#include <string.h>
#include <termios.h>
#include <unistd.h>
-#include <asm/types.h>
-#include <linux/serial.h> /* for serial_struct */
-#include <linux/version.h>
-#include <linux/reboot.h>
-#include <linux/unistd.h>
-#include <linux/vt.h> /* for vt_stat */
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
# include <sys/syslog.h>
#endif
+#define bb_need_full_version
+#define BB_DECLARE_EXTERN
+#include "messages.c"
+
+/* From <linux/vt.h> */
+struct vt_stat {
+ unsigned short v_active; /* active vt */
+ unsigned short v_signal; /* signal to send */
+ unsigned short v_state; /* vt bitmask */
+};
+#define VT_GETSTATE 0x5603 /* get global vt state info */
+
+/* From <linux/serial.h> */
+struct serial_struct {
+ int type;
+ int line;
+ int port;
+ int irq;
+ int flags;
+ int xmit_fifo_size;
+ int custom_divisor;
+ int baud_base;
+ unsigned short close_delay;
+ char reserved_char[2];
+ int hub6;
+ unsigned short closing_wait; /* time to wait before closing */
+ unsigned short closing_wait2; /* no longer used... */
+ int reserved[4];
+};
+
+
#ifndef RB_HALT_SYSTEM
#define RB_HALT_SYSTEM 0xcdef0123
#include <sys/time.h>
#endif
-#ifndef KERNEL_VERSION
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-#endif
#if defined(__GLIBC__)
#include <sys/kdaemon.h>
#define VT_PRIMARY "/dev/tty1" /* Primary virtual console */
#define VT_SECONDARY "/dev/tty2" /* Virtual console */
-#define VT_LOG "/dev/tty3" /* Virtual console */
+#define VT_THIRD "/dev/tty3" /* Virtual console */
+#define VT_FOURTH "/dev/tty4" /* Virtual console */
+#define VT_LOG "/dev/tty5" /* Virtual console */
#define SERIAL_CON0 "/dev/ttyS0" /* Primary serial console */
#define SERIAL_CON1 "/dev/ttyS1" /* Serial console */
-#define SHELL "/bin/sh" /* Default shell */
+#define SHELL "-/bin/sh" /* Default shell */
#define INITTAB "/etc/inittab" /* inittab file location */
#ifndef INIT_SCRIPT
#define INIT_SCRIPT "/etc/init.d/rcS" /* Default sysinit script. */
{"wait", WAIT},
{"once", ONCE},
{"ctrlaltdel", CTRLALTDEL},
- {0}
+ {0, 0}
};
/* Set up a linked list of initActions, to be read from inittab */
static char *secondConsole = VT_SECONDARY;
+static char *thirdConsole = VT_THIRD;
+static char *fourthConsole = VT_FOURTH;
static char *log = VT_LOG;
static int kernelVersion = 0;
static char termType[32] = "TERM=linux";
}
}
-#define CTRLCHAR(ch) ((ch)-0x40)
-
/* Set terminal settings to reasonable defaults */
void set_term(int fd)
{
tcgetattr(fd, &tty);
/* set control chars */
- tty.c_cc[VINTR] = CTRLCHAR('C'); /* Ctrl-C */
- tty.c_cc[VQUIT] = CTRLCHAR('\\'); /* Ctrl-\ */
- tty.c_cc[VERASE] = CTRLCHAR('?'); /* Ctrl-? */
- tty.c_cc[VKILL] = CTRLCHAR('U'); /* Ctrl-U */
- tty.c_cc[VEOF] = CTRLCHAR('D'); /* Ctrl-D */
- tty.c_cc[VSTART] = CTRLCHAR('Q'); /* Ctrl-Q */
