28
27
#include <stdlib.h> /* malloc(), exit(), EXIT_FAILURE,
29
28
EXIT_SUCCESS, realloc() */
30
29
#include <stdbool.h> /* bool, true, false */
31
#include <stdio.h> /* perror, fileno(), fprintf(),
32
stderr, STDOUT_FILENO */
30
#include <stdio.h> /* perror, popen(), fileno(),
31
fprintf(), stderr, STDOUT_FILENO */
33
32
#include <sys/types.h> /* DIR, opendir(), stat(), struct
34
33
stat, waitpid(), WIFEXITED(),
35
34
WEXITSTATUS(), wait(), pid_t,
48
46
fcntl(), setuid(), setgid(),
49
47
F_GETFD, F_SETFD, FD_CLOEXEC,
50
48
access(), pipe(), fork(), close()
51
dup2(), STDOUT_FILENO, _exit(),
49
dup2, STDOUT_FILENO, _exit(),
52
50
execv(), write(), read(),
54
52
#include <fcntl.h> /* fcntl(), F_GETFD, F_SETFD,
56
#include <string.h> /* strsep, strlen(), asprintf(),
54
#include <string.h> /* strsep, strlen(), asprintf() */
58
55
#include <errno.h> /* errno */
59
56
#include <argp.h> /* struct argp_option, struct
60
57
argp_state, struct argp,
64
61
#include <signal.h> /* struct sigaction, sigemptyset(),
65
62
sigaddset(), sigaction(),
66
63
sigprocmask(), SIG_BLOCK, SIGCHLD,
67
SIG_UNBLOCK, kill(), sig_atomic_t
64
SIG_UNBLOCK, kill() */
69
65
#include <errno.h> /* errno, EBADF */
70
#include <inttypes.h> /* intmax_t, PRIdMAX, strtoimax() */
72
67
#define BUFFER_SIZE 256
74
#define PDIR "/lib/mandos/plugins.d"
75
#define AFILE "/conf/conf.d/mandos/plugin-runner.conf"
77
const char *argp_program_version = "plugin-runner " VERSION;
68
#define ARGFILE "/conf/conf.d/mandos/plugin-runner.conf"
70
const char *argp_program_version = "plugin-runner 1.0";
78
71
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
75
typedef struct process{
82
volatile bool completed;
80
87
typedef struct plugin{
81
88
char *name; /* can be NULL or any plugin name */
88
/* Variables used for running processes*/
95
volatile sig_atomic_t completed;
97
94
struct plugin *next;
100
static plugin *plugin_list = NULL;
102
/* Gets an existing plugin based on name,
103
or if none is found, creates a new one */
104
static plugin *getplugin(char *name){
105
/* Check for exiting plugin with that name */
106
for(plugin *p = plugin_list; p != NULL; p = p->next){
108
or (p->name and name and (strcmp(p->name, name) == 0))){
97
static plugin *getplugin(char *name, plugin **plugin_list){
98
for (plugin *p = *plugin_list; p != NULL; p = p->next){
100
or (p->name and name and (strcmp(p->name, name) == 0))){
112
104
/* Create a new plugin */
113
plugin *new_plugin = NULL;
115
new_plugin = malloc(sizeof(plugin));
116
} while(new_plugin == NULL and errno == EINTR);
117
if(new_plugin == NULL){
105
plugin *new_plugin = malloc(sizeof(plugin));
106
if (new_plugin == NULL){
120
109
char *copy_name = NULL;
121
110
if(name != NULL){
123
copy_name = strdup(name);
124
} while(copy_name == NULL and errno == EINTR);
111
copy_name = strdup(name);
125
112
if(copy_name == NULL){
131
*new_plugin = (plugin){ .name = copy_name,
134
.next = plugin_list };
117
*new_plugin = (plugin) { .name = copy_name,
121
.next = *plugin_list };
137
new_plugin->argv = malloc(sizeof(char *) * 2);
138
} while(new_plugin->argv == NULL and errno == EINTR);
139
if(new_plugin->argv == NULL){
123
new_plugin->argv = malloc(sizeof(char *) * 2);
124
if (new_plugin->argv == NULL){
141
126
free(new_plugin);
144
129
new_plugin->argv[0] = copy_name;
145
130
new_plugin->argv[1] = NULL;
148
new_plugin->environ = malloc(sizeof(char *));
149
} while(new_plugin->environ == NULL and errno == EINTR);
132
new_plugin->environ = malloc(sizeof(char *));
150
133
if(new_plugin->environ == NULL){
152
135
free(new_plugin->argv);
199
176
/* Add to a plugin's environment */
200
static bool add_environment(plugin *p, const char *def, bool replace){
177
static bool add_environment(plugin *p, const char *def){
204
/* namelen = length of name of environment variable */
205
size_t namelen = (size_t)(strchrnul(def, '=') - def);
206
/* Search for this environment variable */
207
for(char **e = p->environ; *e != NULL; e++){
208
if(strncmp(*e, def, namelen + 1) == 0){
209
/* It already exists */
213
new = realloc(*e, strlen(def) + 1);
214
} while(new == NULL and errno == EINTR);
224
181
return add_to_char_array(def, &(p->environ), &(p->envc));
228
186
* Based on the example in the GNU LibC manual chapter 13.13 "File
229
187
* Descriptor Flags".
