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gss_display_status (3)

gss_display_status (3) ( Solaris man: Библиотечные вызовы )

>> gss_display_status (3) ( FreeBSD man: Библиотечные вызовы )

BSD mandoc

NAME

gss_display_status

 - Convert a GSS-API status code to text

SYNOPSIS

#include <gssapi/gssapi.h>
OM_uint32 Fo gss_display_status Fa OM_uint32 *minor_status Fa OM_uint32 status_value Fa int status_type Fa const gss_OID mech_type Fa OM_uint32 *message_context Fa 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 Fa message_context parameter is used by gss_display_status ();
to store state information about which error messages have already been extracted from a given Fa status_value ; Fa 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 Fa message_context parameter contains all state information required by gss_display_status ();
in order to extract further messages from the Fa 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: Fa status_value is a GSS status code
GSS_C_MECH_CODE: Fa 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 Fa status_value , Fa status_type , Fa mech_type , and Fa message_context parameters.

status_string

Textual interpretation of the Fa 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

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 manual page example first appeared in Fx 7.0 .

AUTHORS

John Wray, Iris Associates

COPYRIGHT

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