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* Plymouth - Read a password from Plymouth and output it
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* Copyright © 2010-2017 Teddy Hogeborn
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* Copyright © 2010-2017 Björn Påhlsson
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* This file is part of Mandos.
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* Mandos is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* Mandos is distributed in the hope that it will be useful, but
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* Copyright © 2010-2016 Teddy Hogeborn
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* Copyright © 2010-2016 Björn Påhlsson
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* This program is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with Mandos. If not, see <http://www.gnu.org/licenses/>.
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* along with this program. If not, see
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* <http://www.gnu.org/licenses/>.
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* Contact the authors at <mandos@recompile.se>.
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for (; argv[i] != NULL; i++){
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for (; argv[i]!=NULL; i++){
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tmp = realloc(new_argv, sizeof(const char *) * ((size_t)i + 2));
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error_plus(0, errno, "realloc");
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/* Try the old pid file location */
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if(proc_id == 0){
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pidfile = fopen(plymouth_old_pid, "r");
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pidfile = fopen(plymouth_pid, "r");
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if(pidfile != NULL){
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ret = fscanf(pidfile, "%" SCNuMAX, &proc_id);
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error_plus(0, errno, "scandir");
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for(int i = ret-1; i >= 0; i--){
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ret = sscanf(direntries[i]->d_name, "%" SCNuMAX, &proc_id);
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error_plus(0, errno, "sscanf");
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ret = sscanf(direntries[0]->d_name, "%" SCNuMAX, &proc_id);
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error_plus(0, errno, "sscanf");
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/* scandir might preallocate for this variable (man page unclear).
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argz_extract(cmdline, cmdline_len, argv); /* Create argv */
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return (const char * const *)argv;
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int main(__attribute__((unused))int argc,
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kill_and_wait(plymouth_command_pid);
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char **plymouthd_argv = NULL;
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const char * const *plymouthd_argv;
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pid_t pid = get_pid();
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error_plus(0, 0, "plymouthd pid not found");
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plymouthd_argv = plymouthd_default_argv;
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plymouthd_argv = getargv(pid);
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{ plymouth_path, "quit", NULL },
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if(plymouthd_argv != NULL){
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free(*plymouthd_argv);
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free(plymouthd_argv);
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exit(EXIT_FAILURE);
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bret = exec_and_wait(NULL, plymouthd_path,
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(plymouthd_argv != NULL)
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? (const char * const *)plymouthd_argv
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: plymouthd_default_argv,
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bret = exec_and_wait(NULL, plymouthd_path, plymouthd_argv,
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if(plymouthd_argv != NULL){
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free(*plymouthd_argv);
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free(plymouthd_argv);
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exit(EXIT_FAILURE);