230
| [[info:libc:Descriptor%20Flags][File Descriptor Flags]] |
188
* *Note File Descriptor Flags:(libc)Descriptor Flags.
232
static int set_cloexec_flag(int fd){
233
int ret = (int)TEMP_FAILURE_RETRY(fcntl(fd, F_GETFD, 0));
190
static int set_cloexec_flag(int fd)
192
int ret = fcntl(fd, F_GETFD, 0);
234
193
/* If reading the flags failed, return error indication now. */
238
197
/* Store modified flag word in the descriptor. */
239
return (int)TEMP_FAILURE_RETRY(fcntl(fd, F_SETFD,
198
return fcntl(fd, F_SETFD, ret | FD_CLOEXEC);
201
process *process_list = NULL;
244
203
/* Mark processes as completed when they exit, and save their exit
246
static void handle_sigchld(__attribute__((unused)) int sig){
247
int old_errno = errno;
205
void handle_sigchld(__attribute__((unused)) int sig){
249
plugin *proc = plugin_list;
207
process *proc = process_list;
251
209
pid_t pid = waitpid(-1, &status, WNOHANG);
291
/* Removes and free a plugin from the plugin list */
292
static void free_plugin(plugin *plugin_node){
294
for(char **arg = plugin_node->argv; *arg != NULL; arg++){
297
free(plugin_node->argv);
298
for(char **env = plugin_node->environ; *env != NULL; env++){
301
free(plugin_node->environ);
302
free(plugin_node->buffer);
304
/* Removes the plugin from the singly-linked list */
305
if(plugin_node == plugin_list){
306
/* First one - simple */
307
plugin_list = plugin_list->next;
309
/* Second one or later */
310
for(plugin *p = plugin_list; p != NULL; p = p->next){
311
if(p->next == plugin_node){
312
p->next = plugin_node->next;
321
static void free_plugin_list(void){
322
while(plugin_list != NULL){
323
free_plugin(plugin_list);
250
static void free_plugin_list(plugin *plugin_list){
251
for(plugin *next; plugin_list != NULL; plugin_list = next){
252
next = plugin_list->next;
253
for(char **arg = plugin_list->argv; *arg != NULL; arg++){
256
free(plugin_list->argv);
257
for(char **env = plugin_list->environ; *env != NULL; env++){
260
free(plugin_list->environ);
327
265
int main(int argc, char *argv[]){
328
char *plugindir = NULL;
329
char *argfile = NULL;
266
const char *plugindir = "/lib/mandos/plugins.d";
267
const char *argfile = ARGFILE;
331
269
size_t d_name_len;
365
302
{ .name = "global-options", .key = 'g',
366
303
.arg = "OPTION[,OPTION[,...]]",
367
304
.doc = "Options passed to all plugins" },
368
{ .name = "global-env", .key = 'G',
305
{ .name = "global-envs", .key = 'e',
369
306
.arg = "VAR=value",
370
307
.doc = "Environment variable passed to all plugins" },
371
308
{ .name = "options-for", .key = 'o',
372
309
.arg = "PLUGIN:OPTION[,OPTION[,...]]",
373
310
.doc = "Options passed only to specified plugin" },
374
{ .name = "env-for", .key = 'E',
311
{ .name = "envs-for", .key = 'f',
375
312
.arg = "PLUGIN:ENV=value",
376
313
.doc = "Environment variable passed to specified plugin" },
377
314
{ .name = "disable", .key = 'd',
379
316
.doc = "Disable a specific plugin", .group = 1 },
380
{ .name = "enable", .key = 'e',
382
.doc = "Enable a specific plugin", .group = 1 },
383
317
{ .name = "plugin-dir", .key = 128,
384
318
.arg = "DIRECTORY",
385
319
.doc = "Specify a different plugin directory", .group = 2 },
386
{ .name = "config-file", .key = 129,
388
.doc = "Specify a different configuration file", .group = 2 },
389
{ .name = "userid", .key = 130,
390
.arg = "ID", .flags = 0,
391
.doc = "User ID the plugins will run as", .group = 3 },
392
