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/*
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 "commonheaders.h"
#include "netlib.h"
extern HANDLE hConnectionHeaderMutex,hSendEvent,hRecvEvent;
INT_PTR NetlibSend(WPARAM wParam,LPARAM lParam)
{
struct NetlibConnection *nlc=(struct NetlibConnection*)wParam;
NETLIBBUFFER *nlb=(NETLIBBUFFER*)lParam;
INT_PTR result;
if ( nlb == NULL ) {
SetLastError(ERROR_INVALID_PARAMETER);
return SOCKET_ERROR;
}
if ( !NetlibEnterNestedCS( nlc, NLNCS_SEND ))
return SOCKET_ERROR;
if ( nlc->usingHttpGateway && !( nlb->flags & MSG_RAW )) {
if ( !( nlb->flags & MSG_NOHTTPGATEWAYWRAP ) && nlc->nlu->user.pfnHttpGatewayWrapSend ) {
NetlibDumpData( nlc, ( PBYTE )nlb->buf, nlb->len, 1, nlb->flags );
result = nlc->nlu->user.pfnHttpGatewayWrapSend(( HANDLE )nlc, ( PBYTE )nlb->buf, nlb->len, nlb->flags | MSG_NOHTTPGATEWAYWRAP, NetlibSend );
}
else result = NetlibHttpGatewayPost( nlc, nlb->buf, nlb->len, nlb->flags );
}
else {
NetlibDumpData( nlc, ( PBYTE )nlb->buf, nlb->len, 1, nlb->flags );
if (nlc->hSsl)
result = si.write( nlc->hSsl, nlb->buf, nlb->len );
else
result = send( nlc->s, nlb->buf, nlb->len, nlb->flags & 0xFFFF );
}
NetlibLeaveNestedCS( &nlc->ncsSend );
if ((( THook* )hSendEvent)->subscriberCount ) {
NETLIBNOTIFY nln = { nlb, result };
CallHookSubscribers( hSendEvent, (WPARAM)&nln, (LPARAM)&nlc->nlu->user );
}
return result;
}
INT_PTR NetlibRecv(WPARAM wParam,LPARAM lParam)
{
struct NetlibConnection *nlc = (struct NetlibConnection*)wParam;
NETLIBBUFFER* nlb = ( NETLIBBUFFER* )lParam;
int recvResult;
if ( nlb == NULL ) {
SetLastError( ERROR_INVALID_PARAMETER );
return SOCKET_ERROR;
}
if ( !NetlibEnterNestedCS( nlc, NLNCS_RECV ))
return SOCKET_ERROR;
if ( nlc->usingHttpGateway && !( nlb->flags & MSG_RAW ))
recvResult = NetlibHttpGatewayRecv( nlc, nlb->buf, nlb->len, nlb->flags );
else
{
if (nlc->hSsl)
recvResult = si.read( nlc->hSsl, nlb->buf, nlb->len, (nlb->flags & MSG_PEEK) != 0 );
else
recvResult = recv( nlc->s, nlb->buf, nlb->len, nlb->flags & 0xFFFF );
}
NetlibLeaveNestedCS( &nlc->ncsRecv );
if (recvResult <= 0)
return recvResult;
NetlibDumpData(nlc, (PBYTE)nlb->buf, recvResult, 0, nlb->flags);
if ((nlb->flags & MSG_PEEK) == 0 && ((THook*)hRecvEvent)->subscriberCount)
{
NETLIBNOTIFY nln = { nlb, recvResult };
CallHookSubscribers(hRecvEvent, (WPARAM)&nln, (LPARAM)&nlc->nlu->user);
}
return recvResult;
}
static int ConnectionListToSocketList(HANDLE *hConns, fd_set *fd, int& pending)
{
struct NetlibConnection *nlcCheck;
int i;
FD_ZERO(fd);
for(i=0;hConns[i] && hConns[i]!=INVALID_HANDLE_VALUE && i<FD_SETSIZE;i++) {
nlcCheck=(struct NetlibConnection*)hConns[i];
if (nlcCheck->handleType!=NLH_CONNECTION && nlcCheck->handleType!=NLH_BOUNDPORT) {
SetLastError(ERROR_INVALID_DATA);
return 0;
}
FD_SET(nlcCheck->s,fd);
if ( si.pending( nlcCheck->hSsl ))
