/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release
237.2.207 by Teddy Hogeborn
Update copyright year to "2010" wherever appropriate.
1
/*  -*- coding: utf-8 -*- */
2
/*
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
3
 * Plymouth - Read a password from Plymouth and output it
237.2.207 by Teddy Hogeborn
Update copyright year to "2010" wherever appropriate.
4
 * 
237.7.14 by Teddy Hogeborn
Update copyright year to "2011" wherever appropriate.
5
 * Copyright © 2010-2011 Teddy Hogeborn
6
 * Copyright © 2010-2011 Björn Påhlsson
237.2.207 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*/
237.2.199 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() */
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
38
#include <stdio.h>		/* asprintf(), perror(), fopen(),
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
39
				   fscanf(), vasprintf(), fprintf(), vfprintf() */
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
40
#include <unistd.h>		/* close(), readlink(), read(),
41
				   fork(), setsid(), chdir(), dup2(),
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
42
				   STDERR_FILENO, execv(), access() */
43
#include <stdlib.h>		/* free(), EXIT_FAILURE, realloc(),
44
				   EXIT_SUCCESS, malloc(), _exit(),
45
				   getenv() */
46
#include <dirent.h>		/* scandir(), alphasort() */
47
#include <inttypes.h>		/* intmax_t, strtoumax(), SCNuMAX */
48
#include <sys/stat.h>		/* struct stat, lstat() */
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
49
#include <sysexits.h>		/* EX_OSERR, EX_UNAVAILABLE */
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
50
#include <error.h>		/* error() */
51
#include <errno.h>		/* TEMP_FAILURE_RETRY */
237.2.194 by teddy at bsnet
* debian/watch: Also watch for "*.tar.xz" files.
52
#include <argz.h>		/* argz_count(), argz_extract() */
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
53
#include <stdarg.h>		/* va_list, va_start(), ... */
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
54
55
sig_atomic_t interrupted_by_signal = 0;
56
const char plymouth_pid[] = "/dev/.initramfs/plymouth.pid";
57
const char plymouth_path[] = "/bin/plymouth";
58
const char plymouthd_path[] = "/sbin/plymouthd";
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
59
const char *plymouthd_default_argv[] = {"/sbin/plymouthd",
60
					"--mode=boot",
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
61
					"--attach-to-session",
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
62
					"--pid-file="
63
					"/dev/.initramfs/"
64
					"plymouth.pid",
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
65
					NULL };
66
67
static void termination_handler(__attribute__((unused))int signum){
68
  if(interrupted_by_signal){
69
    return;
70
  }
71
  interrupted_by_signal = 1;
72
}
73
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
74
/* Function to use when printing errors */
75
void error_plus(int status, int errnum, const char *formatstring, ...){
76
  va_list ap;
77
  char *text;
78
  int ret;
79
  
80
  va_start(ap, formatstring);
81
  ret = vasprintf(&text, formatstring, ap);
82
  if (ret == -1){
83
    fprintf(stderr, "Mandos plugin %s: ", program_invocation_short_name);
84
    vfprintf(stderr, formatstring, ap);
85
    fprintf(stderr, ": ");
86
    fprintf(stderr, "%s\n", strerror(errnum));
87
    error(status, errno, "vasprintf while printing error");
88
    return;
89
  }
90
  fprintf(stderr, "Mandos plugin ");
91
  error(status, errnum, "%s", text);
92
  free(text);
93
}
94
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
95
/* Create prompt string */
96
char *makeprompt(void){
97
  int ret = 0;
98
  char *prompt;
99
  const char *const cryptsource = getenv("cryptsource");
100
  const char *const crypttarget = getenv("crypttarget");
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
101
  const char prompt_start[] = "Unlocking the disk";
102
  const char prompt_end[] = "Enter passphrase";
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
103
  
