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237.2.29
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: plugins.d/mandos-client.c
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- Committer: Teddy Hogeborn
- Date: 2009-01-13 04:35:19 UTC
- mto: (24.1.123 mandos) (237.4.2 mandos-pipe-ipc) (299.1.1 release) (300.1.1 release) (301.1.1 release)
- mto: This revision was merged to the branch mainline in revision 245.
- 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 added:
- .bzr-builddeb
- debian
- debian/po
- files removed:
- network-protocol.txt
- files renamed:
- mandos-client.c => plugin-runner.c
- plugins.d/password-request.c => plugins.d/mandos-client.c
- files modified:
- Makefile
added
removed
plugins.d/mandos-client.c
1
1
/* -*- coding: utf-8 -*- */
2
2
/*
3
* Mandos client - get and decrypt data from a Mandos server
3
* Mandos-client - get and decrypt data from a Mandos server
4
4
*
5
5
* This program is partly derived from an example program for an Avahi
6
6
* service browser, downloaded from
9
9
* "browse_callback", and parts of "main".
10
10
*
11
11
* Everything else is
12
* Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
12
* Copyright © 2008,2009 Teddy Hogeborn
13
* Copyright © 2008,2009 Björn Påhlsson
13
14
*
14
15
* This program is free software: you can redistribute it and/or
15
16
* modify it under the terms of the GNU General Public License as
32
33
#define _LARGEFILE_SOURCE
33
34
#define _FILE_OFFSET_BITS 64
34
35
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
36
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
36
37
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 */
38
#include <stdio.h> /* fprintf(), stderr, fwrite(),
39
stdout, ferror(), sscanf */
40
#include <stdint.h> /* uint16_t, uint32_t */
41
#include <stddef.h> /* NULL, size_t, ssize_t */
42
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
43
srand() */
44
#include <stdbool.h> /* bool, true */
45
#include <string.h> /* memset(), strcmp(), strlen(),
46
strerror(), asprintf(), strcpy() */
47
#include <sys/ioctl.h> /* ioctl */
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(),
52
DIR */
53
#include <sys/stat.h> /* open() */
54
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
55
struct in6_addr, inet_pton(),
56
connect() */
57
#include <fcntl.h> /* open() */
58
#include <dirent.h> /* opendir(), struct dirent, readdir()
59
*/
60
#include <inttypes.h> /* PRIu16, SCNu16 */
61
#include <assert.h> /* assert() */
62
#include <errno.h> /* perror(), errno */
63
#include <time.h> /* time() */
44
64
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
45
SIOCSIFFLAGS */
65
SIOCSIFFLAGS, if_indextoname(),
66
if_nametoindex(), IF_NAMESIZE */
67
#include <netinet/in.h>
68
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
69
getuid(), getgid(), setuid(),
70
setgid() */
71
#include <arpa/inet.h> /* inet_pton(), htons */
72
#include <iso646.h> /* not, and, or */
73
#include <argp.h> /* struct argp_option, error_t, struct
74
argp_state, struct argp,
75
argp_parse(), ARGP_KEY_ARG,
76
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
46
77
78
/* Avahi */
79
/* All Avahi types, constants and functions
80
Avahi*, avahi_*,
81
AVAHI_* */
47
82
#include <avahi-core/core.h>
48
83
#include <avahi-core/lookup.h>
49
84
#include <avahi-core/log.h>
51
86
#include <avahi-common/malloc.h>
52
87
#include <avahi-common/error.h>
53
88
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 */
89
/* GnuTLS */
90
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and
91
functions:
92
gnutls_*
93
init_gnutls_session(),
94
GNUTLS_* */
95
#include <gnutls/openpgp.h>
96
/* gnutls_certificate_set_openpgp_key_file(),
97
GNUTLS_OPENPGP_FMT_BASE64 */
60
98
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
99
/* GPGME */
72
#include <errno.h> /* perror() */
73
#include <gpgme.h>
100
#include <gpgme.h> /* All GPGME types, constants and
101
functions:
102
gpgme_*
103
GPGME_PROTOCOL_OpenPGP,
104
GPG_ERR_NO_* */
74
105
75
106
#define BUFFER_SIZE 256
76
107
108
#define PATHDIR "/conf/conf.d/mandos"
109
#define SECKEY "seckey.txt"
110
#define PUBKEY "pubkey.txt"
111
77
112
bool debug = false;
78
static const char *keydir = "/conf/conf.d/mandos";
79
113
static const char mandos_protocol_version[] = "1";
80
const char *argp_program_version = "mandosclient 0.9";
114
const char *argp_program_version = "mandos-client " VERSION;
81
115
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
82
116
83
117
/* Used for passing in values through the Avahi callback functions */
88
122
unsigned int dh_bits;
89
123
gnutls_dh_params_t dh_params;
90
124
const char *priority;
125
gpgme_ctx_t ctx;
91
126
} mandos_context;
92
127
93
128
/*
97
132
*/
98
133
size_t adjustbuffer(char **buffer, size_t buffer_length,
99
134
size_t buffer_capacity){
100
if (buffer_length + BUFFER_SIZE > buffer_capacity){
135
if(buffer_length + BUFFER_SIZE > buffer_capacity){
101
136
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
102
if (buffer == NULL){
137
if(buffer == NULL){
103
138
return 0;
104
139
}
105
140
buffer_capacity += BUFFER_SIZE;
108
143
}
109
144
110
145
/*
111
* Decrypt OpenPGP data using keyrings in HOMEDIR.
