9
9
* "browse_callback", and parts of "main".
11
11
* Everything else is
12
* Copyright © 2008-2014 Teddy Hogeborn
13
* Copyright © 2008-2014 Björn Påhlsson
15
* This program is free software: you can redistribute it and/or
16
* modify it under the terms of the GNU General Public License as
17
* published by the Free Software Foundation, either version 3 of the
18
* License, or (at your option) any later version.
20
* This program is distributed in the hope that it will be useful, but
12
* Copyright © 2008-2018 Teddy Hogeborn
13
* Copyright © 2008-2018 Björn Påhlsson
15
* This file is part of Mandos.
17
* Mandos is free software: you can redistribute it and/or modify it
18
* under the terms of the GNU General Public License as published by
19
* the Free Software Foundation, either version 3 of the License, or
20
* (at your option) any later version.
22
* Mandos is distributed in the hope that it will be useful, but
21
23
* WITHOUT ANY WARRANTY; without even the implied warranty of
22
24
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23
25
* General Public License for more details.
25
27
* You should have received a copy of the GNU General Public License
26
* along with this program. If not, see
27
* <http://www.gnu.org/licenses/>.
28
* along with Mandos. If not, see <http://www.gnu.org/licenses/>.
29
30
* Contact the authors at <mandos@recompile.se>.
46
47
#include <stdlib.h> /* free(), EXIT_SUCCESS, srand(),
47
48
strtof(), abort() */
48
49
#include <stdbool.h> /* bool, false, true */
49
#include <string.h> /* memset(), strcmp(), strlen(),
50
strerror(), asprintf(), strcpy() */
50
#include <string.h> /* strcmp(), strlen(), strerror(),
51
asprintf(), strncpy(), strsignal()
51
53
#include <sys/ioctl.h> /* ioctl */
52
54
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
53
55
sockaddr_in6, PF_INET6,
57
59
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
58
60
inet_pton(), connect(),
60
#include <fcntl.h> /* open(), unlinkat() */
62
#include <fcntl.h> /* open(), unlinkat(), AT_REMOVEDIR */
61
63
#include <dirent.h> /* opendir(), struct dirent, readdir()
63
65
#include <inttypes.h> /* PRIu16, PRIdMAX, intmax_t,
65
#include <errno.h> /* perror(), errno,
67
#include <errno.h> /* perror(), errno, EINTR, EINVAL,
68
EAI_SYSTEM, ENETUNREACH,
69
EHOSTUNREACH, ECONNREFUSED, EPROTO,
70
EIO, ENOENT, ENXIO, ENOMEM, EISDIR,
66
72
program_invocation_short_name */
67
73
#include <time.h> /* nanosleep(), time(), sleep() */
68
74
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
294
310
gpgme_strsource(rc), gpgme_strerror(rc));
314
gpgme_import_result_t import_result
315
= gpgme_op_import_result(mc->ctx);
316
if((import_result->imported < 1
317
or import_result->not_imported > 0)
318
and import_result->unchanged == 0){
319
fprintf_plus(stderr, "bad gpgme_op_import_results:\n");
321
"The total number of considered keys: %d\n",
322
import_result->considered);
324
"The number of keys without user ID: %d\n",
325
import_result->no_user_id);
327
"The total number of imported keys: %d\n",
328
import_result->imported);
329
fprintf_plus(stderr, "The number of imported RSA keys: %d\n",
330
import_result->imported_rsa);
331
fprintf_plus(stderr, "The number of unchanged keys: %d\n",
332
import_result->unchanged);
333
fprintf_plus(stderr, "The number of new user IDs: %d\n",
334
import_result->new_user_ids);
335
fprintf_plus(stderr, "The number of new sub keys: %d\n",
336
import_result->new_sub_keys);
337
fprintf_plus(stderr, "The number of new signatures: %d\n",