{ .name = "groupid", .key = 131,
393
.arg = "ID", .flags = 0,
394
.doc = "Group ID the plugins will run as", .group = 3 },
395
{ .name = "debug", .key = 132,
396
.doc = "Debug mode", .group = 4 },
320
{ .name = "userid", .key = 129,
321
.arg = "ID", .flags = 0,
322
.doc = "User ID the plugins will run as", .group = 2 },
323
{ .name = "groupid", .key = 130,
324
.arg = "ID", .flags = 0,
325
.doc = "Group ID the plugins will run as", .group = 2 },
326
{ .name = "debug", .key = 131,
327
.doc = "Debug mode", .group = 3 },
400
error_t parse_opt(int key, char *arg, __attribute__((unused))
401
struct argp_state *state){
405
case 'g': /* --global-options */
408
while((plugin_option = strsep(&arg, ",")) != NULL){
409
if(plugin_option[0] == '\0'){
331
error_t parse_opt (int key, char *arg, struct argp_state *state) {
332
/* Get the INPUT argument from `argp_parse', which we know is a
333
pointer to our plugin list pointer. */
334
plugin **plugins = state->input;
339
while((p = strsep(&arg, ",")) != NULL){
412
if(not add_argument(getplugin(NULL), plugin_option)){
343
if(not add_argument(getplugin(NULL, plugins), p)){
413
344
perror("add_argument");
414
345
return ARGP_ERR_UNKNOWN;
419
case 'G': /* --global-env */
423
if(not add_environment(getplugin(NULL), arg, true)){
424
perror("add_environment");
355
char *envdef = strdup(arg);
359
if(not add_environment(getplugin(NULL, plugins), envdef)){
360
perror("add_environment");
427
case 'o': /* --options-for */
429
char *plugin_name = strsep(&arg, ":");
430
if(plugin_name[0] == '\0'){
434
while((plugin_option = strsep(&arg, ",")) != NULL){
435
if(not add_argument(getplugin(plugin_name), plugin_option)){
436
perror("add_argument");
437
return ARGP_ERR_UNKNOWN;
366
char *p_name = strsep(&arg, ":");
367
if(p_name[0] == '\0'){
370
char *opt = strsep(&arg, ":");
376
while((p = strsep(&opt, ",")) != NULL){
380
if(not add_argument(getplugin(p_name, plugins), p)){
381
perror("add_argument");
382
return ARGP_ERR_UNKNOWN;
442
case 'E': /* --env-for */
448
394
if(envdef == NULL){
452
if(not add_environment(getplugin(arg), envdef+1, true)){
397
char *p_name = strndup(arg, (size_t) (envdef-arg));
402
if(not add_environment(getplugin(p_name, plugins), envdef)){
453
403
perror("add_environment");
457
case 'd': /* --disable */
459
plugin *p = getplugin(arg);
409
plugin *p = getplugin(arg, plugins);
461
411
return ARGP_ERR_UNKNOWN;
463
413
p->disabled = true;
466
case 'e': /* --enable */
468
plugin *p = getplugin(arg);
470
return ARGP_ERR_UNKNOWN;
475
case 128: /* --plugin-dir */
477
plugindir = strdup(arg);
478
if(plugindir == NULL){
482
case 129: /* --config-file */
483
/* This is already done by parse_opt_config_file() */
485
case 130: /* --userid */
487
tmpmax = strtoimax(arg, &tmp, 10);
488
if(errno != 0 or tmp == arg or *tmp != '\0'
489
or tmpmax != (uid_t)tmpmax){
490
fprintf(stderr, "Bad user ID number: \"%s\", using %"
491
PRIdMAX "\n", arg, (intmax_t)uid);
496
case 131: /* --groupid */
498
tmpmax = strtoimax(arg, &tmp, 10);
499
if(errno != 0 or tmp == arg or *tmp != '\0'
500
or tmpmax != (gid_t)tmpmax){
501
fprintf(stderr, "Bad group ID number: \"%s\", using %"
502
PRIdMAX "\n", arg, (intmax_t)gid);
507
case 132: /* --debug */
420
uid = (uid_t)strtol(arg, NULL, 10);
423
gid = (gid_t)strtol(arg, NULL, 10);
511
* When adding more options before this line, remember to also add a
512
* "case" to the "parse_opt_config_file" function below.
