diff options
| -rw-r--r-- | util-src/windows.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/util-src/windows.c b/util-src/windows.c new file mode 100644 index 00000000..7fb96312 --- /dev/null +++ b/util-src/windows.c @@ -0,0 +1,45 @@ +
+#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 {
+ luaL_error(L, "DnsQueryConfig returned %d", status);
+ return 0; // unreachable, but prevents a compiler warning
+ }
+}
+
+static const luaL_Reg Reg[] =
+{
+ { "get_nameservers", Lget_nameservers },
+ { 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;
+}
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