wire2host.c File Reference

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Defines

#define LDNS_STATUS_CHECK_RETURN(st)   {if (st != LDNS_STATUS_OK) { return st; }}
#define LDNS_STATUS_CHECK_GOTO(st, label)   {if (st != LDNS_STATUS_OK) { /*printf("STG %s:%d: status code %d\n", __FILE__, __LINE__, st);*/ goto label; }}

Functions

ldns_status ldns_wire2dname (ldns_rdf **dname, const uint8_t *wire, size_t max, size_t *pos)
 converts the data on the uint8_t bytearray (in wire format) to a DNS dname rdata field.
ldns_status ldns_wire2rdf (ldns_rr *rr, const uint8_t *wire, size_t max, size_t *pos)
 converts the data on the uint8_t bytearray (in wire format) to DNS rdata fields, and adds them to the list of rdfs of the given rr.
ldns_status ldns_wire2rr (ldns_rr **rr_p, const uint8_t *wire, size_t max, size_t *pos, ldns_pkt_section section)
 converts the data on the uint8_t bytearray (in wire format) to a DNS resource record.
ldns_status ldns_buffer2pkt_wire (ldns_pkt **packet, ldns_buffer *buffer)
 converts the data on the uint8_t bytearray (in wire format) to a DNS packet.
ldns_status ldns_wire2pkt (ldns_pkt **packet_p, const uint8_t *wire, size_t max)
 converts the data on the uint8_t bytearray (in wire format) to a DNS packet.

Define Documentation

#define LDNS_STATUS_CHECK_RETURN ( st   )     {if (st != LDNS_STATUS_OK) { return st; }}

Definition at line 152 of file wire2host.c.

#define LDNS_STATUS_CHECK_GOTO ( st,
label   )     {if (st != LDNS_STATUS_OK) { /*printf("STG %s:%d: status code %d\n", __FILE__, __LINE__, st);*/ goto label; }}

Definition at line 153 of file wire2host.c.


Function Documentation

ldns_status ldns_wire2dname ( ldns_rdf **  dname,
const uint8_t *  wire,
size_t  max,
size_t *  pos 
)

converts the data on the uint8_t bytearray (in wire format) to a DNS dname rdata field.

This function will initialize and allocate memory space for the dname structure. The length of the wiredata of this rdf is added to the *pos value.

Parameters:
[in] dname pointer to the structure to hold the rdata value
[in] wire pointer to the buffer with the data
[in] max the length of the data buffer (in bytes)
[in] pos the position of the rdf in the buffer (ie. the number of bytes from the start of the buffer)
Returns:
LDNS_STATUS_OK if everything succeeds, error otherwise

Definition at line 56 of file wire2host.c.

References LDNS_MAX_DOMAINLEN, LDNS_MAX_LABELLEN, LDNS_MAX_POINTERS, ldns_rdf_new_frm_data(), LDNS_RDF_TYPE_DNAME, LDNS_STATUS_DOMAINNAME_OVERFLOW, LDNS_STATUS_INVALID_POINTER, LDNS_STATUS_LABEL_OVERFLOW, LDNS_STATUS_MEM_ERR, LDNS_STATUS_OK, and LDNS_STATUS_PACKET_OVERFLOW.

ldns_status ldns_wire2rdf ( ldns_rr rr,
const uint8_t *  wire,
size_t  max,
size_t *  pos 
)

converts the data on the uint8_t bytearray (in wire format) to DNS rdata fields, and adds them to the list of rdfs of the given rr.

This function will initialize and allocate memory space for the dname structures. The length of the wiredata of these rdfs is added to the *pos value.

All rdfs belonging to the RR are read; the rr should have no rdfs yet. An error is returned if the format cannot be parsed.

Parameters:
[in] rr pointer to the ldns_rr structure to hold the rdata value
[in] wire pointer to the buffer with the data
[in] max the length of the data buffer (in bytes)
[in] pos the position of the rdf in the buffer (ie. the number of bytes from the start of the buffer)
Returns:
LDNS_STATUS_OK if everything succeeds, error otherwise

Definition at line 156 of file wire2host.c.

