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- Committer: Teddy Hogeborn
- Date: 2015-07-12 01:07:14 UTC
- Revision ID: teddy@recompile.se-20150712010714-peiodtm9ay0nbjs2
plugins.d/mandos-client.c (main): See why it failed to bring up interface.
added
removed
plugins.d/mandos-client.c
9
9
* "browse_callback", and parts of "main".
10
10
*
11
11
* Everything else is
12
* Copyright © 2008-2016 Teddy Hogeborn
13
* Copyright © 2008-2016 Björn Påhlsson
12
* Copyright © 2008-2015 Teddy Hogeborn
13
* Copyright © 2008-2015 Björn Påhlsson
14
14
*
15
15
* This program is free software: you can redistribute it and/or
16
16
* modify it under the terms of the GNU General Public License as
46
46
#include <stdlib.h> /* free(), EXIT_SUCCESS, srand(),
47
47
strtof(), abort() */
48
48
#include <stdbool.h> /* bool, false, true */
49
#include <string.h> /* strcmp(), strlen(), strerror(),
50
asprintf(), strncpy(), strsignal()
51
*/
49
#include <string.h> /* memset(), strcmp(), strlen(),
50
strerror(), asprintf(), strcpy() */
52
51
#include <sys/ioctl.h> /* ioctl */
53
52
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
54
53
sockaddr_in6, PF_INET6,
58
57
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
59
58
inet_pton(), connect(),
60
59
getnameinfo() */
61
#include <fcntl.h> /* open(), unlinkat(), AT_REMOVEDIR */
60
#include <fcntl.h> /* open(), unlinkat() */
62
61
#include <dirent.h> /* opendir(), struct dirent, readdir()
63
62
*/
64
63
#include <inttypes.h> /* PRIu16, PRIdMAX, intmax_t,
65
64
strtoimax() */
66
#include <errno.h> /* perror(), errno, EINTR, EINVAL,
67
EAI_SYSTEM, ENETUNREACH,
68
EHOSTUNREACH, ECONNREFUSED, EPROTO,
69
EIO, ENOENT, ENXIO, ENOMEM, EISDIR,
70
ENOTEMPTY,
65
#include <errno.h> /* perror(), errno,
71
66
program_invocation_short_name */
72
67
#include <time.h> /* nanosleep(), time(), sleep() */
73
68
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
310
305
return false;
311
306
}
312
307
313
ret = close(fd);
308
ret = (int)TEMP_FAILURE_RETRY(close(fd));
314
309
if(ret == -1){
315
310
perror_plus("close");
316
311
}
518
513
fprintf_plus(stderr, "GnuTLS: %s", string);
519
514
}
520
515
521
__attribute__((nonnull(1, 2, 4), warn_unused_result))
516
__attribute__((nonnull, warn_unused_result))
522
517
static int init_gnutls_global(const char *pubkeyfilename,
523
518
const char *seckeyfilename,
524
519
const char *dhparamsfilename,
530
525
fprintf_plus(stderr, "Initializing GnuTLS\n");
531
526
}
532
527
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
533
535
if(debug){
534
536
/* "Use a log level over 10 to enable all debugging options."