338
import_result->new_signatures);
339
fprintf_plus(stderr, "The number of new revocations: %d\n",
340
import_result->new_revocations);
342
"The total number of secret keys read: %d\n",
343
import_result->secret_read);
345
"The number of imported secret keys: %d\n",
346
import_result->secret_imported);
348
"The number of unchanged secret keys: %d\n",
349
import_result->secret_unchanged);
350
fprintf_plus(stderr, "The number of keys not imported: %d\n",
351
import_result->not_imported);
352
for(gpgme_import_status_t import_status
353
= import_result->imports;
354
import_status != NULL;
355
import_status = import_status->next){
356
fprintf_plus(stderr, "Import status for key: %s\n",
358
if(import_status->result != GPG_ERR_NO_ERROR){
359
fprintf_plus(stderr, "Import result: %s: %s\n",
360
gpgme_strsource(import_status->result),
361
gpgme_strerror(import_status->result));
363
fprintf_plus(stderr, "Key status:\n");
365
import_status->status & GPGME_IMPORT_NEW
366
? "The key was new.\n"
367
: "The key was not new.\n");
369
import_status->status & GPGME_IMPORT_UID
370
? "The key contained new user IDs.\n"
371
: "The key did not contain new user IDs.\n");
373
import_status->status & GPGME_IMPORT_SIG
374
? "The key contained new signatures.\n"
375
: "The key did not contain new signatures.\n");
377
import_status->status & GPGME_IMPORT_SUBKEY
378
? "The key contained new sub keys.\n"
379
: "The key did not contain new sub keys.\n");
381
import_status->status & GPGME_IMPORT_SECRET
382
? "The key contained a secret key.\n"
383
: "The key did not contain a secret key.\n");
298
ret = (int)TEMP_FAILURE_RETRY(close(fd));
300
391
perror_plus("close");
404
493
if(result == NULL){
405
494
fprintf_plus(stderr, "gpgme_op_decrypt_result failed\n");
407
fprintf_plus(stderr, "Unsupported algorithm: %s\n",
408
result->unsupported_algorithm);
409
fprintf_plus(stderr, "Wrong key usage: %u\n",
410
result->wrong_key_usage);
496
if(result->unsupported_algorithm != NULL) {
497
fprintf_plus(stderr, "Unsupported algorithm: %s\n",
498
result->unsupported_algorithm);
500
fprintf_plus(stderr, "Wrong key usage: %s\n",
501
result->wrong_key_usage ? "Yes" : "No");
411
502
if(result->file_name != NULL){
412
503
fprintf_plus(stderr, "File name: %s\n", result->file_name);
414
gpgme_recipient_t recipient;
415
recipient = result->recipients;
416
while(recipient != NULL){
506
for(gpgme_recipient_t r = result->recipients; r != NULL;
417
508
fprintf_plus(stderr, "Public key algorithm: %s\n",
418
gpgme_pubkey_algo_name
419
(recipient->pubkey_algo));
420
fprintf_plus(stderr, "Key ID: %s\n", recipient->keyid);
509
gpgme_pubkey_algo_name(r->pubkey_algo));
510
fprintf_plus(stderr, "Key ID: %s\n", r->keyid);
421
511
fprintf_plus(stderr, "Secret key available: %s\n",
422
recipient->status == GPG_ERR_NO_SECKEY
424
recipient = recipient->next;
512
r->status == GPG_ERR_NO_SECKEY ? "No" : "Yes");
498
591
fprintf_plus(stderr, "GnuTLS: %s", string);
501
__attribute__((nonnull, warn_unused_result))
594
__attribute__((nonnull(1, 2, 4), warn_unused_result))
502
595
static int init_gnutls_global(const char *pubkeyfilename,
503
596
const char *seckeyfilename,
597
const char *dhparamsfilename,
504
598
mandos_context *mc){
508
603
fprintf_plus(stderr, "Initializing GnuTLS\n");
511
ret = gnutls_global_init();
512
if(ret != GNUTLS_E_SUCCESS){
513
fprintf_plus(stderr, "GnuTLS global_init: %s\n",
514
safer_gnutls_strerror(ret));
519
607
/* "Use a log level over 10 to enable all debugging options."
