* Changes command line option processing:
- Use getopt_long in libc and support long options
- GNU style option processing (don't try to enforce non-conflicting options)
- GNU style usage message
- Separate encrypt and decrypt settings
- --unprotect -> --allow-raw-read, --protect -> --no-allow-raw-read for clarification
- Change reading key file from stdin using --key-file=-
- Always print detailed status, remove summary "Drive Encryption" line
* Other formatting and style cleanup
* Test output changes
The default CEEM (check external encryption mode) parameter is undocumented, and default of 0 makes behavior vendor-specific. The standard allows for a drive to report an error when trying to read a block that was pre-encrypted before written to the drive, such as is done with a keyless copy of a tape. This sounds like a very rare scenario to need to support. For the widest compatibility with data sources, this should be set to 1 for general-purpose use.
* pull updated template .clang-format with `clang-format-14 --style=llvm --dump-config`, move to base directory so it is shared between `src` and `tests`
* tweak to match existing style a little (e.g. K&R style for function braces)
* run on all sources
* Do media check before getting NBES and allow getting status without media
* Supress error from BLANK CHECK sense when querying next block encryption status
scsi::get_des & others should take a non-const buffer since they modify it
Reorder functions in main.cpp to declare internal functions static
Fix compile error in newer GCC (Compilation error #72) with more explicit cast
Remove some unused constants
Add KAD type enum
Pass key vector by reference instead of copying
Closes: https://github.com/scsitape/stenc/issues/72
* Introduce portable, endian-clean structures using shifts and masks instead of bitfields
* Modernize SCSIExecute with RAII and exceptions
* Convert SP-IN calls to use the new portable SCSI structures and functions
* Convert SP-OUT code to use the new portable SCSI structures and functions
* Delete bitfield-based code and remove runtime endian check
Closes: https://github.com/scsitape/stenc/issues/63
- pass string arguments by reference
- replace macros with constexpr where possible
- move command strings out of global scope
- use standard library strerror instead of custom printer readIOError
