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- Committer: Teddy Hogeborn
- Date: 2016-10-05 20:13:01 UTC
- Revision ID: teddy@recompile.se-20161005201301-3ibock2agjb2ppe6
Tags: version-1.7.12-1
* Makefile (version): Change to 1.7.12.
* NEWS (Version 1.7.12): Add new entry.
* debian/changelog (1.7.12-1): - '' -
* NEWS (Version 1.7.12): Add new entry.
* debian/changelog (1.7.12-1): - '' -
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
12
* Copyright © 2008-2016 Teddy Hogeborn
13
* Copyright © 2008-2016 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> /* memset(), strcmp(), strlen(),
50
strerror(), asprintf(), strcpy() */
49
#include <string.h> /* strcmp(), strlen(), strerror(),
50
asprintf(), strncpy(), strsignal()
51
*/
51
52
#include <sys/ioctl.h> /* ioctl */
52
53
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
53
54
sockaddr_in6, PF_INET6,
57
58
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
58
59
inet_pton(), connect(),
59
60
getnameinfo() */
60
#include <fcntl.h> /* open(), unlinkat() */
61
#include <fcntl.h> /* open(), unlinkat(), AT_REMOVEDIR */
61
62
#include <dirent.h> /* opendir(), struct dirent, readdir()
62
63
*/
63
64
#include <inttypes.h> /* PRIu16, PRIdMAX, intmax_t,
64
65
strtoimax() */
65
#include <errno.h> /* perror(), errno,
66
#include <errno.h> /* perror(), errno, EINTR, EINVAL,
67
EAI_SYSTEM, ENETUNREACH,
68
EHOSTUNREACH, ECONNREFUSED, EPROTO,
69
EIO, ENOENT, ENXIO, ENOMEM, EISDIR,
70
ENOTEMPTY,
66
71
program_invocation_short_name */
67
72
#include <time.h> /* nanosleep(), time(), sleep() */
68
73
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
305
310
return false;
306
311
}
307
312
308
ret = (int)TEMP_FAILURE_RETRY(close(fd));
313
ret = close(fd);
309
314
if(ret == -1){
310
315
perror_plus("close");
311
316
}
513
518
fprintf_plus(stderr, "GnuTLS: %s", string);
514
519
}
515
520
516
__attribute__((nonnull, warn_unused_result))
521
__attribute__((nonnull(1, 2, 4), warn_unused_result))
517
522
static int init_gnutls_global(const char *pubkeyfilename,
518
523
const char *seckeyfilename,
519
524
const char *dhparamsfilename,
525
530
fprintf_plus(stderr, "Initializing GnuTLS\n");
526
531
}
527
532
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
533
if(debug){
536
534
/* "Use a log level over 10 to enable all debugging options."
537
535
* - GnuTLS manual
545
543
if(ret != GNUTLS_E_SUCCESS){
546
544
fprintf_plus(stderr, "GnuTLS memory error: %s\n",
547
545
safer_gnutls_strerror(ret));
548
gnutls_global_deinit();
549
546
return -1;
550
547
}
551
548
629
626
safer_gnutls_strerror(ret));
630
627
dhparamsfilename = NULL;
631
628
}
629
free(params.data);
632
630
} while(false);
633
631
}
634
632
if(dhparamsfilename == NULL){
755
753
globalfail:
756
754
757
755
gnutls_certificate_free_credentials(mc->cred);
758
gnutls_global_deinit();
759
756
gnutls_dh_params_deinit(mc->dh_params);
760
757
return -1;
761
758
}
822
819
823
820
/* Set effective uid to 0, return errno */
824
821
__attribute__((warn_unused_result))
825
error_t raise_privileges(void){
826
error_t old_errno = errno;
827
error_t ret_errno = 0;
822
int raise_privileges(void){
823
int old_errno = errno;
824
