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- Committer: Teddy Hogeborn
- Date: 2008-09-06 16:11:50 UTC
- Revision ID: teddy@fukt.bsnet.se-20080906161150-1umb8yz6a29zxg28
* Makefile (install-client): Add "/etc/plugins.d/README".
(uninstall-client): Remove "/etc/plugins.d/README".
* etc-plugins.d-README: New file.
(uninstall-client): Remove "/etc/plugins.d/README".
* etc-plugins.d-README: New file.
added
removed
plugin-runner.c
72
72
const char *argp_program_version = "plugin-runner 1.0";
73
73
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
74
74
75
struct process;
76
77
typedef struct process{
75
struct plugin;
76
77
typedef struct plugin{
78
char *name; /* can be NULL or any plugin name */
79
char **argv;
80
int argc;
81
char **environ;
82
int envc;
83
bool disabled;
84
85
/* Variables used for running processes*/
78
86
pid_t pid;
79
87
int fd;
80
88
char *buffer;
83
91
bool eof;
84
92
volatile bool completed;
85
93
volatile int status;
86
struct process *next;
87
} process;
88
89
typedef struct plugin{
90
char *name; /* can be NULL or any plugin name */
91
char **argv;
92
int argc;
93
char **environ;
94
int envc;
95
bool disabled;
96
94
struct plugin *next;
97
95
} plugin;
98
96
99
static plugin *getplugin(char *name, plugin **plugin_list){
100
for (plugin *p = *plugin_list; p != NULL; p = p->next){
97
static plugin *plugin_list = NULL;
98
99
/* Gets an existing plugin based on name,
100
or if none is found, creates a new one */
101
static plugin *getplugin(char *name){
102
/* Check for exiting plugin with that name */
103
for (plugin *p = plugin_list; p != NULL; p = p->next){
101
104
if ((p->name == name)
102
105
or (p->name and name and (strcmp(p->name, name) == 0))){
103
106
return p;
118
121
119
122
*new_plugin = (plugin) { .name = copy_name,
120
123
.argc = 1,
121
.envc = 0,
122
124
.disabled = false,
123
.next = *plugin_list };
125
.next = plugin_list };
124
126
125
127
new_plugin->argv = malloc(sizeof(char *) * 2);
126
128
if (new_plugin->argv == NULL){
130
132
}
131
133
new_plugin->argv[0] = copy_name;
132
134
new_plugin->argv[1] = NULL;
133
135
134
136
new_plugin->environ = malloc(sizeof(char *));
135
137
if(new_plugin->environ == NULL){
136
138
free(copy_name);
139
141
return NULL;
140
142
}
141
143
new_plugin->environ[0] = NULL;
144
142
145
/* Append the new plugin to the list */
143
*plugin_list = new_plugin;
146
plugin_list = new_plugin;
144
147
return new_plugin;
145
148
}
146
149
176
179
}
177
180
178
181
/* Add to a plugin's environment */
179
static bool add_environment(plugin *p, const char *def){
182
static bool add_environment(plugin *p, const char *def, bool replace){
180
183
if(p == NULL){
181
184
return false;
182
185
}
186
/* namelen = length of name of environment variable */
187
size_t namelen = (size_t)(strchrnul(def, '=') - def);
188
/* Search for this environment variable */
189
for(char **e = p->environ; *e != NULL; e++){
190
if(strncmp(*e, def, namelen + 1) == 0){
191
/* It already exists */
192
if(replace){
193
char *new = realloc(*e, strlen(def) + 1);
194
if(new == NULL){
195
return false;
196
}
197
*e = new;
198
strcpy(*e, def);
199
}
200
return true;
201
}
202
}
183
203
return add_to_char_array(def, &(p->environ), &(p->envc));
184
204
}
185
205
186
187
206
/*
188
207
* Based on the example in the GNU LibC manual chapter 13.13 "File
189
208
* Descriptor Flags".
