/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk
444 by Teddy Hogeborn
Update copyright year to "2010" wherever appropriate.
1
/*  -*- coding: utf-8 -*- */
2
/*
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
3
 * Plymouth - Read a password from Plymouth and output it
444 by Teddy Hogeborn
Update copyright year to "2010" wherever appropriate.
4
 * 
466 by Teddy Hogeborn
Update copyright year to "2011" wherever appropriate.
5
 * Copyright © 2010-2011 Teddy Hogeborn
6
 * Copyright © 2010-2011 Björn Påhlsson
444 by Teddy Hogeborn
Update copyright year to "2010" wherever appropriate.
7
 * 
8
 * This program is free software: you can redistribute it and/or
9
 * modify it under the terms of the GNU General Public License as
10
 * published by the Free Software Foundation, either version 3 of the
11
 * License, or (at your option) any later version.
12
 * 
13
 * This program is distributed in the hope that it will be useful, but
14
 * WITHOUT ANY WARRANTY; without even the implied warranty of
15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16
 * General Public License for more details.
17
 * 
18
 * You should have received a copy of the GNU General Public License
19
 * along with this program.  If not, see
20
 * <http://www.gnu.org/licenses/>.
21
 * 
22
 * Contact the authors at <mandos@fukt.bsnet.se>.
23
 */
24
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
25
#define _GNU_SOURCE		/* asprintf(), TEMP_FAILURE_RETRY() */
26
#include <signal.h>		/* sig_atomic_t, struct sigaction,
27
				   sigemptyset(), sigaddset(), SIGINT,
28
				   SIGHUP, SIGTERM, sigaction(),
29
				   kill(), SIG_IGN */
30
#include <stdbool.h>		/* bool, false, true */
31
#include <fcntl.h>		/* open(), O_RDONLY */
32
#include <iso646.h>		/* and, or, not*/
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
33
#include <sys/types.h>		/* size_t, ssize_t, pid_t, struct
34
				   dirent, waitpid() */
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
35
#include <sys/wait.h>		/* waitpid() */
36
#include <stddef.h>		/* NULL */
37
#include <string.h>		/* strchr(), memcmp() */
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
38
#include <stdio.h>		/* asprintf(), perror(), fopen(),
485 by Teddy Hogeborn
Merge from Björn.
39
				   fscanf(), vasprintf(), fprintf(),
40
				   vfprintf() */
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
41
#include <unistd.h>		/* close(), readlink(), read(),
42
				   fork(), setsid(), chdir(), dup2(),
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
43
				   STDERR_FILENO, execv(), access() */
44
#include <stdlib.h>		/* free(), EXIT_FAILURE, realloc(),
45
				   EXIT_SUCCESS, malloc(), _exit(),
46
				   getenv() */
47
#include <dirent.h>		/* scandir(), alphasort() */
48
#include <inttypes.h>		/* intmax_t, strtoumax(), SCNuMAX */
49
#include <sys/stat.h>		/* struct stat, lstat() */
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
50
#include <sysexits.h>		/* EX_OSERR, EX_UNAVAILABLE */
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
51
#include <error.h>		/* error() */
52
#include <errno.h>		/* TEMP_FAILURE_RETRY */
431 by teddy at bsnet
* debian/watch: Also watch for "*.tar.xz" files.
53
#include <argz.h>		/* argz_count(), argz_extract() */
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
54
#include <stdarg.h>		/* va_list, va_start(), ... */
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
55
56
sig_atomic_t interrupted_by_signal = 0;
504 by Teddy Hogeborn
* plugins.d/plymouth.c (plymouth_pid): Changed to
57
58
/* Used by Ubuntu 11.04 (Natty Narwahl) */
59
const char plymouth_old_pid[] = "/dev/.initramfs/plymouth.pid";
60
/* Used by Ubuntu 11.10 (Oneiric Ocelot) */
61
const char plymouth_pid[] = "/run/initramfs/plymouth.pid";
62
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
63
const char plymouth_path[] = "/bin/plymouth";
64
const char plymouthd_path[] = "/sbin/plymouthd";
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
65
const char *plymouthd_default_argv[] = {"/sbin/plymouthd",
66
					"--mode=boot",
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
67
					"--attach-to-session",
68
					NULL };
69
70
static void termination_handler(__attribute__((unused))int signum){
71
  if(interrupted_by_signal){
72
    return;
73
  }
74
  interrupted_by_signal = 1;
75
}
76
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
77
/* Function to use when printing errors */
485 by Teddy Hogeborn
Merge from Björn.
78
void error_plus(int status, int errnum, const char *formatstring,
79
		...){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
80
  va_list ap;
81
  char *text;
82
  int ret;
83
  
