To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to plugins.d/mandos-client.c
- browse files at revision 921
- compare with another revision
- download diff
- download tarball
- view history from revision 921
- Committer: Teddy Hogeborn
- Date: 2018-02-06 20:03:50 UTC
- Revision ID: teddy@recompile.se-20180206200350-jzvorueb731xkph3
Update Debian Debhelper compatibility version.
* (debian/compat): Change to "10".
* (debian/compat): Change to "10".
added
removed
plugins.d/mandos-client.c
9
9
* "browse_callback", and parts of "main".
10
10
*
11
11
* Everything else is
12
* Copyright © 2008-2015 Teddy Hogeborn
13
* Copyright © 2008-2015 Björn Påhlsson
14
*
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.
19
*
20
* This program is distributed in the hope that it will be useful, but
12
* Copyright © 2008-2017 Teddy Hogeborn
13
* Copyright © 2008-2017 Björn Påhlsson
14
*
15
* This file is part of Mandos.
16
*
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.
21
*
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.
24
26
*
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/>.
28
29
*
29
30
* Contact the authors at <mandos@recompile.se>.
30
31
*/
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()
52
*/
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(),
59
61
getnameinfo() */
60
#include <fcntl.h> /* open(), unlinkat() */
62
#include <fcntl.h> /* open(), unlinkat(), AT_REMOVEDIR */
61
63
#include <dirent.h> /* opendir(), struct dirent, readdir()
62
64
*/
63
65
#include <inttypes.h> /* PRIu16, PRIdMAX, intmax_t,
64
66
strtoimax() */
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,
71
ENOTEMPTY,
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,
305
311
return false;
306
312
}
307
313
308
ret = (int)TEMP_FAILURE_RETRY(close(fd));
314
ret = close(fd);
309
315
if(ret == -1){
310
316
perror_plus("close");
311
317
}
513
519
fprintf_plus(stderr, "GnuTLS: %s", string);
514
520
}
515
521
516
__attribute__((nonnull, warn_unused_result))
522
__attribute__((nonnull(1, 2, 4), warn_unused_result))
517
523
static int init_gnutls_global(const char *pubkeyfilename,
518
524
const char *seckeyfilename,
519
525
const char *dhparamsfilename,
525
531
fprintf_plus(stderr, "Initializing GnuTLS\n");
526
532
}
527
533
528
ret = gnutls_global_init();
529
if(ret != GNUTLS_E_SUCCESS){
530
fprintf_plus(stderr, "GnuTLS global_init: %s\n",
531
safer_gnutls_strerror(ret));
532
return -1;
533
}
534
535
534
if(debug){
536
535
/* "Use a log level over 10 to enable all debugging options."
537
536
* - GnuTLS manual
545
544
if(ret != GNUTLS_E_SUCCESS){
546
545
fprintf_plus(stderr, "GnuTLS memory error: %s\n",
547
546
safer_gnutls_strerror(ret));
548
gnutls_global_deinit();
549
547
return -1;
550
548
}
551
549
629
627
safer_gnutls_strerror(ret));
630
628
dhparamsfilename = NULL;
631
629
}
630
free(params.data);
632
631
} while(false);
633
632
}
634
633
if(dhparamsfilename == NULL){
755
754
globalfail:
756
755
757
756
gnutls_certificate_free_credentials(mc->cred);
758
gnutls_global_deinit();
759
757
gnutls_dh_params_deinit(mc->dh_params);
760
758
return -1;
761
759
}
822
820
823
821
/* Set effective uid to 0, return errno */
824
822
__attribute__((warn_unused_result))
825
error_t raise_privileges(void){
826
error_t old_errno = errno;
827
error_t ret_errno = 0;
823
int raise_privileges(void){
824
int old_errno = errno;
825
int ret = 0;
828
826
if(seteuid(0) == -1){
829
ret_errno = errno;
827
ret = errno;
830
828
}
831
829
errno = old_errno;
832
return ret_errno;
830
return ret;
833
831
}
834
832
835
833
/* Set effective and real user ID to 0. Return errno. */