535
537
* - GnuTLS manual
543
545
if(ret != GNUTLS_E_SUCCESS){
544
546
fprintf_plus(stderr, "GnuTLS memory error: %s\n",
545
547
safer_gnutls_strerror(ret));
548
gnutls_global_deinit();
546
549
return -1;
547
550
}
548
551
626
629
safer_gnutls_strerror(ret));
627
630
dhparamsfilename = NULL;
628
631
}
629
free(params.data);
630
632
} while(false);
631
633
}
632
634
if(dhparamsfilename == NULL){
753
755
globalfail:
754
756
755
757
gnutls_certificate_free_credentials(mc->cred);
758
gnutls_global_deinit();
756
759
gnutls_dh_params_deinit(mc->dh_params);
757
760
return -1;
758
761
}
819
822
820
823
/* Set effective uid to 0, return errno */
821
824
__attribute__((warn_unused_result))
822
int raise_privileges(void){
823
int old_errno = errno;
824
int ret = 0;
825
error_t raise_privileges(void){
826
error_t old_errno = errno;
827
error_t ret_errno = 0;
825
828
if(seteuid(0) == -1){
826
ret = errno;
829
ret_errno = errno;
827
830
}
828
831
errno = old_errno;
829
return ret;
832
return ret_errno;
830
833
}
831
834
832
835
/* Set effective and real user ID to 0. Return errno. */
833
836
__attribute__((warn_unused_result))
834
int raise_privileges_permanently(void){
835
int old_errno = errno;
836
int ret = raise_privileges();
837
if(ret != 0){
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){
838
841
errno = old_errno;
839
return ret;
842
return ret_errno;
840
843
}
841
844
if(setuid(0) == -1){
842
ret = errno;
845
ret_errno = errno;
843
846
}
844
847
errno = old_errno;
845
return ret;
848
return ret_errno;
846
849
}
847
850
848
851
/* Set effective user ID to unprivileged saved user ID */
849
852
__attribute__((warn_unused_result))
850
int lower_privileges(void){
851
int old_errno = errno;
852
int ret = 0;
853
error_t lower_privileges(void){
854
error_t old_errno = errno;
855
error_t ret_errno = 0;
853
856
if(seteuid(uid) == -1){
854
ret = errno;
857
ret_errno = errno;
855
858
}
856
859
errno = old_errno;
857
return ret;
860
return ret_errno;
858
861
}
859
862
860
863
/* Lower privileges permanently */
861
864
__attribute__((warn_unused_result))
862
int lower_privileges_permanently(void){
863
int old_errno = errno;
864
int ret = 0;
865
error_t lower_privileges_permanently(void){
866
error_t old_errno = errno;
867
error_t ret_errno = 0;
865
868
if(setuid(uid) == -1){
866
ret = errno;
869
ret_errno = errno;
867
870
}
868
871
errno = old_errno;
869
return ret;
872
return ret_errno;
870
873
}
871
874
872
875
/* Helper function to add_local_route() and delete_local_route() */
928
931
perror_plus("dup2(devnull, STDIN_FILENO)");
929
932
_exit(EX_OSERR);
930
933
}
931
ret = close(devnull);
934
ret = (int)TEMP_FAILURE_RETRY(close(devnull));
932
935
if(ret == -1){
933
936
perror_plus("close");
934
937
_exit(EX_OSERR);
951
954
helper, O_RDONLY));
952
955
if(helper_fd == -1){
953
956
perror_plus("openat");
954
close(helperdir_fd);
955
957
_exit(EX_UNAVAILABLE);
956
958
}
957
close(helperdir_fd);
959
TEMP_FAILURE_RETRY(close(helperdir_fd));
958
960
#ifdef __GNUC__
959
961
#pragma GCC diagnostic push
960
962
#pragma GCC diagnostic ignored "-Wcast-qual"
1079
1081
bool match = false;
1080
1082
{
1081
1083
char *interface = NULL;
1082
while((interface = argz_next(mc->interfaces,
1083
mc->interfaces_size,
1084
interface))){
1084
while((interface=argz_next(mc->interfaces, mc->interfaces_size,
1085
interface))){
1085
1086
if(if_nametoindex(interface) == (unsigned int)if_index){
1086
1087
match = true;
1087
1088
break;
1129
1130
goto mandos_end;
1130
1131
}
1131
1132
1133
memset(&to, 0, sizeof(to));
1132
1134
if(af == AF_INET6){
1133
struct sockaddr_in6 *to6 = (struct sockaddr_in6 *)&to;
1134
*to6 = (struct sockaddr_in6){ .sin6_family = (sa_family_t)af };
1135
ret = inet_pton(af, ip, &to6->sin6_addr);
1135
((struct sockaddr_in6 *)&to)->sin6_family = (sa_family_t)af;
1136
ret = inet_pton(af, ip, &((struct sockaddr_in6 *)&to)->sin6_addr);
1136
1137
} else { /* IPv4 */
1137
struct sockaddr_in *to4 = (struct sockaddr_in *)&to;
1138
*to4 = (struct sockaddr_in){ .sin_family = (sa_family_t)af };
1139
ret = inet_pton(af, ip, &to4->sin_addr);
1138
((struct sockaddr_in *)&to)->sin_family = (sa_family_t)af;
1139
ret = inet_pton(af, ip, &((struct sockaddr_in *)&to)->sin_addr);
1140
1140
}
1141
1141
if(ret < 0 ){
1142
1142
int e = errno;
1221
1221
sizeof(struct sockaddr_in));
1222
1222
}
1223
1223
if(ret < 0){
1224
if(((errno == ENETUNREACH) or (errno == EHOSTUNREACH))
1224
if(errno == ENETUNREACH
1225
1225
and if_index != AVAHI_IF_UNSPEC
1226
1226
and connect_to == NULL
1227
1227
and not route_added and
1240
1240
with an explicit route added with the server's address.
