32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
38
36
#include <assert.h>
39
37
#include <stdlib.h>
41
39
#include <net/if.h> /* if_nametoindex */
42
#include <sys/ioctl.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
44
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
40
#include <sys/ioctl.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
41
#include <net/if.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
47
43
#include <avahi-core/core.h>
48
44
#include <avahi-core/lookup.h>
64
60
#include <string.h> /* memset */
65
61
#include <arpa/inet.h> /* inet_pton() */
66
62
#include <iso646.h> /* not */
67
#include <net/if.h> /* IF_NAMESIZE */
68
#include <argp.h> /* struct argp_option,
69
struct argp_state, struct argp,
72
65
#include <errno.h> /* perror() */
75
71
#define BUFFER_SIZE 256
73
static const char *keydir = "/conf/conf.d/mandos";
74
static const char *pubkeyfile = "pubkey.txt";
75
static const char *seckeyfile = "seckey.txt";
77
77
bool debug = false;
78
static const char *keydir = "/conf/conf.d/mandos";
79
static const char mandos_protocol_version[] = "1";
80
const char *argp_program_version = "mandosclient 0.9";
81
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
83
/* Used for passing in values through the Avahi callback functions */
79
/* Used for passing in values through all the callback functions */
85
81
AvahiSimplePoll *simple_poll;
86
82
AvahiServer *server;
87
83
gnutls_certificate_credentials_t cred;
88
84
unsigned int dh_bits;
89
gnutls_dh_params_t dh_params;
90
85
const char *priority;
94
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
95
* "buffer_capacity" is how much is currently allocated,
96
* "buffer_length" is how much is already used.
98
size_t adjustbuffer(char **buffer, size_t buffer_length,
99
size_t buffer_capacity){
100
if (buffer_length + BUFFER_SIZE > buffer_capacity){
101
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
105
buffer_capacity += BUFFER_SIZE;
107
return buffer_capacity;
111
* Decrypt OpenPGP data using keyrings in HOMEDIR.
112
* Returns -1 on error
114
static ssize_t pgp_packet_decrypt (const char *cryptotext,
88
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
117
90
const char *homedir){
118
91
gpgme_data_t dh_crypto, dh_plain;
122
size_t plaintext_capacity = 0;
123
ssize_t plaintext_length = 0;
95
ssize_t new_packet_capacity = 0;
96
ssize_t new_packet_length = 0;
124
97
gpgme_engine_info_t engine_info;
127
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
100
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
152
125
engine_info = engine_info->next;
154
127
if(engine_info == NULL){
155
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
128
fprintf(stderr, "Could not set home dir to %s\n", homedir);
159
/* Create new GPGME data buffer from memory cryptotext */
160
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
132
/* Create new GPGME data buffer from packet buffer */
133
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
162
134
if (rc != GPG_ERR_NO_ERROR){
163
135
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
164
136
gpgme_strsource(rc), gpgme_strerror(rc));
179
150
if (rc != GPG_ERR_NO_ERROR){
180
151
fprintf(stderr, "bad gpgme_new: %s: %s\n",
181
152
gpgme_strsource(rc), gpgme_strerror(rc));
182
plaintext_length = -1;
186
/* Decrypt data from the cryptotext data buffer to the plaintext
156
/* Decrypt data from the FILE pointer to the plaintext data
188
158
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
189
159
if (rc != GPG_ERR_NO_ERROR){
190
160
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
191
161
gpgme_strsource(rc), gpgme_strerror(rc));
192
plaintext_length = -1;
197
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
166
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
201
170
gpgme_decrypt_result_t result;
202
171
result = gpgme_op_decrypt_result(ctx);
198
/* Delete the GPGME FILE pointer cryptotext data buffer */
199
gpgme_data_release(dh_crypto);
229
201
/* Seek back to the beginning of the GPGME plaintext data buffer */
230
202
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
231
203
perror("pgpme_data_seek");
232
plaintext_length = -1;
238
plaintext_capacity = adjustbuffer(plaintext,
239
(size_t)plaintext_length,
241
if (plaintext_capacity == 0){
242
perror("adjustbuffer");
243
plaintext_length = -1;
208
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
209
*new_packet = realloc(*new_packet,
210
(unsigned int)new_packet_capacity
212
if (*new_packet == NULL){
216
new_packet_capacity += BUFFER_SIZE;
247
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
219
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
249
221
/* Print the data, if any */
255
226
perror("gpgme_data_read");
256
plaintext_length = -1;
259
plaintext_length += ret;
229
new_packet_length += ret;
263
fprintf(stderr, "Decrypted password is: ");
264
for(ssize_t i = 0; i < plaintext_length; i++){
265
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
267
fprintf(stderr, "\n");
272
/* Delete the GPGME cryptotext data buffer */
273
gpgme_data_release(dh_crypto);
232
/* FIXME: check characters before printing to screen so to not print
233
terminal control characters */
235
/* fprintf(stderr, "decrypted password is: "); */
236
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
237
/* fprintf(stderr, "\n"); */
275
240
/* Delete the GPGME plaintext data buffer */
276
241
gpgme_data_release(dh_plain);
277
return plaintext_length;
242
return new_packet_length;
280
245
static const char * safer_gnutls_strerror (int value) {
302
266
if ((ret = gnutls_global_init ())
303
267
!= GNUTLS_E_SUCCESS) {
304
fprintf (stderr, "GnuTLS global_init: %s\n",
305
safer_gnutls_strerror(ret));
268
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
310
/* "Use a log level over 10 to enable all debugging options."
