To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to plugins.d/plymouth.c
- browse files at revision 24.1.157
- compare with another revision
- download diff
- download tarball
- view history from revision 24.1.157
- Committer: Björn Påhlsson
- Date: 2010-09-07 18:48:56 UTC
- mto: (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 421.
- Revision ID: belorn@fukt.bsnet.se-20100907184856-waz6cvxbm7ranha2
added the actually plugin file for plymouth
- files added:
- initramfs-tools-hook-conf
- files removed:
- DBUS-API
- debian/source
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
plugins.d/plymouth.c
1
/* -*- coding: utf-8 -*- */
2
/*
3
* Plymouth - Read a password from Plymouth and output it
4
*
5
* Copyright © 2010-2022 Teddy Hogeborn
6
* Copyright © 2010-2022 Björn Påhlsson
7
*
8
* This file is part of Mandos.
9
*
10
* Mandos is free software: you can redistribute it and/or modify it
11
* under the terms of the GNU General Public License as published by
12
* the Free Software Foundation, either version 3 of the License, or
13
* (at your option) any later version.
14
*
15
* Mandos is distributed in the hope that it will be useful, but
16
* WITHOUT ANY WARRANTY; without even the implied warranty of
17
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18
* General Public License for more details.
19
*
20
* You should have received a copy of the GNU General Public License
21
* along with Mandos. If not, see <http://www.gnu.org/licenses/>.
22
*
23
* Contact the authors at <mandos@recompile.se>.
24
*/
25
26
#define _GNU_SOURCE /* program_invocation_short_name,
27
vasprintf(), asprintf(),
28
TEMP_FAILURE_RETRY() */
29
#include <sys/types.h> /* sig_atomic_t, pid_t, setuid(),
30
geteuid(), setsid() */
31
#include <argp.h> /* argp_program_version,
32
argp_program_bug_address,
33
struct argp_option,
34
struct argp_state,
35
ARGP_ERR_UNKNOWN, struct argp,
36
argp_parse(), ARGP_IN_ORDER */
37
#include <stddef.h> /* NULL, size_t */
1
#define _GNU_SOURCE /* asprintf(), TEMP_FAILURE_RETRY() */
2
#include <signal.h> /* sig_atomic_t, struct sigaction,
3
sigemptyset(), sigaddset(), SIGINT,
4
SIGHUP, SIGTERM, sigaction(),
5
kill(), SIG_IGN */
38
6
#include <stdbool.h> /* bool, false, true */
39
#include <stdio.h> /* FILE, fprintf(), vfprintf(),
40
vasprintf(), stderr, asprintf(),
41
fopen(), fscanf(), fclose(),
42
sscanf() */
43
#include <stdarg.h> /* va_list, va_start(), vfprintf() */
44
#include <errno.h> /* program_invocation_short_name,
45
errno, ENOMEM, EINTR, ENOENT,
46
error_t, EINVAL */
47
#include <string.h> /* strerror(), strdup(), memcmp() */
7
#include <fcntl.h> /* open(), O_RDONLY */
8
#include <iso646.h> /* and, or, not*/
9
#include <sys/types.h> /* size_t, ssize_t, pid_t, struct dirent,
10
waitpid() */
11
#include <sys/wait.h> /* waitpid() */
12
#include <stddef.h> /* NULL */
13
#include <string.h> /* strchr(), memcmp() */
14
#include <stdio.h> /* asprintf(), perror(), fopen(), fscanf() */
15
#include <unistd.h> /* close(), readlink(), read(), fork()
16
setsid(), chdir(), dup2()
17
STDERR_FILENO, execv(), access() */
18
#include <stdlib.h> /* free(), EXIT_FAILURE, realloc(),
19
EXIT_SUCCESS, malloc(), _exit(),
20
getenv() */
21
#include <dirent.h> /* scandir(), alphasort() */
22
