Remove sysvinit specific code.

The runlevels shutdown, reboot, sysinit and single should be called by
init(8) and shutdown(8) and not manually.
sysvinit users will have to add sulogin to their inittab to secure the
console.

1 files changed, 47 insertions, 138 deletions

diff --git a/src/rc/rc.c b/src/rc/rc.c
index f268bcb6..a6aa5dbb 100644
--- a/src/rc/rc.c
+++ b/src/rc/rc.c
@@ -82,9 +82,6 @@ const char rc_copyright[] = "Copyright (c) 2007-2008 Roy Marples";
 
 #define DEVBOOT			"/dev/.rcboot"
 
-static char *RUNLEVEL = NULL;
-static char *PREVLEVEL = NULL;
-
 const char *applet = NULL;
 static char *runlevel = NULL;
 static RC_STRINGLIST *hotplugged_services = NULL;
@@ -250,12 +247,6 @@ static bool want_interactive(void)
 	if (rc_yesno(getenv("EINFO_QUIET")))
 		return false;
 
-	if (PREVLEVEL &&
-	    strcmp(PREVLEVEL, "N") != 0 &&
-	    strcmp(PREVLEVEL, "S") != 0 &&
-	    strcmp(PREVLEVEL, "1") != 0)
-		return false;
-
 	if (! gotinteractive) {
 		gotinteractive = true;
 		interactive = rc_conf_yesno("rc_interactive");
@@ -334,13 +325,6 @@ static void sulogin(bool cont)
 
 	if (! cont) {
 		rc_logger_close();
-#ifdef __linux__
-		if (RUNLEVEL && strcmp(RUNLEVEL, "S") == 0) {
-			execl("/sbin/sulogin", "/sbin/sulogin", (char *) NULL);
-			eerrorx("%s: unable to exec `/sbin/sulogin': %s",
-				applet, strerror(errno));
-		}
-#endif
 		exit(EXIT_SUCCESS);
 	}
 
@@ -493,15 +477,6 @@ static void handle_signal(int sig)
 		/* Notify plugins we are aborting */
 		rc_plugin_run(RC_HOOK_ABORT, NULL);
 
-		/* Only drop into single user mode if we're booting */
-		if ((PREVLEVEL &&
-		     (strcmp(PREVLEVEL, "S") == 0 ||
-		      strcmp(PREVLEVEL, "1") == 0)) ||
-		    (RUNLEVEL &&
-		     (strcmp(RUNLEVEL, "S") == 0 ||
-		      strcmp(RUNLEVEL, "1") == 0)))
-			single_user();
-
 		exit(EXIT_FAILURE);
 		/* NOTREACHED */
 
@@ -513,94 +488,49 @@ static void handle_signal(int sig)
 	errno = serrno;
 }
 
-static void do_newlevel(const char *newlevel)
+static void
+do_sysinit()
 {
 	struct utsname uts;
 	const char *sys;
 
-	if (strcmp(newlevel, RC_LEVEL_SYSINIT) == 0
-#ifndef PREFIX
-	    && RUNLEVEL &&
-	    (strcmp(RUNLEVEL, "S") == 0 ||
-	     strcmp(RUNLEVEL, "1") == 0)
-#endif
-	   )
-	{
-		/* OK, we're either in runlevel 1 or single user mode */
-
-		/* exec init-early.sh if it exists
-		 * This should just setup the console to use the correct
-		 * font. Maybe it should setup the keyboard too? */
-		if (exists(INITEARLYSH))
-			run_program(INITEARLYSH);
-
-		uname(&uts);
-		printf("\n   %sOpenRC %s" VERSION "%s is starting up %s",
-		       ecolor(ECOLOR_GOOD), ecolor(ECOLOR_HILITE),
-		       ecolor(ECOLOR_NORMAL), ecolor(ECOLOR_BRACKET));
+	/* exec init-early.sh if it exists
+	 * This should just setup the console to use the correct
+	 * font. Maybe it should setup the keyboard too? */
+	if (exists(INITEARLYSH))
+		run_program(INITEARLYSH);
+
+	uname(&uts);
+	printf("\n   %sOpenRC %s" VERSION "%s is starting up %s",
+	       ecolor(ECOLOR_GOOD), ecolor(ECOLOR_HILITE),
+	       ecolor(ECOLOR_NORMAL), ecolor(ECOLOR_BRACKET));
 #ifdef BRANDING
-		printf(BRANDING " (%s)", uts.machine);
+	printf(BRANDING " (%s)", uts.machine);
 #else
-		printf("%s %s (%s)",
-		       uts.sysname,
-		       uts.release,
-		       uts.machine);
+	printf("%s %s (%s)",
+	       uts.sysname,
+	       uts.release,
+	       uts.machine);
 #endif
 
