Manual Reference Pages - ARES_EXPAND_NAME (3)
ares_expand_name - Expand a DNS-encoded domain name
int ares_expand_name(const unsigned char *encoded,
const unsigned char *abuf, int alen, char **s,
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
alen give the containing 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.
ares_expand_name can return any of the following values:
Expansion of the encoded name succeeded.
The encoded domain name was malformed and could not be expanded.
Memory was exhausted.
Greg Hudson, MIT Information Systems
Copyright 1998 by the Massachusetts Institute of Technology.
|--> ||ARES_EXPAND_NAME (3) ||20 Nov 2009 |
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