To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to plugin-runner.c
- browse files at revision 134
- compare with another revision
- download diff
- download tarball
- view history from revision 134
- Committer: Teddy Hogeborn
- Date: 2008-09-01 08:29:23 UTC
- Revision ID: teddy@fukt.bsnet.se-20080901082923-i2liq6t7warmu9xe
* mandos.xml: Enclose "RAM" with <acronym>.
* overview.xml: - '' -
* plugin-runner.xml (DESCRIPTION): Improved wording.
(PURPOSE): New section.
(OPTIONS): Improved wording.
(OVERVIEW, PLUGINS): New section.
(FALLBACK): New empty placeholder section.
* plugins.d/password-prompt.xml: Enclose "RAM" with <acronym>.
* overview.xml: - '' -
* plugin-runner.xml (DESCRIPTION): Improved wording.
(PURPOSE): New section.
(OPTIONS): Improved wording.
(OVERVIEW, PLUGINS): New section.
(FALLBACK): New empty placeholder section.
* plugins.d/password-prompt.xml: Enclose "RAM" with <acronym>.
- files added:
- .bzrignore
- files modified:
- Makefile
added
removed
plugin-runner.c
56
56
#include <argp.h> /* struct argp_option, struct
57
57
argp_state, struct argp,
58
58
argp_parse(), ARGP_ERR_UNKNOWN,
59
ARGP_KEY_END, ARGP_KEY_ARG, error_t */
59
ARGP_KEY_END, ARGP_KEY_ARG,
60
error_t */
60
61
#include <signal.h> /* struct sigaction, sigemptyset(),
61
62
sigaddset(), sigaction(),
62
63
sigprocmask(), SIG_BLOCK, SIGCHLD,
64
65
#include <errno.h> /* errno, EBADF */
65
66
66
67
#define BUFFER_SIZE 256
67
#define ARGFILE "/conf/conf.d/mandos/plugin-runner.conf"
68
69
#define PDIR "/lib/mandos/plugins.d"
70
#define AFILE "/conf/conf.d/mandos/plugin-runner.conf"
68
71
69
72
const char *argp_program_version = "plugin-runner 1.0";
70
73
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
71
74
72
struct process;
73
74
typedef struct process{
75
pid_t pid;
76
int fd;
77
char *buffer;
78
size_t buffer_size;
79
size_t buffer_length;
80
bool eof;
81
bool completed;
82
int status;
83
struct process *next;
84
} process;
75
struct plugin;
85
76
86
77
typedef struct plugin{
87
78
char *name; /* can be NULL or any plugin name */
90
81
char **environ;
91
82
int envc;
92
83
bool disabled;
84
85
/* Variables used for running processes*/
86
pid_t pid;
87
int fd;
88
char *buffer;
89
size_t buffer_size;
90
size_t buffer_length;
91
bool eof;
92
volatile bool completed;
93
volatile int status;
93
94
struct plugin *next;
94
95
} plugin;
95
96
96
static plugin *getplugin(char *name, plugin **plugin_list){
97
for (plugin *p = *plugin_list; p != NULL; p = p->next){
97
static plugin *plugin_list = NULL;
98
99
/* Gets a 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){
98
104
if ((p->name == name)
99
105
or (p->name and name and (strcmp(p->name, name) == 0))){
100
106
return p;
105
111
if (new_plugin == NULL){
106
112
return NULL;
107
113
}
108
char *copy_name = strdup(name);
109
if(copy_name == NULL){
110
return NULL;
114
char *copy_name = NULL;
115
if(name != NULL){
116
copy_name = strdup(name);
117
if(copy_name == NULL){
118
return NULL;
119
}
111
120
}
112
121
113
122
*new_plugin = (plugin) { .name = copy_name,
114
123
.argc = 1,
115
.envc = 0,
116
124
.disabled = false,
117
.next = *plugin_list };
125
.next = plugin_list };
118
126
119
127
new_plugin->argv = malloc(sizeof(char *) * 2);
120
128
if (new_plugin->argv == NULL){
129
free(copy_name);
121
130
free(new_plugin);
122
131
return NULL;
123
132
}
126
135
127
136
new_plugin->environ = malloc(sizeof(char *));
128
137
if(new_plugin->environ == NULL){
138
free(copy_name);
129
139
free(new_plugin->argv);
130
140
free(new_plugin);
131
141
return NULL;
132
142
}
133
143
new_plugin->environ[0] = NULL;
144
134
145
/* Append the new plugin to the list */
135
*plugin_list = new_plugin;
146
plugin_list = new_plugin;
136
147
return new_plugin;
137
148
}
138
149
175
186
return add_to_char_array(def, &(p->environ), &(p->envc));
176
187
}
177
188
178
179
189
/*
180
190
* Based on the example in the GNU LibC manual chapter 13.13 "File
181
191
* Descriptor Flags".
