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- Committer: Teddy Hogeborn
- Date: 2014-03-01 09:48:33 UTC
- Revision ID: teddy@recompile.se-20140301094833-t1678vzx6ph6zsxg
* debian/upstream-signing-key.pgp: New; upstream source public key.
- files added:
- DBUS-API
- debian/source
- network-hooks.d
- files modified:
- .bzrignore
added
removed
plugin-runner.c
2
2
/*
3
3
* Mandos plugin runner - Run Mandos plugins
4
4
*
5
* Copyright © 2008,2009 Teddy Hogeborn
6
* Copyright © 2008,2009 Björn Påhlsson
5
* Copyright © 2008-2013 Teddy Hogeborn
6
* Copyright © 2008-2013 Björn Påhlsson
7
7
*
8
8
* This program is free software: you can redistribute it and/or
9
9
* modify it under the terms of the GNU General Public License as
19
19
* along with this program. If not, see
20
20
* <http://www.gnu.org/licenses/>.
21
21
*
22
* Contact the authors at <mandos@fukt.bsnet.se>.
22
* Contact the authors at <mandos@recompile.se>.
23
23
*/
24
24
25
25
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), getline(),
26
26
asprintf(), O_CLOEXEC */
27
27
#include <stddef.h> /* size_t, NULL */
28
#include <stdlib.h> /* malloc(), exit(), EXIT_FAILURE,
29
EXIT_SUCCESS, realloc() */
28
#include <stdlib.h> /* malloc(), exit(), EXIT_SUCCESS,
29
realloc() */
30
30
#include <stdbool.h> /* bool, true, false */
31
#include <stdio.h> /* perror, fileno(), fprintf(),
31
#include <stdio.h> /* fileno(), fprintf(),
32
32
stderr, STDOUT_FILENO */
33
33
#include <sys/types.h> /* DIR, fdopendir(), stat(), struct
34
34
stat, waitpid(), WIFEXITED(),
54
54
#include <fcntl.h> /* fcntl(), F_GETFD, F_SETFD,
55
55
FD_CLOEXEC */
56
56
#include <string.h> /* strsep, strlen(), asprintf(),
57
strsignal() */
57
strsignal(), strcmp(), strncmp() */
58
58
#include <errno.h> /* errno */
59
59
#include <argp.h> /* struct argp_option, struct
60
60
argp_state, struct argp,
68
68
*/
69
69
#include <errno.h> /* errno, EBADF */
70
70
#include <inttypes.h> /* intmax_t, PRIdMAX, strtoimax() */
71
#include <sysexits.h> /* EX_OSERR, EX_USAGE */
71
#include <sysexits.h> /* EX_OSERR, EX_USAGE, EX_IOERR,
72
EX_CONFIG, EX_UNAVAILABLE, EX_OK */
73
#include <errno.h> /* errno */
74
#include <error.h> /* error() */
72
75
73
76
#define BUFFER_SIZE 256
74
77
76
79
#define AFILE "/conf/conf.d/mandos/plugin-runner.conf"
77
80
78
81
const char *argp_program_version = "plugin-runner " VERSION;
79
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
82
const char *argp_program_bug_address = "<mandos@recompile.se>";
80
83
81
84
typedef struct plugin{
82
85
char *name; /* can be NULL or any plugin name */
168
171
}
169
172
170
173
/* Helper function for add_argument and add_environment */
174
__attribute__((nonnull))
171
175
static bool add_to_char_array(const char *new, char ***array,
172
176
int *len){
173
177
/* Resize the pointed-to array to hold one more pointer */
196
200
}
197
201
198
202
/* Add to a plugin's argument vector */
203
__attribute__((nonnull(2)))
199
