#ifndef _DNS_H_INCLUDED_
#define _DNS_H_INCLUDED_
#include <netinet/in.h>
#include <arpa/nameser.h>
#ifdef RESOLVE_H_NEEDS_STDIO_H
#include <stdio.h>
#endif
#include <resolv.h>
#ifndef GETSHORT
#define GETSHORT(s, cp) { \
unsigned char *t_cp = (u_char *)(cp); \
(s) = ((unsigned)t_cp[0] << 8) \
| ((unsigned)t_cp[1]) \
; \
(cp) += 2; \
}
#define GETLONG(l, cp) { \
unsigned char *t_cp = (u_char *)(cp); \
(l) = ((unsigned)t_cp[0] << 24) \
| ((unsigned)t_cp[1] << 16) \
| ((unsigned)t_cp[2] << 8) \
| ((unsigned)t_cp[3]) \
; \
(cp) += 4; \
}
#endif
#ifndef T_TXT
#define T_TXT 16
#endif
#include <vstring.h>
typedef struct DNS_FIXED {
unsigned short type;
unsigned short class;
unsigned int ttl;
unsigned length;
} DNS_FIXED;
typedef struct DNS_RR {
char *name;
unsigned short type;
unsigned short class;
unsigned int ttl;
unsigned short pref;
struct DNS_RR *next;
unsigned data_len;
char data[1];
} DNS_RR;
extern const char *dns_strerror(unsigned);
extern const char *dns_strtype(unsigned);
extern unsigned dns_type(const char *);
extern DNS_RR *dns_rr_create(const char *, DNS_FIXED *, unsigned,
const char *, unsigned);
extern void dns_rr_free(DNS_RR *);
extern DNS_RR *dns_rr_copy(DNS_RR *);
extern DNS_RR *dns_rr_append(DNS_RR *, DNS_RR *);
extern DNS_RR *dns_rr_sort(DNS_RR *, int (*) (DNS_RR *, DNS_RR *));
extern DNS_RR *dns_rr_shuffle(DNS_RR *);
extern int dns_lookup(const char *, unsigned, unsigned, DNS_RR **,
VSTRING *, VSTRING *);
extern int dns_lookup_types(const char *, unsigned, DNS_RR **,
VSTRING *, VSTRING *,...);
#define DNS_FAIL (-4)
#define DNS_NOTFOUND (-3)
#define DNS_RETRY (-2)
#define DNS_RECURSE (-1)
#define DNS_OK 0
#define DNS_NAME_LEN 1024
#endif