mirror of
https://github.com/sheumann/hush.git
synced 2024-12-26 10:32:02 +00:00
Stuf
This commit is contained in:
Eric Andersen
parent
be971d6b69
commit
3ae0c78962
@ -9,6 +9,7 @@
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and much more solid.
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* Wrote sed -- weighs only 1.8k (5.8k with full regular expressions!).
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* Fixed a stupid seg-fault in sync
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* Fixed mount -- mount -a always mounted rw despite /etc/fstab ro entries.
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-Erik Andersen
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180
init.c
180
init.c
@ -41,10 +41,7 @@
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#include <sys/vt.h> /* for vt_stat */
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#include <sys/ioctl.h>
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/* Turn this on to debug init so it won't reboot when killed */
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//#define DEBUG_INIT
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#define CONSOLE "/dev/console" /* Logical system console */
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#define VT_CONSOLE "/dev/console" /* Logical system console */
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#define VT_PRIMARY "/dev/tty1" /* Primary virtual console */
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#define VT_SECONDARY "/dev/tty2" /* Virtual console */
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#define VT_LOG "/dev/tty3" /* Virtual console */
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@ -54,7 +51,9 @@
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#define INITSCRIPT "/etc/init.d/rcS" /* Initscript. */
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#define PATH_DEFAULT "PATH=/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin"
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static char *console = CONSOLE;
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#define LOG 0x1
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#define CONSOLE 0x2
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static char *console = VT_CONSOLE;
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static char *second_console = VT_SECONDARY;
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static char *log = VT_LOG;
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@ -73,44 +72,76 @@ int device_open(char *device, int mode)
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break;
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if (fd < 0)
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return fd;
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/* Set original flags. */
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/* Reset original flags. */
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if (m != mode)
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fcntl(fd, F_SETFL, mode);
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return fd;
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}
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/* print a message to the specified device */
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void message(char *device, char *fmt, ...)
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/* print a message to the specified device:
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* device may be bitwise-or'd from LOG | CONSOLE */
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void message(int device, char *fmt, ...)
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{
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int fd;
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static int log_fd=-1;
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va_list arguments;
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if ((fd = device_open(device, O_WRONLY|O_NOCTTY|O_NDELAY)) >= 0) {
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/* Take full control of the log tty, and never close it.
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* It's mine, all mine! Muhahahaha! */
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if (log_fd==-1) {
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if ((log_fd = device_open(log, O_RDWR|O_NDELAY)) < 0) {
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log_fd=-1;
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fprintf(stderr, "Bummer, can't write to log on %s!\r\n", log);
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fflush(stderr);
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return;
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}
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}
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if ( (device & LOG) && (log_fd != -1) ) {
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va_start(arguments, fmt);
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vdprintf(fd, fmt, arguments);
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va_end(arguments);
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close(fd);
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} else {
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fprintf(stderr, "Bummer, can't print: ");
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va_start(arguments, fmt);
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vfprintf(stderr, fmt, arguments);
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fflush(stderr);
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vdprintf(log_fd, fmt, arguments);
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va_end(arguments);
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}
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if (device & CONSOLE) {
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if ((fd = device_open(console, O_WRONLY|O_NOCTTY|O_NDELAY)) >= 0) {
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va_start(arguments, fmt);
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vdprintf(fd, fmt, arguments);
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va_end(arguments);
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close(fd);
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} else {
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fprintf(stderr, "Bummer, can't print: ");
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va_start(arguments, fmt);
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vfprintf(stderr, fmt, arguments);
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fflush(stderr);
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va_end(arguments);
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}
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}
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}
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/* Set terminal settings to reasonable defaults */
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void set_term( int fd)
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{
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struct termios tty;
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#if 0
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static const char control_characters[] = {
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'\003', '\034', '\177', '\025', '\004', '\0',
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'\1', '\0', '\021', '\023', '\032', '\0', '\022',
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'\017', '\027', '\026', '\0'
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};
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#endif
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static const char control_characters[] = {
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'\003', '\034', '\177', '\030', '\004', '\0',