204
static bool add_argument(plugin *p, const char *arg){
200
205
if(p == NULL){
201
206
return false;
204
209
}
205
210
206
211
/* Add to a plugin's environment */
212
__attribute__((nonnull(2)))
207
213
static bool add_environment(plugin *p, const char *def, bool replace){
208
214
if(p == NULL){
209
215
return false;
265
271
/* No child processes */
266
272
break;
267
273
}
268
perror("waitpid");
274
error(0, errno, "waitpid");
269
275
}
270
276
271
277
/* A child exited, find it in process_list */
283
289
}
284
290
285
291
/* Prints out a password to stdout */
292
__attribute__((nonnull))
286
293
static bool print_out_password(const char *buffer, size_t length){
287
294
ssize_t ret;
288
295
for(size_t written = 0; written < length; written += (size_t)ret){
296
303
}
297
304
298
305
/* Removes and free a plugin from the plugin list */
306
__attribute__((nonnull))
299
307
static void free_plugin(plugin *plugin_node){
300
308
301
309
for(char **arg = plugin_node->argv; *arg != NULL; arg++){
356
364
sigemptyset(&sigchld_action.sa_mask);
357
365
ret = sigaddset(&sigchld_action.sa_mask, SIGCHLD);
358
366
if(ret == -1){
359
perror("sigaddset");
360
exitstatus = EXIT_FAILURE;
367
error(0, errno, "sigaddset");
368
exitstatus = EX_OSERR;
361
369
goto fallback;
362
370
}
363
371
ret = sigaction(SIGCHLD, &sigchld_action, &old_sigchld_action);
364
372
if(ret == -1){
365
perror("sigaction");
366
exitstatus = EXIT_FAILURE;
373
error(0, errno, "sigaction");
374
exitstatus = EX_OSERR;
367
375
goto fallback;
368
376
}
369
377
413
421
{ .name = NULL }
414
422
};
415
423
424
__attribute__((nonnull(3)))
416
425
error_t parse_opt(int key, char *arg, struct argp_state *state){
417
426
errno = 0;
418
427
switch(key){
419
428
char *tmp;
420
intmax_t tmpmax;
429
intmax_t tmp_id;
421
430
case 'g': /* --global-options */
422
431
{
423
432
char *plugin_option;
496
505
/* This is already done by parse_opt_config_file() */
497
506
break;
498
507
case 130: /* --userid */
499
tmpmax = strtoimax(arg, &tmp, 10);
508
tmp_id = strtoimax(arg, &tmp, 10);
500
509
if(errno != 0 or tmp == arg or *tmp != '\0'
501
or tmpmax != (uid_t)tmpmax){
510
or tmp_id != (uid_t)tmp_id){
502
511
argp_error(state, "Bad user ID number: \"%s\", using %"
503
512
PRIdMAX, arg, (intmax_t)uid);
504
513
break;
505
514
}
506
uid = (uid_t)tmpmax;
515
uid = (uid_t)tmp_id;
507
516
break;
508
517
case 131: /* --groupid */
509
tmpmax = strtoimax(arg, &tmp, 10);
518
tmp_id = strtoimax(arg, &tmp, 10);
510
519
if(errno != 0 or tmp == arg or *tmp != '\0'
511
or tmpmax != (gid_t)tmpmax){
520
or tmp_id != (gid_t)tmp_id){
512
521
argp_error(state, "Bad group ID number: \"%s\", using %"
513
522
PRIdMAX, arg, (intmax_t)gid);
514
523
break;
515
524
}
516
gid = (gid_t)tmpmax;
525
gid = (gid_t)tmp_id;
517
526
break;
518
527
case 132: /* --debug */
519
528
debug = true;
598
607
case ENOMEM:
599
608
default:
600
609
errno = ret;
601
perror("argp_parse");
610
error(0, errno, "argp_parse");
