Classes | Macros | Typedefs | Functions
rfc1035.h File Reference
#include "rfc2181.h"
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Classes

class  rfc1035_rr
 
struct  _rfc1035_query
 
struct  _rfc1035_message
 

Macros

#define RFC1035_MAXHOSTNAMESZ   RFC2181_MAXHOSTNAMELEN
 
#define RFC1035_DEFAULT_PACKET_SZ   512
 
#define RFC1035_TYPE_A   1
 
#define RFC1035_TYPE_CNAME   5
 
#define RFC1035_TYPE_PTR   12
 
#define RFC1035_CLASS_IN   1
 

Typedefs

typedef struct _rfc1035_query rfc1035_query
 
typedef struct _rfc1035_message rfc1035_message
 

Functions

SQUIDCEXTERN ssize_t rfc1035BuildAQuery (const char *hostname, char *buf, size_t sz, unsigned short qid, rfc1035_query *query, ssize_t edns_sz)
 
SQUIDCEXTERN ssize_t rfc1035BuildPTRQuery (const struct in_addr, char *buf, size_t sz, unsigned short qid, rfc1035_query *query, ssize_t edns_sz)
 
SQUIDCEXTERN void rfc1035SetQueryID (char *, unsigned short qid)
 
SQUIDCEXTERN int rfc1035MessageUnpack (const char *buf, size_t sz, rfc1035_message **answer)
 
SQUIDCEXTERN int rfc1035QueryCompare (const rfc1035_query *, const rfc1035_query *)
 
SQUIDCEXTERN void rfc1035RRDestroy (rfc1035_rr **rr, int n)
 
SQUIDCEXTERN void rfc1035MessageDestroy (rfc1035_message **message)
 
SQUIDCEXTERN const char * rfc1035ErrorMessage (int n)
 
SQUIDCEXTERN int rfc1035HeaderPack (char *buf, size_t sz, rfc1035_message *hdr)
 
SQUIDCEXTERN int rfc1035HeaderUnpack (const char *buf, size_t sz, unsigned int *off, rfc1035_message *h)
 
SQUIDCEXTERN int rfc1035QuestionPack (char *buf, size_t sz, const char *name, const unsigned short type, const unsigned short _class)
 
SQUIDCEXTERN int rfc1035RRPack (char *buf, size_t sz, const rfc1035_rr *RR)
 

Macro Definition Documentation

◆ RFC1035_CLASS_IN

#define RFC1035_CLASS_IN   1

Definition at line 96 of file rfc1035.h.

◆ RFC1035_DEFAULT_PACKET_SZ

#define RFC1035_DEFAULT_PACKET_SZ   512

Definition at line 34 of file rfc1035.h.

◆ RFC1035_MAXHOSTNAMESZ

#define RFC1035_MAXHOSTNAMESZ   RFC2181_MAXHOSTNAMELEN
RFC 1035 Section 3.1:
To simplify implementations, the total length of a domain name (i.e., label octets and label length octets) is restricted to 255 octets or less.
Clarified by RFC 2181 Section 11. (RFC2181_MAXHOSTNAMELEN)

Definition at line 32 of file rfc1035.h.

◆ RFC1035_TYPE_A

#define RFC1035_TYPE_A   1

Definition at line 93 of file rfc1035.h.

◆ RFC1035_TYPE_CNAME

#define RFC1035_TYPE_CNAME   5

Definition at line 94 of file rfc1035.h.

◆ RFC1035_TYPE_PTR

#define RFC1035_TYPE_PTR   12

Definition at line 95 of file rfc1035.h.

Typedef Documentation

◆ rfc1035_message

typedef struct _rfc1035_message rfc1035_message

Definition at line 54 of file rfc1035.h.

◆ rfc1035_query

typedef struct _rfc1035_query rfc1035_query

Definition at line 47 of file rfc1035.h.

Function Documentation

◆ rfc1035BuildAQuery()

SQUIDCEXTERN ssize_t rfc1035BuildAQuery ( const char *  hostname,
char *  buf,
size_t  sz,
unsigned short  qid,
rfc1035_query *  query,
ssize_t  edns_sz 
)

Definition at line 658 of file rfc1035.cc.

References _rfc1035_message::arcount, assert, _rfc1035_message::id, int, _rfc1035_query::name, _rfc1035_message::opcode, _rfc1035_query::qclass, _rfc1035_message::qdcount, _rfc1035_message::qr, _rfc1035_query::qtype, _rfc1035_message::rd, RFC1035_CLASS_IN, RFC1035_TYPE_A, rfc1035HeaderPack(), rfc1035QuestionPack(), rfc2671RROptPack(), and xstrncpy().

◆ rfc1035BuildPTRQuery()

SQUIDCEXTERN ssize_t rfc1035BuildPTRQuery ( const struct in_addr  addr,
char *  buf,
size_t  sz,
unsigned short  qid,
rfc1035_query *  query,
ssize_t  edns_sz 
)

Definition at line 697 of file rfc1035.cc.

References _rfc1035_message::arcount, assert, _rfc1035_message::id, int, _rfc1035_query::name, _rfc1035_message::opcode, _rfc1035_query::qclass, _rfc1035_message::qdcount, _rfc1035_message::qr, _rfc1035_query::qtype, _rfc1035_message::rd, RFC1035_CLASS_IN, RFC1035_TYPE_PTR, rfc1035HeaderPack(), rfc1035QuestionPack(), rfc2671RROptPack(), and xstrncpy().

