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am b24b6e14: Merge "resolv_cache: hide some libc private functions" into jb-mr2-dev

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* commit 'b24b6e1419382146f85571cdda27d48fb348141d':
  resolv_cache: hide some libc private functions
This commit is contained in:
Nick Kralevich 2013-03-29 16:55:20 -07:00 committed by Android Git Automerger
commit 5b661481a8
1 changed files with 15 additions and 0 deletions
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15
libc/private/resolv_cache.h
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@ -28,52 +28,64 @@
#ifndef _RESOLV_CACHE_H_
#define _RESOLV_CACHE_H_
#include <sys/cdefs.h>
struct __res_state;
struct resolv_cache; /* forward */
/* gets the cache for an interface. Set ifname argument to NULL or
* empty buffer ('\0') to get cache for default interface.
* returned cache might be NULL*/
__LIBC_HIDDEN__
extern struct resolv_cache* __get_res_cache(const char* ifname);
/* this gets called everytime we detect some changes in the DNS configuration
* and will flush the cache */
__LIBC_HIDDEN__
extern void _resolv_cache_reset( unsigned generation );
/* Gets the address of the n:th name server for the default interface
* Return length of address on success else 0.
* Note: The first name server is at n = 1 */
__LIBC_HIDDEN__
extern int _resolv_cache_get_nameserver(int n, char* addr, int addrLen);
/* Gets the address of the n:th name server for a certain interface
* Return length of address on success else 0.
* Note: The first name server is at n = 1 */
__LIBC_HIDDEN__
extern int _resolv_cache_get_nameserver_for_iface(const char* ifname, int n,
char* addr, int addrLen);
/* Gets addrinfo of the n:th name server associated with an interface.
* NULL is returned if no address if found.
* Note: The first name server is at n = 1. */
__LIBC_HIDDEN__
extern struct addrinfo* _resolv_cache_get_nameserver_addr_for_iface(const char* ifname, int n);
/* Gets addrinfo of the n:th name server associated with the default interface
* NULL is returned if no address if found.
* Note: The first name server is at n = 1. */
__LIBC_HIDDEN__
extern struct addrinfo* _resolv_cache_get_nameserver_addr(int n);
/* gets the address associated with the default interface */
__LIBC_HIDDEN__
extern struct in_addr* _resolv_get_addr_of_default_iface();
/* gets the address associated with the specified interface */
__LIBC_HIDDEN__
extern struct in_addr* _resolv_get_addr_of_iface(const char* ifname);
/* Copy the name of the default interface to provided buffer.
* Return length of buffer on success on failure -1 is returned */
__LIBC_HIDDEN__
extern int _resolv_get_default_iface(char* buff, int buffLen);
/* sets the name server addresses to the provided res_state structure. The
* name servers are retrieved from the cache which is associated
* with the interface to which the res_state structure is associated */
__LIBC_HIDDEN__
extern int _resolv_populate_res_for_iface(struct __res_state* statp);
typedef enum {
@ -83,6 +95,7 @@ typedef enum {
RESOLV_CACHE_FOUND /* the cache found the answer */
} ResolvCacheStatus;
__LIBC_HIDDEN__
extern ResolvCacheStatus
_resolv_cache_lookup( struct resolv_cache* cache,
const void* query,
@ -94,6 +107,7 @@ _resolv_cache_lookup( struct resolv_cache* cache,
/* add a (query,answer) to the cache, only call if _resolv_cache_lookup
* did return RESOLV_CACHE_NOTFOUND
*/
__LIBC_HIDDEN__
extern void
_resolv_cache_add( struct resolv_cache* cache,
const void* query,
@ -102,6 +116,7 @@ _resolv_cache_add( struct resolv_cache* cache,
int answerlen );
/* Notify the cache a request failed */
__LIBC_HIDDEN__
extern void
_resolv_cache_query_failed( struct resolv_cache* cache,
const void* query,