112
* Returns -1 on error
146
* Initialize GPGME.
113
147
*/
114
static ssize_t pgp_packet_decrypt (const char *cryptotext,
115
size_t crypto_size,
116
char **plaintext,
117
const char *homedir){
118
gpgme_data_t dh_crypto, dh_plain;
119
gpgme_ctx_t ctx;
148
static bool init_gpgme(mandos_context *mc, const char *seckey,
149
const char *pubkey, const char *tempdir){
150
int ret;
120
151
gpgme_error_t rc;
121
ssize_t ret;
122
size_t plaintext_capacity = 0;
123
ssize_t plaintext_length = 0;
124
152
gpgme_engine_info_t engine_info;
125
153
126
if (debug){
127
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
154
155
/*
156
* Helper function to insert pub and seckey to the enigne keyring.
157
*/
158
bool import_key(const char *filename){
159
int fd;
160
gpgme_data_t pgp_data;
161
162
fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
163
if(fd == -1){
164
perror("open");
165
return false;
166
}
167
168
rc = gpgme_data_new_from_fd(&pgp_data, fd);
169
if(rc != GPG_ERR_NO_ERROR){
170
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
171
gpgme_strsource(rc), gpgme_strerror(rc));
172
return false;
173
}
174
175
rc = gpgme_op_import(mc->ctx, pgp_data);
176
if(rc != GPG_ERR_NO_ERROR){
177
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
178
gpgme_strsource(rc), gpgme_strerror(rc));
179
return false;
180
}
181
182
ret = (int)TEMP_FAILURE_RETRY(close(fd));
183
if(ret == -1){
184
perror("close");
185
}
186
gpgme_data_release(pgp_data);
187
return true;
188
}
189
190
if(debug){
191
fprintf(stderr, "Initialize gpgme\n");
128
192
}
129
193
130
194
/* Init GPGME */
131
195
gpgme_check_version(NULL);
132
196
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
133
if (rc != GPG_ERR_NO_ERROR){
197
if(rc != GPG_ERR_NO_ERROR){
134
198
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
135
199
gpgme_strsource(rc), gpgme_strerror(rc));
136
return -1;
200
return false;
137
201
}
138
202
139
/* Set GPGME home directory for the OpenPGP engine only */
140
rc = gpgme_get_engine_info (&engine_info);
141
if (rc != GPG_ERR_NO_ERROR){
203
/* Set GPGME home directory for the OpenPGP engine only */
204
rc = gpgme_get_engine_info(&engine_info);
205
if(rc != GPG_ERR_NO_ERROR){
142
206
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
143
207
gpgme_strsource(rc), gpgme_strerror(rc));
144
return -1;
208
return false;
145
209
}
146
210
while(engine_info != NULL){
147
211
if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
148
212
gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
149
engine_info->file_name, homedir);
213
engine_info->file_name, tempdir);
150
214
break;
151
215
}
152
216
engine_info = engine_info->next;
153
217
}
154
218
if(engine_info == NULL){
155
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
156
return -1;
219
fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
220
return false;
221
}
222
223
/* Create new GPGME "context" */
224
rc = gpgme_new(&(mc->ctx));
225
if(rc != GPG_ERR_NO_ERROR){
226
fprintf(stderr, "bad gpgme_new: %s: %s\n",
227
gpgme_strsource(rc), gpgme_strerror(rc));
228
return false;
229
}
230
231
if(not import_key(pubkey) or not import_key(seckey)){
232
return false;
233
}
234
235
return true;
236
}
237
238
/*
239
* Decrypt OpenPGP data.