836
834
__attribute__((warn_unused_result))
837
error_t raise_privileges_permanently(void){
838
error_t old_errno = errno;
839
error_t ret_errno = raise_privileges();
840
if(ret_errno != 0){
835
int raise_privileges_permanently(void){
836
int old_errno = errno;
837
int ret = raise_privileges();
838
if(ret != 0){
841
839
errno = old_errno;
842
return ret_errno;
840
return ret;
843
841
}
844
842
if(setuid(0) == -1){
845
ret_errno = errno;
843
ret = errno;
846
844
}
847
845
errno = old_errno;
848
return ret_errno;
846
return ret;
849
847
}
850
848
851
849
/* Set effective user ID to unprivileged saved user ID */
852
850
__attribute__((warn_unused_result))
853
error_t lower_privileges(void){
854
error_t old_errno = errno;
855
error_t ret_errno = 0;
851
int lower_privileges(void){
852
int old_errno = errno;
853
int ret = 0;
856
854
if(seteuid(uid) == -1){
857
ret_errno = errno;
855
ret = errno;
858
856
}
859
857
errno = old_errno;
860
return ret_errno;
858
return ret;
861
859
}
862
860
863
861
/* Lower privileges permanently */
864
862
__attribute__((warn_unused_result))
865
error_t lower_privileges_permanently(void){
866
error_t old_errno = errno;
867
error_t ret_errno = 0;
863
int lower_privileges_permanently(void){
864
int old_errno = errno;
865
int ret = 0;
868
866
if(setuid(uid) == -1){
869
ret_errno = errno;
867
ret = errno;
870
868
}
871
869
errno = old_errno;
872
return ret_errno;
870
return ret;
873
871
}
874
872
875
873
/* Helper function to add_local_route() and delete_local_route() */
931
929
perror_plus("dup2(devnull, STDIN_FILENO)");
932
930
_exit(EX_OSERR);
933
931
}
934
ret = (int)TEMP_FAILURE_RETRY(close(devnull));
932
ret = close(devnull);
935
933
if(ret == -1){
936
934
perror_plus("close");
937
935
_exit(EX_OSERR);
954
952
helper, O_RDONLY));
955
953
if(helper_fd == -1){
956
954
perror_plus("openat");
955
close(helperdir_fd);
957
956
_exit(EX_UNAVAILABLE);
958
957
}
959
TEMP_FAILURE_RETRY(close(helperdir_fd));
958
close(helperdir_fd);
960
959
#ifdef __GNUC__
961
960
#pragma GCC diagnostic push
962
961
#pragma GCC diagnostic ignored "-Wcast-qual"
1081
1080
bool match = false;
1082
1081
{
1083
1082
char *interface = NULL;
1084
while((interface=argz_next(mc->interfaces, mc->interfaces_size,
1085
interface))){
1083
while((interface = argz_next(mc->interfaces,
1084
mc->interfaces_size,
1085
interface))){
1086
1086
if(if_nametoindex(interface) == (unsigned int)if_index){
1087
1087
match = true;
1088
1088
break;
1130
1130
goto mandos_end;
1131
1131
}
1132
1132
1133
memset(&to, 0, sizeof(to));
1134
1133
if(af == AF_INET6){
1135
((struct sockaddr_in6 *)&to)->sin6_family = (sa_family_t)af;
1136
ret = inet_pton(af, ip, &((struct sockaddr_in6 *)&to)->sin6_addr);
1134
struct sockaddr_in6 *to6 = (struct sockaddr_in6 *)&to;
1135
*to6 = (struct sockaddr_in6){ .sin6_family = (sa_family_t)af };
1136
ret = inet_pton(af, ip, &to6->sin6_addr);
1137
1137
} else { /* IPv4 */
1138
((struct sockaddr_in *)&to)->sin_family = (sa_family_t)af;
1139
ret = inet_pton(af, ip, &((struct sockaddr_in *)&to)->sin_addr);
1138
struct sockaddr_in *to4 = (struct sockaddr_in *)&to;
1139
*to4 = (struct sockaddr_in){ .sin_family = (sa_family_t)af };
1140
ret = inet_pton(af, ip, &to4->sin_addr);
1140
1141
}
1141
1142
if(ret < 0 ){
1142
1143
int e = errno;
1221
1222
sizeof(struct sockaddr_in));
1222
1223
}
1223
1224
if(ret < 0){
1224
if(errno == ENETUNREACH
1225
if(((errno == ENETUNREACH) or (errno == EHOSTUNREACH))
1225
1226
and if_index != AVAHI_IF_UNSPEC
1226
1227
and connect_to == NULL
1227
1228
and not route_added and
1240
1241
with an explicit route added with the server's address.
