simplify decode_l_va()

src/vmod_blobcode.c

@@ -136,18 +136,14 @@ static inline size_t
 decode_l_va(enum encoding dec, const char * const p, va_list ap)
 {
 	size_t len = 0;
-	const char *next;
 
-	if (p == vrt_magic_string_end)
-		return 0;
-	if (p != NULL)
-		len = strlen(p);
+	AENC(dec);
 
-	while ((next = va_arg(ap, const char *)) != vrt_magic_string_end)
-		if (next != NULL)
-			len += strlen(next);
+	for (const char *s = p; s != vrt_magic_string_end;
+	     s = va_arg(ap, const char *))
+		if (s != NULL && *s != '\0')
+			len += strlen(s);
 
-	AENC(dec);
 	return(func[dec].decode_l(len));
 }