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76 lines
2.6 KiB
Plaintext
76 lines
2.6 KiB
Plaintext
// Copyright (c) 2011-2016 Ryan Prichard
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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#include "AgentLocation.h"
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#include <windows.h>
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#include <string>
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#include "../shared/WinptyAssert.h"
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#include "LibWinptyException.h"
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#define AGENT_EXE L"winpty-agent.exe"
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static HMODULE getCurrentModule() {
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HMODULE module;
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if (!GetModuleHandleExW(
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GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
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GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
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reinterpret_cast<LPCWSTR>(getCurrentModule),
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&module)) {
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ASSERT(false && "GetModuleHandleEx failed");
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}
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return module;
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}
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static std::wstring getModuleFileName(HMODULE module) {
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const int bufsize = 4096;
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wchar_t path[bufsize];
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int size = GetModuleFileNameW(module, path, bufsize);
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ASSERT(size != 0 && size != bufsize);
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return std::wstring(path);
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}
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static std::wstring dirname(const std::wstring &path) {
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std::wstring::size_type pos = path.find_last_of(L"\\/");
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if (pos == std::wstring::npos) {
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return L"";
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} else {
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return path.substr(0, pos);
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}
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}
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static bool pathExists(const std::wstring &path) {
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return GetFileAttributesW(path.c_str()) != 0xFFFFFFFF;
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}
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std::wstring findAgentProgram() {
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std::wstring progDir = dirname(getModuleFileName(getCurrentModule()));
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std::wstring ret = progDir + (L"\\" AGENT_EXE);
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if (!pathExists(ret)) {
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throw LibWinptyException(
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WINPTY_ERROR_AGENT_EXE_MISSING,
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(L"agent executable does not exist: '" + ret + L"'").c_str());
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}
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return ret;
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}
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