#include <inttypes.h> /* intmax_t, strtoumax(), SCNuMAX */
23
#include <sys/stat.h> /* struct stat, lstat() */
24
#include <sysexits.h> /* EX_OSERR */
48
25
#include <error.h> /* error() */
49
#include <stdlib.h> /* free(), getenv(), malloc(),
50
reallocarray(), realloc(),
51
EXIT_FAILURE, EXIT_SUCCESS */
52
#include <unistd.h> /* TEMP_FAILURE_RETRY(), setuid(),
53
geteuid(), setsid(), chdir(),
54
dup2(), STDERR_FILENO,
55
STDOUT_FILENO, fork(), _exit(),
56
execv(), ssize_t, readlink(),
57
close(), read(), access(), X_OK */
58
#include <signal.h> /* kill(), SIGTERM, struct sigaction,
59
sigemptyset(), SIGINT, SIGHUP,
60
sigaddset(), SIG_IGN */
61
#include <sys/wait.h> /* waitpid(), WIFEXITED(),
62
WEXITSTATUS(), WIFSIGNALED(),
63
WTERMSIG() */
64
#include <iso646.h> /* not, and, or */
65
#include <sysexits.h> /* EX_OSERR, EX_USAGE,
66
EX_UNAVAILABLE */
67
#include <stdint.h> /* SIZE_MAX */
68
#include <dirent.h> /* struct dirent, scandir(),
69
alphasort() */
70
#include <inttypes.h> /* uintmax_t, strtoumax(), SCNuMAX,
71
PRIuMAX */
72
#include <sys/stat.h> /* struct stat, lstat(), S_ISLNK() */
73
#include <fcntl.h> /* open(), O_RDONLY */
74
#include <argz.h> /* argz_count(), argz_extract() */
26
#include <errno.h> /* TEMP_FAILURE_RETRY */
27
#include <stdarg.h>
75
28
76
29
sig_atomic_t interrupted_by_signal = 0;
77
const char *argp_program_version = "plymouth " VERSION;
78
const char *argp_program_bug_address = "<mandos@recompile.se>";
79
80
/* Used by Ubuntu 11.04 (Natty Narwahl) */
81
const char plymouth_old_old_pid[] = "/dev/.initramfs/plymouth.pid";
82
/* Used by Ubuntu 11.10 (Oneiric Ocelot) */
83
const char plymouth_old_pid[] = "/run/initramfs/plymouth.pid";
84
/* Used by Debian 9 (stretch) */
85
const char plymouth_pid[] = "/run/plymouth/pid";
86
30
const char plymouth_pid[] = "/dev/.initramfs/plymouth.pid";
87
31
const char plymouth_path[] = "/bin/plymouth";
88
32
const char plymouthd_path[] = "/sbin/plymouthd";
89
const char *plymouthd_default_argv[] = {"/sbin/plymouthd",
90
"--mode=boot",
33
const char *plymouthd_default_argv[] = {"/sbin/plymouthd", "--mode=boot",
91
34
"--attach-to-session",
35
"--pid-file=/dev/.initramfs/plymouth.pid",
92
36
NULL };
93
bool debug = false;
94
37
95
38
static void termination_handler(__attribute__((unused))int signum){
96
39
if(interrupted_by_signal){
99
42
interrupted_by_signal = 1;
100
43
}
101
44
102
__attribute__((format (gnu_printf, 2, 3), nonnull))
103
int fprintf_plus(FILE *stream, const char *format, ...){
104
va_list ap;
105
va_start (ap, format);
106
fprintf(stream, "Mandos plugin %s: ", program_invocation_short_name);
107
return vfprintf(stream, format, ap);
108
}
109
110
/* Function to use when printing errors */
111
__attribute__((format (gnu_printf, 3, 4)))
112
void error_plus(int status, int errnum, const char *formatstring,
113
...){
114
va_list ap;
115
char *text;
116
int ret;
117
118
va_start(ap, formatstring);
119
ret = vasprintf(&text, formatstring, ap);
120
if(ret == -1){
121
fprintf(stderr, "Mandos plugin %s: ",
122
program_invocation_short_name);
123
vfprintf(stderr, formatstring, ap);
124
fprintf(stderr, ": ");
125
fprintf(stderr, "%s\n", strerror(errnum));
126
error(status, errno, "vasprintf while printing error");
127
return;
128
}
129
fprintf(stderr, "Mandos plugin ");
130
