linux/fs/nfs/dns_resolve.h
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   1/*
   2 * Resolve DNS hostnames into valid ip addresses
   3 */
   4#ifndef __LINUX_FS_NFS_DNS_RESOLVE_H
   5#define __LINUX_FS_NFS_DNS_RESOLVE_H
   6
   7#define NFS_DNS_HOSTNAME_MAXLEN (128)
   8
   9
  10#ifdef CONFIG_NFS_USE_KERNEL_DNS
  11static inline int nfs_dns_resolver_init(void)
  12{
  13        return 0;
  14}
  15
  16static inline void nfs_dns_resolver_destroy(void)
  17{}
  18
  19static inline int nfs_dns_resolver_cache_init(struct net *net)
  20{
  21        return 0;
  22}
  23
  24static inline void nfs_dns_resolver_cache_destroy(struct net *net)
  25{}
  26#else
  27extern int nfs_dns_resolver_init(void);
  28extern void nfs_dns_resolver_destroy(void);
  29extern int nfs_dns_resolver_cache_init(struct net *net);
  30extern void nfs_dns_resolver_cache_destroy(struct net *net);
  31#endif
  32
  33extern ssize_t nfs_dns_resolve_name(struct net *net, char *name,
  34                size_t namelen, struct sockaddr *sa, size_t salen);
  35
  36#endif
  37
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