/mandos/trunk : revision 92

32

#define _LARGEFILE_SOURCE

33

#define _FILE_OFFSET_BITS 64

34

35

#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */

35

#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */

36

37

#include <stdio.h>

38

#include <assert.h>

39

#include <stdlib.h>

40

#include <time.h>

41

#include <net/if.h> /* if_nametoindex */

42

#include <sys/ioctl.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,

43

SIOCSIFFLAGS */

37

#include <stdio.h> /* fprintf(), stderr, fwrite(),

38

stdout, ferror() */

39

#include <stdint.h> /* uint16_t, uint32_t */

40

#include <stddef.h> /* NULL, size_t, ssize_t */

41

#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,

42

srand() */

43

#include <stdbool.h> /* bool, true */

44

#include <string.h> /* memset(), strcmp(), strlen(),

45

strerror(), asprintf(), strcpy() */

46

#include <sys/ioctl.h> /* ioctl */

47

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

48

sockaddr_in6, PF_INET6,

49

SOCK_STREAM, INET6_ADDRSTRLEN,

50

uid_t, gid_t */

51

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

52

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

53

struct in6_addr, inet_pton(),

54

connect() */

55

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

56

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

57

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

44

58

#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,

45

SIOCSIFFLAGS */

59

SIOCSIFFLAGS, if_indextoname(),

60

if_nametoindex(), IF_NAMESIZE */

61

#include <unistd.h> /* close(), SEEK_SET, off_t, write(),

62

getuid(), getgid(), setuid(),

63

setgid() */

64

#include <netinet/in.h>

65

#include <arpa/inet.h> /* inet_pton(), htons */

66

#include <iso646.h> /* not, and */

67

#include <argp.h> /* struct argp_option, error_t, struct

68

argp_state, struct argp,

69

argp_parse(), ARGP_KEY_ARG,

70

ARGP_KEY_END, ARGP_ERR_UNKNOWN */

46

71

72

/* Avahi */

73

/* All Avahi types, constants and functions

74

Avahi*, avahi_*,

75

AVAHI_* */

47

76

#include <avahi-core/core.h>

48

77

#include <avahi-core/lookup.h>

49

78

#include <avahi-core/log.h>

51

80

#include <avahi-common/malloc.h>

52

81

#include <avahi-common/error.h>

53

82

54

/* Mandos client part */

55

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

56

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

57

struct in6_addr, inet_pton() */

58

#include <gnutls/gnutls.h> /* All GnuTLS stuff */

59

#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */

83

/* GnuTLS */

84

#include <gnutls/gnutls.h> /* All GnuTLS types, constants and

85

functions:

86

gnutls_*

87

init_gnutls_session(),

88

GNUTLS_* */

89

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

90

GNUTLS_OPENPGP_FMT_BASE64 */

60

91

61

#include <unistd.h> /* close() */

62

#include <netinet/in.h>

63

#include <stdbool.h> /* true */

64

#include <string.h> /* memset */

65

#include <arpa/inet.h> /* inet_pton() */

66

#include <iso646.h> /* not */

67

#include <net/if.h> /* IF_NAMESIZE */

68

#include <argp.h> /* struct argp_option,

69

struct argp_state, struct argp,

70

argp_parse() */

71

92

/* GPGME */

72

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

73

#include <gpgme.h>

93

#include <gpgme.h> /* All GPGME types, constants and

94

functions:

95

gpgme_*

96

GPGME_PROTOCOL_OpenPGP,

97

GPG_ERR_NO_* */

74

98

75

99

#define BUFFER_SIZE 256

76

100

77

101

bool debug = false;

78

const char *keydir = "/conf/conf.d/mandos";

79

const char *argp_program_version = "mandosclient 0.9";

102

static const char *keydir = "/conf/conf.d/mandos";

103

static const char mandos_protocol_version[] = "1";

104

const char *argp_program_version = "password-request 1.0";

80

105

const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";

81

const char mandos_protocol_version[] = "1";

82

106

83

/* Used for passing in values through all the callback functions */

107

/* Used for passing in values through the Avahi callback functions */

84

108

typedef struct {

85

109

AvahiSimplePoll *simple_poll;

86

110

AvahiServer *server;

90

114

const char *priority;

91

115

} mandos_context;

92

116

117

/*

118

* Make room in "buffer" for at least BUFFER_SIZE additional bytes.