520
608
* - GnuTLS manual
559
646
safer_gnutls_strerror(ret));
562
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
563
if(ret != GNUTLS_E_SUCCESS){
564
fprintf_plus(stderr, "Error in GnuTLS prime generation: %s\n",
565
safer_gnutls_strerror(ret));
649
/* If a Diffie-Hellman parameters file was given, try to use it */
650
if(dhparamsfilename != NULL){
651
gnutls_datum_t params = { .data = NULL, .size = 0 };
653
int dhpfile = open(dhparamsfilename, O_RDONLY);
656
dhparamsfilename = NULL;
659
size_t params_capacity = 0;
661
params_capacity = incbuffer((char **)¶ms.data,
663
(size_t)params_capacity);
664
if(params_capacity == 0){
665
perror_plus("incbuffer");
668
dhparamsfilename = NULL;
671
ssize_t bytes_read = read(dhpfile,
672
params.data + params.size,
678
/* check bytes_read for failure */
683
dhparamsfilename = NULL;
686
params.size += (unsigned int)bytes_read;
688
ret = close(dhpfile);
690
perror_plus("close");
692
if(params.data == NULL){
693
dhparamsfilename = NULL;
695
if(dhparamsfilename == NULL){
698
ret = gnutls_dh_params_import_pkcs3(mc->dh_params, ¶ms,
699
GNUTLS_X509_FMT_PEM);
700
if(ret != GNUTLS_E_SUCCESS){
701
fprintf_plus(stderr, "Failed to parse DH parameters in file"
702
" \"%s\": %s\n", dhparamsfilename,
703
safer_gnutls_strerror(ret));
704
dhparamsfilename = NULL;
709
if(dhparamsfilename == NULL){
710
if(mc->dh_bits == 0){
711
/* Find out the optimal number of DH bits */
712
/* Try to read the private key file */
713
gnutls_datum_t buffer = { .data = NULL, .size = 0 };
715
int secfile = open(seckeyfilename, O_RDONLY);
720
size_t buffer_capacity = 0;
722
buffer_capacity = incbuffer((char **)&buffer.data,
724
(size_t)buffer_capacity);
725
if(buffer_capacity == 0){
726
perror_plus("incbuffer");
731
ssize_t bytes_read = read(secfile,
732
buffer.data + buffer.size,
738
/* check bytes_read for failure */
745
buffer.size += (unsigned int)bytes_read;
749
/* If successful, use buffer to parse private key */
750
gnutls_sec_param_t sec_param = GNUTLS_SEC_PARAM_ULTRA;
751
if(buffer.data != NULL){
753
gnutls_openpgp_privkey_t privkey = NULL;
754
ret = gnutls_openpgp_privkey_init(&privkey);
755
if(ret != GNUTLS_E_SUCCESS){
756
fprintf_plus(stderr, "Error initializing OpenPGP key"
758
safer_gnutls_strerror(ret));
762
ret = gnutls_openpgp_privkey_import
763
(privkey, &buffer, GNUTLS_OPENPGP_FMT_BASE64, "", 0);
764
if(ret != GNUTLS_E_SUCCESS){
765
fprintf_plus(stderr, "Error importing OpenPGP key : %s",
766
safer_gnutls_strerror(ret));
772
/* Use private key to suggest an appropriate
774
sec_param = gnutls_openpgp_privkey_sec_param(privkey);
775
gnutls_openpgp_privkey_deinit(privkey);
777
fprintf_plus(stderr, "This OpenPGP key implies using"
778
" a GnuTLS security parameter \"%s\".\n",
779
safe_string(gnutls_sec_param_get_name
785
if(sec_param == GNUTLS_SEC_PARAM_UNKNOWN){
786
/* Err on the side of caution */
787
sec_param = GNUTLS_SEC_PARAM_ULTRA;
789
fprintf_plus(stderr, "Falling back to security parameter"
791
safe_string(gnutls_sec_param_get_name
796
uret = gnutls_sec_param_to_pk_bits(GNUTLS_PK_DH, sec_param);
