.\" The "BSD-New" License .\" .\" Copyright (c) 2013, NLnet Labs, Verisign, Inc. .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions are met: .\" * Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" * Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" * Neither the names of the copyright holders nor the .\" names of its contributors may be used to endorse or promote products .\" derived from this software without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE .\" DISCLAIMED. IN NO EVENT SHALL Verisign, Inc. BE LIABLE FOR ANY .\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES .\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; .\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND .\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS .\" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" .TH getdns_convert 3 "December 2015" "getdns 1.7.3" getdns .SH NAME .B getdns_convert, .B getdns_convert_dns_name_to_fqdn, .B getdns_convert_fqdn_to_dns_name -- convert dname between presentation- and wire-format .SH LIBRARY DNS Resolver library (libgetdns, \-lgetdns) .SH SYNOPSIS #include getdns_return_t .br .B getdns_convert_dns_name_to_fqdn (const getdns_bindata *dns_name_wire_fmt, .br .RS 3 char **fqdn_as_string) .RE getdns_return_t .br .B getdns_convert_fqdn_to_dns_name (char *fqdn_as_string, .br .RS 3 const getdns_bindata **dns_name_wire_fmt) .RE .SH DESCRIPTION .LP Names in DNS fields are stored in a fashion very different from the normal presentation format normally used in applications. The DNS format is described in the first paragraph in Section 3.1 of RFC 1035; the presentation format here is a null-terminated string with interior dots. These helper functions only work with names in the DNS format that are not compressed. They are useful for converting domain names in the replies_tree to and from the FQDN presentation format. getdns_convert_dns_name_to_fqdn() converts a domain name in DNS format to the presentation format. For example, the hex sequence 03 77 77 77 07 65 78 61 6d 70 6c 65 03 63 6f 6d 00 would be converted to "www.example.com". getdns_convert_fqdn_to_dns_name() does the reverse: it converts a null-terminated string in FQDN format to bytes in DNS format. .HP 3 .I dns_name_wire_fmt The non-compressed DNS wire format name (per RFC 1035) in a bindata structure that will be converted to/from an fqdn. In getdns_convert_fqdn_to_dns_name storage is allocated using the system allocator (malloc) and must be freed by the caller. .HP 3 .I fqdn_as_string a null terminated string to be converted to/from non-compressed DNS wire format name (per RFC 1035). In getdns_convert_dns_name_to_fqdn storage is allocated using the system allocator (malloc) and must be freed by the caller. .HP .SH "RETURN VALUES" Upon successful completion the function returns .B GETDNS_RETURN_GOOD .SH EXAMPLES TBD .SH SEE ALSO .BR libgetdns (3)