Unit test for exptilde

plugins/sudoers/exptilde.c

@@ -74,7 +74,7 @@ expand_tilde(char **path, const char *user)
 	    *slash = '\0';
 	    opath = slash + 1;
 	} else {
-	    opath = NULL;
+	    opath = "";
 	}
     }
     pw = sudo_getpwnam(user);
@@ -86,8 +86,7 @@ expand_tilde(char **path, const char *user)
 	debug_return_bool(false);
     }
 
-    len = asprintf(&npath, "%s%s%s", pw->pw_dir, opath ? "/" : "",
-	opath ? opath : "");
+    len = asprintf(&npath, "%s%s%s", pw->pw_dir, slash ? "/" : "", opath);
     sudo_pw_delref(pw);
     if (len == -1) {
 	sudo_warnx(U_("%s: %s"), __func__, U_("unable to allocate memory"));