1241
1241
1242
1242
Avahi bug reference:
1243
https://lists.freedesktop.org/archives/avahi/2010-February/001833.html
1243
http://lists.freedesktop.org/archives/avahi/2010-February/001833.html
1244
1244
https://bugs.debian.org/587961
1245
1245
*/
1246
1246
if(debug){
1426
1426
&decrypted_buffer, mc);
1427
1427
if(decrypted_buffer_size >= 0){
1428
1428
1429
clearerr(stdout);
1430
1429
written = 0;
1431
1430
while(written < (size_t) decrypted_buffer_size){
1432
1431
if(quit_now){
1448
1447
}
1449
1448
written += (size_t)ret;
1450
1449
}
1451
ret = fflush(stdout);
1452
if(ret != 0){
1453
int e = errno;
1454
if(debug){
1455
fprintf_plus(stderr, "Error writing encrypted data: %s\n",
1456
strerror(errno));
1457
}
1458
errno = e;
1459
goto mandos_end;
1460
}
1461
1450
retval = 0;
1462
1451
}
1463
1452
}
1476
1465
free(decrypted_buffer);
1477
1466
free(buffer);
1478
1467
if(tcp_sd >= 0){
1479
ret = close(tcp_sd);
1468
ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
1480
1469
}
1481
1470
if(ret == -1){
1482
1471
if(e == 0){
1637
1626
__attribute__((nonnull, warn_unused_result))
1638
1627
bool get_flags(const char *ifname, struct ifreq *ifr){
1639
1628
int ret;
1640
int old_errno;
1629
error_t ret_errno;
1641
1630
1642
1631
int s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1643
1632
if(s < 0){
1644
old_errno = errno;
1633
ret_errno = errno;
1645
1634
perror_plus("socket");
1646
errno = old_errno;
1635
errno = ret_errno;
1647
1636
return false;
1648
1637
}
1649
strncpy(ifr->ifr_name, ifname, IF_NAMESIZE);
1650
ifr->ifr_name[IF_NAMESIZE-1] = '\0'; /* NUL terminate */
1638
strcpy(ifr->ifr_name, ifname);
1651
1639
ret = ioctl(s, SIOCGIFFLAGS, ifr);
1652
1640
if(ret == -1){
1653
1641
if(debug){
1654
old_errno = errno;
1642
ret_errno = errno;
1655
1643
perror_plus("ioctl SIOCGIFFLAGS");
1656
errno = old_errno;
1644
errno = ret_errno;
1657
1645
}
1658
1646
return false;
1659
1647
}
1923
1911
return;
1924
1912
}
1925
1913
}
1914
#ifdef __GLIBC__
1915
#if __GLIBC_PREREQ(2, 15)
1926
1916
int numhooks = scandirat(hookdir_fd, ".", &direntries,
1927
1917
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__ */
1928
1926
if(numhooks == -1){
1929
1927
perror_plus("scandir");
1930
1928
return;
2012
2010
perror_plus("openat");
2013
2011
_exit(EXIT_FAILURE);
2014
2012
}
2015
if(close(hookdir_fd) == -1){
2013
if((int)TEMP_FAILURE_RETRY(close(hookdir_fd)) == -1){
2016
2014
perror_plus("close");
2017
2015
_exit(EXIT_FAILURE);
2018
2016
}
2021
2019
perror_plus("dup2(devnull, STDIN_FILENO)");
2022
2020
_exit(EX_OSERR);
2023
2021
}
2024
ret = close(devnull);
2022
ret = (int)TEMP_FAILURE_RETRY(close(devnull));
2025
2023
if(ret == -1){
2026
2024
perror_plus("close");
2027
2025
_exit(EX_OSERR);
2076
2074
free(direntry);
2077
2075
}
2078
2076
free(direntries);
2079
if(close(hookdir_fd) == -1){
2077
if((int)TEMP_FAILURE_RETRY(close(hookdir_fd)) == -1){
2080
2078
perror_plus("close");
2081
2079
} else {
2082
2080
hookdir_fd = -1;
2085
2083
}
2086
2084
2087
2085
__attribute__((nonnull, warn_unused_result))
2088
int bring_up_interface(const char *const interface,
2089
const float delay){
2090
int old_errno = errno;
2086
error_t bring_up_interface(const char *const interface,
2087
const float delay){
2088
error_t old_errno = errno;
2091
2089
int ret;
2092
2090
struct ifreq network;
2093
2091
unsigned int if_index = if_nametoindex(interface);
2103
2101
}
2104
2102
2105
2103
if(not interface_is_up(interface)){
2106
int ret_errno = 0;
2107
int ioctl_errno = 0;
2104
error_t ret_errno = 0, ioctl_errno = 0;
2108
2105
if(not get_flags(interface, &network)){
2109
2106
ret_errno = errno;
2110
2107
fprintf_plus(stderr, "Failed to get flags for interface "
2123
2120
}
2124
2121
2125
2122
if(quit_now){
2126
ret = close(sd);
2123
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2127
2124
if(ret == -1){
2128
2125
perror_plus("close");
2129
2126
}
2179
2176
}
2180
2177
2181
2178
/* Close the socket */
2182
ret = close(sd);
2179
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2183
2180
if(ret == -1){
2184
2181
perror_plus("close");
2185
2182
}
2197
2194
2198
2195
/* Sleep checking until interface is running.
