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Man Pages


Manual Reference Pages  -  GSS_DISPLAY_STATUS (3)

NAME

gss_display_status - Convert a GSS-API status code to text

CONTENTS

Synopsis
Description
Parameters
Return Values
See Also
Standards
History
Authors
Copyright

SYNOPSIS


.In gssapi/gssapi.h OM_uint32
.Fo gss_display_status OM_uint32 *minor_status OM_uint32 status_value int status_type const gss_OID mech_type OM_uint32 *message_context gss_buffer_t status_string
.Fc

DESCRIPTION

Allows an application to obtain a textual representation of a GSS-API status code, for display to the user or for logging purposes. Since some status values may indicate multiple conditions, applications may need to call gss_display_status multiple times, each call generating a single text string. The message_context parameter is used by gss_display_status to store state information about which error messages have already been extracted from a given status_value; message_context must be initialized to zero by the application prior to the first call, and gss_display_status will return a non-zero value in this parameter if there are further messages to extract.

The message_context parameter contains all state information required by gss_display_status in order to extract further messages from the status_value; even when a non-zero value is returned in this parameter, the application is not required to call gss_display_status again unless subsequent messages are desired. The following code extracts all messages from a given status code and prints them to stderr:

OM_uint32 message_context;
OM_uint32 status_code;
OM_uint32 maj_status;
OM_uint32 min_status;
gss_buffer_desc status_string;

...

message_context = 0;

do {

maj_status = gss_display_status (                  &min_status,                  status_code,                  GSS_C_GSS_CODE,                  GSS_C_NO_OID,                  &message_context,                  &status_string)

fprintf(stderr,          "%.*s\n",          (int)status_string.length,          (char *)status_string.value);

gss_release_buffer(&min_status, &status_string);

} while (message_context != 0);

PARAMETERS

minor_status
  Mechanism specific status code.
status_value
  Status value to be converted
status_type
GSS_C_GSS_CODE status_value is a GSS status code
GSS_C_MECH_CODE
  status_value is a mechanism status code
mech_type Underlying mechanism (used to interpret a minor status value). Supply GSS_C_NO_OID to obtain the system default.
message_context
  Should be initialized to zero by the application prior to the first call. On return from gss_display_status, a non-zero status_value parameter indicates that additional messages may be extracted from the status code via subsequent calls to gss_display_status, passing the same status_value, status_type, mech_type, and message_context parameters.
status_string Textual interpretation of the status_value. Storage associated with this parameter must be freed by the application after use with a call to gss_release_buffer.

RETURN VALUES

GSS_S_COMPLETE Successful completion
GSS_S_BAD_MECH Indicates that translation in accordance with an unsupported mechanism type was requested
GSS_S_BAD_STATUS
  The status value was not recognized, or the status type was neither GSS_C_GSS_CODE nor GSS_C_MECH_CODE.

SEE ALSO

gss_release_buffer(3)

STANDARDS

RFC 2743
  Generic Security Service Application Program Interface Version 2, Update 1
RFC 2744
  Generic Security Service API Version 2 : C-bindings

HISTORY

The gss_display_status function first appeared in
.Fx 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 others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, 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 references 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 FITNESS FOR A PARTICULAR PURPOSE.

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