int main(int argc, char **argv) { pid_t installpid, childpid; int waitStatus; int fd = -1; int doShutdown =0; reboot_action shutdown_method = HALT; int isSerial = 0; int isDevelMode = 0; char * console = NULL; int doKill = 1; char * argvc[15]; char buf[1024]; char ** argvp = argvc; char twelve = 12; struct serial_struct si; int i, disable_keys; int ret; if (!strncmp(basename(argv[0]), "poweroff", 8)) { printf("Running poweroff...\n"); fd = getInitPid(); if (fd > 0) kill(fd, SIGUSR2); doExit(0); } else if (!strncmp(basename(argv[0]), "halt", 4)) { printf("Running halt...\n"); fd = getInitPid(); if (fd > 0) kill(fd, SIGUSR1); doExit(0); } else if (!strncmp(basename(argv[0]), "reboot", 6)) { printf("Running reboot...\n"); fd = getInitPid(); if (fd > 0) kill(fd, SIGINT); doExit(0); } /* turn off screen blanking */ printstr("\033[9;0]"); printstr("\033[8]"); umask(022); /* set up signal handler */ setupBacktrace(); printstr("\nGreetings.\n"); printf("anaconda installer init version %s starting\n", VERSION); printf("mounting /proc filesystem... "); fflush(stdout); if (mount("/proc", "/proc", "proc", 0, NULL)) fatal_error(1); printf("done\n"); /* check for development mode early */ int fdn; if ((fdn = open("/proc/cmdline", O_RDONLY, 0)) != -1) { /* get cmdline info */ int len = read(fdn, buf, sizeof(buf) - 1); char *develstart; close(fdn); /* check the arguments */ if (len > 0) { develstart = buf; while (develstart && (*develstart) != '\0') { /* strip spaces */ while(*develstart == ' ') develstart++; if(*develstart == '\0') break; /* not the word we are looking for */ if (strncmp(develstart, "devel", 5)) { develstart = strchr(develstart, ' '); continue; } /* is it isolated? */ if(((*(develstart+5)) == ' ' || (*(develstart+5)) == '\0')) { printf("Enabling development mode - cores will be dumped\n"); isDevelMode++; break; } /* Find next argument */ develstart = strchr(develstart, ' '); } } } /* these args are only for testing from commandline */ for (i = 1; i < argc; i++) { if (!strcmp (argv[i], "serial")) { isSerial = 1; break; } } printf("creating /dev filesystem... "); fflush(stdout); if (mount("/dev", "/dev", "tmpfs", 0, NULL)) fatal_error(1); createDevices(); printf("done\n"); printf("starting udev..."); fflush(stdout); if ((childpid = fork()) == 0) { execl("/sbin/udevd", "/sbin/udevd", "--daemon", NULL); fprintf(stderr, " exec of /sbin/udevd failed."); exit(1); } /* wait at least until the udevd process that we forked exits */ do { pid_t retpid; int waitstatus; retpid = wait(&waitstatus); if (retpid == -1) { if (errno == EINTR) continue; /* if the child exited before we called waitpid, we can get * ECHILD without anything really being wrong; we just lost * the race.*/ if (errno == ECHILD) break; printf("init: error waiting on udevd: %m\n"); exit(1); } else if ((retpid == childpid) && WIFEXITED(waitstatus)) { break; } } while (1); if (fork() == 0) { execl("/sbin/udevadm", "udevadm", "control", "--env=ANACONDA=1", NULL); fprintf(stderr, " exec of /sbin/udevadm failed."); exit(1); } printf("done\n"); printf("mounting /dev/pts (unix98 pty) filesystem... "); fflush(stdout); if (mount("/dev/pts", "/dev/pts", "devpts", 0, NULL)) fatal_error(1); printf("done\n"); printf("mounting /sys filesystem... "); fflush(stdout); if (mount("/sys", "/sys", "sysfs", 0, NULL)) fatal_error(1); printf("done\n"); /* if anaconda dies suddenly we are doomed, so at least make a coredump */ struct rlimit corelimit = { RLIM_INFINITY, RLIM_INFINITY}; ret = setrlimit(RLIMIT_CORE, &corelimit); if (ret) { perror("setrlimit failed - no coredumps will be available"); } doKill = getKillPolicy(); #if !defined(__s390__) && !defined(__s390x__) static struct termios orig_cmode; static int orig_flags; struct termios cmode, mode; int cfd; cfd = open("/dev/console", O_RDONLY); tcgetattr(cfd,&orig_cmode); orig_flags = fcntl(cfd, F_GETFL); close(cfd); cmode = orig_cmode; cmode.c_lflag &= (~ECHO); cfd = open("/dev/console", O_WRONLY); tcsetattr(cfd,TCSANOW,&cmode); close(cfd); /* handle weird consoles */ #if defined(__powerpc__) char * consoles[] = { "/dev/hvc0", /* hvc for JS20 */ "/dev/hvsi0", "/dev/hvsi1", "/dev/hvsi2", /* hvsi for POWER5 */ NULL }; #elif defined (__ia64__) char * consoles[] = { "/dev/ttySG0", "/dev/xvc0", "/dev/hvc0", NULL }; #elif defined (__i386__) || defined (__x86_64__) char * consoles[] = { "/dev/xvc0", "/dev/hvc0", NULL }; #else char * consoles[] = { NULL }; #endif for (i = 0; consoles[i] != NULL; i++) { if ((fd = open(consoles[i], O_RDWR)) >= 0 && !tcgetattr(fd, &mode) && !termcmp(&cmode, &mode)) { printf("anaconda installer init version %s using %s as console\n", VERSION, consoles[i]); isSerial = 3; console = strdup(consoles[i]); break; } close(fd); } cfd = open("/dev/console", O_WRONLY); tcsetattr(cfd,TCSANOW,&orig_cmode); close(cfd); if ((fd < 0) && (ioctl (0, TIOCLINUX, &twelve) < 0)) { isSerial = 2; if (ioctl(0, TIOCGSERIAL, &si) == -1) { isSerial = 0; } } if (isSerial && (isSerial != 3)) { char *device = "/dev/ttyS0"; printf("anaconda installer init version %s using a serial console\n", VERSION); if (isSerial == 2) device = "/dev/console"; fd = open(device, O_RDWR, 0); if (fd < 0) device = "/dev/tts/0"; if (fd < 0) { printf("failed to open %s\n", device); fatal_error(1); } setupTerminal(fd); } else if (isSerial == 3) { setupTerminal(fd); } else if (fd < 0) { fd = open("/dev/tty1", O_RDWR, 0); if (fd < 0) fd = open("/dev/vc/1", O_RDWR, 0); if (fd < 0) { printf("failed to open /dev/tty1 and /dev/vc/1"); fatal_error(1); } } setsid(); if (ioctl(0, TIOCSCTTY, NULL)) { printf("could not set new controlling tty\n"); } dup2(fd, 0); dup2(fd, 1); dup2(fd, 2); if (fd > 2) close(fd); #else dup2(0, 1); dup2(0, 2); #endif /* disable Ctrl+Z, Ctrl+C, etc ... but not in rescue mode */ disable_keys = 1; if (argc > 1) if (strstr(argv[1], "rescue")) disable_keys = 0; if (disable_keys) { tcgetattr(0, &ts); ts.c_iflag &= ~BRKINT; ts.c_iflag |= IGNBRK; ts.c_iflag &= ~ISIG; tcsetattr(0, TCSANOW, &ts); } ret = sethostname("localhost.localdomain", 21); /* the default domainname (as of 2.0.35) is "(none)", which confuses glibc */ ret = setdomainname("", 0); printf("trying to remount root filesystem read write... "); fflush(stdout); if (mount("/", "/", "ext2", MS_REMOUNT | MS_MGC_VAL, NULL)) { fatal_error(1); } printf("done\n"); /* we want our /tmp to be tmpfs, but we also want to let people hack * their initrds to add things like a ks.cfg, so this has to be a little * tricky */ rename("/tmp", "/oldtmp"); mkdir("/tmp", 0755); printf("mounting /tmp as tmpfs... "); fflush(stdout); if (mount("none", "/tmp", "tmpfs", 0, "size=250m")) fatal_error(1); printf("done\n"); copyDirectory("/oldtmp", "/tmp", copyErrorFn, copyErrorFn); unlink("/oldtmp"); /* Now we have some /tmp space set up, and /etc and /dev point to it. We should be in pretty good shape. */ startSyslog(); /* write out a pid file */ if ((fd = open("/var/run/init.pid", O_WRONLY|O_CREAT, 0644)) > 0) { char * buf = malloc(10); int ret; snprintf(buf, 9, "%d", getpid()); ret = write(fd, buf, strlen(buf)); close(fd); free(buf); } else { printf("unable to write init.pid (%d): %m\n", errno); sleep(2); } /* D-Bus */ if (fork() == 0) { execl("/sbin/dbus-uuidgen", "/sbin/dbus-uuidgen", "--ensure", NULL); fprintf(stderr, "exec of /sbin/dbus-uuidgen failed."); doExit(1); } if (fork() == 0) { execl("/sbin/dbus-daemon", "/sbin/dbus-daemon", "--system", NULL); fprintf(stderr, "exec of /sbin/dbus-daemon failed."); doExit(1); } sleep(2); /* Go into normal init mode - keep going, and then do a orderly shutdown when: 1) /bin/install exits 2) we receive a SIGHUP */ printf("running install...\n"); if (!(installpid = fork())) { /* child */ *argvp++ = "/sbin/loader"; if (isSerial == 3) { *argvp++ = "--virtpconsole"; *argvp++ = console; } if (isDevelMode) { *argvp++ = "--devel"; } *argvp++ = NULL; printf("running %s\n", argvc[0]); execve(argvc[0], argvc, env); shutDown(1, HALT); } /* signal handlers for halt/poweroff */ signal(SIGUSR1, sigUsr1Handler); signal(SIGUSR2, sigUsr2Handler); /* set up the ctrl+alt+delete handler to kill our pid, not pid 1 */ signal(SIGINT, sigintHandler); if ((fd = open("/proc/sys/kernel/cad_pid", O_WRONLY)) != -1) { char buf[7]; size_t count; sprintf(buf, "%d", getpid()); count = write(fd, buf, strlen(buf)); close(fd); /* if we succeeded in writing our pid, turn off the hard reboot ctrl-alt-del handler */ if (count == strlen(buf) && (fd = open("/proc/sys/kernel/ctrl-alt-del", O_WRONLY)) != -1) { int ret; ret = write(fd, "0", 1); close(fd); } } while (!doShutdown) { pid_t childpid; childpid = wait(&waitStatus); if (childpid == installpid) { doShutdown = 1; ioctl(0, VT_ACTIVATE, 1); } } #ifdef ROCKS /* * ignore child processes that throw error stati when * they terminate */ shutdown_method = REBOOT; #else if (!WIFEXITED(waitStatus) || (WIFEXITED(waitStatus) && WEXITSTATUS(waitStatus))) { /* Restore terminal */ cfd = open("/dev/console", O_RDONLY); tcsetattr(cfd, TCSANOW, &orig_cmode); fcntl(cfd, F_SETFL, orig_flags); close(cfd); shutdown_method = DELAYED_REBOOT; printf("install exited abnormally [%d/%d] ", WIFEXITED(waitStatus), WEXITSTATUS(waitStatus)); if (WIFSIGNALED(waitStatus)) { printf("-- received signal %d", WTERMSIG(waitStatus)); } printf("\n"); /* If debug mode was requested, spawn shell */ if(isDevelMode) { pid_t shellpid; printf("Development mode requested spawning shell...\n"); if ((shellpid = fork()) == 0) { execl("/sbin/bash", "/sbin/bash", NULL); } else if (shellpid > 0) { waitpid(shellpid, NULL, 0); } else { perror("Execution of debug shell failed."); } } } else { shutdown_method = REBOOT; } #endif #ifdef ROCKS while(dontReboot()) { sleep(10); } #endif shutDown(doKill, shutdown_method); return 0; }
