Sync up busybox with the latest and greatest. This is not stuff for
the Embedix release. -Erik
This commit is contained in:
Erik Andersen
57
init.c
57
init.c
@@ -106,11 +106,11 @@ struct initActionTag {
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initAction* initActionList = NULL;
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static char *console = _PATH_CONSOLE;
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static char *secondConsole = VT_SECONDARY;
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static char *log = VT_LOG;
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static int kernelVersion = 0;
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static char *termType = NULL;
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static char termType[32] = "TERM=ansi";
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static char console[32] = _PATH_CONSOLE;
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/* try to open up the specified device */
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@@ -258,41 +258,37 @@ static void console_init()
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struct serial_struct sr;
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char *s;
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if ((s = getenv("CONSOLE")) != NULL) {
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termType = s;
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} else {
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termType = "TERM=vt100";
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if ((s = getenv("TERM")) != NULL) {
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snprintf(termType,sizeof(termType)-1,"TERM=%s",s);
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}
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if ((s = getenv("CONSOLE")) != NULL) {
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console = s;
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snprintf(console, sizeof(console)-1, "%s",s);
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}
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#if #cpu(sparc)
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/* sparc kernel supports console=tty[ab] parameter which is also
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* passed to init, so catch it here */
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else if ((s = getenv("console")) != NULL) {
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else if ((s = getenv("console")) != NULL) {*/
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/* remap tty[ab] to /dev/ttyS[01] */
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if (strcmp( s, "ttya" )==0)
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console = SERIAL_CON0;
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snprintf(console, sizeof(console)-1, "%s", SERIAL_CON0);
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else if (strcmp( s, "ttyb" )==0)
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console = SERIAL_CON1;
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snprintf(console, sizeof(console)-1, "%s", SERIAL_CON1);
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}
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#endif
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else {
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struct vt_stat vt;
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static char the_console[13];
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console = the_console;
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/* 2.2 kernels: identify the real console backend and try to use it */
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if (ioctl(0, TIOCGSERIAL, &sr) == 0) {
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/* this is a serial console */
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snprintf( the_console, sizeof the_console, "/dev/ttyS%d", sr.line );
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snprintf(console, sizeof(console)-1, "/dev/ttyS%d", sr.line);
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}
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else if (ioctl(0, VT_GETSTATE, &vt) == 0) {
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/* this is linux virtual tty */
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snprintf( the_console, sizeof the_console, "/dev/tty%d", vt.v_active );
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snprintf(console, sizeof(console)-1, "/dev/tty%d", vt.v_active);
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} else {
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console = _PATH_CONSOLE;
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snprintf(console, sizeof(console)-1, "%s", _PATH_CONSOLE);
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tried_devcons++;
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}
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}
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@@ -301,25 +297,25 @@ 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 = _PATH_CONSOLE;
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snprintf(console, sizeof(console)-1, "%s", _PATH_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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if (!tried_vtprimary) {
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tried_vtprimary++;
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console = VT_PRIMARY;
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snprintf(console, sizeof(console)-1, "%s", VT_PRIMARY);
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continue;
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}
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break;
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}
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if (fd < 0)
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if (fd < 0) {
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/* Perhaps we should panic here? */
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console = "/dev/null";
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else {
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snprintf(console, sizeof(console)-1, "/dev/null");
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} else {
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/* check for serial console and disable logging to tty3 & running a
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* shell to tty2 */
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if (ioctl(0,TIOCGSERIAL,&sr) == 0) {
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message(LOG|CONSOLE, "serial console detected. Disabling virtual terminals.\r\n", console );
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message(LOG|CONSOLE, "serial console detected. Disabling virtual terminals.\r\n" );
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log = NULL;
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secondConsole = NULL;
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}
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@@ -337,15 +333,14 @@ static pid_t run(char* command,
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char* cmd[255];
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static const char press_enter[] =
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"\nPlease press Enter to activate this console. ";
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static char * environment[] = {
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char* environment[] = {
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"HOME=/",
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"PATH=/usr/bin:/bin:/usr/sbin:/sbin",
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"SHELL=/bin/sh",
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0,
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termType,
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"USER=root",
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0
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};
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environment[3]=termType;
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if ((pid = fork()) == 0) {
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@@ -389,24 +384,23 @@ static pid_t run(char* command,
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}
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/* Log the process name and args */
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message(LOG|CONSOLE, "Starting pid %d, console %s: '",
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message(LOG, "Starting pid %d, console %s: '",
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shell_pgid, terminal, command);
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/* Convert command (char*) into cmd (char**, one word per string) */
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for (tmpCmd=command, i=0; (tmpCmd=strsep(&command, " \t")) != NULL;) {
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if (*tmpCmd != '\0') {
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cmd[i] = tmpCmd;
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message(LOG|CONSOLE, "%s ", tmpCmd);
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message(LOG, "%s ", tmpCmd);
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tmpCmd++;
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i++;
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}
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}
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cmd[i] = NULL;
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message(LOG|CONSOLE, "'\r\n");
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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(cmd[0], cmd);
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execve(cmd[0], cmd, environment);
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/* We're still here? Some error happened. */
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@@ -541,8 +535,8 @@ void new_initAction (initActionEnum action,
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} else
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strncpy(newAction->console, console, 255);
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newAction->pid = 0;
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message(LOG|CONSOLE, "process='%s' action='%d' console='%s'\n",
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newAction->process, newAction->action, newAction->console);
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// message(LOG|CONSOLE, "process='%s' action='%d' console='%s'\n",
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// newAction->process, newAction->action, newAction->console);
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}
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void delete_initAction (initAction *action)
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@@ -673,6 +667,9 @@ extern int init_main(int argc, char **argv)
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usage( "init\n\nInit is the parent of all processes.\n\n"
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"This version of init is designed to be run only by the kernel\n");
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}
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/* Fix up argv[0] to be certain we claim to be init */
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strncpy(argv[0], "init", strlen(argv[0]));
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/* Set up sig handlers -- be sure to
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* clear all of these in run() */
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signal(SIGUSR1, halt_signal);
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