/* SPDX-License-Identifier: GPL-2.0 */
  /*
   * Resolve DNS hostnames into valid ip addresses
   */
  #ifndef __LINUX_FS_NFS_DNS_RESOLVE_H
  #define __LINUX_FS_NFS_DNS_RESOLVE_H
  
  #define NFS_DNS_HOSTNAME_MAXLEN	(128)
  
  
  #ifdef CONFIG_NFS_USE_KERNEL_DNS
  static inline int nfs_dns_resolver_init(void)
  {
  	return 0;
  }
  
  static inline void nfs_dns_resolver_destroy(void)
  {}
  
  static inline int nfs_dns_resolver_cache_init(struct net *net)
  {
  	return 0;
  }
  
  static inline void nfs_dns_resolver_cache_destroy(struct net *net)
  {}
  #else
  extern int nfs_dns_resolver_init(void);
  extern void nfs_dns_resolver_destroy(void);
  extern int nfs_dns_resolver_cache_init(struct net *net);
  extern void nfs_dns_resolver_cache_destroy(struct net *net);
  #endif
  
  extern ssize_t nfs_dns_resolve_name(struct net *net, char *name,
  		size_t namelen,	struct sockaddr *sa, size_t salen);
  
  #endif