under MIT license, or public domain if desired and

// recognized in your jurisdiction.

// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE

#if !defined(JSON_IS_AMALGAMATION)

#include "json_tool.h"

#include <json/assertions.h>

#include <json/reader.h>

#include <json/value.h>

#endif // if !defined(JSON_IS_AMALGAMATION)

#include <cassert>

#include <cstring>

#include <istream>

#include <limits>

#include <memory>

#include <set>

#include <sstream>

#include <utility>

#if __cplusplus >= 201103L

#include <cstdio>

#if !defined(snprintf)

#define snprintf std::snprintf

#endif

#if !defined(sscanf)

#define sscanf std::sscanf

#endif

#else

#include <stdio.h>

#if defined(_MSC_VER)

#define _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES 1

#if !defined(snprintf)

#define snprintf _snprintf

#endif

#if defined(_MSC_VER) && _MSC_VER >= 1400 // VC++ 8.0

// Disable warning about strdup being deprecated.

#pragma warning(disable : 4996)

#endif

// Define JSONCPP_DEPRECATED_STACK_LIMIT as an appropriate integer at compile

// time to change the stack limit

#if !defined(JSONCPP_DEPRECATED_STACK_LIMIT)

#define JSONCPP_DEPRECATED_STACK_LIMIT 1000

#endif

static size_t const stackLimit_g =

JSONCPP_DEPRECATED_STACK_LIMIT; // see readValue()

namespace Json {

JSONCPP_INLINE_NS_BEGIN

#if __cplusplus >= 201103L || (defined(_CPPLIB_VER) && _CPPLIB_VER >= 520)

typedef std::unique_ptr<CharReader> CharReaderPtr;

#else

typedef std::auto_ptr<CharReader> CharReaderPtr;

#endif

// Implementation of class Features

// ////////////////////////////////

Features::Features()

: allowComments_(true), strictRoot_(false),

allowDroppedNullPlaceholders_(false), allowNumericKeys_(false) {}

Features Features::all() { return Features(); }

Features Features::strictMode() {

Features features;

features.allowComments_ = false;

features.strictRoot_ = true;

features.allowDroppedNullPlaceholders_ = false;

features.allowNumericKeys_ = false;

return features;

}

// Implementation of class Reader

// ////////////////////////////////

bool Reader::containsNewLine(Reader::Location begin, Reader::Location end) {

for (; begin < end; ++begin)

if (*begin == '\n' || *begin == '\r')

return true;

return false;

}

// Class Reader

// //////////////////////////////////////////////////////////////////

Reader::Reader()

: errors_(), document_(), begin_(), end_(), current_(), lastValueEnd_(),

lastValue_(), commentsBefore_(), features_(Features::all()),

collectComments_() {}

Reader::Reader(const Features& features)

: errors_(), document_(), begin_(), end_(), current_(), lastValueEnd_(),

lastValue_(), commentsBefore_(), features_(features), collectComments_() {

}

bool Reader::parse(const std::string& document,

Value& root,

bool collectComments) {

document_.assign(document.begin(), document.end());

const char* begin = document_.c_str();

const char* end = begin + document_.length();

return parse(begin, end, root, collectComments);

}

bool Reader::parse(std::istream& sin, Value& root, bool collectComments) {

// std::istream_iterator<char> begin(sin);

// std::istream_iterator<char> end;

// Those would allow streamed input from a file, if parse() were a

// template function.

// Since JSONCPP_STRING is reference-counted, this at least does not

// create an extra copy.

JSONCPP_STRING doc;

std::getline(sin, doc, (char)EOF);

return parse(doc.data(), doc.data() + doc.size(), root, collectComments);

}

bool Reader::parse(const char* beginDoc,

const char* endDoc,

Value& root,

bool collectComments) {

if (!features_.allowComments_) {

collectComments = false;

}

begin_ = beginDoc;

end_ = endDoc;

collectComments_ = collectComments;

current_ = begin_;

lastValueEnd_ = 0;

lastValue_ = 0;

commentsBefore_.clear();

errors_.clear();

while (!nodes_.empty())

nodes_.pop();

nodes_.push(&root);

bool successful = readValue();

Token token;

skipCommentTokens(token);

if (collectComments_ && !commentsBefore_.empty())

root.setComment(commentsBefore_, commentAfter);

if (features_.strictRoot_) {

if (!root.isArray() && !root.isObject()) {

// Set error location to start of doc, ideally should be first token found

// in doc

token.type_ = tokenError;

token.start_ = beginDoc;

token.end_ = endDoc;

addError(

"A valid JSON document must be either an array or an object value.",

token);

return false;

}

return successful;

}

bool Reader::readValue() {

// readValue() may call itself only if it calls readObject() or ReadArray().