119

* "buffer_capacity" is how much is currently allocated,

120

* "buffer_length" is how much is already used.

121

*/

93

122

size_t adjustbuffer(char **buffer, size_t buffer_length,

94

123

size_t buffer_capacity){

95

124

if (buffer_length + BUFFER_SIZE > buffer_capacity){

200

229

} else {

201

230

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

202

231

result->unsupported_algorithm);

203

fprintf(stderr, "Wrong key usage: %d\n",

232

fprintf(stderr, "Wrong key usage: %u\n",

204

233

result->wrong_key_usage);

205

234

if(result->file_name != NULL){

206

235

fprintf(stderr, "File name: %s\n", result->file_name);

230

259

231

260

*plaintext = NULL;

232

261

while(true){

233

plaintext_capacity = adjustbuffer(plaintext, (size_t)plaintext_length,

262

plaintext_capacity = adjustbuffer(plaintext,

263

(size_t)plaintext_length,

234

264

plaintext_capacity);

235

265

if (plaintext_capacity == 0){

236

266

perror("adjustbuffer");

272

302

}

273

303

274

304

static const char * safer_gnutls_strerror (int value) {

275

const char *ret = gnutls_strerror (value);

305

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

276

306

if (ret == NULL)

277

307

ret = "(unknown)";

278

308

return ret;

285

315

}

286

316

287

317

static int init_gnutls_global(mandos_context *mc,

288

const char *pubkeyfile,

289

const char *seckeyfile){

318

const char *pubkeyfilename,

319

const char *seckeyfilename){

290

320

int ret;

291

321

292

322

if(debug){

293

323

fprintf(stderr, "Initializing GnuTLS\n");

294

324

}

295

296

if ((ret = gnutls_global_init ())

297

!= GNUTLS_E_SUCCESS) {

325

326

ret = gnutls_global_init();

327

if (ret != GNUTLS_E_SUCCESS) {

298

328

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

299

329

safer_gnutls_strerror(ret));

300

330

return -1;

309

339

}

310

340

311

341

/* OpenPGP credentials */

312

if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))

313

!= GNUTLS_E_SUCCESS) {

314

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

342

gnutls_certificate_allocate_credentials(&mc->cred);

343

if (ret != GNUTLS_E_SUCCESS){

344

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

345

warning */

315

346

safer_gnutls_strerror(ret));

347

gnutls_global_deinit ();

316

348

return -1;

317

349

}

318

350

319

351

if(debug){

320

352

fprintf(stderr, "Attempting to use OpenPGP certificate %s"

321

" and keyfile %s as GnuTLS credentials\n", pubkeyfile,

322

seckeyfile);

353

" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,

354

seckeyfilename);

323

355

}

324

356

325

357

ret = gnutls_certificate_set_openpgp_key_file

326

(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);

358

(mc->cred, pubkeyfilename, seckeyfilename,

359

GNUTLS_OPENPGP_FMT_BASE64);

327

360

if (ret != GNUTLS_E_SUCCESS) {

328

361

fprintf(stderr,

329

362

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

330

" '%s')\n", ret, pubkeyfile, seckeyfile);

363

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

331

364

fprintf(stdout, "The GnuTLS error is: %s\n",

332

365

safer_gnutls_strerror(ret));

333

return -1;

366

goto globalfail;

334

367

}

335

368

336

369

/* GnuTLS server initialization */

338

371

if (ret != GNUTLS_E_SUCCESS) {

339

372

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

340

373

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

341

return -1;

374

goto globalfail;

342

375

}

343

376

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

344

377

if (ret != GNUTLS_E_SUCCESS) {

345

378

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

346

379

safer_gnutls_strerror(ret));

347

return -1;

380

goto globalfail;

348

381

}

349

382

350

383

gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);

351

384

352

385

return 0;

386

387

globalfail:

388

389

gnutls_certificate_free_credentials(mc->cred);

390

gnutls_global_deinit();

391

return -1;

392

353

393

}

354

394

355

static int init_gnutls_session(mandos_context *mc, gnutls_session_t *session){

395

static int init_gnutls_session(mandos_context *mc,

396

gnutls_session_t *session){

356

397

int ret;

357

398

/* GnuTLS session creation */

358

399

ret = gnutls_init(session, GNUTLS_SERVER);