602
611
exitstatus = EX_OSERR;
603
612
goto fallback;
604
613
case EINVAL:
625
634
custom_argc = 1;
626
635
custom_argv = malloc(sizeof(char*) * 2);
627
636
if(custom_argv == NULL){
628
perror("malloc");
629
exitstatus = EXIT_FAILURE;
637
error(0, errno, "malloc");
638
exitstatus = EX_OSERR;
630
639
goto fallback;
631
640
}
632
641
custom_argv[0] = argv[0];
648
657
}
649
658
new_arg = strdup(p);
650
659
if(new_arg == NULL){
651
perror("strdup");
652
exitstatus = EXIT_FAILURE;
660
error(0, errno, "strdup");
661
exitstatus = EX_OSERR;
653
662
free(org_line);
654
663
goto fallback;
655
664
}
658
667
custom_argv = realloc(custom_argv, sizeof(char *)
659
668
* ((unsigned int) custom_argc + 1));
660
669
if(custom_argv == NULL){
661
perror("realloc");
662
exitstatus = EXIT_FAILURE;
670
error(0, errno, "realloc");
671
exitstatus = EX_OSERR;
663
672
free(org_line);
664
673
goto fallback;
665
674
}
671
680
ret = fclose(conffp);
672
681
} while(ret == EOF and errno == EINTR);
673
682
if(ret == EOF){
674
perror("fclose");
675
exitstatus = EXIT_FAILURE;
683
error(0, errno, "fclose");
684
exitstatus = EX_IOERR;
676
685
goto fallback;
677
686
}
678
687
free(org_line);
680
689
/* Check for harmful errors and go to fallback. Other errors might
681
690
not affect opening plugins */
682
691
if(errno == EMFILE or errno == ENFILE or errno == ENOMEM){
683
perror("fopen");
684
exitstatus = EXIT_FAILURE;
692
error(0, errno, "fopen");
693
exitstatus = EX_OSERR;
685
694
goto fallback;
686
695
}
687
696
}
697
706
case ENOMEM:
698
707
default:
699
708
errno = ret;
700
perror("argp_parse");
709
error(0, errno, "argp_parse");
701
710
exitstatus = EX_OSERR;
702
711
goto fallback;
703
712
case EINVAL:
717
726
case ENOMEM:
718
727
default:
719
728
errno = ret;
720
perror("argp_parse");
729
error(0, errno, "argp_parse");
721
730
exitstatus = EX_OSERR;
722
731
goto fallback;
723
732
case EINVAL:
739
748
}
740
749
}
741
750
742
/* Strip permissions down to nobody */
743
setgid(gid);
751
if(getuid() == 0){
752
/* Work around Debian bug #633582:
753
<http://bugs.debian.org/633582> */
754
int plugindir_fd = open(/* plugindir or */ PDIR, O_RDONLY);
755
if(plugindir_fd == -1){
756
error(0, errno, "open");
757
} else {
758
ret = (int)TEMP_FAILURE_RETRY(fstat(plugindir_fd, &st));
759
if(ret == -1){
760
error(0, errno, "fstat");
761
} else {
762
if(S_ISDIR(st.st_mode) and st.st_uid == 0 and st.st_gid == 0){
763
ret = fchown(plugindir_fd, uid, gid);
764
if(ret == -1){
765
error(0, errno, "fchown");
766
}
767
}
768
}
769
TEMP_FAILURE_RETRY(close(plugindir_fd));
770
}
771
}
772
773
/* Lower permissions */
774
ret = setgid(gid);
744
775
if(ret == -1){
745
perror("setgid");
776
error(0, errno, "setgid");
746
777
}
747
778
ret = setuid(uid);
748
779
if(ret == -1){
749
perror("setuid");
780
error(0, errno, "setuid");
750
781
}
751
782
752
783
/* Open plugin directory with close_on_exec flag */
770
801
);
771
802
}
772
803
if(dir_fd == -1){
