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GSS_PROCESS_CONTEXT_TOKEN(3)  Programmer's Manual GSS_PROCESS_CONTEXT_TOKEN(3)

NAME
     gss_process_context_token — Process a token on a security context from a
     peer application

SYNOPSIS
     #include <gssapi/gssapi.h>

     OM_uint32
     gss_process_context_token(OM_uint32 *minor_status,
	 const gss_ctx_id_t context_handle, const gss_buffer_t token_buffer);

DESCRIPTION
     Provides a way to pass an asynchronous token to the security service.
     Most context-level tokens are emitted and processed synchronously by
     gss_init_sec_context() and gss_accept_sec_context(), and the application
     is informed as to whether further tokens are expected by the
     GSS_C_CONTINUE_NEEDED major status bit.  Occasionally, a mechanism may
     need to emit a context-level token at a point when the peer entity is not
     expecting a token.	 For example, the initiator's final call to
     gss_init_sec_context() may emit a token and return a status of
     GSS_S_COMPLETE, but the acceptor's call to gss_accept_sec_context() may
     fail.  The acceptor's mechanism may wish to send a token containing an
     error indication to the initiator, but the initiator is not expecting a
     token at this point, believing that the context is fully established.
     gss_process_context_token() provides a way to pass such a token to the
     mechanism at any time.

PARAMETERS
     minor_status  Mechanism specific status code.

     context_handle
		   Context handle of context on which token is to be pro‐
		   cessed.

     token_buffer  Token to process.

RETURN VALUES
     GSS_S_COMPLETE
		   Successful completion

     GSS_S_DEFECTIVE_TOKEN
		   Indicates that consistency checks performed on the token
		   failed

     GSS_S_NO_CONTEXT
		   The context_handle did not refer to a valid context

SEE ALSO
     gss_init_sec_context(3), gss_accept_sec_context(3)

STANDARDS
     RFC 2743	   Generic Security Service Application Program Interface Ver‐
		   sion 2, Update 1

     RFC 2744	   Generic Security Service API Version 2 : C-bindings

HISTORY
     The gss_process_context_token function first appeared in FreeBSD 7.0.

AUTHORS
     John Wray, Iris Associates

COPYRIGHT
     Copyright (C) The Internet Society (2000).	 All Rights Reserved.

     This document and translations of it may be copied and furnished to oth‐
     ers, and derivative works that comment on or otherwise explain it or
     assist in its implementation may be prepared, copied, published and dis‐
     tributed, in whole or in part, without restriction of any kind, provided
     that the above copyright notice and this paragraph are included on all
     such copies and derivative works.	However, this document itself may not
     be modified in any way, such as by removing the copyright notice or ref‐
     erences to the Internet Society or other Internet organizations, except
     as needed for the purpose of developing Internet standards in which case
     the procedures for copyrights defined in the Internet Standards process
     must be followed, or as required to translate it into languages other
     than English.

     The limited permissions granted above are perpetual and will not be
     revoked by the Internet Society or its successors or assigns.

     This document and the information contained herein is provided on an "AS
     IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK
     FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
     LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT
     INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FIT‐
     NESS FOR A PARTICULAR PURPOSE.

BSD			       January 26, 2010				   BSD
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