200
219
return fcntl(fd, F_SETFD, ret | FD_CLOEXEC);
201
220
}
202
221
203
process *process_list = NULL;
204
222
205
223
/* Mark processes as completed when they exit, and save their exit
206
224
status. */
207
225
void handle_sigchld(__attribute__((unused)) int sig){
208
226
while(true){
209
process *proc = process_list;
227
plugin *proc = plugin_list;
210
228
int status;
211
229
pid_t pid = waitpid(-1, &status, WNOHANG);
212
230
if(pid == 0){
220
238
/* No child processes */
221
239
break;
222
240
}
223
241
224
242
/* A child exited, find it in process_list */
225
243
while(proc != NULL and proc->pid != pid){
226
244
proc = proc->next;
234
252
}
235
253
}
236
254
255
/* Prints out a password to stdout */
237
256
bool print_out_password(const char *buffer, size_t length){
238
257
ssize_t ret;
239
if(length>0 and buffer[length-1] == '\n'){
240
length--;
241
}
242
258
for(size_t written = 0; written < length; written += (size_t)ret){
243
259
ret = TEMP_FAILURE_RETRY(write(STDOUT_FILENO, buffer + written,
244
260
length - written));
249
265
return true;
250
266
}
251
267
252
static void free_plugin_list(plugin *plugin_list){
253
for(plugin *next; plugin_list != NULL; plugin_list = next){
254
next = plugin_list->next;
255
for(char **arg = plugin_list->argv; *arg != NULL; arg++){
256
free(*arg);
257
}
258
free(plugin_list->argv);
259
for(char **env = plugin_list->environ; *env != NULL; env++){
260
free(*env);
261
}
262
free(plugin_list->environ);
263
free(plugin_list);
268
/* Removes and free a plugin from the plugin list */
269
static void free_plugin(plugin *plugin_node){
270
271
for(char **arg = plugin_node->argv; *arg != NULL; arg++){
272
free(*arg);
273
}
274
free(plugin_node->argv);
275
for(char **env = plugin_node->environ; *env != NULL; env++){
276
free(*env);
277
}
278
free(plugin_node->environ);
279
free(plugin_node->buffer);
280
281
/* Removes the plugin from the singly-linked list */
282
if(plugin_node == plugin_list){
283
/* First one - simple */
284
plugin_list = plugin_list->next;
285
} else {
286
/* Second one or later */
287
for(plugin *p = plugin_list; p != NULL; p = p->next){
288
if(p->next == plugin_node){
289
p->next = plugin_node->next;
290
break;
291
}
292
}
293
}
294
295
free(plugin_node);
296
}
297
298
static void free_plugin_list(void){
299
while(plugin_list != NULL){
300
free_plugin(plugin_list);
264
301
}
265
302
}
266
303
304
341
{ .name = "global-options", .key = 'g',
305
342
.arg = "OPTION[,OPTION[,...]]",
306
343
.doc = "Options passed to all plugins" },
307
{ .name = "global-envs", .key = 'e',
344
{ .name = "global-env", .key = 'G',
308
345
.arg = "VAR=value",
309
346
.doc = "Environment variable passed to all plugins" },
310
347
{ .name = "options-for", .key = 'o',
311
348
.arg = "PLUGIN:OPTION[,OPTION[,...]]",
312
349
.doc = "Options passed only to specified plugin" },
313
{ .name = "envs-for", .key = 'f',
350
{ .name = "env-for", .key = 'E',
314
351
.arg = "PLUGIN:ENV=value",
315
352
.doc = "Environment variable passed to specified plugin" },
316
353
{ .name = "disable", .key = 'd',
317
354
.arg = "PLUGIN",
318
355
.doc = "Disable a specific plugin", .group = 1 },
356
{ .name = "enable", .key = 'e',
357
.arg = "PLUGIN",
358
.doc = "Enable a specific plugin", .group = 1 },
319
359
{ .name = "plugin-dir", .key = 128,