240
* Returns -1 on error
241
*/
242
static ssize_t pgp_packet_decrypt(const mandos_context *mc,
243
const char *cryptotext,
244
size_t crypto_size,
245
char **plaintext){
246
gpgme_data_t dh_crypto, dh_plain;
247
gpgme_error_t rc;
248
ssize_t ret;
249
size_t plaintext_capacity = 0;
250
ssize_t plaintext_length = 0;
251
252
if(debug){
253
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
157
254
}
158
255
159
256
/* Create new GPGME data buffer from memory cryptotext */
160
257
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
161
258
0);
162
if (rc != GPG_ERR_NO_ERROR){
259
if(rc != GPG_ERR_NO_ERROR){
163
260
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
164
261
gpgme_strsource(rc), gpgme_strerror(rc));
165
262
return -1;
167
264
168
265
/* Create new empty GPGME data buffer for the plaintext */
169
266
rc = gpgme_data_new(&dh_plain);
170
if (rc != GPG_ERR_NO_ERROR){
267
if(rc != GPG_ERR_NO_ERROR){
171
268
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
172
269
gpgme_strsource(rc), gpgme_strerror(rc));
173
270
gpgme_data_release(dh_crypto);
174
271
return -1;
175
272
}
176
273
177
/* Create new GPGME "context" */
178
rc = gpgme_new(&ctx);
179
if (rc != GPG_ERR_NO_ERROR){
180
fprintf(stderr, "bad gpgme_new: %s: %s\n",
181
gpgme_strsource(rc), gpgme_strerror(rc));
182
plaintext_length = -1;
183
goto decrypt_end;
184
}
185
186
274
/* Decrypt data from the cryptotext data buffer to the plaintext
187
275
data buffer */
188
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
189
if (rc != GPG_ERR_NO_ERROR){
276
rc = gpgme_op_decrypt(mc->ctx, dh_crypto, dh_plain);
277
if(rc != GPG_ERR_NO_ERROR){
190
278
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
191
279
gpgme_strsource(rc), gpgme_strerror(rc));
192
280
plaintext_length = -1;
281
if(debug){
282
gpgme_decrypt_result_t result;
283
result = gpgme_op_decrypt_result(mc->ctx);
284
if(result == NULL){
285
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
286
} else {
287
fprintf(stderr, "Unsupported algorithm: %s\n",
288
result->unsupported_algorithm);
289
fprintf(stderr, "Wrong key usage: %u\n",
290
result->wrong_key_usage);
291
if(result->file_name != NULL){
292
fprintf(stderr, "File name: %s\n", result->file_name);
293
}
294
gpgme_recipient_t recipient;
295
recipient = result->recipients;
296
if(recipient){
297
while(recipient != NULL){
298
fprintf(stderr, "Public key algorithm: %s\n",
299
gpgme_pubkey_algo_name(recipient->pubkey_algo));
300
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
301
fprintf(stderr, "Secret key available: %s\n",
302
recipient->status == GPG_ERR_NO_SECKEY
303
? "No" : "Yes");
304
recipient = recipient->next;
305
}
306
}
307
}
308
}
193
309
goto decrypt_end;
194
310
}
195
311
197
313
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
198
314
}
199
315
200
if (debug){
201
gpgme_decrypt_result_t result;
202
result = gpgme_op_decrypt_result(ctx);
203
if (result == NULL){
204
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
205
} else {
206
fprintf(stderr, "Unsupported algorithm: %s\n",
207
result->unsupported_algorithm);
208
fprintf(stderr, "Wrong key usage: %d\n",
209
result->wrong_key_usage);
210
if(result->file_name != NULL){
211
fprintf(stderr, "File name: %s\n", result->file_name);
212
}
213
gpgme_recipient_t recipient;
214
recipient = result->recipients;
215
if(recipient){
216
while(recipient != NULL){
217
fprintf(stderr, "Public key algorithm: %s\n",
218
gpgme_pubkey_algo_name(recipient->pubkey_algo));
219
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
220
fprintf(stderr, "Secret key available: %s\n",
221
recipient->status == GPG_ERR_NO_SECKEY
222
? "No" : "Yes");
223
recipient = recipient->next;
224
}
225
}
226
}
227
}
228
229
316
/* Seek back to the beginning of the GPGME plaintext data buffer */
230
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
231
perror("pgpme_data_seek");
317
if(gpgme_data_seek(dh_plain, (off_t)0, SEEK_SET) == -1){
318
perror("gpgme_data_seek");
232
319
plaintext_length = -1;
233
320
goto decrypt_end;
234
321
}
238
325
plaintext_capacity = adjustbuffer(plaintext,
239
326
(size_t)plaintext_length,
240
327
plaintext_capacity);
241
if (plaintext_capacity == 0){
328
if(plaintext_capacity == 0){
242
329
perror("adjustbuffer");
243
330
plaintext_length = -1;
244
331
goto decrypt_end;
247
334
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
248
335
BUFFER_SIZE);
249
336
/* Print the data, if any */
250
if (ret == 0){
337
if(ret == 0){
251
338
/* EOF */
252
339
break;
253
340
}
258
345
}
259
346
plaintext_length += ret;
260
347
}
261
348
262
349
if(debug){
263
350
fprintf(stderr, "Decrypted password is: ");
264
351
for(ssize_t i = 0; i < plaintext_length; i++){
277
364
return plaintext_length;
278
365
}
279
366
280
static const char * safer_gnutls_strerror (int value) {
281
const char *ret = gnutls_strerror (value);
282
if (ret == NULL)
367
static const char * safer_gnutls_strerror(int value) {
368
const char *ret = gnutls_strerror(value); /* Spurious warning */
369
if(ret == NULL)
283
370
ret = "(unknown)";
284
371
return ret;
285
372
}
291
378
}
292
379
293
380
static int init_gnutls_global(mandos_context *mc,
294
const char *pubkeyfile,
295
const char *seckeyfile){
381
const char *pubkeyfilename,
382
const char *seckeyfilename){
296
383
int ret;
297
384
298
385
if(debug){
299
386
fprintf(stderr, "Initializing GnuTLS\n");
300
387
}
301
302
if ((ret = gnutls_global_init ())
303
!= GNUTLS_E_SUCCESS) {
304
fprintf (stderr, "GnuTLS global_init: %s\n",
305
safer_gnutls_strerror(ret));
388
389
ret = gnutls_global_init();
390
if(ret != GNUTLS_E_SUCCESS) {
391
fprintf(stderr, "GnuTLS global_init: %s\n",
392
safer_gnutls_strerror(ret));
306
393
return -1;
307
394
}
308
395
309
if (debug){
396
if(debug){
310
397
/* "Use a log level over 10 to enable all debugging options."