84
  va_start(ap, formatstring);
85
  ret = vasprintf(&text, formatstring, ap);
86
  if (ret == -1){
485 by Teddy Hogeborn
Merge from Björn.
87
    fprintf(stderr, "Mandos plugin %s: ",
88
	    program_invocation_short_name);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
89
    vfprintf(stderr, formatstring, ap);
90
    fprintf(stderr, ": ");
91
    fprintf(stderr, "%s\n", strerror(errnum));
92
    error(status, errno, "vasprintf while printing error");
93
    return;
94
  }
95
  fprintf(stderr, "Mandos plugin ");
96
  error(status, errnum, "%s", text);
97
  free(text);
98
}
99
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
100
/* Create prompt string */
101
char *makeprompt(void){
102
  int ret = 0;
103
  char *prompt;
104
  const char *const cryptsource = getenv("cryptsource");
105
  const char *const crypttarget = getenv("crypttarget");
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
106
  const char prompt_start[] = "Unlocking the disk";
107
  const char prompt_end[] = "Enter passphrase";
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
108
  
109
  if(cryptsource == NULL){
110
    if(crypttarget == NULL){
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
111
      ret = asprintf(&prompt, "%s\n%s", prompt_start, prompt_end);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
112
    } else {
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
113
      ret = asprintf(&prompt, "%s (%s)\n%s", prompt_start,
114
		     crypttarget, prompt_end);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
115
    }
116
  } else {
117
    if(crypttarget == NULL){
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
118
      ret = asprintf(&prompt, "%s %s\n%s", prompt_start, cryptsource,
119
		     prompt_end);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
120
    } else {
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
121
      ret = asprintf(&prompt, "%s %s (%s)\n%s", prompt_start,
122
		     cryptsource, crypttarget, prompt_end);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
123
    }
124
  }
125
  if(ret == -1){
126
    return NULL;
127
  }
128
  return prompt;
129
}
130
131
void kill_and_wait(pid_t pid){
132
  TEMP_FAILURE_RETRY(kill(pid, SIGTERM));
133
  TEMP_FAILURE_RETRY(waitpid(pid, NULL, 0));
134
}
135
136
bool become_a_daemon(void){
137
  int ret = setuid(geteuid());
138
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
139
    error_plus(0, errno, "setuid");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
140
  }
141
    
142
  setsid();
143
  ret = chdir("/");
144
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
145
    error_plus(0, errno, "chdir");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
146
    return false;
147
  }
148
  ret = dup2(STDERR_FILENO, STDOUT_FILENO); /* replace our stdout */
149
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
150
    error_plus(0, errno, "dup2");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
151
    return false;
152
  }
153
  return true;
154
}
155
156
bool exec_and_wait(pid_t *pid_return, const char *path,
157
		   const char **argv, bool interruptable,
158
		   bool daemonize){
159
  int status;
160
  int ret;
161
  pid_t pid;
162
  pid = fork();
163
  if(pid == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
164
    error_plus(0, errno, "fork");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
165
    return false;
166
  }
167
  if(pid == 0){
168
    /* Child */
169
    if(daemonize){
170
      if(not become_a_daemon()){
171
	_exit(EX_OSERR);
172
      }
173
    }
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
174
    