int ret = 0;
828
825
if(seteuid(0) == -1){
829
ret_errno = errno;
826
ret = errno;
830
827
}
831
828
errno = old_errno;
832
return ret_errno;
829
return ret;
833
830
}
834
831
835
832
/* Set effective and real user ID to 0. Return errno. */
836
833
__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){
834
int raise_privileges_permanently(void){
835
int old_errno = errno;
836
int ret = raise_privileges();
837
if(ret != 0){
841
838
errno = old_errno;
842
return ret_errno;
839
return ret;
843
840
}
844
841
if(setuid(0) == -1){
845
ret_errno = errno;
842
ret = errno;
846
843
}
847
844
errno = old_errno;
848
return ret_errno;
845
return ret;
849
846
}
850
847
851
848
/* Set effective user ID to unprivileged saved user ID */
852
849
__attribute__((warn_unused_result))
853
error_t lower_privileges(void){
854
error_t old_errno = errno;
855
error_t ret_errno = 0;
850
int lower_privileges(void){
851
int old_errno = errno;
852
int ret = 0;
856
853
if(seteuid(uid) == -1){
857
ret_errno = errno;
854
ret = errno;
858
855
}
859
856
errno = old_errno;
860
return ret_errno;
857
return ret;
861
858
}
862
859
863
860
/* Lower privileges permanently */
864
861
__attribute__((warn_unused_result))
865
error_t lower_privileges_permanently(void){
866
error_t old_errno = errno;
867
error_t ret_errno = 0;
862
int lower_privileges_permanently(void){
863
int old_errno = errno;
864
int ret = 0;
868
865
if(setuid(uid) == -1){
869
ret_errno = errno;
866
ret = errno;
870
867
}
871
868
errno = old_errno;
872
return ret_errno;
869
return ret;
873
870
}
874
871
875
872
/* Helper function to add_local_route() and delete_local_route() */
931
928
perror_plus("dup2(devnull, STDIN_FILENO)");
932
929
_exit(EX_OSERR);
933
930
}
934
ret = (int)TEMP_FAILURE_RETRY(close(devnull));
931
ret = close(devnull);
935
932
if(ret == -1){
936
933
perror_plus("close");
937
934
_exit(EX_OSERR);
954
951
helper, O_RDONLY));
955
952
if(helper_fd == -1){
956
953
perror_plus("openat");
954
close(helperdir_fd);
957
955
_exit(EX_UNAVAILABLE);
958
956
}
959
TEMP_FAILURE_RETRY(close(helperdir_fd));
957
close(helperdir_fd);
960
958
#ifdef __GNUC__
961
959
#pragma GCC diagnostic push
962
960
#pragma GCC diagnostic ignored "-Wcast-qual"
1130
1128
goto mandos_end;
1131
1129
}
1132
1130
1133
memset(&to, 0, sizeof(to));
1134
1131
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);
1132
struct sockaddr_in6 *to6 = (struct sockaddr_in6 *)&to;
1133
*to6 = (struct sockaddr_in6){ .sin6_family = (sa_family_t)af };
1134
ret = inet_pton(af, ip, &to6->sin6_addr);
1137
1135
} 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);
1136
struct sockaddr_in *to4 = (struct sockaddr_in *)&to;
1137
*to4 = (struct sockaddr_in){ .sin_family = (sa_family_t)af };
1138
ret = inet_pton(af, ip, &to4->sin_addr);
1140
1139
}
1141
1140
if(ret < 0 ){
1142
1141
int e = errno;
1221
1220
sizeof(struct sockaddr_in));
1222
1221
}
1223
1222
if(ret < 0){
1224
if(errno == ENETUNREACH
1223
if(((errno == ENETUNREACH) or (errno == EHOSTUNREACH))
1225
1224
and if_index != AVAHI_IF_UNSPEC
1226
1225
and connect_to == NULL
1227
1226
and not route_added and
1240
1239
with an explicit route added with the server's address.