311
398
* - GnuTLS manual
312
399
*/
315
402
}
316
403
317
404
/* OpenPGP credentials */
318
if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))
319
!= GNUTLS_E_SUCCESS) {
320
fprintf (stderr, "GnuTLS memory error: %s\n",
321
safer_gnutls_strerror(ret));
322
gnutls_global_deinit ();
405
gnutls_certificate_allocate_credentials(&mc->cred);
406
if(ret != GNUTLS_E_SUCCESS){
407
fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious
408
warning */
409
safer_gnutls_strerror(ret));
410
gnutls_global_deinit();
323
411
return -1;
324
412
}
325
413
326
414
if(debug){
327
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
328
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
329
seckeyfile);
415
fprintf(stderr, "Attempting to use OpenPGP public key %s and"
416
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
417
seckeyfilename);
330
418
}
331
419
332
420
ret = gnutls_certificate_set_openpgp_key_file
333
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
334
if (ret != GNUTLS_E_SUCCESS) {
421
(mc->cred, pubkeyfilename, seckeyfilename,
422
GNUTLS_OPENPGP_FMT_BASE64);
423
if(ret != GNUTLS_E_SUCCESS) {
335
424
fprintf(stderr,
336
425
"Error[%d] while reading the OpenPGP key pair ('%s',"
337
" '%s')\n", ret, pubkeyfile, seckeyfile);
338
fprintf(stdout, "The GnuTLS error is: %s\n",
426
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
427
fprintf(stderr, "The GnuTLS error is: %s\n",
339
428
safer_gnutls_strerror(ret));
340
429
goto globalfail;
341
430
}
342
431
343
432
/* GnuTLS server initialization */
344
433
ret = gnutls_dh_params_init(&mc->dh_params);
345
if (ret != GNUTLS_E_SUCCESS) {
346
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
347
" %s\n", safer_gnutls_strerror(ret));
434
if(ret != GNUTLS_E_SUCCESS) {
435
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
436
" %s\n", safer_gnutls_strerror(ret));
348
437
goto globalfail;
349
438
}
350
439
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
351
if (ret != GNUTLS_E_SUCCESS) {
352
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
353
safer_gnutls_strerror(ret));
440
if(ret != GNUTLS_E_SUCCESS) {
441
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
442
safer_gnutls_strerror(ret));
354
443
goto globalfail;
355
444
}
356
445
357
446
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
358
447
359
448
return 0;
360
449
361
450
globalfail:
362
363
gnutls_certificate_free_credentials (mc->cred);
364
gnutls_global_deinit ();
451
452
gnutls_certificate_free_credentials(mc->cred);
453
gnutls_global_deinit();
454
gnutls_dh_params_deinit(mc->dh_params);
365
455
return -1;
366
367
456
}
368
457
369
458
static int init_gnutls_session(mandos_context *mc,
371
460
int ret;
372
461
/* GnuTLS session creation */
373
462
ret = gnutls_init(session, GNUTLS_SERVER);
374
if (ret != GNUTLS_E_SUCCESS){
463
if(ret != GNUTLS_E_SUCCESS){
375
464
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
376
465
safer_gnutls_strerror(ret));
377
466
}
379
468
{
380
469
const char *err;
381
470
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
382
if (ret != GNUTLS_E_SUCCESS) {
471
if(ret != GNUTLS_E_SUCCESS) {
383
472
fprintf(stderr, "Syntax error at: %s\n", err);
384
473
fprintf(stderr, "GnuTLS error: %s\n",
385
474
safer_gnutls_strerror(ret));
386
gnutls_deinit (*session);
475
gnutls_deinit(*session);
387
476
return -1;
388
477
}
389
478
}
390
479
391
480
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
392
481
mc->cred);
393
if (ret != GNUTLS_E_SUCCESS) {
482
if(ret != GNUTLS_E_SUCCESS) {
394
483
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
395
484
safer_gnutls_strerror(ret));
396
gnutls_deinit (*session);
485
gnutls_deinit(*session);
397
486
return -1;
398
487
}
399
488
400
489
/* ignore client certificate if any. */
401
gnutls_certificate_server_set_request (*session,
402
GNUTLS_CERT_IGNORE);
490
gnutls_certificate_server_set_request(*session,
491
GNUTLS_CERT_IGNORE);
403
492
404
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
493
gnutls_dh_set_prime_bits(*session, mc->dh_bits);
405
494
406
495
return 0;
407
496
}
415
504
AvahiIfIndex if_index,
416
505
mandos_context *mc){
417
506
int ret, tcp_sd;
507
ssize_t sret;
418
508
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
419
509
char *buffer = NULL;
