don't "overflow" debug levels (ITS#6324)

include/ldap_log.h

@@ -123,7 +123,7 @@ LDAP_BEGIN_DECL
 #define LDAP_DEBUG_SYNC		0x4000
 
 #define LDAP_DEBUG_NONE		0x8000
-#define LDAP_DEBUG_ANY		-1
+#define LDAP_DEBUG_ANY		((unsigned long)-1)
 
 /* debugging stuff */
 #ifdef LDAP_DEBUG

servers/slapd/bconfig.c

@@ -3051,7 +3051,7 @@ static int
 loglevel_init( void )
 {
 	slap_verbmasks	lo[] = {
-		{ BER_BVC("Any"),	-1 },
+		{ BER_BVC("Any"),	LDAP_DEBUG_ANY },
 		{ BER_BVC("Trace"),	LDAP_DEBUG_TRACE },
 		{ BER_BVC("Packets"),	LDAP_DEBUG_PACKETS },
 		{ BER_BVC("Args"),	LDAP_DEBUG_ARGS },

servers/slapd/main.c

@@ -270,7 +270,18 @@ parse_debug_level( const char *arg, int *levelp, char ***unknowns )
 		ldap_charray_free( levels );
 
 	} else {
-		if ( lutil_atoix( &level, arg, 0 ) != 0 ) {
+		int rc;
+
+		if ( arg[0] == '-' ) {
+			rc = lutil_atoix( &level, arg, 0 );
+		} else {
+			unsigned ulevel;
+
+			rc = lutil_atoux( &ulevel, arg, 0 );
+			level = (int)ulevel;
+		}
+
+		if ( rc ) {
 			fprintf( stderr,
 				"unrecognized log level "
 				"\"%s\"\n", arg );