320
360
.arg = "DIRECTORY",
321
361
.doc = "Specify a different plugin directory", .group = 2 },
333
373
{ .name = NULL }
334
374
};
335
375
336
error_t parse_opt (int key, char *arg, struct argp_state *state) {
337
/* Get the INPUT argument from `argp_parse', which we know is a
338
pointer to our plugin list pointer. */
339
plugin **plugins = state->input;
376
error_t parse_opt (int key, char *arg, __attribute__((unused))
377
struct argp_state *state) {
340
378
switch (key) {
341
case 'g':
379
case 'g': /* --global-options */
342
380
if (arg != NULL){
343
381
char *p;
344
382
while((p = strsep(&arg, ",")) != NULL){
345
383
if(p[0] == '\0'){
346
384
continue;
347
385
}
348
if(not add_argument(getplugin(NULL, plugins), p)){
386
if(not add_argument(getplugin(NULL), p)){
349
387
perror("add_argument");
350
388
return ARGP_ERR_UNKNOWN;
351
389
}
352
390
}
353
391
}
354
392
break;
355
case 'e':
393
case 'G': /* --global-env */
356
394
if(arg == NULL){
357
395
break;
358
396
}
361
399
if(envdef == NULL){
362
400
break;
363
401
}
364
if(not add_environment(getplugin(NULL, plugins), envdef)){
402
if(not add_environment(getplugin(NULL), envdef, true)){
365
403
perror("add_environment");
366
404
}
367
405
}
368
406
break;
369
case 'o':
407
case 'o': /* --options-for */
370
408
if (arg != NULL){
371
409
char *p_name = strsep(&arg, ":");
372
if(p_name[0] == '\0'){
410
if(p_name[0] == '\0' or arg == NULL){
373
411
break;
374
412
}
375
413
char *opt = strsep(&arg, ":");
376
if(opt[0] == '\0'){
414
if(opt[0] == '\0' or opt == NULL){
377
415
break;
378
416
}
379
if(opt != NULL){
380
char *p;
381
while((p = strsep(&opt, ",")) != NULL){
382
if(p[0] == '\0'){
383
continue;
384
}
385
if(not add_argument(getplugin(p_name, plugins), p)){
386
perror("add_argument");
387
return ARGP_ERR_UNKNOWN;
388
}
417
char *p;
418
while((p = strsep(&opt, ",")) != NULL){
419
if(p[0] == '\0'){
420
continue;
421
}
422
if(not add_argument(getplugin(p_name), p)){
423
perror("add_argument");
424
return ARGP_ERR_UNKNOWN;
389
425
}
390
426
}
391
427
}
392
428
break;
393
case 'f':
429
case 'E': /* --env-for */
394
430
if(arg == NULL){
395
431
break;
396
432
}
404
440
break;
405
441
}
406
442
envdef++;
407
if(not add_environment(getplugin(p_name, plugins), envdef)){
443
if(not add_environment(getplugin(p_name), envdef, true)){
408
444
perror("add_environment");
409
445
}
410
446
}
411
447
break;
412
case 'd':
448
case 'd': /* --disable */
413
449
if (arg != NULL){
414
plugin *p = getplugin(arg, plugins);
450
plugin *p = getplugin(arg);
415
451
if(p == NULL){
416
452
return ARGP_ERR_UNKNOWN;
417
453
}
418
454
p->disabled = true;
419
455
}
420
456
break;
421
case 128:
457
case 'e': /* --enable */
458
if (arg != NULL){
459
plugin *p = getplugin(arg);
460
if(p == NULL){
461
return ARGP_ERR_UNKNOWN;
462
}
463
p->disabled = false;
464
}
465
break;
466
case 128: /* --plugin-dir */
422
467
plugindir = strdup(arg);
423
468
if(plugindir == NULL){
424
469
perror("strdup");
425
470
}
426
471
break;
427
case 129:
428
argfile = strdup(arg);
429
if(argfile == NULL){
430
perror("strdup");
431
}
432
break;
433
case 130:
472
case 129: /* --config-file */
473
/* This is already done by parse_opt_config_file() */
474
break;
475
case 130: /* --userid */
434
476
uid = (uid_t)strtol(arg, NULL, 10);
435