2199
2196
Check every 0.25s, up to total time of delay */
2200
for(int i = 0; i < delay * 4; i++){
2197
for(int i=0; i < delay * 4; i++){
2201
2198
if(interface_is_running(interface)){
2202
2199
break;
2203
2200
}
2213
2210
}
2214
2211
2215
2212
__attribute__((nonnull, warn_unused_result))
2216
int take_down_interface(const char *const interface){
2217
int old_errno = errno;
2213
error_t take_down_interface(const char *const interface){
2214
error_t old_errno = errno;
2218
2215
struct ifreq network;
2219
2216
unsigned int if_index = if_nametoindex(interface);
2220
2217
if(if_index == 0){
2223
2220
return ENXIO;
2224
2221
}
2225
2222
if(interface_is_up(interface)){
2226
int ret_errno = 0;
2227
int ioctl_errno = 0;
2223
error_t ret_errno = 0, ioctl_errno = 0;
2228
2224
if(not get_flags(interface, &network) and debug){
2229
2225
ret_errno = errno;
2230
2226
fprintf_plus(stderr, "Failed to get flags for interface "
2268
2264
}
2269
2265
2270
2266
/* Close the socket */
2271
int ret = close(sd);
2267
int ret = (int)TEMP_FAILURE_RETRY(close(sd));
2272
2268
if(ret == -1){
2273
2269
perror_plus("close");
2274
2270
}
2290
2286
2291
2287
int main(int argc, char *argv[]){
2292
2288
mandos_context mc = { .server = NULL, .dh_bits = 0,
2293
.priority = "SECURE256:!CTYPE-X.509"
2294
":+CTYPE-OPENPGP:!RSA:+SIGN-DSA-SHA256",
2295
.current_server = NULL, .interfaces = NULL,
2296
.interfaces_size = 0 };
2289
.priority = "SECURE256:!CTYPE-X.509:"
2290
"+CTYPE-OPENPGP:!RSA", .current_server = NULL,
2291
.interfaces = NULL, .interfaces_size = 0 };
2297
2292
AvahiSServiceBrowser *sb = NULL;
2298
2293
error_t ret_errno;
2299
2294
int ret;
2480
2475
.args_doc = "",
2481
2476
.doc = "Mandos client -- Get and decrypt"
2482
2477
" passwords from a Mandos server" };
2483
ret_errno = argp_parse(&argp, argc, argv,
2484
ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
2485
switch(ret_errno){
2478
ret = argp_parse(&argp, argc, argv,
2479
ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
2480
switch(ret){
2486
2481
case 0:
2487
2482
break;
2488
2483
case ENOMEM:
2489
2484
default:
2490
errno = ret_errno;
2485
errno = ret;
2491
2486
perror_plus("argp_parse");
2492
2487
exitcode = EX_OSERR;
2493
2488
goto end;
2499
2494
2500
2495
{
2501
2496
/* Work around Debian bug #633582:
2502
<https://bugs.debian.org/633582> */
2497
<http://bugs.debian.org/633582> */
2503
2498
2504
2499
/* Re-raise privileges */
2505
ret = raise_privileges();
2506
if(ret != 0){
2507
errno = ret;
2500
ret_errno = raise_privileges();
2501
if(ret_errno != 0){
2502
errno = ret_errno;
2508
2503
perror_plus("Failed to raise privileges");
2509
2504
} else {
2510
2505
struct stat st;
2526
2521
}
2527
2522
}
2528
2523
}
2529
close(seckey_fd);
2524
TEMP_FAILURE_RETRY(close(seckey_fd));
2530
2525
}
2531
2526
}
2532
2527
2547
2542
}
2548
2543
}
2549
2544
}
2550
close(pubkey_fd);
2545
TEMP_FAILURE_RETRY(close(pubkey_fd));
2551
2546
}
2552
2547
}
2553
2548
2554
if(dh_params_file != NULL
2555