313
273
gnutls_global_set_log_level(11);
314
274
gnutls_global_set_log_function(debuggnutls);
317
/* OpenPGP credentials */
277
/* openpgp credentials */
318
278
if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))
319
279
!= GNUTLS_E_SUCCESS) {
320
fprintf (stderr, "GnuTLS memory error: %s\n",
280
fprintf (stderr, "memory error: %s\n",
321
281
safer_gnutls_strerror(ret));
331
291
ret = gnutls_certificate_set_openpgp_key_file
332
292
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
333
293
if (ret != GNUTLS_E_SUCCESS) {
335
"Error[%d] while reading the OpenPGP key pair ('%s',"
336
" '%s')\n", ret, pubkeyfile, seckeyfile);
337
fprintf(stdout, "The GnuTLS error is: %s\n",
295
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
297
ret, pubkeyfile, seckeyfile);
298
fprintf(stdout, "The Error is: %s\n",
338
299
safer_gnutls_strerror(ret));
342
/* GnuTLS server initialization */
343
ret = gnutls_dh_params_init(&mc->dh_params);
344
if (ret != GNUTLS_E_SUCCESS) {
345
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
346
" %s\n", safer_gnutls_strerror(ret));
349
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
350
if (ret != GNUTLS_E_SUCCESS) {
351
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
352
safer_gnutls_strerror(ret));
356
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
361
static int init_gnutls_session(mandos_context *mc,
362
gnutls_session_t *session){
364
/* GnuTLS session creation */
365
ret = gnutls_init(session, GNUTLS_SERVER);
366
if (ret != GNUTLS_E_SUCCESS){
303
//GnuTLS server initialization
304
if ((ret = gnutls_dh_params_init(dh_params))
305
!= GNUTLS_E_SUCCESS) {
306
fprintf (stderr, "Error in dh parameter initialization: %s\n",
307
safer_gnutls_strerror(ret));
311
if ((ret = gnutls_dh_params_generate2(*dh_params, mc->dh_bits))
312
!= GNUTLS_E_SUCCESS) {
313
fprintf (stderr, "Error in prime generation: %s\n",
314
safer_gnutls_strerror(ret));
318
gnutls_certificate_set_dh_params(mc->cred, *dh_params);
320
// GnuTLS session creation
321
if ((ret = gnutls_init(session, GNUTLS_SERVER))
322
!= GNUTLS_E_SUCCESS){
367
323
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
368
324
safer_gnutls_strerror(ret));
373
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
374
if (ret != GNUTLS_E_SUCCESS) {
375
fprintf(stderr, "Syntax error at: %s\n", err);
376
fprintf(stderr, "GnuTLS error: %s\n",
377
safer_gnutls_strerror(ret));
327
if ((ret = gnutls_priority_set_direct(*session, mc->priority, &err))
328
!= GNUTLS_E_SUCCESS) {
329
fprintf(stderr, "Syntax error at: %s\n", err);
330
fprintf(stderr, "GnuTLS error: %s\n",
331
safer_gnutls_strerror(ret));
382
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
384
if (ret != GNUTLS_E_SUCCESS) {
385
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
335
if ((ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
337
!= GNUTLS_E_SUCCESS) {
338
fprintf(stderr, "Error setting a credentials set: %s\n",
386
339
safer_gnutls_strerror(ret));
399
/* Avahi log function callback */
400
352
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
401
353
__attribute__((unused)) const char *txt){}
403
/* Called when a Mandos server is found */
404
355
static int start_mandos_communication(const char *ip, uint16_t port,
405
356
AvahiIfIndex if_index,
406
357
mandos_context *mc){
408
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
359
struct sockaddr_in6 to;
409
360
char *buffer = NULL;
410
361
char *decrypted_buffer;
411
362
size_t buffer_length = 0;
412
363
size_t buffer_capacity = 0;
413
364
ssize_t decrypted_buffer_size;
416
367
char interface[IF_NAMESIZE];
417
368
gnutls_session_t session;
419