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'\1', '\0', '\021', '\023', '\032', '\0', '\022',
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'\017', '\027', '\026', '\0'
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};
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tcgetattr(fd, &tty);
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/* Make it be sane */
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tty.c_cflag &= CBAUD|CBAUDEX|CSIZE|CSTOPB|PARENB|PARODD;
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tty.c_cflag |= HUPCL|CLOCAL;
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/* input modes */
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tty.c_iflag = IGNPAR|ICRNL|IXON|IXOFF|IXANY;
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@ -129,6 +160,44 @@ void set_term( int fd)
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tcsetattr(fd, TCSANOW, &tty);
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}
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/* Set terminal settings to reasonable defaults */
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void set_term_old( int fd)
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{
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struct termios tty;
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ioctl(fd, TCGETA, &tty);
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tty.c_cflag &= CBAUD|CBAUDEX|CSIZE|CSTOPB|PARENB|PARODD;
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tty.c_cflag |= HUPCL|CLOCAL;
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tty.c_cc[VINTR] = 3;
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tty.c_cc[VQUIT] = 28;
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tty.c_cc[VERASE] = 127;
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//tty.c_cc[VKILL] = 21;
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tty.c_cc[VKILL] = 24;
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tty.c_cc[VEOF] = 4;
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tty.c_cc[VTIME] = 0;
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tty.c_cc[VMIN] = 1;
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tty.c_cc[VSWTC] = 0;
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tty.c_cc[VSTART] = 17;
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tty.c_cc[VSTOP] = 19;
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tty.c_cc[VSUSP] = 26;
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tty.c_cc[VEOL] = 0;
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tty.c_cc[VREPRINT] = 18;
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tty.c_cc[VDISCARD] = 15;
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tty.c_cc[VWERASE] = 23;
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tty.c_cc[VLNEXT] = 22;
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tty.c_cc[VEOL2] = 0;
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tty.c_line = 0;
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tty.c_iflag = IGNPAR|ICRNL|IXON|IXOFF|IXANY;
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tty.c_oflag = OPOST|ONLCR;
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tty.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOPRT|ECHOKE|IEXTEN;
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ioctl(fd, TCSETA, &tty);
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}
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/* How much memory does this machine have? */
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static int mem_total()
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{
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@ -138,7 +207,7 @@ static int mem_total()
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const char pattern[] = "MemTotal:";
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if ((f = fopen(p, "r")) < 0) {
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message(log, "Error opening %s: %s\n", p, strerror( errno));
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message(LOG, "Error opening %s: %s\n", p, strerror( errno));
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return -1;
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}
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while (NULL != fgets(s, 79, f)) {
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@ -173,7 +242,7 @@ static void console_init()
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}
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#endif
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} else {
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console = CONSOLE;
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console = VT_CONSOLE;
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tried_devcons++;
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}
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@ -181,7 +250,7 @@ static void console_init()
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/* Can't open selected console -- try /dev/console */
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if (!tried_devcons) {
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tried_devcons++;
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console = CONSOLE;
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console = VT_CONSOLE;
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continue;
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}
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/* Can't open selected console -- try vt1 */
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@ -197,17 +266,17 @@ static void console_init()
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console = "/dev/null";
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else
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close(fd);
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message(log, "console=%s\n", console );
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message(LOG, "console=%s\n", console );
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}
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static int waitfor(int pid)
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{
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int status, wpid;
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message(log, "Waiting for process %d.\n", pid);
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message(LOG, "Waiting for process %d.\n", pid);
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while ((wpid = wait(&status)) != pid) {
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if (wpid > 0)
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message(log, "pid %d exited, status=%x.\n", wpid, status);
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message(LOG, "pid %d exited, status=0x%x.\n", wpid, status);
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}
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return wpid;
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}
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@ -236,7 +305,7 @@ static pid_t run(const char * const* command,
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signal(SIGTERM, SIG_DFL);
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if ((fd = device_open(terminal, O_RDWR)) < 0) {
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message(log, "Bummer, can't open %s\r\n", terminal);
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message(LOG, "Bummer, can't open %s\r\n", terminal);
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exit(-1);
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}
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dup(fd);
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@ -254,20 +323,22 @@ static pid_t run(const char * const* command,
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* specifies.