-		if ((sys = rc_sys()))
-			printf(" [%s]", sys);
+	if ((sys = rc_sys()))
+		printf(" [%s]", sys);
 
-		printf("%s\n\n", ecolor(ECOLOR_NORMAL));
+	printf("%s\n\n", ecolor(ECOLOR_NORMAL));
 
-		if (! rc_yesno(getenv ("EINFO_QUIET")) &&
-		    rc_conf_yesno("rc_interactive"))
-			printf("Press %sI%s to enter interactive boot mode\n\n",
-			       ecolor(ECOLOR_GOOD), ecolor(ECOLOR_NORMAL));
+	if (! rc_yesno(getenv ("EINFO_QUIET")) &&
+	    rc_conf_yesno("rc_interactive"))
+		printf("Press %sI%s to enter interactive boot mode\n\n",
+		       ecolor(ECOLOR_GOOD), ecolor(ECOLOR_NORMAL));
 
-		setenv("RC_RUNLEVEL", newlevel, 1);
-		run_program(INITSH);
-
-		/* init may have mounted /proc so we can now detect or real
-		 * sys */
-		if ((sys = rc_sys()))
-			setenv("RC_SYS", sys, 1);
-	} else if (strcmp(newlevel, RC_LEVEL_SINGLE) == 0) {
-#ifndef PREFIX
-		if (! RUNLEVEL ||
-		    (strcmp(RUNLEVEL, "S") != 0 &&
-		     strcmp(RUNLEVEL, "1") != 0))
-		{
-			set_krunlevel(runlevel);
-			single_user();
-		}
-#endif
-	} else if (strcmp(newlevel, RC_LEVEL_REBOOT) == 0) {
-		if (! RUNLEVEL ||
-		    strcmp(RUNLEVEL, "6") != 0)
-		{
-			rc_logger_close();
-			execl(SHUTDOWN, SHUTDOWN, "-r", "now", (char *) NULL);
-			eerrorx("%s: unable to exec `" SHUTDOWN "': %s",
-				applet, strerror(errno));
-		}
-	} else if (strcmp(newlevel, RC_LEVEL_SHUTDOWN) == 0) {
-		if (! RUNLEVEL ||
-		    strcmp(RUNLEVEL, "0") != 0)
-		{
-			rc_logger_close();
-			execl(SHUTDOWN, SHUTDOWN,
-#ifdef __linux__
-			      "-h",
-#else
-			      "-p",
-#endif
-			      "now", (char *) NULL);
-			eerrorx("%s: unable to exec `" SHUTDOWN "': %s",
-				applet, strerror(errno));
-		}
-	}
-}
+	setenv("RC_RUNLEVEL", RC_LEVEL_SYSINIT, 1);
+	run_program(INITSH);
 
+	/* init may have mounted /proc so we can now detect or real
+	 * sys */
+	if ((sys = rc_sys()))
+		setenv("RC_SYS", sys, 1);
+}
 
 static bool runlevel_config(const char *service, const char *level)
 {
@@ -849,11 +779,6 @@ int main(int argc, char **argv)
 	/* Change dir to / to ensure all scripts don't use stuff in pwd */
 	chdir("/");
 