477
break;
436
case 131:
478
case 131: /* --groupid */
437
479
gid = (gid_t)strtol(arg, NULL, 10);
438
480
break;
439
case 132:
481
case 132: /* --debug */
440
482
debug = true;
441
483
break;
442
484
case ARGP_KEY_ARG:
450
492
return 0;
451
493
}
452
494
453
plugin *plugin_list = NULL;
495
/* This option parser is the same as parse_opt() above, except it
496
ignores everything but the --config-file option. */
497
error_t parse_opt_config_file (int key, char *arg,
498
__attribute__((unused))
499
struct argp_state *state) {
500
switch (key) {
501
case 'g': /* --global-options */
502
case 'G': /* --global-env */
503
case 'o': /* --options-for */
504
case 'E': /* --env-for */
505
case 'd': /* --disable */
506
case 'e': /* --enable */
507
case 128: /* --plugin-dir */
508
break;
509
case 129: /* --config-file */
510
argfile = strdup(arg);
511
if(argfile == NULL){
512
perror("strdup");
513
}
514
break;
515
case 130: /* --userid */
516
case 131: /* --groupid */
517
case 132: /* --debug */
518
case ARGP_KEY_ARG:
519
case ARGP_KEY_END:
520
break;
521
default:
522
return ARGP_ERR_UNKNOWN;
523
}
524
return 0;
525
}
454
526
455
struct argp argp = { .options = options, .parser = parse_opt,
456
.args_doc = "[+PLUS_SEPARATED_OPTIONS]",
527
struct argp argp = { .options = options,
528
.parser = parse_opt_config_file,
529
.args_doc = "",
457
530
.doc = "Mandos plugin runner -- Run plugins" };
458
531
459
ret = argp_parse (&argp, argc, argv, 0, 0, &plugin_list);
532
/* Parse using the parse_opt_config_file in order to get the custom
533
config file location, if any. */
534
ret = argp_parse (&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
460
535
if (ret == ARGP_ERR_UNKNOWN){
461
536
fprintf(stderr, "Unknown error while parsing arguments\n");
462
537
exitstatus = EXIT_FAILURE;
463
538
goto fallback;
464
539
}
465
540
541
/* Reset to the normal argument parser */
542
argp.parser = parse_opt;
543
544
/* Open the configfile if available */
466
545
if (argfile == NULL){
467
546
conffp = fopen(AFILE, "r");
468
547
} else {
469
548
conffp = fopen(argfile, "r");
470
}
471
549
}
472
550
if(conffp != NULL){
473
551
char *org_line = NULL;
474
552
char *p, *arg, *new_arg, *line;
486
564
}
487
565
custom_argv[0] = argv[0];
488
566
custom_argv[1] = NULL;
489
567
568
/* for each line in the config file, strip whitespace and ignore
569
commented text */
490
570
while(true){
491
571
sret = getline(&org_line, &size, conffp);
492
572
if(sret == -1){
521
601
}
522
602
}
523
603
free(org_line);
524
} else{
604
} else {
525
605
/* Check for harmful errors and go to fallback. Other errors might
526
606
not affect opening plugins */
527
607
if (errno == EMFILE or errno == ENFILE or errno == ENOMEM){
530
610
goto fallback;
531
611
}
532
612
}
533
613
/* If there was any arguments from configuration file,
614
pass them to parser as command arguments */
534
615
if(custom_argv != NULL){
535
ret = argp_parse (&argp, custom_argc, custom_argv, 0, 0, &plugin_list);
616
ret = argp_parse (&argp, custom_argc, custom_argv, ARGP_IN_ORDER,
617
0, NULL);
536
618
if (ret == ARGP_ERR_UNKNOWN){
537
619
fprintf(stderr, "Unknown error while parsing arguments\n");
538
620
exitstatus = EXIT_FAILURE;
540
622
}
541
623
}
542
624
625
/* Parse actual command line arguments, to let them override the
626