420
510
char *decrypted_buffer;
426
516
char interface[IF_NAMESIZE];
427
517
gnutls_session_t session;
428
518
429
ret = init_gnutls_session (mc, &session);
430
if (ret != 0){
519
ret = init_gnutls_session(mc, &session);
520
if(ret != 0){
431
521
return -1;
432
522
}
433
523
434
524
if(debug){
435
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
436
ip, port);
525
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
526
"\n", ip, port);
437
527
}
438
528
439
529
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
441
531
perror("socket");
442
532
return -1;
443
533
}
444
534
445
535
if(debug){
446
536
if(if_indextoname((unsigned int)if_index, interface) == NULL){
447
537
perror("if_indextoname");
450
540
fprintf(stderr, "Binding to interface %s\n", interface);
451
541
}
452
542
453
memset(&to,0,sizeof(to)); /* Spurious warning */
543
memset(&to, 0, sizeof(to));
454
544
to.in6.sin6_family = AF_INET6;
455
545
/* It would be nice to have a way to detect if we were passed an
456
546
IPv4 address here. Now we assume an IPv6 address. */
457
547
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
458
if (ret < 0 ){
548
if(ret < 0 ){
459
549
perror("inet_pton");
460
550
return -1;
461
551
}
463
553
fprintf(stderr, "Bad address: %s\n", ip);
464
554
return -1;
465
555
}
466
to.in6.sin6_port = htons(port); /* Spurious warning */
556
to.in6.sin6_port = htons(port); /* Spurious warning */
467
557
468
558
to.in6.sin6_scope_id = (uint32_t)if_index;
469
559
470
560
if(debug){
471
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
561
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
562
port);
472
563
char addrstr[INET6_ADDRSTRLEN] = "";
473
564
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
474
565
sizeof(addrstr)) == NULL){
481
572
}
482
573
483
574
ret = connect(tcp_sd, &to.in, sizeof(to));
484
if (ret < 0){
575
if(ret < 0){
485
576
perror("connect");
486
577
return -1;
487
578
}
488
579
489
580
const char *out = mandos_protocol_version;
490
581
written = 0;
491
while (true){
582
while(true){
492
583
size_t out_size = strlen(out);
493
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
584
ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
494
585
out_size - written));
495
if (ret == -1){
586
if(ret == -1){
496
587
perror("write");
497
588
retval = -1;
498
589
goto mandos_end;
501
592
if(written < out_size){
502
593
continue;
503
594
} else {
504
if (out == mandos_protocol_version){
595
if(out == mandos_protocol_version){
505
596
written = 0;
506
597
out = "\r\n";
507
598
} else {
509
600
}
510
601
}
511
602
}
512
603
513
604
if(debug){
514
605
fprintf(stderr, "Establishing TLS session with %s\n", ip);
515
606
}
516
607
517
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
518
519
ret = gnutls_handshake (session);
520
521
if (ret != GNUTLS_E_SUCCESS){
608
gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);
609
610
do{
611
ret = gnutls_handshake(session);
612
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
613
614
if(ret != GNUTLS_E_SUCCESS){
522
615
if(debug){
523
616
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
524
gnutls_perror (ret);
617
gnutls_perror(ret);
525
618
}
526
619
retval = -1;
527
620
goto mandos_end;
533
626
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
534
627
ip);
535
628
}
536
629
537
630
while(true){
538
631
buffer_capacity = adjustbuffer(&buffer, buffer_length,
539
632
buffer_capacity);
540
if (buffer_capacity == 0){
633
if(buffer_capacity == 0){
541
634
perror("adjustbuffer");
542
635
retval = -1;
543
636
goto mandos_end;
544
637
}
545
638
546
ret = gnutls_record_recv(session, buffer+buffer_length,
547
BUFFER_SIZE);
548
if (ret == 0){
639
sret = gnutls_record_recv(session, buffer+buffer_length,
640
BUFFER_SIZE);
641
if(sret == 0){
549
642
break;
550
643
}
551
if (ret < 0){
552
switch(ret){
644
if(sret < 0){
645
switch(sret){
553
646
case GNUTLS_E_INTERRUPTED:
554
647
case GNUTLS_E_AGAIN:
555
648
break;
556
649
case GNUTLS_E_REHANDSHAKE:
557
ret = gnutls_handshake (session);
558
if (ret < 0){
650
do{
651
ret = gnutls_handshake(session);
652
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
653
if(ret < 0){
559
654
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
560
gnutls_perror (ret);
655
gnutls_perror(ret);
561