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*/
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char c;
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message(LOG, "Waiting for enter to start '%s' (pid %d, console %s)\r\n",
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*cmd, getpid(), terminal );
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write(1, press_enter, sizeof(press_enter) - 1);
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read(0, &c, 1);
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}
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/* Log the process name and args */
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message(log, "Starting pid(%d): '", getpid());
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while ( *cmd) message(log, "%s ", *cmd++);
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message(log, "'\r\n");
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message(LOG, "Starting pid %d, console %s: '", getpid(), terminal);
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while ( *cmd) message(LOG, "%s ", *cmd++);
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message(LOG, "'\r\n");
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/* Now run it. The new program will take over this PID,
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* so nothing further in init.c should be run. */
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execvp(*command, (char**)command+1);
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message(log, "Bummer, could not run '%s'\n", command);
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message(LOG, "Bummer, could not run '%s'\n", command);
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exit(-1);
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}
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return pid;
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@ -280,8 +351,6 @@ static void check_memory()
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struct stat statbuf;
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const char* const swap_on_cmd[] =
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{ "/bin/swapon", "swapon", "-a", 0};
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const char *no_memory =
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"Sorry, your computer does not have enough memory.\r\n";
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if (mem_total() > 3500)
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return;
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@ -296,7 +365,7 @@ static void check_memory()
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return;
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goodnight:
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message(console, "%s", no_memory);
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message(CONSOLE, "Sorry, your computer does not have enough memory.\r\n");
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while (1) sleep(1);
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}
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@ -305,41 +374,39 @@ static void shutdown_system(void)
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const char* const swap_off_cmd[] = { "swapoff", "swapoff", "-a", 0};
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const char* const umount_cmd[] = { "umount", "umount", "-a", "-n", 0};
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message(console, "The system is going down NOW !!\r\n");
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sync();
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#ifndef DEBUG_INIT
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/* Allow Ctrl-Alt-Del to reboot system. */
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reboot(RB_ENABLE_CAD);
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#endif
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message(CONSOLE, "The system is going down NOW !!\r\n");
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sync();
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/* Send signals to every process _except_ pid 1 */
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message(console, "Sending SIGHUP to all processes.\r\n");
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message(CONSOLE, "Sending SIGHUP to all processes.\r\n");
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#ifndef DEBUG_INIT
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kill(-1, SIGHUP);
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#endif
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sleep(2);
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sync();
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message(console, "Sending SIGKILL to all processes.\r\n");
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message(CONSOLE, "Sending SIGKILL to all processes.\r\n");
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#ifndef DEBUG_INIT
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kill(-1, SIGKILL);
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#endif
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sleep(1);
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waitfor(run( swap_off_cmd, log, FALSE));
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waitfor(run( umount_cmd, log, FALSE));
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waitfor(run( swap_off_cmd, console, FALSE));
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waitfor(run( umount_cmd, console, FALSE));
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sync();
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if (get_kernel_revision() <= 2 * 65536 + 2 * 256 + 11) {
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/* Removed bdflush call, kupdate in kernels >2.2.11 */
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bdflush(1, 0);
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sync();
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}
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bdflush(1, 0);
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}
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static void halt_signal(int sig)
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{
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shutdown_system();
