Tito writes: If the gecos field of an user is empty, obscure reports a false "similar...

diff --git a/libbb/obscure.c b/libbb/obscure.c
index 1112e11..3353df9 100644 (file)
--- a/libbb/obscure.c
+++ b/libbb/obscure.c
@@ -109,7 +109,7 @@ static const char *obscure_msg(const char *old_p, const char *new_p, const struc
                return "similar to username";
        }
        /* no gecos as-is, as sub-string, reversed, capitalized, doubled */
-       if (string_checker(new_p, pw->pw_gecos)) {
+       if (*pw->pw_gecos && string_checker(new_p, pw->pw_gecos)) {
                return "similar to gecos";
        }
        /* hostname as-is, as sub-string, reversed, capitalized, doubled */