check ptr is not NULL

diff --git a/bin/named/server.c b/bin/named/server.c
index 96db642c6be60bdb3e1c3752a4366119b64bbb7c..ee55db269328ea4a5a890ae0e282c07c8bc2c1a3 100644 (file)
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -9262,6 +9262,9 @@ ns_server_rekey(ns_server_t *server, isc_lex_t *lex, isc_buffer_t **text) {
        char *ptr;
 
        ptr = next_token(lex, text);
+       if (ptr == NULL)
+               return (ISC_R_UNEXPECTEDEND);
+
        if (strcasecmp(ptr, NS_COMMAND_SIGN) == 0)
                fullsign = ISC_TRUE;