FreeRDP/winpr/libwinpr/pipe/test/TestPipeCreateNamedPipeOverlapped.c

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#include <stdio.h>
#include <winpr/crt.h>
#include <winpr/pipe.h>
#include <winpr/file.h>
#include <winpr/tchar.h>
#include <winpr/winpr.h>
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#include <winpr/wlog.h>
#include <winpr/print.h>
#include <winpr/synch.h>
#include <winpr/thread.h>
#define PIPE_BUFFER_SIZE 32
static HANDLE ReadyEvent;
static LPTSTR lpszPipeName = _T("\\\\.\\pipe\\winpr_test_pipe_overlapped");
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static void* named_pipe_client_thread(void* arg)
{
DWORD status;
HANDLE hEvent;
HANDLE hNamedPipe;
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BYTE* lpReadBuffer;
BYTE* lpWriteBuffer;
BOOL fSuccess = FALSE;
OVERLAPPED overlapped;
DWORD nNumberOfBytesToRead;
DWORD nNumberOfBytesToWrite;
DWORD NumberOfBytesTransferred;
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WaitForSingleObject(ReadyEvent, INFINITE);
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hNamedPipe = CreateFile(lpszPipeName, GENERIC_READ | GENERIC_WRITE,
0, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
if (!hNamedPipe)
{
printf("Named Pipe CreateFile failure: NULL handle\n");
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goto finish;
}
if (hNamedPipe == INVALID_HANDLE_VALUE)
{
printf("Named Pipe CreateFile failure: INVALID_HANDLE_VALUE\n");
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goto finish;
}
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lpReadBuffer = (BYTE*) malloc(PIPE_BUFFER_SIZE);
lpWriteBuffer = (BYTE*) malloc(PIPE_BUFFER_SIZE);
if (!lpReadBuffer || !lpWriteBuffer)
{
printf("Error allocating memory\n");
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goto finish;
}
ZeroMemory(&overlapped, sizeof(OVERLAPPED));
if (!(hEvent = CreateEvent(NULL, TRUE, FALSE, NULL)))
{
printf("CreateEvent failure: (%d)\n", GetLastError());
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goto finish;
}
overlapped.hEvent = hEvent;
nNumberOfBytesToWrite = PIPE_BUFFER_SIZE;
FillMemory(lpWriteBuffer, PIPE_BUFFER_SIZE, 0x59);
fSuccess = WriteFile(hNamedPipe, lpWriteBuffer, nNumberOfBytesToWrite, NULL, &overlapped);
if (!fSuccess)
fSuccess = (GetLastError() == ERROR_IO_PENDING);
if (!fSuccess)
{
printf("Client NamedPipe WriteFile failure: %d\n", GetLastError());
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goto finish;
}
status = WaitForMultipleObjects(1, &hEvent, FALSE, INFINITE);
NumberOfBytesTransferred = 0;
fSuccess = GetOverlappedResult(hNamedPipe, &overlapped, &NumberOfBytesTransferred, TRUE);
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printf("Client GetOverlappedResult: fSuccess: %d NumberOfBytesTransferred: %d\n",
fSuccess, NumberOfBytesTransferred);
nNumberOfBytesToRead = PIPE_BUFFER_SIZE;
ZeroMemory(lpReadBuffer, PIPE_BUFFER_SIZE);
fSuccess = ReadFile(hNamedPipe, lpReadBuffer, nNumberOfBytesToRead, NULL, &overlapped);
if (!fSuccess)
fSuccess = (GetLastError() == ERROR_IO_PENDING);
if (!fSuccess)
{
printf("Client NamedPipe ReadFile failure: %d\n", GetLastError());
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goto finish;
}
status = WaitForMultipleObjects(1, &hEvent, FALSE, INFINITE);
NumberOfBytesTransferred = 0;
fSuccess = GetOverlappedResult(hNamedPipe, &overlapped, &NumberOfBytesTransferred, TRUE);
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printf("Client GetOverlappedResult: fSuccess: %d NumberOfBytesTransferred: %d\n",
fSuccess, NumberOfBytesTransferred);
printf("Client ReadFile (%d):\n", NumberOfBytesTransferred);
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winpr_HexDump("pipe.test", WLOG_DEBUG, lpReadBuffer, NumberOfBytesTransferred);
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finish:
free(lpReadBuffer);
free(lpWriteBuffer);
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if (hNamedPipe)
CloseHandle(hNamedPipe);
if (hEvent)
CloseHandle(hEvent);
return NULL;
}
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static void* named_pipe_server_thread(void* arg)
{
DWORD status;
HANDLE hEvent;
HANDLE hNamedPipe;
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BYTE* lpReadBuffer;
BYTE* lpWriteBuffer;
