1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
#include "pch.h"
#include "vcpkg_System.h"
#include "vcpkg_Checks.h"
namespace vcpkg::System
{
fs::path get_exe_path_of_current_process()
{
wchar_t buf[_MAX_PATH];
int bytes = GetModuleFileNameW(nullptr, buf, _MAX_PATH);
if (bytes == 0)
std::abort();
return fs::path(buf, buf + bytes);
}
int cmd_execute_clean(const cwstring_view cmd_line)
{
static const std::wstring system_root = *get_environmental_variable(L"SystemRoot");
static const std::wstring system_32 = system_root + LR"(\system32)";
static const std::wstring new_PATH = Strings::wformat(LR"(Path=%s;%s;%s\WindowsPowerShell\v1.0\)", system_32, system_root, system_32);
std::vector<std::wstring> env_wstrings =
{
L"ALLUSERSPROFILE",
L"APPDATA",
L"CommonProgramFiles",
L"CommonProgramFiles(x86)",
L"CommonProgramW6432",
L"COMPUTERNAME",
L"ComSpec",
L"HOMEDRIVE",
L"HOMEPATH",
L"LOCALAPPDATA",
L"LOGONSERVER",
L"NUMBER_OF_PROCESSORS",
L"OS",
L"PATHEXT",
L"PROCESSOR_ARCHITECTURE",
L"PROCESSOR_IDENTIFIER",
L"PROCESSOR_LEVEL",
L"PROCESSOR_REVISION",
L"ProgramData",
L"ProgramFiles",
L"ProgramFiles(x86)",
L"ProgramW6432",
L"PROMPT",
L"PSModulePath",
L"PUBLIC",
L"SystemDrive",
L"SystemRoot",
L"TEMP",
L"TMP",
L"USERDNSDOMAIN",
L"USERDOMAIN",
L"USERDOMAIN_ROAMINGPROFILE",
L"USERNAME",
L"USERPROFILE",
L"windir",
// Enables proxy information to be passed to Curl, the underlying download library in cmake.exe
L"HTTP_PROXY",
L"HTTPS_PROXY",
};
// Flush stdout before launching external process
_flushall();
std::vector<const wchar_t*> env_cstr;
env_cstr.reserve(env_wstrings.size() + 2);
for (auto&& env_wstring : env_wstrings)
{
auto v = System::get_environmental_variable(env_wstring.c_str());
if (v == nullptr || v->empty())
continue;
env_wstring.push_back(L'=');
env_wstring.append(*v);
env_cstr.push_back(env_wstring.c_str());
}
env_cstr.push_back(new_PATH.c_str());
env_cstr.push_back(nullptr);
// Basically we are wrapping it in quotes
const std::wstring& actual_cmd_line = Strings::wformat(LR"###("%s")###", cmd_line);
auto exit_code = _wspawnlpe(_P_WAIT, L"cmd.exe", L"cmd.exe", L"/c", actual_cmd_line.c_str(), nullptr, env_cstr.data());
return static_cast<int>(exit_code);
}
int cmd_execute(const cwstring_view cmd_line)
{
// Flush stdout before launching external process
_flushall();
// Basically we are wrapping it in quotes
const std::wstring& actual_cmd_line = Strings::wformat(LR"###("%s")###", cmd_line);
int exit_code = _wsystem(actual_cmd_line.c_str());
return exit_code;
}
exit_code_and_output cmd_execute_and_capture_output(const cwstring_view cmd_line)
{
// Flush stdout before launching external process
fflush(stdout);
const std::wstring& actual_cmd_line = Strings::wformat(LR"###("%s 2>&1")###", cmd_line);
std::string output;
char buf[1024];
auto pipe = _wpopen(actual_cmd_line.c_str(), L"r");
if (pipe == nullptr)
{
return { 1, output };
}
while (fgets(buf, 1024, pipe))
{
output.append(buf);
}
if (!feof(pipe))
{
return { 1, output };
}
auto ec = _pclose(pipe);
return { ec, output };
}
std::wstring create_powershell_script_cmd(const fs::path& script_path, const cwstring_view args)
{
// TODO: switch out ExecutionPolicy Bypass with "Remove Mark Of The Web" code and restore RemoteSigned
return Strings::wformat(LR"(powershell -NoProfile -ExecutionPolicy Bypass -Command "& {& '%s' %s}")", script_path.native(), args);
}
void print(const cstring_view message)
{
fputs(message, stdout);
}
void println(const cstring_view message)
{
print(message);
putchar('\n');
}
void print(const color c, const cstring_view message)
{
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_SCREEN_BUFFER_INFO consoleScreenBufferInfo{};
GetConsoleScreenBufferInfo(hConsole, &consoleScreenBufferInfo);
auto original_color = consoleScreenBufferInfo.wAttributes;
SetConsoleTextAttribute(hConsole, static_cast<WORD>(c) | (original_color & 0xF0));
print(message);
SetConsoleTextAttribute(hConsole, original_color);
}
void println(const color c, const cstring_view message)
{
print(c, message);
putchar('\n');
}
optional<std::wstring> get_environmental_variable(const cwstring_view varname) noexcept
{
auto sz = GetEnvironmentVariableW(varname, nullptr, 0);
if (sz == 0)
return nullptr;
auto ret = std::make_unique<std::wstring>(sz, L'\0');
Checks::check_exit(VCPKG_LINE_INFO, MAXDWORD >= ret->size());
auto sz2 = GetEnvironmentVariableW(varname, ret->data(), static_cast<DWORD>(ret->size()));
Checks::check_exit(VCPKG_LINE_INFO, sz2 + 1 == sz);
ret->pop_back();
return ret;
}
void set_environmental_variable(const cwstring_view varname, const cwstring_view varvalue) noexcept
{
_wputenv_s(varname, varvalue);
}
static bool is_string_keytype(DWORD hkey_type)
{
return hkey_type == REG_SZ || hkey_type == REG_MULTI_SZ || hkey_type == REG_EXPAND_SZ;
}
optional<std::wstring> get_registry_string(HKEY base, const cwstring_view subKey, const cwstring_view valuename)
{
HKEY k = nullptr;
LSTATUS ec = RegOpenKeyExW(base, subKey, NULL, KEY_READ, &k);
if (ec != ERROR_SUCCESS)
return nullptr;
DWORD dwBufferSize = 0;
DWORD dwType = 0;
auto rc = RegQueryValueExW(k, valuename, nullptr, &dwType, nullptr, &dwBufferSize);
if (rc != ERROR_SUCCESS || !is_string_keytype(dwType) || dwBufferSize == 0 || dwBufferSize % sizeof(wchar_t) != 0)
return nullptr;
std::wstring ret;
ret.resize(dwBufferSize / sizeof(wchar_t));
rc = RegQueryValueExW(k, valuename, nullptr, &dwType, reinterpret_cast<LPBYTE>(ret.data()), &dwBufferSize);
if (rc != ERROR_SUCCESS || !is_string_keytype(dwType) || dwBufferSize != sizeof(wchar_t) * ret.size())
return nullptr;
ret.pop_back(); // remove extra trailing null byte
return std::make_unique<std::wstring>(std::move(ret));
}
}
|