515
/* Cryptsetup always passes an argument, which is an empty
516
string if "none" was specified in /etc/crypttab. So if
517
argument was empty, we ignore it silently. */
519
fprintf(stderr, "Ignoring unknown argument \"%s\"\n", arg);
525
return ARGP_ERR_UNKNOWN;
530
/* This option parser is the same as parse_opt() above, except it
531
ignores everything but the --config-file option. */
532
error_t parse_opt_config_file(int key, char *arg,
533
__attribute__((unused))
534
struct argp_state *state){
536
case 'g': /* --global-options */
537
case 'G': /* --global-env */
538
case 'o': /* --options-for */
539
case 'E': /* --env-for */
540
case 'd': /* --disable */
541
case 'e': /* --enable */
542
case 128: /* --plugin-dir */
544
case 129: /* --config-file */
546
argfile = strdup(arg);
551
case 130: /* --userid */
552
case 131: /* --groupid */
553
case 132: /* --debug */
558
return ARGP_ERR_UNKNOWN;
563
struct argp argp = { .options = options,
564
.parser = parse_opt_config_file,
429
fprintf(stderr, "Ignoring unknown argument \"%s\"\n", arg);
434
return ARGP_ERR_UNKNOWN;
439
plugin *plugin_list = NULL;
441
struct argp argp = { .options = options, .parser = parse_opt,
442
.args_doc = "[+PLUS_SEPARATED_OPTIONS]",
566
443
.doc = "Mandos plugin runner -- Run plugins" };
568
/* Parse using parse_opt_config_file() in order to get the custom
569
config file location, if any. */
570
ret = argp_parse(&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
571
if(ret == ARGP_ERR_UNKNOWN){
445
ret = argp_parse (&argp, argc, argv, 0, 0, &plugin_list);
446
if (ret == ARGP_ERR_UNKNOWN){
572
447
fprintf(stderr, "Unknown error while parsing arguments\n");
573
448
exitstatus = EXIT_FAILURE;
577
/* Reset to the normal argument parser */
578
argp.parser = parse_opt;
580
/* Open the configfile if available */
582
conffp = fopen(AFILE, "r");
584
conffp = fopen(argfile, "r");
452
conffp = fopen(argfile, "r");
586
453
if(conffp != NULL){
587
454
char *org_line = NULL;
588
455
char *p, *arg, *new_arg, *line;
590
458
const char whitespace_delims[] = " \r\t\f\v\n";
591
459
const char comment_delim[] = "#";
594
462
custom_argv = malloc(sizeof(char*) * 2);
595
463
if(custom_argv == NULL){
634
494
custom_argv[custom_argc-1] = new_arg;
635
custom_argv[custom_argc] = NULL;
495
custom_argv[custom_argc] = NULL;
639
ret = fclose(conffp);
640
} while(ret == EOF and errno == EINTR);
643
exitstatus = EXIT_FAILURE;
648
500
/* Check for harmful errors and go to fallback. Other errors might
649
501
not affect opening plugins */
650
if(errno == EMFILE or errno == ENFILE or errno == ENOMEM){
502
if (errno == EMFILE or errno == ENFILE or errno == ENOMEM){
652
504
exitstatus = EXIT_FAILURE;
656
/* If there was any arguments from configuration file,
657
pass them to parser as command arguments */
658
509
if(custom_argv != NULL){
659
ret = argp_parse(&argp, custom_argc, custom_argv, ARGP_IN_ORDER,
661
if(ret == ARGP_ERR_UNKNOWN){
510
ret = argp_parse (&argp, custom_argc, custom_argv, 0, 0, &plugin_list);
511
if (ret == ARGP_ERR_UNKNOWN){
662
512
fprintf(stderr, "Unknown error while parsing arguments\n");
663
513
exitstatus = EXIT_FAILURE;
668
/* Parse actual command line arguments, to let them override the
670
ret = argp_parse(&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