OVERLAPPED overlapped;
BOOL fSuccess = FALSE;
BOOL fConnected = FALSE;
DWORD nNumberOfBytesToRead;
DWORD nNumberOfBytesToWrite;
DWORD NumberOfBytesTransferred;
hNamedPipe = CreateNamedPipe(lpszPipeName,
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PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES, PIPE_BUFFER_SIZE, PIPE_BUFFER_SIZE, 0, NULL);
if (!hNamedPipe)
{
printf("CreateNamedPipe failure: NULL handle\n");
return NULL;
}
if (hNamedPipe == INVALID_HANDLE_VALUE)
{
printf("CreateNamedPipe failure: INVALID_HANDLE_VALUE (%d)\n", GetLastError());
return NULL;
}
SetEvent(ReadyEvent);
ZeroMemory(&overlapped, sizeof(OVERLAPPED));
if (!(hEvent = CreateEvent(NULL, TRUE, FALSE, NULL)))
{
printf("CreateEvent failure: (%d)\n", GetLastError());
return NULL;
}
overlapped.hEvent = hEvent;
fConnected = ConnectNamedPipe(hNamedPipe, &overlapped);
printf("ConnectNamedPipe status: %d\n", GetLastError());
if (!fConnected)
fConnected = (GetLastError() == ERROR_IO_PENDING);
status = WaitForMultipleObjects(1, &hEvent, FALSE, INFINITE);
NumberOfBytesTransferred = 0;
fSuccess = GetOverlappedResult(hNamedPipe, &overlapped, &NumberOfBytesTransferred, TRUE);
printf("Server GetOverlappedResult: fSuccess: %d NumberOfBytesTransferred: %d\n", fSuccess, NumberOfBytesTransferred);
if (!fConnected)
{
printf("ConnectNamedPipe failure: %d\n", GetLastError());
CloseHandle(hNamedPipe);
CloseHandle(hEvent);
return NULL;
}
lpReadBuffer = (BYTE*) calloc(1, PIPE_BUFFER_SIZE);
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lpWriteBuffer = (BYTE*) malloc(PIPE_BUFFER_SIZE);
if (!lpReadBuffer || !lpWriteBuffer)
{
printf("Error allocating memory\n");
free(lpReadBuffer);
free(lpWriteBuffer);
return NULL;
}
nNumberOfBytesToRead = PIPE_BUFFER_SIZE;
fSuccess = ReadFile(hNamedPipe, lpReadBuffer, nNumberOfBytesToRead, NULL, &overlapped);
if (!fSuccess)
fSuccess = (GetLastError() == ERROR_IO_PENDING);
if (!fSuccess)
{
printf("Server NamedPipe ReadFile failure: %d\n", GetLastError());
free(lpReadBuffer);
free(lpWriteBuffer);
CloseHandle(hNamedPipe);
CloseHandle(hEvent);
return NULL;
}
status = WaitForMultipleObjects(1, &hEvent, FALSE, INFINITE);
NumberOfBytesTransferred = 0;
fSuccess = GetOverlappedResult(hNamedPipe, &overlapped, &NumberOfBytesTransferred, TRUE);
printf("Server GetOverlappedResult: fSuccess: %d NumberOfBytesTransferred: %d\n", fSuccess, NumberOfBytesTransferred);
printf("Server ReadFile (%d):\n", NumberOfBytesTransferred);
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winpr_HexDump("pipe.test", WLOG_DEBUG, lpReadBuffer, NumberOfBytesTransferred);
nNumberOfBytesToWrite = PIPE_BUFFER_SIZE;
FillMemory(lpWriteBuffer, PIPE_BUFFER_SIZE, 0x45);
fSuccess = WriteFile(hNamedPipe, lpWriteBuffer, nNumberOfBytesToWrite, NULL, &overlapped);
if (!fSuccess)
fSuccess = (GetLastError() == ERROR_IO_PENDING);
if (!fSuccess)
{
printf("Server NamedPipe WriteFile failure: %d\n", GetLastError());
free(lpReadBuffer);
free(lpWriteBuffer);
CloseHandle(hNamedPipe);
CloseHandle(hEvent);
return NULL;
}
status = WaitForMultipleObjects(1, &hEvent, FALSE, INFINITE);
NumberOfBytesTransferred = 0;
fSuccess = GetOverlappedResult(hNamedPipe, &overlapped, &NumberOfBytesTransferred, TRUE);
printf("Server GetOverlappedResult: fSuccess: %d NumberOfBytesTransferred: %d\n", fSuccess, NumberOfBytesTransferred);
free(lpReadBuffer);
free(lpWriteBuffer);
CloseHandle(hNamedPipe);
CloseHandle(hEvent);
return NULL;
}
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int TestPipeCreateNamedPipeOverlapped(int argc, char* argv[])
{
HANDLE ClientThread;
HANDLE ServerThread;
if (!(ReadyEvent = CreateEvent(NULL, TRUE, FALSE, NULL)))
{
printf("CreateEvent failed: %d\n", GetLastError());
return -1;
}
if (!(ClientThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) named_pipe_client_thread, NULL, 0, NULL)))
{
printf("CreateThread (client) failed: %d\n", GetLastError());
return -1;
}
if (!(ServerThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) named_pipe_server_thread, NULL, 0, NULL)))
{
printf("CreateThread (server) failed: %d\n", GetLastError());
return -1;
}
WaitForSingleObject(ClientThread, INFINITE);
WaitForSingleObject(ServerThread, INFINITE);
/* FIXME: Since this function always returns 0 this test is very much useless */
return 0;
}