References ldns_rdf_new(), LDNS_RDF_SIZE_16BYTES, LDNS_RDF_SIZE_6BYTES, LDNS_RDF_SIZE_BYTE, LDNS_RDF_SIZE_DOUBLEWORD, LDNS_RDF_SIZE_WORD, LDNS_RDF_TYPE_A, LDNS_RDF_TYPE_AAAA, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_APL, LDNS_RDF_TYPE_ATMA, LDNS_RDF_TYPE_B32_EXT, LDNS_RDF_TYPE_B64, LDNS_RDF_TYPE_CERT_ALG, LDNS_RDF_TYPE_CLASS, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_HEX, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16_DATA, LDNS_RDF_TYPE_INT32, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_IPSECKEY, LDNS_RDF_TYPE_LOC, LDNS_RDF_TYPE_NONE, LDNS_RDF_TYPE_NSAP, LDNS_RDF_TYPE_NSEC, LDNS_RDF_TYPE_NSEC3_NEXT_OWNER, LDNS_RDF_TYPE_NSEC3_SALT, LDNS_RDF_TYPE_PERIOD, LDNS_RDF_TYPE_SERVICE, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_TSIG, LDNS_RDF_TYPE_TSIGTIME, LDNS_RDF_TYPE_TYPE, LDNS_RDF_TYPE_UNKNOWN, LDNS_RDF_TYPE_WKS, ldns_rr_descript(), ldns_rr_descriptor_field_type(), ldns_rr_descriptor_maximum(), ldns_rr_get_type(), ldns_rr_push_rdf(), LDNS_STATUS_CHECK_RETURN, LDNS_STATUS_MEM_ERR, LDNS_STATUS_OK, LDNS_STATUS_PACKET_OVERFLOW, ldns_wire2dname(), and LDNS_XMALLOC.

ldns_status ldns_wire2rr ( ldns_rr **  rr,
const uint8_t *  wire,
size_t  max,
size_t *  pos,
ldns_pkt_section  section 
)

converts the data on the uint8_t bytearray (in wire format) to a DNS resource record.

This function will initialize and allocate memory space for the rr structure. The length of the wiredata of this rr is added to the *pos value.

Parameters:
[in] rr pointer to the structure to hold the rdata value
[in] wire pointer to the buffer with the data
[in] max the length of the data buffer (in bytes)
[in] pos the position of the rr in the buffer (ie. the number of bytes from the start of the buffer)
[in] section the section in the packet the rr is meant for
Returns:
LDNS_STATUS_OK if everything succeeds, error otherwise

Definition at line 285 of file wire2host.c.

References ldns_rr_free(), ldns_rr_new(), ldns_rr_set_class(), ldns_rr_set_owner(), ldns_rr_set_question(), ldns_rr_set_ttl(), ldns_rr_set_type(), LDNS_SECTION_QUESTION, LDNS_STATUS_CHECK_GOTO, LDNS_STATUS_OK, LDNS_STATUS_PACKET_OVERFLOW, ldns_wire2dname(), and ldns_wire2rdf().

ldns_status ldns_buffer2pkt_wire ( ldns_pkt **  packet,
ldns_buffer buffer 
)

converts the data on the uint8_t bytearray (in wire format) to a DNS packet.

This function will initialize and allocate memory space for the packet structure.

Parameters:
[in] packet pointer to the structure to hold the packet
[in] buffer the buffer with the data
Returns:
LDNS_STATUS_OK if everything succeeds, error otherwise

Definition at line 361 of file wire2host.c.

References ldns_buffer_begin(), ldns_buffer_limit(), and ldns_wire2pkt().

ldns_status ldns_wire2pkt ( ldns_pkt **  packet,
const uint8_t *  data,
size_t  len 
)

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