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- Committer: Teddy Hogeborn
- Date: 2009-01-13 04:35:19 UTC
- Revision ID: teddy@fukt.bsnet.se-20090113043519-0yr39snphoegq8l1
* plugin-runner.c: Only space changes.
* plugins.d/mandos-client.c: - '' -
* plugins.d/password-prompt.c: - '' -
* plugins.d/mandos-client.c: - '' -
* plugins.d/password-prompt.c: - '' -
- files removed:
- debian/watch
- files renamed:
- mandos-ctl => mandos-list
- files modified:
- INSTALL
added
removed
plugins.d/mandos-client.c
36
36
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
37
37
38
38
#include <stdio.h> /* fprintf(), stderr, fwrite(),
39
stdout, ferror(), sscanf(),
40
remove() */
39
stdout, ferror(), sscanf */
41
40
#include <stdint.h> /* uint16_t, uint32_t */
42
41
#include <stddef.h> /* NULL, size_t, ssize_t */
43
42
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
44
43
srand() */
45
#include <stdbool.h> /* bool, false, true */
44
#include <stdbool.h> /* bool, true */
46
45
#include <string.h> /* memset(), strcmp(), strlen(),
47
46
strerror(), asprintf(), strcpy() */
48
#include <sys/ioctl.h> /* ioctl */
47
#include <sys/ioctl.h> /* ioctl */
49
48
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
50
49
sockaddr_in6, PF_INET6,
51
SOCK_STREAM, uid_t, gid_t, open(),
52
opendir(), DIR */
50
SOCK_STREAM, INET6_ADDRSTRLEN,
51
uid_t, gid_t, open(), opendir(),
52
DIR */
53
53
#include <sys/stat.h> /* open() */
54
54
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
55
inet_pton(), connect() */
55
struct in6_addr, inet_pton(),
56
connect() */
56
57
#include <fcntl.h> /* open() */
57
58
#include <dirent.h> /* opendir(), struct dirent, readdir()
58
59
*/
59
#include <inttypes.h> /* PRIu16, intmax_t, SCNdMAX */
60
#include <inttypes.h> /* PRIu16, SCNu16 */
60
61
#include <assert.h> /* assert() */
61
62
#include <errno.h> /* perror(), errno */
62
#include <time.h> /* nanosleep(), time() */
63
#include <time.h> /* time() */
63
64
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
64
65
SIOCSIFFLAGS, if_indextoname(),
65
66
if_nametoindex(), IF_NAMESIZE */
66
#include <netinet/in.h> /* IN6_IS_ADDR_LINKLOCAL,
67
INET_ADDRSTRLEN, INET6_ADDRSTRLEN
68
*/
67
#include <netinet/in.h>
69
68
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
70
69
getuid(), getgid(), setuid(),
71
70
setgid() */
72
71
#include <arpa/inet.h> /* inet_pton(), htons */
73
#include <iso646.h> /* not, or, and */
72
#include <iso646.h> /* not, and, or */
74
73
#include <argp.h> /* struct argp_option, error_t, struct
75
74
argp_state, struct argp,
76
75
argp_parse(), ARGP_KEY_ARG,
77
76
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
78
#include <signal.h> /* sigemptyset(), sigaddset(),
79
sigaction(), SIGTERM, sigaction,
80
sig_atomic_t */
81
82
#ifdef __linux__
83
#include <sys/klog.h> /* klogctl() */
84
#endif /* __linux__ */
85
77
86
78
/* Avahi */
87
79
/* All Avahi types, constants and functions
133
125
gpgme_ctx_t ctx;
134
126
} mandos_context;
135
127
136
/* global context so signal handler can reach it*/
137
mandos_context mc = { .simple_poll = NULL, .server = NULL,
138
.dh_bits = 1024, .priority = "SECURE256"
139
":!CTYPE-X.509:+CTYPE-OPENPGP" };
140
141
128
/*
142
* Make additional room in "buffer" for at least BUFFER_SIZE more
143
* bytes. "buffer_capacity" is how much is currently allocated,
129
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
130
* "buffer_capacity" is how much is currently allocated,
144
131
* "buffer_length" is how much is already used.
145
132
*/
146
size_t incbuffer(char **buffer, size_t buffer_length,
133
size_t adjustbuffer(char **buffer, size_t buffer_length,
147
134
size_t buffer_capacity){
148
135
if(buffer_length + BUFFER_SIZE > buffer_capacity){
149
136
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
158
145
/*
159
146
* Initialize GPGME.
160
147
*/
161
static bool init_gpgme(const char *seckey,
148
static bool init_gpgme(mandos_context *mc, const char *seckey,
162
149
const char *pubkey, const char *tempdir){
163
150
int ret;
164
151
gpgme_error_t rc;
166
153
167
154
168
155
/*
169
* Helper function to insert pub and seckey to the engine keyring.
156
* Helper function to insert pub and seckey to the enigne keyring.
170
157
*/
171
158
bool import_key(const char *filename){
172
159
int fd;
185
172
return false;
186
173
}
187
174
188
rc = gpgme_op_import(mc.ctx, pgp_data);
175
rc = gpgme_op_import(mc->ctx, pgp_data);
189
176
if(rc != GPG_ERR_NO_ERROR){
190
177
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
191
178
gpgme_strsource(rc), gpgme_strerror(rc));
201
188
}
202
189
203
190
if(debug){
204
fprintf(stderr, "Initializing GPGME\n");
191
fprintf(stderr, "Initialize gpgme\n");
205
192
}
206
193
207
194
/* Init GPGME */
234
221
}
235
222
236
223
/* Create new GPGME "context" */
237
rc = gpgme_new(&(mc.ctx));
224
rc = gpgme_new(&(mc->ctx));
238
225
if(rc != GPG_ERR_NO_ERROR){
239
226
fprintf(stderr, "bad gpgme_new: %s: %s\n",
240
227
gpgme_strsource(rc), gpgme_strerror(rc));
252
239
* Decrypt OpenPGP data.
