Annotate

util-src/windows.c @ 13103:42c2a9787242

net.http.server: Remove "Firing event" logs, use event logging instead Since these are noisy and we have the thing in util.helpers to log events fired. The new status line events are meant to replace these as they include more useful info.
author Kim Alvefur <zash@zash.se>
date Sun, 14 May 2023 18:48:20 +0200
parent 12575:1f6f05a98fcd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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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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7 --
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8 */
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9
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10 /*
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11 * windows.c
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12 * Windows support functions for Lua
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13 */
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14
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15 #include <stdio.h>
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16 #include <windows.h>
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17 #include <windns.h>
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18
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19 #include "lua.h"
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20 #include "lauxlib.h"
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21
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22 #if (LUA_VERSION_NUM < 504)
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23 #define luaL_pushfail lua_pushnil
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24 #endif
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25
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26 static int Lget_nameservers(lua_State *L) {
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27 char stack_buffer[1024]; // stack allocated buffer
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28 IP4_ARRAY *ips = (IP4_ARRAY *) stack_buffer;
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29 DWORD len = sizeof(stack_buffer);
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30 DNS_STATUS status;
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31
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32 status = DnsQueryConfig(DnsConfigDnsServerList, FALSE, NULL, NULL, ips, &len);
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33
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34 if(status == 0) {
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35 DWORD i;
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36 lua_createtable(L, ips->AddrCount, 0);
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37
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38 for(i = 0; i < ips->AddrCount; i++) {
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39 DWORD ip = ips->AddrArray[i];
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40 char ip_str[16] = "";
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41 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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42 lua_pushstring(L, ip_str);
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43 lua_rawseti(L, -2, i + 1);
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44 }
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45
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46 return 1;
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47 } else {
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48 luaL_pushfail(L);
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49 lua_pushfstring(L, "DnsQueryConfig returned %d", status);
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50 return 2;
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51 }
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52 }
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53
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54 static int lerror(lua_State *L, char *string) {
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55 luaL_pushfail(L);
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56 lua_pushfstring(L, "%s: %d", string, GetLastError());
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57 return 2;
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58 }
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59
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60 static int Lget_consolecolor(lua_State *L) {
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61 HWND console = GetStdHandle(STD_OUTPUT_HANDLE);
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62 WORD color;
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63 DWORD read_len;
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64
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65 CONSOLE_SCREEN_BUFFER_INFO info;
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66
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67 if(console == INVALID_HANDLE_VALUE) {
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68 return lerror(L, "GetStdHandle");
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69 }
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70
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71 if(!GetConsoleScreenBufferInfo(console, &info)) {
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72 return lerror(L, "GetConsoleScreenBufferInfo");
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73 }
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74
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75 if(!ReadConsoleOutputAttribute(console, &color, 1, info.dwCursorPosition, &read_len)) {
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76 return lerror(L, "ReadConsoleOutputAttribute");
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77 }
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78
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79 lua_pushnumber(L, color);
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80 return 1;
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81 }
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82 static int Lset_consolecolor(lua_State *L) {
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83 int color = luaL_checkint(L, 1);
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84 HWND console = GetStdHandle(STD_OUTPUT_HANDLE);
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85
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86 if(console == INVALID_HANDLE_VALUE) {
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87 return lerror(L, "GetStdHandle");
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88 }
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89
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90 if(!SetConsoleTextAttribute(console, color)) {
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91 return lerror(L, "SetConsoleTextAttribute");
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92 }
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93
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94 lua_pushboolean(L, 1);
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95 return 1;
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96 }
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97
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98 static const luaL_Reg Reg[] = {
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99 { "get_nameservers", Lget_nameservers },
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100 { "get_consolecolor", Lget_consolecolor },
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101 { "set_consolecolor", Lset_consolecolor },
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102 { NULL, NULL }
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103 };
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104
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105 LUALIB_API int luaopen_util_windows(lua_State *L) {
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106 luaL_checkversion(L);
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107 lua_newtable(L);
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108 luaL_setfuncs(L, Reg, 0);
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109 lua_pushliteral(L, "-3.14");
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110 lua_setfield(L, -2, "version");
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111 return 1;
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112 }