From b72344c6e4562326d139cc67058c4e076b7572c8 Mon Sep 17 00:00:00 2001
From: Isaac <62234577+Isaac0-dev@users.noreply.github.com>
Date: Sat, 26 Feb 2022 15:05:21 +1000
Subject: [PATCH] Added Domain Resolution (#134)

Automatically converts domains to IPs
---
 src/pc/djui/djui_panel_join.c      | 15 +++----------
 src/pc/network/socket/domain_res.c | 34 ++++++++++++++++++++++++++++++
 src/pc/network/socket/socket.c     |  1 +
 src/pc/network/socket/socket.h     |  1 +
 4 files changed, 39 insertions(+), 12 deletions(-)
 create mode 100644 src/pc/network/socket/domain_res.c

diff --git a/src/pc/djui/djui_panel_join.c b/src/pc/djui/djui_panel_join.c
index 3002e4f0..a5cb5752 100644
--- a/src/pc/djui/djui_panel_join.c
+++ b/src/pc/djui/djui_panel_join.c
@@ -72,6 +72,7 @@ static bool djui_panel_join_ip_parse_port(char** msg) {
 
 static bool djui_panel_join_ip_valid(char* buffer) {
     char** msg = &buffer;
+
     if (!djui_panel_join_ip_parse_numbers(msg)) { return false; }
     if (!djui_panel_join_ip_parse_period(msg))  { return false; }
     if (!djui_panel_join_ip_parse_numbers(msg)) { return false; }
@@ -86,15 +87,6 @@ static bool djui_panel_join_ip_valid(char* buffer) {
     return (**msg == '\0');
 }
 
-static void djui_panel_join_ip_text_change(struct DjuiBase* caller) {
-    struct DjuiInputbox* inputbox1 = (struct DjuiInputbox*)caller;
-    if (djui_panel_join_ip_valid(inputbox1->buffer)) {
-        djui_inputbox_set_text_color(inputbox1, 0, 0, 0, 255);
-    } else {
-        djui_inputbox_set_text_color(inputbox1, 255, 0, 0, 255);
-    }
-}
-
 static void djui_panel_join_ip_text_set_new(void) {
     char buffer[256] = { 0 };
     snprintf(buffer, 256, "%s", sInputboxIp->buffer);
@@ -136,11 +128,11 @@ static void djui_panel_join_ip_text_set(struct DjuiInputbox* inputbox1) {
 }
 
 void djui_panel_join_do_join(struct DjuiBase* caller) {
-    if (!djui_panel_join_ip_valid(sInputboxIp->buffer)) {
+    if (!(strlen(sInputboxIp->buffer) > 0)) { 
         djui_interactable_set_input_focus(&sInputboxIp->base);
         djui_inputbox_select_all(sInputboxIp);
         return;
-    }
+     }
     djui_panel_join_ip_text_set_new();
     network_set_system(NS_SOCKET);
     network_init(NT_CLIENT);
@@ -183,7 +175,6 @@ void djui_panel_join_create(struct DjuiBase* caller) {
         struct DjuiInputbox* inputbox1 = djui_inputbox_create(&body->base, 256);
         djui_base_set_size_type(&inputbox1->base, DJUI_SVT_RELATIVE, DJUI_SVT_ABSOLUTE);
         djui_base_set_size(&inputbox1->base, 1.0f, 32.0f);
-        djui_interactable_hook_value_change(&inputbox1->base, djui_panel_join_ip_text_change);
         sInputboxIp = inputbox1;
         djui_panel_join_ip_text_set(inputbox1);
 
diff --git a/src/pc/network/socket/domain_res.c b/src/pc/network/socket/domain_res.c
new file mode 100644
index 00000000..fb57c486
--- /dev/null
+++ b/src/pc/network/socket/domain_res.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include "socket.h"
+#include "pc/configfile.h"
+#include "pc/debuglog.h"
+#include "pc/djui/djui.h"
+#ifdef WINSOCK
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#else
+#include <netdb.h>
+#endif
+
+
+void domain_resolution(void) {
+  struct in_addr addr;
+  char *host_name;
+  struct hostent *remoteHost;
+  char* domainname = "";
+  host_name = configJoinIp;
+  if (host_name == NULL) {
+	  return;
+  }
+  int i = 0;
+  remoteHost = gethostbyname(host_name);
+  i = 0;
+  if (remoteHost->h_addrtype == AF_INET) {
+
+    while (remoteHost->h_addr_list[i] != 0) {
+          addr.s_addr = *(u_long *) remoteHost->h_addr_list[i++];
+          domainname = inet_ntoa(addr);
+          snprintf(configJoinIp, MAX_CONFIG_STRING, "%s", domainname);
+    }
+  }
+}
diff --git a/src/pc/network/socket/socket.c b/src/pc/network/socket/socket.c
index 468e2e34..d218a393 100644
--- a/src/pc/network/socket/socket.c
+++ b/src/pc/network/socket/socket.c
@@ -78,6 +78,7 @@ static bool ns_socket_initialize(enum NetworkType networkType) {
         // save the port to send to
         addr[0].sin_family = AF_INET;
         addr[0].sin_port = htons(port);
+        domain_resolution();
         addr[0].sin_addr.s_addr = inet_addr(configJoinIp);
         LOG_INFO("connecting to %s %u", configJoinIp, port);
     }
diff --git a/src/pc/network/socket/socket.h b/src/pc/network/socket/socket.h
index 9729e885..b8f26860 100644
--- a/src/pc/network/socket/socket.h
+++ b/src/pc/network/socket/socket.h
@@ -13,5 +13,6 @@ extern struct NetworkSystem gNetworkSystemSocket;
 
 SOCKET socket_initialize(void);
 void socket_shutdown(SOCKET socket);
+void domain_resolution(void);
 
 #endif