1241
1242
1242
1243
Avahi bug reference:
1243
http://lists.freedesktop.org/archives/avahi/2010-February/001833.html
1244
https://lists.freedesktop.org/archives/avahi/2010-February/001833.html
1244
1245
https://bugs.debian.org/587961
1245
1246
*/
1246
1247
if(debug){
1426
1427
&decrypted_buffer, mc);
1427
1428
if(decrypted_buffer_size >= 0){
1428
1429
1430
clearerr(stdout);
1429
1431
written = 0;
1430
1432
while(written < (size_t) decrypted_buffer_size){
1431
1433
if(quit_now){
1447
1449
}
1448
1450
written += (size_t)ret;
1449
1451
}
1452
ret = fflush(stdout);
1453
if(ret != 0){
1454
int e = errno;
1455
if(debug){
1456
fprintf_plus(stderr, "Error writing encrypted data: %s\n",
1457
strerror(errno));
1458
}
1459
errno = e;
1460
goto mandos_end;
1461
}
1450
1462
retval = 0;
1451
1463
}
1452
1464
}
1465
1477
free(decrypted_buffer);
1466
1478
free(buffer);
1467
1479
if(tcp_sd >= 0){
1468
ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
1480
ret = close(tcp_sd);
1469
1481
}
1470
1482
if(ret == -1){
1471
1483
if(e == 0){
1483
1495
return retval;
1484
1496
}
1485
1497
1486
__attribute__((nonnull))
1487
1498
static void resolve_callback(AvahiSServiceResolver *r,
1488
1499
AvahiIfIndex interface,
1489
1500
AvahiProtocol proto,
1626
1637
__attribute__((nonnull, warn_unused_result))
1627
1638
bool get_flags(const char *ifname, struct ifreq *ifr){
1628
1639
int ret;
1629
error_t ret_errno;
1640
int old_errno;
1630
1641
1631
1642
int s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1632
1643
if(s < 0){
1633
ret_errno = errno;
1644
old_errno = errno;
1634
1645
perror_plus("socket");
1635
errno = ret_errno;
1646
errno = old_errno;
1636
1647
return false;
1637
1648
}
1638
strcpy(ifr->ifr_name, ifname);
1649
strncpy(ifr->ifr_name, ifname, IF_NAMESIZE);
1650
ifr->ifr_name[IF_NAMESIZE-1] = '\0'; /* NUL terminate */
1639
1651
ret = ioctl(s, SIOCGIFFLAGS, ifr);
1640
1652
if(ret == -1){
1641
1653
if(debug){
1642
ret_errno = errno;
1654
old_errno = errno;
1643
1655
perror_plus("ioctl SIOCGIFFLAGS");
1644
errno = ret_errno;
1656
errno = old_errno;
1645
1657
}
1646
1658
return false;
1647
1659
}
1911
1923
return;
1912
1924
}
1913
1925
}
1914
#ifdef __GLIBC__
1915
#if __GLIBC_PREREQ(2, 15)
1916
1926
int numhooks = scandirat(hookdir_fd, ".", &direntries,
1917
1927
runnable_hook, alphasort);