800
fprintf_plus(stderr, "A \"%s\" GnuTLS security parameter"
801
" implies %u DH bits; using that.\n",
802
safe_string(gnutls_sec_param_get_name
807
fprintf_plus(stderr, "Failed to get implied number of DH"
808
" bits for security parameter \"%s\"): %s\n",
809
safe_string(gnutls_sec_param_get_name
811
safer_gnutls_strerror(ret));
815
fprintf_plus(stderr, "DH bits explicitly set to %u\n",
818
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
819
if(ret != GNUTLS_E_SUCCESS){
820
fprintf_plus(stderr, "Error in GnuTLS prime generation (%u"
821
" bits): %s\n", mc->dh_bits,
822
safer_gnutls_strerror(ret));
569
826
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
640
894
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
641
895
__attribute__((unused)) const char *txt){}
897
/* Set effective uid to 0, return errno */
898
__attribute__((warn_unused_result))
899
int raise_privileges(void){
900
int old_errno = errno;
902
if(seteuid(0) == -1){
909
/* Set effective and real user ID to 0. Return errno. */
910
__attribute__((warn_unused_result))
911
int raise_privileges_permanently(void){
912
int old_errno = errno;
913
int ret = raise_privileges();
925
/* Set effective user ID to unprivileged saved user ID */
926
__attribute__((warn_unused_result))
927
int lower_privileges(void){
928
int old_errno = errno;
930
if(seteuid(uid) == -1){
937
/* Lower privileges permanently */
938
__attribute__((warn_unused_result))
939
int lower_privileges_permanently(void){
940
int old_errno = errno;
942
if(setuid(uid) == -1){
949
/* Helper function to add_local_route() and delete_local_route() */
950
__attribute__((nonnull, warn_unused_result))
951
static bool add_delete_local_route(const bool add,
953
AvahiIfIndex if_index){
955
char helper[] = "mandos-client-iprouteadddel";
956
char add_arg[] = "add";
957
char delete_arg[] = "delete";
958
char debug_flag[] = "--debug";
959
char *pluginhelperdir = getenv("MANDOSPLUGINHELPERDIR");
960
if(pluginhelperdir == NULL){
962
fprintf_plus(stderr, "MANDOSPLUGINHELPERDIR environment"
963
" variable not set; cannot run helper\n");
968
char interface[IF_NAMESIZE];
969
if(if_indextoname((unsigned int)if_index, interface) == NULL){
970
perror_plus("if_indextoname");
974
int devnull = (int)TEMP_FAILURE_RETRY(open("/dev/null", O_RDONLY));
976
perror_plus("open(\"/dev/null\", O_RDONLY)");
982
/* Raise privileges */
983
errno = raise_privileges_permanently();
985
perror_plus("Failed to raise privileges");
986
/* _exit(EX_NOPERM); */
992
perror_plus("setgid");
995
/* Reset supplementary groups */
997
ret = setgroups(0, NULL);
999
perror_plus("setgroups");
1003
ret = dup2(devnull, STDIN_FILENO);
1005
perror_plus("dup2(devnull, STDIN_FILENO)");
1008
ret = close(devnull);
1010
perror_plus("close");
1013
ret = dup2(STDERR_FILENO, STDOUT_FILENO);
1015
perror_plus("dup2(STDERR_FILENO, STDOUT_FILENO)");
1018
int helperdir_fd = (int)TEMP_FAILURE_RETRY(open(pluginhelperdir,
1023
if(helperdir_fd == -1){
1024
perror_plus("open");
1025
_exit(EX_UNAVAILABLE);
1027
