Section: C Library Functions (3)
Updated: 20 Nov 2009
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ares_expand_string - Expand a length encoded string
int ares_expand_string(const unsigned char *encoded,
const unsigned char *abuf, int alen, unsigned char **s,
function converts a length encoded string to a NUL-terminated C
string. The argument
gives the beginning of the encoded string, and the arguments
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
The length of the encoded string is stored in the variable pointed to by
so that the caller can advance past the encoded string to read
further data in the message.
can return any of the following values:
Expansion of the encoded string succeeded.
The encoded string was malformed and could not be expanded.
Memory was exhausted.
- RETURN VALUES
- SEE ALSO