config file */
627
ret = argp_parse (&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
628
if (ret == ARGP_ERR_UNKNOWN){
629
fprintf(stderr, "Unknown error while parsing arguments\n");
630
exitstatus = EXIT_FAILURE;
631
goto fallback;
632
}
633
543
634
if(debug){
544
635
for(plugin *p = plugin_list; p != NULL; p=p->next){
545
636
fprintf(stderr, "Plugin: %s has %d arguments\n",
554
645
}
555
646
}
556
647
648
/* Strip permissions down to nobody */
557
649
ret = setuid(uid);
558
650
if (ret == -1){
559
651
perror("setuid");
560
}
561
652
}
562
653
setgid(gid);
563
654
if (ret == -1){
564
655
perror("setgid");
565
656
}
566
657
567
658
if (plugindir == NULL){
568
659
dir = opendir(PDIR);
569
660
} else {
591
682
592
683
FD_ZERO(&rfds_all);
593
684
685
/* Read and execute any executable in the plugin directory*/
594
686
while(true){
595
687
dirst = readdir(dir);
596
688
597
// All directory entries have been processed
689
/* All directory entries have been processed */
598
690
if(dirst == NULL){
599
691
if (errno == EBADF){
600
692
perror("readdir");
606
698
607
699
d_name_len = strlen(dirst->d_name);
608
700
609
// Ignore dotfiles, backup files and other junk
701
/* Ignore dotfiles, backup files and other junk */
610
702
{
611
703
bool bad_name = false;
612
704
627
719
break;
628
720
}
629
721
}
630
631
722
if(bad_name){
632
723
continue;
633
724
}
634
635
725
for(const char **suf = bad_suffixes; *suf != NULL; suf++){
636
726
size_t suf_len = strlen(*suf);
637
727
if((d_name_len >= suf_len)
652
742
}
653
743
654
744
char *filename;
655
ret = asprintf(&filename, "%s/%s", plugindir, dirst->d_name);
745
if(plugindir == NULL){
746
ret = asprintf(&filename, PDIR "/%s", dirst->d_name);
747
} else {
748
ret = asprintf(&filename, "%s/%s", plugindir, dirst->d_name);
749
}
656
750
if(ret < 0){
657
751
perror("asprintf");
658
752
continue;
664
758
free(filename);
665
759
continue;
666
760
}
667
761
762
/* Ignore non-executable files */
668
763
if (not S_ISREG(st.st_mode) or (access(filename, X_OK) != 0)){
669
764
if(debug){
670
765
fprintf(stderr, "Ignoring plugin dir entry \"%s\""
673
768
free(filename);
674
769
continue;
675
770
}
676
plugin *p = getplugin(dirst->d_name, &plugin_list);
771
772
plugin *p = getplugin(dirst->d_name);
677
773
if(p == NULL){
678
774
perror("getplugin");
679
775
free(filename);
689
785
}
690
786
{
691
787
/* Add global arguments to argument list for this plugin */
692
plugin *g = getplugin(NULL, &plugin_list);
788
plugin *g = getplugin(NULL);
693
789
if(g != NULL){
694
790
for(char **a = g->argv + 1; *a != NULL; a++){
695
791
if(not add_argument(p, *a)){
698
794
}
699
795
/* Add global environment variables */
700
796
for(char **e = g->environ; *e != NULL; e++){
701
if(not add_environment(p, *e)){
797
if(not add_environment(p, *e, false)){
702
798
perror("add_environment");
703
799
}
704
800
}
709
805
process, too. */
710
806
if(p->environ[0] != NULL){
711
807
for(char **e = environ; *e != NULL; e++){
712
char *copy = strdup(*e);
713
if(copy == NULL){
714
perror("strdup");
715
continue;
716
}
717
if(not add_environment(p, copy)){
808
if(not add_environment(p, *e, false)){
718
809
perror("add_environment");
719
810
}
720
811
}
727
818
exitstatus = EXIT_FAILURE;
728
819
goto fallback;
729
820
}
821
