118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/* Benjamin DELPY `gentilkiwi`
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https://blog.gentilkiwi.com
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benjamin@gentilkiwi.com
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Licence : https://creativecommons.org/licenses/by/4.0/
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*/
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#include "kull_m_pipe.h"
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BOOL kull_m_pipe_server(LPCWCHAR pipeName, HANDLE *phPipe)
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{
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BOOL status = FALSE;
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*phPipe = CreateNamedPipe(pipeName, PIPE_ACCESS_DUPLEX, PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT, 1, 0, 0, NMPWAIT_USE_DEFAULT_WAIT, NULL);
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if(!(status = (*phPipe && (*phPipe != INVALID_HANDLE_VALUE))))
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PRINT_ERROR_AUTO(L"CreateNamedPipe");
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return status;
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}
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BOOL kull_m_pipe_server_connect(HANDLE hPipe)
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{
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BOOL status = FALSE;
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if(!(status = (ConnectNamedPipe(hPipe, NULL) || (GetLastError() == ERROR_PIPE_CONNECTED))))
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PRINT_ERROR_AUTO(L"ConnectNamedPipe");
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return status;
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}
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BOOL kull_m_pipe_client(LPCWCHAR pipeName, PHANDLE phPipe)
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{
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BOOL status = FALSE;
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DWORD dwMode = PIPE_READMODE_MESSAGE | PIPE_WAIT;
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if(WaitNamedPipe(pipeName, NMPWAIT_USE_DEFAULT_WAIT))
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{
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*phPipe = CreateFile(pipeName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
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if(*phPipe && (*phPipe != INVALID_HANDLE_VALUE))
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{
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if(!(status = SetNamedPipeHandleState(*phPipe, &dwMode, NULL, NULL)))
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PRINT_ERROR_AUTO(L"SetNamedPipeHandleState");
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}
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else PRINT_ERROR_AUTO(L"CreateFile");
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}
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else PRINT_ERROR_AUTO(L"WaitNamedPipe");
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return status;
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}
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BOOL kull_m_pipe_read(HANDLE hPipe, LPBYTE *buffer, DWORD *size)
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{
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BOOL status = FALSE;
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DWORD szReaded, szBuffer = 0;
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BYTE * tmpBuffer = NULL; DWORD szTmpBuffer = 0;
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*size = 0;
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*buffer = NULL;
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do
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{
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if(*buffer)
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{
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tmpBuffer = *buffer;
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szTmpBuffer = szBuffer;
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}
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szBuffer += 2048;
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if(*buffer = (BYTE *) LocalAlloc(LPTR, szBuffer))
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{
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if(tmpBuffer)
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{
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RtlCopyMemory(*buffer, tmpBuffer, szTmpBuffer);
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tmpBuffer = (BYTE *) LocalFree(tmpBuffer);
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}
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if(status = ReadFile(hPipe, *buffer + szTmpBuffer, 2048, &szReaded, NULL))
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{
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*size = szTmpBuffer + szReaded;
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break;
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}
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}
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} while(GetLastError() == ERROR_MORE_DATA);
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if(!status)
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{
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PRINT_ERROR_AUTO(L"ReadFile");
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*buffer = (BYTE *) LocalFree(*buffer);
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*size = 0;
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}
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return status;
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}
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BOOL kull_m_pipe_write(HANDLE hPipe, LPCVOID buffer, DWORD size)
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{
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BOOL status = FALSE;
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DWORD nbWritten;
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if(WriteFile(hPipe, buffer, size, &nbWritten, NULL) && (size == nbWritten))
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{
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if(!(status = FlushFileBuffers(hPipe)))
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PRINT_ERROR_AUTO(L"FlushFileBuffers");
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}
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else PRINT_ERROR_AUTO(L"WriteFile");
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return status;
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}
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BOOL kull_m_pipe_close(PHANDLE phPipe)
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{
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BOOL status = FALSE;
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DWORD flags = 0;
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if(*phPipe && (*phPipe != INVALID_HANDLE_VALUE))
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{
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if(GetNamedPipeInfo(*phPipe, &flags, NULL, NULL, NULL) || (GetLastError() == ERROR_PIPE_NOT_CONNECTED))
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{
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if(flags & PIPE_SERVER_END)
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{
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if(!DisconnectNamedPipe(*phPipe))
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PRINT_ERROR_AUTO(L"DisconnectNamedPipe");
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}
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if(status = CloseHandle(*phPipe))
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*phPipe = INVALID_HANDLE_VALUE;
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else PRINT_ERROR_AUTO(L"CloseHandle");
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}
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else PRINT_ERROR_AUTO(L"GetNamedPipeInfo");
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}
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return status;
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} |