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tag: djb/1.02
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#ifndef DNS_H
#define DNS_H
#include "stralloc.h"
#include "iopause.h"
#include "taia.h"
#define DNS_C_IN "\0\1"
#define DNS_C_ANY "\0\377"
#define DNS_T_A "\0\1"
#define DNS_T_NS "\0\2"
#define DNS_T_CNAME "\0\5"
#define DNS_T_SOA "\0\6"
#define DNS_T_PTR "\0\14"
#define DNS_T_HINFO "\0\15"
#define DNS_T_MX "\0\17"
#define DNS_T_TXT "\0\20"
#define DNS_T_RP "\0\21"
#define DNS_T_SIG "\0\30"
#define DNS_T_KEY "\0\31"
#define DNS_T_AAAA "\0\34"
#define DNS_T_AXFR "\0\374"
#define DNS_T_ANY "\0\377"
struct dns_transmit {
char *query; /* 0, or dynamically allocated */
unsigned int querylen;
char *packet; /* 0, or dynamically allocated */
unsigned int packetlen;
int s1; /* 0, or 1 + an open file descriptor */
int tcpstate;
unsigned int udploop;
unsigned int curserver;
struct taia deadline;
unsigned int pos;
char *servers;
char localip[4];
char qtype[2];
} ;
extern void dns_random_init(char *);
extern unsigned int dns_random(unsigned int);
extern void dns_sortip(char *,unsigned int);
extern void dns_domain_free(char **);
extern int dns_domain_copy(char **,char *);
extern unsigned int dns_domain_length(char *);
extern int dns_domain_equal(char *,char *);
extern char *dns_domain_suffix(char *,char *);
extern int dns_domain_fromdot(char **,char *,unsigned int);
extern int dns_domain_todot_cat(stralloc *,char *);
extern unsigned int dns_packet_copy(char *,unsigned int,unsigned int,char *,unsigned int);
extern unsigned int dns_packet_getname(char *,unsigned int,unsigned int,char **);
extern unsigned int dns_packet_skipname(char *,unsigned int,unsigned int);
extern int dns_packet_nameequal(char *,unsigned int,unsigned int,char *,unsigned int,unsigned int);
extern int dns_transmit_start(struct dns_transmit *,char *,int,char *,char *,char *);
extern void dns_transmit_free(struct dns_transmit *);
extern void dns_transmit_io(struct dns_transmit *,iopause_fd *,struct taia *);
extern int dns_transmit_get(struct dns_transmit *,iopause_fd *,struct taia *);
extern int dns_resolvconfip(char *);
extern int dns_resolve(char *,char *);
extern struct dns_transmit dns_resolve_tx;
extern int dns_ip4_packet(stralloc *,char *,unsigned int);
extern int dns_ip4(stralloc *,stralloc *);
extern int dns_name_packet(stralloc *,char *,unsigned int);
extern void dns_name4_domain(char *,char *);
#define DNS_NAME4_DOMAIN 31
extern int dns_name4(stralloc *,char *);
extern int dns_txt_packet(stralloc *,char *,unsigned int);
extern int dns_txt(stralloc *,stralloc *);
extern int dns_mx_packet(stralloc *,char *,unsigned int);
extern int dns_mx(stralloc *,stralloc *);
extern int dns_resolvconfrewrite(stralloc *);
extern int dns_ip4_qualify_rules(stralloc *,stralloc *,stralloc *,stralloc *);
extern int dns_ip4_qualify(stralloc *,stralloc *,stralloc *);
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