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krb5_rd_error and friends

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@14073 ec53bebd-3082-4978-b11e-865c3cabbd6b
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Love Hörnquist Åstrand
2004-07-26 14:29:03 +00:00
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.\" Copyright (c) 2004 Kungliga Tekniska H<>gskolan
.\" (Royal Institute of Technology, Stockholm, Sweden).
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\"
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\"
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" 3. Neither the name of the Institute nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $Id$
.\"
.Dd July 26, 2004
.Dt KRB5_RD_ERROR 3
.Os HEIMDAL
.Sh NAME
.Nm krb5_rd_error ,
.Nm krb5_free_error ,
.Nm krb5_free_error_contents ,
.Nm krb5_error_from_rd_error
.Nd parse, free and read error from KRB-ERROR message
.Sh LIBRARY
Kerberos 5 Library (libkrb5, -lkrb5)
.Sh SYNOPSIS
.In krb5.h
.Ft krb5_error_code
.Fo krb5_rd_error
.Fa "krb5_context context"
.Fa "krb5_data *msg"
.Fa "KRB_ERROR *result"
.Fc
.Ft void
.Fo krb5_free_error
.Fa "krb5_context context"
.Fa "krb5_error *error"
.Fc
.Ft void
.Fo krb5_free_error_contents
.Fa "krb5_context context"
.Fa "krb5_error *error"
.Fc
.Ft krb5_error_code
.Fo krb5_error_from_rd_error
.Fa "krb5_context context"
.Fa "const krb5_error *error"
.Fa "const krb5_creds *creds"
.Fc
.Sh DESCRIPTION
Usually applications never needs to parse and understand Kerberos
error messages since higher level functions will parse and push up the
error in the krb5_context.
These functions are described for completeness.
.Pp
.Fn krb5_rd_error
parses and returns the kerboeros error message, the structure should be freed with
.Fn krb5_free_error_contents
when the caller is done with the structure.
.Pp
.Fn krb5_free_error
frees the content and the memory region holding the structure iself.
.Pp
.Fn krb5_free_error_contents
free the content of the KRB-ERROR message.
.Pp
.Fn krb5_error_from_rd_error
will parse the error message and set the error buffer in krb5_context
to the error string passed back or the matching error code in the
KRB-ERROR message.
Caller should pick up the message with
.Fn krb5_get_error_string 3
(don't forget to free the returned string with
.Fn krb5_free_error_string ) .
.Sh SEE ALSO
.Xr krb5 3 ,
.Xr krb5_set_error_string 3 ,
.Xr krb5_get_error_string 3 ,
.Xr krb5.conf 5