1918
#else /* not __GLIBC_PREREQ(2, 15) */
1919
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1920
alphasort);
1921
#endif /* not __GLIBC_PREREQ(2, 15) */
1922
#else /* not __GLIBC__ */
1923
int numhooks = scandir(hookdir, &direntries, runnable_hook,
1924
alphasort);
1925
#endif /* not __GLIBC__ */
1926
1928
if(numhooks == -1){
1927
1929
perror_plus("scandir");
1928
1930
return;
2010
2012
perror_plus("openat");
2011
2013
_exit(EXIT_FAILURE);
2012
2014
}
2013
if((int)TEMP_FAILURE_RETRY(close(hookdir_fd)) == -1){
2015
if(close(hookdir_fd) == -1){
2014
2016
perror_plus("close");
2015
2017
_exit(EXIT_FAILURE);
2016
2018
}
2019
2021
perror_plus("dup2(devnull, STDIN_FILENO)");
2020
2022
_exit(EX_OSERR);
2021
2023
}
2022
ret = (int)TEMP_FAILURE_RETRY(close(devnull));
2024
ret = close(devnull);
2023
2025
if(ret == -1){
2024
2026
perror_plus("close");
2025
2027
_exit(EX_OSERR);
2074
2076
free(direntry);
2075
2077
}
2076
2078
free(direntries);
2077
if((int)TEMP_FAILURE_RETRY(close(hookdir_fd)) == -1){
2079
if(close(hookdir_fd) == -1){
2078
2080
perror_plus("close");
2079
2081
} else {
2080
2082
hookdir_fd = -1;
2083
2085
}
2084
2086
2085
2087
__attribute__((nonnull, warn_unused_result))
2086
error_t bring_up_interface(const char *const interface,
2087
const float delay){
2088
error_t old_errno = errno;
2088
int bring_up_interface(const char *const interface,
2089
const float delay){
2090
int old_errno = errno;
2089
2091
int ret;
2090
2092
struct ifreq network;
2091
2093
unsigned int if_index = if_nametoindex(interface);
2101
2103
}
2102
2104
2103
2105
if(not interface_is_up(interface)){
2104
error_t ret_errno = 0, ioctl_errno = 0;
2106
int ret_errno = 0;
2107
int ioctl_errno = 0;
2105
2108
if(not get_flags(interface, &network)){
2106
2109
ret_errno = errno;
2107
2110
fprintf_plus(stderr, "Failed to get flags for interface "
2120
2123
}
2121
2124
2122
2125
if(quit_now){
2123
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2126
ret = close(sd);
2124
2127
if(ret == -1){
2125
2128
perror_plus("close");
2126
2129
}
2176
2179
}
2177
2180
2178
2181
/* Close the socket */
2179
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2182
ret = close(sd);
2180
2183
if(ret == -1){
2181
2184
perror_plus("close");
2182
2185
}
2194
2197
2195
2198
/* Sleep checking until interface is running.