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message(console,
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message(CONSOLE,
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"The system is halted. Press CTRL-ALT-DEL or turn off power\r\n");
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sync();
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#ifndef DEBUG_INIT
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reboot(RB_POWER_OFF);
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reboot(RB_HALT_SYSTEM);
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//reboot(RB_POWER_OFF);
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#endif
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exit(0);
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}
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@ -347,7 +414,8 @@ static void halt_signal(int sig)
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static void reboot_signal(int sig)
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{
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shutdown_system();
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message(console, "Please stand by while rebooting the system.\r\n");
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message(CONSOLE, "Please stand by while rebooting the system.\r\n");
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sync();
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#ifndef DEBUG_INIT
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reboot(RB_AUTOBOOT);
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#endif
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@ -410,22 +478,17 @@ extern int init_main(int argc, char **argv)
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/* Hello world */
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#ifndef DEBUG_INIT
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message(log, hello_msg_format, BB_VER, BB_BT);
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message(console, hello_msg_format, BB_VER, BB_BT);
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message(CONSOLE|LOG, hello_msg_format, BB_VER, BB_BT);
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#else
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message(log, hello_msg_format, getpid(), BB_VER, BB_BT);
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message(console, hello_msg_format, getpid(), BB_VER, BB_BT);
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message(CONSOLE|LOG, hello_msg_format, getpid(), BB_VER, BB_BT);
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#endif
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/* Mount /proc */
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if (mount ("proc", "/proc", "proc", 0, 0) == 0) {
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message(log, "Mounting /proc: done.\n");
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message(console, "Mounting /proc: done.\n");
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} else {
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message(log, "Mounting /proc: failed!\n");
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message(console, "Mounting /proc: failed!\n");
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}
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if (mount ("proc", "/proc", "proc", 0, 0) == 0)
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message(CONSOLE|LOG, "Mounting /proc: done.\n");
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else
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message(CONSOLE|LOG, "Mounting /proc: failed!\n");
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/* Make sure there is enough memory to do something useful. */
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check_memory();
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@ -453,12 +516,13 @@ extern int init_main(int argc, char **argv)
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}
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wpid = wait(&status);
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if (wpid > 0 ) {
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message(log, "pid %d exited, status=%x.\n", wpid, status);
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message(LOG, "pid %d exited, status=%x.\n", wpid, status);
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}
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if (wpid == pid1) {
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pid1 = 0;
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if (run_rc == TRUE) {
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/* Don't respawn init script if it exits. */
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/* Don't respawn init script if it exits,
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* Start a shell instead. */
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run_rc=FALSE;
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wait_for_enter=TRUE;
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tty0_commands=shell_commands;
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180
init/init.c
180
init/init.c
@ -41,10 +41,7 @@
|
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#include <sys/vt.h> /* for vt_stat */
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#include <sys/ioctl.h>
|
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|
||||
/* Turn this on to debug init so it won't reboot when killed */
|
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//#define DEBUG_INIT
|
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|
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#define CONSOLE "/dev/console" /* Logical system console */
|
||||
#define VT_CONSOLE "/dev/console" /* Logical system console */
|
||||
#define VT_PRIMARY "/dev/tty1" /* Primary virtual console */
|
||||
#define VT_SECONDARY "/dev/tty2" /* Virtual console */
|
||||
#define VT_LOG "/dev/tty3" /* Virtual console */
|
||||
@ -54,7 +51,9 @@
|
||||
#define INITSCRIPT "/etc/init.d/rcS" /* Initscript. */
|
||||
#define PATH_DEFAULT "PATH=/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin"
|
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|
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static char *console = CONSOLE;
|
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#define LOG 0x1
