2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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12 * Windows support functions for Lua
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16 #include <windows.h>
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20 #include "lauxlib.h"
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22 static int Lget_nameservers(lua_State *L) {
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23 char stack_buffer[1024]; // stack allocated buffer
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24 IP4_ARRAY* ips = (IP4_ARRAY*) stack_buffer;
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25 DWORD len = sizeof(stack_buffer);
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28 status = DnsQueryConfig(DnsConfigDnsServerList, FALSE, NULL, NULL, ips, &len);
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31 lua_createtable(L, ips->AddrCount, 0);
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32 for (i = 0; i < ips->AddrCount; i++) {
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33 DWORD ip = ips->AddrArray[i];
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34 char ip_str[16] = "";
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35 sprintf_s(ip_str, sizeof(ip_str), "%d.%d.%d.%d", (ip >> 0) & 255, (ip >> 8) & 255, (ip >> 16) & 255, (ip >> 24) & 255);
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36 lua_pushstring(L, ip_str);
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37 lua_rawseti(L, -2, i+1);
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41 luaL_error(L, "DnsQueryConfig returned %d", status);
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42 return 0; // unreachable, but prevents a compiler warning
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46 static const luaL_Reg Reg[] =
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48 { "get_nameservers", Lget_nameservers },
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52 LUALIB_API int luaopen_util_windows(lua_State *L) {
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53 luaL_register(L, "windows", Reg);
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54 lua_pushliteral(L, "version"); /** version */
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55 lua_pushliteral(L, "-3.14");
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