2196
2199
Check every 0.25s, up to total time of delay */
2197
for(int i=0; i < delay * 4; i++){
2200
for(int i = 0; i < delay * 4; i++){
2198
2201
if(interface_is_running(interface)){
2199
2202
break;
2200
2203
}
2210
2213
}
2211
2214
2212
2215
__attribute__((nonnull, warn_unused_result))
2213
error_t take_down_interface(const char *const interface){
2214
error_t old_errno = errno;
2216
int take_down_interface(const char *const interface){
2217
int old_errno = errno;
2215
2218
struct ifreq network;
2216
2219
unsigned int if_index = if_nametoindex(interface);
2217
2220
if(if_index == 0){
2220
2223
return ENXIO;
2221
2224
}
2222
2225
if(interface_is_up(interface)){
2223
error_t ret_errno = 0, ioctl_errno = 0;
2226
int ret_errno = 0;
2227
int ioctl_errno = 0;
2224
2228
if(not get_flags(interface, &network) and debug){
2225
2229
ret_errno = errno;
2226
2230
fprintf_plus(stderr, "Failed to get flags for interface "
2264
2268
}
2265
2269
2266
2270
/* Close the socket */
2267
int ret = (int)TEMP_FAILURE_RETRY(close(sd));
2271
int ret = close(sd);
2268
2272
if(ret == -1){
2269
2273
perror_plus("close");
2270
2274
}
2286
2290
2287
2291
int main(int argc, char *argv[]){
2288
2292
mandos_context mc = { .server = NULL, .dh_bits = 0,
2289
.priority = "SECURE256:!CTYPE-X.509:"
2290
"+CTYPE-OPENPGP:!RSA", .current_server = NULL,
2291
.interfaces = NULL, .interfaces_size = 0 };
2293
.priority = "SECURE256:!CTYPE-X.509"
2294
":+CTYPE-OPENPGP:!RSA:+SIGN-DSA-SHA256",
2295
.current_server = NULL, .interfaces = NULL,
2296
.interfaces_size = 0 };
2292
2297
AvahiSServiceBrowser *sb = NULL;
2293
2298
error_t ret_errno;
2294
2299
int ret;
2475
2480
.args_doc = "",
2476
2481
.doc = "Mandos client -- Get and decrypt"
2477
2482
" passwords from a Mandos server" };
2478
ret = argp_parse(&argp, argc, argv,
2479
ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
2480
switch(ret){
2483
ret_errno = argp_parse(&argp, argc, argv,
2484
ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
2485
switch(ret_errno){
2481
2486
case 0:
2482
2487
break;
2483
2488
case ENOMEM:
2484
2489
default:
2485
errno = ret;
2490
errno = ret_errno;
2486
2491
perror_plus("argp_parse");
2487
2492
exitcode = EX_OSERR;
2488
2493
goto end;
2494
2499
2495
2500
{
2496
2501
/* Work around Debian bug #633582:
2497
<http://bugs.debian.org/633582> */
2502
<https://bugs.debian.org/633582> */
2498
2503
2499
2504
/* Re-raise privileges */
2500
ret_errno = raise_privileges();
2501
if(ret_errno != 0){
2502
errno = ret_errno;
2505
ret = raise_privileges();
2506
if(ret != 0){
2507
errno = ret;
2503
2508
perror_plus("Failed to raise privileges");
2504
2509
} else {
2505
2510
struct stat st;
2521
2526
}
2522
2527
}
2523
2528
}
2524
TEMP_FAILURE_RETRY(close(seckey_fd));
2529
close(seckey_fd);
2525
2530
}
2526
2531
}
2527
2532
2542
2547
}
2543
2548
}
2544
2549
}
2545
TEMP_FAILURE_RETRY(close(pubkey_fd));
2550
close(pubkey_fd);
2546
2551
}
2547
2552
}
2548
2553
2549
if(strcmp(dh_params_file, PATHDIR "/dhparams.pem" ) == 0){
2554
if(dh_params_file != NULL
2555
and strcmp(dh_params_file, PATHDIR "/dhparams.pem" ) == 0){
