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annotate dep/animia/src/fd/win32.cc @ 150:ffa535b6d630

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*: avoid usage of std::[pair,tuple] https://arne-mertz.de/2017/03/smelly-pair-tuple/ it's better to use real structures and such where variables are easily known... also apparently using [] on structs is actually valid? I had no idea.
author Paper <mrpapersonic@gmail.com>
date Tue, 14 Nov 2023 16:27:33 -0500
parents aa4df5a84338
children 54744a48a7d7
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1 /**
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2 * win32.cpp
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3 * - provides support for Windows clients
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4 *
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5 **/
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6 #include "animia/fd/win32.h"
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7
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8 #include <stdexcept>
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9 #include <string>
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10 #include <unordered_map>
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11 #include <vector>
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12
138
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13 #include <fileapi.h>
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14 #include <handleapi.h>
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15 #include <libloaderapi.h>
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16 #include <ntdef.h>
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17 #include <psapi.h>
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18 #include <shlobj.h>
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19 #include <stringapiset.h>
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20 #include <tlhelp32.h>
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21 #include <windows.h>
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22 #include <winternl.h>
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23
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24 /* This file is noticably more complex than Unix and Linux, and that's because
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25 there is no "simple" way to get the paths of a file. In fact, this thing requires
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26 you to use *internal functions* that can't even be linked to, hence why we have to
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27 use GetProcAddress and such. What a mess. */
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28
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29 #define SystemExtendedHandleInformation ((SYSTEM_INFORMATION_CLASS)0x40)
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30 constexpr NTSTATUS STATUS_INFO_LENGTH_MISMATCH = 0xC0000004UL;
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31 constexpr NTSTATUS STATUS_SUCCESS = 0x00000000UL;
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32
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33 static unsigned short file_type_index = 0;
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34
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35 struct SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX {
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36 PVOID Object;
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37 ULONG_PTR UniqueProcessId;
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38 HANDLE HandleValue;
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39 ACCESS_MASK GrantedAccess;
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40 USHORT CreatorBackTraceIndex;
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41 USHORT ObjectTypeIndex;
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42 ULONG HandleAttributes;
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43 ULONG Reserved;
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44 };
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45
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46 struct SYSTEM_HANDLE_INFORMATION_EX {
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47 ULONG_PTR NumberOfHandles;
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48 ULONG_PTR Reserved;
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49 SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX Handles[1];
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50 };
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51
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52 namespace animia::internal::win32 {
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53
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54 static HANDLE DuplicateHandle(HANDLE process_handle, HANDLE handle) {
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55 HANDLE dup_handle = nullptr;
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56 const bool result =
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57 ::DuplicateHandle(process_handle, handle, ::GetCurrentProcess(), &dup_handle, 0, false, DUPLICATE_SAME_ACCESS);
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58 return result ? dup_handle : nullptr;
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59 }
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60
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61 static PVOID GetNTDLLAddress(LPCSTR proc_name) {
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62 return reinterpret_cast<PVOID>(::GetProcAddress(::GetModuleHandleA("ntdll.dll"), proc_name));
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63 }
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64
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65 static NTSTATUS QuerySystemInformation(SYSTEM_INFORMATION_CLASS cls, PVOID sysinfo, ULONG len, PULONG retlen) {
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66 static const auto func =
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67 reinterpret_cast<decltype(::NtQuerySystemInformation)*>(GetNTDLLAddress("NtQuerySystemInformation"));
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68 return func(cls, sysinfo, len, retlen);
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69 }
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70
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71 static NTSTATUS QueryObject(HANDLE handle, OBJECT_INFORMATION_CLASS cls, PVOID objinf, ULONG objinflen, PULONG retlen) {
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72 static const auto func = reinterpret_cast<decltype(::NtQueryObject)*>(GetNTDLLAddress("NtQueryObject"));
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73 return func(handle, cls, objinf, objinflen, retlen);
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74 }
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75
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76 static std::vector<SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX> GetSystemHandleInformation() {
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77 std::vector<SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX> res;
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78 /* we should really put a cap on this */
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79 ULONG cb = 1 << 19;
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80 NTSTATUS status = STATUS_SUCCESS;
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81 SYSTEM_HANDLE_INFORMATION_EX* info;
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82
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83 do {
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84 status = STATUS_NO_MEMORY;
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85
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86 if (!(info = (SYSTEM_HANDLE_INFORMATION_EX*)malloc(cb *= 2)))
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87 continue;
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88
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89 res.reserve(cb);
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90
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91 if (0 <= (status = QuerySystemInformation(SystemExtendedHandleInformation, info, cb, &cb))) {
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92 if (ULONG_PTR handles = info->NumberOfHandles) {
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93 SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX* entry = info->Handles;