192
202
return fcntl(fd, F_SETFD, ret | FD_CLOEXEC);
193
203
}
194
204
195
process *process_list = NULL;
196
205
197
/* Mark a process as completed when it exits, and save its exit
206
/* Mark processes as completed when they exit, and save their exit
198
207
status. */
199
208
void handle_sigchld(__attribute__((unused)) int sig){
200
process *proc = process_list;
201
int status;
202
pid_t pid = wait(&status);
203
if(pid == -1){
204
perror("wait");
205
return;
206
}
207
while(proc != NULL and proc->pid != pid){
208
proc = proc->next;
209
}
210
if(proc == NULL){
211
/* Process not found in process list */
212
return;
213
}
214
proc->status = status;
215
proc->completed = true;
209
while(true){
210
plugin *proc = plugin_list;
211
int status;
212
pid_t pid = waitpid(-1, &status, WNOHANG);
213
if(pid == 0){
214
/* Only still running child processes */
215
break;
216
}
217
if(pid == -1){
218
if (errno != ECHILD){
219
perror("waitpid");
220
}
221
/* No child processes */
222
break;
223
}
224
225
/* A child exited, find it in process_list */
226
while(proc != NULL and proc->pid != pid){
227
proc = proc->next;
228
}
229
if(proc == NULL){
230
/* Process not found in process list */
231
continue;
232
}
233
proc->status = status;
234
proc->completed = true;
235
}
216
236
}
217
237
238
/* Prints out a password to stdout */
218
239
bool print_out_password(const char *buffer, size_t length){
219
240
ssize_t ret;
220
241
if(length>0 and buffer[length-1] == '\n'){
230
251
return true;
231
252
}
232
253
233
char **add_to_argv(char **argv, int *argc, char *arg){
234
if (argv == NULL){
235
*argc = 1;
236
argv = malloc(sizeof(char*) * 2);
237
if(argv == NULL){
238
return NULL;
254
/* Removes and free a plugin from the plugin list */
255
static void free_plugin(plugin *plugin_node){
256
257
for(char **arg = plugin_node->argv; *arg != NULL; arg++){
258
free(*arg);
259
}
260
free(plugin_node->argv);
261
for(char **env = plugin_node->environ; *env != NULL; env++){
262
free(*env);
263
}
264
free(plugin_node->environ);
265
free(plugin_node->buffer);
266
267
/* Removes the plugin from the singly-linked list */
268
if(plugin_node == plugin_list){
269
/* First one - simple */
270
plugin_list = plugin_list->next;
271
} else {
272
/* Second one or later */
273
for(plugin *p = plugin_list; p != NULL; p = p->next){
274
if(p->next == plugin_node){
275
p->next = plugin_node->next;
276
break;
277
}
239
278
}
240
argv[0] = NULL; /* Will be set to argv[0] in main before parsing */
241
argv[1] = NULL;
242
}
243
*argc += 1;
244
argv = realloc(argv, sizeof(char *)
245
* ((unsigned int) *argc + 1));
246
if(argv == NULL){
247
return NULL;
248
}
249
argv[*argc-1] = arg;
250
argv[*argc] = NULL;
251
return argv;
279
}
280
281
free(plugin_node);
252
282
}
253
283
254
static void free_plugin_list(plugin *plugin_list){
255
for(plugin *next = plugin_list; plugin_list != NULL; plugin_list = next){
256
next = plugin_list->next;
257
free(plugin_list->name);
258
for(char **arg = plugin_list->argv; *arg != NULL; arg++){
259
free(*arg);
260
}
261
free(plugin_list->argv);
262