ret = init_gnutls_session (mc, &session);
369
gnutls_dh_params_t dh_params;
425
372
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
473
ret = connect(tcp_sd, &to.in, sizeof(to));
418
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
475
420
perror("connect");
479
const char *out = mandos_protocol_version;
482
size_t out_size = strlen(out);
483
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
484
out_size - written));
490
written += (size_t)ret;
491
if(written < out_size){
494
if (out == mandos_protocol_version){
424
ret = initgnutls (mc, &session, &dh_params);
430
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
504
433
fprintf(stderr, "Establishing TLS session with %s\n", ip);
507
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
509
436
ret = gnutls_handshake (session);
511
438
if (ret != GNUTLS_E_SUCCESS){
513
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
440
fprintf(stderr, "\n*** Handshake failed ***\n");
514
441
gnutls_perror (ret);
520
/* Read OpenPGP packet that contains the wanted password */
447
//Retrieve OpenPGP packet that contains the wanted password
523
450
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
546
474
case GNUTLS_E_REHANDSHAKE:
547
475
ret = gnutls_handshake (session);
549
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
477
fprintf(stderr, "\n*** Handshake failed ***\n");
550
478
gnutls_perror (ret);
556
484
fprintf(stderr, "Unknown error while reading data from"
557
" encrypted session with Mandos server\n");
485
" encrypted session with mandos server\n");
559
487
gnutls_bye (session, GNUTLS_SHUT_RDWR);
563
491
buffer_length += (size_t) ret;
568
fprintf(stderr, "Closing TLS session\n");
571
gnutls_bye (session, GNUTLS_SHUT_RDWR);
573
495
if (buffer_length > 0){
574
496
decrypted_buffer_size = pgp_packet_decrypt(buffer,
576
498
&decrypted_buffer,
578
500
if (decrypted_buffer_size >= 0){
580
501
while(written < (size_t) decrypted_buffer_size){
581
502
ret = (int)fwrite (decrypted_buffer + written, 1,
582
503
(size_t)decrypted_buffer_size - written,
611
static void resolve_callback(AvahiSServiceResolver *r,
612
AvahiIfIndex interface,
613
AVAHI_GCC_UNUSED AvahiProtocol protocol,
614
AvahiResolverEvent event,
618
const char *host_name,
619
const AvahiAddress *address,
621
AVAHI_GCC_UNUSED AvahiStringList *txt,
622
AVAHI_GCC_UNUSED AvahiLookupResultFlags
537
static void resolve_callback( AvahiSServiceResolver *r,
538
AvahiIfIndex interface,
539
AVAHI_GCC_UNUSED AvahiProtocol protocol,
540
AvahiResolverEvent event,
544
const char *host_name,
545
const AvahiAddress *address,
547
AVAHI_GCC_UNUSED AvahiStringList *txt,
548
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
625
550
mandos_context *mc = userdata;
626
551
assert(r); /* Spurious warning */
674
598
case AVAHI_BROWSER_FAILURE:
676
fprintf(stderr, "(Avahi browser) %s\n",
600
fprintf(stderr, "(Browser) %s\n",
677
601
avahi_strerror(avahi_server_errno(mc->server)));
678
602
avahi_simple_poll_quit(mc->simple_poll);
681
605
case AVAHI_BROWSER_NEW:
682
/* We ignore the returned Avahi resolver object. In the callback
683
function we free it. If the Avahi server is terminated before
684
the callback function is called the Avahi server will free the
606
/* We ignore the returned resolver object. In the callback
607
function we free it. If the server is terminated before
608
the callback function is called the server will free
609
the resolver for us. */
687
if (!(avahi_s_service_resolver_new(mc->server, interface,
688
protocol, name, type, domain,
611
if (!(avahi_s_service_resolver_new(mc->server, interface, protocol, name,
689
613
AVAHI_PROTO_INET6, 0,
690
614
resolve_callback, mc)))