// These methods execute nodes_.push() just before and nodes_.pop)() just

// after calling readValue(). parse() executes one nodes_.push(), so > instead

// of >=.

if (nodes_.size() > stackLimit_g)

throwRuntimeError("Exceeded stackLimit in readValue().");

Token token;

skipCommentTokens(token);

bool successful = true;

if (collectComments_ && !commentsBefore_.empty()) {

currentValue().setComment(commentsBefore_, commentBefore);

commentsBefore_.clear();

}

switch (token.type_) {

case tokenObjectBegin:

successful = readObject(token);

currentValue().setOffsetLimit(current_ - begin_);

break;

case tokenArrayBegin:

successful = readArray(token);

currentValue().setOffsetLimit(current_ - begin_);

break;

case tokenNumber:

successful = decodeNumber(token);

break;

case tokenString:

successful = decodeString(token);

break;

case tokenTrue: {

Value v(true);

currentValue().swapPayload(v);

currentValue().setOffsetStart(token.start_ - begin_);

currentValue().setOffsetLimit(token.end_ - begin_);

} break;

case tokenFalse: {

Value v(false);

currentValue().swapPayload(v);

currentValue().setOffsetStart(token.start_ - begin_);

currentValue().setOffsetLimit(token.end_ - begin_);

} break;

case tokenNull: {

Value v;

currentValue().swapPayload(v);

currentValue().setOffsetStart(token.start_ - begin_);

currentValue().setOffsetLimit(token.end_ - begin_);

} break;

case tokenArraySeparator:

case tokenObjectEnd:

case tokenArrayEnd:

if (features_.allowDroppedNullPlaceholders_) {

// "Un-read" the current token and mark the current value as a null

// token.

current_--;

Value v;

currentValue().swapPayload(v);

currentValue().setOffsetStart(current_ - begin_ - 1);

currentValue().setOffsetLimit(current_ - begin_);

break;

} // Else, fall through...

default:

currentValue().setOffsetStart(token.start_ - begin_);

currentValue().setOffsetLimit(token.end_ - begin_);

return addError("Syntax error: value, object or array expected.", token);

}

if (collectComments_) {

lastValueEnd_ = current_;

lastValue_ = &currentValue();

}

return successful;

}

void Reader::skipCommentTokens(Token& token) {

if (features_.allowComments_) {

do {

readToken(token);

} while (token.type_ == tokenComment);

} else {

readToken(token);

}

bool Reader::readToken(Token& token) {

skipSpaces();

token.start_ = current_;

Char c = getNextChar();

bool ok = true;

switch (c) {

case '{':

token.type_ = tokenObjectBegin;

break;

case '}':

token.type_ = tokenObjectEnd;

break;

case '[':

token.type_ = tokenArrayBegin;

break;

case ']':

token.type_ = tokenArrayEnd;

break;

case '"':

token.type_ = tokenString;

ok = readString();

break;

case '/':

token.type_ = tokenComment;

ok = readComment();

break;

case '0':

case '1':

case '2':

case '3':

case '4':

case '5':

case '6':

case '7':

case '8':

case '9':

case '-':

token.type_ = tokenNumber;

readNumber();

break;

case 't':

token.type_ = tokenTrue;

ok = match("rue", 3);

break;

case 'f':

token.type_ = tokenFalse;

ok = match("alse", 4);

break;

case 'n':

token.type_ = tokenNull;

ok = match("ull", 3);

break;

case ',':

token.type_ = tokenArraySeparator;

break;

case ':':

token.type_ = tokenMemberSeparator;

break;

case 0:

token.type_ = tokenEndOfStream;

break;

default:

ok = false;

break;