for(char **env = plugin_list->environ; *env != NULL; env++){
263
free(*env);
264
}
265
free(plugin_list->environ);
266
free(plugin_list);
267
}
284
static void free_plugin_list(void){
285
while(plugin_list != NULL){
286
free_plugin(plugin_list);
287
}
268
288
}
269
289
270
290
int main(int argc, char *argv[]){
271
const char *plugindir = "/lib/mandos/plugins.d";
272
const char *argfile = ARGFILE;
291
char *plugindir = NULL;
292
char *argfile = NULL;
273
293
FILE *conffp;
274
294
size_t d_name_len;
275
295
DIR *dir = NULL;
298
318
ret = sigaction(SIGCHLD, &sigchld_action, &old_sigchld_action);
299
319
if(ret == -1){
300
320
perror("sigaction");
301
exitstatus = EXIT_FAILURE;
321
exitstatus = EXIT_FAILURE;
302
322
goto fallback;
303
323
}
304
324
322
342
{ .name = "plugin-dir", .key = 128,
323
343
.arg = "DIRECTORY",
324
344
.doc = "Specify a different plugin directory", .group = 2 },
325
{ .name = "userid", .key = 129,
326
.arg = "ID", .flags = 0,
327
.doc = "User ID the plugins will run as", .group = 2 },
328
{ .name = "groupid", .key = 130,
329
.arg = "ID", .flags = 0,
330
.doc = "Group ID the plugins will run as", .group = 2 },
331
{ .name = "debug", .key = 131,
332
.doc = "Debug mode", .group = 3 },
345
{ .name = "config-file", .key = 129,
346
.arg = "FILE",
347
.doc = "Specify a different configuration file", .group = 2 },
348
{ .name = "userid", .key = 130,
349
.arg = "ID", .flags = 0,
350
.doc = "User ID the plugins will run as", .group = 3 },
351
{ .name = "groupid", .key = 131,
352
.arg = "ID", .flags = 0,
353
.doc = "Group ID the plugins will run as", .group = 3 },
354
{ .name = "debug", .key = 132,
355
.doc = "Debug mode", .group = 4 },
333
356
{ .name = NULL }
334
357
};
335
358
336
error_t parse_opt (int key, char *arg, struct argp_state *state) {
359
error_t parse_opt (int key, char *arg, __attribute__((unused))
360
struct argp_state *state) {
337
361
/* Get the INPUT argument from `argp_parse', which we know is a
338
362
pointer to our plugin list pointer. */
339
plugin **plugins = state->input;
340
363
switch (key) {
341
case 'g':
364
case 'g': /* --global-options */
342
365
if (arg != NULL){
343
366
char *p;
344
367
while((p = strsep(&arg, ",")) != NULL){
345
368
if(p[0] == '\0'){
346
369
continue;
347
370
}
348
if(not add_argument(getplugin(NULL, plugins), p)){
371
if(not add_argument(getplugin(NULL), p)){
349
372
perror("add_argument");
350
373
return ARGP_ERR_UNKNOWN;
351
374
}
352
375
}
353
376
}
354
377
break;
355
case 'e':
378
case 'e': /* --global-envs */
356
379
if(arg == NULL){
357
380
break;
358
381
}
361
384
if(envdef == NULL){
362
385
break;
363
386
}
364
if(not add_environment(getplugin(NULL, plugins), envdef)){
387
if(not add_environment(getplugin(NULL), envdef)){
365
388
perror("add_environment");
366
389
}
367
390
}
368
391
break;
369
case 'o':
392
case 'o': /* --options-for */
370
393
if (arg != NULL){
371
394
char *p_name = strsep(&arg, ":");
372
395
if(p_name[0] == '\0'){
382
405
if(p[0] == '\0'){
383
406
continue;
384
407
}
385
if(not add_argument(getplugin(p_name, plugins), p)){
408