int helper_fd = (int)TEMP_FAILURE_RETRY(openat(helperdir_fd,
1029
if(helper_fd == -1){
1030
perror_plus("openat");
1031
close(helperdir_fd);
1032
_exit(EX_UNAVAILABLE);
1034
close(helperdir_fd);
1036
#pragma GCC diagnostic push
1037
#pragma GCC diagnostic ignored "-Wcast-qual"
1039
if(fexecve(helper_fd, (char *const [])
1040
{ helper, add ? add_arg : delete_arg, (char *)address,
1041
interface, debug ? debug_flag : NULL, NULL },
1044
#pragma GCC diagnostic pop
1046
perror_plus("fexecve");
1047
_exit(EXIT_FAILURE);
1051
perror_plus("fork");
1058
pret = waitpid(pid, &status, 0);
1059
if(pret == -1 and errno == EINTR and quit_now){
1060
int errno_raising = 0;
1061
if((errno = raise_privileges()) != 0){
1062
errno_raising = errno;
1063
perror_plus("Failed to raise privileges in order to"
1064
" kill helper program");
1066
if(kill(pid, SIGTERM) == -1){
1067
perror_plus("kill");
1069
if((errno_raising == 0) and (errno = lower_privileges()) != 0){
1070
perror_plus("Failed to lower privileges after killing"
1075
} while(pret == -1 and errno == EINTR);
1077
perror_plus("waitpid");
1080
if(WIFEXITED(status)){
1081
if(WEXITSTATUS(status) != 0){
1082
fprintf_plus(stderr, "Error: iprouteadddel exited"
1083
" with status %d\n", WEXITSTATUS(status));
1088
if(WIFSIGNALED(status)){
1089
fprintf_plus(stderr, "Error: iprouteadddel died by"
1090
" signal %d\n", WTERMSIG(status));
1093
fprintf_plus(stderr, "Error: iprouteadddel crashed\n");
1097
__attribute__((nonnull, warn_unused_result))
1098
static bool add_local_route(const char *address,
1099
AvahiIfIndex if_index){
1101
fprintf_plus(stderr, "Adding route to %s\n", address);
1103
return add_delete_local_route(true, address, if_index);
1106
__attribute__((nonnull, warn_unused_result))
1107
static bool delete_local_route(const char *address,
1108
AvahiIfIndex if_index){
1110
fprintf_plus(stderr, "Removing route to %s\n", address);
1112
return add_delete_local_route(false, address, if_index);
643
1115
/* Called when a Mandos server is found */
644
1116
__attribute__((nonnull, warn_unused_result))
645
1117
static int start_mandos_communication(const char *ip, in_port_t port,
732
1206
goto mandos_end;
735
memset(&to, 0, sizeof(to));
736
1209
if(af == AF_INET6){
737
((struct sockaddr_in6 *)&to)->sin6_family = (sa_family_t)af;
738
ret = inet_pton(af, ip, &((struct sockaddr_in6 *)&to)->sin6_addr);
1210
struct sockaddr_in6 *to6 = (struct sockaddr_in6 *)&to;
1211
*to6 = (struct sockaddr_in6){ .sin6_family = (sa_family_t)af };
1212
ret = inet_pton(af, ip, &to6->sin6_addr);
739
1213
} else { /* IPv4 */
740
((struct sockaddr_in *)&to)->sin_family = (sa_family_t)af;
741
ret = inet_pton(af, ip, &((struct sockaddr_in *)&to)->sin_addr);
1214
struct sockaddr_in *to4 = (struct sockaddr_in *)&to;
1215
*to4 = (struct sockaddr_in){ .sin_family = (sa_family_t)af };
1216
ret = inet_pton(af, ip, &to4->sin_addr);
814
1289
goto mandos_end;
818
ret = connect(tcp_sd, (struct sockaddr *)&to,
819
sizeof(struct sockaddr_in6));
821
ret = connect(tcp_sd, (struct sockaddr *)&to, /* IPv4 */
822
sizeof(struct sockaddr_in));
