gss_display_status(3)

NAME
gss_display_status - API function

SYNOPSIS
#include <gss.h>

OM_uint32 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);

ARGUMENTS

OM_uint32 * minor_status
    (integer, modify) Mechanism specific status code.

OM_uint32 status_value
    (Integer, read) Status value to be converted.

int status_type
    (Integer, read) GSS_C_GSS_CODE - status_value is a
      GSS status code. GSS_C_MECH_CODE - status_value is a mechanism
      status code.

const gss_OID mech_type
    (Object ID, read, optional) Underlying mechanism (used
      to interpret a minor status value). Supply GSS_C_NO_OID to obtain
      the system default.

OM_uint32 * message_context
    (Integer, read/modify) 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.

gss_buffer_t status_string
    (buffer, character string, modify) 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().

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 0 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,
         (int)status_string.length,

         (char *)status_string.value);

  gss_release_buffer(&min_status, &status_string);

} while (message_context != 0); ---------------------------------------------------

RETURN VALUE

`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.

REPORTING BUGS
Report bugs to <bug-gss@gnu.org>. GNU Generic Security Service home page: http://www.gnu.org/software/gss/ General help using GNU software: http://www.gnu.org/gethelp/

COPYRIGHT
Copyright © 2003-2013 Simon Josefsson.
Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO
The full documentation for gss is maintained as a Texinfo manual. If the info and gss programs are properly installed at your site, the command

    info gss

should give you access to the complete manual.