275
/* Set effective uid to 0, return errno */
276
__attribute__((warn_unused_result))
277
int raise_privileges(void){
278
int old_errno = errno;
280
if(seteuid(0) == -1){
287
/* Set effective and real user ID to 0. Return errno. */
288
__attribute__((warn_unused_result))
289
int raise_privileges_permanently(void){
290
int old_errno = errno;
291
int ret = raise_privileges();
303
/* Set effective user ID to unprivileged saved user ID */
304
__attribute__((warn_unused_result))
305
int lower_privileges(void){
306
int old_errno = errno;
308
if(seteuid(uid) == -1){
315
/* Lower privileges permanently */
316
__attribute__((warn_unused_result))
317
int lower_privileges_permanently(void){
318
int old_errno = errno;
320
if(setuid(uid) == -1){
276
328
* Initialize GPGME.
352
/* Workaround for systems without a real-time clock; see also
353
Debian bug #894495: <https://bugs.debian.org/894495> */
356
time_t currtime = time(NULL);
357
if(currtime != (time_t)-1){
359
if(gmtime_r(&currtime, &tm) == NULL) {
360
perror_plus("gmtime_r");
363
if(tm.tm_year != 70 or tm.tm_mon != 0){
367
fprintf_plus(stderr, "System clock is January 1970");
371
fprintf_plus(stderr, "System clock is invalid");
376
ret = fstat(fd, &keystat);
378
perror_plus("fstat");
381
ret = raise_privileges();
384
perror_plus("Failed to raise privileges");
389
"Setting system clock to key file mtime");
391
time_t keytime = keystat.st_mtim.tv_sec;
392
if(stime(&keytime) != 0){
393
perror_plus("stime");
395
ret = lower_privileges();
398
perror_plus("Failed to lower privileges");
300
402
rc = gpgme_data_new_from_fd(&pgp_data, fd);
301
403
if(rc != GPG_ERR_NO_ERROR){
302
404
fprintf_plus(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
310
412
gpgme_strsource(rc), gpgme_strerror(rc));
416
gpgme_import_result_t import_result
417
= gpgme_op_import_result(mc->ctx);
418
if((import_result->imported < 1
419
or import_result->not_imported > 0)
420
and import_result->unchanged == 0){
421
fprintf_plus(stderr, "bad gpgme_op_import_results:\n");
423
"The total number of considered keys: %d\n",
424
import_result->considered);
426
"The number of keys without user ID: %d\n",
427
import_result->no_user_id);
429
"The total number of imported keys: %d\n",
430
import_result->imported);
431
fprintf_plus(stderr, "The number of imported RSA keys: %d\n",
432
import_result->imported_rsa);
433
fprintf_plus(stderr, "The number of unchanged keys: %d\n",
434
import_result->unchanged);
435
fprintf_plus(stderr, "The number of new user IDs: %d\n",
436
import_result->new_user_ids);
437
fprintf_plus(stderr, "The number of new sub keys: %d\n",
438
import_result->new_sub_keys);
439
fprintf_plus(stderr, "The number of new signatures: %d\n",
440
import_result->new_signatures);
441
fprintf_plus(stderr, "The number of new revocations: %d\n",
442
import_result->new_revocations);
444
"The total number of secret keys read: %d\n",
445
import_result->secret_read);
447
"The number of imported secret keys: %d\n",
448
import_result->secret_imported);
450
"The number of unchanged secret keys: %d\n",
451
import_result->secret_unchanged);
452
fprintf_plus(stderr, "The number of keys not imported: %d\n",
453
import_result->not_imported);
454
for(gpgme_import_status_t import_status
455
= import_result->imports;
456
import_status != NULL;
457
import_status = import_status->next){
458
fprintf_plus(stderr, "Import status for key: %s\n",
460
if(import_status->result != GPG_ERR_NO_ERROR){
461
fprintf_plus(stderr, "Import result: %s: %s\n",
462
gpgme_strsource(import_status->result),
463
gpgme_strerror(import_status->result));
465
fprintf_plus(stderr, "Key status:\n");
467
import_status->status & GPGME_IMPORT_NEW
468
? "The key was new.\n"
469
: "The key was not new.\n");
471
import_status->status & GPGME_IMPORT_UID
472
? "The key contained new user IDs.\n"
473
: "The key did not contain new user IDs.\n");
475
import_status->status & GPGME_IMPORT_SIG
476
? "The key contained new signatures.\n"
477
: "The key did not contain new signatures.\n");
479
import_status->status & GPGME_IMPORT_SUBKEY
480
? "The key contained new sub keys.\n"
481
: "The key did not contain new sub keys.\n");
483
import_status->status & GPGME_IMPORT_SECRET
484
? "The key contained a secret key.\n"
485
: "The key did not contain a secret key.\n");
424
599
fprintf_plus(stderr, "Unsupported algorithm: %s\n",
425
600
result->unsupported_algorithm);
427
fprintf_plus(stderr, "Wrong key usage: %u\n",
428
result->wrong_key_usage);
602
fprintf_plus(stderr, "Wrong key usage: %s\n",
603
result->wrong_key_usage ? "Yes" : "No");
429
604
if(result->file_name != NULL){
430
605
fprintf_plus(stderr, "File name: %s\n", result->file_name);
432
gpgme_recipient_t recipient;
433
recipient = result->recipients;
434
while(recipient != NULL){
608
for(gpgme_recipient_t r = result->recipients; r != NULL;
435
610
fprintf_plus(stderr, "Public key algorithm: %s\n",
436
gpgme_pubkey_algo_name
437
(recipient->pubkey_algo));
438
fprintf_plus(stderr, "Key ID: %s\n", recipient->keyid);
611
gpgme_pubkey_algo_name(r->pubkey_algo));
612
fprintf_plus(stderr, "Key ID: %s\n", r->keyid);
439
613
fprintf_plus(stderr, "Secret key available: %s\n",
440
recipient->status == GPG_ERR_NO_SECKEY
442
recipient = recipient->next;
614
r->status == GPG_ERR_NO_SECKEY ? "No" : "Yes");
824
996
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
825
997
__attribute__((unused)) const char *txt){}
827
/* Set effective uid to 0, return errno */
828
__attribute__((warn_unused_result))
829
int raise_privileges(void){
830
int old_errno = errno;
832
if(seteuid(0) == -1){
839
/* Set effective and real user ID to 0. Return errno. */
840
__attribute__((warn_unused_result))
841
int raise_privileges_permanently(void){
842
int old_errno = errno;
843
int ret = raise_privileges();
855
/* Set effective user ID to unprivileged saved user ID */
856
__attribute__((warn_unused_result))
857
int lower_privileges(void){
858
int old_errno = errno;
860
if(seteuid(uid) == -1){
867
/* Lower privileges permanently */
868
__attribute__((warn_unused_result))
869
int lower_privileges_permanently(void){
870
int old_errno = errno;
872
if(setuid(uid) == -1){
879
999
/* Helper function to add_local_route() and delete_local_route() */
880
1000
__attribute__((nonnull, warn_unused_result))
881
1001
static bool add_delete_local_route(const bool add,