/mandos/release : revision 237.2.37

48

#include <sys/types.h> /* socket(), inet_pton(), sockaddr,

49

sockaddr_in6, PF_INET6,

50

SOCK_STREAM, INET6_ADDRSTRLEN,

51

uid_t, gid_t, open(), opendir(), DIR */

51

uid_t, gid_t, open(), opendir(),

52

DIR */

52

53

#include <sys/stat.h> /* open() */

53

54

#include <sys/socket.h> /* socket(), struct sockaddr_in6,

54

55

struct in6_addr, inet_pton(),

55

56

connect() */

56

57

#include <fcntl.h> /* open() */

57

#include <dirent.h> /* opendir(), struct dirent, readdir() */

58

#include <inttypes.h> /* PRIu16, SCNu16 */

58

#include <dirent.h> /* opendir(), struct dirent, readdir()

59

*/

60

#include <inttypes.h> /* PRIu16, intmax_t, SCNdMAX */

59

61

#include <assert.h> /* assert() */

60

62

#include <errno.h> /* perror(), errno */

61

63

#include <time.h> /* time() */

90

92

gnutls_*

91

93

init_gnutls_session(),

92

94

GNUTLS_* */

93

#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),

95

#include <gnutls/openpgp.h>

96

/* gnutls_certificate_set_openpgp_key_file(),

94

97

GNUTLS_OPENPGP_FMT_BASE64 */

95

98

96

99

/* GPGME */

129

132

*/

130

133

size_t adjustbuffer(char **buffer, size_t buffer_length,

131

134

size_t buffer_capacity){

132

if (buffer_length + BUFFER_SIZE > buffer_capacity){

135

if(buffer_length + BUFFER_SIZE > buffer_capacity){

133

136

*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);

134

if (buffer == NULL){

137

if(buffer == NULL){

135

138

return 0;

136

139

}

137

140

buffer_capacity += BUFFER_SIZE;

163

166

}

164

167

165

168

rc = gpgme_data_new_from_fd(&pgp_data, fd);

166

if (rc != GPG_ERR_NO_ERROR){

169

if(rc != GPG_ERR_NO_ERROR){

167

170

fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",

168

171

gpgme_strsource(rc), gpgme_strerror(rc));

169

172

return false;

170

173

}

171

174

172

175

rc = gpgme_op_import(mc->ctx, pgp_data);

173

if (rc != GPG_ERR_NO_ERROR){

176

if(rc != GPG_ERR_NO_ERROR){

174

177

fprintf(stderr, "bad gpgme_op_import: %s: %s\n",

175

178

gpgme_strsource(rc), gpgme_strerror(rc));

176

179

return false;

184

187

return true;

185

188

}

186

189

187

if (debug){

190

if(debug){

188

191

fprintf(stderr, "Initialize gpgme\n");

189

192

}

190

193

191

194

/* Init GPGME */

192

195

gpgme_check_version(NULL);

193

196

rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);

194

if (rc != GPG_ERR_NO_ERROR){

197

if(rc != GPG_ERR_NO_ERROR){

195

198

fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",

196

199

gpgme_strsource(rc), gpgme_strerror(rc));

197

200

return false;

198

201

}

199

202

200

203

/* Set GPGME home directory for the OpenPGP engine only */

201

rc = gpgme_get_engine_info (&engine_info);

202

if (rc != GPG_ERR_NO_ERROR){

204

rc = gpgme_get_engine_info(&engine_info);

205

if(rc != GPG_ERR_NO_ERROR){

203

206

fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",

204

207

gpgme_strsource(rc), gpgme_strerror(rc));

205

208

return false;

219

222

220

223

/* Create new GPGME "context" */

221

224

rc = gpgme_new(&(mc->ctx));

222

if (rc != GPG_ERR_NO_ERROR){

225

if(rc != GPG_ERR_NO_ERROR){

223

226

fprintf(stderr, "bad gpgme_new: %s: %s\n",

224

227

gpgme_strsource(rc), gpgme_strerror(rc));

225

228

return false;

226

229

}

227

230

228

if (not import_key(pubkey) or not import_key(seckey)){

231

if(not import_key(pubkey) or not import_key(seckey)){

229

232

return false;

230

233

}

231

234

236

239

* Decrypt OpenPGP data.

