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#include "stdafx.h"
#include "SyslogSocket.h"
LPCTSTR CSyslogSocket::m_Priorities[8] = {
"emerg", "alert", "crit", "err", "warn", "notice", "info", "debug"
};
LPCTSTR CSyslogSocket::m_Facilities[24] = {
"kernel", "user", "mail", "daemon", "auth", "syslog", "lpr","news","uucp","cron","authpriv","reserved0","reserved1","reserved2","reserved3","reserved4","local0","local1","local2","local3","local4","local5","local6","local7"
};
BOOL CSyslogSocket::CreateListen(UINT port)
{
if(!Create(port?port:m_Port,SOCK_DGRAM))
return FALSE;
DoSelect();
return TRUE;
}
CSyslogSocket::CSyslogSocket()
{
m_Port=514;
m_MaxLine=2048;
m_DefaultPriority=MakePriority(priNotice,facUser);
memset(&m_DefaultHost,0,sizeof(m_DefaultHost));
m_DefaultHost.sin_family=AF_INET;
m_DefaultHost.sin_addr.s_addr=inet_addr("127.0.0.1");
m_DefaultHost.sin_port=m_Port;
}
void CSyslogSocket::DoSelect()
{
AsyncSelect(FD_CLOSE|FD_READ|(m_Queue.IsEmpty()?0:FD_WRITE));
}
void CSyslogSocket::OnReceive(int nErrorCode)
{
if(nErrorCode){
TRACE0("Error on receiving socket\n");
return;
}
SOCKADDR_IN sin;
int sinLength = sizeof(sin);
CString inputLine;
LPTSTR buff = inputLine.GetBuffer(m_MaxLine+1);
int bytes = ReceiveFrom(buff,m_MaxLine,(SOCKADDR*)&sin,&sinLength);
if(bytes==SOCKET_ERROR){
TRACE0("Failed to receive datagram\n");
return;
}
buff[bytes]=0;
inputLine.ReleaseBuffer();
UINT pri = m_DefaultPriority;
if(!inputLine.IsEmpty()){
if(inputLine[0]=='<'){
inputLine=inputLine.Mid(1);
CString newPri = inputLine.SpanIncluding("0123456789");
inputLine=inputLine.Mid(newPri.GetLength());
if((!inputLine.IsEmpty()) && inputLine[0]=='>')
inputLine=inputLine.Mid(1);
pri = atoi((LPCTSTR)newPri);
}
}
ASSERT(sin.sin_family==AF_INET);
Log(Priority(pri),Facility(pri),inputLine,&sin);
DoSelect();
}
void CSyslogSocket::Log(UINT pri,UINT fac,LPCTSTR line,SOCKADDR_IN *sin)
{
// Default implementation does nothing.
}
CString CSyslogSocket::Escape(LPCTSTR str)
{
CString rv;
while(*str){
int c = *(str++);
if(iscntrl(c)){
switch(c){
case '\n':
c=' ';
break;
case '\t':
c='\t';
break;
default:
rv+='^';
c|='@';
break;
}
}
rv+=(char)c;
}
return rv;
}
BOOL CSyslogSocket::LogTo(SOCKADDR_IN* sin,UINT pri,UINT fac,LPCTSTR str)
{
ASSERT(sin);
CString tmp;
tmp.Format("<%u>",MakePriority(pri,fac));
tmp+=str;
return LogTo(sin,tmp);
}
BOOL CSyslogSocket::LogTo(SOCKADDR_IN* sin,LPCTSTR str)
{
CSyslogOutgoingPacket *p = new CSyslogOutgoingPacket;
ASSERT(p);
memmove(&p->m_To,sin,sizeof(p->m_To));
p->m_What=str;
m_Queue.AddTail(p);
DoSelect();
return TRUE;
}
BOOL CSyslogSocket::LogTo(DWORD sinAddr,UINT sinPort,LPCTSTR str)
{
SOCKADDR_IN sin;
memset(&sin,0,sizeof(sin));
sin.sin_addr.s_addr=sinAddr;
sin.sin_port=sinPort;
sin.sin_family=AF_INET;
return LogTo(&sin,str);
}
BOOL CSyslogSocket::LogTo(DWORD sinAddr,UINT sinPort,UINT pri,UINT fac,LPCTSTR str)
{
SOCKADDR_IN sin;
memset(&sin,0,sizeof(sin));
sin.sin_addr.s_addr=sinAddr;
sin.sin_port=sinPort;
sin.sin_family=AF_INET;
return LogTo(&sin,pri,fac,str);
}
BOOL CSyslogSocket::LogTo(DWORD sinAddr,UINT pri,UINT fac,LPCTSTR str)
{
return LogTo(sinAddr,m_Port,pri,fac,str);
}
BOOL CSyslogSocket::LogTo(DWORD sinAddr,LPCTSTR str)
{
return LogTo(sinAddr,m_Port,str);
}
BOOL CSyslogSocket::LogTo(UINT pri,UINT fac,LPCTSTR str)
{
return LogTo(&m_DefaultHost,pri,fac,str);
}
BOOL CSyslogSocket::LogTo(LPCTSTR str)
{
return LogTo(&m_DefaultHost,str);
}
UINT CSyslogSocket::Facility(LPCTSTR str)
{
ASSERT(str);
for(int tmp=0;tmp<(sizeof(m_Facilities)/sizeof(m_Facilities[0]));tmp++)
if(!strcmp(str,m_Facilities[tmp]))
return tmp;
return facNone;
}
UINT CSyslogSocket::Priority(LPCTSTR str)
{
ASSERT(str);
for(int tmp=0;tmp<(sizeof(m_Priorities)/sizeof(m_Priorities[0]));tmp++)
if(!strcmp(str,m_Priorities[tmp]))
return tmp;
return priNone;
}
void CSyslogSocket::OnSend(int nErrorCode)
{
if(nErrorCode){
TRACE0("Error on sending socket\n");
return;
}
if(!m_Queue.IsEmpty()){
CSyslogOutgoingPacket *p = m_Queue.GetHead();
ASSERT(p);
m_Queue.RemoveHead();
int rv = SendTo((LPCTSTR)p->m_What,p->m_What.GetLength(),(SOCKADDR*)&p->m_To,sizeof(SOCKADDR_IN));
if(rv!=p->m_What.GetLength()){
TRACE0("Failed to send on socket\n");
}
delete p;
}
DoSelect();
}
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