368

409

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

369

410

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

370

411

safer_gnutls_strerror(ret));

412

gnutls_deinit (*session);

371

413

return -1;

372

414

}

373

415

}

377

419

if (ret != GNUTLS_E_SUCCESS) {

378

420

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

379

421

safer_gnutls_strerror(ret));

422

gnutls_deinit (*session);

380

423

return -1;

381

424

}

382

425

398

441

AvahiIfIndex if_index,

399

442

mandos_context *mc){

400

443

int ret, tcp_sd;

401

struct sockaddr_in6 to;

444

union { struct sockaddr in; struct sockaddr_in6 in6; } to;

402

445

char *buffer = NULL;

403

446

char *decrypted_buffer;

404

447

size_t buffer_length = 0;

408

451

int retval = 0;

409

452

char interface[IF_NAMESIZE];

410

453

gnutls_session_t session;

411

gnutls_dh_params_t dh_params;

412

454

413

455

ret = init_gnutls_session (mc, &session);

414

456

if (ret != 0){

416

458

}

417

459

418

460

if(debug){

419

fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",

420

ip, port);

461

fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16

462

"\n", ip, port);

421

463

}

422

464

423

465

tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);

434

476

fprintf(stderr, "Binding to interface %s\n", interface);

435

477

}

436

478

437

memset(&to,0,sizeof(to)); /* Spurious warning */

438

to.sin6_family = AF_INET6;

479

memset(&to, 0, sizeof(to));

480

to.in6.sin6_family = AF_INET6;

439

481

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

440

482

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

441

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

483

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

442

484

if (ret < 0 ){

443

485

perror("inet_pton");

444

486

return -1;

447

489

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

448

490

return -1;

449

491

}

450

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

492

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

451

493

452

to.sin6_scope_id = (uint32_t)if_index;

494

to.in6.sin6_scope_id = (uint32_t)if_index;

453

495

454

496

if(debug){

455

fprintf(stderr, "Connection to: %s, port %d\n", ip, port);

497

fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,

498

port);

456

499

char addrstr[INET6_ADDRSTRLEN] = "";

457

if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr,

500

if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,

458

501

sizeof(addrstr)) == NULL){

459

502

perror("inet_ntop");

460

503

} else {

464

507

}

465

508

}

466

509

467

ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));

510

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

468

511

if (ret < 0){

469

512

perror("connect");

470

513

return -1;

499

542

}

500

543

501

544

gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);

502

503

ret = gnutls_handshake (session);

545

546

do{

547

ret = gnutls_handshake (session);

548

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

504

549

505

550

if (ret != GNUTLS_E_SUCCESS){

506

551

if(debug){

519

564

}

520

565

521

566

while(true){

522

buffer_capacity = adjustbuffer(&buffer, buffer_length, buffer_capacity);

567

buffer_capacity = adjustbuffer(&buffer, buffer_length,

568

buffer_capacity);

523

569

if (buffer_capacity == 0){

524

570

perror("adjustbuffer");

525

571

retval = -1;

537

583

case GNUTLS_E_AGAIN:

538

584

break;

539

585

case GNUTLS_E_REHANDSHAKE:

540

ret = gnutls_handshake (session);

586

do{

587

ret = gnutls_handshake (session);

588

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

541

589

if (ret < 0){

542

590

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

543

591

gnutls_perror (ret);

596

644

free(buffer);

597

645

close(tcp_sd);

598

646

gnutls_deinit (session);

599

gnutls_certificate_free_credentials (mc->cred);

600

gnutls_global_deinit ();

601

647

return retval;

602

648

}

603

649

616

662

flags,

617

663

void* userdata) {

618

664

mandos_context *mc = userdata;

619

assert(r); /* Spurious warning */

665

assert(r);

620

666

621

667

/* Called whenever a service has been resolved successfully or

622

668

timed out */

634

680

char ip[AVAHI_ADDRESS_STR_MAX];

635

681

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

636

682

if(debug){

637

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

638

" port %d\n", name, host_name, ip, interface, port);

683

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

684

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

685

interface, port);

639

686

}

640

687

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

641

688

if (ret == 0){

642

exit(EXIT_SUCCESS);

689

avahi_simple_poll_quit(mc->simple_poll);