error(status, errnum, "%s", text);
131
free(text);
132
}
133
134
45
/* Create prompt string */
135
46
char *makeprompt(void){
136
47
int ret = 0;
137
48
char *prompt;
138
49
const char *const cryptsource = getenv("cryptsource");
139
50
const char *const crypttarget = getenv("crypttarget");
140
const char prompt_start[] = "Unlocking the disk";
141
const char prompt_end[] = "Enter passphrase";
51
const char prompt_start[] = "Enter passphrase to unlock the disk";
142
52
143
53
if(cryptsource == NULL){
144
54
if(crypttarget == NULL){
145
ret = asprintf(&prompt, "%s\n%s", prompt_start, prompt_end);
55
ret = asprintf(&prompt, "%s: ", prompt_start);
146
56
} else {
147
ret = asprintf(&prompt, "%s (%s)\n%s", prompt_start,
148
crypttarget, prompt_end);
57
ret = asprintf(&prompt, "%s (%s): ", prompt_start,
58
crypttarget);
149
59
}
150
60
} else {
151
61
if(crypttarget == NULL){
152
ret = asprintf(&prompt, "%s %s\n%s", prompt_start, cryptsource,
153
prompt_end);
62
ret = asprintf(&prompt, "%s %s: ", prompt_start, cryptsource);
154
63
} else {
155
ret = asprintf(&prompt, "%s %s (%s)\n%s", prompt_start,
156
cryptsource, crypttarget, prompt_end);
64
ret = asprintf(&prompt, "%s %s (%s): ", prompt_start,
65
cryptsource, crypttarget);
157
66
}
158
67
}
159
68
if(ret == -1){
170
79
bool become_a_daemon(void){
171
80
int ret = setuid(geteuid());
172
81
if(ret == -1){
173
error_plus(0, errno, "setuid");
82
error(0, errno, "setuid");
174
83
}
175
84
176
85
setsid();
177
86
ret = chdir("/");
178
87
if(ret == -1){
179
error_plus(0, errno, "chdir");
88
error(0, errno, "chdir");
180
89
return false;
181
90
}
182
91
ret = dup2(STDERR_FILENO, STDOUT_FILENO); /* replace our stdout */
183
92
if(ret == -1){
184
error_plus(0, errno, "dup2");
93
error(0, errno, "dup2");
185
94
return false;
186
95
}
187
96
return true;
188
97
}
189
98
190
__attribute__((nonnull (2, 3)))
191
99
bool exec_and_wait(pid_t *pid_return, const char *path,
192
const char * const * const argv, bool interruptable,
100
const char **argv, bool interruptable,
193
101
bool daemonize){
194
102
int status;
195
103
int ret;
196
104
pid_t pid;
197
if(debug){
198
for(const char * const *arg = argv; *arg != NULL; arg++){
199
fprintf_plus(stderr, "exec_and_wait arg: %s\n", *arg);
200
}
201
fprintf_plus(stderr, "exec_and_wait end of args\n");
202
}
203
204
105
pid = fork();
205
106
if(pid == -1){
206
error_plus(0, errno, "fork");
107
error(0, errno, "fork");
207
108
return false;
208
109
}
209
110
if(pid == 0){
213
114
_exit(EX_OSERR);
214
115
}
215
116
}
216
217
char **new_argv = malloc(sizeof(const char *));
218
if(new_argv == NULL){
219
error_plus(0, errno, "malloc");
220
_exit(EX_OSERR);
221
}
222
char **tmp;
117
118
char **new_argv = NULL;
119
char *tmp;
223
120
int i = 0;
224
for (; argv[i] != NULL; i++){
225
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 26)
226
tmp = reallocarray(new_argv, ((size_t)i + 2),
227
sizeof(const char *));
228
#else
229
if(((size_t)i + 2) > (SIZE_MAX / sizeof(const char *))){
230
/* overflow */
231
tmp = NULL;
232
errno = ENOMEM;
233
} else {
234
tmp = realloc(new_argv, ((size_t)i + 2) * sizeof(const char *));
235
}
236
#endif
237
if(tmp == NULL){
238
error_plus(0, errno, "reallocarray");
121
for (; argv[i]!=(char *)NULL; i++){
122