}

if (!ok)

token.type_ = tokenError;

token.end_ = current_;

return true;

}

void Reader::skipSpaces() {

while (current_ != end_) {

Char c = *current_;

if (c == ' ' || c == '\t' || c == '\r' || c == '\n')

++current_;

else

break;

}

bool Reader::match(Location pattern, int patternLength) {

if (end_ - current_ < patternLength)

return false;

int index = patternLength;

while (index--)

if (current_[index] != pattern[index])

return false;

current_ += patternLength;

return true;

}

bool Reader::readComment() {

Location commentBegin = current_ - 1;

Char c = getNextChar();

bool successful = false;

if (c == '*')

successful = readCStyleComment();

else if (c == '/')

successful = readCppStyleComment();

if (!successful)

return false;

if (collectComments_) {

CommentPlacement placement = commentBefore;

if (lastValueEnd_ && !containsNewLine(lastValueEnd_, commentBegin)) {

if (c != '*' || !containsNewLine(commentBegin, current_))

placement = commentAfterOnSameLine;

}

addComment(commentBegin, current_, placement);

}

return true;

}

JSONCPP_STRING Reader::normalizeEOL(Reader::Location begin,

Reader::Location end) {

JSONCPP_STRING normalized;

normalized.reserve(static_cast<size_t>(end - begin));

Reader::Location current = begin;

while (current != end) {

char c = *current++;

if (c == '\r') {

if (current != end && *current == '\n')

// convert dos EOL

++current;

// convert Mac EOL

normalized += '\n';

} else {

normalized += c;

}

return normalized;

}

void Reader::addComment(Location begin,

Location end,

CommentPlacement placement) {

assert(collectComments_);

const JSONCPP_STRING& normalized = normalizeEOL(begin, end);

if (placement == commentAfterOnSameLine) {

assert(lastValue_ != 0);

lastValue_->setComment(normalized, placement);

} else {

commentsBefore_ += normalized;

}

bool Reader::readCStyleComment() {

while ((current_ + 1) < end_) {

Char c = getNextChar();

if (c == '*' && *current_ == '/')

break;

}

return getNextChar() == '/';

}

bool Reader::readCppStyleComment() {

while (current_ != end_) {

Char c = getNextChar();

if (c == '\n')

break;

if (c == '\r') {

// Consume DOS EOL. It will be normalized in addComment.

if (current_ != end_ && *current_ == '\n')

getNextChar();

// Break on Moc OS 9 EOL.

break;

}

return true;

}

void Reader::readNumber() {

const char* p = current_;

char c = '0'; // stopgap for already consumed character

// integral part

while (c >= '0' && c <= '9')

c = (current_ = p) < end_ ? *p++ : '\0';

// fractional part

if (c == '.') {

c = (current_ = p) < end_ ? *p++ : '\0';

while (c >= '0' && c <= '9')

c = (current_ = p) < end_ ? *p++ : '\0';

}

// exponential part

if (c == 'e' || c == 'E') {

c = (current_ = p) < end_ ? *p++ : '\0';

if (c == '+' || c == '-')

c = (current_ = p) < end_ ? *p++ : '\0';

while (c >= '0' && c <= '9')

c = (current_ = p) < end_ ? *p++ : '\0';

}

bool Reader::readString() {

Char c = '\0';

while (current_ != end_) {

c = getNextChar();

if (c == '\\')

getNextChar();

else if (c == '"')

break;

}

return c == '"';

}

bool Reader::readObject(Token& tokenStart) {

Token tokenName;

JSONCPP_STRING name;

Value init(objectValue);

currentValue().swapPayload(init);

currentValue().setOffsetStart(tokenStart.start_ - begin_);

while (readToken(tokenName)) {

bool initialTokenOk = true;

while (tokenName.type_ == tokenComment && initialTokenOk)

initialTokenOk = readToken(tokenName);

if (!initialTokenOk)

break;

if (tokenName.type_ == tokenObjectEnd && name.empty()) // empty object

return true;

name.clear();

if (tokenName.type_ == tokenString) {

if (!decodeString(tokenName, name))

return recoverFromError(tokenObjectEnd);