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#define CONSOLE 0x2
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static char *console = VT_CONSOLE;
|
||||
static char *second_console = VT_SECONDARY;
|
||||
static char *log = VT_LOG;
|
||||
|
||||
@ -73,44 +72,76 @@ int device_open(char *device, int mode)
|
||||
break;
|
||||
if (fd < 0)
|
||||
return fd;
|
||||
/* Set original flags. */
|
||||
/* Reset original flags. */
|
||||
if (m != mode)
|
||||
fcntl(fd, F_SETFL, mode);
|
||||
return fd;
|
||||
}
|
||||
|
||||
/* print a message to the specified device */
|
||||
void message(char *device, char *fmt, ...)
|
||||
/* print a message to the specified device:
|
||||
* device may be bitwise-or'd from LOG | CONSOLE */
|
||||
void message(int device, char *fmt, ...)
|
||||
{
|
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int fd;
|
||||
static int log_fd=-1;
|
||||
va_list arguments;
|
||||
|
||||
if ((fd = device_open(device, O_WRONLY|O_NOCTTY|O_NDELAY)) >= 0) {
|
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/* Take full control of the log tty, and never close it.
|
||||
* It's mine, all mine! Muhahahaha! */
|
||||
if (log_fd==-1) {
|
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if ((log_fd = device_open(log, O_RDWR|O_NDELAY)) < 0) {
|
||||
log_fd=-1;
|
||||
fprintf(stderr, "Bummer, can't write to log on %s!\r\n", log);
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fflush(stderr);
|
||||
return;
|
||||
}
|
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}
|
||||
|
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if ( (device & LOG) && (log_fd != -1) ) {
|
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va_start(arguments, fmt);
|
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vdprintf(fd, fmt, arguments);
|
||||
va_end(arguments);
|
||||
close(fd);
|
||||
} else {
|
||||
fprintf(stderr, "Bummer, can't print: ");
|
||||
va_start(arguments, fmt);
|
||||
vfprintf(stderr, fmt, arguments);
|
||||
fflush(stderr);
|
||||
vdprintf(log_fd, fmt, arguments);
|
||||
va_end(arguments);
|
||||
}
|
||||
if (device & CONSOLE) {
|
||||
if ((fd = device_open(console, O_WRONLY|O_NOCTTY|O_NDELAY)) >= 0) {
|
||||
va_start(arguments, fmt);
|
||||
vdprintf(fd, fmt, arguments);
|
||||
va_end(arguments);
|
||||
close(fd);
|
||||
} else {
|
||||
fprintf(stderr, "Bummer, can't print: ");
|
||||
va_start(arguments, fmt);
|
||||
vfprintf(stderr, fmt, arguments);
|
||||
fflush(stderr);
|
||||
va_end(arguments);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Set terminal settings to reasonable defaults */
|
||||
void set_term( int fd)
|
||||
{
|
||||
struct termios tty;
|
||||
#if 0
|
||||
static const char control_characters[] = {
|
||||
'\003', '\034', '\177', '\025', '\004', '\0',
|
||||
'\1', '\0', '\021', '\023', '\032', '\0', '\022',
|
||||
'\017', '\027', '\026', '\0'
|
||||
};
|
||||
#endif
|
||||
static const char control_characters[] = {
|
||||
'\003', '\034', '\177', '\030', '\004', '\0',
|
||||
'\1', '\0', '\021', '\023', '\032', '\0', '\022',
|
||||
'\017', '\027', '\026', '\0'
|
||||
};
|
||||
|
||||
tcgetattr(fd, &tty);
|
||||
|
||||
/* Make it be sane */
|
||||
tty.c_cflag &= CBAUD|CBAUDEX|CSIZE|CSTOPB|PARENB|PARODD;
|
||||
tty.c_cflag |= HUPCL|CLOCAL;
|
||||
|
||||
/* input modes */
|
||||
tty.c_iflag = IGNPAR|ICRNL|IXON|IXOFF|IXANY;
|
||||
|
||||
@ -129,6 +160,44 @@ void set_term( int fd)
|
||||
tcsetattr(fd, TCSANOW, &tty);
|
||||
}
|
||||
|
||||
/* Set terminal settings to reasonable defaults */
|
||||
void set_term_old( int fd)
|
||||
{
|
||||
struct termios tty;
|
||||
|
||||
ioctl(fd, TCGETA, &tty);
|
||||
|
||||
tty.c_cflag &= CBAUD|CBAUDEX|CSIZE|CSTOPB|PARENB|PARODD;
|
||||
tty.c_cflag |= HUPCL|CLOCAL;
|
||||
|
||||
tty.c_cc[VINTR] = 3;
|
||||
tty.c_cc[VQUIT] = 28;
|
||||
tty.c_cc[VERASE] = 127;
|
||||
//tty.c_cc[VKILL] = 21;
|
||||
tty.c_cc[VKILL] = 24;
|
||||
tty.c_cc[VEOF] = 4;
|
||||
tty.c_cc[VTIME] = 0;
|
||||
tty.c_cc[VMIN] = 1;
|
||||
tty.c_cc[VSWTC] = 0;
|
||||
tty.c_cc[VSTART] = 17;
|
||||
tty.c_cc[VSTOP] = 19;
|
||||
tty.c_cc[VSUSP] = 26;
|
||||
tty.c_cc[VEOL] = 0;
|
||||
tty.c_cc[VREPRINT] = 18;
|
||||
tty.c_cc[VDISCARD] = 15;
|
||||
tty.c_cc[VWERASE] = 23;
|
||||
tty.c_cc[VLNEXT] = 22;
|
||||
tty.c_cc[VEOL2] = 0;
|
||||
|
||||
|
||||
tty.c_line = 0;
|
||||
tty.c_iflag = IGNPAR|ICRNL|IXON|IXOFF|IXANY;
|
||||
tty.c_oflag = OPOST|ONLCR;
|
||||
tty.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOPRT|ECHOKE|IEXTEN;
|
||||
|
||||
ioctl(fd, TCSETA, &tty);
|
||||
}
|
||||
|
||||
/* How much memory does this machine have? */
|
||||
static int mem_total()
|
||||
{
|
||||
@ -138,7 +207,7 @@ static int mem_total()
|
||||
const char pattern[] = "MemTotal:";
|
||||
|
||||
if ((f = fopen(p, "r")) < 0) {
|
||||
message(log, "Error opening %s: %s\n", p, strerror( errno));
|
||||
message(LOG, "Error opening %s: %s\n", p, strerror( errno));
|
||||
return -1;
|
||||
}
|
||||
while (NULL != fgets(s, 79, f)) {
|
||||
@ -173,7 +242,7 @@ static void console_init()
|
||||
}
|
||||
#endif
|
||||
} else {
|
||||
console = CONSOLE;
|
||||
console = VT_CONSOLE;
|
||||
tried_devcons++;
|
||||
}
|
||||
|
||||
@ -181,7 +250,7 @@ static void console_init()
|
||||
/* Can't open selected console -- try /dev/console */
|
||||
if (!tried_devcons) {
|
||||
tried_devcons++;
|
||||
console = CONSOLE;
|
||||
console = VT_CONSOLE;
|
||||
continue;
|
||||
}
|
||||
/* Can't open selected console -- try vt1 */
|
||||
@ -197,17 +266,17 @@ static void console_init()
|
||||
console = "/dev/null";
|
||||
else
|
||||
close(fd);
|
||||
message(log, "console=%s\n", console );
|
||||
message(LOG, "console=%s\n", console );
|
||||
}
|
||||
|
||||
static int waitfor(int pid)
|
||||
{
|
||||
int status, wpid;
|
||||
|
||||
message(log, "Waiting for process %d.\n", pid);
|
||||
message(LOG, "Waiting for process %d.\n", pid);
|
||||
while ((wpid = wait(&status)) != pid) {
|
||||
if (wpid > 0)
|
||||
message(log, "pid %d exited, status=%x.\n", wpid, status);
|
||||
message(LOG, "pid %d exited, status=0x%x.\n", wpid, status);
|
||||
}
|
||||
return wpid;
|
||||
}
|
||||
@ -236,7 +305,7 @@ static pid_t run(const char * const* command,
|
||||
signal(SIGTERM, SIG_DFL);
|
||||
|
||||
if ((fd = device_open(terminal, O_RDWR)) < 0) {
|
||||
message(log, "Bummer, can't open %s\r\n", terminal);
|
||||
message(LOG, "Bummer, can't open %s\r\n", terminal);
|
||||
exit(-1);
|
||||
}
|
||||
dup(fd);
|
||||
@ -254,20 +323,22 @@ static pid_t run(const char * const* command,
|
||||
* specifies.