104
  if(cryptsource == NULL){
105
    if(crypttarget == NULL){
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
106
      ret = asprintf(&prompt, "%s\n%s", prompt_start, prompt_end);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
107
    } else {
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
108
      ret = asprintf(&prompt, "%s (%s)\n%s", prompt_start,
109
		     crypttarget, prompt_end);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
110
    }
111
  } else {
112
    if(crypttarget == NULL){
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
113
      ret = asprintf(&prompt, "%s %s\n%s", prompt_start, cryptsource,
114
		     prompt_end);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
115
    } else {
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
116
      ret = asprintf(&prompt, "%s %s (%s)\n%s", prompt_start,
117
		     cryptsource, crypttarget, prompt_end);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
118
    }
119
  }
120
  if(ret == -1){
121
    return NULL;
122
  }
123
  return prompt;
124
}
125
126
void kill_and_wait(pid_t pid){
127
  TEMP_FAILURE_RETRY(kill(pid, SIGTERM));
128
  TEMP_FAILURE_RETRY(waitpid(pid, NULL, 0));
129
}
130
131
bool become_a_daemon(void){
132
  int ret = setuid(geteuid());
133
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
134
    error_plus(0, errno, "setuid");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
135
  }
136
    
137
  setsid();
138
  ret = chdir("/");
139
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
140
    error_plus(0, errno, "chdir");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
141
    return false;
142
  }
143
  ret = dup2(STDERR_FILENO, STDOUT_FILENO); /* replace our stdout */
144
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
145
    error_plus(0, errno, "dup2");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
146
    return false;
147
  }
148
  return true;
149
}
150
151
bool exec_and_wait(pid_t *pid_return, const char *path,
152
		   const char **argv, bool interruptable,
153
		   bool daemonize){
154
  int status;
155
  int ret;
156
  pid_t pid;
157
  pid = fork();
158
  if(pid == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
159
    error_plus(0, errno, "fork");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
160
    return false;
161
  }
162
  if(pid == 0){
163
    /* Child */
164
    if(daemonize){
165
      if(not become_a_daemon()){
166
	_exit(EX_OSERR);
167
      }
168
    }
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
169
    
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
170
    char **new_argv = NULL;
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
171
    char **tmp;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
172
    int i = 0;
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
173
    for (; argv[i]!=NULL; i++){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
174
      tmp = realloc(new_argv, sizeof(const char *) * ((size_t)i + 1));
175
      if (tmp == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
176
	error_plus(0, errno, "realloc");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
177
	free(new_argv);
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
178
	_exit(EX_OSERR);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
179
      }
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
180
      new_argv = tmp;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
181
      new_argv[i] = strdup(argv[i]);
182
    }
237.7.10 by Teddy Hogeborn
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
183
    new_argv[i] = NULL;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
184
    
185
    execv(path, (char *const *)new_argv);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
186
    error_plus(0, errno, "execv");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
187
    _exit(EXIT_FAILURE);
188
  }
189
  if(pid_return != NULL){
190
    *pid_return = pid;
191
  }
192
  do {
193
    ret = waitpid(pid, &status, 0);
194
  } while(ret == -1 and errno == EINTR
195
	  and ((not interrupted_by_signal)
196
	       or (not interruptable)));
197
  if(interrupted_by_signal and interruptable){
198
    return false;
199
  }
200
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
201
    error_plus(0, errno, "waitpid");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
202
    return false;
203
  }
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
204
  if(WIFEXITED(status) and (WEXITSTATUS(status) == 0)){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
205
    return true;
206
  }
207
  return false;
208
}
209
210
int is_plymouth(const struct dirent *proc_entry){
211
  int ret;
212
  {
213
    uintmax_t maxvalue;
214
    char *tmp;
215
    errno = 0;
216
    maxvalue = strtoumax(proc_entry->d_name, &tmp, 10);
217
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
218
    if(errno != 0 or *tmp != '\0'
219
       or maxvalue != (uintmax_t)((pid_t)maxvalue)){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
220
      return 0;
221
    }
222
  }
275.1.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
223
  char exe_target[sizeof(plymouthd_path)];
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
224
  char *exe_link;
225
  ret = asprintf(&exe_link, "/proc/%s/exe", proc_entry->d_name);
226
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
227
    error_plus(0, errno, "asprintf");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
228
    return 0;
229
  }
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
230
  
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
231
  struct stat exe_stat;
232
  ret = lstat(exe_link, &exe_stat);
233
  if(ret == -1){
234
    free(exe_link);
235
    if(errno != ENOENT){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
236
      error_plus(0, errno, "lstat");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
237
    }
238
    return 0;
239
  }
240
  
241
  if(not S_ISLNK(exe_stat.st_mode)
242
     or exe_stat.st_uid != 0
243
     or exe_stat.st_gid != 0){
244
    free(exe_link);
245
    return 0;
246
  }
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
247
  