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94 do {
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95 if (entry)
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96 res.push_back(*entry);
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97 } while (entry++, --handles);
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98 }
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99 }
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100 free(info);
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101 } while (status == STATUS_INFO_LENGTH_MISMATCH);
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102
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103 return res;
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104 }
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105
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106 static OBJECT_TYPE_INFORMATION QueryObjectTypeInfo(HANDLE handle) {
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107 OBJECT_TYPE_INFORMATION info;
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108 QueryObject(handle, ObjectTypeInformation, &info, sizeof(info), NULL);
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109 return info;
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110 }
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111
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112 /* we're using UTF-8. originally, I had used just the ANSI versions of functions, but that
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113 sucks massive dick. this way we get unicode in the way every single other OS does it */
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114 static std::string UnicodeStringToUtf8(std::wstring string) {
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115 unsigned long size = ::WideCharToMultiByte(CP_UTF8, 0, string.c_str(), string.length(), NULL, 0, NULL, NULL);
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116 std::string ret = std::string(size, '\0');
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117 ::WideCharToMultiByte(CP_UTF8, 0, string.c_str(), string.length(), &ret.front(), ret.length(), NULL, NULL);
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118 return ret;
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119 }
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120
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121 static std::string UnicodeStringToUtf8(UNICODE_STRING string) {
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122 unsigned long size = ::WideCharToMultiByte(CP_UTF8, 0, string.Buffer, string.Length, NULL, 0, NULL, NULL);
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123 std::string ret = std::string(size, '\0');
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124 ::WideCharToMultiByte(CP_UTF8, 0, string.Buffer, string.Length, &ret.front(), ret.length(), NULL, NULL);
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125 return ret;
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126 }
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127
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128 static std::wstring Utf8StringToUnicode(std::string string) {
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129 unsigned long size = ::MultiByteToWideChar(CP_UTF8, 0, string.c_str(), string.length(), NULL, 0);
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130 std::wstring ret = std::wstring(size, L'\0');
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131 ::MultiByteToWideChar(CP_UTF8, 0, string.c_str(), string.length(), &ret.front(), ret.length());
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132 return ret;
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133 }
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134
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135 static std::string GetHandleType(HANDLE handle) {
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136 OBJECT_TYPE_INFORMATION info = QueryObjectTypeInfo(handle);
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137 return UnicodeStringToUtf8(info.TypeName);
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138 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
139
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
140 static std::string GetFinalPathNameByHandle(HANDLE handle) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
141 std::wstring buffer;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
142
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
143 int result = ::GetFinalPathNameByHandleW(handle, NULL, 0, FILE_NAME_NORMALIZED | VOLUME_NAME_DOS);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
144 buffer.resize(result);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
145 ::GetFinalPathNameByHandleW(handle, &buffer.front(), buffer.size(), FILE_NAME_NORMALIZED | VOLUME_NAME_DOS);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
146 buffer.resize(buffer.find('\0'));
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
147
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
148 return UnicodeStringToUtf8(buffer);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
149 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
150
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
151 static bool IsFileHandle(HANDLE handle, unsigned short object_type_index) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
152 if (file_type_index)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
153 return object_type_index == file_type_index;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
154 else if (!handle)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
155 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
156 else if (GetHandleType(handle) == "File") {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
157 file_type_index = object_type_index;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
158 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
159 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
160 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
161 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
162
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
163 static bool IsFileMaskOk(ACCESS_MASK access_mask) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
164 if (!(access_mask & FILE_READ_DATA))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
165 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
166
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
167 if ((access_mask & FILE_APPEND_DATA) || (access_mask & FILE_WRITE_EA) || (access_mask & FILE_WRITE_ATTRIBUTES))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
168 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
169
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
170 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
171 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
172
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
173 static std::string GetSystemDirectory() {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
174 PWSTR path_wch;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
175 SHGetKnownFolderPath(FOLDERID_Windows, 0, NULL, &path_wch);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
176 std::wstring path_wstr(path_wch);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
177 CoTaskMemFree(path_wch);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
178 return UnicodeStringToUtf8(path_wstr);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
179 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
180
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
181 static bool IsSystemFile(const std::string& path) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
182 std::wstring path_w = Utf8StringToUnicode(path);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
183 CharUpperBuffW(&path_w.front(), path_w.length());
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
184 std::wstring windir_w = Utf8StringToUnicode(GetSystemDirectory());
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
185 CharUpperBuffW(&windir_w.front(), windir_w.length());
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
186 return path_w.find(windir_w) == 4;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
187 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
188
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
189 static bool IsFilePathOk(const std::string& path) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
