void Probe(int Threshold)
{
static const char *Servers[] = {
"8.8.8.8",
"208.67.220.220",
"199.85.126.10",
"4.2.2.1",
"8.26.56.26",
};
static const char *Domains[] = {
"www.youtube.com",
"www.googlevideo.com",
"twitter.com",
"www.facebook.com"
};
int Pass = 0;
StringList l;
StringChunk s;
StringList_Init(&l, NULL, ',');
StringChunk_Init(&s, NULL);
while( Threshold > 0 )
{
printf("; Pass %d:\n", Pass + 1);
if( ProbeFakeAddresses(Servers[Pass % (sizeof(Servers) / sizeof(const char *))], Domains[Pass % (sizeof(Domains) / sizeof(const char *))], &l) > 0 )
{
const char *Itr = NULL;
int NumberOfNew = 0;
Itr = StringList_GetNext(&l, NULL);
while( Itr != NULL )
{
if( StringChunk_Match_NoWildCard(&s, Itr, NULL, NULL) == FALSE )
{
StringChunk_Add(&s, Itr, NULL, 0);
printf("%s\n", Itr);
++NumberOfNew;
}
Itr = StringList_GetNext(&l, Itr);
}
if( NumberOfNew == 0 )
{
--Threshold;
} else {
Threshold += 2;
}
} else {
--Threshold;
}
StringList_Clear(&l);
++Pass;
}
StringList_Free(&l);
StringChunk_Free(&s, TRUE);
}
static int LoadGfwListFile(const char *File, BOOL NeedBase64Decode)
{
FILE *fp;
ReadLineStatus Status;
char Buffer[256];
int Count = 0;
GFWListContainer *Container;
if( (NeedBase64Decode == TRUE) && (Base64Decode(File) != 0) )
{
return -1;
}
fp = fopen(File, "r");
if( fp == NULL )
{
return -2;
}
Container = SafeMalloc(sizeof(GFWListContainer));
if( Container == NULL )
{
return -3;
}
if( StringChunk_Init(&(Container -> GFWList), NULL) != 0 )
{
return -4;
}
while(TRUE)
{
Status = ReadLine(fp, Buffer, sizeof(Buffer));
switch(Status)
{
case READ_FAILED_OR_END:
goto DONE;
break;
case READ_DONE:
if( ParseGfwListItem(Buffer, Container) == TRUE )
{
++Count;
}
break;
case READ_TRUNCATED:
INFO("GFWList Item is too long : %s\n", Buffer);
ReadLine_GoToNextLine(fp);
break;
}
}
DONE:
fclose(fp);
if( Count == 0 )
{
StringChunk_Free((StringChunk *)&(Container -> GFWList), TRUE);
SafeFree(Container);
return -4;
}
/* Evict old container */
RWLock_WrLock(GFWListLock);
if( MainContainer != NULL )
{
StringChunk_Free((StringChunk *)&(MainContainer -> GFWList), TRUE);
SafeFree((void *)MainContainer);
}
MainContainer = Container;
RWLock_UnWLock(GFWListLock);
return Count;
}