Address infinite loop on EOF.

diff --git a/fuzz/isc_lex_getmastertoken.c b/fuzz/isc_lex_getmastertoken.c
index a9beb7d681dff0d2c453a49e62677817ba8dd567..2649dd0cfbf9ef2521d6bab5d0109ddf1e93446d 100644 (file)
--- a/fuzz/isc_lex_getmastertoken.c
+++ b/fuzz/isc_lex_getmastertoken.c
@@ -47,6 +47,7 @@ int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
        isc_buffer_t buf;
        isc_result_t result;
+       isc_token_t token;
        isc_tokentype_t expect;
        bool eol;
 
@@ -69,9 +70,8 @@ LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
        CHECK(isc_lex_openbuffer(lex, &buf));
 
        do {
-               isc_token_t token;
                result = isc_lex_getmastertoken(lex, &token, expect, eol);
-       } while (result == ISC_R_SUCCESS);
+       } while (result == ISC_R_SUCCESS && token.type != isc_tokentype_eof);
 
        return (0);
 }