-	/* RUNLEVEL is set by sysvinit as is a magic number
-	 * RC_RUNLEVEL is set by us and is the name for this magic number */
-	RUNLEVEL = getenv("RUNLEVEL");
-	PREVLEVEL = getenv("PREVLEVEL");
-
 	/* Ensure our environment is pure
 	 * Also, add our configuration to it */
 	env_filter();
@@ -914,37 +839,24 @@ int main(int argc, char **argv)
 
 	rc_plugin_load();
 
-	/* Check we're in the runlevel requested, ie from
-	 * rc single
-	 * rc shutdown
-	 * rc reboot
-	 */
-	if (newlevel)
-		do_newlevel(newlevel);
+	/* Run any special sysinit foo */
+	if (newlevel && strcmp(newlevel, RC_LEVEL_SYSINIT) == 0)
+		do_sysinit();
 
 	/* Now we start handling our children */
 	signal_setup(SIGCHLD, handle_signal);
 
 	/* We should only use krunlevel if we were in single user mode
 	 * If not, we need to erase krunlevel now. */
-	if (PREVLEVEL &&
-	    (strcmp(PREVLEVEL, "1") == 0 ||
-	     strcmp(PREVLEVEL, "S") == 0 ||
-	     strcmp(PREVLEVEL, "N") == 0))
-	{
+	if (strcmp(runlevel, RC_LEVEL_SINGLE) == 0) {
 		/* Try not to join boot and krunlevels together */
 		if (! newlevel ||
 		    (strcmp(newlevel, getenv("RC_BOOTLEVEL")) != 0 &&
 		     strcmp(newlevel, RC_LEVEL_SYSINIT) != 0))
 			if (get_krunlevel(krunlevel, sizeof(krunlevel)))
 				newlevel = krunlevel;
-	} else if (! RUNLEVEL ||
-		   (strcmp(RUNLEVEL, "1") != 0 &&
-		    strcmp(RUNLEVEL, "S") != 0 &&
-		    strcmp(RUNLEVEL, "N") != 0))
-	{
+	} else
 		set_krunlevel(NULL);
-	}
 
 	if (newlevel &&
 	    (strcmp(newlevel, RC_LEVEL_REBOOT) == 0 ||
@@ -952,6 +864,7 @@ int main(int argc, char **argv)
 	     strcmp(newlevel, RC_LEVEL_SINGLE) == 0))
 	{
 		going_down = true;
+		set_krunlevel(runlevel);
 		rc_runlevel_set(newlevel);
 		setenv("RC_RUNLEVEL", newlevel, 1);
 		setenv("RC_GOINGDOWN", "YES", 1);
@@ -1095,13 +1008,11 @@ int main(int argc, char **argv)
 
 #ifdef __linux__
 	/* mark any services skipped as started */
-	if (PREVLEVEL && strcmp(PREVLEVEL, "N") == 0) {
-		proc = p = proc_getent("noinitd");
-		if (proc) {
-			while ((token = strsep(&p, ",")))
-				rc_service_mark(token, RC_SERVICE_STARTED);
-			free(proc);
-		}
+	proc = p = proc_getent("noinitd");
+	if (proc) {
+		while ((token = strsep(&p, ",")))
+			rc_service_mark(token, RC_SERVICE_STARTED);
+		free(proc);
 	}
 #endif
 
@@ -1118,13 +1029,11 @@ int main(int argc, char **argv)
 
 #ifdef __linux__
 	/* mark any services skipped as stopped */
-	if (PREVLEVEL && strcmp(PREVLEVEL, "N") == 0) {
-		proc = p = proc_getent("noinitd");
-		if (proc) {
-			while ((token = strsep(&p, ",")))
-				rc_service_mark(token, RC_SERVICE_STOPPED);
-			free(proc);
-		}
+	proc = p = proc_getent("noinitd");
+	if (proc) {
+		while ((token = strsep(&p, ",")))
+			rc_service_mark(token, RC_SERVICE_STOPPED);
+		free(proc);
 	}
 #endif