From 3163821967821518cfa4c4315f775ec5301bb023 Mon Sep 17 00:00:00 2001 From: Erik Andersen Date: Sat, 15 Jan 2000 22:28:50 +0000 Subject: Sync up busybox with the latest and greatest. This is not stuff for the Embedix release. -Erik --- init/init.c | 57 +++++++++++++++++++++++++++------------------------------ 1 file changed, 27 insertions(+), 30 deletions(-) (limited to 'init/init.c') diff --git a/init/init.c b/init/init.c index b4ab1c751..913436353 100644 --- a/init/init.c +++ b/init/init.c @@ -106,11 +106,11 @@ struct initActionTag { initAction* initActionList = NULL; -static char *console = _PATH_CONSOLE; static char *secondConsole = VT_SECONDARY; static char *log = VT_LOG; static int kernelVersion = 0; -static char *termType = NULL; +static char termType[32] = "TERM=ansi"; +static char console[32] = _PATH_CONSOLE; /* try to open up the specified device */ @@ -258,41 +258,37 @@ static void console_init() struct serial_struct sr; char *s; - if ((s = getenv("CONSOLE")) != NULL) { - termType = s; - } else { - termType = "TERM=vt100"; + if ((s = getenv("TERM")) != NULL) { + snprintf(termType,sizeof(termType)-1,"TERM=%s",s); } if ((s = getenv("CONSOLE")) != NULL) { - console = s; + snprintf(console, sizeof(console)-1, "%s",s); } #if #cpu(sparc) /* sparc kernel supports console=tty[ab] parameter which is also * passed to init, so catch it here */ - else if ((s = getenv("console")) != NULL) { + else if ((s = getenv("console")) != NULL) {*/ /* remap tty[ab] to /dev/ttyS[01] */ if (strcmp( s, "ttya" )==0) - console = SERIAL_CON0; + snprintf(console, sizeof(console)-1, "%s", SERIAL_CON0); else if (strcmp( s, "ttyb" )==0) - console = SERIAL_CON1; + snprintf(console, sizeof(console)-1, "%s", SERIAL_CON1); } #endif else { struct vt_stat vt; - static char the_console[13]; - console = the_console; /* 2.2 kernels: identify the real console backend and try to use it */ if (ioctl(0, TIOCGSERIAL, &sr) == 0) { /* this is a serial console */ - snprintf( the_console, sizeof the_console, "/dev/ttyS%d", sr.line ); + snprintf(console, sizeof(console)-1, "/dev/ttyS%d", sr.line); } else if (ioctl(0, VT_GETSTATE, &vt) == 0) { /* this is linux virtual tty */ - snprintf( the_console, sizeof the_console, "/dev/tty%d", vt.v_active ); + snprintf(console, sizeof(console)-1, "/dev/tty%d", vt.v_active); } else { - console = _PATH_CONSOLE; + snprintf(console, sizeof(console)-1, "%s", _PATH_CONSOLE); tried_devcons++; } } @@ -301,25 +297,25 @@ static void console_init() /* Can't open selected console -- try /dev/console */ if (!tried_devcons) { tried_devcons++; - console = _PATH_CONSOLE; + snprintf(console, sizeof(console)-1, "%s", _PATH_CONSOLE); continue; } /* Can't open selected console -- try vt1 */ if (!tried_vtprimary) { tried_vtprimary++; - console = VT_PRIMARY; + snprintf(console, sizeof(console)-1, "%s", VT_PRIMARY); continue; } break; } - if (fd < 0) + if (fd < 0) { /* Perhaps we should panic here? */ - console = "/dev/null"; - else { + snprintf(console, sizeof(console)-1, "/dev/null"); + } else { /* check for serial console and disable logging to tty3 & running a * shell to tty2 */ if (ioctl(0,TIOCGSERIAL,&sr) == 0) { - message(LOG|CONSOLE, "serial console detected. Disabling virtual terminals.\r\n", console ); + message(LOG|CONSOLE, "serial console detected. Disabling virtual terminals.\r\n" ); log = NULL; secondConsole = NULL; } @@ -337,15 +333,14 @@ static pid_t run(char* command, char* cmd[255]; static const char press_enter[] = "\nPlease press Enter to activate this console. "; - static char * environment[] = { + char* environment[] = { "HOME=/", "PATH=/usr/bin:/bin:/usr/sbin:/sbin", "SHELL=/bin/sh", - 0, + termType, "USER=root", 0 }; - environment[3]=termType; if ((pid = fork()) == 0) { @@ -389,24 +384,23 @@ static pid_t run(char* command, } /* Log the process name and args */ - message(LOG|CONSOLE, "Starting pid %d, console %s: '", + message(LOG, "Starting pid %d, console %s: '", shell_pgid, terminal, command); /* Convert command (char*) into cmd (char**, one word per string) */ for (tmpCmd=command, i=0; (tmpCmd=strsep(&command, " \t")) != NULL;) { if (*tmpCmd != '\0') { cmd[i] = tmpCmd; - message(LOG|CONSOLE, "%s ", tmpCmd); + message(LOG, "%s ", tmpCmd); tmpCmd++; i++; } } cmd[i] = NULL; - message(LOG|CONSOLE, "'\r\n"); + 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(cmd[0], cmd); execve(cmd[0], cmd, environment); /* We're still here? Some error happened. */ @@ -541,8 +535,8 @@ void new_initAction (initActionEnum action, } else strncpy(newAction->console, console, 255); newAction->pid = 0; - message(LOG|CONSOLE, "process='%s' action='%d' console='%s'\n", - newAction->process, newAction->action, newAction->console); +// message(LOG|CONSOLE, "process='%s' action='%d' console='%s'\n", +// newAction->process, newAction->action, newAction->console); } void delete_initAction (initAction *action) @@ -673,6 +667,9 @@ extern int init_main(int argc, char **argv) usage( "init\n\nInit is the parent of all processes.\n\n" "This version of init is designed to be run only by the kernel\n"); } + /* Fix up argv[0] to be certain we claim to be init */ + strncpy(argv[0], "init", strlen(argv[0])); + /* Set up sig handlers -- be sure to * clear all of these in run() */ signal(SIGUSR1, halt_signal); -- cgit v1.2.3