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*  Copyright 2005 Alt-N Technologies, Ltd. 
*  Licensed under the Apache License, Version 2.0 (the "License"); 
*  you may not use this file except in compliance with the License. 
*  You may obtain a copy of the License at 
*      http://www.apache.org/licenses/LICENSE-2.0 
*  This code incorporates intellectual property owned by Yahoo! and licensed 
*  pursuant to the Yahoo! DomainKeys Patent License Agreement.
*  Unless required by applicable law or agreed to in writing, software 
*  distributed under the License is distributed on an "AS IS" BASIS, 
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
*  See the License for the specific language governing permissions and 
*  limitations under the License.

// DNS query routines


#define DNSMSG_HDR_ID               0
#define DNSMSG_HDR_CODES            1
#define DNSMSG_HDR_QDCOUNT          2
#define DNSMSG_HDR_ANCOUNT          3
#define DNSMSG_HDR_NSCOUNT          4
#define     DNSMSG_HDR_ARCOUNT            5
#define DNSMSG_HDR_SIZE             6

#define DNSMSG_MAX_LABEL            64
#define DNSMSG_MAX_UDP_SIZE         512


#define C_IN            1
#define T_TXT           16

#define EMSGSIZE                    1
#define ENOENT                            2

typedef unsigned char u_char;
typedef unsigned int u_int;

int   res_query(const char *, int, int, u_char *, int);

int dn_expand(const u_char *, const u_char *, const u_char *, char *, int);

#endif // DNSRESOLV_H

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