773
perror("Could not open plugin dir");
774
exitstatus = EXIT_FAILURE;
804
error(0, errno, "Could not open plugin dir");
805
exitstatus = EX_UNAVAILABLE;
775
806
goto fallback;
776
807
}
777
808
779
810
/* Set the FD_CLOEXEC flag on the directory */
780
811
ret = set_cloexec_flag(dir_fd);
781
812
if(ret < 0){
782
perror("set_cloexec_flag");
813
error(0, errno, "set_cloexec_flag");
783
814
TEMP_FAILURE_RETRY(close(dir_fd));
784
exitstatus = EXIT_FAILURE;
815
exitstatus = EX_OSERR;
785
816
goto fallback;
786
817
}
787
818
#endif /* O_CLOEXEC */
788
819
789
820
dir = fdopendir(dir_fd);
790
821
if(dir == NULL){
791
perror("Could not open plugin dir");
822
error(0, errno, "Could not open plugin dir");
792
823
TEMP_FAILURE_RETRY(close(dir_fd));
793
exitstatus = EXIT_FAILURE;
824
exitstatus = EX_OSERR;
794
825
goto fallback;
795
826
}
796
827
}
806
837
/* All directory entries have been processed */
807
838
if(dirst == NULL){
808
839
if(errno == EBADF){
809
perror("readdir");
810
exitstatus = EXIT_FAILURE;
840
error(0, errno, "readdir");
841
exitstatus = EX_IOERR;
811
842
goto fallback;
812
843
}
813
844
break;
819
850
{
820
851
bool bad_name = false;
821
852
822
const char const *bad_prefixes[] = { ".", "#", NULL };
853
const char * const bad_prefixes[] = { ".", "#", NULL };
823
854
824
const char const *bad_suffixes[] = { "~", "#", ".dpkg-new",
855
const char * const bad_suffixes[] = { "~", "#", ".dpkg-new",
825
856
".dpkg-old",
826
857
".dpkg-bak",
827
858
".dpkg-divert", NULL };
828
for(const char **pre = bad_prefixes; *pre != NULL; pre++){
859
#pragma GCC diagnostic push
860
#pragma GCC diagnostic ignored "-Wcast-qual"
861
for(const char **pre = (const char **)bad_prefixes;
862
*pre != NULL; pre++){
863
#pragma GCC diagnostic pop
829
864
size_t pre_len = strlen(*pre);
830
865
if((d_name_len >= pre_len)
831
866
and strncmp((dirst->d_name), *pre, pre_len) == 0){
840
875
if(bad_name){
841
876
continue;
842
877
}
843
for(const char **suf = bad_suffixes; *suf != NULL; suf++){
878
#pragma GCC diagnostic push
879
#pragma GCC diagnostic ignored "-Wcast-qual"
880
for(const char **suf = (const char **)bad_suffixes;
881
*suf != NULL; suf++){
882
#pragma GCC diagnostic pop
844
883
size_t suf_len = strlen(*suf);
845
884
if((d_name_len >= suf_len)
846
and (strcmp((dirst->d_name)+d_name_len-suf_len, *suf)
885
and (strcmp((dirst->d_name) + d_name_len-suf_len, *suf)
847
886
== 0)){
848
887
if(debug){
849
888
fprintf(stderr, "Ignoring plugin dir entry \"%s\""
869
908
dirst->d_name));
870
909
}
871
910
if(ret < 0){
872
perror("asprintf");
911
error(0, errno, "asprintf");
873
912
continue;
874
913
}
875
914
876
915
ret = (int)TEMP_FAILURE_RETRY(stat(filename, &st));
877
916
if(ret == -1){
878
perror("stat");
917
error(0, errno, "stat");
879
918
free(filename);
880
919
continue;
881
920
}
893
932
894
933
plugin *p = getplugin(dirst->d_name);
895
934
if(p == NULL){
896
perror("getplugin");
935
error(0, errno, "getplugin");