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
175
    char **new_argv = NULL;
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
176
    char **tmp;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
177
    int i = 0;
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
178
    for (; argv[i]!=NULL; i++){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
179
      tmp = realloc(new_argv, sizeof(const char *) * ((size_t)i + 1));
180
      if (tmp == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
181
	error_plus(0, errno, "realloc");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
182
	free(new_argv);
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
183
	_exit(EX_OSERR);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
184
      }
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
185
      new_argv = tmp;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
186
      new_argv[i] = strdup(argv[i]);
187
    }
462 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
188
    new_argv[i] = NULL;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
189
    
190
    execv(path, (char *const *)new_argv);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
191
    error_plus(0, errno, "execv");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
192
    _exit(EXIT_FAILURE);
193
  }
194
  if(pid_return != NULL){
195
    *pid_return = pid;
196
  }
197
  do {
198
    ret = waitpid(pid, &status, 0);
199
  } while(ret == -1 and errno == EINTR
200
	  and ((not interrupted_by_signal)
201
	       or (not interruptable)));
202
  if(interrupted_by_signal and interruptable){
203
    return false;
204
  }
205
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
206
    error_plus(0, errno, "waitpid");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
207
    return false;
208
  }
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
209
  if(WIFEXITED(status) and (WEXITSTATUS(status) == 0)){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
210
    return true;
211
  }
212
  return false;
213
}
214
215
int is_plymouth(const struct dirent *proc_entry){
216
  int ret;
217
  {
218
    uintmax_t maxvalue;
219
    char *tmp;
220
    errno = 0;
221
    maxvalue = strtoumax(proc_entry->d_name, &tmp, 10);
222
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
223
    if(errno != 0 or *tmp != '\0'
224
       or maxvalue != (uintmax_t)((pid_t)maxvalue)){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
225
      return 0;
226
    }
227
  }
237.5.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
228
  char exe_target[sizeof(plymouthd_path)];
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
229
  char *exe_link;
230
  ret = asprintf(&exe_link, "/proc/%s/exe", proc_entry->d_name);
231
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
232
    error_plus(0, errno, "asprintf");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
233
    return 0;
234
  }
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
235
  
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
236
  struct stat exe_stat;
237
  ret = lstat(exe_link, &exe_stat);
238
  if(ret == -1){
239
    free(exe_link);
240
    if(errno != ENOENT){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
241
      error_plus(0, errno, "lstat");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
242
    }
243
    return 0;
244
  }
245
  
246
  if(not S_ISLNK(exe_stat.st_mode)
247
     or exe_stat.st_uid != 0
248
     or exe_stat.st_gid != 0){
249
    free(exe_link);
250
    return 0;
251
  }
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
252
  
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
253
  ssize_t sret = readlink(exe_link, exe_target, sizeof(exe_target));
254
  free(exe_link);
237.5.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
255
  if((sret != (ssize_t)sizeof(plymouthd_path)-1) or
256
      (memcmp(plymouthd_path, exe_target,
257
	      sizeof(plymouthd_path)-1) != 0)){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
258
    return 0;
259
  }
260
  return 1;
261
}
262
263
pid_t get_pid(void){
264
  int ret;
504 by Teddy Hogeborn
* plugins.d/plymouth.c (plymouth_pid): Changed to
265
  uintmax_t maxvalue = 0;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
266
  FILE *pidfile = fopen(plymouth_pid, "r");
504 by Teddy Hogeborn
* plugins.d/plymouth.c (plymouth_pid): Changed to
267
  /* Try the new pid file location */
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
268
  if(pidfile != NULL){
269
    ret = fscanf(pidfile, "%" SCNuMAX, &maxvalue);
270
    if(ret != 1){
271
      maxvalue = 0;
272
    }
273
    fclose(pidfile);
274
  }
504 by Teddy Hogeborn
* plugins.d/plymouth.c (plymouth_pid): Changed to
275
  /* Try the old pid file location */
276
  if(maxvalue == 0){
277
    pidfile = fopen(plymouth_pid, "r");
278
    if(pidfile != NULL){
279
      ret = fscanf(pidfile, "%" SCNuMAX, &maxvalue);
280
      if(ret != 1){
281
	maxvalue = 0;
282
      }
283
      fclose(pidfile);
284
    }
285
  }
286
  /* Look for a plymouth process */
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
287
  if(maxvalue == 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
288
    struct dirent **direntries = NULL;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
289
    ret = scandir("/proc", &direntries, is_plymouth, alphasort);
237.5.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
290
    if (ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
291
      error_plus(0, errno, "scandir");
237.5.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
292
    }
293
    if (ret > 0){
294
      ret = sscanf(direntries[0]->d_name, "%" SCNuMAX, &maxvalue);
295
      if (ret < 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
296
	error_plus(0, errno, "sscanf");
237.5.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
297
      }
298
    }
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
299
    /* scandir might preallocate for this variable (man page unclear).
485 by Teddy Hogeborn
Merge from Björn.
300
       even if ret == 0, therefore we need to free it. */
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
301
    free(direntries);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
302
  }
303
  pid_t pid;
304
  pid = (pid_t)maxvalue;
305
  if((uintmax_t)pid == maxvalue){
306
    return pid;
307
  }
308
  