237

240

* Returns -1 on error

238

241

*/

239

static ssize_t pgp_packet_decrypt (const mandos_context *mc,

240

const char *cryptotext,

241

size_t crypto_size,

242

char **plaintext){

242

static ssize_t pgp_packet_decrypt(const mandos_context *mc,

243

const char *cryptotext,

244

size_t crypto_size,

245

char **plaintext){

243

246

gpgme_data_t dh_crypto, dh_plain;

244

247

gpgme_error_t rc;

245

248

ssize_t ret;

246

249

size_t plaintext_capacity = 0;

247

250

ssize_t plaintext_length = 0;

248

251

249

if (debug){

252

if(debug){

250

253

fprintf(stderr, "Trying to decrypt OpenPGP data\n");

251

254

}

252

255

253

256

/* Create new GPGME data buffer from memory cryptotext */

254

257

rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,

255

258

0);

256

if (rc != GPG_ERR_NO_ERROR){

259

if(rc != GPG_ERR_NO_ERROR){

257

260

fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",

258

261

gpgme_strsource(rc), gpgme_strerror(rc));

259

262

return -1;

261

264

262

265

/* Create new empty GPGME data buffer for the plaintext */

263

266

rc = gpgme_data_new(&dh_plain);

264

if (rc != GPG_ERR_NO_ERROR){

267

if(rc != GPG_ERR_NO_ERROR){

265

268

fprintf(stderr, "bad gpgme_data_new: %s: %s\n",

266

269

gpgme_strsource(rc), gpgme_strerror(rc));

267

270

gpgme_data_release(dh_crypto);

271

274

/* Decrypt data from the cryptotext data buffer to the plaintext

272

275

data buffer */

273

276

rc = gpgme_op_decrypt(mc->ctx, dh_crypto, dh_plain);

274

if (rc != GPG_ERR_NO_ERROR){

277

if(rc != GPG_ERR_NO_ERROR){

275

278

fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",

276

279

gpgme_strsource(rc), gpgme_strerror(rc));

277

280

plaintext_length = -1;

278

if (debug){

281

if(debug){

279

282

gpgme_decrypt_result_t result;

280

283

result = gpgme_op_decrypt_result(mc->ctx);

281

if (result == NULL){

284

if(result == NULL){

282

285

fprintf(stderr, "gpgme_op_decrypt_result failed\n");

283

286

} else {

284

287

fprintf(stderr, "Unsupported algorithm: %s\n",

311

314

}

312

315

313

316

/* Seek back to the beginning of the GPGME plaintext data buffer */

314

if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){

317

if(gpgme_data_seek(dh_plain, (off_t)0, SEEK_SET) == -1){

315

318

perror("gpgme_data_seek");

316

319

plaintext_length = -1;

317

320

goto decrypt_end;

322

325

plaintext_capacity = adjustbuffer(plaintext,

323

326

(size_t)plaintext_length,

324

327

plaintext_capacity);

325

if (plaintext_capacity == 0){

328

if(plaintext_capacity == 0){

326

329

perror("adjustbuffer");

327

330

plaintext_length = -1;

328

331

goto decrypt_end;

331

334

ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,

332

335

BUFFER_SIZE);

333

336

/* Print the data, if any */

334

if (ret == 0){

337

if(ret == 0){

335

338

/* EOF */

336

339

break;

337

340

}

361

364

return plaintext_length;

362

365

}

363

366

364

static const char * safer_gnutls_strerror (int value) {

365

const char *ret = gnutls_strerror (value); /* Spurious warning */

366

if (ret == NULL)

367

static const char * safer_gnutls_strerror(int value) {

368

const char *ret = gnutls_strerror(value); /* Spurious warning from

369

-Wunreachable-code */

370

if(ret == NULL)

367

371

ret = "(unknown)";

368

372

return ret;

369

373

}

384

388

}

385

389

386

390

ret = gnutls_global_init();

387

if (ret != GNUTLS_E_SUCCESS) {

388

fprintf (stderr, "GnuTLS global_init: %s\n",

389

safer_gnutls_strerror(ret));

391

if(ret != GNUTLS_E_SUCCESS) {

392

fprintf(stderr, "GnuTLS global_init: %s\n",

393

safer_gnutls_strerror(ret));

390

394

return -1;

391

395

}

392

396

393

if (debug){

397

if(debug){

394

398

/* "Use a log level over 10 to enable all debugging options."

