ares_expand_name - encoded domain name
#include <ares.h> int ares_expand_name(const unsigned char *encoded, const unsigned char *abuf, int alen, char **s, long *enclen)
ARES_EXPAND_NAME(3) Library Functions Manual ARES_EXPAND_NAME(3)
NAME
ares_expand_name - Expand a DNS-encoded domain name
SYNOPSIS
#include <ares.h>
int ares_expand_name(const unsigned char *encoded,
const unsigned char *abuf, int alen, char **s,
long *enclen)
DESCRIPTION
The ares_expand_name function converts a DNS-encoded domain name to a
dot-separated C string. The argument encoded gives the beginning of
the encoded domain name, and the arguments abuf and alen give the con-
taining message buffer (necessary for the processing of indirection
pointers within the encoded domain name). The result is placed in a
NUL-terminated allocated buffer, a pointer to which is stored in the
variable pointed to by s. The length of the encoded name is stored in
the variable pointed to by enclen so that the caller can advance past
the encoded domain name to read further data in the message.
Use ares_free_string(3) to free the allocated hostname.
RETURN VALUES
ares_expand_name can return any of the following values:
ARES_SUCCESS Expansion of the encoded name succeeded.
ARES_EBADNAME The encoded domain name was malformed and could not be
expanded.
ARES_ENOMEM Memory was exhausted.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | library/libcares |
+---------------+------------------+
|Stability | Volatile |
+---------------+------------------+
SEE ALSO
ares_mkquery(3),ares_free_string(3)
AUTHOR
Greg Hudson, MIT Information Systems
Copyright 1998 by the Massachusetts Institute of Technology.
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://c-ares.haxx.se/download/c-
ares-1.17.2.tar.gz.
Further information about this software can be found on the open source
community website at https://c-ares.haxx.se/.
20 Nov 2009 ARES_EXPAND_NAME(3)