[master] fix unchecked result

4295.	[bug]		An unchecked result in dns_message_pseudosectiontotext()
			could allow incorrect text formatting of EDNS EXPIRE
			options. [RT #41437]

CHANGES

+4295.	[bug]		An unchecked result in dns_message_pseudosectiontotext()
+			could allow incorrect text formatting of EDNS EXPIRE
+			options. [RT #41437]
+
 4294.	[bug]		Fixed a regression in which "rndc stop -p" failed
 			to print the PID. [RT #41513]
 

lib/dns/message.c

@@ -3388,7 +3388,11 @@ dns_message_pseudosectiontotext(dns_message_t *msg,
 					snprintf(buf, sizeof(buf), "%u", secs);
 					ADD_STRING(target, buf);
 					ADD_STRING(target, " (");
-					dns_ttl_totext(secs, ISC_TRUE, target);
+					result = dns_ttl_totext(secs,
+								ISC_TRUE,
+								target);
+					if (result != ISC_R_SUCCESS)
+						return (result);
 					ADD_STRING(target, ")\n");
 					continue;
 				}