671
if(ret == ARGP_ERR_UNKNOWN){
672
fprintf(stderr, "Unknown error while parsing arguments\n");
673
exitstatus = EXIT_FAILURE;
678
519
for(plugin *p = plugin_list; p != NULL; p=p->next){
679
520
fprintf(stderr, "Plugin: %s has %d arguments\n",
791
if(plugindir == NULL){
792
ret = (int)TEMP_FAILURE_RETRY(asprintf(&filename, PDIR "/%s",
795
ret = (int)TEMP_FAILURE_RETRY(asprintf(&filename, "%s/%s",
625
ret = asprintf(&filename, "%s/%s", plugindir, dirst->d_name);
800
627
perror("asprintf");
804
ret = (int)TEMP_FAILURE_RETRY(stat(filename, &st));
631
ret = stat(filename, &st);
811
/* Ignore non-executable files */
812
if(not S_ISREG(st.st_mode)
813
or (TEMP_FAILURE_RETRY(access(filename, X_OK)) != 0)){
638
if (not S_ISREG(st.st_mode) or (access(filename, X_OK) != 0)){
815
640
fprintf(stderr, "Ignoring plugin dir entry \"%s\""
816
641
" with bad type or mode\n", filename);
941
TEMP_FAILURE_RETRY(close(pipefd[1])); /* Close unused write end of
944
plugin *new_plugin = getplugin(dirst->d_name);
945
if(new_plugin == NULL){
947
ret = (int)(TEMP_FAILURE_RETRY
948
(sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask,
765
close(pipefd[1]); /* close unused write end of pipe */
766
process *new_process = malloc(sizeof(process));
767
if (new_process == NULL){
769
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
951
perror("sigprocmask");
771
perror("sigprocmask");
953
773
exitstatus = EXIT_FAILURE;
957
new_plugin->pid = pid;
958
new_plugin->fd = pipefd[0];
777
*new_process = (struct process){ .pid = pid,
779
.next = process_list };
781
process_list = new_process;
960
782
/* Unblock SIGCHLD so signal handler can be run if this process
961
783
has already completed */
962
ret = (int)TEMP_FAILURE_RETRY(sigprocmask(SIG_UNBLOCK,
963
&sigchld_action.sa_mask,
784
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
966
786
perror("sigprocmask");
967
787
exitstatus = EXIT_FAILURE;
971
FD_SET(new_plugin->fd, &rfds_all);
791
FD_SET(new_process->fd, &rfds_all);
973
if(maxfd < new_plugin->fd){
974
maxfd = new_plugin->fd;
793
if (maxfd < new_process->fd){
794
maxfd = new_process->fd;
978
TEMP_FAILURE_RETRY(closedir(dir));
799
free_plugin_list(plugin_list);
980
free_plugin(getplugin(NULL));
982
for(plugin *p = plugin_list; p != NULL; p = p->next){
987
fprintf(stderr, "No plugin processes started. Incorrect plugin"
805
if (process_list == NULL){
806
fprintf(stderr, "No plugin processes started. Incorrect plugin"
993
/* Main loop while running plugins exist */
995
811
fd_set rfds = rfds_all;
996
812
int select_ret = select(maxfd+1, &rfds, NULL, NULL, NULL);
997
if(select_ret == -1 and errno != EINTR){
813
if (select_ret == -1){
998
814
perror("select");
999
815
exitstatus = EXIT_FAILURE;
1002
818
/* OK, now either a process completed, or something can be read
1003
819
from one of them */
1004
for(plugin *proc = plugin_list; proc != NULL;){
820
for(process *proc = process_list; proc ; proc = proc->next){
1005
821
/* Is this process completely done? */
1006
if(proc->completed and proc->eof){
822
if(proc->eof and proc->completed){
1007
823
/* Only accept the plugin output if it exited cleanly */
1008
824
if(not WIFEXITED(proc->status)
1009
825
or WEXITSTATUS(proc->status) != 0){
1010
826