643

690

}

644

691

}

645

692

}

657

704

flags,

658

705

void* userdata) {

659

706

mandos_context *mc = userdata;

660

assert(b); /* Spurious warning */

707

assert(b);

661

708

662

709

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

663

710

is removed from the LAN */

699

746

700

747

/* Combines file name and path and returns the malloced new

701

748

string. some sane checks could/should be added */

702

static const char *combinepath(const char *first, const char *second){

703

size_t f_len = strlen(first);

704

size_t s_len = strlen(second);

705

char *tmp = malloc(f_len + s_len + 2);

706

if (tmp == NULL){

749

static char *combinepath(const char *first, const char *second){

750

char *tmp;

751

int ret = asprintf(&tmp, "%s/%s", first, second);

752

if(ret < 0){

707

753

return NULL;

708

754

}

709

if(f_len > 0){

710

memcpy(tmp, first, f_len); /* Spurious warning */

711

}

712

tmp[f_len] = '/';

713

if(s_len > 0){

714

memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */

715

}

716

tmp[f_len + 1 + s_len] = '\0';

717

755

return tmp;

718

756

}

719

757

730

768

gid_t gid;

731

769

char *connect_to = NULL;

732

770

AvahiIfIndex if_index = AVAHI_IF_UNSPEC;

733

const char *pubkeyfile = "pubkey.txt";

734

const char *seckeyfile = "seckey.txt";

771

char *pubkeyfilename = NULL;

772

char *seckeyfilename = NULL;

773

const char *pubkeyname = "pubkey.txt";

774

const char *seckeyname = "seckey.txt";

735

775

mandos_context mc = { .simple_poll = NULL, .server = NULL,

736

776

.dh_bits = 1024, .priority = "SECURE256"};

777

bool gnutls_initalized = false;

737

778

738

779

{

739

780

struct argp_option options[] = {

741

782

.doc = "Debug mode", .group = 3 },

742

783

{ .name = "connect", .key = 'c',

743

784

.arg = "IP",

744

.doc = "Connect directly to a sepcified mandos server", .group = 1 },

785

.doc = "Connect directly to a sepcified mandos server",

786

.group = 1 },

745

787

{ .name = "interface", .key = 'i',

746

788

.arg = "INTERFACE",

747

.doc = "Interface that Avahi will conntect through", .group = 1 },

789

.doc = "Interface that Avahi will conntect through",

790

.group = 1 },

748

791

{ .name = "keydir", .key = 'd',

749

792

.arg = "KEYDIR",

750

.doc = "Directory where the openpgp keyring is", .group = 1 },

793

.doc = "Directory where the openpgp keyring is",

794

.group = 1 },

751

795

{ .name = "seckey", .key = 's',

752

796

.arg = "SECKEY",

753

.doc = "Secret openpgp key for gnutls authentication", .group = 1 },

797

.doc = "Secret openpgp key for gnutls authentication",

798

.group = 1 },

754

799

{ .name = "pubkey", .key = 'p',

755

800

.arg = "PUBKEY",

756

.doc = "Public openpgp key for gnutls authentication", .group = 2 },

801

.doc = "Public openpgp key for gnutls authentication",

802

.group = 2 },

757

803

{ .name = "dh-bits", .key = 129,

758

804

.arg = "BITS",

759

.doc = "dh-bits to use in gnutls communication", .group = 2 },

805

.doc = "dh-bits to use in gnutls communication",

806

.group = 2 },

760

807

{ .name = "priority", .key = 130,

761

808

.arg = "PRIORITY",

762

809

.doc = "GNUTLS priority", .group = 1 },

764

811

};

765

812

766

813

767

error_t parse_opt (int key, char *arg, struct argp_state *state) {

768

/* Get the INPUT argument from `argp_parse', which we know is a

769

pointer to our plugin list pointer. */

814

error_t parse_opt (int key, char *arg,

815

struct argp_state *state) {

816

/* Get the INPUT argument from `argp_parse', which we know is

817

a pointer to our plugin list pointer. */

770

818

switch (key) {

771

819

case 128:

772

820

debug = true;

781

829

keydir = arg;

782

830

break;

783

831

case 's':

784

seckeyfile = arg;

832

seckeyname = arg;

785

833

break;

786

834

case 'p':

787

pubkeyfile = arg;

835

pubkeyname = arg;

788

836

break;

789

837

case 129:

