test_util_cache: remove unused argument c3 [luacheck]

[prosody.git] / util-src / windows.c

diff --git a/util-src/windows.c b/util-src/windows.c
index 7fb963121c7bd309aa055026e2ebb082364c078b..4fcbf21ea5bed5cfc72966584a24e3358d68c7ff 100644 (file)
--- a/util-src/windows.c
+++ b/util-src/windows.c
@@ -1,45 +1,111 @@
-\r
-#include <stdio.h>\r
-#include <windows.h>\r
-#include <windns.h>\r
-\r
-#include "lua.h"\r
-#include "lauxlib.h"\r
-\r
-static int Lget_nameservers(lua_State *L) {\r
-       char stack_buffer[1024]; // stack allocated buffer\r
-       IP4_ARRAY* ips = (IP4_ARRAY*) stack_buffer;\r
-       DWORD len = sizeof(stack_buffer);\r
-       DNS_STATUS status;\r
-\r
-       status = DnsQueryConfig(DnsConfigDnsServerList, FALSE, NULL, NULL, ips, &len);\r
-       if (status == 0) {\r
-               DWORD i;\r
-               lua_createtable(L, ips->AddrCount, 0);\r
-               for (i = 0; i < ips->AddrCount; i++) {\r
-                       DWORD ip = ips->AddrArray[i];\r
-                       char ip_str[16] = "";\r
-                       sprintf_s(ip_str, sizeof(ip_str), "%d.%d.%d.%d", (ip >> 0) & 255, (ip >> 8) & 255, (ip >> 16) & 255, (ip >> 24) & 255);\r
-                       lua_pushstring(L, ip_str);\r
-                       lua_rawseti(L, -2, i+1);\r
-               }\r
-               return 1;\r
-       } else {\r
-               luaL_error(L, "DnsQueryConfig returned %d", status);\r
-               return 0; // unreachable, but prevents a compiler warning\r
-       }\r
-}\r
-\r
-static const luaL_Reg Reg[] =\r
-{\r
-       { "get_nameservers",    Lget_nameservers        },\r
-       { NULL,         NULL    }\r
-};\r
-\r
-LUALIB_API int luaopen_util_windows(lua_State *L) {\r
-       luaL_register(L, "windows", Reg);\r
-       lua_pushliteral(L, "version");                  /** version */\r
-       lua_pushliteral(L, "-3.14");\r
-       lua_settable(L,-3);\r
-       return 1;\r
-}\r
+/* 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"
+
+#if (LUA_VERSION_NUM == 501)
+#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
+#endif
+
+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, 1, 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) {
+       lua_newtable(L);
+       luaL_setfuncs(L, Reg, 0);
+       lua_pushliteral(L, "-3.14");
+       lua_setfield(L, -2, "version");
+       return 1;
+}