656
retval = -1;
562
657
goto mandos_end;
563
658
}
566
661
fprintf(stderr, "Unknown error while reading data from"
567
662
" encrypted session with Mandos server\n");
568
663
retval = -1;
569
gnutls_bye (session, GNUTLS_SHUT_RDWR);
664
gnutls_bye(session, GNUTLS_SHUT_RDWR);
570
665
goto mandos_end;
571
666
}
572
667
} else {
573
buffer_length += (size_t) ret;
668
buffer_length += (size_t) sret;
574
669
}
575
670
}
576
671
578
673
fprintf(stderr, "Closing TLS session\n");
579
674
}
580
675
581
gnutls_bye (session, GNUTLS_SHUT_RDWR);
676
gnutls_bye(session, GNUTLS_SHUT_RDWR);
582
677
583
if (buffer_length > 0){
584
decrypted_buffer_size = pgp_packet_decrypt(buffer,
678
if(buffer_length > 0){
679
decrypted_buffer_size = pgp_packet_decrypt(mc, buffer,
585
680
buffer_length,
586
&decrypted_buffer,
587
keydir);
588
if (decrypted_buffer_size >= 0){
681
&decrypted_buffer);
682
if(decrypted_buffer_size >= 0){
589
683
written = 0;
590
684
while(written < (size_t) decrypted_buffer_size){
591
ret = (int)fwrite (decrypted_buffer + written, 1,
592
(size_t)decrypted_buffer_size - written,
593
stdout);
685
ret = (int)fwrite(decrypted_buffer + written, 1,
686
(size_t)decrypted_buffer_size - written,
687
stdout);
594
688
if(ret == 0 and ferror(stdout)){
595
689
if(debug){
596
690
fprintf(stderr, "Error writing encrypted data: %s\n",
605
699
} else {
606
700
retval = -1;
607
701
}
702
} else {
703
retval = -1;
608
704
}
609
705
610
706
/* Shutdown procedure */
611
707
612
708
mandos_end:
613
709
free(buffer);
614
close(tcp_sd);
615
gnutls_deinit (session);
710
ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
711
if(ret == -1){
712
perror("close");
713
}
714
gnutls_deinit(session);
616
715
return retval;
617
716
}
618
717
631
730
flags,
632
731
void* userdata) {
633
732
mandos_context *mc = userdata;
634
assert(r); /* Spurious warning */
733
assert(r);
635
734
636
735
/* Called whenever a service has been resolved successfully or
637
736
timed out */
638
737
639
switch (event) {
738
switch(event) {
640
739
default:
641
740
case AVAHI_RESOLVER_FAILURE:
642
741
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
649
748
char ip[AVAHI_ADDRESS_STR_MAX];
650
749
avahi_address_snprint(ip, sizeof(ip), address);
651
750
if(debug){
652
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %d) on"
653
" port %d\n", name, host_name, ip, interface, port);
751
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
752
PRIu16 ") on port %d\n", name, host_name, ip,
753
interface, port);
654
754
}
655
755
int ret = start_mandos_communication(ip, port, interface, mc);
656
if (ret == 0){
657
exit(EXIT_SUCCESS);
756
if(ret == 0){
757
avahi_simple_poll_quit(mc->simple_poll);
658
758
}
659
759
}
660
760
}
672
772
flags,
673
773
void* userdata) {
674
774
mandos_context *mc = userdata;
675
assert(b); /* Spurious warning */
775
assert(b);
676
776
677
777
/* Called whenever a new services becomes available on the LAN or
678
778
is removed from the LAN */
679
779
680
switch (event) {
780
switch(event) {
681
781
default:
682
782
case AVAHI_BROWSER_FAILURE:
683
783
692
792
the callback function is called the Avahi server will free the
693
793
resolver for us. */
694
794
695
if (!(avahi_s_service_resolver_new(mc->server, interface,
795
if(!(avahi_s_service_resolver_new(mc->server, interface,
696
796
protocol, name, type, domain,
697
797
AVAHI_PROTO_INET6, 0,
698
798
resolve_callback, mc)))
712
812
}
713
813
}
714
814
715
/* Combines file name and path and returns the malloced new
716
string. some sane checks could/should be added */
717
static const char *combinepath(const char *first, const char *second){
718
size_t f_len = strlen(first);
719
size_t s_len = strlen(second);
720
char *tmp = malloc(f_len + s_len + 2);
721
if (tmp == NULL){
722
return NULL;
723
}
724
if(f_len > 0){
725
memcpy(tmp, first, f_len); /* Spurious warning */
726
}
727
tmp[f_len] = '/';
728
if(s_len > 0){
729
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
730
}
731
tmp[f_len + 1 + s_len] = '\0';
732
return tmp;
733
}
734
735
736
815
int main(int argc, char *argv[]){
737
816
AvahiSServiceBrowser *sb = NULL;
738
817
int error;
744
823
uid_t uid;
745
824
gid_t gid;
746
825
char *connect_to = NULL;
826
char tempdir[] = "/tmp/mandosXXXXXX";
747
827