395

399

* - GnuTLS manual

396

400

*/

400

404

401

405

/* OpenPGP credentials */

402

406

gnutls_certificate_allocate_credentials(&mc->cred);

403

if (ret != GNUTLS_E_SUCCESS){

404

fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious

405

warning */

406

safer_gnutls_strerror(ret));

407

gnutls_global_deinit ();

407

if(ret != GNUTLS_E_SUCCESS){

408

fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious warning

409

* from

410

* -Wunreachable-code

411

*/

412

safer_gnutls_strerror(ret));

413

gnutls_global_deinit();

408

414

return -1;

409

415

}

410

416

417

423

ret = gnutls_certificate_set_openpgp_key_file

418

424

(mc->cred, pubkeyfilename, seckeyfilename,

419

425

GNUTLS_OPENPGP_FMT_BASE64);

420

if (ret != GNUTLS_E_SUCCESS) {

426

if(ret != GNUTLS_E_SUCCESS) {

421

427

fprintf(stderr,

422

428

"Error[%d] while reading the OpenPGP key pair ('%s',"

423

429

" '%s')\n", ret, pubkeyfilename, seckeyfilename);

428

434

429

435

/* GnuTLS server initialization */

430

436

ret = gnutls_dh_params_init(&mc->dh_params);

431

if (ret != GNUTLS_E_SUCCESS) {

432

fprintf (stderr, "Error in GnuTLS DH parameter initialization:"

433

" %s\n", safer_gnutls_strerror(ret));

437

if(ret != GNUTLS_E_SUCCESS) {

438

fprintf(stderr, "Error in GnuTLS DH parameter initialization:"

439

" %s\n", safer_gnutls_strerror(ret));

434

440

goto globalfail;

435

441

}

436

442

ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);

437

if (ret != GNUTLS_E_SUCCESS) {

438

fprintf (stderr, "Error in GnuTLS prime generation: %s\n",

439

safer_gnutls_strerror(ret));

443

if(ret != GNUTLS_E_SUCCESS) {

444

fprintf(stderr, "Error in GnuTLS prime generation: %s\n",

445

safer_gnutls_strerror(ret));

440

446

goto globalfail;

441

447

}

442

448

457

463

int ret;

458

464

/* GnuTLS session creation */

459

465

ret = gnutls_init(session, GNUTLS_SERVER);

460

if (ret != GNUTLS_E_SUCCESS){

466

if(ret != GNUTLS_E_SUCCESS){

461

467

fprintf(stderr, "Error in GnuTLS session initialization: %s\n",

462

468

safer_gnutls_strerror(ret));

463

469

}

465

471

{

466

472

const char *err;

467

473

ret = gnutls_priority_set_direct(*session, mc->priority, &err);

468

if (ret != GNUTLS_E_SUCCESS) {

474

if(ret != GNUTLS_E_SUCCESS) {

469

475

fprintf(stderr, "Syntax error at: %s\n", err);

470

476

fprintf(stderr, "GnuTLS error: %s\n",

471

477

safer_gnutls_strerror(ret));

472

gnutls_deinit (*session);

478

gnutls_deinit(*session);

473

479

return -1;

474

480

}

475

481

}

476

482

477

483

ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,

478

484

mc->cred);

479

if (ret != GNUTLS_E_SUCCESS) {

485

if(ret != GNUTLS_E_SUCCESS) {

480

486

fprintf(stderr, "Error setting GnuTLS credentials: %s\n",

481

487

safer_gnutls_strerror(ret));

482

gnutls_deinit (*session);

488

gnutls_deinit(*session);

483

489

return -1;

484

490

}

485

491

486

492

/* ignore client certificate if any. */

487

gnutls_certificate_server_set_request (*session,

488

GNUTLS_CERT_IGNORE);

493

gnutls_certificate_server_set_request(*session,

494

GNUTLS_CERT_IGNORE);

489

495

490

gnutls_dh_set_prime_bits (*session, mc->dh_bits);

496

gnutls_dh_set_prime_bits(*session, mc->dh_bits);

491

497

492

498

return 0;

493

499

}

513

519

char interface[IF_NAMESIZE];

514

520

gnutls_session_t session;

515

521

516

ret = init_gnutls_session (mc, &session);

517

if (ret != 0){

522

ret = init_gnutls_session(mc, &session);

523

if(ret != 0){

518

524

return -1;