253
240
* Returns -1 on error
254
241
*/
255
static ssize_t pgp_packet_decrypt(const char *cryptotext,
242
static ssize_t pgp_packet_decrypt(const mandos_context *mc,
243
const char *cryptotext,
256
244
size_t crypto_size,
257
245
char **plaintext){
258
246
gpgme_data_t dh_crypto, dh_plain;
285
273
286
274
/* Decrypt data from the cryptotext data buffer to the plaintext
287
275
data buffer */
288
rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
276
rc = gpgme_op_decrypt(mc->ctx, dh_crypto, dh_plain);
289
277
if(rc != GPG_ERR_NO_ERROR){
290
278
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
291
279
gpgme_strsource(rc), gpgme_strerror(rc));
292
280
plaintext_length = -1;
293
281
if(debug){
294
282
gpgme_decrypt_result_t result;
295
result = gpgme_op_decrypt_result(mc.ctx);
283
result = gpgme_op_decrypt_result(mc->ctx);
296
284
if(result == NULL){
297
285
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
298
286
} else {
334
322
335
323
*plaintext = NULL;
336
324
while(true){
337
plaintext_capacity = incbuffer(plaintext,
325
plaintext_capacity = adjustbuffer(plaintext,
338
326
(size_t)plaintext_length,
339
327
plaintext_capacity);
340
328
if(plaintext_capacity == 0){
341
perror("incbuffer");
329
perror("adjustbuffer");
342
330
plaintext_length = -1;
343
331
goto decrypt_end;
344
332
}
376
364
return plaintext_length;
377
365
}
378
366
379
static const char * safer_gnutls_strerror(int value){
380
const char *ret = gnutls_strerror(value); /* Spurious warning from
381
-Wunreachable-code */
367
static const char * safer_gnutls_strerror(int value) {
368
const char *ret = gnutls_strerror(value); /* Spurious warning */
382
369
if(ret == NULL)
383
370
ret = "(unknown)";
384
371
return ret;
390
377
fprintf(stderr, "GnuTLS: %s", string);
391
378
}
392
379
393
static int init_gnutls_global(const char *pubkeyfilename,
380
static int init_gnutls_global(mandos_context *mc,
381
const char *pubkeyfilename,
394
382
const char *seckeyfilename){
395
383
int ret;
396
384
399
387
}
400
388
401
389
ret = gnutls_global_init();
402
if(ret != GNUTLS_E_SUCCESS){
390
if(ret != GNUTLS_E_SUCCESS) {
403
391
fprintf(stderr, "GnuTLS global_init: %s\n",
404
392
safer_gnutls_strerror(ret));
405
393
return -1;
414
402
}
415
403
416
404
/* OpenPGP credentials */
417
gnutls_certificate_allocate_credentials(&mc.cred);
405
gnutls_certificate_allocate_credentials(&mc->cred);
418
406
if(ret != GNUTLS_E_SUCCESS){
419
fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious warning
420
from
421
-Wunreachable-code
422
*/
407
fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious
408
warning */
423
409
safer_gnutls_strerror(ret));
424
410
gnutls_global_deinit();
425
411
return -1;
432
418
}
433
419
434
420
ret = gnutls_certificate_set_openpgp_key_file
435
(mc.cred, pubkeyfilename, seckeyfilename,
421
(mc->cred, pubkeyfilename, seckeyfilename,
436
422
GNUTLS_OPENPGP_FMT_BASE64);
437
if(ret != GNUTLS_E_SUCCESS){
423
if(ret != GNUTLS_E_SUCCESS) {
438
424
fprintf(stderr,
439
425
"Error[%d] while reading the OpenPGP key pair ('%s',"
440
426
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
444
430
}
445
431
446
432
/* GnuTLS server initialization */
447
ret = gnutls_dh_params_init(&mc.dh_params);
448
if(ret != GNUTLS_E_SUCCESS){
433
ret = gnutls_dh_params_init(&mc->dh_params);
434
if(ret != GNUTLS_E_SUCCESS) {
449
435
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
450
436
" %s\n", safer_gnutls_strerror(ret));
451
437
goto globalfail;
452
438
}
453
ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
454
if(ret != GNUTLS_E_SUCCESS){
439
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
440
if(ret != GNUTLS_E_SUCCESS) {
455
441
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
456
442
safer_gnutls_strerror(ret));
457
443
goto globalfail;
458
444
}
459
445
460
gnutls_certificate_set_dh_params(mc.cred, mc.dh_params);
446
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
461
447
462
448
return 0;
463
449
464
450
globalfail:
465
451
466
gnutls_certificate_free_credentials(mc.cred);
452
gnutls_certificate_free_credentials(mc->cred);
467
453
gnutls_global_deinit();
468
gnutls_dh_params_deinit(mc.dh_params);
454
gnutls_dh_params_deinit(mc->dh_params);
469
455
return -1;
470
456
}
471
457
472
static int init_gnutls_session(gnutls_session_t *session){
458
static int init_gnutls_session(mandos_context *mc,
459
gnutls_session_t *session){
473
460
int ret;
474
461
/* GnuTLS session creation */
475
462
ret = gnutls_init(session, GNUTLS_SERVER);
480
467
481
468
{
482
469
const char *err;
483
ret = gnutls_priority_set_direct(*session, mc.priority, &err);
484
if(ret != GNUTLS_E_SUCCESS){
470
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
471
if(ret != GNUTLS_E_SUCCESS) {
485
472
fprintf(stderr, "Syntax error at: %s\n", err);
486
473
fprintf(stderr, "GnuTLS error: %s\n",
487
474
safer_gnutls_strerror(ret));
491
478
}
492
479
493
480