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
248
  ssize_t sret = readlink(exe_link, exe_target, sizeof(exe_target));
249
  free(exe_link);
275.1.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
250
  if((sret != (ssize_t)sizeof(plymouthd_path)-1) or
251
      (memcmp(plymouthd_path, exe_target,
252
	      sizeof(plymouthd_path)-1) != 0)){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
253
    return 0;
254
  }
255
  return 1;
256
}
257
258
pid_t get_pid(void){
259
  int ret;
260
  FILE *pidfile = fopen(plymouth_pid, "r");
261
  uintmax_t maxvalue = 0;
262
  if(pidfile != NULL){
263
    ret = fscanf(pidfile, "%" SCNuMAX, &maxvalue);
264
    if(ret != 1){
265
      maxvalue = 0;
266
    }
267
    fclose(pidfile);
268
  }
269
  if(maxvalue == 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
270
    struct dirent **direntries = NULL;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
271
    ret = scandir("/proc", &direntries, is_plymouth, alphasort);
275.1.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
272
    if (ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
273
      error_plus(0, errno, "scandir");
275.1.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
274
    }
275
    if (ret > 0){
276
      ret = sscanf(direntries[0]->d_name, "%" SCNuMAX, &maxvalue);
277
      if (ret < 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
278
	error_plus(0, errno, "sscanf");
275.1.1 by Björn Påhlsson
password-prompt: added conflic handling with plymouth daemon.
279
      }
280
    }
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
281
    /* scandir might preallocate for this variable (man page unclear).
282
       even if ret == 0, we need to free it. */
283
    free(direntries);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
284
  }
285
  pid_t pid;
286
  pid = (pid_t)maxvalue;
287
  if((uintmax_t)pid == maxvalue){
288
    return pid;
289
  }
290
  
291
  return 0;
292
}
293
294
const char **getargv(pid_t pid){
295
  int cl_fd;
296
  char *cmdline_filename;
297
  ssize_t sret;
298
  int ret;
299
  
300
  ret = asprintf(&cmdline_filename, "/proc/%" PRIuMAX "/cmdline",
301
		 (uintmax_t)pid);
302
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
303
    error_plus(0, errno, "asprintf");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
304
    return NULL;
305
  }
306
  
307
  /* Open /proc/<pid>/cmdline  */
308
  cl_fd = open(cmdline_filename, O_RDONLY);
309
  free(cmdline_filename);
310
  if(cl_fd == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
311
    error_plus(0, errno, "open");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
312
    return NULL;
313
  }
314
  
315
  size_t cmdline_allocated = 0;
316
  size_t cmdline_len = 0;
317
  char *cmdline = NULL;
318
  char *tmp;
319
  const size_t blocksize = 1024;
320
  do {
321
    /* Allocate more space? */
322
    if(cmdline_len + blocksize > cmdline_allocated){
323
      tmp = realloc(cmdline, cmdline_allocated + blocksize);
324
      if(tmp == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
325
	error_plus(0, errno, "realloc");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
326
	free(cmdline);
327
	close(cl_fd);
328
	return NULL;
329
      }
330
      cmdline = tmp;
331
      cmdline_allocated += blocksize;
332
    }
333
    
334
    /* Read data */
335
    sret = read(cl_fd, cmdline + cmdline_len,
336
		cmdline_allocated - cmdline_len);
337
    if(sret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
338
      error_plus(0, errno, "read");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
339
      free(cmdline);
340
      close(cl_fd);
341
      return NULL;
342
    }
343
    cmdline_len += (size_t)sret;
344
  } while(sret != 0);
345
  ret = close(cl_fd);
346
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
347
    error_plus(0, errno, "close");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
348
    free(cmdline);
349
    return NULL;
350
  }
351
  