691
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
692
name, avahi_strerror(avahi_server_errno(mc->server)));
615
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
616
avahi_strerror(avahi_server_errno(mc->server)));
695
619
case AVAHI_BROWSER_REMOVE:
728
int main(int argc, char *argv[]){
649
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
650
AvahiServerConfig config;
729
651
AvahiSServiceBrowser *sb = NULL;
732
int exitcode = EXIT_SUCCESS;
655
int returncode = EXIT_SUCCESS;
733
656
const char *interface = "eth0";
734
657
struct ifreq network;
738
659
char *connect_to = NULL;
739
660
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
740
const char *pubkeyfile = "pubkey.txt";
741
const char *seckeyfile = "seckey.txt";
742
661
mandos_context mc = { .simple_poll = NULL, .server = NULL,
743
662
.dh_bits = 1024, .priority = "SECURE256"};
746
struct argp_option options[] = {
747
{ .name = "debug", .key = 128,
748
.doc = "Debug mode", .group = 3 },
749
{ .name = "connect", .key = 'c',
751
.doc = "Connect directly to a sepcified mandos server",
753
{ .name = "interface", .key = 'i',
755
.doc = "Interface that Avahi will conntect through",
757
{ .name = "keydir", .key = 'd',
759
.doc = "Directory where the openpgp keyring is",
761
{ .name = "seckey", .key = 's',
763
.doc = "Secret openpgp key for gnutls authentication",
765
{ .name = "pubkey", .key = 'p',
767
.doc = "Public openpgp key for gnutls authentication",
769
{ .name = "dh-bits", .key = 129,
771
.doc = "dh-bits to use in gnutls communication",
773
{ .name = "priority", .key = 130,
775
.doc = "GNUTLS priority", .group = 1 },
780
error_t parse_opt (int key, char *arg,
781
struct argp_state *state) {
782
/* Get the INPUT argument from `argp_parse', which we know is
783
a pointer to our plugin list pointer. */
805
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
820
return ARGP_ERR_UNKNOWN;
664
debug_int = debug ? 1 : 0;
666
struct option long_options[] = {
667
{"debug", no_argument, &debug_int, 1},
668
{"connect", required_argument, NULL, 'c'},
669
{"interface", required_argument, NULL, 'i'},
670
{"keydir", required_argument, NULL, 'd'},
671
{"seckey", required_argument, NULL, 's'},
672
{"pubkey", required_argument, NULL, 'p'},
673
{"dh-bits", required_argument, NULL, 'D'},
674
{"priority", required_argument, NULL, 'P'},
677
int option_index = 0;
678
ret = getopt_long (argc, argv, "i:", long_options,
705
mc.dh_bits = (unsigned int) strtol(optarg, NULL, 10);
712
mc.priority = optarg;
825
struct argp argp = { .options = options, .parser = parse_opt,
827
.doc = "Mandos client -- Get and decrypt"
828
" passwords from mandos server" };
829
argp_parse (&argp, argc, argv, 0, 0, NULL);
719
debug = debug_int ? true : false;
832
721
pubkeyfile = combinepath(keydir, pubkeyfile);
833
722
if (pubkeyfile == NULL){
834
723
perror("combinepath");
835
exitcode = EXIT_FAILURE;
724
returncode = EXIT_FAILURE;
839
728
seckeyfile = combinepath(keydir, seckeyfile);
840
729
if (seckeyfile == NULL){
841
730
perror("combinepath");
845
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
847
fprintf(stderr, "init_gnutls_global\n");
864
734
if_index = (AvahiIfIndex) if_nametoindex(interface);
873
743
char *address = strrchr(connect_to, ':');
874
744
if(address == NULL){
875
745
fprintf(stderr, "No colon in address\n");
876
exitcode = EXIT_FAILURE;
880
749
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
882
751
perror("Bad port number");
883
exitcode = EXIT_FAILURE;
887
755
address = connect_to;
888
756
ret = start_mandos_communication(address, port, if_index, &mc);
890
exitcode = EXIT_FAILURE;
892
exitcode = EXIT_SUCCESS;
897