825
if((errno != ECONNREFUSED and errno != ENETUNREACH) or debug){
827
perror_plus("connect");
1294
ret = connect(tcp_sd, (struct sockaddr *)&to,
1295
sizeof(struct sockaddr_in6));
1297
ret = connect(tcp_sd, (struct sockaddr *)&to, /* IPv4 */
1298
sizeof(struct sockaddr_in));
1301
if(((errno == ENETUNREACH) or (errno == EHOSTUNREACH))
1302
and if_index != AVAHI_IF_UNSPEC
1303
and connect_to == NULL
1304
and not route_added and
1305
((af == AF_INET6 and not
1306
IN6_IS_ADDR_LINKLOCAL(&(((struct sockaddr_in6 *)
1308
or (af == AF_INET and
1309
/* Not a a IPv4LL address */
1310
(ntohl(((struct sockaddr_in *)&to)->sin_addr.s_addr)
1311
& 0xFFFF0000L) != 0xA9FE0000L))){
1312
/* Work around Avahi bug - Avahi does not announce link-local
1313
addresses if it has a global address, so local hosts with
1314
*only* a link-local address (e.g. Mandos clients) cannot
1315
connect to a Mandos server announced by Avahi on a server
1316
host with a global address. Work around this by retrying
1317
with an explicit route added with the server's address.
1319
Avahi bug reference:
1320
https://lists.freedesktop.org/archives/avahi/2010-February/001833.html
1321
https://bugs.debian.org/587961
1324
fprintf_plus(stderr, "Mandos server unreachable, trying"
1328
route_added = add_local_route(ip, if_index);
1334
if(errno != ECONNREFUSED or debug){
1336
perror_plus("connect");
838
1349
const char *out = mandos_protocol_version;
1454
/* Set effective uid to 0, return errno */
1455
__attribute__((warn_unused_result))
1456
error_t raise_privileges(void){
1457
error_t old_errno = errno;
1458
error_t ret_errno = 0;
1459
if(seteuid(0) == -1){
1461
perror_plus("seteuid");
1467
/* Set effective and real user ID to 0. Return errno. */
1468
__attribute__((warn_unused_result))
1469
error_t raise_privileges_permanently(void){
1470
error_t old_errno = errno;
1471
error_t ret_errno = raise_privileges();
1476
if(setuid(0) == -1){
1478
perror_plus("seteuid");
1484
/* Set effective user ID to unprivileged saved user ID */
1485
__attribute__((warn_unused_result))
1486
error_t lower_privileges(void){
1487
error_t old_errno = errno;
1488
error_t ret_errno = 0;
1489
if(seteuid(uid) == -1){
1491
perror_plus("seteuid");
1497
/* Lower privileges permanently */
1498
__attribute__((warn_unused_result))
1499
error_t lower_privileges_permanently(void){
1500
error_t old_errno = errno;
1501
error_t ret_errno = 0;
1502
if(setuid(uid) == -1){
1504
perror_plus("setuid");
1510
1993
__attribute__((nonnull))
1511
1994
void run_network_hooks(const char *mode, const char *interface,
1512
1995
const float delay){
1513
struct dirent **direntries;
1996
struct dirent **direntries = NULL;
1514
1997
if(hookdir_fd == -1){
1515
hookdir_fd = open(hookdir, O_RDONLY);
1998
hookdir_fd = open(hookdir, O_RDONLY | O_DIRECTORY | O_PATH
1516
2000
if(hookdir_fd == -1){
1517
2001
if(errno == ENOENT){
1529
#if __GLIBC_PREREQ(2, 15)
2012
int devnull = (int)TEMP_FAILURE_RETRY(open("/dev/null", O_RDONLY));
2014
perror_plus("open(\"/dev/null\", O_RDONLY)");
1530
2017