tmp = realloc(new_argv, sizeof(const char *) * ((size_t)i + 1));
123
if (tmp == NULL){
124
error(0, errno, "realloc");
239
125
free(new_argv);
240
_exit(EX_OSERR);
126
_exit(EXIT_FAILURE);
241
127
}
242
new_argv = tmp;
128
new_argv = (char **)tmp;
243
129
new_argv[i] = strdup(argv[i]);
244
130
}
245
new_argv[i] = NULL;
131
new_argv[i] = (char *) NULL;
246
132
247
133
execv(path, (char *const *)new_argv);
248
error_plus(0, errno, "execv");
134
error(0, errno, "execv");
249
135
_exit(EXIT_FAILURE);
250
136
}
251
137
if(pid_return != NULL){
257
143
and ((not interrupted_by_signal)
258
144
or (not interruptable)));
259
145
if(interrupted_by_signal and interruptable){
260
if(debug){
261
fprintf_plus(stderr, "Interrupted by signal\n");
262
}
263
146
return false;
264
147
}
265
148
if(ret == -1){
266
error_plus(0, errno, "waitpid");
149
error(0, errno, "waitpid");
267
150
return false;
268
151
}
269
if(debug){
270
if(WIFEXITED(status)){
271
fprintf_plus(stderr, "exec_and_wait exited: %d\n",
272
WEXITSTATUS(status));
273
} else if(WIFSIGNALED(status)) {
274
fprintf_plus(stderr, "exec_and_wait signaled: %d\n",
275
WTERMSIG(status));
276
}
277
}
278
if(WIFEXITED(status) and (WEXITSTATUS(status) == 0)){
152
if(WIFEXITED(status) and WEXITSTATUS(status) == 0){
279
153
return true;
280
154
}
281
155
return false;
282
156
}
283
157
284
__attribute__((nonnull))
285
158
int is_plymouth(const struct dirent *proc_entry){
286
159
int ret;
287
160
{
288
uintmax_t proc_id;
161
uintmax_t maxvalue;
289
162
char *tmp;
290
163
errno = 0;
291
proc_id = strtoumax(proc_entry->d_name, &tmp, 10);
164
maxvalue = strtoumax(proc_entry->d_name, &tmp, 10);
292
165
293
if(errno != 0 or *tmp != '\0'
294
or proc_id != (uintmax_t)((pid_t)proc_id)){
166
if(errno != 0 or *tmp != '\0' or maxvalue != (uintmax_t)((pid_t)maxvalue)){
295
167
return 0;
296
168
}
297
169
}
298
char exe_target[sizeof(plymouthd_path)];
170
char exe_target[sizeof(plymouth_path)];
299
171
char *exe_link;
300
172
ret = asprintf(&exe_link, "/proc/%s/exe", proc_entry->d_name);
301
173
if(ret == -1){
302
error_plus(0, errno, "asprintf");
174
error(0, errno, "asprintf");
303
175
return 0;
304
176
}
305
177
306
178
struct stat exe_stat;
307
179
ret = lstat(exe_link, &exe_stat);
308
180
if(ret == -1){
309
181
free(exe_link);
310
182
if(errno != ENOENT){
311
error_plus(0, errno, "lstat");
183
error(0, errno, "lstat");
312
184
}
313
185
return 0;
314
186
}
319
191
free(exe_link);
320
192
return 0;
321
193
}
322
194
323
195
ssize_t sret = readlink(exe_link, exe_target, sizeof(exe_target));
324
196
free(exe_link);
325
if((sret != (ssize_t)sizeof(plymouthd_path)-1) or
326
(memcmp(plymouthd_path, exe_target,
327
sizeof(plymouthd_path)-1) != 0)){
197
if((sret != (ssize_t)sizeof(plymouth_path)-1) or
198
(memcmp(plymouth_path, exe_target,
199
sizeof(plymouth_path)-1) != 0)){
328
200
return 0;
329
201
}
330
202
return 1;
332
204
333
205
pid_t get_pid(void){
334
206
int ret;
335
uintmax_t proc_id = 0;
336
207
FILE *pidfile = fopen(plymouth_pid, "r");
337
/* Try the new pid file location */
208
uintmax_t maxvalue = 0;
338
209
if(pidfile != NULL){
339
ret = fscanf(pidfile, "%" SCNuMAX, &proc_id);
210
ret = fscanf(pidfile, "%" SCNuMAX, &maxvalue);
340
211
if(ret != 1){
341
proc_id = 0;
212
maxvalue = 0;
342
213
}
343
214
fclose(pidfile);