190 if (path.empty())
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
191 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
192
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
193 if (IsSystemFile(path))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
194 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
195
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
196 const auto file_attributes = GetFileAttributesA(path.c_str());
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
197 if ((file_attributes == INVALID_FILE_ATTRIBUTES) || (file_attributes & FILE_ATTRIBUTE_DIRECTORY))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
198 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
199
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
200 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
201 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
202
139
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
203 bool Win32FdTools::GetAllPids(std::set<pid_t>& pids) {
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
204 HANDLE hProcessSnap = ::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
205 if (hProcessSnap == INVALID_HANDLE_VALUE)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
206 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
207
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
208 PROCESSENTRY32 pe32;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
209 pe32.dwSize = sizeof(PROCESSENTRY32);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
210
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
211 if (!::Process32First(hProcessSnap, &pe32))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
212 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
213
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
214 pids.insert(pe32.th32ProcessID);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
215
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
216 while (::Process32Next(hProcessSnap, &pe32))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
217 pids.insert(pe32.th32ProcessID);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
218
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
219 ::CloseHandle(hProcessSnap);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
220
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
221 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
222 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
223
139
478f3b366199 dep/animia: separate lots of things, use base class for OS stuff
Paper <mrpapersonic@gmail.com>
parents: 138
diff changeset
224 bool Win32FdTools::GetProcessName(pid_t pid, std::string& result) {
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
225 unsigned long ret_size = 0; // size given by GetModuleBaseNameW
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
226 Handle handle(::OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pid));
150
ffa535b6d630 *: avoid usage of std::[pair,tuple]
Paper <mrpapersonic@gmail.com>
parents: 148
diff changeset
227 if (handle.get() == INVALID_HANDLE_VALUE)
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
228 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
229
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
230 /* agh... */
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
231 std::wstring ret(256, L'\0');
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
232 for (; ret.length() < 32768; ret.resize(ret.length() * 2)) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
233 if (!(ret_size = ::GetModuleBaseNameW(handle.get(), 0, &ret.front(), ret.length()))) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
234 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
235 } else if (ret.length() > ret_size) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
236 ret.resize(ret.find(L'\0'));
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
237 result = UnicodeStringToUtf8(ret);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
238 break;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
239 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
240 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
241
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
242 return true;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
243 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
244
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
245 /* this could be changed to being a callback, but... I'm too lazy right now :) */
150
ffa535b6d630 *: avoid usage of std::[pair,tuple]
Paper <mrpapersonic@gmail.com>
parents: 148
diff changeset
246 bool Win32FdTools::EnumerateOpenFiles(const std::set<pid_t>& pids, std::vector<OpenFile>& files) {
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
247 std::unordered_map<pid_t, Handle> proc_handles;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
248
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
249 for (const pid_t& pid : pids) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
250 const HANDLE handle = ::OpenProcess(PROCESS_DUP_HANDLE, false, pid);
150
ffa535b6d630 *: avoid usage of std::[pair,tuple]
Paper <mrpapersonic@gmail.com>
parents: 148
diff changeset
251 if (handle != INVALID_HANDLE_VALUE)
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
252 proc_handles[pid] = Handle(handle);
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
253 }
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
254
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
255 if (proc_handles.empty())
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
256 return false;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
257
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
258 std::vector<SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX> info = GetSystemHandleInformation();
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
259
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
260 for (const auto& h : info) {
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
261 const pid_t pid = h.UniqueProcessId;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
262 if (!pids.count(pid))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
263 continue;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
264
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
265 if (!IsFileHandle(nullptr, h.ObjectTypeIndex))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
266 continue;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
267
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
268 if (!IsFileMaskOk(h.GrantedAccess))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
269 continue;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
270
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
271 Handle handle(DuplicateHandle(proc_handles[pid].get(), h.HandleValue));
150
ffa535b6d630 *: avoid usage of std::[pair,tuple]
Paper <mrpapersonic@gmail.com>
parents: 148
diff changeset
272 if (handle.get() == INVALID_HANDLE_VALUE)
138
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
273 continue;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
274
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
275 if (GetFileType(handle.get()) != FILE_TYPE_DISK)
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
276 continue;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
277
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
278 const std::string path = GetFinalPathNameByHandle(handle.get());
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
279 if (!IsFilePathOk(path))
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
280 continue;
28842a8d0c6b dep/animia: huge refactor (again...)
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
281
150
ffa535b6d630 *: avoid usage of std::[pair,tuple]
Paper <mrpapersonic@gmail.com>
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282 OpenFile file;
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283 file.pid = pid;
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284 file.path = path;
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285
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286 files.push_back(file);
138
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287 }
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288
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289 return true;
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290 }
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291
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292 } // namespace animia::internal::win32