Re: [PATCH v2 0/1] MR2074: ws2_32: Provide same address order from gethostbyname() on consequent calls.

[Jinoh Kang (＠iamahuman)]

Jinoh Kang (@iamahuman) commented about dlls/ws2_32/unixlib.c:
> +{
> - /* On Unix gethostbyname() may return IP addresses in random order on each call. On Windows the order of
> -
> * IP addresses is not determined as well but it is the same on consequent calls (changes after network
> -
> * resets and probably DNS timeout expiration).
> -
> * Life is Strange Remastered depends on gethostbyname() returning IP addresses in the same order to reuse
> -
> * the established TLS connection and avoid timeouts that happen in game when establishing multiple extra TLS
> -
> * connections.
> -
> * Just sorting the addresses would break server load balancing provided by gethostbyname(), so randomize the
> -
> * sort once per process. */
> - unsigned int count;
> -
> - pthread_once(&hash_init_once, init_hash);
> -
> - for (count = 0; host->h_addr_list[count]; ++count)
> -
>    ;
> - qsort_r( host->h_addr_list, count, sizeof(*host->h_addr_list), compare_addrs_hashed,

`qsort_r` is a glibc extension.  Note that `gethostbyname_r`'s usage is guarded by `#ifdef HAVE_LINUX_GETHOSTBYNAME_R_6`.