|
||||
*/
|
||||
char c;
|
||||
message(LOG, "Waiting for enter to start '%s' (pid %d, console %s)\r\n",
|
||||
*cmd, getpid(), terminal );
|
||||
write(1, press_enter, sizeof(press_enter) - 1);
|
||||
read(0, &c, 1);
|
||||
}
|
||||
|
||||
/* Log the process name and args */
|
||||
message(log, "Starting pid(%d): '", getpid());
|
||||
while ( *cmd) message(log, "%s ", *cmd++);
|
||||
message(log, "'\r\n");
|
||||
message(LOG, "Starting pid %d, console %s: '", getpid(), terminal);
|
||||
while ( *cmd) message(LOG, "%s ", *cmd++);
|
||||
message(LOG, "'\r\n");
|
||||
|
||||
/* Now run it. The new program will take over this PID,
|
||||
* so nothing further in init.c should be run. */
|
||||
execvp(*command, (char**)command+1);
|
||||
|
||||
message(log, "Bummer, could not run '%s'\n", command);
|
||||
message(LOG, "Bummer, could not run '%s'\n", command);
|
||||
exit(-1);
|
||||
}
|
||||
return pid;
|
||||
@ -280,8 +351,6 @@ static void check_memory()
|
||||
struct stat statbuf;
|
||||
const char* const swap_on_cmd[] =
|
||||
{ "/bin/swapon", "swapon", "-a", 0};
|
||||
const char *no_memory =
|
||||
"Sorry, your computer does not have enough memory.\r\n";
|
||||
|
||||
if (mem_total() > 3500)
|
||||
return;
|
||||
@ -296,7 +365,7 @@ static void check_memory()
|
||||
return;
|
||||
|
||||
goodnight:
|
||||
message(console, "%s", no_memory);
|
||||
message(CONSOLE, "Sorry, your computer does not have enough memory.\r\n");
|
||||
while (1) sleep(1);
|
||||
}
|
||||
|
||||
@ -305,41 +374,39 @@ static void shutdown_system(void)
|
||||
const char* const swap_off_cmd[] = { "swapoff", "swapoff", "-a", 0};
|
||||
const char* const umount_cmd[] = { "umount", "umount", "-a", "-n", 0};
|
||||
|
||||
message(console, "The system is going down NOW !!\r\n");
|
||||
sync();
|
||||
#ifndef DEBUG_INIT
|
||||
/* Allow Ctrl-Alt-Del to reboot system. */
|
||||
reboot(RB_ENABLE_CAD);
|
||||
#endif
|
||||
message(CONSOLE, "The system is going down NOW !!\r\n");
|
||||
sync();
|
||||
/* Send signals to every process _except_ pid 1 */
|
||||
message(console, "Sending SIGHUP to all processes.\r\n");
|
||||
message(CONSOLE, "Sending SIGHUP to all processes.\r\n");
|
||||
#ifndef DEBUG_INIT
|
||||
kill(-1, SIGHUP);
|
||||
#endif
|
||||
sleep(2);
|
||||
sync();
|
||||
message(console, "Sending SIGKILL to all processes.\r\n");
|
||||
message(CONSOLE, "Sending SIGKILL to all processes.\r\n");
|
||||
#ifndef DEBUG_INIT
|
||||
kill(-1, SIGKILL);
|
||||
#endif
|
||||
sleep(1);
|
||||
waitfor(run( swap_off_cmd, log, FALSE));
|
||||
waitfor(run( umount_cmd, log, FALSE));
|
||||
waitfor(run( swap_off_cmd, console, FALSE));
|
||||
waitfor(run( umount_cmd, console, FALSE));
|
||||
sync();
|
||||
if (get_kernel_revision() <= 2 * 65536 + 2 * 256 + 11) {
|
||||
/* Removed bdflush call, kupdate in kernels >2.2.11 */
|
||||
bdflush(1, 0);
|
||||
sync();
|
||||
}
|
||||
bdflush(1, 0);
|
||||
}
|
||||
|
||||
static void halt_signal(int sig)
|
||||
{
|
||||
shutdown_system();
|
||||
message(console,
|