897
936
free(filename);
898
937
continue;
899
938
}
911
950
if(g != NULL){
912
951
for(char **a = g->argv + 1; *a != NULL; a++){
913
952
if(not add_argument(p, *a)){
914
perror("add_argument");
953
error(0, errno, "add_argument");
915
954
}
916
955
}
917
956
/* Add global environment variables */
918
957
for(char **e = g->environ; *e != NULL; e++){
919
958
if(not add_environment(p, *e, false)){
920
perror("add_environment");
959
error(0, errno, "add_environment");
921
960
}
922
961
}
923
962
}
928
967
if(p->environ[0] != NULL){
929
968
for(char **e = environ; *e != NULL; e++){
930
969
if(not add_environment(p, *e, false)){
931
perror("add_environment");
970
error(0, errno, "add_environment");
932
971
}
933
972
}
934
973
}
936
975
int pipefd[2];
937
976
ret = (int)TEMP_FAILURE_RETRY(pipe(pipefd));
938
977
if(ret == -1){
939
perror("pipe");
940
exitstatus = EXIT_FAILURE;
978
error(0, errno, "pipe");
979
exitstatus = EX_OSERR;
941
980
goto fallback;
942
981
}
943
982
/* Ask OS to automatic close the pipe on exec */
944
983
ret = set_cloexec_flag(pipefd[0]);
945
984
if(ret < 0){
946
perror("set_cloexec_flag");
947
exitstatus = EXIT_FAILURE;
985
error(0, errno, "set_cloexec_flag");
986
exitstatus = EX_OSERR;
948
987
goto fallback;
949
988
}
950
989
ret = set_cloexec_flag(pipefd[1]);
951
990
if(ret < 0){
952
perror("set_cloexec_flag");
953
exitstatus = EXIT_FAILURE;
991
error(0, errno, "set_cloexec_flag");
992
exitstatus = EX_OSERR;
954
993
goto fallback;
955
994
}
956
995
/* Block SIGCHLD until process is safely in process list */
958
997
&sigchld_action.sa_mask,
959
998
NULL));
960
999
if(ret < 0){
961
perror("sigprocmask");
962
exitstatus = EXIT_FAILURE;
1000
error(0, errno, "sigprocmask");
1001
exitstatus = EX_OSERR;
963
1002
goto fallback;
964
1003
}
965
1004
/* Starting a new process to be watched */
968
1007
pid = fork();
969
1008
} while(pid == -1 and errno == EINTR);
970
1009
if(pid == -1){
971
perror("fork");
972
exitstatus = EXIT_FAILURE;
1010
error(0, errno, "fork");
1011
exitstatus = EX_OSERR;
973
1012
goto fallback;
974
1013
}
975
1014
if(pid == 0){
976
1015
/* this is the child process */
977
1016
ret = sigaction(SIGCHLD, &old_sigchld_action, NULL);
978
1017
if(ret < 0){
979
perror("sigaction");
980
_exit(EXIT_FAILURE);
1018
error(0, errno, "sigaction");
1019
_exit(EX_OSERR);
981
1020
}
982
1021
ret = sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
983
1022
if(ret < 0){
984
perror("sigprocmask");
985
_exit(EXIT_FAILURE);
1023
error(0, errno, "sigprocmask");
1024
_exit(EX_OSERR);
986
1025
}
987
1026
988
1027
ret = dup2(pipefd[1], STDOUT_FILENO); /* replace our stdout */
989
1028
if(ret == -1){
990
perror("dup2");
991
_exit(EXIT_FAILURE);
1029
error(0, errno, "dup2");
1030
_exit(EX_OSERR);
992
1031
}
993
1032
994
1033
if(dirfd(dir) < 0){
998
1037
}
999
1038
if(p->environ[0] == NULL){
1000
1039
if(execv(filename, p->argv) < 0){
1001
perror("execv");
1002
_exit(EXIT_FAILURE);
1040