519

525

}

520

526

542

548

/* It would be nice to have a way to detect if we were passed an

543

549

IPv4 address here. Now we assume an IPv6 address. */

544

550

ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);

545

if (ret < 0 ){

551

if(ret < 0 ){

546

552

perror("inet_pton");

547

553

return -1;

548

554

}

550

556

fprintf(stderr, "Bad address: %s\n", ip);

551

557

return -1;

552

558

}

553

to.in6.sin6_port = htons(port); /* Spurious warning */

559

to.in6.sin6_port = htons(port); /* Spurious warnings from

560

-Wconversion and

561

-Wunreachable-code */

554

562

555

563

to.in6.sin6_scope_id = (uint32_t)if_index;

556

564

569

577

}

570

578

571

579

ret = connect(tcp_sd, &to.in, sizeof(to));

572

if (ret < 0){

580

if(ret < 0){

573

581

perror("connect");

574

582

return -1;

575

583

}

576

584

577

585

const char *out = mandos_protocol_version;

578

586

written = 0;

579

while (true){

587

while(true){

580

588

size_t out_size = strlen(out);

581

589

ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,

582

590

out_size - written));

583

if (ret == -1){

591

if(ret == -1){

584

592

perror("write");

585

593

retval = -1;

586

594

goto mandos_end;

589

597

if(written < out_size){

590

598

continue;

591

599

} else {

592

if (out == mandos_protocol_version){

600

if(out == mandos_protocol_version){

593

601

written = 0;

594

602

out = "\r\n";

595

603

} else {

602

610

fprintf(stderr, "Establishing TLS session with %s\n", ip);

603

611

}

604

612

605

gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);

613

gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);

606

614

607

615

do{

608

ret = gnutls_handshake (session);

616

ret = gnutls_handshake(session);

609

617

} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);

610

618

611

if (ret != GNUTLS_E_SUCCESS){

619

if(ret != GNUTLS_E_SUCCESS){

612

620

if(debug){

613

621

fprintf(stderr, "*** GnuTLS Handshake failed ***\n");

614

gnutls_perror (ret);

622

gnutls_perror(ret);

615

623

}

616

624

retval = -1;

617

625

goto mandos_end;

627

635

while(true){

628

636

buffer_capacity = adjustbuffer(&buffer, buffer_length,

629

637

buffer_capacity);

630

if (buffer_capacity == 0){

638

if(buffer_capacity == 0){

631

639

perror("adjustbuffer");

632

640

retval = -1;

633

641

goto mandos_end;

635

643

636

644

sret = gnutls_record_recv(session, buffer+buffer_length,

637

645

BUFFER_SIZE);

638

if (sret == 0){

646

if(sret == 0){

639

647

break;

640

648

}

641

if (sret < 0){

649

if(sret < 0){

642

650

switch(sret){

643

651

case GNUTLS_E_INTERRUPTED:

644

652

case GNUTLS_E_AGAIN:

645

653

break;

646

654

case GNUTLS_E_REHANDSHAKE:

647

655

do{

648

ret = gnutls_handshake (session);

656

ret = gnutls_handshake(session);

649

657

} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);

650

if (ret < 0){

658

if(ret < 0){

651

659

fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");

652

gnutls_perror (ret);

660

gnutls_perror(ret);

653

661

retval = -1;

654

662

goto mandos_end;

655

663

}

658

666

fprintf(stderr, "Unknown error while reading data from"

659

667

" encrypted session with Mandos server\n");

660

668

retval = -1;

661

gnutls_bye (session, GNUTLS_SHUT_RDWR);

669

gnutls_bye(session, GNUTLS_SHUT_RDWR);

662

670

goto mandos_end;

663

671

}

664

672

} else {

670

678

fprintf(stderr, "Closing TLS session\n");

671

679

}

672

680

673

gnutls_bye (session, GNUTLS_SHUT_RDWR);

681

gnutls_bye(session, GNUTLS_SHUT_RDWR);

674

682

675

if (buffer_length > 0){

683

if(buffer_length > 0){

676

684

decrypted_buffer_size = pgp_packet_decrypt(mc, buffer,

677

685

buffer_length,

678

686

&decrypted_buffer);

679

if (decrypted_buffer_size >= 0){

687

if(decrypted_buffer_size >= 0){

680

688

written = 0;