- tty.c_cc[VSTOP] = CTRLCHAR('S'); /* Ctrl-S */
- tty.c_cc[VSUSP] = CTRLCHAR('Z'); /* Ctrl-Z */
+ tty.c_cc[VINTR] = 3; /* C-c */
+ tty.c_cc[VQUIT] = 28; /* C-\ */
+ tty.c_cc[VERASE] = 127; /* C-? */
+ tty.c_cc[VKILL] = 21; /* C-u */
+ tty.c_cc[VEOF] = 4; /* C-d */
+ tty.c_cc[VSTART] = 17; /* C-q */
+ tty.c_cc[VSTOP] = 19; /* C-s */
+ tty.c_cc[VSUSP] = 26; /* C-z */
/* use line dicipline 0 */
tty.c_line = 0;
printf("Error checking free memory: %s\n", strerror(errno));
return -1;
}
+ /* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */
if (info.mem_unit==0) {
- /* Looks like we have a kernel prior to Linux 2.4.x */
- info.mem_unit=1024;
- info.totalram/=info.mem_unit;
- info.totalswap/=info.mem_unit;
- } else {
- /* Bah. Linux 2.4.x completely changed sysinfo. This can in theory
- overflow a 32 bit unsigned long, but who puts more then 4GiB ram+swap
- on an embedded system? */
- info.mem_unit/=1024;
- info.totalram*=info.mem_unit;
- info.totalswap*=info.mem_unit;
+ info.mem_unit=1;
}
-
+ info.mem_unit*=1024;
+
+ /* Note: These values can in theory overflow a 32 bit unsigned long (i.e.
+ * mem >= Gib), but who puts more then 4GiB ram+swap on an embedded
+ * system? */
+ info.totalram/=info.mem_unit;
+ info.totalswap/=info.mem_unit;
return(info.totalram+info.totalswap);
}
/* Perhaps we should panic here? */
snprintf(console, sizeof(console) - 1, "/dev/null");
} else {
- /* check for serial console and disable logging to tty3 & running a
- * shell to tty2 */
+ /* check for serial console and disable logging to tty5 & running a
+ * shell to tty2-4 */
if (ioctl(0, TIOCGSERIAL, &sr) == 0) {
log = NULL;
secondConsole = NULL;
+ thirdConsole = NULL;
+ fourthConsole = NULL;
/* Force the TERM setting to vt102 for serial console --
* iff TERM is set to linux (the default) */
if (strcmp( termType, "TERM=linux" ) == 0)
int i, fd;
pid_t pid;
char *tmpCmd;
- char *cmd[255];
+ char *cmd[255], *cmdpath;
char buf[255];
static const char press_enter[] =
0
};
-
if ((pid = fork()) == 0) {
/* Clean up */
+ ioctl(0, TIOCNOTTY, 0);
close(0);
close(1);
close(2);
dup2(fd, 0);
dup2(fd, 1);
dup2(fd, 2);
- ioctl(0, TIOCSCTTY, 0);
+ ioctl(0, TIOCSCTTY, 1);
tcsetpgrp(0, getpgrp());
set_term(0);
* be allowed to start a shell or whatever an init script
* specifies.
*/
- char c;
#ifdef DEBUG_INIT
pid_t shell_pgid = getpid();
message(LOG, "Waiting for enter to start '%s' (pid %d, console %s)\r\n",
command, shell_pgid, terminal);
#endif
write(fileno(stdout), press_enter, sizeof(press_enter) - 1);
- read(fileno(stdin), &c, 1);
+ getc(stdin);
}
#ifdef DEBUG_INIT
cmd[i] = NULL;
}
+ cmdpath = cmd[0];
+
+ /*
+ Interactive shells want to see a dash in argv[0]. This
+ typically is handled by login, argv will be setup this
+ way if a dash appears at the front of the command path
+ (like "-/bin/sh").