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
748
const char *pubkeyfile = "pubkey.txt";
749
const char *seckeyfile = "seckey.txt";
828
const char *seckey = PATHDIR "/" SECKEY;
829
const char *pubkey = PATHDIR "/" PUBKEY;
830
750
831
mandos_context mc = { .simple_poll = NULL, .server = NULL,
751
.dh_bits = 1024, .priority = "SECURE256"};
832
.dh_bits = 1024, .priority = "SECURE256"
833
":!CTYPE-X.509:+CTYPE-OPENPGP" };
752
834
bool gnutls_initalized = false;
835
bool gpgme_initalized = false;
753
836
754
837
{
755
838
struct argp_option options[] = {
756
839
{ .name = "debug", .key = 128,
757
840
.doc = "Debug mode", .group = 3 },
758
841
{ .name = "connect", .key = 'c',
759
.arg = "IP",
760
.doc = "Connect directly to a sepcified mandos server",
842
.arg = "ADDRESS:PORT",
843
.doc = "Connect directly to a specific Mandos server",
761
844
.group = 1 },
762
845
{ .name = "interface", .key = 'i',
763
.arg = "INTERFACE",
764
.doc = "Interface that Avahi will conntect through",
765
.group = 1 },
766
{ .name = "keydir", .key = 'd',
767
.arg = "KEYDIR",
768
.doc = "Directory where the openpgp keyring is",
846
.arg = "NAME",
847
.doc = "Interface that will be used to search for Mandos"
848
" servers",
769
849
.group = 1 },
770
850
{ .name = "seckey", .key = 's',
771
.arg = "SECKEY",
772
.doc = "Secret openpgp key for gnutls authentication",
851
.arg = "FILE",
852
.doc = "OpenPGP secret key file base name",
773
853
.group = 1 },
774
854
{ .name = "pubkey", .key = 'p',
775
.arg = "PUBKEY",
776
.doc = "Public openpgp key for gnutls authentication",
855
.arg = "FILE",
856
.doc = "OpenPGP public key file base name",
777
857
.group = 2 },
778
858
{ .name = "dh-bits", .key = 129,
779
859
.arg = "BITS",
780
.doc = "dh-bits to use in gnutls communication",
860
.doc = "Bit length of the prime number used in the"
861
" Diffie-Hellman key exchange",
781
862
.group = 2 },
782
863
{ .name = "priority", .key = 130,
783
.arg = "PRIORITY",
784
.doc = "GNUTLS priority", .group = 1 },
864
.arg = "STRING",
865
.doc = "GnuTLS priority string for the TLS handshake",
866
.group = 1 },
785
867
{ .name = NULL }
786
868
};
787
788
869
789
error_t parse_opt (int key, char *arg,
790
struct argp_state *state) {
791
/* Get the INPUT argument from `argp_parse', which we know is
792
a pointer to our plugin list pointer. */
793
switch (key) {
794
case 128:
870
error_t parse_opt(int key, char *arg,
871
struct argp_state *state) {
872
switch(key) {
873
case 128: /* --debug */
795
874
debug = true;
796
875
break;
797
case 'c':
876
case 'c': /* --connect */
798
877
connect_to = arg;
799
878
break;
800
case 'i':
879
case 'i': /* --interface */
801
880
interface = arg;
802
881
break;
803
case 'd':
804
keydir = arg;
805
break;
806
case 's':
807
seckeyfile = arg;
808
break;
809
case 'p':
810
pubkeyfile = arg;
811
break;
812
case 129:
813
errno = 0;
814
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
815
if (errno){
816
perror("strtol");
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");
817
892
exit(EXIT_FAILURE);
818
893
}
819
894
break;
820
case 130:
895
case 130: /* --priority */
821
896
mc.priority = arg;
822
897
break;
823
898
case ARGP_KEY_ARG:
824
argp_usage (state);
899
argp_usage(state);
900
case ARGP_KEY_END:
825
901
break;
826
case ARGP_KEY_END:
827
break;
828
902
default:
829
903
return ARGP_ERR_UNKNOWN;
830
904
}
831
905
return 0;
832
906
}
833
907
834
908
struct argp argp = { .options = options, .parser = parse_opt,
835
909
.args_doc = "",
836
910
.doc = "Mandos client -- Get and decrypt"
837
" passwords from mandos server" };
838
argp_parse (&argp, argc, argv, 0, 0, NULL);
839
}
840
841
pubkeyfile = combinepath(keydir, pubkeyfile);
842
if (pubkeyfile == NULL){
843
perror("combinepath");
844
exitcode = EXIT_FAILURE;
845
goto end;
846
}
847
848
seckeyfile = combinepath(keydir, seckeyfile);
849
if (seckeyfile == NULL){
850
perror("combinepath");
851
goto end;
852
}
853
854
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
855
if (ret == -1){
856
fprintf(stderr, "init_gnutls_global\n");
857
goto end;
858
} else {
859
gnutls_initalized = true;
860
}
861
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;
916
goto end;
917
}
918
}
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);
929
ret = ioctl(sd, SIOCGIFFLAGS, &network);
