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|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
* E-mail:
* <brain@chatspike.net>
* <Craig@chatspike.net>
*
* Written by Craig Edwards, Craig McLure, and others.
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
/* Now with added unF! ;) */
using namespace std;
#include "inspircd.h"
#include "inspircd_io.h"
#include "inspircd_util.h"
#include "inspircd_config.h"
#include <unistd.h>
#include <fcntl.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <cstdio>
#include <time.h>
#include <string>
#ifdef GCC3
#include <ext/hash_map>
#else
#include <hash_map>
#endif
#include <map>
#include <sstream>
#include <vector>
#include <errno.h>
#include <deque>
#include <errno.h>
#include <unistd.h>
#include <sched.h>
#include "connection.h"
#include "users.h"
#include "servers.h"
#include "ctables.h"
#include "globals.h"
#include "modules.h"
#include "dynamic.h"
#include "wildcard.h"
#include "message.h"
#include "mode.h"
#include "commands.h"
#include "xline.h"
#include "inspstring.h"
#include "dnsqueue.h"
#include <stdlib.h>
#include <time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/poll.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include "dns.h"
#ifdef GCC3
#define nspace __gnu_cxx
#else
#define nspace std
#endif
extern int MaxWhoResults;
extern std::vector<Module*> modules;
extern std::vector<std::string> module_names;
extern std::vector<ircd_module*> factory;
extern std::vector<int> fd_reap;
extern int MODCOUNT;
namespace nspace
{
#ifdef GCC34
template<> struct hash<in_addr>
#else
template<> struct nspace::hash<in_addr>
#endif
{
size_t operator()(const struct in_addr &a) const
{
size_t q;
memcpy(&q,&a,sizeof(size_t));
return q;
}
};
#ifdef GCC34
template<> struct hash<string>
#else
template<> struct nspace::hash<string>
#endif
{
size_t operator()(const string &s) const
{
char a[MAXBUF];
static struct hash<const char *> strhash;
strlcpy(a,s.c_str(),MAXBUF);
strlower(a);
return strhash(a);
}
};
}
struct StrHashComp
{
bool operator()(const string& s1, const string& s2) const
{
char a[MAXBUF],b[MAXBUF];
strlcpy(a,s1.c_str(),MAXBUF);
strlcpy(b,s2.c_str(),MAXBUF);
return (strcasecmp(a,b) == 0);
}
};
struct InAddr_HashComp
{
bool operator()(const in_addr &s1, const in_addr &s2) const
{
size_t q;
size_t p;
memcpy(&q,&s1,sizeof(size_t));
memcpy(&p,&s2,sizeof(size_t));
return (q == p);
}
};
typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
typedef std::deque<command_t> command_table;
extern user_hash clientlist;
extern chan_hash chanlist;
extern user_hash whowas;
extern command_table cmdlist;
extern address_cache IP;
extern ClassVector Classes;
extern char DNSServer[MAXBUF];
class Lookup {
private:
DNS* resolver;
userrec* u;
public:
Lookup()
{
u = NULL;
resolver = NULL;
}
~Lookup()
{
if (resolver)
delete resolver;
}
Lookup(userrec* user)
{
u = user;
log(DEBUG,"New Lookup class with DNSServer set to '%s'",DNSServer);
resolver = new DNS(std::string(DNSServer));
resolver->ReverseLookup(std::string(user->host));
}
bool Done()
{
if (resolver->HasResult())
{
log(DEBUG,"resolver says result available!");
if (resolver->GetFD() != 0)
{
log(DEBUG,"Resolver FD is not 0");
std::string hostname = resolver->GetResult();
if (u)
{
log(DEBUG,"Applying hostname lookup to %s: %s",u->nick,hostname.c_str());
if (hostname != "")
{
strlcpy(u->host,hostname.c_str(),MAXBUF);
WriteServ(u->fd,"NOTICE Auth :Resolved your hostname: %s",hostname.c_str());
u->dns_done = true;
return true;
}
return false;
}
}
else
{
u->dns_done = true;
return true;
}
}
return false;
}
int GetFD()
{
if (u)
{
return u->fd;
}
else return 0;
}
};
typedef std::vector<Lookup> dns_queue;
dns_queue dnsq;
bool lookup_dns(userrec* u)
{
// place a new user into the queue...
log(DEBUG,"Queueing DNS lookup for %s",u->nick);
WriteServ(u->fd,"NOTICE Auth :Looking up your hostname...");
Lookup L(u);
dnsq.push_back(L);
return true;
}
void dns_poll()
{
// do we have items in the queue?
if (dnsq.size())
{
// are any ready, or stale?
if (dnsq[0].Done() || (!dnsq[0].GetFD()))
{
log(DEBUG,"****** DNS lookup for fd %d is complete. ******",dnsq[0].GetFD());
dnsq.erase(dnsq.begin());
}
}
}
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