/* Ask OS to automatic close the pipe on exec */
730
822
ret = set_cloexec_flag(pipefd[0]);
731
823
if(ret < 0){
732
824
perror("set_cloexec_flag");
746
838
exitstatus = EXIT_FAILURE;
747
839
goto fallback;
748
840
}
749
// Starting a new process to be watched
841
/* Starting a new process to be watched */
750
842
pid_t pid = fork();
751
843
if(pid == -1){
752
844
perror("fork");
790
882
}
791
883
/* no return */
792
884
}
793
/* parent process */
885
/* Parent process */
886
close(pipefd[1]); /* Close unused write end of pipe */
794
887
free(filename);
795
close(pipefd[1]); /* close unused write end of pipe */
796
process *new_process = malloc(sizeof(process));
797
if (new_process == NULL){
798
perror("malloc");
888
plugin *new_plugin = getplugin(dirst->d_name);
889
if (new_plugin == NULL){
890
perror("getplugin");
799
891
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
800
892
if(ret < 0){
801
perror("sigprocmask");
893
perror("sigprocmask");
802
894
}
803
895
exitstatus = EXIT_FAILURE;
804
896
goto fallback;
805
897
}
806
898
807
*new_process = (struct process){ .pid = pid,
808
.fd = pipefd[0],
809
.next = process_list };
810
// List handling
811
process_list = new_process;
899
new_plugin->pid = pid;
900
new_plugin->fd = pipefd[0];
901
812
902
/* Unblock SIGCHLD so signal handler can be run if this process
813
903
has already completed */
814
904
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
818
908
goto fallback;
819
909
}
820
910
821
FD_SET(new_process->fd, &rfds_all);
911
FD_SET(new_plugin->fd, &rfds_all);
822
912
823
if (maxfd < new_process->fd){
824
maxfd = new_process->fd;
913
if (maxfd < new_plugin->fd){
914
maxfd = new_plugin->fd;
825
915
}
826
916
827
917
}
828
829
free_plugin_list(plugin_list);
830
plugin_list = NULL;
831
918
832
919
closedir(dir);
833
920
dir = NULL;
834
835
if (process_list == NULL){
836
fprintf(stderr, "No plugin processes started. Incorrect plugin"
837
" directory?\n");
838
process_list = NULL;
921
922
for(plugin *p = plugin_list; p != NULL; p = p->next){
923
if(p->pid != 0){
924
break;
925
}
926
if(p->next == NULL){
927
fprintf(stderr, "No plugin processes started. Incorrect plugin"
928
" directory?\n");
929
free_plugin_list();
930
}
839
931
}
840
while(process_list){
932
933
/* Main loop while running plugins exist */
934
while(plugin_list){
841
935
fd_set rfds = rfds_all;
842
936
int select_ret = select(maxfd+1, &rfds, NULL, NULL, NULL);
843
937
if (select_ret == -1){
847
941
}
848
942
/* OK, now either a process completed, or something can be read
849
943
from one of them */
850
for(process *proc = process_list; proc ; proc = proc->next){
944
for(plugin *proc = plugin_list; proc != NULL; proc = proc->next){
851
945
/* Is this process completely done? */
852
946
if(proc->eof and proc->completed){
853
947
/* Only accept the plugin output if it exited cleanly */
854
948
if(not WIFEXITED(proc->status)
855
949
or WEXITSTATUS(proc->status) != 0){
856
950
/* Bad exit by plugin */
951
857
952
if(debug){
858
953
if(WIFEXITED(proc->status)){
859
954
fprintf(stderr, "Plugin %u exited with status %d\n",
868
963
(unsigned int) (proc->pid));
869
964
}
870
965
}
966
871
967
/* Remove the plugin */
872
968
FD_CLR(proc->fd, &rfds_all);
969
873
970
/* Block signal while modifying process_list */
874
971
