read by read_packet_init()

with the wrong encryption key ("bad packet length" symptom) while
key exchange was happening.

--HG--
extra : convert_revision : f7d27ec094c4aba2a4289c523c722fcb3c3f58ca

- Better handling of the case where compressing makes the data
larger (possibly only happens when memLevel is adjusted, but better
to be safe)

--HG--
extra : convert_revision : b31879a384d3bf8cbcbe2ed731d7d79d49799b1d

--HG--
extra : convert_revision : 997e53cec7a9efb7413ac6e17b6be60a5597bd2e

(from keepalives)

--HG--
extra : convert_revision : a46ca9204de0df58d8701df0d79b6b8ec601b9ce

--HG--
extra : convert_revision : 8a18c4a60aeaec085923d13d98fa0f93c506ceba

--HG--
extra : convert_revision : 98ac17a573ab350cbd6e358b3943237d2ad5c9cf

--HG--
extra : convert_revision : 58d53a027555e98d6d274b4659d38211eea7ad11

- Share make_mac function for both packet creation and validation
- Split recv/trans parts of key_context into their own structures

--HG--
extra : convert_revision : 043bc598c76ed43625987e6937e32238f7ed6240

--HG--
extra : convert_revision : 981e3e4b44e6fdc8537775518e898a33e76a38db

--HG--
extra : convert_revision : e1c100e6366c5d607af08f4abdbb0f4281df4fa9

--HG--
extra : convert_revision : a101cbd046507cf723e6362a49196dbd4b924042

--HG--
extra : convert_revision : c8e1b84cfe874887ad7df0dd95a00de46dbc0136

code works

--HG--
extra : convert_revision : ff66e05ae040561110af70114bf83f11ed528f05

--HG--
extra : convert_revision : 5225162bdf32d70b58b6d3ae375a290326c59f3a

Are still advertising 'zlib' for the server, need to allow
delayed-only as an option

--HG--
extra : convert_revision : 319df675cc3c9b35a10b7d8357c94f33fdab1a46

  for -J proxy_cmd option (and some prelim options for that)

--HG--
extra : convert_revision : 47cdea9a7d66c553c6f5eec43b899821939d4e4c

--HG--
extra : convert_revision : 53b349938dfae2256e23799fae66edd5fc3e97ee

- Try to reduce the frequency of select() timeouts
- Add a max receive window size of 1MB

--HG--
extra : convert_revision : 9aa22036cb511cddb35fbc0e09ad05acb39b64d1

them until afterwards. This could sometimes terminate connections
after 8 hours if (for example) a new TCP forwarded connection
was sent at the KEX timeout.

--HG--
extra : convert_revision : 48426bd66b8f5ba50045f7ba190d1672745132e2

options.h. Increasing RECV_MAX_WINDOW gives big network performance
increases - even with the present buffers (which haven't changed) it
performs a lot better.
Next step is to make the window size a cmdline option.

--HG--
extra : convert_revision : 24c7cb47fb56cf5b82e3bc0859b45ea83038eab0

On systems where it matters encrypted swap should be enabled anyway.

--HG--
extra : convert_revision : 6cb7793493d92968e09b5dea21d71ded5811d21f

--HG--
extra : convert_revision : 3dc365619f0840ab5781660b1257a9f22c05d3fe

--HG--
extra : convert_revision : 39c4f7320b3a10ef7ef5a41406fe014cc9040ee9

- Added support for aes256, twofish256 and sha1-96
- Fixed some debugging statements

--HG--
extra : convert_revision : 598835dadaddb1e95d4ac99f8a1be4ba51639000

 (still has problems)

--HG--
extra : convert_revision : 4dfd70544ed9a766876ddda9f6ac3f26054eb3db

--HG--
extra : convert_revision : d928bc851e32be7bd429bf7504b148c0e4bf7e2f

--HG--
extra : convert_revision : 4c3428781bc8faf0fd7cadd7099fbd7f4ea386e7

--HG--
extra : convert_revision : 48946be1cef774d1c33b0f78689962b18720c627

- buf_burn the unencrypted read/write payload buffers after use to avoid
  sensitive contents sitting in memory for too long

--HG--
extra : convert_revision : 19227d63bda554e819ae7df919bfd18911d5b4a0

--HG--
extra : convert_revision : cc8a8c49dc70e632c352853a39801089b08149be