int ares_parse_ptr_reply(const unsigned char *abuf, int alen, const void *addr, int addrlen, int family, struct hostent **host);
The ares_parse_ptr_reply function parses the response to a query of type PTR into a struct hostent . The parameters abuf and alen give the contents of the response. The parameters addr , addrlen , and family specify which address was queried for; they are not used to verify the response, merely used to fill in the address of the struct hostent . The resulting struct hostent is stored in allocated memory and a pointer to it stored into the variable pointed to by host . It is the caller's responsibility to free the resulting host structure using ares_free_hostent (3) when it is no longer needed.
ares_parse_ptr_reply can return any of the following values:
ARES_SUCCESS The response was successfully parsed.
ARES_EBADRESP The response was malformatted.
ARES_ENODATA The response did not contain an answer to the query.
Greg Hudson, MIT Information Systems
Copyright 1998 by the Massachusetts Institute of Technology.
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