681

689

while(written < (size_t) decrypted_buffer_size){

682

ret = (int)fwrite (decrypted_buffer + written, 1,

683

(size_t)decrypted_buffer_size - written,

684

stdout);

690

ret = (int)fwrite(decrypted_buffer + written, 1,

691

(size_t)decrypted_buffer_size - written,

692

stdout);

685

693

if(ret == 0 and ferror(stdout)){

686

694

if(debug){

687

695

fprintf(stderr, "Error writing encrypted data: %s\n",

708

716

if(ret == -1){

709

717

perror("close");

710

718

}

711

gnutls_deinit (session);

719

gnutls_deinit(session);

712

720

return retval;

713

721

}

714

722

732

740

/* Called whenever a service has been resolved successfully or

733

741

timed out */

734

742

735

switch (event) {

743

switch(event) {

736

744

default:

737

745

case AVAHI_RESOLVER_FAILURE:

738

746

fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"

746

754

avahi_address_snprint(ip, sizeof(ip), address);

747

755

if(debug){

748

756

fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"

749

PRIu16 ") on port %d\n", name, host_name, ip,

750

interface, port);

757

PRIdMAX ") on port %" PRIu16 "\n", name, host_name,

758

ip, (intmax_t)interface, port);

751

759

}

752

760

int ret = start_mandos_communication(ip, port, interface, mc);

753

if (ret == 0){

761

if(ret == 0){

754

762

avahi_simple_poll_quit(mc->simple_poll);

755

763

}

756

764

}

774

782

/* Called whenever a new services becomes available on the LAN or

775

783

is removed from the LAN */

776

784

777

switch (event) {

785

switch(event) {

778

786

default:

779

787

case AVAHI_BROWSER_FAILURE:

780

788

789

797

the callback function is called the Avahi server will free the

790

798

resolver for us. */

791

799

792

if (!(avahi_s_service_resolver_new(mc->server, interface,

800

if(!(avahi_s_service_resolver_new(mc->server, interface,

793

801

protocol, name, type, domain,

794

802

AVAHI_PROTO_INET6, 0,

795

803

resolve_callback, mc)))

813

821

AvahiSServiceBrowser *sb = NULL;

814

822

int error;

815

823

int ret;

824

intmax_t tmpmax;

825

int numchars;

816

826

int exitcode = EXIT_SUCCESS;

817

827

const char *interface = "eth0";

818

828

struct ifreq network;

864

874

{ .name = NULL }

865

875

};

866

876

867

error_t parse_opt (int key, char *arg,

868

struct argp_state *state) {

869

switch (key) {

877

error_t parse_opt(int key, char *arg,

878

struct argp_state *state) {

879

switch(key) {

870

880

case 128: /* --debug */

871

881

debug = true;

872

882

break;

883

893

pubkey = arg;

884

894

break;

885

895

case 129: /* --dh-bits */

886

ret = sscanf(arg, "%u", &mc.dh_bits);

887

if(ret != 1){

896

ret = sscanf(arg, "%" SCNdMAX "%n", &tmpmax, &numchars);

897

if(ret < 1 or tmpmax != (typeof(mc.dh_bits))tmpmax

898

or arg[numchars] != '\0'){

888

899

fprintf(stderr, "Bad number of DH bits\n");

889

900

exit(EXIT_FAILURE);

890

901

}

902

mc.dh_bits = (typeof(mc.dh_bits))tmpmax;

891

903

break;

892

904

case 130: /* --priority */

893

905

mc.priority = arg;

894

906

break;

895

907

case ARGP_KEY_ARG:

896

argp_usage (state);

908

argp_usage(state);

897

909

case ARGP_KEY_END:

898

910

break;

899

911

default:

906

918

.args_doc = "",

907

919

.doc = "Mandos client -- Get and decrypt"

908

920

" passwords from a Mandos server" };

909

ret = argp_parse (&argp, argc, argv, 0, 0, NULL);

910

if (ret == ARGP_ERR_UNKNOWN){

921

ret = argp_parse(&argp, argc, argv, 0, 0, NULL);

922

if(ret == ARGP_ERR_UNKNOWN){

911

923

fprintf(stderr, "Unknown error while parsing arguments\n");

912

924

exitcode = EXIT_FAILURE;

913

925

goto end;

948

960

gid = getgid();

949

961

950

962

ret = setuid(uid);