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
494
mc.cred);
495
if(ret != GNUTLS_E_SUCCESS){
481
mc->cred);
482
if(ret != GNUTLS_E_SUCCESS) {
496
483
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
497
484
safer_gnutls_strerror(ret));
498
485
gnutls_deinit(*session);
503
490
gnutls_certificate_server_set_request(*session,
504
491
GNUTLS_CERT_IGNORE);
505
492
506
gnutls_dh_set_prime_bits(*session, mc.dh_bits);
493
gnutls_dh_set_prime_bits(*session, mc->dh_bits);
507
494
508
495
return 0;
509
496
}
515
502
/* Called when a Mandos server is found */
516
503
static int start_mandos_communication(const char *ip, uint16_t port,
517
504
AvahiIfIndex if_index,
518
int af){
505
mandos_context *mc){
519
506
int ret, tcp_sd;
520
507
ssize_t sret;
521
union {
522
struct sockaddr_in in;
523
struct sockaddr_in6 in6;
524
} to;
508
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
525
509
char *buffer = NULL;
526
510
char *decrypted_buffer;
527
511
size_t buffer_length = 0;
529
513
ssize_t decrypted_buffer_size;
530
514
size_t written;
531
515
int retval = 0;
516
char interface[IF_NAMESIZE];
532
517
gnutls_session_t session;
533
int pf; /* Protocol family */
534
535
switch(af){
536
case AF_INET6:
537
pf = PF_INET6;
538
break;
539
case AF_INET:
540
pf = PF_INET;
541
break;
542
default:
543
fprintf(stderr, "Bad address family: %d\n", af);
544
return -1;
545
}
546
547
ret = init_gnutls_session(&session);
518
519
ret = init_gnutls_session(mc, &session);
548
520
if(ret != 0){
549
521
return -1;
550
522
}
551
523
552
524
if(debug){
553
fprintf(stderr, "Setting up a TCP connection to %s, port %" PRIu16
525
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
554
526
"\n", ip, port);
555
527
}
556
528
557
tcp_sd = socket(pf, SOCK_STREAM, 0);
558
if(tcp_sd < 0){
529
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
530
if(tcp_sd < 0) {
559
531
perror("socket");
560
532
return -1;
561
533
}
562
534
535
if(debug){
536
if(if_indextoname((unsigned int)if_index, interface) == NULL){
537
perror("if_indextoname");
538
return -1;
539
}
540
fprintf(stderr, "Binding to interface %s\n", interface);
541
}
542
563
543
memset(&to, 0, sizeof(to));
564
if(af == AF_INET6){
565
to.in6.sin6_family = (uint16_t)af;
566
ret = inet_pton(af, ip, &to.in6.sin6_addr);
567
} else { /* IPv4 */
568
to.in.sin_family = (sa_family_t)af;
569
ret = inet_pton(af, ip, &to.in.sin_addr);
570
}
544
to.in6.sin6_family = AF_INET6;
545
/* It would be nice to have a way to detect if we were passed an
546
IPv4 address here. Now we assume an IPv6 address. */
547
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
571
548
if(ret < 0 ){
572
549
perror("inet_pton");
573
550
return -1;
576
553
fprintf(stderr, "Bad address: %s\n", ip);
577
554
return -1;
578
555
}
579
if(af == AF_INET6){
580
to.in6.sin6_port = htons(port); /* Spurious warnings from
581
-Wconversion and
582
-Wunreachable-code */
583
584
if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
585
(&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
586
-Wunreachable-code*/
587
if(if_index == AVAHI_IF_UNSPEC){
588
fprintf(stderr, "An IPv6 link-local address is incomplete"
589
" without a network interface\n");
590
return -1;
591
}
592
/* Set the network interface number as scope */
593
to.in6.sin6_scope_id = (uint32_t)if_index;
594
}
595
} else {
596
to.in.sin_port = htons(port); /* Spurious warnings from
597
-Wconversion and
598
-Wunreachable-code */
599
}
556
to.in6.sin6_port = htons(port); /* Spurious warning */
557
558
to.in6.sin6_scope_id = (uint32_t)if_index;
600
559
601
560
if(debug){
602
if(af == AF_INET6 and if_index != AVAHI_IF_UNSPEC){
603
char interface[IF_NAMESIZE];
604
if(if_indextoname((unsigned int)if_index, interface) == NULL){
605
perror("if_indextoname");
606
} else {
607
fprintf(stderr, "Connection to: %s%%%s, port %" PRIu16 "\n",
608
ip, interface, port);
609
}
610
} else {
611
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
612
port);
613
}
614
char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
615
INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
616
const char *pcret;
617
if(af == AF_INET6){
618
pcret = inet_ntop(af, &(to.in6.sin6_addr), addrstr,
619
sizeof(addrstr));
620
} else {
621
pcret = inet_ntop(af, &(to.in.sin_addr), addrstr,
622
sizeof(addrstr));
623
}
624
if(pcret == NULL){
561
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
562
port);
563
char addrstr[INET6_ADDRSTRLEN] = "";
564
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
565
sizeof(addrstr)) == NULL){
625
566
perror("inet_ntop");
626
567
} else {
627
568
if(strcmp(addrstr, ip) != 0){
630
571
}
631
572
}
632
573
633
if(af == AF_INET6){
634
ret = connect(tcp_sd, &to.in6, sizeof(to));
635
} else {
636
ret = connect(tcp_sd, &to.in, sizeof(to)); /* IPv4 */
637
}
574
ret = connect(tcp_sd, &to.in, sizeof(to));
638
575
if(ret < 0){
639
576
perror("connect");
640
577
return -1;
686
623
