Abort on invalid format

There is no way we can guess the width of the argument when we cannot
infer its type from the format specifier.

1 files changed, 1 insertions, 3 deletions

diff --git a/hiredis.c b/hiredis.c
index 83218cd..dfee705 100644
--- a/hiredis.c
+++ b/hiredis.c
@@ -826,10 +826,8 @@ int redisvFormatCommand(char **target, const char *format, va_list ap) {
                     }
 
                 fmt_invalid:
-                    /* Consume and discard vararg */
-                    va_arg(ap,void);
                     va_end(_cpy);
-                    break;
+                    goto err;
 
                 fmt_valid:
                     _l = (_p+1)-c;