/* Miranda IM: the free IM client for Microsoft* Windows* Copyright 2000-2009 Miranda ICQ/IM project, all portions of this codebase are copyrighted to the people listed in contributors.txt. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "..\..\core\commonheaders.h" #include "netlib.h" INT_PTR NetlibPacketRecverCreate(WPARAM wParam, LPARAM lParam) { struct NetlibConnection *nlc = (struct NetlibConnection*)wParam; struct NetlibPacketRecver *nlpr; if (GetNetlibHandleType(nlc) != NLH_CONNECTION || lParam == 0) { SetLastError(ERROR_INVALID_PARAMETER); return (INT_PTR)(struct NetlibPacketRecver*)NULL; } nlpr = (struct NetlibPacketRecver*)mir_calloc(sizeof(struct NetlibPacketRecver)); if (nlpr == NULL) { SetLastError(ERROR_OUTOFMEMORY); return (INT_PTR)(struct NetlibPacketRecver*)NULL; } nlpr->handleType = NLH_PACKETRECVER; nlpr->nlc = nlc; nlpr->packetRecver.cbSize = sizeof(nlpr->packetRecver); nlpr->packetRecver.bufferSize = lParam; nlpr->packetRecver.buffer = (PBYTE)mir_alloc(nlpr->packetRecver.bufferSize); nlpr->packetRecver.bytesUsed = 0; nlpr->packetRecver.bytesAvailable = 0; return (INT_PTR)nlpr; } INT_PTR NetlibPacketRecverGetMore(WPARAM wParam, LPARAM lParam) { struct NetlibPacketRecver *nlpr = (struct NetlibPacketRecver*)wParam; NETLIBPACKETRECVER *nlprParam = (NETLIBPACKETRECVER*)lParam; INT_PTR recvResult; if (GetNetlibHandleType(nlpr) != NLH_PACKETRECVER || nlprParam == NULL || nlprParam->cbSize != sizeof(NETLIBPACKETRECVER) || nlprParam->bytesUsed>nlpr->packetRecver.bytesAvailable) { SetLastError(ERROR_INVALID_PARAMETER); return SOCKET_ERROR; } if (Miranda_Terminated()) { /* HACK: Lame, break while loops of protocols that can't kill their while loops, (cough, ICQ, cough) */ SetLastError(ERROR_TIMEOUT); return SOCKET_ERROR; } nlpr->packetRecver.dwTimeout = nlprParam->dwTimeout; if (nlprParam->bytesUsed == 0) { if (nlpr->packetRecver.bytesAvailable == nlpr->packetRecver.bufferSize) { nlpr->packetRecver.bytesAvailable = 0; NetlibLogf(nlpr->nlc->nlu, "Packet recver: packet overflowed buffer, ditching"); } } else { MoveMemory(nlpr->packetRecver.buffer, nlpr->packetRecver.buffer+nlprParam->bytesUsed, nlpr->packetRecver.bytesAvailable-nlprParam->bytesUsed); nlpr->packetRecver.bytesAvailable-=nlprParam->bytesUsed; } if (nlprParam->dwTimeout != INFINITE) { if ( !si.pending(nlpr->nlc->hSsl) && WaitUntilReadable(nlpr->nlc->s, nlprParam->dwTimeout) <= 0) { *nlprParam = nlpr->packetRecver; return SOCKET_ERROR; } } recvResult = NLRecv(nlpr->nlc, (char*)nlpr->packetRecver.buffer+nlpr->packetRecver.bytesAvailable, nlpr->packetRecver.bufferSize-nlpr->packetRecver.bytesAvailable, 0); if (recvResult>0) nlpr->packetRecver.bytesAvailable+=recvResult; *nlprParam = nlpr->packetRecver; return recvResult; }