344
215
}
345
/* Try the old pid file location */
346
if(proc_id == 0){
347
pidfile = fopen(plymouth_old_pid, "r");
348
if(pidfile != NULL){
349
ret = fscanf(pidfile, "%" SCNuMAX, &proc_id);
350
if(ret != 1){
351
proc_id = 0;
352
}
353
fclose(pidfile);
354
}
355
}
356
/* Try the old old pid file location */
357
if(proc_id == 0){
358
pidfile = fopen(plymouth_old_old_pid, "r");
359
if(pidfile != NULL){
360
ret = fscanf(pidfile, "%" SCNuMAX, &proc_id);
361
if(ret != 1){
362
proc_id = 0;
363
}
364
fclose(pidfile);
365
}
366
}
367
/* Look for a plymouth process */
368
if(proc_id == 0){
369
struct dirent **direntries = NULL;
216
if(maxvalue == 0){
217
struct dirent **direntries;
370
218
ret = scandir("/proc", &direntries, is_plymouth, alphasort);
371
if(ret == -1){
372
error_plus(0, errno, "scandir");
373
}
374
if(ret > 0){
375
const int num_entries = ret;
376
for(int i = 0; i < num_entries; i++){
377
if(proc_id == 0){
378
ret = sscanf(direntries[i]->d_name, "%" SCNuMAX, &proc_id);
379
if(ret < 0){
380
error_plus(0, errno, "sscanf");
381
}
382
}
383
free(direntries[i]);
384
}
385
}
386
/* scandir might preallocate for this variable (man page unclear).
387
even if ret == 0, therefore we need to free it. */
388
free(direntries);
219
sscanf(direntries[0]->d_name, "%" SCNuMAX, &maxvalue);
389
220
}
390
221
pid_t pid;
391
pid = (pid_t)proc_id;
392
if((uintmax_t)pid == proc_id){
222
pid = (pid_t)maxvalue;
223
if((uintmax_t)pid == maxvalue){
393
224
return pid;
394
225
}
395
226
396
227
return 0;
397
228
}
398
229
399
char **getargv(pid_t pid){
230
const char **getargv(pid_t pid){
400
231
int cl_fd;
401
232
char *cmdline_filename;
402
233
ssize_t sret;
405
236
ret = asprintf(&cmdline_filename, "/proc/%" PRIuMAX "/cmdline",
406
237
(uintmax_t)pid);
407
238
if(ret == -1){
408
error_plus(0, errno, "asprintf");
239
error(0, errno, "asprintf");
409
240
return NULL;
410
241
}
411
242
413
244
cl_fd = open(cmdline_filename, O_RDONLY);
414
245
free(cmdline_filename);
415
246
if(cl_fd == -1){
416
error_plus(0, errno, "open");
247
error(0, errno, "open");
417
248
return NULL;
418
249
}
419
250
427
258
if(cmdline_len + blocksize > cmdline_allocated){
428
259
tmp = realloc(cmdline, cmdline_allocated + blocksize);
429
260
if(tmp == NULL){
430
error_plus(0, errno, "realloc");
261
error(0, errno, "realloc");
431
262
free(cmdline);
432
263
close(cl_fd);
433
264
return NULL;
440
271
sret = read(cl_fd, cmdline + cmdline_len,
441
272
cmdline_allocated - cmdline_len);
442
273
if(sret == -1){
443
error_plus(0, errno, "read");
274
error(0, errno, "read");
444
275
free(cmdline);
445
276
close(cl_fd);
446
277
return NULL;
449
280
} while(sret != 0);
450
281
ret = close(cl_fd);
451
282
if(ret == -1){
452
error_plus(0, errno, "close");
283
error(0, errno, "close");
453
284
free(cmdline);
454
285
return NULL;
455
286
}
456
287
457
288
/* we got cmdline and cmdline_len, ignore rest... */
458
char **argv = malloc((argz_count(cmdline, cmdline_len) + 1)
459
* sizeof(char *)); /* Get number of args */
460
if(argv == NULL){
461
error_plus(0, errno, "argv = malloc()");
462
free(cmdline);
463
return NULL;
289
const char **argv = NULL;
290
size_t argv_size = 0;
291
for(char *arg = cmdline; arg-cmdline < (ssize_t)cmdline_len;
292
arg = strchr(arg, '\0')+1){
293
