Vendor import of BIND 9.6-ESV-R7vendor/bind9/9.6-ESV-R7

2 files changed, 21 insertions, 5 deletions

diff --git a/lib/isccfg/api b/lib/isccfg/api
index ae9fbaedc545..d15c78ebe60d 100644
--- a/lib/isccfg/api
+++ b/lib/isccfg/api
@@ -4,5 +4,5 @@
 # 9.8: 80-89
 # 9.9: 90-109
 LIBINTERFACE = 50
-LIBREVISION = 4
+LIBREVISION = 6
 LIBAGE = 0
diff --git a/lib/isccfg/parser.c b/lib/isccfg/parser.c
index 8bb563a1b742..3d02379447e0 100644
--- a/lib/isccfg/parser.c
+++ b/lib/isccfg/parser.c
@@ -2203,16 +2203,30 @@ cfg_parser_warning(cfg_parser_t *pctx, unsigned int flags, const char *fmt, ...)
 
 #define MAX_LOG_TOKEN 30 /* How much of a token to quote in log messages. */
 
+static isc_boolean_t
+have_current_file(cfg_parser_t *pctx) {
+	cfg_listelt_t *elt;
+	if (pctx->open_files == NULL)
+		return (ISC_FALSE);
+
+	elt = ISC_LIST_TAIL(pctx->open_files->value.list);
+	if (elt == NULL)
+	      return (ISC_FALSE);
+
+	return (ISC_TRUE);
+}
+
 static char *
 current_file(cfg_parser_t *pctx) {
 	static char none[] = "none";
 	cfg_listelt_t *elt;
 	cfg_obj_t *fileobj;
 
-	if (pctx->open_files == NULL)
+	if (!have_current_file(pctx))
 		return (none);
+
 	elt = ISC_LIST_TAIL(pctx->open_files->value.list);
-	if (elt == NULL)
+	if (elt == NULL)	/* shouldn't be possible, but... */
 	      return (none);
 
 	fileobj = elt->obj;
@@ -2235,8 +2249,10 @@ parser_complain(cfg_parser_t *pctx, isc_boolean_t is_warning,
 	if (is_warning)
 		level = ISC_LOG_WARNING;
 
-	snprintf(where, sizeof(where), "%s:%u: ",
-		 current_file(pctx), pctx->line);
+	where[0] = '\0';
+	if (have_current_file(pctx))
+		snprintf(where, sizeof(where), "%s:%u: ",
+			 current_file(pctx), pctx->line);
 
 	len = vsnprintf(message, sizeof(message), format, args);
 	if (len >= sizeof(message))