if(not add_argument(getplugin(p_name), p)){
386
409
perror("add_argument");
387
410
return ARGP_ERR_UNKNOWN;
388
411
}
390
413
}
391
414
}
392
415
break;
393
case 'f':
416
case 'f': /* --envs-for */
394
417
if(arg == NULL){
395
418
break;
396
419
}
404
427
break;
405
428
}
406
429
envdef++;
407
if(not add_environment(getplugin(p_name, plugins), envdef)){
430
if(not add_environment(getplugin(p_name), envdef)){
408
431
perror("add_environment");
409
432
}
410
433
}
411
434
break;
412
case 'd':
435
case 'd': /* --disable */
413
436
if (arg != NULL){
414
plugin *p = getplugin(arg, plugins);
437
plugin *p = getplugin(arg);
415
438
if(p == NULL){
416
439
return ARGP_ERR_UNKNOWN;
417
440
}
418
441
p->disabled = true;
419
442
}
420
443
break;
421
case 128:
422
plugindir = arg;
444
case 128: /* --plugin-dir */
445
plugindir = strdup(arg);
446
if(plugindir == NULL){
447
perror("strdup");
448
}
423
449
break;
424
case 129:
450
case 129: /* --config-file */
451
argfile = strdup(arg);
452
if(argfile == NULL){
453
perror("strdup");
454
}
455
break;
456
case 130: /* --userid */
425
457
uid = (uid_t)strtol(arg, NULL, 10);
426
458
break;
427
case 130:
459
case 131: /* --groupid */
428
460
gid = (gid_t)strtol(arg, NULL, 10);
429
461
break;
430
case 131:
462
case 132: /* --debug */
431
463
debug = true;
432
464
break;
433
465
case ARGP_KEY_ARG:
441
473
return 0;
442
474
}
443
475
444
plugin *plugin_list = NULL;
445
446
476
struct argp argp = { .options = options, .parser = parse_opt,
447
477
.args_doc = "[+PLUS_SEPARATED_OPTIONS]",
448
478
.doc = "Mandos plugin runner -- Run plugins" };
449
479
450
ret = argp_parse (&argp, argc, argv, 0, 0, &plugin_list);
480
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
451
481
if (ret == ARGP_ERR_UNKNOWN){
452
482
fprintf(stderr, "Unknown error while parsing arguments\n");
453
483
exitstatus = EXIT_FAILURE;
454
484
goto fallback;
455
485
}
456
486
457
conffp = fopen(argfile, "r");
487
/* Opens the configfile if aviable */
488
if (argfile == NULL){
489
conffp = fopen(AFILE, "r");
490
} else {
491
conffp = fopen(argfile, "r");
492
}
458
493
if(conffp != NULL){
459
494
char *org_line = NULL;
460
495
char *p, *arg, *new_arg, *line;
463
498
const char whitespace_delims[] = " \r\t\f\v\n";
464
499
const char comment_delim[] = "#";
465
500
501
custom_argc = 1;
502
custom_argv = malloc(sizeof(char*) * 2);
503
if(custom_argv == NULL){
504
perror("malloc");
505
exitstatus = EXIT_FAILURE;
506
goto fallback;
507
}
508
custom_argv[0] = argv[0];
509
custom_argv[1] = NULL;
510
511
/* for each line in the config file, strip whitespace and ignore
512
commented text */
466
513
while(true){
467
514
sret = getline(&org_line, &size, conffp);
468
515
if(sret == -1){
476
523
continue;
477
524
}
478
525
new_arg = strdup(p);
479
custom_argv = add_to_argv(custom_argv, &custom_argc, new_arg);
480
if (custom_argv == NULL){
481
perror("add_to_argv");
482
exitstatus = EXIT_FAILURE;
483
goto fallback;
484
}
526
if(new_arg == NULL){
527
perror("strdup");
528
exitstatus = EXIT_FAILURE;
529
free(org_line);
530
goto fallback;
531
}
532
533
