mirror of
https://github.com/unrealircd/unrealircd.git
synced 2026-07-06 09:53:12 +02:00
Bram Matthys
548d66d26c
This reformats entire UnrealIRCd source code, according to .clang-format which was previously commited. This is reproducable using clang-format version 21.1.8. These are only visual changes, they have no effect on code. This commit will be added to .git-blame-ignore-revs so 'git blame' and the similar blame view on GitHub will ignore this commit.
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
typedef enum {
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DNSREQ_CLIENT = 1,
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DNSREQ_LINKCONF = 2,
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DNSREQ_CONNECT = 3
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} DNSReqType;
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typedef struct DNSReq DNSReq;
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/** DNS Request that is ongoing - used in src/dns.c.
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* Depending on the request type, some fields are filled in:
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* .client: DNSREQ_CLIENT, DNSREQ_CONNECT
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* .link: DNSREQ_LINKCONF, DNSREQ_CONNECT
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*/
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struct DNSReq {
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DNSReq *prev, *next;
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char *name; /**< Name being resolved (only for DNSREQ_LINKCONF and DNSREQ_CONNECT) */
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char ipv6; /**< Resolving for ipv6 or ipv4? */
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DNSReqType type; /**< DNS Request type (DNSREQ_*) */
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Client *client; /**< Client the request is for, NULL if client died OR unavailable */
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ConfigItem_link *linkblock; /**< Linkblock */
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};
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typedef struct DNSCache DNSCache;
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/** DNS Cache entry - used in src/dns.c */
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struct DNSCache {
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DNSCache *prev, *next; /**< Previous and next in linked list */
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DNSCache *hprev, *hnext; /**< Previous and next in hash list */
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char *name; /**< The hostname */
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char *ip; /**< The IP address */
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time_t expires; /**< When record expires */
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};
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typedef struct DNSStats DNSStats;
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struct DNSStats {
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unsigned int cache_hits;
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unsigned int cache_misses;
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unsigned int cache_adds;
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};
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/** Time to keep cache records. */
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#define DNS_CACHE_TTL 600
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#define DNS_NEGCACHE_TTL 60
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/** Size of the DNS cache hash table. */
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#define DNS_HASH_SIZE 4096
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/** Max # of entries we want in our cache.
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* This:
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* a) prevents us from using too much memory, and
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* b) prevents us from keeping useless cache records
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*
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* A dnscache item is roughly ~120 bytes in size,
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* so 4096*120=480kb, which seems reasonable ;).
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*
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* Note that in most situations there will be far
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* fewer items, as the TTL is rather short.
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*/
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#define DNS_MAX_ENTRIES DNS_HASH_SIZE
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extern ares_channel resolver_channel_client;
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extern ares_channel resolver_channel_https;
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extern ares_channel resolver_channel_dnsbl;
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extern void init_resolver(int);
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struct hostent *unrealdns_doclient(Client *cptr);
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extern void unreal_gethostbyname_api(const char *name, int family, const char *callbackname, void *arg);
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