/* If the interface is down, bring it up */
899
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
902
exitcode = EXIT_FAILURE;
905
strcpy(network.ifr_name, interface); /* Spurious warning */
906
ret = ioctl(sd, SIOCGIFFLAGS, &network);
764
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
767
returncode = EXIT_FAILURE;
770
strcpy(network.ifr_name, interface); /* Spurious warning */
771
ret = ioctl(sd, SIOCGIFFLAGS, &network);
774
perror("ioctl SIOCGIFFLAGS");
775
returncode = EXIT_FAILURE;
778
if((network.ifr_flags & IFF_UP) == 0){
779
network.ifr_flags |= IFF_UP;
780
ret = ioctl(sd, SIOCSIFFLAGS, &network);
908
perror("ioctl SIOCGIFFLAGS");
909
exitcode = EXIT_FAILURE;
912
if((network.ifr_flags & IFF_UP) == 0){
913
network.ifr_flags |= IFF_UP;
914
ret = ioctl(sd, SIOCSIFFLAGS, &network);
916
perror("ioctl SIOCSIFFLAGS");
917
exitcode = EXIT_FAILURE;
782
perror("ioctl SIOCSIFFLAGS");
783
returncode = EXIT_FAILURE;
925
790
avahi_set_log_function(empty_log);
928
/* Initialize the pseudo-RNG for Avahi */
793
/* Initialize the psuedo-RNG */
929
794
srand((unsigned int) time(NULL));
931
/* Allocate main Avahi loop object */
932
mc.simple_poll = avahi_simple_poll_new();
933
if (mc.simple_poll == NULL) {
934
fprintf(stderr, "Avahi: Failed to create simple poll"
936
exitcode = EXIT_FAILURE;
941
AvahiServerConfig config;
942
/* Do not publish any local Zeroconf records */
943
avahi_server_config_init(&config);
944
config.publish_hinfo = 0;
945
config.publish_addresses = 0;
946
config.publish_workstation = 0;
947
config.publish_domain = 0;
949
/* Allocate a new server */
950
mc.server = avahi_server_new(avahi_simple_poll_get
951
(mc.simple_poll), &config, NULL,
954
/* Free the Avahi configuration data */
955
avahi_server_config_free(&config);
958
/* Check if creating the Avahi server object succeeded */
959
if (mc.server == NULL) {
960
fprintf(stderr, "Failed to create Avahi server: %s\n",
796
/* Allocate main loop object */
797
if (!(mc.simple_poll = avahi_simple_poll_new())) {
798
fprintf(stderr, "Failed to create simple poll object.\n");
799
returncode = EXIT_FAILURE;
803
/* Do not publish any local records */
804
avahi_server_config_init(&config);
805
config.publish_hinfo = 0;
806
config.publish_addresses = 0;
807
config.publish_workstation = 0;
808
config.publish_domain = 0;
810
/* Allocate a new server */
811
mc.server=avahi_server_new(avahi_simple_poll_get(mc.simple_poll),
812
&config, NULL, NULL, &error);
814
/* Free the configuration data */
815
avahi_server_config_free(&config);
817
/* Check if creating the server object succeeded */
819
fprintf(stderr, "Failed to create server: %s\n",
961
820
avahi_strerror(error));
962
exitcode = EXIT_FAILURE;
821
returncode = EXIT_FAILURE;
966
/* Create the Avahi service browser */
825
/* Create the service browser */
967
826
sb = avahi_s_service_browser_new(mc.server, if_index,
968
827
AVAHI_PROTO_INET6,
969
828
"_mandos._tcp", NULL, 0,
970
829
browse_callback, &mc);
972
831
fprintf(stderr, "Failed to create service browser: %s\n",
973
832
avahi_strerror(avahi_server_errno(mc.server)));
974
exitcode = EXIT_FAILURE;
833
returncode = EXIT_FAILURE;
978
837
/* Run the main loop */
981
fprintf(stderr, "Starting Avahi loop search\n");
840
fprintf(stderr, "Starting avahi loop search\n");
984
843
avahi_simple_poll_loop(mc.simple_poll);
989
848
fprintf(stderr, "%s exiting\n", argv[0]);
992
851
/* Cleanup things */
994
853
avahi_s_service_browser_free(sb);
996
if (mc.server != NULL)
997
856
avahi_server_free(mc.server);
999
if (mc.simple_poll != NULL)
1000
859
avahi_simple_poll_free(mc.simple_poll);
1001
860
free(pubkeyfile);
1002
861
free(seckeyfile);