installed pty

[VSoRC/.git] / node_modules / node-pty / deps / winpty / src / libwinpty / AgentLocation.cc

diff --git a/node_modules/node-pty/deps/winpty/src/libwinpty/AgentLocation.cc b/node_modules/node-pty/deps/winpty/src/libwinpty/AgentLocation.cc
new file mode 100644 (file)
index 0000000..82d00b2
--- /dev/null
+++ b/node_modules/node-pty/deps/winpty/src/libwinpty/AgentLocation.cc
@@ -0,0 +1,75 @@
+// Copyright (c) 2011-2016 Ryan Prichard
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+
+#include "AgentLocation.h"
+
+#include <windows.h>
+
+#include <string>
+
+#include "../shared/WinptyAssert.h"
+
+#include "LibWinptyException.h"
+
+#define AGENT_EXE L"winpty-agent.exe"
+
+static HMODULE getCurrentModule() {
+    HMODULE module;
+    if (!GetModuleHandleExW(
+                GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
+                GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+                reinterpret_cast<LPCWSTR>(getCurrentModule),
+                &module)) {
+        ASSERT(false && "GetModuleHandleEx failed");
+    }
+    return module;
+}
+
+static std::wstring getModuleFileName(HMODULE module) {
+    const int bufsize = 4096;
+    wchar_t path[bufsize];
+    int size = GetModuleFileNameW(module, path, bufsize);
+    ASSERT(size != 0 && size != bufsize);
+    return std::wstring(path);
+}
+
+static std::wstring dirname(const std::wstring &path) {
+    std::wstring::size_type pos = path.find_last_of(L"\\/");
+    if (pos == std::wstring::npos) {
+        return L"";
+    } else {
+        return path.substr(0, pos);
+    }
+}
+
+static bool pathExists(const std::wstring &path) {
+    return GetFileAttributesW(path.c_str()) != 0xFFFFFFFF;
+}
+
+std::wstring findAgentProgram() {
+    std::wstring progDir = dirname(getModuleFileName(getCurrentModule()));
+    std::wstring ret = progDir + (L"\\" AGENT_EXE);
+    if (!pathExists(ret)) {
+        throw LibWinptyException(
+            WINPTY_ERROR_AGENT_EXE_MISSING,
+            (L"agent executable does not exist: '" + ret + L"'").c_str());
+    }
+    return ret;
+}