1ldns(3)                    Library Functions Manual                    ldns(3)
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NAME

6       ldns_rr_descriptor,    ldns_rr_descript,    ldns_rr_descriptor_minimum,
7       ldns_rr_descriptor_maximum, ldns_rr_descriptor_field_type
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9

SYNOPSIS

11       #include <stdint.h>
12       #include <stdbool.h>
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14       #include <ldns/ldns.h>
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16       const ldns_rr_descriptor* ldns_rr_descript(uint16_t type);
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18       size_t  ldns_rr_descriptor_minimum(const  ldns_rr_descriptor  *descrip‐
19       tor);
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21       size_t  ldns_rr_descriptor_maximum(const  ldns_rr_descriptor  *descrip‐
22       tor);
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24       ldns_rdf_type  ldns_rr_descriptor_field_type(const   ldns_rr_descriptor
25       *descriptor, size_t field);
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DESCRIPTION

28       ldns_rr_descriptor
29              Contains all information about resource record types.
30
31              This structure contains, for all rr types, the rdata fields that
32              are defined.
33              struct ldns_struct_rr_descriptor
34              {
35                   Type of the RR that is described here:
36                   ldns_rr_type    _type;
37                   Textual name of the RR type.:
38                   const char *_name;
39                   Minimum number of rdata fields in the RRs of this type.:
40                   uint8_t     _minimum;
41                   Maximum number of rdata fields in the RRs of this type.:
42                   uint8_t     _maximum;
43                   Wireformat specification for the  rr,  i.e.  the  types  of
44              rdata fields in their respective order.:
45                   const ldns_rdf_type *_wireformat;
46                   Special rdf types:
47                   ldns_rdf_type _variable;
48                   Specifies  whether  compression  can  be used for dnames in
49              this RR type.:
50                   ldns_rr_compress _compress;
51                   The number of DNAMEs in the _wireformat string,  for  pars‐
52              ing.:
53                   uint8_t _dname_count;
54              };
55              typedef struct ldns_struct_rr_descriptor ldns_rr_descriptor;
56
57       ldns_rr_descript() returns the resource record descriptor for the given
58              rr type.
59
60              type: the type value of the rr type
61              Returns the ldns_rr_descriptor for this type
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63       ldns_rr_descriptor_minimum() returns the minimum number of rdata fields
64              of the rr type this descriptor describes.
65
66              descriptor: for an rr type
67              Returns the minimum number of rdata fields
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69       ldns_rr_descriptor_maximum() returns the maximum number of rdata fields
70              of the rr type this descriptor describes.
71
72              descriptor: for an rr type
73              Returns the maximum number of rdata fields
74
75       ldns_rr_descriptor_field_type() returns the  rdf  type  for  the  given
76              rdata field number of the rr type for the given descriptor.
77
78              descriptor: for an rr type
79              field: the field number
80              Returns the rdf type for the field
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AUTHOR

83       The  ldns  team  at  NLnet Labs. Which consists out of Jelte Jansen and
84       Miek Gieben.
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86

REPORTING BUGS

88       Please report bugs to ldns-team@nlnetlabs.nl  or  in  our  bugzilla  at
89       http://www.nlnetlabs.nl/bugs/index.html
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91

93       Copyright (c) 2004 - 2006 NLnet Labs.
94
95       Licensed under the BSD License. There is NO warranty; not even for MER‐
96       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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98

SEE ALSO

100       ldns_rr, ldns_rdf.  And perldoc Net::DNS,  RFC1034,  RFC1035,  RFC4033,
101       RFC4034  and RFC4035.
102

REMARKS

104       This manpage was automaticly generated from the ldns source code by use
105       of Doxygen and some perl.
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109                                  30 May 2006                          ldns(3)
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