custom_argc += 1;
534
custom_argv = realloc(custom_argv, sizeof(char *)
535
* ((unsigned int) custom_argc + 1));
536
if(custom_argv == NULL){
537
perror("realloc");
538
exitstatus = EXIT_FAILURE;
539
free(org_line);
540
goto fallback;
541
}
542
custom_argv[custom_argc-1] = new_arg;
543
custom_argv[custom_argc] = NULL;
485
544
}
486
545
}
487
546
free(org_line);
494
553
goto fallback;
495
554
}
496
555
}
497
556
/* If there was any arguments from configuration file,
557
pass them to parser as command arguments */
498
558
if(custom_argv != NULL){
499
custom_argv[0] = argv[0];
500
ret = argp_parse (&argp, custom_argc, custom_argv, 0, 0, &plugin_list);
559
ret = argp_parse (&argp, custom_argc, custom_argv, 0, 0, NULL);
501
560
if (ret == ARGP_ERR_UNKNOWN){
502
561
fprintf(stderr, "Unknown error while parsing arguments\n");
503
562
exitstatus = EXIT_FAILURE;
518
577
}
519
578
}
520
579
}
521
580
581
/* Strip permissions down to nobody */
522
582
ret = setuid(uid);
523
583
if (ret == -1){
524
584
perror("setuid");
525
}
526
585
}
527
586
setgid(gid);
528
587
if (ret == -1){
529
588
perror("setgid");
530
589
}
590
591
if (plugindir == NULL){
592
dir = opendir(PDIR);
593
} else {
594
dir = opendir(plugindir);
595
}
531
596
532
dir = opendir(plugindir);
533
597
if(dir == NULL){
534
598
perror("Could not open plugin dir");
535
599
exitstatus = EXIT_FAILURE;
550
614
}
551
615
552
616
FD_ZERO(&rfds_all);
553
617
618
/* Read and execute any executable in the plugin directory*/
554
619
while(true){
555
620
dirst = readdir(dir);
556
621
587
652
break;
588
653
}
589
654
}
590
591
655
if(bad_name){
592
656
continue;
593
657
}
594
595
658
for(const char **suf = bad_suffixes; *suf != NULL; suf++){
596
659
size_t suf_len = strlen(*suf);
597
660
if((d_name_len >= suf_len)
624
687
free(filename);
625
688
continue;
626
689
}
627
690
691
/* Ignore non-executable files */
628
692
if (not S_ISREG(st.st_mode) or (access(filename, X_OK) != 0)){
629
693
if(debug){
630
694
fprintf(stderr, "Ignoring plugin dir entry \"%s\""
633
697
free(filename);
634
698
continue;
635
699
}
636
plugin *p = getplugin(dirst->d_name, &plugin_list);
700
701
plugin *p = getplugin(dirst->d_name);
637
702
if(p == NULL){
638
703
perror("getplugin");
639
704
free(filename);
649
714
}
650
715
{
651
716
/* Add global arguments to argument list for this plugin */
652
plugin *g = getplugin(NULL, &plugin_list);
717
plugin *g = getplugin(NULL);
653
718
if(g != NULL){
654
719
for(char **a = g->argv + 1; *a != NULL; a++){
655
720
if(not add_argument(p, *a)){
680
745
}
681
746
}
682
747
683
int pipefd[2];
748
int pipefd[2];
684
749
ret = pipe(pipefd);
685
750
if (ret == -1){
686
751
perror("pipe");
687
752
exitstatus = EXIT_FAILURE;
688
753
goto fallback;
689
754
}
755
/* Ask OS to automatic close the pipe on exec */
690
756
ret = set_cloexec_flag(pipefd[0]);
691
757
if(ret < 0){
692
758
perror("set_cloexec_flag");
750
816
}
751
817
/* no return */
752
818
}
753
/* parent process */
819
/* Parent process */
820
close(pipefd[1]); /* Close unused write end of pipe */
754
821
free(filename);
755
