added new result code ISC_R_IGNORE, to be used

by the interface iterator internals to indicate that an
interface is to be ignored.  Previously ISC_R_FAILURE was
used for this purpose.

lib/isc/include/isc/result.h

@@ -61,8 +61,9 @@ ISC_LANG_BEGINDECLS
 #define ISC_R_QUOTA			33
 #define ISC_R_UNEXPECTED		34
 #define ISC_R_ALREADYRUNNING		35
+#define ISC_R_IGNORE			36
 
-#define ISC_R_NRESULTS 			36	/* Number of results */
+#define ISC_R_NRESULTS 			37	/* Number of results */
 
 char *			isc_result_totext(isc_result_t);
 isc_result_t		isc_result_register(unsigned int base,

lib/isc/result.c

@@ -76,6 +76,7 @@ static char *text[ISC_R_NRESULTS] = {
 	"quota reached",			/* 33 */
 	"unexpected error",			/* 34 */
 	"already running",			/* 35 */
+	"ignore"				/* 36 */
 };
 
 #define ISC_RESULT_RESULTSET			2