Problem: no support to build on OpenVMS
Solution: Add OpenVMS X86_64 platform port
closes: #13623
Co-authored-by: errael <errael@raelity.com>
Co-authored-by: K.Takata <kentkt@csc.jp>
Signed-off-by: Zoltan Arpadffy <zoltan.arpadffy@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Problem: crypt: sodium encryption is not portable
Solution: use little-endian byte order for sodium encrypted files
As mentioned in #12586, sodium encryption only works on little ending
architectures, because reading and writing the sodium encryption
parameters are stored in the encrypted files in an arch-dependent way.
This of course fails for big-endian architectures like s390.
So make sure to use little-endian byte order when reading and writing
sodium encrypted files.
fixes: #12586
closes: 12655
Problem: Crash syncing swapfile in new buffer when using sodium crypt.
(James McCoy)
Solution: Add checks for sodium encryption. (Christian Brabandt,
closes#12591, closes#12585)
Problem: Get E304 when using 'cryptmethod' "xchacha20v2". (Steve Mynott)
Solution: Add 4th crypt method to block zero ID check. Avoid syncing a swap
file before reading the file. (closes#12433)
Problem: Decrypting with libsodium may fail if the library changes.
Solution: Add parameters used to the encrypted file header. (Christian
Brabandt, closes#12279)
Problem: MS-Windows: cannot build with some sodium libraries.
Solution: Make the DLL name configuragle. Add build instructions.
(Ken Takata, closes#9905)
Problem: Dynamic loading of libsodium not handled properly.
Solution: Fix has() and :version. Show an error message when loading fails.
Fix memory leaks. (Ken Takata, closes#9754)
Problem: When using xchaha20 crypt undo file is not removed.
Solution: Reset 'undofile' and delete the file. (Christian Brabandt,
closes#8630, closes#8467)
Problem: Build problems with MSVC, other crypt issues with libsodium.
Solution: Adjust MSVC makefile. Disable swap file only when 'key' is set.
Adjust error message used when key is wrong. Fix Coverity issues.
(Christian Brabandt, closes#8420, closes#8411)
Problem: Alloc() returning "char_u *" causes a lot of type casts.
Solution: Have it return "void *". (Mike Williams) Define ALLOC_ONE() to
check the simple allocations.
Problem: Giving error messages is not flexible.
Solution: Add semsg(). Change argument from "char_u *" to "char *", also
for msg() and get rid of most MSG macros. (Ozaki Kiichi, closes
#3302) Also make emsg() accept a "char *" argument. Get rid of
an enormous number of type casts.
Problem: Encryption implementation is messy. Blowfish encryption has a
weakness.
Solution: Refactor the encryption, store the state in an allocated struct
instead of using a save/restore mechanism. Introduce the
"blowfish2" method, which does not have the weakness and encrypts
the whole undo file. (largely by David Leadbeater)
