diff options
Diffstat (limited to 'usr.sbin/sysinstall/system.c')
-rw-r--r-- | usr.sbin/sysinstall/system.c | 555 |
1 files changed, 0 insertions, 555 deletions
diff --git a/usr.sbin/sysinstall/system.c b/usr.sbin/sysinstall/system.c deleted file mode 100644 index 91ea2b2..0000000 --- a/usr.sbin/sysinstall/system.c +++ /dev/null @@ -1,555 +0,0 @@ -/* - * The new sysinstall program. - * - * This is probably the last program in the `sysinstall' line - the next - * generation being essentially a complete rewrite. - * - * $FreeBSD$ - * - * Jordan Hubbard - * - * My contributions are in the public domain. - * - * Parts of this file are also blatantly stolen from Poul-Henning Kamp's - * previous version of sysinstall, and as such fall under his "BEERWARE license" - * so buy him a beer if you like it! Buy him a beer for me, too! - * Heck, get him completely drunk and send me pictures! :-) - */ - -#include "sysinstall.h" -#include <signal.h> -#include <termios.h> -#include <sys/param.h> -#include <sys/reboot.h> -#include <sys/consio.h> -#include <sys/fcntl.h> -#include <sys/ioctl.h> -#include <sys/mount.h> -#include <sys/stat.h> -#include <sys/sysctl.h> -#include <ufs/ufs/ufsmount.h> - - -/* Where we stick our temporary expanded doc file */ -#define DOC_TMP_DIR "/tmp/.doc" -#define DOC_TMP_FILE "/tmp/.doc/doc.tmp" - -static pid_t ehs_pid; - -/* - * Handle interrupt signals - this probably won't work in all cases - * due to our having bogotified the internal state of dialog or curses, - * but we'll give it a try. - */ -static int -intr_continue(dialogMenuItem *self) -{ - return DITEM_LEAVE_MENU; -} - -static int -intr_reboot(dialogMenuItem *self) -{ - systemShutdown(-1); - /* NOTREACHED */ - return 0; -} - -static int -intr_restart(dialogMenuItem *self) -{ - int ret, fd, fdmax; - char *arg; - - mediaClose(); - free_variables(); - fdmax = getdtablesize(); - for (fd = 3; fd < fdmax; fd++) - close(fd); - - if (RunningAsInit) - arg = "-restart -fakeInit"; - else - arg = "-restart"; - - ret = execl(StartName, StartName, arg, NULL); - msgDebug("execl failed (%s)\n", strerror(errno)); - /* NOTREACHED */ - return -1; -} - -static dialogMenuItem intrmenu[] = { - { "Abort", "Abort the installation", NULL, intr_reboot }, - { "Restart", "Restart the installation program", NULL, intr_restart }, - { "Continue", "Continue the installation", NULL, intr_continue }, -}; - - -static void -handle_intr(int sig) -{ - WINDOW *save = savescr(); - - use_helpline(NULL); - use_helpfile(NULL); - if (OnVTY) { - ioctl(0, VT_ACTIVATE, 1); /* Switch back */ - msgInfo(NULL); - } - (void)dialog_menu("Installation interrupt", - "Do you want to abort the installation?", - -1, -1, 3, -3, intrmenu, NULL, NULL, NULL); - restorescr(save); -} - -#if 0 -/* - * Harvest children if we are init. - */ -static void -reap_children(int sig) -{ - int errbak = errno; - - while (waitpid(-1, NULL, WNOHANG) > 0) - ; - errno = errbak; -} -#endif - -/* Expand a file into a convenient location, nuking it each time */ -static char * -expand(char *fname) -{ - char *unzipper = RunningAsInit ? "/stand/" UNZIPPER : "/usr/bin/" UNZIPPER; - - if (!directory_exists(DOC_TMP_DIR)) { - Mkdir(DOC_TMP_DIR); - if (chown(DOC_TMP_DIR, 