1241
1240
1242
1241
Avahi bug reference:
1243
http://lists.freedesktop.org/archives/avahi/2010-February/001833.html
1242
https://lists.freedesktop.org/archives/avahi/2010-February/001833.html
1244
1243
https://bugs.debian.org/587961
1245
1244
*/
1246
1245
if(debug){
1426
1425
&decrypted_buffer, mc);
1427
1426
if(decrypted_buffer_size >= 0){
1428
1427
1428
clearerr(stdout);
1429
1429
written = 0;
1430
1430
while(written < (size_t) decrypted_buffer_size){
1431
1431
if(quit_now){
1447
1447
}
1448
1448
written += (size_t)ret;
1449
1449
}
1450
ret = fflush(stdout);
1451
if(ret != 0){
1452
int e = errno;
1453
if(debug){
1454
fprintf_plus(stderr, "Error writing encrypted data: %s\n",
1455
strerror(errno));
1456
}
1457
errno = e;
1458
goto mandos_end;
1459
}
1450
1460
retval = 0;
1451
1461
}
1452
1462
}
1465
1475
free(decrypted_buffer);
1466
1476
free(buffer);
1467
1477
if(tcp_sd >= 0){
1468
ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
1478
ret = close(tcp_sd);
1469
1479
}
1470
1480
if(ret == -1){
1471
1481
if(e == 0){
1626
1636
__attribute__((nonnull, warn_unused_result))
1627
1637
bool get_flags(const char *ifname, struct ifreq *ifr){
1628
1638
int ret;
1629
error_t ret_errno;
1639
int old_errno;
1630
1640
1631
1641
int s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1632
1642
if(s < 0){
1633
ret_errno = errno;
1643
old_errno = errno;
1634
1644
perror_plus("socket");
1635
errno = ret_errno;
1645
errno = old_errno;
1636
1646
return false;
1637
1647
}
1638
strcpy(ifr->ifr_name, ifname);
1648
strncpy(ifr->ifr_name, ifname, IF_NAMESIZE);
1649
ifr->ifr_name[IF_NAMESIZE-1] = '\0'; /* NUL terminate */
1639
1650
ret = ioctl(s, SIOCGIFFLAGS, ifr);
1640
1651
if(ret == -1){
1641
1652
if(debug){
1642
ret_errno = errno;
1653
old_errno = errno;
1643
1654
perror_plus("ioctl SIOCGIFFLAGS");
1644
errno = ret_errno;
1655
errno = old_errno;
1645
1656
}
1646
1657
return false;
1647
1658
}
1911
1922
return;
1912
1923
}
1913
1924
}
1914
#ifdef __GLIBC__
1915
#if __GLIBC_PREREQ(2, 15)
1916
1925
int numhooks = scandirat(hookdir_fd, ".", &direntries,
1917
1926
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
1927
if(numhooks == -1){
1927
1928
perror_plus("scandir");
1928
1929
return;
2010
2011
perror_plus("openat");
2011
2012
_exit(EXIT_FAILURE);
2012
2013
}
2013
if((int)TEMP_FAILURE_RETRY(close(hookdir_fd)) == -1){
2014
if(close(hookdir_fd) == -1){
2014
2015
perror_plus("close");
2015
2016
_exit(EXIT_FAILURE);
2016
2017
}
2019
2020
perror_plus("dup2(devnull, STDIN_FILENO)");
2020
2021
_exit(EX_OSERR);
2021
2022
}
2022
ret = (int)TEMP_FAILURE_RETRY(close(devnull));
2023
ret = close(devnull);
2023
2024
if(ret == -1){
2024
2025
perror_plus("close");
2025
2026
_exit(EX_OSERR);
2074
2075
free(direntry);
2075
2076
}
2076
2077
free(direntries);
2077
if((int)TEMP_FAILURE_RETRY(close(hookdir_fd)) == -1){
2078
if(close(hookdir_fd) == -1){
2078
2079
perror_plus("close");
2079
2080
} else {
2080
2081
hookdir_fd = -1;
2083
2084
}
2084
2085
2085
2086
__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;
2087
int bring_up_interface(const char *const interface,
2088
const float delay){
2089
int old_errno = errno;
2089
2090
int ret;
2090
2091
struct ifreq network;
2091
2092
unsigned int if_index = if_nametoindex(interface);
2101
2102
}
2102
2103
2103
2104
if(not interface_is_up(interface)){
2104
error_t ret_errno = 0, ioctl_errno = 0;
2105
int ret_errno = 0;
2106
int ioctl_errno = 0;
2105
2107
if(not get_flags(interface, &network)){
2106
2108
ret_errno = errno;
2107
2109
fprintf_plus(stderr, "Failed to get flags for interface "
2120
2122
}
2121
2123
2122
2124
if(quit_now){
2123
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2125
ret = close(sd);
2124
2126
if(ret == -1){
2125
2127
perror_plus("close");
2126
2128
}
2176
2178
}
2177
2179
