1 files changed, 89 insertions, 0 deletions
diff --git a/util-src/windows.c b/util-src/windows.c
new file mode 100644
index 00000000..121cc471
--- /dev/null
+++ b/util-src/windows.c
@@ -0,0 +1,89 @@
+/* Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+*/
+
+/*
+* windows.c
+* Windows support functions for Lua
+*/
+
+#include <stdio.h>
+#include <windows.h>
+#include <windns.h>
+
+#include "lua.h"
+#include "lauxlib.h"
+
+static int Lget_nameservers(lua_State *L) {
+	char stack_buffer[1024]; // stack allocated buffer
+	IP4_ARRAY* ips = (IP4_ARRAY*) stack_buffer;
+	DWORD len = sizeof(stack_buffer);
+	DNS_STATUS status;
+
+	status = DnsQueryConfig(DnsConfigDnsServerList, FALSE, NULL, NULL, ips, &len);
+	if (status == 0) {
+		DWORD i;
+		lua_createtable(L, ips->AddrCount, 0);
+		for (i = 0; i < ips->AddrCount; i++) {
+			DWORD ip = ips->AddrArray[i];
+			char ip_str[16] = "";
+			sprintf_s(ip_str, sizeof(ip_str), "%d.%d.%d.%d", (ip >> 0) & 255, (ip >> 8) & 255, (ip >> 16) & 255, (ip >> 24) & 255);
+			lua_pushstring(L, ip_str);
+			lua_rawseti(L, -2, i+1);
+		}
+		return 1;
+	} else {
+		lua_pushnil(L);
+		lua_pushfstring(L, "DnsQueryConfig returned %d", status);
+		return 2;
+	}
+}
+
+static int lerror(lua_State *L, char* string) {
+	lua_pushnil(L);
+	lua_pushfstring(L, "%s: %d", string, GetLastError());
+	return 2;
+}
+
+static int Lget_consolecolor(lua_State *L) {
+	HWND console = GetStdHandle(STD_OUTPUT_HANDLE);
+	WORD color; DWORD read_len;
+	
+	CONSOLE_SCREEN_BUFFER_INFO info;
+	
+	if (console == INVALID_HANDLE_VALUE) return lerror(L, "GetStdHandle");
+	if (!GetConsoleScreenBufferInfo(console, &info)) return lerror(L, "GetConsoleScreenBufferInfo");
+	if (!ReadConsoleOutputAttribute(console, &color, sizeof(WORD), info.dwCursorPosition, &read_len)) return lerror(L, "ReadConsoleOutputAttribute");
+
+	lua_pushnumber(L, color);
+	return 1;
+}
+static int Lset_consolecolor(lua_State *L) {
+	int color = luaL_checkint(L, 1);
+	HWND console = GetStdHandle(STD_OUTPUT_HANDLE);
+	if (console == INVALID_HANDLE_VALUE) return lerror(L, "GetStdHandle");
+	if (!SetConsoleTextAttribute(console, color)) return lerror(L, "SetConsoleTextAttribute");
+	lua_pushboolean(L, 1);
+	return 1;
+}
+
+static const luaL_Reg Reg[] =
+{
+	{ "get_nameservers",	Lget_nameservers	},
+	{ "get_consolecolor",	Lget_consolecolor	},
+	{ "set_consolecolor",	Lset_consolecolor	},
+	{ NULL,		NULL	}
+};
+
+LUALIB_API int luaopen_util_windows(lua_State *L) {
+	luaL_register(L, "windows", Reg);
+	lua_pushliteral(L, "version");			/** version */
+	lua_pushliteral(L, "-3.14");
+	lua_settable(L,-3);
+	return 1;
+}