ret = sigprocmask(SIG_BLOCK, &sigchld_action.sa_mask, NULL);
875
972
if(ret < 0){
877
974
exitstatus = EXIT_FAILURE;
878
975
goto fallback;
879
976
}
880
/* Delete this process entry from the list */
881
if(process_list == proc){
882
/* First one - simple */
883
process_list = proc->next;
884
} else {
885
/* Second one or later */
886
for(process *p = process_list; p != NULL; p = p->next){
887
if(p->next == proc){
888
p->next = proc->next;
889
break;
890
}
891
}
892
}
977
free_plugin(proc);
893
978
/* We are done modifying process list, so unblock signal */
894
979
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask,
895
980
NULL);
896
981
if(ret < 0){
897
982
perror("sigprocmask");
898
}
899
free(proc->buffer);
900
free(proc);
901
/* We deleted this process from the list, so we can't go
902
proc->next. Therefore, start over from the beginning of
903
the process list */
904
break;
983
exitstatus = EXIT_FAILURE;
984
goto fallback;
985
}
986
987
if(plugin_list == NULL){
988
break;
989
}
990
continue;
905
991
}
992
906
993
/* This process exited nicely, so print its buffer */
907
994
908
995
bool bret = print_out_password(proc->buffer,
913
1000
}
914
1001
goto fallback;
915
1002
}
1003
916
1004
/* This process has not completed. Does it have any output? */
917
1005
if(proc->eof or not FD_ISSET(proc->fd, &rfds)){
918
1006
/* This process had nothing to say at this time */
948
1036
949
1037
fallback:
950
1038
951
if(process_list == NULL or exitstatus != EXIT_SUCCESS){
1039
if(plugin_list == NULL or exitstatus != EXIT_SUCCESS){
952
1040
/* Fallback if all plugins failed, none are found or an error
953
1041
occured */
954
1042
bool bret;
955
1043
fprintf(stderr, "Going to fallback mode using getpass(3)\n");
956
1044
char *passwordbuffer = getpass("Password: ");
957
bret = print_out_password(passwordbuffer, strlen(passwordbuffer));
1045
size_t len = strlen(passwordbuffer);
1046
/* Strip trailing newline */
1047
if(len > 0 and passwordbuffer[len-1] == '\n'){
1048
passwordbuffer[len-1] = '\0'; /* not strictly necessary */
1049
len--;
1050
}
1051
bret = print_out_password(passwordbuffer, len);
958
1052
if(not bret){
959
1053
perror("print_out_password");
960
1054
exitstatus = EXIT_FAILURE;
974
1068
}
975
1069
free(custom_argv);
976
1070
}
977
free_plugin_list(plugin_list);
978
1071
979
1072
if(dir != NULL){
980
1073
closedir(dir);
981
1074
}
982
1075
983
1076
/* Free the process list and kill the processes */
984
for(process *next; process_list != NULL; process_list = next){
985
next = process_list->next;
986
close(process_list->fd);
987
ret = kill(process_list->pid, SIGTERM);
988
if(ret == -1 and errno != ESRCH){
989
/* set-uid proccesses migth not get closed */
990
perror("kill");
1077
for(plugin *p = plugin_list; p != NULL; p = p->next){
1078
if(p->pid != 0){
1079
close(p->fd);
1080
ret = kill(p->pid, SIGTERM);
1081
if(ret == -1 and errno != ESRCH){
1082
/* Set-uid proccesses might not get closed */
1083
perror("kill");
1084
}
991
1085
}
992
free(process_list->buffer);
993
free(process_list);
994
1086
}
995
1087
996
1088
/* Wait for any remaining child processes to terminate */
1001
1093
perror("wait");
1002
1094
}
1003
1095
1096
free_plugin_list();
1097
1004
1098
free(plugindir);
1005
1099
free(argfile);
1006
1100
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0