toaruos/apps/live-session.c

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/* vim: tabstop=4 shiftwidth=4 noexpandtab
* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2018 K. Lange
*
* live-session - Run live CD user session.
*
* Launches the general session manager as 'local', waits for the
* session to end, then launches the login manager.
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <sys/wait.h>
#include <toaru/auth.h>
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#include <toaru/yutani.h>
#include <toaru/trace.h>
#define TRACE_APP_NAME "live-session"
int main(int argc, char * argv[]) {
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int pid;
if (getuid() != 0) {
return 1;
}
int _session_pid = fork();
if (!_session_pid) {
setuid(1000);
toaru_auth_set_vars();
char * args[] = {"/bin/session", NULL};
execvp(args[0], args);
return 1;
}
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/* Dummy session for live-session prevents compositor from killing itself
* when the main session dies the first time. */
yutani_init();
do {
pid = wait(NULL);
} while ((pid > 0 && pid != _session_pid) || (pid == -1 && errno == EINTR));
TRACE("Live session has ended, launching graphical login.");
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int _glogin_pid = fork();
if (!_glogin_pid) {
char * args[] = {"/bin/glogin",NULL};
execvp(args[0],args);
system("reboot");
}
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do {
pid = wait(NULL);
} while ((pid > 0 && pid != _glogin_pid) || (pid == -1 && errno == EINTR));
return 0;
}