/* Read OpenPGP packet that contains the wanted password */
687
624
688
625
if(debug){
689
fprintf(stderr, "Retrieving OpenPGP encrypted password from %s\n",
626
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
690
627
ip);
691
628
}
692
629
693
630
while(true){
694
buffer_capacity = incbuffer(&buffer, buffer_length,
631
buffer_capacity = adjustbuffer(&buffer, buffer_length,
695
632
buffer_capacity);
696
633
if(buffer_capacity == 0){
697
perror("incbuffer");
634
perror("adjustbuffer");
698
635
retval = -1;
699
636
goto mandos_end;
700
637
}
739
676
gnutls_bye(session, GNUTLS_SHUT_RDWR);
740
677
741
678
if(buffer_length > 0){
742
decrypted_buffer_size = pgp_packet_decrypt(buffer,
679
decrypted_buffer_size = pgp_packet_decrypt(mc, buffer,
743
680
buffer_length,
744
681
&decrypted_buffer);
745
682
if(decrypted_buffer_size >= 0){
780
717
781
718
static void resolve_callback(AvahiSServiceResolver *r,
782
719
AvahiIfIndex interface,
783
AvahiProtocol proto,
720
AVAHI_GCC_UNUSED AvahiProtocol protocol,
784
721
AvahiResolverEvent event,
785
722
const char *name,
786
723
const char *type,
791
728
AVAHI_GCC_UNUSED AvahiStringList *txt,
792
729
AVAHI_GCC_UNUSED AvahiLookupResultFlags
793
730
flags,
794
AVAHI_GCC_UNUSED void* userdata){
731
void* userdata) {
732
mandos_context *mc = userdata;
795
733
assert(r);
796
734
797
735
/* Called whenever a service has been resolved successfully or
798
736
timed out */
799
737
800
switch(event){
738
switch(event) {
801
739
default:
802
740
case AVAHI_RESOLVER_FAILURE:
803
741
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
804
742
" of type '%s' in domain '%s': %s\n", name, type, domain,
805
avahi_strerror(avahi_server_errno(mc.server)));
743
avahi_strerror(avahi_server_errno(mc->server)));
806
744
break;
807
745
808
746
case AVAHI_RESOLVER_FOUND:
811
749
avahi_address_snprint(ip, sizeof(ip), address);
812
750
if(debug){
813
751
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
814
PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
815
ip, (intmax_t)interface, port);
752
PRIu16 ") on port %d\n", name, host_name, ip,
753
interface, port);
816
754
}
817
int ret = start_mandos_communication(ip, port, interface,
818
avahi_proto_to_af(proto));
755
int ret = start_mandos_communication(ip, port, interface, mc);
819
756
if(ret == 0){
820
avahi_simple_poll_quit(mc.simple_poll);
757
avahi_simple_poll_quit(mc->simple_poll);
821
758
}
822
759
}
823
760
}
824
761
avahi_s_service_resolver_free(r);
825
762
}
826
763
827
static void browse_callback(AvahiSServiceBrowser *b,
828
AvahiIfIndex interface,
829
AvahiProtocol protocol,
830
AvahiBrowserEvent event,
831
const char *name,
832
const char *type,
833
const char *domain,
834
AVAHI_GCC_UNUSED AvahiLookupResultFlags
835
flags,
836
AVAHI_GCC_UNUSED void* userdata){
764
static void browse_callback( AvahiSServiceBrowser *b,
765
AvahiIfIndex interface,
766
AvahiProtocol protocol,
767
AvahiBrowserEvent event,
768
const char *name,
769
const char *type,
770
const char *domain,
771
AVAHI_GCC_UNUSED AvahiLookupResultFlags
772
flags,
773
void* userdata) {
774
mandos_context *mc = userdata;
837
775
assert(b);
838
776
839
777
/* Called whenever a new services becomes available on the LAN or
840
778
is removed from the LAN */
841
779
842
switch(event){
780
switch(event) {
843
781
default:
844
782
case AVAHI_BROWSER_FAILURE:
845
783
846
784
fprintf(stderr, "(Avahi browser) %s\n",
847
avahi_strerror(avahi_server_errno(mc.server)));
848
avahi_simple_poll_quit(mc.simple_poll);
785
avahi_strerror(avahi_server_errno(mc->server)));
786
avahi_simple_poll_quit(mc->simple_poll);
849
787
return;
850
788
851
789
case AVAHI_BROWSER_NEW:
854
792
the callback function is called the Avahi server will free the
855
793
resolver for us. */
856
794
857
if(!(avahi_s_service_resolver_new(mc.server, interface,
795
if(!(avahi_s_service_resolver_new(mc->server, interface,
858
796
protocol, name, type, domain,
859
797
AVAHI_PROTO_INET6, 0,
860
resolve_callback, NULL)))
798
resolve_callback, mc)))
861
799
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
862
name, avahi_strerror(avahi_server_errno(mc.server)));
800
name, avahi_strerror(avahi_server_errno(mc->server)));
863
801
break;
864
802
865
803
case AVAHI_BROWSER_REMOVE:
874
812
}
875
813
}
876
814
877
sig_atomic_t quit_now = 0;
878
879
/* stop main loop after sigterm has been called */
880
static void handle_sigterm(__attribute__((unused)) int sig){
881
if(quit_now){
882
return;
883
}
884
quit_now = 1;
885
int old_errno = errno;
886
if(mc.simple_poll != NULL){
887
avahi_simple_poll_quit(mc.simple_poll);
888
}
889
errno = old_errno;
890
}
891
892
815
int main(int argc, char *argv[]){
893
AvahiSServiceBrowser *sb = NULL;
894
int error;
895
int ret;
896
intmax_t tmpmax;
897
int numchars;
898
int exitcode = EXIT_SUCCESS;
899
const char *interface = "eth0";
900
struct ifreq network;
901
int sd;
902
uid_t uid;
903
gid_t gid;