error(0, errno, "execv for %s", filename);
1041
_exit(EX_OSERR);
1003
1042
}
1004
1043
} else {
1005
1044
if(execve(filename, p->argv, p->environ) < 0){
1006
perror("execve");
1007
_exit(EXIT_FAILURE);
1045
error(0, errno, "execve for %s", filename);
1046
_exit(EX_OSERR);
1008
1047
}
1009
1048
}
1010
1049
/* no return */
1015
1054
free(filename);
1016
1055
plugin *new_plugin = getplugin(dirst->d_name);
1017
1056
if(new_plugin == NULL){
1018
perror("getplugin");
1057
error(0, errno, "getplugin");
1019
1058
ret = (int)(TEMP_FAILURE_RETRY
1020
1059
(sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask,
1021
1060
NULL)));
1022
1061
if(ret < 0){
1023
perror("sigprocmask");
1062
error(0, errno, "sigprocmask");
1024
1063
}
1025
exitstatus = EXIT_FAILURE;
1064
exitstatus = EX_OSERR;
1026
1065
goto fallback;
1027
1066
}
1028
1067
1035
1074
&sigchld_action.sa_mask,
1036
1075
NULL));
1037
1076
if(ret < 0){
1038
perror("sigprocmask");
1039
exitstatus = EXIT_FAILURE;
1077
error(0, errno, "sigprocmask");
1078
exitstatus = EX_OSERR;
1040
1079
goto fallback;
1041
1080
}
1042
1081
1082
#if defined (__GNUC__) and defined (__GLIBC__)
1083
#if not __GLIBC_PREREQ(2, 16)
1084
#pragma GCC diagnostic push
1085
#pragma GCC diagnostic ignored "-Wsign-conversion"
1086
#endif
1087
#endif
1043
1088
FD_SET(new_plugin->fd, &rfds_all); /* Spurious warning from
1044
-Wconversion */
1089
-Wconversion in GNU libc
1090
before 2.16 */
1091
#if defined (__GNUC__) and defined (__GLIBC__)
1092
#if not __GLIBC_PREREQ(2, 16)
1093
#pragma GCC diagnostic pop
1094
#endif
1095
#endif
1045
1096
1046
1097
if(maxfd < new_plugin->fd){
1047
1098
maxfd = new_plugin->fd;
1068
1119
fd_set rfds = rfds_all;
1069
1120
int select_ret = select(maxfd+1, &rfds, NULL, NULL, NULL);
1070
1121
if(select_ret == -1 and errno != EINTR){
1071
perror("select");
1072
exitstatus = EXIT_FAILURE;
1122
error(0, errno, "select");
1123
exitstatus = EX_OSERR;
1073
1124
goto fallback;
1074
1125
}
1075
1126
/* OK, now either a process completed, or something can be read
1101
1152
}
1102
1153
1103
1154
/* Remove the plugin */
1155
#if defined (__GNUC__) and defined (__GLIBC__)
1156
#if not __GLIBC_PREREQ(2, 16)
1157
#pragma GCC diagnostic push
1158
#pragma GCC diagnostic ignored "-Wsign-conversion"
1159
#endif
1160
#endif
1104
1161
FD_CLR(proc->fd, &rfds_all); /* Spurious warning from
1105
-Wconversion */
1162
-Wconversion in GNU libc
1163
before 2.16 */
1164
#if defined (__GNUC__) and defined (__GLIBC__)
1165
#if not __GLIBC_PREREQ(2, 16)
1166
#pragma GCC diagnostic pop
1167
#endif
1168
#endif
1106
1169
1107
1170
/* Block signal while modifying process_list */
1108
1171
ret = (int)TEMP_FAILURE_RETRY(sigprocmask
1110
1173
&sigchld_action.sa_mask,
1111
1174
NULL));
1112
1175
if(ret < 0){
1113
perror("sigprocmask");
1114
exitstatus = EXIT_FAILURE;
1176
error(0, errno, "sigprocmask");
1177
exitstatus = EX_OSERR;
1115
1178
goto fallback;
1116
1179
}
1117
1180
1124
1187