int main(int argc, char *argv[]) { //** init Qt (graphics toolkit) - www.qtsoftware.com // note: environment variable parsing is done by Qt before main is entered. // This makes setting environment vars to modify Qt behavior impossible. QApplication app(argc, argv); //** init splash screen, do it as early in program start as possible QSplashScreen mySplash(QPixmap(":/title_page.png")); mySplash.show(); app.processEvents(); //** set the names to our website QCoreApplication::setOrganizationName("the-butterfly-effect.org"); QCoreApplication::setOrganizationDomain("the-butterfly-effect.org"); QCoreApplication::setApplicationName(APPNAME); //** parse the command line arguments QStringList myCmdLineList = app.arguments(); bool isParsingSuccess = true; // we can skip argument zero - that's the tbe executable itself for (int i = 1; i < myCmdLineList.size() && isParsingSuccess; i++) { QString myArg = myCmdLineList[i]; if (myArg.startsWith("-")) { // remove one or two dashes - we're slightly more flexible than usual myArg.remove(0, 1); if (myArg.startsWith("-")) myArg.remove(0, 1); // extract value with = if there is one QStringList myExp = myArg.split("="); // is it matching with short or long? int j = 0; bool isMatch = false; while (theArgsTable[j].theFunctionPtr != nullptr) { if (myExp[0] == theArgsTable[j].theFullCommand || myExp[0] == theArgsTable[j].theShortCommand) { isMatch = true; QString myVal; if (theArgsTable[j].needsArgument == true) { // was it '='? if (myExp.count() == 2) myVal = myExp[1]; else { // or is it ' ' -> which means we need to grab next arg if (i + 1 < myCmdLineList.size()) { myVal = myCmdLineList[i + 1]; i++; } else { isParsingSuccess = false; break; } } } if (theArgsTable[j].theFunctionPtr(myVal) == false) isParsingSuccess = false; } ++j; } if (isMatch == false) { isParsingSuccess = false; break; } } else { // if it is a single string, it probably is a file name theStartFileName = myArg; } } if (isParsingSuccess == false) displayHelp(""); #ifdef QT_DEBUG setupBacktrace(); #endif //** read the locale from the environment and set the output language if (theIsRunAsRegression) { DEBUG1("Regression: not loading any translators!"); } else TheTranslator.init(); //** now the i18n is set up, let's show a message in the user's language. mySplash.showMessage(MainWindow::getWelcomeMessage()); app.processEvents(); DEBUG3("SUMMARY:"); DEBUG3(" Verbosity is: %d / Fullscreen is %d", theVerbosity, theIsMaximized); if (theIsRunAsRegression) { DEBUG3(" Regression levels: '%s'", ASCII(theStartFileName)); } else { DEBUG3(" Start file name is: '%s'", ASCII(theStartFileName)); } // scope limiting { QSettings mySettings; DEBUG3(" using settings from: '%s'", ASCII(mySettings.fileName())); } if (theIsLevelCreator) { // TODO: check for environment variable QT_HASH_SEED=1 if (NULL == getenv("QT_HASH_SEED")) { printf("\nIMPORTANT:\n"); printf("Please 'export QT_HASH_SEED=1' before starting the TBE level creator.\n"); printf("This ensures that the level files will be written in a consistent order.\n"); exit(1); } DEBUG3(" got QT_HASH_SEED environment set, xml consistent order writing enabled"); } //** setup main window, shut down splash screen MainWindow myMain(theIsMaximized); myMain.show(); mySplash.finish(&myMain); //** run the main display loop until oblivion return app.exec(); }