close(pipefd[1]); /* close unused write end of pipe */
756
process *new_process = malloc(sizeof(process));
757
if (new_process == NULL){
758
perror("malloc");
822
plugin *new_plugin = getplugin(dirst->d_name);
823
if (new_plugin == NULL){
824
perror("getplugin");
759
825
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
760
826
if(ret < 0){
761
perror("sigprocmask");
827
perror("sigprocmask");
762
828
}
763
829
exitstatus = EXIT_FAILURE;
764
830
goto fallback;
765
831
}
766
832
767
*new_process = (struct process){ .pid = pid,
768
.fd = pipefd[0],
769
.next = process_list };
770
// List handling
771
process_list = new_process;
833
new_plugin->pid = pid;
834
new_plugin->fd = pipefd[0];
835
772
836
/* Unblock SIGCHLD so signal handler can be run if this process
773
837
has already completed */
774
838
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
778
842
goto fallback;
779
843
}
780
844
781
FD_SET(new_process->fd, &rfds_all);
845
FD_SET(new_plugin->fd, &rfds_all);
782
846
783
if (maxfd < new_process->fd){
784
maxfd = new_process->fd;
847
if (maxfd < new_plugin->fd){
848
maxfd = new_plugin->fd;
785
849
}
786
850
787
851
}
788
852
789
free_plugin_list(plugin_list);
790
791
853
closedir(dir);
792
854
dir = NULL;
793
794
if (process_list == NULL){
795
fprintf(stderr, "No plugin processes started. Incorrect plugin"
796
" directory?\n");
797
process_list = NULL;
855
856
for(plugin *p = plugin_list; p != NULL; p = p->next){
857
if(p->pid != 0){
858
break;
859
}
860
if(p->next == NULL){
861
fprintf(stderr, "No plugin processes started. Incorrect plugin"
862
" directory?\n");
863
free_plugin_list();
864
}
798
865
}
799
while(process_list){
866
867
/* Main loop while running plugins exist */
868
while(plugin_list){
800
869
fd_set rfds = rfds_all;
801
870
int select_ret = select(maxfd+1, &rfds, NULL, NULL, NULL);
802
871
if (select_ret == -1){
806
875
}
807
876
/* OK, now either a process completed, or something can be read
808
877
from one of them */
809
for(process *proc = process_list; proc ; proc = proc->next){
878
for(plugin *proc = plugin_list; proc != NULL; proc = proc->next){
810
879
/* Is this process completely done? */
811
880
if(proc->eof and proc->completed){
812
881
/* Only accept the plugin output if it exited cleanly */
813
882
if(not WIFEXITED(proc->status)
814
883
or WEXITSTATUS(proc->status) != 0){
815
884
/* Bad exit by plugin */
885
816
886
if(debug){
817
887
if(WIFEXITED(proc->status)){
818
888
fprintf(stderr, "Plugin %u exited with status %d\n",
827
897
(unsigned int) (proc->pid));
828
898
}
829
899
}
900
830
901
/* Remove the plugin */
831
902
FD_CLR(proc->fd, &rfds_all);
903
832
904
/* Block signal while modifying process_list */
833
ret = sigprocmask (SIG_BLOCK, &sigchld_action.sa_mask, NULL);
905
ret = sigprocmask(SIG_BLOCK, &sigchld_action.sa_mask, NULL);
834
906
if(ret < 0){
835
907
perror("sigprocmask");
836
908
exitstatus = EXIT_FAILURE;
837
909
goto fallback;
838
910
}
839
/* Delete this process entry from the list */
840
if(process_list == proc){
841
/* First one - simple */
842
process_list = proc->next;