pending++;
}
return 1;
}
INT_PTR NetlibSelect(WPARAM,LPARAM lParam)
{
NETLIBSELECT *nls=(NETLIBSELECT*)lParam;
if (nls==NULL || nls->cbSize!=sizeof(NETLIBSELECT)) {
SetLastError(ERROR_INVALID_PARAMETER);
return SOCKET_ERROR;
}
TIMEVAL tv;
tv.tv_sec=nls->dwTimeout/1000;
tv.tv_usec=(nls->dwTimeout%1000)*1000;
int pending = 0;
fd_set readfd, writefd, exceptfd;
WaitForSingleObject(hConnectionHeaderMutex,INFINITE);
if (!ConnectionListToSocketList(nls->hReadConns,&readfd,pending)
|| !ConnectionListToSocketList(nls->hWriteConns,&writefd,pending)
|| !ConnectionListToSocketList(nls->hExceptConns,&exceptfd,pending)) {
ReleaseMutex(hConnectionHeaderMutex);
return SOCKET_ERROR;
}
ReleaseMutex(hConnectionHeaderMutex);
if (pending)
return 1;
return select(0,&readfd,&writefd,&exceptfd,nls->dwTimeout==INFINITE?NULL:&tv);
}
INT_PTR NetlibSelectEx(WPARAM, LPARAM lParam)
{
NETLIBSELECTEX *nls=(NETLIBSELECTEX*)lParam;
if (nls==NULL || nls->cbSize!=sizeof(NETLIBSELECTEX)) {
SetLastError(ERROR_INVALID_PARAMETER);
return SOCKET_ERROR;
}
TIMEVAL tv;
tv.tv_sec=nls->dwTimeout/1000;
tv.tv_usec=(nls->dwTimeout%1000)*1000;
WaitForSingleObject(hConnectionHeaderMutex,INFINITE);
int pending = 0;
fd_set readfd,writefd,exceptfd;
if (!ConnectionListToSocketList(nls->hReadConns,&readfd,pending)
|| !ConnectionListToSocketList(nls->hWriteConns,&writefd,pending)
|| !ConnectionListToSocketList(nls->hExceptConns,&exceptfd,pending)) {
ReleaseMutex(hConnectionHeaderMutex);
return SOCKET_ERROR;
}
ReleaseMutex(hConnectionHeaderMutex);
int rc = (pending) ? pending : select(0,&readfd,&writefd,&exceptfd,nls->dwTimeout==INFINITE?NULL:&tv);
WaitForSingleObject(hConnectionHeaderMutex,INFINITE);
/* go thru each passed HCONN array and grab its socket handle, then give it to FD_ISSET()
to see if an event happened for that socket, if it has it will be returned as TRUE (otherwise not)
This happens for read/write/except */
struct NetlibConnection *conn=NULL;
int j;
for (j=0; j<FD_SETSIZE; j++) {
conn=(struct NetlibConnection*)nls->hReadConns[j];
if (conn==NULL || conn==INVALID_HANDLE_VALUE) break;
if (si.pending(conn->hSsl))
nls->hReadStatus[j] = TRUE;
if (conn->usingHttpGateway && conn->nlhpi.szHttpGetUrl == NULL && conn->dataBuffer == NULL)
nls->hReadStatus[j] = (conn->pHttpProxyPacketQueue != NULL);
else
nls->hReadStatus[j] = FD_ISSET(conn->s,&readfd);
}
for (j=0; j<FD_SETSIZE; j++) {
conn=(struct NetlibConnection*)nls->hWriteConns[j];
if (conn==NULL || conn==INVALID_HANDLE_VALUE) break;
nls->hWriteStatus[j] = FD_ISSET(conn->s,&writefd);
}
for (j=0; j<FD_SETSIZE; j++) {
conn=(struct NetlibConnection*)nls->hExceptConns[j];
if (conn==NULL || conn==INVALID_HANDLE_VALUE) break;
nls->hExceptStatus[j] = FD_ISSET(conn->s,&exceptfd);
}
ReleaseMutex(hConnectionHeaderMutex);
return rc;
}
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