int numhooks = scandirat(hookdir_fd, ".", &direntries,
1531
2018
runnable_hook, alphasort);
1532
#else /* not __GLIBC_PREREQ(2, 15) */
1533
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1535
#endif /* not __GLIBC_PREREQ(2, 15) */
1536
#else /* not __GLIBC__ */
1537
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1539
#endif /* not __GLIBC__ */
1540
2019
if(numhooks == -1){
1541
2020
perror_plus("scandir");
1544
2024
struct dirent *direntry;
1546
int devnull = open("/dev/null", O_RDONLY);
1547
2026
for(int i = 0; i < numhooks; i++){
1548
2027
direntry = direntries[i];
2588
3137
free(interfaces_to_take_down);
2589
3138
free(interfaces_hooks);
3140
void clean_dir_at(int base, const char * const dirname,
3142
struct dirent **direntries = NULL;
3144
int dir_fd = (int)TEMP_FAILURE_RETRY(openat(base, dirname,
3150
perror_plus("open");
3153
int numentries = scandirat(dir_fd, ".", &direntries,
3154
notdotentries, alphasort);
3155
if(numentries >= 0){
3156
for(int i = 0; i < numentries; i++){
3158
fprintf_plus(stderr, "Unlinking \"%s/%s\"\n",
3159
dirname, direntries[i]->d_name);
3161
dret = unlinkat(dir_fd, direntries[i]->d_name, 0);
3163
if(errno == EISDIR){
3164
dret = unlinkat(dir_fd, direntries[i]->d_name,
3167
if((dret == -1) and (errno == ENOTEMPTY)
3168
and (strcmp(direntries[i]->d_name, "private-keys-v1.d")
3169
== 0) and (level == 0)){
3170
/* Recurse only in this special case */
3171
clean_dir_at(dir_fd, direntries[i]->d_name, level+1);
3174
if((dret == -1) and (errno != ENOENT)){
3175
fprintf_plus(stderr, "unlink(\"%s/%s\"): %s\n", dirname,
3176
direntries[i]->d_name, strerror(errno));
3179
free(direntries[i]);
3182
/* need to clean even if 0 because man page doesn't specify */
3184
dret = unlinkat(base, dirname, AT_REMOVEDIR);
3185
if(dret == -1 and errno != ENOENT){
3186
perror_plus("rmdir");
3189
perror_plus("scandirat");
2591
3194
/* Removes the GPGME temp directory and all files inside */
2592
3195
if(tempdir != NULL){
2593
struct dirent **direntries = NULL;
2594
int tempdir_fd = (int)TEMP_FAILURE_RETRY(open(tempdir, O_RDONLY |
2596
if(tempdir_fd == -1){
2597
perror_plus("open");
2600
#if __GLIBC_PREREQ(2, 15)
2601
int numentries = scandirat(tempdir_fd, ".", &direntries,
2602
notdotentries, alphasort);
2603
#else /* not __GLIBC_PREREQ(2, 15) */
2604
int numentries = scandir(tempdir, &direntries, notdotentries,
2606
#endif /* not __GLIBC_PREREQ(2, 15) */
2607
#else /* not __GLIBC__ */
2608
int numentries = scandir(tempdir, &direntries, notdotentries,
2610
#endif /* not __GLIBC__ */
2612
for(int i = 0; i < numentries; i++){
2613
ret = unlinkat(tempdir_fd, direntries[i]->d_name, 0);
2615
fprintf_plus(stderr, "unlinkat(open(\"%s\", O_RDONLY),"
2616
" \"%s\", 0): %s\n", tempdir,
2617
direntries[i]->d_name, strerror(errno));
2621
/* need to clean even if 0 because man page doesn't specify */
2623
if(numentries == -1){
2624
perror_plus("scandir");
2626
ret = rmdir(tempdir);
2627
if(ret == -1 and errno != ENOENT){
2628
perror_plus("rmdir");
2631
TEMP_FAILURE_RETRY(close(tempdir_fd));
3196
clean_dir_at(-1, tempdir, 0);