352
  /* we got cmdline and cmdline_len, ignore rest... */
237.2.195 by teddy at bsnet
* plugins.d/usplash.c (main): BUG FIX: allocate space for the final
353
  char **argv = malloc((argz_count(cmdline, cmdline_len) + 1)
237.2.194 by teddy at bsnet
* debian/watch: Also watch for "*.tar.xz" files.
354
		       * sizeof(char *)); /* Get number of args */
355
  if(argv == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
356
    error_plus(0, errno, "argv = malloc()");
237.2.194 by teddy at bsnet
* debian/watch: Also watch for "*.tar.xz" files.
357
    free(cmdline);
358
    return NULL;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
359
  }
237.2.194 by teddy at bsnet
* debian/watch: Also watch for "*.tar.xz" files.
360
  argz_extract(cmdline, cmdline_len, argv); /* Create argv */
361
  return (const char **)argv;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
362
}
363
364
int main(__attribute__((unused))int argc,
365
	 __attribute__((unused))char **argv){
366
  char *prompt;
367
  char *prompt_arg;
368
  pid_t plymouth_command_pid;
369
  int ret;
370
  bool bret;
371
372
  /* test -x /bin/plymouth */
373
  ret = access(plymouth_path, X_OK);
374
  if(ret == -1){
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
375
    /* Plymouth is probably not installed.  Don't print an error
376
       message, just exit. */
377
    exit(EX_UNAVAILABLE);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
378
  }
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
379
  
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
380
  { /* Add signal handlers */
381
    struct sigaction old_action,
382
      new_action = { .sa_handler = termination_handler,
383
		     .sa_flags = 0 };
384
    sigemptyset(&new_action.sa_mask);
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
385
    for(int *sig = (int[]){ SIGINT, SIGHUP, SIGTERM, 0 };
386
	*sig != 0; sig++){
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
387
      ret = sigaddset(&new_action.sa_mask, *sig);
388
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
389
	error_plus(EX_OSERR, errno, "sigaddset");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
390
      }
391
      ret = sigaction(*sig, NULL, &old_action);
392
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
393
	error_plus(EX_OSERR, errno, "sigaction");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
394
      }
395
      if(old_action.sa_handler != SIG_IGN){
396
	ret = sigaction(*sig, &new_action, NULL);
397
	if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
398
	  error_plus(EX_OSERR, errno, "sigaction");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
399
	}
400
      }
401
    }
402
  }
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
403
  
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
404
  /* plymouth --ping */
405
  bret = exec_and_wait(&plymouth_command_pid, plymouth_path,
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
406
		       (const char *[])
407
		       { plymouth_path, "--ping", NULL },
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
408
		       true, false);
409
  if(not bret){
410
    if(interrupted_by_signal){
411
      kill_and_wait(plymouth_command_pid);
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
412
      exit(EXIT_FAILURE);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
413
    }
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
414
    /* Plymouth is probably not running.  Don't print an error
415
       message, just exit. */
416
    exit(EX_UNAVAILABLE);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
417
  }
418
  
419
  prompt = makeprompt();
420
  ret = asprintf(&prompt_arg, "--prompt=%s", prompt);
421
  free(prompt);
422
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
423
    error_plus(EX_OSERR, errno, "asprintf");
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
424
  }
425
  
426
  /* plymouth ask-for-password --prompt="$prompt" */
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
427
  bret = exec_and_wait(&plymouth_command_pid,
428
		       plymouth_path, (const char *[])
429
		       { plymouth_path, "ask-for-password",
430
			   prompt_arg, NULL },
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
431
		       true, false);
432
  free(prompt_arg);
433
  if(bret){
434
    exit(EXIT_SUCCESS);
435
  }
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
436
  if(not interrupted_by_signal){
437
    /* exec_and_wait failed for some other reason */
438
    exit(EXIT_FAILURE);
439
  }
440
  kill_and_wait(plymouth_command_pid);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
441
  
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
442
  const char **plymouthd_argv;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
443
  pid_t pid = get_pid();
444
  if(pid == 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
445
    error_plus(0, 0, "plymouthd pid not found");
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
446
    plymouthd_argv = plymouthd_default_argv;
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
447
  } else {
448
    plymouthd_argv = getargv(pid);
449
  }
450
  
237.2.199 by teddy at bsnet
* plugins.d/plymouth.c: Break lines, fix whitespace. Remove
451
  bret = exec_and_wait(NULL, plymouth_path, (const char *[])
452
		       { plymouth_path, "quit", NULL },
453
		       false, false);
454
  if(not bret){
455
    exit(EXIT_FAILURE);
456
  }
457
  bret = exec_and_wait(NULL, plymouthd_path, plymouthd_argv,
458
		       false, true);
459
  if(not bret){
460
    exit(EXIT_FAILURE);
461
  }
462
  exec_and_wait(NULL, plymouth_path, (const char *[])
463
		{ plymouth_path, "show-splash", NULL },
464
		false, false);
24.1.157 by Björn Påhlsson
added the actually plugin file for plymouth
465
  exit(EXIT_FAILURE);
466
}