843
} else {
844
/* Second one or later */
845
for(process *p = process_list; p != NULL; p = p->next){
846
if(p->next == proc){
847
p->next = proc->next;
848
break;
849
}
850
}
851
}
911
free_plugin(proc);
852
912
/* We are done modifying process list, so unblock signal */
853
913
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask,
854
914
NULL);
855
915
if(ret < 0){
856
916
perror("sigprocmask");
857
}
858
free(proc->buffer);
859
free(proc);
860
/* We deleted this process from the list, so we can't go
861
proc->next. Therefore, start over from the beginning of
862
the process list */
863
break;
917
exitstatus = EXIT_FAILURE;
918
goto fallback;
919
}
920
921
if(plugin_list == NULL){
922
break;
923
}
924
continue;
864
925
}
926
865
927
/* This process exited nicely, so print its buffer */
866
928
867
bool bret = print_out_password(proc->buffer, proc->buffer_length);
929
bool bret = print_out_password(proc->buffer,
930
proc->buffer_length);
868
931
if(not bret){
869
932
perror("print_out_password");
870
933
exitstatus = EXIT_FAILURE;
871
934
}
872
935
goto fallback;
873
936
}
937
874
938
/* This process has not completed. Does it have any output? */
875
939
if(proc->eof or not FD_ISSET(proc->fd, &rfds)){
876
940
/* This process had nothing to say at this time */
906
970
907
971
fallback:
908
972
909
if(process_list == NULL or exitstatus != EXIT_SUCCESS){
910
/* Fallback if all plugins failed, none are found or an error occured */
973
if(plugin_list == NULL or exitstatus != EXIT_SUCCESS){
974
/* Fallback if all plugins failed, none are found or an error
975
occured */
911
976
bool bret;
912
977
fprintf(stderr, "Going to fallback mode using getpass(3)\n");
913
978
char *passwordbuffer = getpass("Password: ");
926
991
}
927
992
928
993
if(custom_argv != NULL){
929
for(char **arg = custom_argv; *arg != NULL; arg++){
994
for(char **arg = custom_argv+1; *arg != NULL; arg++){
930
995
free(*arg);
931
996
}
932
997
free(custom_argv);
933
998
}
934
free_plugin_list(plugin_list);
935
999
936
1000
if(dir != NULL){
937
1001
closedir(dir);
938
1002
}
939
1003
940
1004
/* Free the process list and kill the processes */
941
for(process *next; process_list != NULL; process_list = next){
942
next = process_list->next;
943
close(process_list->fd);
944
ret = kill(process_list->pid, SIGTERM);
945
if(ret == -1 and errno != ESRCH){
946
/* set-uid proccesses migth not get closed */
947
perror("kill");
1005
for(plugin *p = plugin_list; p != NULL; p = p->next){
1006
if(p->pid != 0){
1007
close(p->fd);
1008
ret = kill(p->pid, SIGTERM);
1009
if(ret == -1 and errno != ESRCH){
1010
/* Set-uid proccesses might not get closed */
1011
perror("kill");
1012
}
948
1013
}
949
free(process_list->buffer);
950
free(process_list);
951
1014
}
952
1015
953
1016
/* Wait for any remaining child processes to terminate */
957
1020
if(errno != ECHILD){
958
1021
perror("wait");
959
1022
}
1023
1024
free_plugin_list();
1025
1026
free(plugindir);
1027
free(argfile);
960
1028
961
1029
return exitstatus;
962
1030
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0