951

if (ret == -1){

963

if(ret == -1){

952

964

perror("setuid");

953

965

}

954

966

955

967

setgid(gid);

956

if (ret == -1){

968

if(ret == -1){

957

969

perror("setgid");

958

970

}

959

971

960

972

ret = init_gnutls_global(&mc, pubkey, seckey);

961

if (ret == -1){

973

if(ret == -1){

962

974

fprintf(stderr, "init_gnutls_global failed\n");

963

975

exitcode = EXIT_FAILURE;

964

976

goto end;

996

1008

goto end;

997

1009

}

998

1010

uint16_t port;

999

ret = sscanf(address+1, "%" SCNu16, &port);

1000

if(ret != 1){

1011

ret = sscanf(address+1, "%" SCNdMAX "%n", &tmpmax, &numchars);

1012

if(ret < 1 or tmpmax != (uint16_t)tmpmax

1013

or address[numchars+1] != '\0'){

1001

1014

fprintf(stderr, "Bad port number\n");

1002

1015

exitcode = EXIT_FAILURE;

1003

1016

goto end;

1004

1017

}

1018

port = (uint16_t)tmpmax;

1005

1019

*address = '\0';

1006

1020

address = connect_to;

1007

1021

ret = start_mandos_communication(address, port, if_index, &mc);

1013

1027

goto end;

1014

1028

}

1015

1029

1016

if (not debug){

1030

if(not debug){

1017

1031

avahi_set_log_function(empty_log);

1018

1032

}

1019

1033

1022

1036

1023

1037

/* Allocate main Avahi loop object */

1024

1038

mc.simple_poll = avahi_simple_poll_new();

1025

if (mc.simple_poll == NULL) {

1039

if(mc.simple_poll == NULL) {

1026

1040

fprintf(stderr, "Avahi: Failed to create simple poll"

1027

1041

" object.\n");

1028

1042

exitcode = EXIT_FAILURE;

1048

1062

}

1049

1063

1050

1064

/* Check if creating the Avahi server object succeeded */

1051

if (mc.server == NULL) {

1065

if(mc.server == NULL) {

1052

1066

fprintf(stderr, "Failed to create Avahi server: %s\n",

1053

1067

avahi_strerror(error));

1054

1068

exitcode = EXIT_FAILURE;

1060

1074

AVAHI_PROTO_INET6,

1061

1075

"_mandos._tcp", NULL, 0,

1062

1076

browse_callback, &mc);

1063

if (sb == NULL) {

1077

if(sb == NULL) {

1064

1078

fprintf(stderr, "Failed to create service browser: %s\n",

1065

1079

avahi_strerror(avahi_server_errno(mc.server)));

1066

1080

exitcode = EXIT_FAILURE;

1069

1083

1070

1084

/* Run the main loop */

1071

1085

1072

if (debug){

1086

if(debug){

1073

1087

fprintf(stderr, "Starting Avahi loop search\n");

1074

1088

}

1075

1089

1077

1091

1078

1092

end:

1079

1093

1080

if (debug){

1094

if(debug){

1081

1095

fprintf(stderr, "%s exiting\n", argv[0]);

1082

1096

}

1083

1097

1084

1098

/* Cleanup things */

1085

if (sb != NULL)

1099

if(sb != NULL)

1086

1100

avahi_s_service_browser_free(sb);

1087

1101

1088

if (mc.server != NULL)

1102

if(mc.server != NULL)

1089

1103

avahi_server_free(mc.server);

1090

1104

1091

if (mc.simple_poll != NULL)

1105

if(mc.simple_poll != NULL)

1092

1106

avahi_simple_poll_free(mc.simple_poll);

1093

1107

1094

if (gnutls_initalized){

1108

if(gnutls_initalized){

1095

1109

gnutls_certificate_free_credentials(mc.cred);

1096

gnutls_global_deinit ();

1110

gnutls_global_deinit();

1097

1111

gnutls_dh_params_deinit(mc.dh_params);

1098

1112

}

1099

1113

1116

1130

if(direntry == NULL){

1117

1131

break;

1118

1132

}

1119

if (direntry->d_type == DT_REG){

1133

if(direntry->d_type == DT_REG){

1120

1134

char *fullname = NULL;

1121

1135

ret = asprintf(&fullname, "%s/%s", tempdir,

1122

1136

direntry->d_name);