0, 0) < 0) - return NULL; - if (chmod(DOC_TMP_DIR, S_IRWXU) < 0) - return NULL; - } - else - unlink(DOC_TMP_FILE); - if (!file_readable(fname) || vsystem("%s < %s > %s", unzipper, fname, - DOC_TMP_FILE)) - return NULL; - return DOC_TMP_FILE; -} - -/* Initialize system defaults */ -void -systemInitialize(int argc, char **argv) -{ - size_t i; - int boothowto; - sigset_t signalset; - - signal(SIGINT, SIG_IGN); - globalsInit(); - - i = sizeof(boothowto); - if (!sysctlbyname("debug.boothowto", &boothowto, &i, NULL, 0) && - (i == sizeof(boothowto)) && (boothowto & RB_VERBOSE)) - variable_set2(VAR_DEBUG, "YES", 0); - - /* Are we running as init? */ - if (RunningAsInit) { - struct ufs_args ufs_args; - int fd; - - setsid(); - close(0); - fd = open("/dev/ttyv0", O_RDWR); - if (fd == -1) { - fd = open("/dev/console", O_RDWR); /* fallback */ - variable_set2(VAR_FIXIT_TTY, "serial", 0); /* give fixit a hint */ - } else - OnVTY = TRUE; - /* - * To make _sure_ we're on a VTY and don't have /dev/console switched - * away to a serial port or something, attempt to set the cursor appearance. - */ - if (OnVTY) { - int fd2, type; - - type = 0; /* normal */ - if ((fd2 = open("/dev/console", O_RDWR)) != -1) { - if (ioctl(fd2, CONS_CURSORTYPE, &type) == -1) { - OnVTY = FALSE; - variable_set2(VAR_FIXIT_TTY, "serial", 0); /* Tell Fixit - the console - type */ - close(fd); close(fd2); - open("/dev/console", O_RDWR); - } - else - close(fd2); - } - } - close(1); dup(0); - close(2); dup(0); - printf("%s running as init on %s\n", argv[0], OnVTY ? "vty0" : "serial console"); - ioctl(0, TIOCSCTTY, (char *)NULL); - setlogin("root"); - setenv("PATH", "/stand:/bin:/sbin:/usr/sbin:/usr/bin:/mnt/bin:/mnt/sbin:/mnt/usr/sbin:/mnt/usr/bin", 1); - setbuf(stdin, 0); - setbuf(stderr, 0); -#if 0 - signal(SIGCHLD, reap_children); -#endif - memset(&ufs_args, 0, sizeof(ufs_args)); - mount("ufs", "/", MNT_UPDATE, &ufs_args); - } - else { - char hname[256]; - - /* Initalize various things for a multi-user environment */ - if (!gethostname(hname, sizeof hname)) - variable_set2(VAR_HOSTNAME, hname, 0); - } - - if (set_termcap() == -1) { - printf("Can't find terminal entry\n"); - exit(-1); - } - - /* XXX - libdialog has particularly bad return value checking */ - init_dialog(); - - /* If we haven't crashed I guess dialog is running ! */ - DialogActive = TRUE; - - /* Make sure HOME is set for those utilities that need it */ - if (!getenv("HOME")) - setenv("HOME", "/", 1); - signal(SIGINT, handle_intr); - /* - * Make sure we can be interrupted even if we were re-executed - * from an interrupt. - */ - sigemptyset(&signalset); - sigaddset(&signalset, SIGINT); - sigprocmask(SIG_UNBLOCK, &signalset, NULL); - - (void)vsystem("rm -rf %s", DOC_TMP_DIR); -} - -/* Close down and prepare to exit */ -void -systemShutdown(int status) -{ - /* If some media is open, close it down */ - if (status >=0) { - if (mediaDevice != NULL && mediaDevice->type == DEVICE_TYPE_CDROM) { - mediaClose(); - msgConfirm("Be sure to remove the media from the drive."); - } else - mediaClose(); - } - - /* write out any changes to rc.conf .. */ - configRC_conf(); - - /* Shut down the dialog library */ - if (DialogActive) { - end_dialog(); - DialogActive = FALSE; - } - - /* Shut down curses */ - endwin(); - - /* If we have a temporary doc dir lying around, nuke it */ - (void)vsystem("rm -rf %s", DOC_TMP_DIR); - - /* REALLY exit! */ - if (RunningAsInit) { - /* Put the console back */ - ioctl(0, VT_ACTIVATE, 2); -#if defined(__sparc64__) - reboot(RB_HALT); -#else - reboot(RB_AUTOBOOT); -#endif - } - else - exit(status); -} - -/* Run some general command */ -int -systemExecute(char *command) -{ - int status; - struct termios foo; - WINDOW *w = savescr(); - - dialog_clear(); - dialog_update(); - end_dialog(); - DialogActive = FALSE; - if (tcgetattr(0, &foo) != -1) { - foo.c_cc[VERASE] = '\010'; - tcsetattr(0, TCSANOW, &foo); - } - if (!Fake) - status = system(command); - else { - status = 0; - msgDebug("systemExecute: Faked execution of `%s'\n", command); - } - DialogActive = TRUE; - restorescr(w); - return status; -} - -/* suspend/resume libdialog/curses screen */ -static WINDOW *oldW; - -void -systemSuspendDialog(void) -{ - - oldW = savescr(); - dialog_clear(); - dialog_update(); - end_dialog(); - DialogActive = FALSE; -} - -void -systemResumeDialog(void) -{ - - DialogActive = TRUE; - restorescr(oldW); -} - -/* Display a help file in a filebox */ -int -systemDisplayHelp(char *file) -{ - char *fname = NULL; - char buf[FILENAME_MAX]; - int ret = 0; - WINDOW *w = savescr(); - - fname = systemHelpFile(file, buf); - if (!fname) { - snprintf(buf, FILENAME_MAX, "The %s file is not provided on this particular floppy image.", file); - use_helpfile(NULL); - use_helpline(NULL); - dialog_mesgbox("Sorry!", buf, -1, -1); - ret = 1; - } - else { - use_helpfile(NULL); - use_helpline(NULL); - dialog_textbox(file, fname, LINES, COLS); - } - restorescr(w); - return ret; -} - -char * -systemHelpFile(char *file, char *buf) -{ - if (!file) - return NULL; - if (file[0] == '/') - return file; - snprintf(buf, FILENAME_MAX, "/stand/help/%s.hlp.gz", file); - if (file_readable(buf)) - return expand(buf); - snprintf(buf, FILENAME_MAX, "/stand/help/%s.hlp", file); - if (file_readable(buf)) - return expand(buf); - snprintf(buf, FILENAME_MAX, "/stand/help/%s.TXT.gz", file); - if (file_readable(buf)) - return expand(buf); - snprintf(buf, FILENAME_MAX, "/stand/help/%s.TXT", file); - if (file_readable(buf)) - return expand(buf); - snprintf(buf, FILENAME_MAX, "/usr/src/usr.sbin/%s/help/%s.hlp", ProgName, - file); - if (file_readable(buf)) - return buf; - snprintf(buf, FILENAME_MAX, "/usr/src/usr.sbin/%s/help/%s.TXT", ProgName, - file); - if (file_readable(buf)) - return buf; - return NULL; -} - -void -systemChangeTerminal(char *color, const u_char c_term[], - char *mono, const u_char m_term[]) -{ - if (OnVTY) { - int setupterm(char *color, int, int *); - - if (ColorDisplay) { - setenv("TERM", color, 1); - setenv("TERMCAP", c_term, 1); - reset_shell_mode(); - setterm(color); - cbreak(); noecho(); - } - else { - setenv("TERM", mono, 1); - setenv("TERMCAP", m_term, 1); - reset_shell_mode(); - setterm(mono); - cbreak(); noecho(); - } - } - clear(); - refresh(); - dialog_clear(); -} - -int -vsystem(char *fmt, ...) -{ - va_list args; - int pstat; - pid_t pid; - int omask; - sig_t intsave, quitsave; - char *cmd; - int i; - struct