Allows an application to determine the maximum message size that,
if presented to
with the same
will result in an output token containing no more than
This call is intended for use by applications that
communicate over protocols that impose a maximum message size.
It enables the application to fragment messages prior to applying protection.
GSS-API implementations are recommended but not required to detect
invalid QOP values when
This routine guarantees only a maximum message size,
not the availability of specific QOP values for message protection.
Successful completion of this call does not guarantee that
will be able to protect a message of length max_input_size bytes,
since this ability may depend on the availability of system resources
at the time that
However, if the implementation itself imposes an upper limit on
the length of messages that may be processed by gss_wrap,
the implementation should not return a value via
that is greater than this length.
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