153 lines
4.6 KiB
C++
153 lines
4.6 KiB
C++
#include <windows.h>
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#include "TestUtil.cc"
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#include "../shared/DebugClient.cc"
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const char *g_prefix = "";
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static void dumpHandles() {
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trace("%sSTDIN=0x%I64x STDOUT=0x%I64x STDERR=0x%I64x",
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g_prefix,
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(long long)GetStdHandle(STD_INPUT_HANDLE),
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(long long)GetStdHandle(STD_OUTPUT_HANDLE),
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(long long)GetStdHandle(STD_ERROR_HANDLE));
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}
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static HANDLE createBuffer() {
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// If sa isn't provided, the handle defaults to not-inheritable.
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SECURITY_ATTRIBUTES sa = {0};
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sa.nLength = sizeof(sa);
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sa.bInheritHandle = TRUE;
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trace("%sCreating a new buffer...", g_prefix);
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HANDLE conout = CreateConsoleScreenBuffer(
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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&sa,
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CONSOLE_TEXTMODE_BUFFER, NULL);
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trace("%sCreating a new buffer... 0x%I64x", g_prefix, (long long)conout);
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return conout;
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}
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static const char *successOrFail(BOOL ret) {
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return ret ? "ok" : "FAILED";
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}
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static void setConsoleActiveScreenBuffer(HANDLE conout) {
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trace("%sSetConsoleActiveScreenBuffer(0x%I64x) called...",
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g_prefix, (long long)conout);
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trace("%sSetConsoleActiveScreenBuffer(0x%I64x) called... %s",
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g_prefix, (long long)conout,
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successOrFail(SetConsoleActiveScreenBuffer(conout)));
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}
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static void writeTest(HANDLE conout, const char *msg) {
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char writeData[256];
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sprintf(writeData, "%s%s\n", g_prefix, msg);
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trace("%sWriting to 0x%I64x: '%s'...",
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g_prefix, (long long)conout, msg);
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DWORD actual = 0;
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BOOL ret = WriteConsoleA(conout, writeData, strlen(writeData), &actual, NULL);
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trace("%sWriting to 0x%I64x: '%s'... %s",
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g_prefix, (long long)conout, msg,
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successOrFail(ret && actual == strlen(writeData)));
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}
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static HANDLE startChildInSameConsole(const wchar_t *args, BOOL
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bInheritHandles=FALSE) {
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wchar_t program[1024];
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wchar_t cmdline[1024];
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GetModuleFileNameW(NULL, program, 1024);
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swprintf(cmdline, L"\"%ls\" %ls", program, args);
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STARTUPINFOW sui;
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PROCESS_INFORMATION pi;
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memset(&sui, 0, sizeof(sui));
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memset(&pi, 0, sizeof(pi));
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sui.cb = sizeof(sui);
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CreateProcessW(program, cmdline,
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NULL, NULL,
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/*bInheritHandles=*/bInheritHandles,
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/*dwCreationFlags=*/0,
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NULL, NULL,
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&sui, &pi);
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return pi.hProcess;
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}
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static HANDLE dup(HANDLE h, HANDLE targetProcess) {
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HANDLE h2 = INVALID_HANDLE_VALUE;
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BOOL ret = DuplicateHandle(
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GetCurrentProcess(), h,
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targetProcess, &h2,
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0, TRUE, DUPLICATE_SAME_ACCESS);
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trace("dup(0x%I64x) to process 0x%I64x... %s, 0x%I64x",
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(long long)h,
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(long long)targetProcess,
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successOrFail(ret),
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(long long)h2);
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return h2;
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}
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int main(int argc, char *argv[]) {
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if (argc == 1) {
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startChildProcess(L"parent");
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return 0;
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}
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if (!strcmp(argv[1], "parent")) {
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g_prefix = "parent: ";
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dumpHandles();
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HANDLE hChild = startChildInSameConsole(L"child");
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// Windows 10.
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HANDLE orig1 = GetStdHandle(STD_OUTPUT_HANDLE);
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HANDLE new1 = createBuffer();
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Sleep(2000);
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setConsoleActiveScreenBuffer(new1);
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// Handle duplication results to child process in same console:
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// - Windows XP: fails
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// - Windows 7 Ultimate SP1 32-bit: fails
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// - Windows Server 2008 R2 Datacenter SP1 64-bit: fails
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// - Windows 8 Enterprise 32-bit: succeeds
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// - Windows 10: succeeds
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HANDLE orig2 = dup(orig1, GetCurrentProcess());
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HANDLE new2 = dup(new1, GetCurrentProcess());
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dup(orig1, hChild);
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dup(new1, hChild);
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// The writes to orig1/orig2 are invisible. The writes to new1/new2
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// are visible.
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writeTest(orig1, "write to orig1");
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writeTest(orig2, "write to orig2");
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writeTest(new1, "write to new1");
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writeTest(new2, "write to new2");
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Sleep(120000);
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return 0;
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}
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if (!strcmp(argv[1], "child")) {
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g_prefix = "child: ";
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dumpHandles();
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Sleep(4000);
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for (unsigned int i = 0x1; i <= 0xB0; ++i) {
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char msg[256];
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sprintf(msg, "Write to handle 0x%x", i);
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HANDLE h = reinterpret_cast<HANDLE>(i);
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writeTest(h, msg);
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}
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Sleep(120000);
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return 0;
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}
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return 0;
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}
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