busybox 1.18.3: add patches for klogd and menuconfig

--- busybox-1.18.3/sysklogd/klogd.c

+++ busybox-1.18.3-klogd/sysklogd/klogd.c

@@ -150,12 +150,41 @@ int klogd_main(int argc UNUSED_PARAM, ch

 	 */

 	klogd_open();

 	openlog("kernel", 0, LOG_KERN);

+	/*

+	 * glibc problem: for some reason, glibc changes LOG_KERN to LOG_USER

+	 * above. The logic behind this is that standard

+	 * http://pubs.opengroup.org/onlinepubs/9699919799/functions/syslog.html

+	 * says the following about openlog and syslog:

+	 * "LOG_USER

+	 *  Messages generated by arbitrary processes.

+	 *  This is the default facility identifier if none is specified."

+	 *

+	 * I believe glibc misinterpreted this text as "if openlog's

+	 * third parameter is 0 (=LOG_KERN), treat it as LOG_USER".

+	 * Whereas it was meant to say "if *syslog* is called with facility

+	 * 0 in its 1st parameter without prior call to openlog, then perform

+	 * implicit openlog(LOG_USER)".

+	 *

+	 * As a result of this, eh, feature, standard klogd was forced

+	 * to open-code its own openlog and syslog implementation (!).

+	 *

+	 * Note that prohibiting openlog(LOG_KERN) on libc level does not

+	 * add any security: any process can open a socket to "/dev/log"

+	 * and write a string "<0>Voila, a LOG_KERN + LOG_EMERG message"

+	 *

+	 * Google code search tells me there is no widespread use of

+	 * openlog("foo", 0, 0), thus fixing glibc won't break userspace.

+	 *

+	 * The bug against glibc was filed:

+	 * bugzilla.redhat.com/show_bug.cgi?id=547000

+	 */

 	if (i)

 		klogd_setloglevel(i);

-	bb_signals(BB_FATAL_SIGS, record_signo);

 	signal(SIGHUP, SIG_IGN);

+	/* We want klogd_read to not be restarted, thus _norestart: */

+	bb_signals_recursive_norestart(BB_FATAL_SIGS, record_signo);

 	syslog(LOG_NOTICE, "klogd started: %s", bb_banner);

--- busybox-1.18.3/scripts/kconfig/mconf.c

+++ busybox-1.18.3-menuconfig/scripts/kconfig/mconf.c

@@ -256,7 +256,7 @@ search_help[] = N_(

 	"          USB$ => find all CONFIG_ symbols ending with USB\n"

 	"\n");

-static char buf[4096], *bufptr = buf;

+static char buf[4096*10], *bufptr = buf;

 static char input_buf[4096];

 static const char filename[] = ".config";

 static char *args[1024], **argptr = args;