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Rewrite DNS API from scratch into dedicated file(s)

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From a functional point of view, the main improvement is that GetIP() now always prioritizes IPv6 over IPv4.
The previous implementation always returned an IPv4 address, unless not available: in such case it failed.
This means that now connections to hostnames should be established via IPv6 if available.

From a programmer point of view, getting rid of the insane wrappers is enough to justify a complete rewrite.

As an extra, several unrelated unused global variables are removed.
This commit is contained in:
Davide Beatrici
2021-04-18 01:46:59 +02:00
parent f7e988ffc7
commit 0472f9c286
16 changed files with 702 additions and 1237 deletions
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5
src/Mayaqua/Proxy.c
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@ -3,6 +3,7 @@
// TODO: Mayaqua should not depend on Cedar.
#include "Cedar/WinUi.h"
#include "DNS.h"
#include "Memory.h"
#include "Str.h"
@ -550,8 +551,8 @@ UINT ProxySocks4Connect(PROXY_PARAM_OUT *out, PROXY_PARAM_IN *in, volatile bool
Zero(out, sizeof(PROXY_PARAM_OUT));
// Get the IP address of the destination server
if (GetIP(&target_ip, in->TargetHostname) == false)
// Get the IPv4 address of the destination server (SOCKS4 does not support IPv6).
if (GetIP4(&target_ip, in->TargetHostname) == false)
{
return PROXY_ERROR_CONNECTION;
}