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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/crypto/krb5/src/lib/gssapi/mechglue/g_process_context.c
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/* #pragma ident	"@(#)g_process_context.c	1.12	98/01/22 SMI" */

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/*

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 * Copyright 1996 by Sun Microsystems, Inc.

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 *

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 * Permission to use, copy, modify, distribute, and sell this software

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 * and its documentation for any purpose is hereby granted without fee,

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 * provided that the above copyright notice appears in all copies and

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 * that both that copyright notice and this permission notice appear in

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 * supporting documentation, and that the name of Sun Microsystems not be used

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 * in advertising or publicity pertaining to distribution of the software

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 * without specific, written prior permission. Sun Microsystems makes no

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 * representations about the suitability of this software for any

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 * purpose.  It is provided "as is" without express or implied warranty.

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 *

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 * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

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 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

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 * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR

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 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF

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 * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR

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 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

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 * PERFORMANCE OF THIS SOFTWARE.

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 */

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/*

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 *  glue routine gss_process_context

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 */

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#include "mglueP.h"

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OM_uint32 KRB5_CALLCONV

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gss_process_context_token(OM_uint32 *minor_status, gss_ctx_id_t context_handle,

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			  gss_buffer_t token_buffer)

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{

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    OM_uint32		status;

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    gss_union_ctx_id_t	ctx;

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    gss_mechanism	mech;

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    if (minor_status == NULL)

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	return (GSS_S_CALL_INACCESSIBLE_WRITE);

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    *minor_status = 0;

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    if (context_handle == GSS_C_NO_CONTEXT)

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	return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);

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    if (token_buffer == GSS_C_NO_BUFFER)

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	return (GSS_S_CALL_INACCESSIBLE_READ);

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    if (GSS_EMPTY_BUFFER(token_buffer))

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	return (GSS_S_CALL_INACCESSIBLE_READ);

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    /*

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     * select the approprate underlying mechanism routine and

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     * call it.

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     */

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    ctx = (gss_union_ctx_id_t) context_handle;

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    if (ctx->internal_ctx_id == GSS_C_NO_CONTEXT)

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	return (GSS_S_NO_CONTEXT);

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    mech = gssint_get_mechanism (ctx->mech_type);

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    if (mech) {

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	if (mech->gss_process_context_token) {

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	    status = mech->gss_process_context_token(

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						    minor_status,

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						    ctx->internal_ctx_id,

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						    token_buffer);

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	    if (status != GSS_S_COMPLETE)

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		map_error(minor_status, mech);

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	} else

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	    status = GSS_S_UNAVAILABLE;

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	return(status);

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    }

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    return (GSS_S_BAD_MECH);

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}

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