930
if(ret == -1){
931
perror("ioctl SIOCGIFFLAGS");
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));
945
if(ret == -1){
946
perror("close");
947
}
948
}
949
862
950
uid = getuid();
863
951
gid = getgid();
864
952
865
953
ret = setuid(uid);
866
if (ret == -1){
954
if(ret == -1){
867
955
perror("setuid");
868
956
}
869
957
870
958
setgid(gid);
871
if (ret == -1){
959
if(ret == -1){
872
960
perror("setgid");
873
961
}
874
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
875
986
if_index = (AvahiIfIndex) if_nametoindex(interface);
876
987
if(if_index == 0){
877
988
fprintf(stderr, "No such interface: \"%s\"\n", interface);
887
998
exitcode = EXIT_FAILURE;
888
999
goto end;
889
1000
}
890
errno = 0;
891
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
892
if(errno){
893
perror("Bad port number");
1001
uint16_t port;
1002
ret = sscanf(address+1, "%" SCNu16, &port);
1003
if(ret != 1){
1004
fprintf(stderr, "Bad port number\n");
894
1005
exitcode = EXIT_FAILURE;
895
1006
goto end;
896
1007
}
905
1016
goto end;
906
1017
}
907
1018
908
/* If the interface is down, bring it up */
909
{
910
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
911
if(sd < 0) {
912
perror("socket");
913
exitcode = EXIT_FAILURE;
914
goto end;
915
}
916
strcpy(network.ifr_name, interface); /* Spurious warning */
917
ret = ioctl(sd, SIOCGIFFLAGS, &network);
918
if(ret == -1){
919
perror("ioctl SIOCGIFFLAGS");
920
exitcode = EXIT_FAILURE;
921
goto end;
922
}
923
if((network.ifr_flags & IFF_UP) == 0){
924
network.ifr_flags |= IFF_UP;
925
ret = ioctl(sd, SIOCSIFFLAGS, &network);
926
if(ret == -1){
927
perror("ioctl SIOCSIFFLAGS");
928
exitcode = EXIT_FAILURE;
929
goto end;
930
}
931
}
932
close(sd);
933
}
934
935
if (not debug){
1019
if(not debug){
936
1020
avahi_set_log_function(empty_log);
937
1021
}
938
1022
941
1025
942
1026
/* Allocate main Avahi loop object */
943
1027
mc.simple_poll = avahi_simple_poll_new();
944
if (mc.simple_poll == NULL) {
1028
if(mc.simple_poll == NULL) {
945
1029
fprintf(stderr, "Avahi: Failed to create simple poll"
946
1030
" object.\n");
947
1031
exitcode = EXIT_FAILURE;
948
1032
goto end;
949
1033
}
950
1034
951
1035
{
952
1036
AvahiServerConfig config;
953
1037
/* Do not publish any local Zeroconf records */
956
1040
config.publish_addresses = 0;
957
1041
config.publish_workstation = 0;
958
1042
config.publish_domain = 0;
959
1043
960
1044
/* Allocate a new server */
961
1045
mc.server = avahi_server_new(avahi_simple_poll_get
962
1046
(mc.simple_poll), &config, NULL,
963
1047
NULL, &error);
964
1048
965
1049
/* Free the Avahi configuration data */
966
1050
avahi_server_config_free(&config);
967
1051
}
968
1052
969
1053
/* Check if creating the Avahi server object succeeded */
970
if (mc.server == NULL) {
1054
if(mc.server == NULL) {
971
1055
fprintf(stderr, "Failed to create Avahi server: %s\n",
972
1056
avahi_strerror(error));
973
1057
exitcode = EXIT_FAILURE;
979
1063
AVAHI_PROTO_INET6,
980
1064
"_mandos._tcp", NULL, 0,
981
1065
browse_callback, &mc);
982
if (sb == NULL) {
1066
if(sb == NULL) {
983
1067
fprintf(stderr, "Failed to create service browser: %s\n",
984
1068
avahi_strerror(avahi_server_errno(mc.server)));
985
1069
exitcode = EXIT_FAILURE;
987
1071
}
988
1072
989
1073
/* Run the main loop */
990
991
if (debug){
1074
1075
if(debug){
992
1076
fprintf(stderr, "Starting Avahi loop search\n");
993
1077
}
994
1078
995
1079
avahi_simple_poll_loop(mc.simple_poll);
996
1080
997
1081
end:
998
999
if (debug){
1082
1083
if(debug){
1000
1084
fprintf(stderr, "%s exiting\n", argv[0]);
1001
1085
}
1002
1086
1003
1087
/* Cleanup things */
1004
if (sb != NULL)
1088
if(sb != NULL)
1005
1089
avahi_s_service_browser_free(sb);
1006
1090
1007
if (mc.server != NULL)
1091
if(mc.server != NULL)
1008
1092
avahi_server_free(mc.server);
1009
1010
if (mc.simple_poll != NULL)
1093
1094
if(mc.simple_poll != NULL)
1011
1095
avahi_simple_poll_free(mc.simple_poll);
1012
free(pubkeyfile);
1013
free(seckeyfile);
1014
1015
if (gnutls_initalized){
1016
gnutls_certificate_free_credentials (mc.cred);
1017
gnutls_global_deinit ();
1018
}
1019
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
1020
1146
return exitcode;
1021
1147
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0