.\" $Id$ .\" .\" Copyright 1998 by the Massachusetts Institute of Technology. .\" .\" Permission to use, copy, modify, and distribute this .\" software and its documentation for any purpose and without .\" fee is hereby granted, provided that the above copyright .\" notice appear in all copies and that both that copyright .\" notice and this permission notice appear in supporting .\" documentation, and that the name of M.I.T. not be used in .\" advertising or publicity pertaining to distribution of the .\" software without specific, written prior permission. .\" M.I.T. makes no representations about the suitability of .\" this software for any purpose. It is provided "as is" .\" without express or implied warranty. .\" .TH ARES_EXPAND_NAME 3 "23 July 1998" .SH NAME ares_expand_name \- Expand a DNS-encoded domain name .SH SYNOPSIS .nf .B #include <ares.h> .PP .B int ares_expand_name(const unsigned char *\fIencoded\fP, .B const unsigned char *\fIabuf\fP, int \fIalen\fP, char **\fIs\fP, .B int *\fIenclen\fP) .fi .SH DESCRIPTION The .B ares_expand_name function converts a DNS-encoded domain name to a dot-separated C string. The argument .I encoded gives the beginning of the encoded domain name, and the arguments .I abuf and .I 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 .IR s . The length of the encoded name is stored in the variable pointed to by .I enclen so that the caller can advance past the encoded domain name to read further data in the message. .SH RETURN VALUES .B ares_expand_name can return any of the following values: .TP 15 .B ARES_SUCCESS Expansion of the encoded name succeeded. .TP 15 .B ARES_EBADNAME The encoded domain name was malformed and could not be expanded. .TP 15 .B ARES_ENOMEM Memory was exhausted. .SH SEE ALSO .BR ares_mkquery (3) .SH AUTHOR Greg Hudson, MIT Information Systems .br Copyright 1998 by the Massachusetts Institute of Technology.