functionality there (wrapping of base64-encoded data) to sshbuf functions;
feedback and ok markus@

OpenBSD-Commit-ID: 4dba6735d88c57232f6fccec8a08bdcfea44ac4c

     [PROTOCOL PROTOCOL.agent PROTOCOL.certkeys auth2-jpake.c authfd.c]
     [authfile.c buffer.h dns.c kex.c kex.h key.c key.h monitor.c]
     [monitor_wrap.c myproposal.h packet.c packet.h pathnames.h readconf.c]
     [ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c]
     [ssh-keyscan.1 ssh-keyscan.c ssh-keysign.8 ssh.1 ssh.c ssh2.h]
     [ssh_config.5 sshconnect.c sshconnect2.c sshd.8 sshd.c sshd_config.5]
     [uuencode.c uuencode.h bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c]
     Implement Elliptic Curve Cryptography modes for key exchange (ECDH) and
     host/user keys (ECDSA) as specified by RFC5656. ECDH and ECDSA offer
     better performance than plain DH and DSA at the same equivalent symmetric
     key length, as well as much shorter keys.

     Only the mandatory sections of RFC5656 are implemented, specifically the
     three REQUIRED curves nistp256, nistp384 and nistp521 and only ECDH and
     ECDSA. Point compression (optional in RFC5656 is NOT implemented).

     Certificate host and user keys using the new ECDSA key types are supported.

     Note that this code has not been tested for interoperability and may be
     subject to change.

     feedback and ok markus@

     [OVERVIEW atomicio.c atomicio.h auth-bsdauth.c auth-chall.c auth-krb5.c]
     [auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c]
     [auth-rsa.c auth-skey.c auth.c auth.h auth1.c auth2-chall.c auth2-gss.c]
     [auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c ]
     [auth2-pubkey.c auth2.c authfd.c authfd.h authfile.c bufaux.c bufbn.c]
     [buffer.c buffer.h canohost.c channels.c channels.h cipher-3des1.c]
     [cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c]
     [compress.c deattack.c dh.c dispatch.c dns.c dns.h fatal.c groupaccess.c]
     [groupaccess.h gss-genr.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c]
     [kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c]
     [key.h log.c log.h mac.c match.c md-sha256.c misc.c misc.h moduli.c]
     [monitor.c monitor_fdpass.c monitor_mm.c monitor_mm.h monitor_wrap.c]
     [monitor_wrap.h msg.c nchan.c packet.c progressmeter.c readconf.c]
     [readconf.h readpass.c rsa.c scard.c scard.h scp.c servconf.c servconf.h]
     [serverloop.c session.c session.h sftp-client.c sftp-common.c]
     [sftp-common.h sftp-glob.c sftp-server.c sftp.c ssh-add.c ssh-agent.c]
     [ssh-dss.c ssh-gss.h ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rsa.c]
     [ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c]
     [sshd.c sshlogin.c sshlogin.h sshpty.c sshpty.h sshtty.c ttymodes.c]
     [uidswap.c uidswap.h uuencode.c uuencode.h xmalloc.c xmalloc.h]
     [loginrec.c loginrec.h openbsd-compat/port-aix.c openbsd-compat/port-tun.h]
     almost entirely get rid of the culture of ".h files that include .h files"
     ok djm, sort of ok stevesk
     makes the pain stop in one easy step
     NB. portable commit contains everything *except* removing includes.h, as
     that will take a fair bit more work as we move headers that are required
     for portability workarounds to defines.h. (also, this step wasn't "easy")

     [auth-passwd.c auth-rhosts.c auth-rsa.c auth.c auth.h auth1.c]
     [auth2-chall.c auth2-pubkey.c authfile.c buffer.c canohost.c]
     [channels.c clientloop.c dh.c dns.c dns.h hostfile.c kex.c kexdhc.c]
     [kexgexc.c kexgexs.c key.c key.h log.c misc.c misc.h moduli.c]
     [monitor_wrap.c packet.c progressmeter.c readconf.c readpass.c scp.c]
     [servconf.c session.c sftp-client.c sftp-common.c sftp-server.c sftp.c]
     [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keyscan.c ssh.c sshconnect.c]
     [sshconnect1.c sshconnect2.c sshd.c sshlogin.c sshtty.c uuencode.c]
     [uuencode.h xmalloc.c]
     move #include <stdio.h> out of includes.h

     [atomicio.h auth-options.h auth.h auth2-gss.c authfd.h authfile.h]
     [bufaux.h buffer.h canohost.h channels.h cipher.h clientloop.h]
     [compat.h compress.h crc32.c crc32.h deattack.h dh.h dispatch.h]
     [dns.c dns.h getput.h groupaccess.h gss-genr.c gss-serv-krb5.c]
     [gss-serv.c hostfile.h includes.h kex.h key.h log.h mac.h match.h]
     [misc.h monitor.h monitor_fdpass.h monitor_mm.h monitor_wrap.h msg.h]
     [myproposal.h packet.h pathnames.h progressmeter.h readconf.h rsa.h]
     [scard.h servconf.h serverloop.h session.h sftp-common.h sftp.h]
     [ssh-gss.h ssh.h ssh1.h ssh2.h sshconnect.h sshlogin.h sshpty.h]
     [ttymodes.h uidswap.h uuencode.h xmalloc.h]
     standardise spacing in $OpenBSD$ tags; requested by deraadt@

     [bufaux.c bufaux.h cipher.c cipher.h hostfile.c hostfile.h key.c]
     [key.h sftp-common.c sftp-common.h sftp-server.c sshconnect.c sshd.c]
     [ssh-dss.c ssh-rsa.c uuencode.c uuencode.h]
     constify. ok markus@ & djm@

     [ssh-keygen.c sshconnect2.c uuencode.c uuencode.h]
     more u_* fixes

     [authfd.h authfile.h auth.h auth-options.h bufaux.h buffer.h
      canohost.h channels.h cipher.h clientloop.h compat.h compress.h
      crc32.h deattack.h dh.h dispatch.h groupaccess.c groupaccess.h
      hostfile.h kex.h key.h log.c log.h mac.h misc.c misc.h mpaux.h
      packet.h radix.h readconf.h readpass.h rsa.h servconf.h serverloop.h
      session.h sftp-common.c sftp-common.h sftp-glob.h sftp-int.h
      sshconnect.h ssh-dss.h sshlogin.h sshpty.h ssh-rsa.h sshtty.h
      tildexpand.h uidswap.h uuencode.h xmalloc.h]
     remove comments from .h, since they are cut&paste from the .c files
     and out of sync

     [servconf.h serverloop.h session.h sftp-client.h sftp-common.h
      sftp-glob.h sftp-int.h sshconnect.h ssh-dss.h sshlogin.h sshpty.h
      ssh-rsa.h tildexpand.h uidswap.h uuencode.h xmalloc.h]
     prototype pedant.  not very creative...
     - () -> (void)
     - no variable names

     [channels.c channels.h cipher.c clientloop.c compat.c compat.h
      hostfile.c kex.c kex.h key.c key.h nchan.c packet.c serverloop.c
      session.c session.h sftp-server.c ssh-add.c ssh-agent.c uuencode.h]
     update copyright for 2001