OSSP CVS Repository

o adjust source tree to follow OSSP source tree style by heavily combining sources into smaller sets (needs more work when still missing parts are added later)

o automatic re-indentation of sources with GNU indent (still needs manual review and adjustments; will follow)

These two heavy steps were mostly done automatically with the help of two helper scripts written in Perl. So expect more manual adjustments to follow... By rse.

- A change of the callback semantics; callbacks do now return XDS_ERR_(UNDER|OVER)FLOW in case the buffer size doesn't fit. Rather than passing the differing byte size through the return code, it is stored in the location used_buffer_size points to -- a new parameter provided to all callbacks.

   In order to implement this, the framework, all callbacks and most
   of the test suits had to be adapted.

- internal.h now provides the macro xds_check_parameter(), which can be used to verify the contents of function parameters with assert() and if in one line. If assert()s are deactivated, the routine will still return XDS_ERR_INVALID_ARG.

   Because of this change, internal.h now includes the system header
   assert.h. This means that this include coulde be removed from
   almost all modules.

- internal.h now provides the macros xds_init_(en|de)coding_engine(). These can be used to comfortably verify a callback's parameters and to verify the buffer size. All engines have been rewritten to use these. By simons.