mirror of
https://github.com/unrealircd/unrealircd.git
synced 2026-06-28 21:06:37 +02:00
Bram Matthys
23116d344a
aChannel to Channel, and some more. Third party module coders will love this. But.. it makes things more logical and the doxygen output will look more clean and logical as well. (More changes will follow)
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/* OMG... OMG! WHAT AN INCLUDE HORROR !!! */
|
|
#include <ares.h>
|
|
#include <ares_version.h>
|
|
|
|
typedef enum {
|
|
DNSREQ_CLIENT = 1,
|
|
DNSREQ_LINKCONF = 2,
|
|
DNSREQ_CONNECT = 3
|
|
} DNSReqType;
|
|
|
|
typedef struct DNSReq DNSReq;
|
|
|
|
/* Depending on the request type, some fields are filled in:
|
|
* cptr: DNSREQ_CLIENT, DNSREQ_CONNECT
|
|
* link: DNSREQ_LINKCONF, DNSREQ_CONNECT
|
|
*/
|
|
|
|
struct DNSReq {
|
|
DNSReq *prev, *next;
|
|
char *name; /**< Name being resolved (only for DNSREQ_LINKCONF and DNSREQ_CONNECT) */
|
|
char ipv6; /**< Resolving for ipv6 or ipv4? */
|
|
DNSReqType type; /**< DNS Request type (DNSREQ_*) */
|
|
Client *cptr; /**< Client the request is for, NULL if client died OR unavailable */
|
|
ConfigItem_link *linkblock; /**< Linkblock */
|
|
};
|
|
|
|
typedef struct DNSCache DNSCache;
|
|
|
|
struct DNSCache {
|
|
DNSCache *prev, *next; /**< Previous and next in linked list */
|
|
DNSCache *hprev, *hnext; /**< Previous and next in hash list */
|
|
char *name; /**< The hostname */
|
|
char *ip; /**< The IP address */
|
|
time_t expires; /**< When record expires */
|
|
};
|
|
|
|
typedef struct DNSStats DNSStats;
|
|
|
|
struct DNSStats {
|
|
unsigned int cache_hits;
|
|
unsigned int cache_misses;
|
|
unsigned int cache_adds;
|
|
};
|
|
|
|
/** Time to keep cache records. */
|
|
#define DNSCACHE_TTL 600
|
|
|
|
/** Size of the hash table (prime!).
|
|
* Consumes <this>*4 on ia32 and <this>*4 on 64 bit
|
|
* 241 seems a good bet.. which ~1k on ia32 and ~2k on ia64.
|
|
*/
|
|
#define DNS_HASH_SIZE 241
|
|
|
|
/** Max # of entries we want in our cache.
|
|
* This:
|
|
* a) prevents us from using too much memory, and
|
|
* b) prevents us from keeping useless cache records
|
|
*
|
|
* A dnscache item is roughly ~80 bytes in size (slightly more on x86),
|
|
* so 241*80=~20k, which seems reasonable ;).
|
|
*/
|
|
#define DNS_MAX_ENTRIES DNS_HASH_SIZE
|
|
|
|
|
|
extern ares_channel resolver_channel;
|
|
|
|
extern void init_resolver(int);
|
|
|
|
struct hostent *unrealdns_doclient(Client *cptr);
|
|
|
|
extern void unreal_gethostbyname(const char *name, int family, ares_host_callback callback, void *arg);
|
|
|