||||
message(CONSOLE,
|
||||
"The system is halted. Press CTRL-ALT-DEL or turn off power\r\n");
|
||||
sync();
|
||||
#ifndef DEBUG_INIT
|
||||
reboot(RB_POWER_OFF);
|
||||
reboot(RB_HALT_SYSTEM);
|
||||
//reboot(RB_POWER_OFF);
|
||||
#endif
|
||||
exit(0);
|
||||
}
|
||||
@ -347,7 +414,8 @@ static void halt_signal(int sig)
|
||||
static void reboot_signal(int sig)
|
||||
{
|
||||
shutdown_system();
|
||||
message(console, "Please stand by while rebooting the system.\r\n");
|
||||
message(CONSOLE, "Please stand by while rebooting the system.\r\n");
|
||||
sync();
|
||||
#ifndef DEBUG_INIT
|
||||
reboot(RB_AUTOBOOT);
|
||||
#endif
|
||||
@ -410,22 +478,17 @@ extern int init_main(int argc, char **argv)
|
||||
|
||||
/* Hello world */
|
||||
#ifndef DEBUG_INIT
|
||||
message(log, hello_msg_format, BB_VER, BB_BT);
|
||||
message(console, hello_msg_format, BB_VER, BB_BT);
|
||||
message(CONSOLE|LOG, hello_msg_format, BB_VER, BB_BT);
|
||||
#else
|
||||
message(log, hello_msg_format, getpid(), BB_VER, BB_BT);
|
||||
message(console, hello_msg_format, getpid(), BB_VER, BB_BT);
|
||||
message(CONSOLE|LOG, hello_msg_format, getpid(), BB_VER, BB_BT);
|
||||
#endif
|
||||
|
||||
|
||||
/* Mount /proc */
|
||||
if (mount ("proc", "/proc", "proc", 0, 0) == 0) {
|
||||
message(log, "Mounting /proc: done.\n");
|
||||
message(console, "Mounting /proc: done.\n");
|
||||
} else {
|
||||
message(log, "Mounting /proc: failed!\n");
|
||||
message(console, "Mounting /proc: failed!\n");
|
||||
}
|
||||
if (mount ("proc", "/proc", "proc", 0, 0) == 0)
|
||||
message(CONSOLE|LOG, "Mounting /proc: done.\n");
|
||||
else
|
||||
message(CONSOLE|LOG, "Mounting /proc: failed!\n");
|
||||
|
||||
/* Make sure there is enough memory to do something useful. */
|
||||
check_memory();
|
||||
@ -453,12 +516,13 @@ extern int init_main(int argc, char **argv)
|
||||
}
|
||||
wpid = wait(&status);
|
||||
if (wpid > 0 ) {
|
||||
message(log, "pid %d exited, status=%x.\n", wpid, status);
|
||||
message(LOG, "pid %d exited, status=%x.\n", wpid, status);
|
||||
}
|
||||
if (wpid == pid1) {
|
||||
pid1 = 0;
|
||||
if (run_rc == TRUE) {
|
||||
/* Don't respawn init script if it exits. */
|
||||
/* Don't respawn init script if it exits,
|
||||
* Start a shell instead. */
|
||||
run_rc=FALSE;
|
||||
wait_for_enter=TRUE;
|
||||
tty0_commands=shell_commands;
|
||||
|
||||
25
mount.c
25
mount.c
@ -98,6 +98,7 @@ parse_mount_options ( char *options, unsigned long *flags, char *strflags)
|
||||
|
||||
while (f->name != 0) {
|
||||
if (strcasecmp (f->name, options) == 0) {
|
||||
|
||||
*flags &= f->and;
|
||||
*flags |= f->or;
|
||||
gotone=TRUE;
|
||||
@ -238,7 +239,7 @@ extern int mount_main (int argc, char **argv)
|
||||
flags &= ~MS_RDONLY;
|
||||
break;
|
||||
case 'a':
|
||||
all = 1;
|
||||
all = TRUE;
|
||||
break;
|
||||
case 'v':
|
||||
case 'h':
|
||||
@ -261,7 +262,8 @@ extern int mount_main (int argc, char **argv)
|
||||
argv++;
|
||||
}
|
||||
|
||||
if (all == 1) {
|
||||
if (all == TRUE) {
|
||||