2178
2180
/* Close the socket */
2179
ret = (int)TEMP_FAILURE_RETRY(close(sd));
2181
ret = close(sd);
2180
2182
if(ret == -1){
2181
2183
perror_plus("close");
2182
2184
}
2210
2212
}
2211
2213
2212
2214
__attribute__((nonnull, warn_unused_result))
2213
error_t take_down_interface(const char *const interface){
2214
error_t old_errno = errno;
2215
int take_down_interface(const char *const interface){
2216
int old_errno = errno;
2215
2217
struct ifreq network;
2216
2218
unsigned int if_index = if_nametoindex(interface);
2217
2219
if(if_index == 0){
2220
2222
return ENXIO;
2221
2223
}
2222
2224
if(interface_is_up(interface)){
2223
error_t ret_errno = 0, ioctl_errno = 0;
2225
int ret_errno = 0;
2226
int ioctl_errno = 0;
2224
2227
if(not get_flags(interface, &network) and debug){
2225
2228
ret_errno = errno;
2226
2229
fprintf_plus(stderr, "Failed to get flags for interface "
2264
2267
}
2265
2268
2266
2269
/* Close the socket */
2267
int ret = (int)TEMP_FAILURE_RETRY(close(sd));
2270
int ret = close(sd);
2268
2271
if(ret == -1){
2269
2272
perror_plus("close");
2270
2273
}
2286
2289
2287
2290
int main(int argc, char *argv[]){
2288
2291
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 };
2292
.priority = "SECURE256:!CTYPE-X.509"
2293
":+CTYPE-OPENPGP:!RSA:+SIGN-DSA-SHA256",
2294
.current_server = NULL, .interfaces = NULL,
2295
.interfaces_size = 0 };
2292
2296
AvahiSServiceBrowser *sb = NULL;
2293
2297
error_t ret_errno;
2294
2298
int ret;
2475
2479
.args_doc = "",
2476
2480
.doc = "Mandos client -- Get and decrypt"
2477
2481
" passwords from a Mandos server" };
2478
ret = argp_parse(&argp, argc, argv,
2479
ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
2480
switch(ret){
2482
ret_errno = argp_parse(&argp, argc, argv,
2483
ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
2484
switch(ret_errno){
2481
2485
case 0:
2482
2486
break;
2483
2487
case ENOMEM:
2484
2488
default:
2485
errno = ret;
2489
errno = ret_errno;
2486
2490
perror_plus("argp_parse");
2487
2491
exitcode = EX_OSERR;
2488
2492
goto end;
2494
2498
2495
2499
{
2496
2500
/* Work around Debian bug #633582:
2497
<http://bugs.debian.org/633582> */
2501
<https://bugs.debian.org/633582> */
2498
2502
2499
2503
/* Re-raise privileges */
2500
ret_errno = raise_privileges();
2501
if(ret_errno != 0){
2502
errno = ret_errno;
2504
ret = raise_privileges();
2505
if(ret != 0){
2506
errno = ret;
2503
2507
perror_plus("Failed to raise privileges");
2504
2508
} else {
2505
2509
struct stat st;
2521
2525
}
2522
2526
}
2523
2527
}
2524
TEMP_FAILURE_RETRY(close(seckey_fd));
2528
close(seckey_fd);
2525
2529
}
2526
2530
}
2527
2531
2542
2546
}
2543
2547
}
2544
2548
}
2545
TEMP_FAILURE_RETRY(close(pubkey_fd));
2549
close(pubkey_fd);
2546
2550
}
2547
2551
}
2548
2552
2549
if(strcmp(dh_params_file, PATHDIR "/dhparams.pem" ) == 0){
2553
if(dh_params_file != NULL
2554
and strcmp(dh_params_file, PATHDIR "/dhparams.pem" ) == 0){
2550
2555
int dhparams_fd = open(dh_params_file, O_RDONLY);
2551
2556
if(dhparams_fd == -1){
2552
2557
perror_plus("open");
2563
2568
}
2564
2569
}
2565
2570
}
2566
TEMP_FAILURE_RETRY(close(dhparams_fd));
2571
close(dhparams_fd);
2567
2572
}
2568
2573
}
2569
2574
2570
2575
/* Lower privileges */
2571
ret_errno = lower_privileges();
2572
if(ret_errno != 0){
2573
errno = ret_errno;
2576
ret = lower_privileges();
2577
if(ret != 0){
2578
errno = ret;
2574
2579
perror_plus("Failed to lower privileges");
2575
2580
}
2576
2581
}
2904
2909
2905
2910
/* Allocate a new server */
2906
2911
mc.server = avahi_server_new(avahi_simple_poll_get(simple_poll),
2907
&config, NULL, NULL, &ret_errno);
2912
&config, NULL, NULL, &ret);
2908
2913
2909
2914
/* Free the Avahi configuration data */
2910
2915
avahi_server_config_free(&config);
2913
2918