◆ rfc1035ErrorMessage()

SQUIDCEXTERN const char * rfc1035ErrorMessage ( int  n)

Definition at line 444 of file rfc1035.cc.

References rfc1035_unpack_error.

Referenced by idnsCheckQueue(), idnsGrokReply(), and TestRfc1035::testBugPacketHeadersOnly().

◆ rfc1035HeaderPack()

SQUIDCEXTERN int rfc1035HeaderPack ( char *  buf,
size_t  sz,
rfc1035_message *  hdr 
)

Definition at line 56 of file rfc1035.cc.

References _rfc1035_message::aa, _rfc1035_message::ancount, _rfc1035_message::arcount, assert, _rfc1035_message::id, _rfc1035_message::nscount, _rfc1035_message::opcode, _rfc1035_message::qdcount, _rfc1035_message::qr, _rfc1035_message::ra, _rfc1035_message::rcode, _rfc1035_message::rd, and _rfc1035_message::tc.

Referenced by rfc1035BuildAQuery(), rfc1035BuildPTRQuery(), and rfc3596BuildHostQuery().

◆ rfc1035HeaderUnpack()

SQUIDCEXTERN int rfc1035HeaderUnpack ( const char *  buf,
size_t  sz,
unsigned int *  off,
rfc1035_message *  h 
)

Definition at line 180 of file rfc1035.cc.

References _rfc1035_message::aa, _rfc1035_message::ancount, _rfc1035_message::arcount, assert, _rfc1035_message::id, _rfc1035_message::nscount, _rfc1035_message::opcode, _rfc1035_message::qdcount, _rfc1035_message::qr, _rfc1035_message::ra, _rfc1035_message::rcode, _rfc1035_message::rd, and _rfc1035_message::tc.

Referenced by rfc1035MessageUnpack(), TestRfc1035::testBugPacketEndingOnCompressionPtr(), TestRfc1035::testBugPacketHeadersOnly(), and TestRfc1035::testHeaderUnpack().

◆ rfc1035MessageDestroy()

SQUIDCEXTERN void rfc1035MessageDestroy ( rfc1035_message **  message)

Definition at line 530 of file rfc1035.cc.

References rfc1035RRDestroy(), and xfree.

Referenced by idns_query::~idns_query(), idnsGrokReply(), rfc1035MessageUnpack(), TestRfc1035::testBugPacketEndingOnCompressionPtr(), and TestRfc1035::testParseAPacket().

◆ rfc1035MessageUnpack()

SQUIDCEXTERN int rfc1035MessageUnpack ( const char *  buf,
size_t  sz,
rfc1035_message **  answer 
)

Definition at line 584 of file rfc1035.cc.

References _rfc1035_message::ancount, _rfc1035_message::answer, int, _rfc1035_message::qdcount, _rfc1035_message::query, _rfc1035_message::rcode, RFC1035_UNPACK_DEBUG, rfc1035_unpack_error, rfc1035HeaderUnpack(), rfc1035MessageDestroy(), rfc1035QueryUnpack(), rfc1035RRUnpack(), xcalloc(), and xfree.

Referenced by idnsGrokReply(), TestRfc1035::testBugPacketEndingOnCompressionPtr(), TestRfc1035::testBugPacketHeadersOnly(), and TestRfc1035::testParseAPacket().

◆ rfc1035QueryCompare()

SQUIDCEXTERN int rfc1035QueryCompare ( const rfc1035_query *  a,
const rfc1035_query *  b 
)

Definition at line 550 of file rfc1035.cc.

References _rfc1035_query::name, _rfc1035_query::qclass, and _rfc1035_query::qtype.

Referenced by idnsGrokReply().

◆ rfc1035QuestionPack()

SQUIDCEXTERN int rfc1035QuestionPack ( char *  buf,
size_t  sz,
const char *  name,
const unsigned short  type,
const unsigned short  _class 
)

Definition at line 149 of file rfc1035.cc.

References assert, and rfc1035NamePack().

Referenced by rfc1035BuildAQuery(), rfc1035BuildPTRQuery(), and rfc3596BuildHostQuery().

◆ rfc1035RRDestroy()

SQUIDCEXTERN void rfc1035RRDestroy ( rfc1035_rr **  rr,
int  n 
)

Definition at line 483 of file rfc1035.cc.

References xfree.

Referenced by rfc1035MessageDestroy().

◆ rfc1035RRPack()

SQUIDCEXTERN int rfc1035RRPack ( char *  buf,
size_t  sz,
const rfc1035_rr *  RR 
)

Definition at line 325 of file rfc1035.cc.

References rfc1035_rr::_class, assert, rfc1035_rr::name, rfc1035_rr::rdata, rfc1035_rr::rdlength, rfc1035NamePack(), rfc1035_rr::ttl, and rfc1035_rr::type.

Referenced by rfc2671RROptPack().

◆ rfc1035SetQueryID()

SQUIDCEXTERN void rfc1035SetQueryID ( char *  buf,
unsigned short  qid 
)

Definition at line 739 of file rfc1035.cc.

 

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