silence clang

diff --git a/bin/dig/nslookup.c b/bin/dig/nslookup.c
index e61de912b2f794ffc193e99c74b97d64b1a1d2d7..bbabf0e0f5c3ab6155b8627cbc2994c23e5bb908 100644 (file)
--- a/bin/dig/nslookup.c
+++ b/bin/dig/nslookup.c
@@ -901,7 +901,7 @@ parse_args(int argc, char **argv) {
        bool have_lookup = false;
 
        usesearch = true;
-       for (argc--, argv++; argc > 0; argc--, argv++) {
+       for (argc--, argv++; argc > 0 && argv[0] != NULL; argc--, argv++) {
                debug("main parsing %s", argv[0]);
                if (argv[0][0] == '-') {
                        if (strncasecmp(argv[0], "-ver", 4) == 0) {