tmp = realloc(argv, ((++argv_size)+1)*sizeof(char *));
294
if(tmp == NULL){
295
error(0, errno, "realloc");
296
free(argv);
297
return NULL;
298
}
299
argv = (const char **)tmp;
300
argv[argv_size-1] = arg;
464
301
}
465
argz_extract(cmdline, cmdline_len, argv); /* Create argv */
302
argv[argv_size] = NULL;
466
303
return argv;
467
304
}
468
305
469
306
int main(__attribute__((unused))int argc,
470
307
__attribute__((unused))char **argv){
471
char *prompt = NULL;
308
char *prompt;
472
309
char *prompt_arg;
473
310
pid_t plymouth_command_pid;
474
311
int ret;
475
312
bool bret;
476
313
477
{
478
struct argp_option options[] = {
479
{ .name = "prompt", .key = 128, .arg = "PROMPT",
480
.doc = "The prompt to show" },
481
{ .name = "debug", .key = 129,
482
.doc = "Debug mode" },
483
{ .name = NULL }
484
};
485
486
__attribute__((nonnull(3)))
487
error_t parse_opt (int key, char *arg, __attribute__((unused))
488
struct argp_state *state){
489
errno = 0;
490
switch (key){
491
case 128: /* --prompt */
492
prompt = arg;
493
if(debug){
494
fprintf_plus(stderr, "Custom prompt \"%s\"\n", prompt);
495
}
496
break;
497
case 129: /* --debug */
498
debug = true;
499
break;
500
default:
501
return ARGP_ERR_UNKNOWN;
502
}
503
return errno;
504
}
505
506
struct argp argp = { .options = options, .parser = parse_opt,
507
.args_doc = "",
508
.doc = "Mandos plymouth -- Read and"
509
" output a password" };
510
ret = argp_parse(&argp, argc, argv, ARGP_IN_ORDER, NULL, NULL);
511
switch(ret){
512
case 0:
513
break;
514
case ENOMEM:
515
default:
516
errno = ret;
517
error_plus(0, errno, "argp_parse");
518
return EX_OSERR;
519
case EINVAL:
520
error_plus(0, errno, "argp_parse");
521
return EX_USAGE;
522
}
523
}
524
525
314
/* test -x /bin/plymouth */
526
315
ret = access(plymouth_path, X_OK);
527
316
if(ret == -1){
528
/* Plymouth is probably not installed. Don't print an error
529
message, just exit. */
530
if(debug){
531
fprintf_plus(stderr, "Plymouth (%s) not found\n",
532
plymouth_path);
533
}
534
exit(EX_UNAVAILABLE);
317
exit(EXIT_FAILURE);
535
318
}
536
319
537
320
{ /* Add signal handlers */
538
321
struct sigaction old_action,
539
322
new_action = { .sa_handler = termination_handler,
540
323
.sa_flags = 0 };
541
324
sigemptyset(&new_action.sa_mask);
542
for(int *sig = (int[]){ SIGINT, SIGHUP, SIGTERM, 0 };
543
*sig != 0; sig++){
325
for(int *sig = (int[]){ SIGINT, SIGHUP, SIGTERM, 0 }; *sig != 0; sig++){
544
326
ret = sigaddset(&new_action.sa_mask, *sig);
545
327
if(ret == -1){
546
error_plus(EX_OSERR, errno, "sigaddset");
328
error(0, errno, "sigaddset");
329
exit(EX_OSERR);
547
330
}
548
331
ret = sigaction(*sig, NULL, &old_action);
549
332
if(ret == -1){
550
error_plus(EX_OSERR, errno, "sigaction");
333
error(0, errno, "sigaction");
334
exit(EX_OSERR);
551
335
}
552
336
if(old_action.sa_handler != SIG_IGN){
553
337
ret = sigaction(*sig, &new_action, NULL);
554
338
if(ret == -1){
555
error_plus(EX_OSERR, errno, "sigaction");
339
error(0, errno, "sigaction");
340
exit(EX_OSERR);
556
341
}
557
342
}
558
343
}
559
344
}
560
345
561
346
/* plymouth --ping */
562
347
bret = exec_and_wait(&plymouth_command_pid, plymouth_path,
563
(const char *[])
564
{ plymouth_path, "--ping", NULL },
348
(const char *[]){ (const char *)plymouth_path, (const char *)"--ping", (const char *)NULL},