904
char *connect_to = NULL;
905
char tempdir[] = "/tmp/mandosXXXXXX";
906
bool tempdir_created = false;
907
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
908
const char *seckey = PATHDIR "/" SECKEY;
909
const char *pubkey = PATHDIR "/" PUBKEY;
910
911
/* Initialize Mandos context */
912
mc = (mandos_context){ .simple_poll = NULL, .server = NULL,
913
.dh_bits = 1024, .priority = "SECURE256"
914
":!CTYPE-X.509:+CTYPE-OPENPGP" };
915
bool gnutls_initialized = false;
916
bool gpgme_initialized = false;
917
double delay = 2.5;
918
919
struct sigaction old_sigterm_action;
920
struct sigaction sigterm_action = { .sa_handler = handle_sigterm };
921
922
{
923
struct argp_option options[] = {
924
{ .name = "debug", .key = 128,
925
.doc = "Debug mode", .group = 3 },
926
{ .name = "connect", .key = 'c',
927
.arg = "ADDRESS:PORT",
928
.doc = "Connect directly to a specific Mandos server",
929
.group = 1 },
930
{ .name = "interface", .key = 'i',
931
.arg = "NAME",
932
.doc = "Network interface that will be used to search for"
933
" Mandos servers",
934
.group = 1 },
935
{ .name = "seckey", .key = 's',
936
.arg = "FILE",
937
.doc = "OpenPGP secret key file base name",
938
.group = 1 },
939
{ .name = "pubkey", .key = 'p',
940
.arg = "FILE",
941
.doc = "OpenPGP public key file base name",
942
.group = 2 },
943
{ .name = "dh-bits", .key = 129,
944
.arg = "BITS",
945
.doc = "Bit length of the prime number used in the"
946
" Diffie-Hellman key exchange",
947
.group = 2 },
948
{ .name = "priority", .key = 130,
949
.arg = "STRING",
950
.doc = "GnuTLS priority string for the TLS handshake",
951
.group = 1 },
952
{ .name = "delay", .key = 131,
953
.arg = "SECONDS",
954
.doc = "Maximum delay to wait for interface startup",
955
.group = 2 },
956
{ .name = NULL }
957
};
958
959
error_t parse_opt(int key, char *arg,
960
struct argp_state *state){
961
switch(key){
962
case 128: /* --debug */
963
debug = true;
964
break;
965
case 'c': /* --connect */
966
connect_to = arg;
967
break;
968
case 'i': /* --interface */
969
interface = arg;
970
break;
971
case 's': /* --seckey */
972
seckey = arg;
973
break;
974
case 'p': /* --pubkey */
975
pubkey = arg;
976
break;
977
case 129: /* --dh-bits */
978
ret = sscanf(arg, "%" SCNdMAX "%n", &tmpmax, &numchars);
979
if(ret < 1 or tmpmax != (typeof(mc.dh_bits))tmpmax
980
or arg[numchars] != '\0'){
981
fprintf(stderr, "Bad number of DH bits\n");
982
exit(EXIT_FAILURE);
983
}
984
mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
985
break;
986
case 130: /* --priority */
987
mc.priority = arg;
988
break;
989
case 131: /* --delay */
990
ret = sscanf(arg, "%lf%n", &delay, &numchars);
991
if(ret < 1 or arg[numchars] != '\0'){
992
fprintf(stderr, "Bad delay\n");
993
exit(EXIT_FAILURE);
994
}
995
break;
996
case ARGP_KEY_ARG:
997
argp_usage(state);
998
case ARGP_KEY_END:
999
break;
1000
default:
1001
return ARGP_ERR_UNKNOWN;
1002
}
1003
return 0;
1004
}
1005
1006
struct argp argp = { .options = options, .parser = parse_opt,
1007
.args_doc = "",
1008
.doc = "Mandos client -- Get and decrypt"
1009
" passwords from a Mandos server" };
1010
ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
1011
if(ret == ARGP_ERR_UNKNOWN){
1012
fprintf(stderr, "Unknown error while parsing arguments\n");
1013
exitcode = EXIT_FAILURE;
1014
goto end;
1015
}
1016
}
1017
1018
if(not debug){
1019
avahi_set_log_function(empty_log);
1020
}
1021
1022
/* Initialize Avahi early so avahi_simple_poll_quit() can be called
1023
from the signal handler */
1024
/* Initialize the pseudo-RNG for Avahi */
1025
srand((unsigned int) time(NULL));
1026
mc.simple_poll = avahi_simple_poll_new();
1027
if(mc.simple_poll == NULL){
1028
fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1029
exitcode = EXIT_FAILURE;
1030
goto end;
1031
}
1032
1033
sigemptyset(&sigterm_action.sa_mask);
1034
ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1035
if(ret == -1){
1036
perror("sigaddset");
1037
exitcode = EXIT_FAILURE;
1038
goto end;
1039
}
1040
ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1041
if(ret == -1){
1042
perror("sigaddset");
1043
exitcode = EXIT_FAILURE;
1044
goto end;
1045
}
1046
ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1047
if(ret == -1){
1048
perror("sigaddset");
1049
exitcode = EXIT_FAILURE;
1050
goto end;
1051
}
1052
ret = sigaction(SIGTERM, &sigterm_action, &old_sigterm_action);
1053
if(ret == -1){
1054
perror("sigaction");
1055
exitcode = EXIT_FAILURE;
1056
goto end;
1057
}
1058
1059
/* If the interface is down, bring it up */
1060
if(interface[0] != '\0'){
1061
#ifdef __linux__
1062
/* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1063
messages to mess up the prompt */
1064
ret = klogctl(8, NULL, 5);
1065
bool restore_loglevel = true;
1066
if(ret == -1){
1067
restore_loglevel = false;
1068
perror("klogctl");
1069
}
1070
#endif /* __linux__ */
1071
1072
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1073
