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.\" Copyright (C) 2000 Internet Software Consortium.
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
.\" DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
.\" INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
.\" FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
.\" NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
.\" WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\" $Id: lwres_hstrerror.3,v 1.5 2000/12/04 18:37:40 gson Exp $
.Dd Jun 30, 2000
.Dt LWRES_ERROR 3
.Os BIND9 9
.ds vT BIND9 Programmer's Manual
.Sh NAME
.Nm lwres_herror ,
.Nm lwres_hstrerror
.Nd lightweight resolver error message generation
.Sh SYNOPSIS
.Fd #include <lwres/netdb.h>
.Fd
.Ft void
.Fo lwres_herror
.Fa "const char *s"
.Fc
.Ft const char *
.Fo lwres_hstrerror
.Fa "int err"
.Fc
.Sh DESCRIPTION
.Fn lwres_herror
prints the string
.Fa s
on
.Dv stderr
followed by the string generated by
.Fn lwres_hstrerror
for the error code stored in the global variable
.Li lwres_h_errno .
.Pp
.Fn lwres_hstrerror
returns an appropriate string for the error code gievn by
.Fa err .
The values of the error codes and messages are as follows:
.Bl -tag -width HOST_NOT_FOUND
.It Li NETDB_SUCCESS
\*qResolver Error 0 (no error)\*q
.It Li HOST_NOT_FOUND
\*qUnknown host\*q
.It Li TRY_AGAIN
\*qHost name lookup failure\*q
.It Li NO_RECOVERY
\*qUnknown server error\*q
.It Li NO_DATA
\*qNo address associated with name\*q
.El
.Sh RETURN VALUES
The string \*qUnknown resolver error\*q is returned by
.Fn lwres_hstrerror
when the value of
.Li lwres_h_errno
is not a valid error code.
.Sh SEE ALSO
.Xr herror 3 ,
.Xr lwres_hstrerror 3 .
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