565
349
true, false);
566
350
if(not bret){
567
351
if(interrupted_by_signal){
568
352
kill_and_wait(plymouth_command_pid);
569
exit(EXIT_FAILURE);
570
}
571
/* Plymouth is probably not running. Don't print an error
572
message, just exit. */
573
if(debug){
574
fprintf_plus(stderr, "Plymouth not running\n");
575
}
576
exit(EX_UNAVAILABLE);
353
}
354
exit(EXIT_FAILURE);
577
355
}
578
356
579
if(prompt != NULL){
580
ret = asprintf(&prompt_arg, "--prompt=%s", prompt);
581
} else {
582
char *made_prompt = makeprompt();
583
ret = asprintf(&prompt_arg, "--prompt=%s", made_prompt);
584
free(made_prompt);
585
}
357
prompt = makeprompt();
358
ret = asprintf(&prompt_arg, "--prompt=%s", prompt);
359
free(prompt);
586
360
if(ret == -1){
587
error_plus(EX_OSERR, errno, "asprintf");
361
error(0, errno, "asprintf");
362
exit(EXIT_FAILURE);
588
363
}
589
364
590
365
/* plymouth ask-for-password --prompt="$prompt" */
591
if(debug){
592
fprintf_plus(stderr, "Prompting for password via Plymouth\n");
593
}
594
bret = exec_and_wait(&plymouth_command_pid,
595
plymouth_path, (const char *[])
596
{ plymouth_path, "ask-for-password",
597
prompt_arg, NULL },
366
bret = exec_and_wait(&plymouth_command_pid, plymouth_path,
367
(const char *[]){plymouth_path, "ask-for-password", prompt_arg, NULL},
598
368
true, false);
599
369
free(prompt_arg);
370
if(not bret){
371
if(interrupted_by_signal){
372
kill_and_wait(plymouth_command_pid);
373
} else {
374
exit(EXIT_FAILURE);
375
}
376
}
377
600
378
if(bret){
601
379
exit(EXIT_SUCCESS);
602
380
}
603
if(not interrupted_by_signal){
604
/* exec_and_wait failed for some other reason */
605
exit(EXIT_FAILURE);
606
}
607
kill_and_wait(plymouth_command_pid);
608
381
609
char **plymouthd_argv = NULL;
382
const char **plymouthd_argv = NULL;
610
383
pid_t pid = get_pid();
611
384
if(pid == 0){
612
error_plus(0, 0, "plymouthd pid not found");
385
error(0, 0, "plymouthd pid not found");
613
386
} else {
614
387
plymouthd_argv = getargv(pid);
615
388
}
389
if(plymouthd_argv == NULL){
390
plymouthd_argv = plymouthd_default_argv;
391
}
616
392
617
bret = exec_and_wait(NULL, plymouth_path, (const char *[])
618
{ plymouth_path, "quit", NULL },
619
false, false);
620
if(not bret){
621
if(plymouthd_argv != NULL){
622
free(*plymouthd_argv);
623
free(plymouthd_argv);
624
}
625
exit(EXIT_FAILURE);
626
}
627
bret = exec_and_wait(NULL, plymouthd_path,
628
(plymouthd_argv != NULL)
629
? (const char * const *)plymouthd_argv
630
: plymouthd_default_argv,
631
false, true);
632
if(plymouthd_argv != NULL){
633
free(*plymouthd_argv);
634
free(plymouthd_argv);
635
}
636
if(not bret){
637
exit(EXIT_FAILURE);
638
}
639
exec_and_wait(NULL, plymouth_path, (const char *[])
640
{ plymouth_path, "show-splash", NULL },
641
false, false);
393
bret = exec_and_wait(NULL, plymouth_path,
394
(const char *[]){plymouth_path, "quit", NULL}, false, false);
395
if(not bret){
396
exit(EXIT_FAILURE);
397
}
398
bret = exec_and_wait(NULL, plymouthd_path, plymouthd_argv, false, true);
399
if(not bret){
400
exit(EXIT_FAILURE);
401
}
402
exec_and_wait(NULL, plymouth_path,
403
(const char *[]){ plymouth_path, "show-splash", NULL }, false, false);
642
404
exit(EXIT_FAILURE);
643
405
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0