if(sd < 0){
1074
perror("socket");
1075
exitcode = EXIT_FAILURE;
1076
#ifdef __linux__
1077
if(restore_loglevel){
1078
ret = klogctl(7, NULL, 0);
1079
if(ret == -1){
1080
perror("klogctl");
1081
}
1082
}
1083
#endif /* __linux__ */
1084
goto end;
1085
}
1086
strcpy(network.ifr_name, interface);
1087
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1088
if(ret == -1){
1089
perror("ioctl SIOCGIFFLAGS");
1090
#ifdef __linux__
1091
if(restore_loglevel){
1092
ret = klogctl(7, NULL, 0);
1093
if(ret == -1){
1094
perror("klogctl");
1095
}
1096
}
1097
#endif /* __linux__ */
1098
exitcode = EXIT_FAILURE;
1099
goto end;
1100
}
1101
if((network.ifr_flags & IFF_UP) == 0){
1102
network.ifr_flags |= IFF_UP;
1103
ret = ioctl(sd, SIOCSIFFLAGS, &network);
1104
if(ret == -1){
1105
perror("ioctl SIOCSIFFLAGS");
1106
exitcode = EXIT_FAILURE;
1107
#ifdef __linux__
1108
if(restore_loglevel){
1109
ret = klogctl(7, NULL, 0);
1110
if(ret == -1){
1111
perror("klogctl");
816
AvahiSServiceBrowser *sb = NULL;
817
int error;
818
int ret;
819
int exitcode = EXIT_SUCCESS;
820
const char *interface = "eth0";
821
struct ifreq network;
822
int sd;
823
uid_t uid;
824
gid_t gid;
825
char *connect_to = NULL;
826
char tempdir[] = "/tmp/mandosXXXXXX";
827
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
828
const char *seckey = PATHDIR "/" SECKEY;
829
const char *pubkey = PATHDIR "/" PUBKEY;
830
831
mandos_context mc = { .simple_poll = NULL, .server = NULL,
832
.dh_bits = 1024, .priority = "SECURE256"
833
":!CTYPE-X.509:+CTYPE-OPENPGP" };
834
bool gnutls_initalized = false;
835
bool gpgme_initalized = false;
836
837
{
838
struct argp_option options[] = {
839
{ .name = "debug", .key = 128,
840
.doc = "Debug mode", .group = 3 },
841
{ .name = "connect", .key = 'c',
842
.arg = "ADDRESS:PORT",
843
.doc = "Connect directly to a specific Mandos server",
844
.group = 1 },
845
{ .name = "interface", .key = 'i',
846
.arg = "NAME",
847
.doc = "Interface that will be used to search for Mandos"
848
" servers",
849
.group = 1 },
850
{ .name = "seckey", .key = 's',
851
.arg = "FILE",
852
.doc = "OpenPGP secret key file base name",
853
.group = 1 },
854
{ .name = "pubkey", .key = 'p',
855
.arg = "FILE",
856
.doc = "OpenPGP public key file base name",
857
.group = 2 },
858
{ .name = "dh-bits", .key = 129,
859
.arg = "BITS",
860
.doc = "Bit length of the prime number used in the"
861
" Diffie-Hellman key exchange",
862
.group = 2 },
863
{ .name = "priority", .key = 130,
864
.arg = "STRING",
865
.doc = "GnuTLS priority string for the TLS handshake",
866
.group = 1 },
867
{ .name = NULL }
868
};
869
870
error_t parse_opt(int key, char *arg,
871
struct argp_state *state) {
872
switch(key) {
873
case 128: /* --debug */
874
debug = true;
875
break;
876
case 'c': /* --connect */
877
connect_to = arg;
878
break;
879
case 'i': /* --interface */
880
interface = arg;
881
break;
882
case 's': /* --seckey */
883
seckey = arg;
884
break;
885
case 'p': /* --pubkey */
886
pubkey = arg;
887
break;
888
case 129: /* --dh-bits */
889
ret = sscanf(arg, "%u", &mc.dh_bits);
890
if(ret != 1){
891
fprintf(stderr, "Bad number of DH bits\n");
892
exit(EXIT_FAILURE);
1112
893
}
894
break;
895
case 130: /* --priority */
896
mc.priority = arg;
897
break;
898
case ARGP_KEY_ARG:
899
argp_usage(state);
900
case ARGP_KEY_END:
901
break;
902
default:
903
return ARGP_ERR_UNKNOWN;
1113
904
}
1114
#endif /* __linux__ */
905
return 0;
906
}
907
908
struct argp argp = { .options = options, .parser = parse_opt,
909
.args_doc = "",
910
.doc = "Mandos client -- Get and decrypt"
911
" passwords from a Mandos server" };
912
ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
913
if(ret == ARGP_ERR_UNKNOWN){
914
fprintf(stderr, "Unknown error while parsing arguments\n");
915
exitcode = EXIT_FAILURE;
1115
916
goto end;
1116
917
}
1117
918
}
1118
/* sleep checking until interface is running */
1119
for(int i=0; i < delay * 4; i++){
919
920
/* If the interface is down, bring it up */
921
{
922
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
923
if(sd < 0) {
924
perror("socket");
925
exitcode = EXIT_FAILURE;
926
goto end;
927
}
928
strcpy(network.ifr_name, interface);
1120
929
ret = ioctl(sd, SIOCGIFFLAGS, &network);
1121
930
if(ret == -1){
1122
931
perror("ioctl SIOCGIFFLAGS");
1123
} else if(network.ifr_flags & IFF_RUNNING){
1124
break;
1125
}
1126
struct timespec sleeptime = { .tv_nsec = 250000000 };
1127
ret = nanosleep(&sleeptime, NULL);
1128
if(ret == -1 and errno != EINTR){
1129
perror("nanosleep");
1130
}
1131
}
1132
ret = (int)TEMP_FAILURE_RETRY(close(sd));
1133
if(ret == -1){
1134
perror("close");
1135
}
1136
#ifdef __linux__
1137
if(restore_loglevel){
1138
/* Restores kernel loglevel to default */
1139
ret = klogctl(7, NULL, 0);
932
exitcode = EXIT_FAILURE;
933
goto end;
934
}
935
if((network.ifr_flags & IFF_UP) == 0){
936
network.ifr_flags |= IFF_UP;
937
ret = ioctl(sd, SIOCSIFFLAGS, &network);