2550
2556
int dhparams_fd = open(dh_params_file, O_RDONLY);
2551
2557
if(dhparams_fd == -1){
2552
2558
perror_plus("open");
2563
2569
}
2564
2570
}
2565
2571
}
2566
TEMP_FAILURE_RETRY(close(dhparams_fd));
2572
close(dhparams_fd);
2567
2573
}
2568
2574
}
2569
2575
2570
2576
/* Lower privileges */
2571
ret_errno = lower_privileges();
2572
if(ret_errno != 0){
2573
errno = ret_errno;
2577
ret = lower_privileges();
2578
if(ret != 0){
2579
errno = ret;
2574
2580
perror_plus("Failed to lower privileges");
2575
2581
}
2576
2582
}
2904
2910
2905
2911
/* Allocate a new server */
2906
2912
mc.server = avahi_server_new(avahi_simple_poll_get(simple_poll),
2907
&config, NULL, NULL, &ret_errno);
2913
&config, NULL, NULL, &ret);
2908
2914
2909
2915
/* Free the Avahi configuration data */
2910
2916
avahi_server_config_free(&config);
2913
2919
/* Check if creating the Avahi server object succeeded */
2914
2920
if(mc.server == NULL){
2915
2921
fprintf_plus(stderr, "Failed to create Avahi server: %s\n",
2916
avahi_strerror(ret_errno));
2922
avahi_strerror(ret));
2917
2923
exitcode = EX_UNAVAILABLE;
2918
2924
goto end;
2919
2925
}
2954
2960
end:
2955
2961
2956
2962
if(debug){
2957
fprintf_plus(stderr, "%s exiting\n", argv[0]);
2963
if(signal_received){
2964
fprintf_plus(stderr, "%s exiting due to signal %d: %s\n",
2965
argv[0], signal_received,
2966
strsignal(signal_received));
2967
} else {
2968
fprintf_plus(stderr, "%s exiting\n", argv[0]);
2969
}
2958
2970
}
2959
2971
2960
2972
/* Cleanup things */
2971
2983
2972
2984
if(gnutls_initialized){
2973
2985
gnutls_certificate_free_credentials(mc.cred);
2974
gnutls_global_deinit();
2975
2986
gnutls_dh_params_deinit(mc.dh_params);
2976
2987
}
2977
2988
3000
3011
3001
3012
/* Re-raise privileges */
3002
3013
{
3003
ret_errno = raise_privileges();
3004
if(ret_errno != 0){
3005
errno = ret_errno;
3014
ret = raise_privileges();
3015
if(ret != 0){
3016
errno = ret;
3006
3017
perror_plus("Failed to raise privileges");
3007
3018
} else {
3008
3019
3013
3024
/* Take down the network interfaces which were brought up */
3014
3025
{
3015
3026
char *interface = NULL;
3016
while((interface=argz_next(interfaces_to_take_down,
3017
interfaces_to_take_down_size,
3018
interface))){
3019
ret_errno = take_down_interface(interface);
3020
if(ret_errno != 0){
3021
errno = ret_errno;
3027
while((interface = argz_next(interfaces_to_take_down,
3028
interfaces_to_take_down_size,
3029
interface))){
3030
ret = take_down_interface(interface);
3031
if(ret != 0){
3032
errno = ret;
3022
3033
perror_plus("Failed to take down interface");
3023
3034
}
3024
3035
}
3029
3040
}
3030
3041
}
3031
3042
3032
ret_errno = lower_privileges_permanently();
3033
if(ret_errno != 0){
3034
errno = ret_errno;
3043
ret = lower_privileges_permanently();
3044
if(ret != 0){
3045
errno = ret;
3035
3046
perror_plus("Failed to lower privileges permanently");
3036
3047
}
3037
3048
}
3039
3050
free(interfaces_to_take_down);
3040
3051
free(interfaces_hooks);
3041
3052
3053
void clean_dir_at(int base, const char * const dirname,
3054
uintmax_t level){