long newFlags;
|
||||
struct mntent *m;
|
||||
FILE *f = setmntent ("/etc/fstab", "r");
|
||||
|
||||
@ -270,14 +272,17 @@ extern int mount_main (int argc, char **argv)
|
||||
exit( FALSE);
|
||||
}
|
||||
while ((m = getmntent (f)) != NULL) {
|
||||
// If the file system isn't noauto, and isn't mounted on /, mount
|
||||
// it
|
||||
if ((!strstr (m->mnt_opts, "noauto"))
|
||||
&& (m->mnt_dir[1] != '\0') && !((m->mnt_type[0] == 's')
|
||||
&& (m->mnt_type[1] == 'w'))
|
||||
&& !((m->mnt_type[0] == 'n') && (m->mnt_type[1] == 'f'))) {
|
||||
mount_one (m->mnt_fsname, m->mnt_dir, m->mnt_type, flags,
|
||||
m->mnt_opts);
|
||||
// If the file system isn't noauto, and isn't mounted on /,
|
||||
// and isn't swap or nfs, then mount it
|
||||
if ((!strstr (m->mnt_opts, "noauto")) &&
|
||||
(m->mnt_dir[1] != '\0') &&
|
||||
(!strstr (m->mnt_type, "swap")) &&
|
||||
(!strstr (m->mnt_type, "nfs")))
|
||||
{
|
||||
newFlags = flags;
|
||||
*string_flags = '\0';
|
||||
parse_mount_options(m->mnt_opts, &newFlags, string_flags);
|
||||
mount_one (m->mnt_fsname, m->mnt_dir, m->mnt_type, newFlags, string_flags);
|
||||
}
|
||||
}
|
||||
endmntent (f);
|
||||
|
||||
@ -98,6 +98,7 @@ parse_mount_options ( char *options, unsigned long *flags, char *strflags)
|
||||
|
||||
while (f->name != 0) {
|
||||
if (strcasecmp (f->name, options) == 0) {
|
||||
|
||||
*flags &= f->and;
|
||||
*flags |= f->or;
|
||||
gotone=TRUE;
|
||||
@ -238,7 +239,7 @@ extern int mount_main (int argc, char **argv)
|
||||
flags &= ~MS_RDONLY;
|
||||
break;
|
||||
case 'a':
|
||||
all = 1;
|
||||
all = TRUE;
|
||||
break;
|
||||
case 'v':
|
||||
case 'h':
|
||||
@ -261,7 +262,8 @@ extern int mount_main (int argc, char **argv)
|
||||
argv++;
|
||||
}
|
||||
|
||||
if (all == 1) {
|
||||
if (all == TRUE) {
|
||||
long newFlags;
|
||||
struct mntent *m;
|
||||
FILE *f = setmntent ("/etc/fstab", "r");
|
||||
|
||||
@ -270,14 +272,17 @@ extern int mount_main (int argc, char **argv)
|
||||
exit( FALSE);
|
||||
}
|
||||
while ((m = getmntent (f)) != NULL) {
|
||||
// If the file system isn't noauto, and isn't mounted on /, mount
|
||||
// it
|
||||
if ((!strstr (m->mnt_opts, "noauto"))
|
||||
&& (m->mnt_dir[1] != '\0') && !((m->mnt_type[0] == 's')
|
||||
&& (m->mnt_type[1] == 'w'))
|
||||
&& !((m->mnt_type[0] == 'n') && (m->mnt_type[1] == 'f'))) {
|
||||
mount_one (m->mnt_fsname, m->mnt_dir, m->mnt_type, flags,
|
||||
m->mnt_opts);
|
||||
// If the file system isn't noauto, and isn't mounted on /,
|
||||
// and isn't swap or nfs, then mount it
|
||||
if ((!strstr (m->mnt_opts, "noauto")) &&
|
||||
(m->mnt_dir[1] != '\0') &&
|
||||
(!strstr (m->mnt_type, "swap")) &&
|
||||
(!strstr (m->mnt_type, "nfs")))
|
||||
{
|
||||
newFlags = flags;
|
||||
*string_flags = '\0';
|
||||
parse_mount_options(m->mnt_opts, &newFlags, string_flags);
|
||||
mount_one (m->mnt_fsname, m->mnt_dir, m->mnt_type, newFlags, string_flags);
|
||||
}
|
||||
}
|
||||
endmntent (f);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user