[Tarantool-patches] [PATCH] socket: better args handling for connect()/bind()

[Alexander Turenko]

Please, rebase your commits on recent master and apply comments below.

> socket: better args handling for connect()/bind()

I would say about validation rather then handling.

>
> Check args types in socket.connect() and socket.bind() functions.
> 'host' should be a string and 'port' should be a string or a
> number.
> 
> Part of #4138

It is better to place this commit before one that closes the issue.

> Branch: https://github.com/tarantool/tarantool/tree/romanhabibov/gh-4138-getaddrinfo
> Issue: https://github.com/tarantool/tarantool/issues/4138

> @@ -1569,7 +1570,8 @@ local function lsocket_connect(host, port)
>  end
>  
>  local function lsocket_bind(host, port, backlog)
> -    if host == nil or port == nil then
> +    if type(host) ~= 'string' or (type(port) ~= 'string' and
> +        type(port) ~= 'number') then

I would check backport against 'number' too (if it present).

> +socket.connect(127.0.0.1, 3301)
> +---
> +- error: '[string "socket.connect(127.0.0.1, 3301) "]:1: malformed number near ''127.0.0.1'''

Did you read this error? It is the parsing error from Lua interpreter.