3055
struct dirent **direntries = NULL;
3056
int dret;
3057
int dir_fd = (int)TEMP_FAILURE_RETRY(openat(base, dirname,
3058
O_RDONLY
3059
| O_NOFOLLOW
3060
| O_DIRECTORY
3061
| O_PATH));
3062
if(dir_fd == -1){
3063
perror_plus("open");
3064
}
3065
int numentries = scandirat(dir_fd, ".", &direntries,
3066
notdotentries, alphasort);
3067
if(numentries >= 0){
3068
for(int i = 0; i < numentries; i++){
3069
if(debug){
3070
fprintf_plus(stderr, "Unlinking \"%s/%s\"\n",
3071
dirname, direntries[i]->d_name);
3072
}
3073
dret = unlinkat(dir_fd, direntries[i]->d_name, 0);
3074
if(dret == -1){
3075
if(errno == EISDIR){
3076
dret = unlinkat(dir_fd, direntries[i]->d_name,
3077
AT_REMOVEDIR);
3078
}
3079
if((dret == -1) and (errno == ENOTEMPTY)
3080
and (strcmp(direntries[i]->d_name, "private-keys-v1.d")
3081
== 0) and (level == 0)){
3082
/* Recurse only in this special case */
3083
clean_dir_at(dir_fd, direntries[i]->d_name, level+1);
3084
dret = 0;
3085
}
3086
if(dret == -1){
3087
fprintf_plus(stderr, "unlink(\"%s/%s\"): %s\n", dirname,
3088
direntries[i]->d_name, strerror(errno));
3089
}
3090
}
3091
free(direntries[i]);
3092
}
3093
3094
/* need to clean even if 0 because man page doesn't specify */
3095
free(direntries);
3096
if(numentries == -1){
3097
perror_plus("scandirat");
3098
}
3099
dret = unlinkat(base, dirname, AT_REMOVEDIR);
3100
if(dret == -1 and errno != ENOENT){
3101
perror_plus("rmdir");
3102
}
3103
} else {
3104
perror_plus("scandirat");
3105
}
3106
close(dir_fd);
3107
}
3108
3042
3109
/* Removes the GPGME temp directory and all files inside */
3043
3110
if(tempdir != NULL){
3044
struct dirent **direntries = NULL;
3045
int tempdir_fd = (int)TEMP_FAILURE_RETRY(open(tempdir, O_RDONLY
3046
| O_NOFOLLOW
3047
| O_DIRECTORY
3048
| O_PATH));
3049
if(tempdir_fd == -1){
3050
perror_plus("open");
3051
} else {
3052
#ifdef __GLIBC__
3053
#if __GLIBC_PREREQ(2, 15)
3054
int numentries = scandirat(tempdir_fd, ".", &direntries,
3055
notdotentries, alphasort);
3056
#else /* not __GLIBC_PREREQ(2, 15) */
3057
int numentries = scandir(tempdir, &direntries, notdotentries,
3058
alphasort);
3059
#endif /* not __GLIBC_PREREQ(2, 15) */
3060
#else /* not __GLIBC__ */
3061
int numentries = scandir(tempdir, &direntries, notdotentries,
3062
alphasort);
3063
#endif /* not __GLIBC__ */
3064
if(numentries >= 0){
3065
for(int i = 0; i < numentries; i++){
3066
ret = unlinkat(tempdir_fd, direntries[i]->d_name, 0);
3067
if(ret == -1){
3068
fprintf_plus(stderr, "unlinkat(open(\"%s\", O_RDONLY),"
3069
" \"%s\", 0): %s\n", tempdir,
3070
direntries[i]->d_name, strerror(errno));
3071
}
3072
free(direntries[i]);
3073
}
3074
3075
/* need to clean even if 0 because man page doesn't specify */
3076
free(direntries);
3077
if(numentries == -1){
3078
perror_plus("scandir");
3079
}
3080
ret = rmdir(tempdir);
3081
if(ret == -1 and errno != ENOENT){
3082
perror_plus("rmdir");
3083
}
3084
}
3085
TEMP_FAILURE_RETRY(close(tempdir_fd));
3086
}
3111
clean_dir_at(-1, tempdir, 0);
3087
3112
}
3088
3113
3089
3114
if(quit_now){
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0