prosody
83668e16b9a3
util-src/windows.c

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util-src/windows.c @ 10688:83668e16b9a3

MUC: Switch to new storage format by default Changing the default setting of `new_muc_storage_format` from false to true. The code supports reading both formats since 0.11, but servers with MUCs stored using the new format will not be able to downgrade to 0.10 or earlier. The new format is clearer (less nesting for the most commonly-accessed data), and combined with the new map-store methods, allows for some operations to become more efficient (such as finding out which MUCs on a service a given user is affiliated with).
author Matthew Wild <mwild1@gmail.com>
date Thu, 12 Mar 2020 16:10:44 +0000
parent 7889:b8d694646597
child 10921:6eb5d2bb11af
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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 == 501)
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23 #define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
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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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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 lua_pushnil(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 lua_pushnil(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 #if (LUA_VERSION_NUM > 501)
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107 luaL_checkversion(L);
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108 #endif
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109 lua_newtable(L);
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110 luaL_setfuncs(L, Reg, 0);
2924
8dc4e2e00129 util.windows: Convert from Windows line endings
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
111 lua_pushliteral(L, "-3.14");
6412
0e94f89d0e62 util-src/*.c: Use the more concise lua_setfield
Kim Alvefur <zash@zash.se>
parents: 6411
diff changeset
112 lua_setfield(L, -2, "version");
2924
8dc4e2e00129 util.windows: Convert from Windows line endings
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
113 return 1;
8dc4e2e00129 util.windows: Convert from Windows line endings
Matthew Wild <mwild1@gmail.com>
parents: 2923
diff changeset
114 }