Code cleanups for tor_addr_parse()

src/lib/net/address.c

@@ -1189,13 +1189,13 @@ tor_addr_parse(tor_addr_t *addr, const char *src)
   struct in6_addr in6_tmp;
   int brackets_detected = 0;
 
+  tor_assert(addr && src);
+
   size_t len = strlen(src);
 
-  tor_assert(addr && src);
-  if (src[0] == '[' && src[1] && src[len - 1] == ']') {
+  if (len && src[0] == '[' && src[len - 1] == ']') {
     brackets_detected = 1;
     src = tmp = tor_strndup(src+1, strlen(src)-2);
-    len -= 2;
   }
 
   if (tor_inet_pton(AF_INET6, src, &in6_tmp) > 0) {