+ */
+
+ if (*cmdpath == '-') {
+ char *s;
+
+ /* skip over the dash */
+ ++cmdpath;
+
+ /* find the last component in the command pathname */
+ s = get_last_path_component(cmdpath);
+
+ /* make a new argv[0] */
+ if ((cmd[0] = malloc(strlen(s)+2)) == NULL) {
+ message(LOG | CONSOLE, "malloc failed");
+ cmd[0] = cmdpath;
+ } else {
+ cmd[0][0] = '-';
+ strcpy(cmd[0]+1, s);
+ }
+ }
+
#if defined BB_FEATURE_INIT_COREDUMPS
{
struct stat sb;
/* Now run it. The new program will take over this PID,
* so nothing further in init.c should be run. */
- execve(cmd[0], cmd, environment);
+ execve(cmdpath, cmd, environment);
- /* We're still here? Some error happened. */
- message(LOG | CONSOLE, "Bummer, could not run '%s': %s\n", cmd[0],
- strerror(errno));
+ /* We're still here? Some error happened. */
+ message(LOG | CONSOLE, "Bummer, could not run '%s': %s\n", cmdpath,
+ strerror(errno));
exit(-1);
}
return pid;
run_lastAction();
sync();
- if (kernelVersion > 0 && kernelVersion <= 2 * 65536 + 2 * 256 + 11) {
+ if (kernelVersion > 0 && kernelVersion <= KERNEL_VERSION(2,2,11)) {
/* bdflush, kupdate not needed for kernels >2.2.11 */
bdflush(1, 0);
sync();
/* allow time for last message to reach serial console */
sleep(2);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
- if (sig == SIGUSR2)
+ if (sig == SIGUSR2 && kernelVersion >= KERNEL_VERSION(2,2,0))
init_reboot(RB_POWER_OFF);
else
-#endif
init_reboot(RB_HALT_SYSTEM);
exit(0);
}
/* No inittab file -- set up some default behavior */
#endif
/* Swapoff on halt/reboot */
- new_initAction(CTRLALTDEL, "/sbin/swapoff -a > /dev/null 2>&1", console);
+ new_initAction(CTRLALTDEL, "/sbin/swapoff -a", console);
/* Umount all filesystems on halt/reboot */
- new_initAction(CTRLALTDEL, "/bin/umount -a -r > /dev/null 2>&1", console);
+ new_initAction(CTRLALTDEL, "/bin/umount -a -r", console);
/* Askfirst shell on tty1 */
new_initAction(ASKFIRST, SHELL, console);
/* Askfirst shell on tty2 */
if (secondConsole != NULL)
new_initAction(ASKFIRST, SHELL, secondConsole);
+ /* Askfirst shell on tty3 */
+ if (thirdConsole != NULL)
+ new_initAction(ASKFIRST, SHELL, thirdConsole);
+ /* Askfirst shell on tty4 */
+ if (fourthConsole != NULL)
+ new_initAction(ASKFIRST, SHELL, fourthConsole);
/* sysinit */
new_initAction(SYSINIT, INIT_SCRIPT, console);
/* Expect to be invoked as init with PID=1 or be invoked as linuxrc */
if (getpid() != 1
#ifdef BB_FEATURE_LINUXRC
- && strstr(argv[0], "linuxrc") == NULL
+ && strstr(applet_name, "linuxrc") == NULL
#endif
)
{
CONSOLE|
#endif
LOG,
- "init started: BusyBox v%s (%s) multi-call binary\r\n",
- BB_VER, BB_BT);
+ "init started: %s\r\n", full_version);
#else
message(
#if ! defined BB_FEATURE_EXTRA_QUIET
CONSOLE|
#endif
LOG,
- "init(%d) started: BusyBox v%s (%s) multi-call binary\r\n",
- getpid(), BB_VER, BB_BT);
+ "init(%d) started: %s\r\n", getpid(), full_version);
#endif
/* Check if we are supposed to be in single user mode */
if (argc > 1 && (!strcmp(argv[1], "single") ||
!strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) {
- /* Ask first then start a shell on tty2 */
+ /* Ask first then start a shell on tty2-4 */
if (secondConsole != NULL)
new_initAction(ASKFIRST, SHELL, secondConsole);
+ if (thirdConsole != NULL)
+ new_initAction(ASKFIRST, SHELL, thirdConsole);
+ if (fourthConsole != NULL)
+ new_initAction(ASKFIRST, SHELL, fourthConsole);
/* Start a shell on tty1 */
new_initAction(RESPAWN, SHELL, console);
} else {
projects / oweals / busybox.git / blobdiff