resolv.h

Go to the documentation of this file.

#ifndef _IPXE_RESOLV_H
#define _IPXE_RESOLV_H

/** @file
 *
 * Name resolution
 *
 */

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
FILE_SECBOOT ( PERMITTED );

#include <ipxe/interface.h>
#include <ipxe/tables.h>

struct sockaddr;

/** A name resolver */
struct resolver {
        /** Name of this resolver (e.g. "DNS") */
        const char *name;
        /** Start name resolution
         *
         * @v resolv            Name resolution interface
         * @v name              Name to resolve
         * @v sa                Socket address to complete
         * @ret rc              Return status code
         */
        int ( * resolv ) ( struct interface *resolv, const char *name,
                           struct sockaddr *sa );
};

/** Numeric resolver priority */
#define RESOLV_NUMERIC 01

/** Normal resolver priority */
#define RESOLV_NORMAL 02

/** Resolvers table */
#define RESOLVERS __table ( struct resolver, "resolvers" )

/** Register as a name resolver */
#define __resolver( resolv_order ) __table_entry ( RESOLVERS, resolv_order )

extern void resolv_done ( struct interface *intf, struct sockaddr *sa );
#define resolv_done_TYPE( object_type ) \
        typeof ( void ( object_type, struct sockaddr *sa ) )

extern int resolv ( struct interface *resolv, const char *name,
                    struct sockaddr *sa );

#endif /* _IPXE_RESOLV_H */