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/* SPDX-License-Identifier: LGPL-2.1 */
/*
* DNS Resolver upcall management for CIFS DFS
* Handles host name to IP address resolution
*
* Copyright (c) International Business Machines Corp., 2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
*/
#ifndef _DNS_RESOLVE_H
#define _DNS_RESOLVE_H
#include <linux/net.h>
#include "cifsglob.h"
#include "cifsproto.h"
#ifdef __KERNEL__
int dns_resolve_name(const char *dom, const char *name,
size_t namelen, struct sockaddr *ip_addr);
static inline int dns_resolve_unc(const char *dom, const char *unc,
struct sockaddr *ip_addr)
{
const char *name;
size_t namelen;
if (!unc || strlen(unc) < 3)
return -EINVAL;
extract_unc_hostname(unc, &name, &namelen);
if (!namelen)
return -EINVAL;
return dns_resolve_name(dom, name, namelen, ip_addr);
}
#endif /* KERNEL */
#endif /* _DNS_RESOLVE_H */
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