/* Check if creating the Avahi server object succeeded */
2914
2919
if(mc.server == NULL){
2915
2920
fprintf_plus(stderr, "Failed to create Avahi server: %s\n",
2916
avahi_strerror(ret_errno));
2921
avahi_strerror(ret));
2917
2922
exitcode = EX_UNAVAILABLE;
2918
2923
goto end;
2919
2924
}
2954
2959
end:
2955
2960
2956
2961
if(debug){
2957
fprintf_plus(stderr, "%s exiting\n", argv[0]);
2962
if(signal_received){
2963
fprintf_plus(stderr, "%s exiting due to signal %d: %s\n",
2964
argv[0], signal_received,
2965
strsignal(signal_received));
2966
} else {
2967
fprintf_plus(stderr, "%s exiting\n", argv[0]);
2968
}
2958
2969
}
2959
2970
2960
2971
/* Cleanup things */
2971
2982
2972
2983
if(gnutls_initialized){
2973
2984
gnutls_certificate_free_credentials(mc.cred);
2974
gnutls_global_deinit();
2975
2985
gnutls_dh_params_deinit(mc.dh_params);
2976
2986
}
2977
2987
3000
3010
3001
3011
/* Re-raise privileges */
3002
3012
{
3003
ret_errno = raise_privileges();
3004
if(ret_errno != 0){
3005
errno = ret_errno;
3013
ret = raise_privileges();
3014
if(ret != 0){
3015
errno = ret;
3006
3016
perror_plus("Failed to raise privileges");
3007
3017
} else {
3008
3018
3016
3026
while((interface=argz_next(interfaces_to_take_down,
3017
3027
interfaces_to_take_down_size,
3018
3028
interface))){
3019
ret_errno = take_down_interface(interface);
3020
if(ret_errno != 0){
3021
errno = ret_errno;
3029
ret = take_down_interface(interface);
3030
if(ret != 0){
3031
errno = ret;
3022
3032
perror_plus("Failed to take down interface");
3023
3033
}
3024
3034
}
3029
3039
}
3030
3040
}
3031
3041
3032
ret_errno = lower_privileges_permanently();
3033
if(ret_errno != 0){
3034
errno = ret_errno;
3042
ret = lower_privileges_permanently();
3043
if(ret != 0){
3044
errno = ret;
3035
3045
perror_plus("Failed to lower privileges permanently");
3036
3046
}
3037
3047
}
3039
3049
free(interfaces_to_take_down);
3040
3050
free(interfaces_hooks);
3041
3051
3052
void clean_dir_at(int base, const char * const dirname,
3053
uintmax_t level){
3054
struct dirent **direntries = NULL;
3055
int dret;
3056
int dir_fd = (int)TEMP_FAILURE_RETRY(openat(base, dirname,
3057
O_RDONLY
3058
| O_NOFOLLOW
3059
| O_DIRECTORY
3060
| O_PATH));
3061
if(dir_fd == -1){
3062
perror_plus("open");
3063
}
3064
int numentries = scandirat(dir_fd, ".", &direntries,
3065
notdotentries, alphasort);
3066
if(numentries >= 0){
3067
for(int i = 0; i < numentries; i++){
3068
if(debug){
3069
fprintf_plus(stderr, "Unlinking \"%s/%s\"\n",
3070
dirname, direntries[i]->d_name);
3071
}
3072
dret = unlinkat(dir_fd, direntries[i]->d_name, 0);
3073
if(dret == -1){
3074
if(errno == EISDIR){
3075
dret = unlinkat(dir_fd, direntries[i]->d_name,
3076
AT_REMOVEDIR);
3077
}
3078
if((dret == -1) and (errno == ENOTEMPTY)
3079
and (strcmp(direntries[i]->d_name, "private-keys-v1.d")
3080
== 0) and (level == 0)){
3081
/* Recurse only in this special case */
3082
clean_dir_at(dir_fd, direntries[i]->d_name, level+1);
3083
dret = 0;
3084
}
3085
if(dret == -1){
3086
fprintf_plus(stderr, "unlink(\"%s/%s\"): %s\n", dirname,
3087
direntries[i]->d_name, strerror(errno));
3088
}
3089
}
3090
free(direntries[i]);
3091
}
3092
3093
/* need to clean even if 0 because man page doesn't specify */
3094
free(direntries);
3095
if(numentries == -1){
3096
perror_plus("scandirat");
3097
}
3098
dret = unlinkat(base, dirname, AT_REMOVEDIR);
3099
if(dret == -1 and errno != ENOENT){
3100
perror_plus("rmdir");
3101
}
3102
} else {
3103
perror_plus("scandirat");
3104
}
3105
close(dir_fd);
3106
}
3107
3042
3108
/* Removes the GPGME temp directory and all files inside */
3043
3109
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
}
3110
clean_dir_at(-1, tempdir, 0);
3087
3111
}
3088
3112
3089
3113
if(quit_now){
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Version: 2.0.2.dev0