(sigprocmask(SIG_UNBLOCK,
1125
1188
&sigchld_action.sa_mask, NULL)));
1126
1189
if(ret < 0){
1127
perror("sigprocmask");
1128
exitstatus = EXIT_FAILURE;
1190
error(0, errno, "sigprocmask");
1191
exitstatus = EX_OSERR;
1129
1192
goto fallback;
1130
1193
}
1131
1194
1141
1204
bool bret = print_out_password(proc->buffer,
1142
1205
proc->buffer_length);
1143
1206
if(not bret){
1144
perror("print_out_password");
1145
exitstatus = EXIT_FAILURE;
1207
error(0, errno, "print_out_password");
1208
exitstatus = EX_IOERR;
1146
1209
}
1147
1210
goto fallback;
1148
1211
}
1149
1212
1150
1213
/* This process has not completed. Does it have any output? */
1214
#if defined (__GNUC__) and defined (__GLIBC__)
1215
#if not __GLIBC_PREREQ(2, 16)
1216
#pragma GCC diagnostic push
1217
#pragma GCC diagnostic ignored "-Wsign-conversion"
1218
#endif
1219
#endif
1151
1220
if(proc->eof or not FD_ISSET(proc->fd, &rfds)){ /* Spurious
1152
1221
warning from
1153
-Wconversion */
1222
-Wconversion
1223
in GNU libc
1224
before
1225
2.16 */
1226
#if defined (__GNUC__) and defined (__GLIBC__)
1227
#if not __GLIBC_PREREQ(2, 16)
1228
#pragma GCC diagnostic pop
1229
#endif
1230
#endif
1154
1231
/* This process had nothing to say at this time */
1155
1232
proc = proc->next;
1156
1233
continue;
1160
1237
proc->buffer = realloc(proc->buffer, proc->buffer_size
1161
1238
+ (size_t) BUFFER_SIZE);
1162
1239
if(proc->buffer == NULL){
1163
perror("malloc");
1164
exitstatus = EXIT_FAILURE;
1240
error(0, errno, "malloc");
1241
exitstatus = EX_OSERR;
1165
1242
goto fallback;
1166
1243
}
1167
1244
proc->buffer_size += BUFFER_SIZE;
1188
1265
1189
1266
fallback:
1190
1267
1191
if(plugin_list == NULL or exitstatus != EXIT_SUCCESS){
1268
if(plugin_list == NULL or (exitstatus != EXIT_SUCCESS
1269
and exitstatus != EX_OK)){
1192
1270
/* Fallback if all plugins failed, none are found or an error
1193
1271
occured */
1194
1272
bool bret;
1202
1280
}
1203
1281
bret = print_out_password(passwordbuffer, len);
1204
1282
if(not bret){
1205
perror("print_out_password");
1206
exitstatus = EXIT_FAILURE;
1283
error(0, errno, "print_out_password");
1284
exitstatus = EX_IOERR;
1207
1285
}
1208
1286
}
1209
1287
1210
1288
/* Restore old signal handler */
1211
1289
ret = sigaction(SIGCHLD, &old_sigchld_action, NULL);
1212
1290
if(ret == -1){
1213
perror("sigaction");
1214
exitstatus = EXIT_FAILURE;
1291
error(0, errno, "sigaction");
1292
exitstatus = EX_OSERR;
1215
1293
}
1216
1294
1217
1295
if(custom_argv != NULL){
1232
1310
ret = kill(p->pid, SIGTERM);
1233
1311
if(ret == -1 and errno != ESRCH){
1234
1312
/* Set-uid proccesses might not get closed */
1235
perror("kill");
1313
error(0, errno, "kill");
1236
1314
}
1237
1315
}
1238
1316
}
1242
1320
ret = wait(NULL);
1243
1321
} while(ret >= 0);
1244
1322
if(errno != ECHILD){
1245
perror("wait");
1323
error(0, errno, "wait");
1246
1324
}
1247
1325
1248
1326
free_plugin_list();
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0