and strcmp(dh_params_file, PATHDIR "/dhparams.pem" ) == 0){
2549
if(strcmp(dh_params_file, PATHDIR "/dhparams.pem" ) == 0){
2556
2550
int dhparams_fd = open(dh_params_file, O_RDONLY);
2557
2551
if(dhparams_fd == -1){
2558
2552
perror_plus("open");
2569
2563
}
2570
2564
}
2571
2565
}
2572
close(dhparams_fd);
2566
TEMP_FAILURE_RETRY(close(dhparams_fd));
2573
2567
}
2574
2568
}
2575
2569
2576
2570
/* Lower privileges */
2577
ret = lower_privileges();
2578
if(ret != 0){
2579
errno = ret;
2571
ret_errno = lower_privileges();
2572
if(ret_errno != 0){
2573
errno = ret_errno;
2580
2574
perror_plus("Failed to lower privileges");
2581
2575
}
2582
2576
}
2910
2904
2911
2905
/* Allocate a new server */
2912
2906
mc.server = avahi_server_new(avahi_simple_poll_get(simple_poll),
2913
&config, NULL, NULL, &ret);
2907
&config, NULL, NULL, &ret_errno);
2914
2908
2915
2909
/* Free the Avahi configuration data */
2916
2910
avahi_server_config_free(&config);
2919
2913
/* Check if creating the Avahi server object succeeded */
2920
2914
if(mc.server == NULL){
2921
2915
fprintf_plus(stderr, "Failed to create Avahi server: %s\n",
2922
avahi_strerror(ret));
2916
avahi_strerror(ret_errno));
2923
2917
exitcode = EX_UNAVAILABLE;
2924
2918
goto end;
2925
2919
}
2960
2954
end:
2961
2955
2962
2956
if(debug){
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
}
2957
fprintf_plus(stderr, "%s exiting\n", argv[0]);
2970
2958
}
2971
2959
2972
2960
/* Cleanup things */
2983
2971
2984
2972
if(gnutls_initialized){
2985
2973
gnutls_certificate_free_credentials(mc.cred);
2974
gnutls_global_deinit();
2986
2975
gnutls_dh_params_deinit(mc.dh_params);
2987
2976
}
2988
2977
3011
3000
3012
3001
/* Re-raise privileges */
3013
3002
{
3014
ret = raise_privileges();
3015
if(ret != 0){
3016
errno = ret;
3003
ret_errno = raise_privileges();
3004
if(ret_errno != 0){
3005
errno = ret_errno;
3017
3006
perror_plus("Failed to raise privileges");
3018
3007
} else {
3019
3008
3024
3013
/* Take down the network interfaces which were brought up */
3025
3014
{
3026
3015
char *interface = NULL;
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;
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;
3033
3022
perror_plus("Failed to take down interface");
3034
3023
}
3035
3024
}
3040
3029
}
3041
3030
}
3042
3031
3043
ret = lower_privileges_permanently();
3044
if(ret != 0){
3045
errno = ret;
3032
ret_errno = lower_privileges_permanently();
3033
if(ret_errno != 0){
3034
errno = ret_errno;
3046
3035
perror_plus("Failed to lower privileges permanently");
3047
3036
}
3048
3037
}
3050
3039
free(interfaces_to_take_down);
3051
3040
free(interfaces_hooks);
3052
3041
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
3109
3042
/* Removes the GPGME temp directory and all files inside */
3110
3043
if(tempdir != NULL){
3111
clean_dir_at(-1, tempdir, 0);
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
}
3112
3087
}
3113
3088
3114
3089
if(quit_now){
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0