} else if (tokenName.type_ == tokenNumber && features_.allowNumericKeys_) {

Value numberName;

if (!decodeNumber(tokenName, numberName))

return recoverFromError(tokenObjectEnd);

name = JSONCPP_STRING(numberName.asCString());

} else {

break;

}

Token colon;

if (!readToken(colon) || colon.type_ != tokenMemberSeparator) {

return addErrorAndRecover("Missing ':' after object member name", colon,

tokenObjectEnd);

}

Value& value = currentValue()[name];

nodes_.push(&value);

bool ok = readValue();

nodes_.pop();

if (!ok) // error already set

return recoverFromError(tokenObjectEnd);

Token comma;

if (!readToken(comma) ||

(comma.type_ != tokenObjectEnd && comma.type_ != tokenArraySeparator &&

comma.type_ != tokenComment)) {

return addErrorAndRecover("Missing ',' or '}' in object declaration",

comma, tokenObjectEnd);

}

bool finalizeTokenOk = true;

while (comma.type_ == tokenComment && finalizeTokenOk)

finalizeTokenOk = readToken(comma);

if (comma.type_ == tokenObjectEnd)

return true;

}

return addErrorAndRecover("Missing '}' or object member name", tokenName,

tokenObjectEnd);

}

bool Reader::readArray(Token& tokenStart) {

Value init(arrayValue);

currentValue().swapPayload(init);

currentValue().setOffsetStart(tokenStart.start_ - begin_);

skipSpaces();

if (current_ != end_ && *current_ == ']') // empty array

{

Token endArray;

readToken(endArray);

return true;

}

int index = 0;

for (;;) {

Value& value = currentValue()[index++];

nodes_.push(&value);

bool ok = readValue();

nodes_.pop();

if (!ok) // error already set

return recoverFromError(tokenArrayEnd);

Token token;

// Accept Comment after last item in the array.

ok = readToken(token);

while (token.type_ == tokenComment && ok) {

ok = readToken(token);

}

bool badTokenType =

(token.type_ != tokenArraySeparator && token.type_ != tokenArrayEnd);

if (!ok || badTokenType) {

return addErrorAndRecover("Missing ',' or ']' in array declaration",

token, tokenArrayEnd);

}

if (token.type_ == tokenArrayEnd)

break;

}

return true;

}

bool Reader::decodeNumber(Token& token) {

Value decoded;

if (!decodeNumber(token, decoded))

return false;

currentValue().swapPayload(decoded);

currentValue().setOffsetStart(token.start_ - begin_);

currentValue().setOffsetLimit(token.end_ - begin_);

return true;

}

bool Reader::decodeNumber(Token& token, Value& decoded) {

// Attempts to parse the number as an integer. If the number is

// larger than the maximum supported value of an integer then

// we decode the number as a double.

Location current = token.start_;

bool isNegative = *current == '-';

if (isNegative)

++current;

// TODO: Help the compiler do the div and mod at compile time or get rid of

// them.

Value::LargestUInt maxIntegerValue =

isNegative ? Value::LargestUInt(Value::maxLargestInt) + 1

: Value::maxLargestUInt;

Value::LargestUInt threshold = maxIntegerValue / 10;

Value::LargestUInt value = 0;

while (current < token.end_) {

Char c = *current++;

if (c < '0' || c > '9')

return decodeDouble(token, decoded);

Value::UInt digit(static_cast<Value::UInt>(c - '0'));

if (value >= threshold) {

// We've hit or exceeded the max value divided by 10 (rounded down). If

// a) we've only just touched the limit, b) this is the last digit, and

// c) it's small enough to fit in that rounding delta, we're okay.

// Otherwise treat this number as a double to avoid overflow.

if (value > threshold || current != token.end_ ||

digit > maxIntegerValue % 10) {

return decodeDouble(token, decoded);

}

value = value * 10 + digit;

}

if (isNegative && value == maxIntegerValue)

decoded = Value::minLargestInt;

else if (isNegative)

decoded = -Value::LargestInt(value);

else if (value <= Value::LargestUInt(Value::maxInt))

decoded = Value::LargestInt(value);

else

decoded = value;

return true;

}

bool Reader::decodeDouble(Token& token) {

Value decoded;

if (!decodeDouble(token, decoded))

return false;

currentValue().swapPayload(decoded);

currentValue().setOffsetStart(token.start_ - begin_);

currentValue().setOffsetLimit(token.end_ - begin_);

return true;