309
  return 0;
310
}
311
312
const char **getargv(pid_t pid){
313
  int cl_fd;
314
  char *cmdline_filename;
315
  ssize_t sret;
316
  int ret;
317
  
318
  ret = asprintf(&cmdline_filename, "/proc/%" PRIuMAX "/cmdline",
319
		 (uintmax_t)pid);
320
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
321
    error_plus(0, errno, "asprintf");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
322
    return NULL;
323
  }
324
  
325
  /* Open /proc/<pid>/cmdline  */
326
  cl_fd = open(cmdline_filename, O_RDONLY);
327
  free(cmdline_filename);
328
  if(cl_fd == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
329
    error_plus(0, errno, "open");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
330
    return NULL;
331
  }
332
  
333
  size_t cmdline_allocated = 0;
334
  size_t cmdline_len = 0;
335
  char *cmdline = NULL;
336
  char *tmp;
337
  const size_t blocksize = 1024;
338
  do {
339
    /* Allocate more space? */
340
    if(cmdline_len + blocksize > cmdline_allocated){
341
      tmp = realloc(cmdline, cmdline_allocated + blocksize);
342
      if(tmp == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
343
	error_plus(0, errno, "realloc");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
344
	free(cmdline);
345
	close(cl_fd);
346
	return NULL;
347
      }
348
      cmdline = tmp;
349
      cmdline_allocated += blocksize;
350
    }
351
    
352
    /* Read data */
353
    sret = read(cl_fd, cmdline + cmdline_len,
354
		cmdline_allocated - cmdline_len);
355
    if(sret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
356
      error_plus(0, errno, "read");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
357
      free(cmdline);
358
      close(cl_fd);
359
      return NULL;
360
    }
361
    cmdline_len += (size_t)sret;
362
  } while(sret != 0);
363
  ret = close(cl_fd);
364
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
365
    error_plus(0, errno, "close");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
366
    free(cmdline);
367
    return NULL;
368
  }
369
  
370
  /* we got cmdline and cmdline_len, ignore rest... */
432 by teddy at bsnet
* plugins.d/usplash.c (main): BUG FIX: allocate space for the final
371
  char **argv = malloc((argz_count(cmdline, cmdline_len) + 1)
431 by teddy at bsnet
* debian/watch: Also watch for "*.tar.xz" files.
372
		       * sizeof(char *)); /* Get number of args */
373
  if(argv == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
374
    error_plus(0, errno, "argv = malloc()");
431 by teddy at bsnet
* debian/watch: Also watch for "*.tar.xz" files.
375
    free(cmdline);
376
    return NULL;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
377
  }
431 by teddy at bsnet
* debian/watch: Also watch for "*.tar.xz" files.
378
  argz_extract(cmdline, cmdline_len, argv); /* Create argv */
379
  return (const char **)argv;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
380
}
381
382
int main(__attribute__((unused))int argc,
383
	 __attribute__((unused))char **argv){
384
  char *prompt;
385
  char *prompt_arg;
386
  pid_t plymouth_command_pid;
387
  int ret;
388
  bool bret;
389
390
  /* test -x /bin/plymouth */
391
  ret = access(plymouth_path, X_OK);
392
  if(ret == -1){
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
393
    /* Plymouth is probably not installed.  Don't print an error
394
       message, just exit. */
395
    exit(EX_UNAVAILABLE);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
396
  }
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
397
  
