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util-src/windows.c

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util-src/windows.c @ 2900:5b8411968a05

Merge 0.7->trunk
author Matthew Wild <mwild1@gmail.com>
date Thu, 18 Mar 2010 01:44:55 +0000
parent 2062:699686c8d016
child 2923:b7049746bd29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2062
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
Waqas Hussain <waqas20@gmail.com>
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699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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2 #include <stdio.h>
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3 #include <windows.h>
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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4 #include <windns.h>
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699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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6 #include "lua.h"
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7 #include "lauxlib.h"
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699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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9 static int Lget_nameservers(lua_State *L) {
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10 char stack_buffer[1024]; // stack allocated buffer
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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11 IP4_ARRAY* ips = (IP4_ARRAY*) stack_buffer;
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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12 DWORD len = sizeof(stack_buffer);
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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13 DNS_STATUS status;
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699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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15 status = DnsQueryConfig(DnsConfigDnsServerList, FALSE, NULL, NULL, ips, &len);
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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16 if (status == 0) {
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17 DWORD i;
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18 lua_createtable(L, ips->AddrCount, 0);
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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19 for (i = 0; i < ips->AddrCount; i++) {
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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20 DWORD ip = ips->AddrArray[i];
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21 char ip_str[16] = "";
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22 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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23 lua_pushstring(L, ip_str);
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24 lua_rawseti(L, -2, i+1);
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25 }
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26 return 1;
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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27 } else {
699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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28 luaL_error(L, "DnsQueryConfig returned %d", status);
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29 return 0; // unreachable, but prevents a compiler warning
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30 }
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31 }
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33 static const luaL_Reg Reg[] =
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34 {
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35 { "get_nameservers", Lget_nameservers },
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36 { NULL, NULL }
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37 };
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699686c8d016 util.windows: Initial commit. Adds support for querying the windows DNS API for nameservers.
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39 LUALIB_API int luaopen_util_windows(lua_State *L) {
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40 luaL_register(L, "windows", Reg);
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41 lua_pushliteral(L, "version"); /** version */
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42 lua_pushliteral(L, "-3.14");
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43 lua_settable(L,-3);
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44 return 1;
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45 }