/* Bad exit by plugin */
1013
828
if(WIFEXITED(proc->status)){
1014
fprintf(stderr, "Plugin %s [%" PRIdMAX "] exited with"
1015
" status %d\n", proc->name,
1016
(intmax_t) (proc->pid),
829
fprintf(stderr, "Plugin %u exited with status %d\n",
830
(unsigned int) (proc->pid),
1017
831
WEXITSTATUS(proc->status));
1018
} else if(WIFSIGNALED(proc->status)){
1019
fprintf(stderr, "Plugin %s [%" PRIdMAX "] killed by"
1020
" signal %d: %s\n", proc->name,
1021
(intmax_t) (proc->pid),
1022
WTERMSIG(proc->status),
1023
strsignal(WTERMSIG(proc->status)));
832
} else if(WIFSIGNALED(proc->status)) {
833
fprintf(stderr, "Plugin %u killed by signal %d\n",
834
(unsigned int) (proc->pid),
835
WTERMSIG(proc->status));
1024
836
} else if(WCOREDUMP(proc->status)){
1025
fprintf(stderr, "Plugin %s [%" PRIdMAX "] dumped"
1026
" core\n", proc->name, (intmax_t) (proc->pid));
837
fprintf(stderr, "Plugin %d dumped core\n",
838
(unsigned int) (proc->pid));
1030
841
/* Remove the plugin */
1031
842
FD_CLR(proc->fd, &rfds_all);
1033
843
/* Block signal while modifying process_list */
1034
ret = (int)TEMP_FAILURE_RETRY(sigprocmask
1036
&sigchld_action.sa_mask,
844
ret = sigprocmask(SIG_BLOCK, &sigchld_action.sa_mask, NULL);
1039
846
perror("sigprocmask");
1040
847
exitstatus = EXIT_FAILURE;
1044
plugin *next_plugin = proc->next;
850
/* Delete this process entry from the list */
851
if(process_list == proc){
852
/* First one - simple */
853
process_list = proc->next;
855
/* Second one or later */
856
for(process *p = process_list; p != NULL; p = p->next){
858
p->next = proc->next;
1048
863
/* We are done modifying process list, so unblock signal */
1049
ret = (int)(TEMP_FAILURE_RETRY
1050
(sigprocmask(SIG_UNBLOCK,
1051
&sigchld_action.sa_mask, NULL)));
864
ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask,
1053
867
perror("sigprocmask");
1054
exitstatus = EXIT_FAILURE;
1058
if(plugin_list == NULL){
871
/* We deleted this process from the list, so we can't go
872
proc->next. Therefore, start over from the beginning of
1065
876
/* This process exited nicely, so print its buffer */
1067
878
bool bret = print_out_password(proc->buffer,
1068
879
proc->buffer_length);
1091
900
proc->buffer_size += BUFFER_SIZE;
1093
902
/* Read from the process */
1094
sret = TEMP_FAILURE_RETRY(read(proc->fd,
1096
+ proc->buffer_length,
903
ret = read(proc->fd, proc->buffer + proc->buffer_length,
1099
906
/* Read error from this process; ignore the error */
1105
911
proc->eof = true;
1107
proc->buffer_length += (size_t) sret;
913
proc->buffer_length += (size_t) ret;
1115
if(plugin_list == NULL or exitstatus != EXIT_SUCCESS){
921
if(process_list == NULL or exitstatus != EXIT_SUCCESS){
1116
922
/* Fallback if all plugins failed, none are found or an error
1119
925
fprintf(stderr, "Going to fallback mode using getpass(3)\n");
1120
926
char *passwordbuffer = getpass("Password: ");
1121
size_t len = strlen(passwordbuffer);
1122
/* Strip trailing newline */
1123
if(len > 0 and passwordbuffer[len-1] == '\n'){
1124
passwordbuffer[len-1] = '\0'; /* not strictly necessary */
1127
bret = print_out_password(passwordbuffer, len);
927
bret = print_out_password(passwordbuffer, strlen(passwordbuffer));
1129
929
perror("print_out_password");
1130
930
exitstatus = EXIT_FAILURE;