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
398
  { /* Add signal handlers */
399
    struct sigaction old_action,
400
      new_action = { .sa_handler = termination_handler,
401
		     .sa_flags = 0 };
402
    sigemptyset(&new_action.sa_mask);
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
403
    for(int *sig = (int[]){ SIGINT, SIGHUP, SIGTERM, 0 };
404
	*sig != 0; sig++){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
405
      ret = sigaddset(&new_action.sa_mask, *sig);
406
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
407
	error_plus(EX_OSERR, errno, "sigaddset");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
408
      }
409
      ret = sigaction(*sig, NULL, &old_action);
410
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
411
	error_plus(EX_OSERR, errno, "sigaction");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
412
      }
413
      if(old_action.sa_handler != SIG_IGN){
414
	ret = sigaction(*sig, &new_action, NULL);
415
	if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
416
	  error_plus(EX_OSERR, errno, "sigaction");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
417
	}
418
      }
419
    }
420
  }
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
421
  
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
422
  /* plymouth --ping */
423
  bret = exec_and_wait(&plymouth_command_pid, plymouth_path,
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
424
		       (const char *[])
425
		       { plymouth_path, "--ping", NULL },
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
426
		       true, false);
427
  if(not bret){
428
    if(interrupted_by_signal){
429
      kill_and_wait(plymouth_command_pid);
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
430
      exit(EXIT_FAILURE);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
431
    }
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
432
    /* Plymouth is probably not running.  Don't print an error
433
       message, just exit. */
434
    exit(EX_UNAVAILABLE);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
435
  }
436
  
437
  prompt = makeprompt();
438
  ret = asprintf(&prompt_arg, "--prompt=%s", prompt);
439
  free(prompt);
440
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
441
    error_plus(EX_OSERR, errno, "asprintf");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
442
  }
443
  
444
  /* plymouth ask-for-password --prompt="$prompt" */
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
445
  bret = exec_and_wait(&plymouth_command_pid,
446
		       plymouth_path, (const char *[])
447
		       { plymouth_path, "ask-for-password",
448
			   prompt_arg, NULL },
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
449
		       true, false);
450
  free(prompt_arg);
451
  if(bret){
452
    exit(EXIT_SUCCESS);
453
  }
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
454
  if(not interrupted_by_signal){
455
    /* exec_and_wait failed for some other reason */
456
    exit(EXIT_FAILURE);
457
  }
458
  kill_and_wait(plymouth_command_pid);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
459
  
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
460
  const char **plymouthd_argv;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
461
  pid_t pid = get_pid();
462
  if(pid == 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
463
    error_plus(0, 0, "plymouthd pid not found");
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
464
    plymouthd_argv = plymouthd_default_argv;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
465
  } else {
466
    plymouthd_argv = getargv(pid);
467
  }
468
  
436 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
469
  bret = exec_and_wait(NULL, plymouth_path, (const char *[])
470
		       { plymouth_path, "quit", NULL },
471
		       false, false);
472
  if(not bret){
473
    exit(EXIT_FAILURE);
474
  }
475
  bret = exec_and_wait(NULL, plymouthd_path, plymouthd_argv,
476
		       false, true);
477
  if(not bret){
478
    exit(EXIT_FAILURE);
479
  }
480
  exec_and_wait(NULL, plymouth_path, (const char *[])
481
		{ plymouth_path, "show-splash", NULL },
482
		false, false);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
483
  exit(EXIT_FAILURE);
484
}