stat sb; - - cmd = (char *)alloca(FILENAME_MAX); - cmd[0] = '\0'; - va_start(args, fmt); - vsnprintf(cmd, FILENAME_MAX, fmt, args); - va_end(args); - - omask = sigblock(sigmask(SIGCHLD)); - if (Fake) { - msgDebug("vsystem: Faked execution of `%s'\n", cmd); - return 0; - } - if (isDebug()) - msgDebug("Executing command `%s'\n", cmd); - pid = fork(); - if (pid == -1) { - (void)sigsetmask(omask); - i = 127; - } - else if (!pid) { /* Junior */ - (void)sigsetmask(omask); - if (DebugFD != -1) { - dup2(DebugFD, 0); - dup2(DebugFD, 1); - dup2(DebugFD, 2); - } - else { - close(1); open("/dev/null", O_WRONLY); - dup2(1, 2); - } - if (stat("/stand/sh", &sb) == 0) - execl("/stand/sh", "/stand/sh", "-c", cmd, (char *)NULL); - else - execl("/bin/sh", "/bin/sh", "-c", cmd, (char *)NULL); - exit(1); - } - else { - intsave = signal(SIGINT, SIG_IGN); - quitsave = signal(SIGQUIT, SIG_IGN); - pid = waitpid(pid, &pstat, 0); - (void)sigsetmask(omask); - (void)signal(SIGINT, intsave); - (void)signal(SIGQUIT, quitsave); - i = (pid == -1) ? -1 : WEXITSTATUS(pstat); - if (isDebug()) - msgDebug("Command `%s' returns status of %d\n", cmd, i); - } - return i; -} - -void -systemCreateHoloshell(void) -{ - int waitstatus; - - if ((FixItMode || OnVTY) && RunningAsInit) { - - if (ehs_pid != 0) { - int pstat; - - if (kill(ehs_pid, 0) == 0) { - - if (msgNoYes("There seems to be an emergency holographic shell\n" - "already running on VTY 4.\n\n" - "Kill it and start a new one?")) - return; - - /* try cleaning up as much as possible */ - (void) kill(ehs_pid, SIGHUP); - sleep(1); - (void) kill(ehs_pid, SIGKILL); - } - - /* avoid too many zombies */ - (void) waitpid(ehs_pid, &pstat, WNOHANG); - } - - if (strcmp(variable_get(VAR_FIXIT_TTY), "serial") == 0) - systemSuspendDialog(); /* must be before the fork() */ - if ((ehs_pid = fork()) == 0) { - int i, fd; - struct termios foo; - extern int login_tty(int); - - ioctl(0, TIOCNOTTY, NULL); - for (i = getdtablesize(); i >= 0; --i) - close(i); - if (strcmp(variable_get(VAR_FIXIT_TTY), "serial") == 0) - fd = open("/dev/console", O_RDWR); - else - fd = open("/dev/ttyv3", O_RDWR); - ioctl(0, TIOCSCTTY, &fd); - dup2(0, 1); - dup2(0, 2); - DebugFD = 2; - if (login_tty(fd) == -1) - msgDebug("Doctor: I can't set the controlling terminal.\n"); - signal(SIGTTOU, SIG_IGN); - if (tcgetattr(fd, &foo) != -1) { - foo.c_cc[VERASE] = '\010'; - if (tcsetattr(fd, TCSANOW, &foo) == -1) - msgDebug("Doctor: I'm unable to set the erase character.\n"); - } - else - msgDebug("Doctor: I'm unable to get the terminal attributes!\n"); - if (strcmp(variable_get(VAR_FIXIT_TTY), "serial") == 0) { - printf("Type ``exit'' in this fixit shell to resume sysinstall.\n\n"); - fflush(stdout); - } - execlp("sh", "-sh", NULL); - msgDebug("Was unable to execute sh for Holographic shell!\n"); - exit(1); - } - else { - if (strcmp(variable_get(VAR_FIXIT_TTY), "standard") == 0) { - WINDOW *w = savescr(); - - msgNotify("Starting an emergency holographic shell on VTY4"); - sleep(2); - restorescr(w); - } - else { - (void)waitpid(ehs_pid, &waitstatus, 0); /* we only wait for - shell to finish - in serial mode - since there is no - virtual console */ - systemResumeDialog(); - } - } - } -} |