790

838

errno = 0;

799

847

break;

800

848

case ARGP_KEY_ARG:

801

849

argp_usage (state);

850

case ARGP_KEY_END:

802

851

break;

803

case ARGP_KEY_END:

804

break;

805

852

default:

806

853

return ARGP_ERR_UNKNOWN;

807

854

}

810

857

811

858

struct argp argp = { .options = options, .parser = parse_opt,

812

859

.args_doc = "",

813

.doc = "Mandos client -- Get and decrypt passwords from mandos server" };

814

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

860

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

861

" passwords from mandos server" };

862

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

863

if (ret == ARGP_ERR_UNKNOWN){

864

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

865

exitcode = EXIT_FAILURE;

866

goto end;

867

}

815

868

}

816

869

817

pubkeyfile = combinepath(keydir, pubkeyfile);

818

if (pubkeyfile == NULL){

870

pubkeyfilename = combinepath(keydir, pubkeyname);

871

if (pubkeyfilename == NULL){

819

872

perror("combinepath");

820

873

exitcode = EXIT_FAILURE;

821

874

goto end;

822

875

}

823

876

824

seckeyfile = combinepath(keydir, seckeyfile);

825

if (seckeyfile == NULL){

877

seckeyfilename = combinepath(keydir, seckeyname);

878

if (seckeyfilename == NULL){

826

879

perror("combinepath");

880

exitcode = EXIT_FAILURE;

827

881

goto end;

828

882

}

829

883

830

ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);

884

ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);

831

885

if (ret == -1){

832

fprintf(stderr, "init_gnutls_global\n");

886

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

887

exitcode = EXIT_FAILURE;

833

888

goto end;

834

}

835

889

} else {

890

gnutls_initalized = true;

891

}

892

893

/* If the interface is down, bring it up */

894

{

895

sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);

896

if(sd < 0) {

897

perror("socket");

898

exitcode = EXIT_FAILURE;

899

goto end;

900

}

901

strcpy(network.ifr_name, interface);

902

ret = ioctl(sd, SIOCGIFFLAGS, &network);

903

if(ret == -1){

904

perror("ioctl SIOCGIFFLAGS");

905

exitcode = EXIT_FAILURE;

906

goto end;

907

}

908

if((network.ifr_flags & IFF_UP) == 0){

909

network.ifr_flags |= IFF_UP;

910

ret = ioctl(sd, SIOCSIFFLAGS, &network);

911

if(ret == -1){

912

perror("ioctl SIOCSIFFLAGS");

913

exitcode = EXIT_FAILURE;

914

goto end;

915

}

916

}

917

close(sd);

918

}

919

836

920

uid = getuid();

837

921

gid = getgid();

838

922

839

923

ret = setuid(uid);

840

924

if (ret == -1){

841

925

perror("setuid");

879

963

goto end;

880

964

}

881

965

882

/* If the interface is down, bring it up */

883

{

884

sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);

885

if(sd < 0) {

886

perror("socket");

887

exitcode = EXIT_FAILURE;

888

goto end;

889

}

890

strcpy(network.ifr_name, interface); /* Spurious warning */

891

ret = ioctl(sd, SIOCGIFFLAGS, &network);

892

if(ret == -1){

893

perror("ioctl SIOCGIFFLAGS");

894

exitcode = EXIT_FAILURE;

895

goto end;

896

}

897

if((network.ifr_flags & IFF_UP) == 0){

898

network.ifr_flags |= IFF_UP;

899

ret = ioctl(sd, SIOCSIFFLAGS, &network);

900

if(ret == -1){

901

perror("ioctl SIOCSIFFLAGS");

902

exitcode = EXIT_FAILURE;

903

goto end;

904

}

905

}

906

close(sd);

907

}

908

909

966

if (not debug){

910

967

avahi_set_log_function(empty_log);

911

968

}

983

1040

984

1041

if (mc.simple_poll != NULL)

985

1042

avahi_simple_poll_free(mc.simple_poll);

986

free(pubkeyfile);

987

free(seckeyfile);

1043

free(pubkeyfilename);

1044

free(seckeyfilename);

1045

1046

if (gnutls_initalized){

1047

gnutls_certificate_free_credentials(mc.cred);

1048

gnutls_global_deinit ();

1049

}

988

1050

989

1051

return exitcode;

990

1052

}