void aclAdd(unsigned long addr, unsigned long mask, int flags)
{
addr=ntohl(addr);
// printf("adding acl entry for %08x + %08x\n",addr,mask);
ACLEntry f={addr,mask,flags};
int os=g_acllist.GetSize();
g_acllist.Resize(os+sizeof(f));
memcpy((char *)g_acllist.Get()+os,&f,sizeof(f));
}
int aclGet(unsigned long addr)
{
addr=ntohl(addr);
ACLEntry *p=(ACLEntry *)g_acllist.Get();
int x=g_acllist.GetSize()/sizeof(ACLEntry);
while (x--)
{
// printf("comparing %08x to %08x\n",addr,p->addr);
if ((addr & p->mask) == p->addr) return p->flags;
p++;
}
return 0;
}
static int LoadDefaultConfig(void **data, const char *desc)
{
static WDL_HeapBuf m_hb;
const char *fn=get_ini_file();
int l=GetPrivateProfileInt(desc,"default_size",0,fn);
if (l<1) return 0;
if (GetPrivateProfileStruct(desc,"default",m_hb.Resize(l),l,fn))
{
*data = m_hb.Get();
return l;
}
return 0;
}
WDL_SHM_Connection::WDL_SHM_Connection(bool whichChan,
const char *uniquestring, // identify
int shmsize, // bytes, whoever opens first decides
int timeout_sec
)
{
m_timeout_sec=timeout_sec;
m_last_recvt=time(NULL)+2; // grace period
{ // make shmsize the next power of two
int a = shmsize;
shmsize=2;
while (shmsize < SHM_MINSIZE || shmsize<a) shmsize*=2;
}
m_file=INVALID_HANDLE_VALUE;
m_filemap=NULL;
m_mem=NULL;
m_events[0]=m_events[1]=NULL;
m_whichChan=whichChan ? 1 : 0;
char buf[512];
GetTempPath(sizeof(buf)-4,buf);
if (!buf[0]) lstrcpyn(buf,"C:\\",32);
if (buf[strlen(buf)-1] != '/' && buf[strlen(buf)-1] != '\\') strcat(buf,"\\");
m_tempfn.Set(buf);
m_tempfn.Append("WDL_SHM_");
m_tempfn.Append(uniquestring);
m_tempfn.Append(".tmp");
HANDLE mutex=NULL;
{
WDL_String tmp;
tmp.Set("WDL_SHM_");
tmp.Append(uniquestring);
tmp.Append(".mutex");
mutex = CreateMutex(NULL,FALSE,tmp.Get());
}
if (mutex) WaitForSingleObject(mutex,INFINITE);
DeleteFile(m_tempfn.Get()); // this is designed to fail if another process has it locked
m_file=CreateFile(m_tempfn.Get(),GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE ,
NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_TEMPORARY,NULL);
int mapsize;
if (m_file != INVALID_HANDLE_VALUE &&
((mapsize=GetFileSize(m_file,NULL)) < SHM_HDRSIZE+SHM_MINSIZE*2 ||
mapsize == 0xFFFFFFFF))
{
WDL_HeapBuf tmp;
memset(tmp.Resize(shmsize*2 + SHM_HDRSIZE),0,shmsize*2 + SHM_HDRSIZE);
((int *)tmp.Get())[0] = shmsize;
DWORD d;
WriteFile(m_file,tmp.Get(),tmp.GetSize(),&d,NULL);
}
if (mutex)
{
ReleaseMutex(mutex);
CloseHandle(mutex);
}
if (m_file!=INVALID_HANDLE_VALUE)
m_filemap=CreateFileMapping(m_file,NULL,PAGE_READWRITE,0,0,NULL);
if (m_filemap)
{
m_mem=(unsigned char *)MapViewOfFile(m_filemap,FILE_MAP_WRITE,0,0,0);
WDL_String tmp;
if (!(GetVersion()&0x80000000)) tmp.Set("Global\\WDL_SHM_");
else tmp.Set("WDL_SHM_");
tmp.Append(uniquestring);
tmp.Append(".1");
m_events[0]=CreateEvent(NULL,false,false,tmp.Get());
tmp.Get()[strlen(tmp.Get())-1]++;
m_events[1]=CreateEvent(NULL,false,false,tmp.Get());
}
}