938
if(ret == -1){
939
perror("ioctl SIOCSIFFLAGS");
940
exitcode = EXIT_FAILURE;
941
goto end;
942
}
943
}
944
ret = (int)TEMP_FAILURE_RETRY(close(sd));
1140
945
if(ret == -1){
1141
perror("klogctl");
946
perror("close");
1142
947
}
1143
948
}
1144
#endif /* __linux__ */
1145
}
1146
1147
uid = getuid();
1148
gid = getgid();
1149
1150
errno = 0;
1151
setgid(gid);
1152
if(ret == -1){
1153
perror("setgid");
1154
}
1155
1156
ret = setuid(uid);
1157
if(ret == -1){
1158
perror("setuid");
1159
}
1160
1161
ret = init_gnutls_global(pubkey, seckey);
1162
if(ret == -1){
1163
fprintf(stderr, "init_gnutls_global failed\n");
1164
exitcode = EXIT_FAILURE;
1165
goto end;
1166
} else {
1167
gnutls_initialized = true;
1168
}
1169
1170
if(mkdtemp(tempdir) == NULL){
1171
perror("mkdtemp");
1172
goto end;
1173
}
1174
tempdir_created = true;
1175
1176
if(not init_gpgme(pubkey, seckey, tempdir)){
1177
fprintf(stderr, "init_gpgme failed\n");
1178
exitcode = EXIT_FAILURE;
1179
goto end;
1180
} else {
1181
gpgme_initialized = true;
1182
}
1183
1184
if(interface[0] != '\0'){
949
950
uid = getuid();
951
gid = getgid();
952
953
ret = setuid(uid);
954
if(ret == -1){
955
perror("setuid");
956
}
957
958
setgid(gid);
959
if(ret == -1){
960
perror("setgid");
961
}
962
963
ret = init_gnutls_global(&mc, pubkey, seckey);
964
if(ret == -1){
965
fprintf(stderr, "init_gnutls_global failed\n");
966
exitcode = EXIT_FAILURE;
967
goto end;
968
} else {
969
gnutls_initalized = true;
970
}
971
972
if(mkdtemp(tempdir) == NULL){
973
perror("mkdtemp");
974
tempdir[0] = '\0';
975
goto end;
976
}
977
978
if(not init_gpgme(&mc, pubkey, seckey, tempdir)){
979
fprintf(stderr, "gpgme_initalized failed\n");
980
exitcode = EXIT_FAILURE;
981
goto end;
982
} else {
983
gpgme_initalized = true;
984
}
985
1185
986
if_index = (AvahiIfIndex) if_nametoindex(interface);
1186
987
if(if_index == 0){
1187
988
fprintf(stderr, "No such interface: \"%s\"\n", interface);
1188
exitcode = EXIT_FAILURE;
1189
goto end;
1190
}
1191
}
1192
1193
if(connect_to != NULL){
1194
/* Connect directly, do not use Zeroconf */
1195
/* (Mainly meant for debugging) */
1196
char *address = strrchr(connect_to, ':');
1197
if(address == NULL){
1198
fprintf(stderr, "No colon in address\n");
1199
exitcode = EXIT_FAILURE;
1200
goto end;
1201
}
1202
uint16_t port;
1203
ret = sscanf(address+1, "%" SCNdMAX "%n", &tmpmax, &numchars);
1204
if(ret < 1 or tmpmax != (uint16_t)tmpmax
1205
or address[numchars+1] != '\0'){
1206
fprintf(stderr, "Bad port number\n");
1207
exitcode = EXIT_FAILURE;
1208
goto end;
1209
}
1210
port = (uint16_t)tmpmax;
1211
*address = '\0';
1212
address = connect_to;
1213
/* Colon in address indicates IPv6 */
1214
int af;
1215
if(strchr(address, ':') != NULL){
1216
af = AF_INET6;
1217
} else {
1218
af = AF_INET;
1219
}
1220
ret = start_mandos_communication(address, port, if_index, af);
1221
if(ret < 0){
1222
exitcode = EXIT_FAILURE;
1223
} else {
1224
exitcode = EXIT_SUCCESS;
1225
}
1226
goto end;
1227
}
1228
1229
{
1230
AvahiServerConfig config;
1231
/* Do not publish any local Zeroconf records */
1232
avahi_server_config_init(&config);
1233
config.publish_hinfo = 0;
1234
config.publish_addresses = 0;
1235
config.publish_workstation = 0;
1236
config.publish_domain = 0;
1237
1238
/* Allocate a new server */
1239
mc.server = avahi_server_new(avahi_simple_poll_get
1240
(mc.simple_poll), &config, NULL,
1241
NULL, &error);
1242
1243
/* Free the Avahi configuration data */
1244
avahi_server_config_free(&config);
1245
}
1246
1247
/* Check if creating the Avahi server object succeeded */
1248
if(mc.server == NULL){
1249
fprintf(stderr, "Failed to create Avahi server: %s\n",
1250
avahi_strerror(error));
1251
exitcode = EXIT_FAILURE;
1252
goto end;
1253
}
1254
1255
/* Create the Avahi service browser */
1256
sb = avahi_s_service_browser_new(mc.server, if_index,
1257
AVAHI_PROTO_INET6, "_mandos._tcp",
1258
NULL, 0, browse_callback, NULL);
1259
if(sb == NULL){
1260
fprintf(stderr, "Failed to create service browser: %s\n",
1261
avahi_strerror(avahi_server_errno(mc.server)));
1262
exitcode = EXIT_FAILURE;
1263
goto end;
1264
}
1265
1266
/* Run the main loop */
1267
1268
if(debug){
1269
fprintf(stderr, "Starting Avahi loop search\n");
1270
}
1271
1272
avahi_simple_poll_loop(mc.simple_poll);
1273
989
exit(EXIT_FAILURE);
990
}
991
992
if(connect_to != NULL){
993
/* Connect directly, do not use Zeroconf */
994
/* (Mainly meant for debugging) */
995
char *address = strrchr(connect_to, ':');
996
if(address == NULL){
997
fprintf(stderr, "No colon in address\n");
998
exitcode = EXIT_FAILURE;
999
goto end;
1000
}
1001
uint16_t port;
1002
ret = sscanf(address+1, "%" SCNu16, &port);
1003
if(ret != 1){
1004
fprintf(stderr, "Bad port number\n");
1005
exitcode = EXIT_FAILURE;
1006
goto end;
1007
}
1008
*address = '\0';
1009
address = connect_to;
1010
ret = start_mandos_communication(address, port, if_index, &mc);
1011