}

bool Reader::decodeDouble(Token& token, Value& decoded) {

double value = 0;

JSONCPP_STRING buffer(token.start_, token.end_);

JSONCPP_ISTRINGSTREAM is(buffer);

if (!(is >> value))

return addError("'" + JSONCPP_STRING(token.start_, token.end_) +

"' is not a number.",

token);

decoded = value;

return true;

}

bool Reader::decodeString(Token& token) {

JSONCPP_STRING decoded_string;

if (!decodeString(token, decoded_string))

return false;

Value decoded(decoded_string);

currentValue().swapPayload(decoded);

currentValue().setOffsetStart(token.start_ - begin_);

currentValue().setOffsetLimit(token.end_ - begin_);

return true;

}

bool Reader::decodeString(Token& token, JSONCPP_STRING& decoded) {

decoded.reserve(static_cast<size_t>(token.end_ - token.start_ - 2));

Location current = token.start_ + 1; // skip '"'

Location end = token.end_ - 1; // do not include '"'

while (current != end) {

Char c = *current++;

if (c == '"')

break;

else if (c == '\\') {

if (current == end)

return addError("Empty escape sequence in string", token, current);

Char escape = *current++;

switch (escape) {

case '"':

decoded += '"';

break;

case '/':

decoded += '/';

break;

case '\\':

decoded += '\\';

break;

case 'b':

decoded += '\b';

break;

case 'f':

decoded += '\f';

break;

case 'n':

decoded += '\n';

break;

case 'r':

decoded += '\r';

break;

case 't':

decoded += '\t';

break;

case 'u': {

unsigned int unicode;

if (!decodeUnicodeCodePoint(token, current, end, unicode))

return false;

decoded += codePointToUTF8(unicode);

} break;

default:

return addError("Bad escape sequence in string", token, current);

}

} else {

decoded += c;

}

return true;

}

bool Reader::decodeUnicodeCodePoint(Token& token,

Location& current,

Location end,

unsigned int& unicode) {

if (!decodeUnicodeEscapeSequence(token, current, end, unicode))

return false;

if (unicode >= 0xD800 && unicode <= 0xDBFF) {

// surrogate pairs

if (end - current < 6)

return addError(

"additional six characters expected to parse unicode surrogate pair.",

token, current);

unsigned int surrogatePair;

if (*(current++) == '\\' && *(current++) == 'u') {

if (decodeUnicodeEscapeSequence(token, current, end, surrogatePair)) {

unicode = 0x10000 + ((unicode & 0x3FF) << 10) + (surrogatePair & 0x3FF);

} else

return false;

} else

return addError("expecting another \\u token to begin the second half of "

"a unicode surrogate pair",

token, current);

}

return true;

}

bool Reader::decodeUnicodeEscapeSequence(Token& token,

Location& current,

Location end,

unsigned int& ret_unicode) {

if (end - current < 4)

return addError(

"Bad unicode escape sequence in string: four digits expected.", token,

current);

int unicode = 0;

for (int index = 0; index < 4; ++index) {

Char c = *current++;

unicode *= 16;

if (c >= '0' && c <= '9')

unicode += c - '0';

else if (c >= 'a' && c <= 'f')

unicode += c - 'a' + 10;

else if (c >= 'A' && c <= 'F')

unicode += c - 'A' + 10;

else

return addError(

"Bad unicode escape sequence in string: hexadecimal digit expected.",

token, current);

}

ret_unicode = static_cast<unsigned int>(unicode);

return true;

}

bool Reader::addError(const JSONCPP_STRING& message,

Token& token,

Location extra) {

ErrorInfo info;

info.token_ = token;

info.message_ = message;

info.extra_ = extra;

errors_.push_back(info);

return false;

}

bool Reader::recoverFromError(TokenType skipUntilToken) {

View remainder of file in raw view

binaryninja-api/json/jsoncpp.cpp at dev · Vector35/binaryninja-api · GitHub

Uh oh!

Expand file tree

Breadcrumbs

jsoncpp.cpp

Latest commit

History

Breadcrumbs

jsoncpp.cpp

File metadata and controls