back port parse_rdata fix to handle NULL commandline

diff --git a/bin/nsupdate/nsupdate.c b/bin/nsupdate/nsupdate.c
index 298f3a1dbac564838ea65f146d097e9f1d0d8121..5f25d3c68848be9da45cba70e5a0a280cbcfb0d3 100644 (file)
--- a/bin/nsupdate/nsupdate.c
+++ b/bin/nsupdate/nsupdate.c
@@ -1044,6 +1044,11 @@ parse_rdata(char **cmdlinep, dns_rdataclass_t rdataclass,
        dns_rdatacallbacks_t callbacks;
        isc_result_t result;
 
+       if (cmdline == NULL) {
+               rdata->flags = DNS_RDATA_UPDATE;
+               return (STATUS_MORE);
+       }
+
        while (*cmdline != 0 && isspace((unsigned char)*cmdline))
                cmdline++;