if(ret < 0){
1012
exitcode = EXIT_FAILURE;
1013
} else {
1014
exitcode = EXIT_SUCCESS;
1015
}
1016
goto end;
1017
}
1018
1019
if(not debug){
1020
avahi_set_log_function(empty_log);
1021
}
1022
1023
/* Initialize the pseudo-RNG for Avahi */
1024
srand((unsigned int) time(NULL));
1025
1026
/* Allocate main Avahi loop object */
1027
mc.simple_poll = avahi_simple_poll_new();
1028
if(mc.simple_poll == NULL) {
1029
fprintf(stderr, "Avahi: Failed to create simple poll"
1030
" object.\n");
1031
exitcode = EXIT_FAILURE;
1032
goto end;
1033
}
1034
1035
{
1036
AvahiServerConfig config;
1037
/* Do not publish any local Zeroconf records */
1038
avahi_server_config_init(&config);
1039
config.publish_hinfo = 0;
1040
config.publish_addresses = 0;
1041
config.publish_workstation = 0;
1042
config.publish_domain = 0;
1043
1044
/* Allocate a new server */
1045
mc.server = avahi_server_new(avahi_simple_poll_get
1046
(mc.simple_poll), &config, NULL,
1047
NULL, &error);
1048
1049
/* Free the Avahi configuration data */
1050
avahi_server_config_free(&config);
1051
}
1052
1053
/* Check if creating the Avahi server object succeeded */
1054
if(mc.server == NULL) {
1055
fprintf(stderr, "Failed to create Avahi server: %s\n",
1056
avahi_strerror(error));
1057
exitcode = EXIT_FAILURE;
1058
goto end;
1059
}
1060
1061
/* Create the Avahi service browser */
1062
sb = avahi_s_service_browser_new(mc.server, if_index,
1063
AVAHI_PROTO_INET6,
1064
"_mandos._tcp", NULL, 0,
1065
browse_callback, &mc);
1066
if(sb == NULL) {
1067
fprintf(stderr, "Failed to create service browser: %s\n",
1068
avahi_strerror(avahi_server_errno(mc.server)));
1069
exitcode = EXIT_FAILURE;
1070
goto end;
1071
}
1072
1073
/* Run the main loop */
1074
1075
if(debug){
1076
fprintf(stderr, "Starting Avahi loop search\n");
1077
}
1078
1079
avahi_simple_poll_loop(mc.simple_poll);
1080
1274
1081
end:
1275
1276
if(debug){
1277
fprintf(stderr, "%s exiting\n", argv[0]);
1278
}
1279
1280
/* Cleanup things */
1281
if(sb != NULL)
1282
avahi_s_service_browser_free(sb);
1283
1284
if(mc.server != NULL)
1285
avahi_server_free(mc.server);
1286
1287
if(mc.simple_poll != NULL)
1288
avahi_simple_poll_free(mc.simple_poll);
1289
1290
if(gnutls_initialized){
1291
gnutls_certificate_free_credentials(mc.cred);
1292
gnutls_global_deinit();
1293
gnutls_dh_params_deinit(mc.dh_params);
1294
}
1295
1296
if(gpgme_initialized){
1297
gpgme_release(mc.ctx);
1298
}
1299
1300
/* Removes the temp directory used by GPGME */
1301
if(tempdir_created){
1302
DIR *d;
1303
struct dirent *direntry;
1304
d = opendir(tempdir);
1305
if(d == NULL){
1306
if(errno != ENOENT){
1307
perror("opendir");
1308
}
1309
} else {
1310
while(true){
1311
direntry = readdir(d);
1312
if(direntry == NULL){
1313
break;
1314
}
1315
/* Skip "." and ".." */
1316
if(direntry->d_name[0] == '.'
1317
and (direntry->d_name[1] == '\0'
1318
or (direntry->d_name[1] == '.'
1319
and direntry->d_name[2] == '\0'))){
1320
continue;
1321
}
1322
char *fullname = NULL;
1323
ret = asprintf(&fullname, "%s/%s", tempdir,
1324
direntry->d_name);
1325
if(ret < 0){
1326
perror("asprintf");
1327
continue;
1328
}
1329
ret = remove(fullname);
1330
if(ret == -1){
1331
fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
1332
strerror(errno));
1333
}
1334
free(fullname);
1335
}
1336
closedir(d);
1337
}
1338
ret = rmdir(tempdir);
1339
if(ret == -1 and errno != ENOENT){
1340
perror("rmdir");
1341
}
1342
}
1343
1344
return exitcode;
1082
1083
if(debug){
1084
fprintf(stderr, "%s exiting\n", argv[0]);
1085
}
1086
1087
/* Cleanup things */
1088
if(sb != NULL)
1089
avahi_s_service_browser_free(sb);
1090
1091
if(mc.server != NULL)
1092
avahi_server_free(mc.server);
1093
1094
if(mc.simple_poll != NULL)
1095
avahi_simple_poll_free(mc.simple_poll);
1096
1097
if(gnutls_initalized){
1098
gnutls_certificate_free_credentials(mc.cred);
1099
gnutls_global_deinit();
1100
gnutls_dh_params_deinit(mc.dh_params);
1101
}
1102
1103
if(gpgme_initalized){
1104
gpgme_release(mc.ctx);
1105
}
1106
1107
/* Removes the temp directory used by GPGME */
1108
if(tempdir[0] != '\0'){
1109
DIR *d;
1110
struct dirent *direntry;
1111
d = opendir(tempdir);
1112
if(d == NULL){
1113
if(errno != ENOENT){
1114
perror("opendir");
1115
}
1116
} else {
1117
while(true){
1118
direntry = readdir(d);
1119
if(direntry == NULL){
1120
break;
1121
}
1122
if(direntry->d_type == DT_REG){
1123
char *fullname = NULL;
1124
ret = asprintf(&fullname, "%s/%s", tempdir,
1125
direntry->d_name);
1126
if(ret < 0){
1127
perror("asprintf");
1128
continue;
1129
}
1130
ret = unlink(fullname);
1131
if(ret == -1){
1132
fprintf(stderr, "unlink(\"%s\"): %s",
1133
fullname, strerror(errno));
1134
}
1135
free(fullname);
1136
}
1137
}
1138
closedir(d);
1139
}
1140
ret = rmdir(tempdir);
1141
if(ret == -1 and errno != ENOENT){
1142
perror("rmdir");
1143
}
1144
}
1145
1146
return exitcode;
1345
1147
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0