installed pty

[VSoRC/.git] / node_modules / node-pty / deps / winpty / src / debugserver / DebugServer.cc

diff --git a/node_modules/node-pty/deps/winpty/src/debugserver/DebugServer.cc b/node_modules/node-pty/deps/winpty/src/debugserver/DebugServer.cc
new file mode 100644 (file)
index 0000000..353d31c
--- /dev/null
+++ b/node_modules/node-pty/deps/winpty/src/debugserver/DebugServer.cc
@@ -0,0 +1,117 @@
+// Copyright (c) 2015 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 <cstdio>
+#include <cstdlib>
+
+#include <windows.h>
+
+#include "../shared/WindowsSecurity.h"
+#include "../shared/WinptyException.h"
+
+const wchar_t *kPipeName = L"\\\\.\\pipe\\DebugServer";
+
+// A message may not be larger than this size.
+const int MSG_SIZE = 4096;
+
+static void usage(const char *program, int code) {
+    printf("Usage: %s [--everyone]\n"
+           "\n"
+           "Creates the named pipe %ls and reads messages.  Prints each\n"
+           "message to stdout.  By default, only the current user can send messages.\n"
+           "Pass --everyone to let anyone send a message.\n"
+           "\n"
+           "Use the WINPTY_DEBUG environment variable to enable winpty trace output.\n"
+           "(e.g. WINPTY_DEBUG=trace for the default trace output.)  Set WINPTYDBG=1\n"
+           "to enable trace with older winpty versions.\n",
+           program, kPipeName);
+    exit(code);
+}
+
+int main(int argc, char *argv[]) {
+    bool everyone = false;
+    for (int i = 1; i < argc; ++i) {
+        std::string arg = argv[i];
+        if (arg == "--everyone") {
+            everyone = true;
+        } else if (arg == "-h" || arg == "--help") {
+            usage(argv[0], 0);
+        } else {
+            usage(argv[0], 1);
+        }
+    }
+
+    SecurityDescriptor sd;
+    PSECURITY_ATTRIBUTES psa = nullptr;
+    SECURITY_ATTRIBUTES sa = {};
+    if (everyone) {
+        try {
+            sd = createPipeSecurityDescriptorOwnerFullControlEveryoneWrite();
+        } catch (const WinptyException &e) {
+            fprintf(stderr,
+                "error creating security descriptor: %ls\n", e.what());
+            exit(1);
+        }
+        sa.nLength = sizeof(sa);
+        sa.lpSecurityDescriptor = sd.get();
+        psa = &sa;
+    }
+
+    HANDLE serverPipe = CreateNamedPipeW(
+        kPipeName,
+        /*dwOpenMode=*/PIPE_ACCESS_DUPLEX | FILE_FLAG_FIRST_PIPE_INSTANCE,
+        /*dwPipeMode=*/PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE |
+            rejectRemoteClientsPipeFlag(),
+        /*nMaxInstances=*/1,
+        /*nOutBufferSize=*/MSG_SIZE,
+        /*nInBufferSize=*/MSG_SIZE,
+        /*nDefaultTimeOut=*/10 * 1000,
+        psa);
+
+    if (serverPipe == INVALID_HANDLE_VALUE) {
+        fprintf(stderr, "error: could not create %ls pipe: error %u\n",
+            kPipeName, static_cast<unsigned>(GetLastError()));
+        exit(1);
+    }
+
+    char msgBuffer[MSG_SIZE + 1];
+
+    while (true) {
+        if (!ConnectNamedPipe(serverPipe, nullptr)) {
+            fprintf(stderr, "error: ConnectNamedPipe failed\n");
+            fflush(stderr);
+            exit(1);
+        }
+        DWORD bytesRead = 0;
+        if (!ReadFile(serverPipe, msgBuffer, MSG_SIZE, &bytesRead, nullptr)) {
+            fprintf(stderr, "error: ReadFile on pipe failed\n");
+            fflush(stderr);
+            DisconnectNamedPipe(serverPipe);
+            continue;
+        }
+        msgBuffer[bytesRead] = '\n';
+        fwrite(msgBuffer, 1, bytesRead + 1, stdout);
+        fflush(stdout);
+
+        DWORD bytesWritten = 0;
+        WriteFile(serverPipe, "OK", 2, &bytesWritten, nullptr);
+        DisconnectNamedPipe(serverPipe);
+    }
+}