ChangeLog

20120309
 - (djm) [openbsd-compat/port-linux.c] bz#1960: fix crash on SELinux 
   systems where sshd is run in te wrong context. Patch from Sven
   Vermeulen; ok dtucker@

20120224
 - (dtucker) [audit-bsm.c configure.ac] bug #1968: enable workarounds for BSM
   audit breakage in Solaris 11.  Patch from Magnus Johansson.

20120215
 - (tim) [openbsd-compat/bsd-misc.h sshd.c] Fix conflicting return type for
   unsetenv due to rev 1.14 change to setenv.c. Cast unsetenv to void in sshd.c
   ok dtucker@
 - (tim) [defines.h] move chunk introduced in 1.125 before MAXPATHLEN so
   it actually works.
 - (tim) [regress/keytype.sh] stderr redirection needs to be inside back quote
   to work. Spotted by Angel Gonzalez

20120214
 - (djm) [openbsd-compat/bsd-cygwin_util.c] Add PROGRAMFILES to list of
   preserved Cygwin environment variables; from Corinna Vinschen

20120211
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2012/01/05 00:16:56
     [monitor.c]
     memleak on error path
   - djm@cvs.openbsd.org 2012/01/07 21:11:36
     [mux.c]
     fix double-free in new session handler
   - miod@cvs.openbsd.org 2012/01/08 13:17:11
     [ssh-ecdsa.c]
     Fix memory leak in ssh_ecdsa_verify(); from Loganaden Velvindron,
     ok markus@
   - miod@cvs.openbsd.org 2012/01/16 20:34:09
     [ssh-pkcs11-client.c]
     Fix a memory leak in pkcs11_rsa_private_encrypt(), reported by Jan Klemkow.
     While there, be sure to buffer_clear() between send_msg() and recv_msg().
     ok markus@
   - dtucker@cvs.openbsd.org 2012/01/18 21:46:43
     [clientloop.c]
     Ensure that $DISPLAY contains only valid characters before using it to
     extract xauth data so that it can't be used to play local shell
     metacharacter games.  Report from r00t_ati at ihteam.net, ok markus.
   - markus@cvs.openbsd.org 2012/01/25 19:26:43
     [packet.c]
     do not permit SSH2_MSG_SERVICE_REQUEST/ACCEPT during rekeying;
     ok dtucker@, djm@
   - markus@cvs.openbsd.org 2012/01/25 19:36:31
     [authfile.c]
     memleak in key_load_file(); from Jan Klemkow
   - markus@cvs.openbsd.org 2012/01/25 19:40:09
     [packet.c packet.h]
     packet_read_poll() is not used anymore.
   - markus@cvs.openbsd.org 2012/02/09 20:00:18
     [version.h]
     move from 6.0-beta to 6.0

20120206
 - (djm) [ssh-keygen.c] Don't fail in do_gen_all_hostkeys on platforms
   that don't support ECC. Patch from Phil Oleson

20111219
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/12/02 00:41:56
     [mux.c]
     fix bz#1948: ssh -f doesn't fork for multiplexed connection.
     ok dtucker@
   - djm@cvs.openbsd.org 2011/12/02 00:43:57
     [mac.c]
     fix bz#1934: newer OpenSSL versions will require HMAC_CTX_Init before
     HMAC_init (this change in policy seems insane to me)
     ok dtucker@
   - djm@cvs.openbsd.org 2011/12/04 23:16:12
     [mux.c]
     revert:
     > revision 1.32
     > date: 2011/12/02 00:41:56;  author: djm;  state: Exp;  lines: +4 -1
     > fix bz#1948: ssh -f doesn't fork for multiplexed connection.
     > ok dtucker@
     it interacts badly with ControlPersist
   - djm@cvs.openbsd.org 2011/12/07 05:44:38
     [auth2.c dh.c packet.c roaming.h roaming_client.c roaming_common.c]
     fix some harmless and/or unreachable int overflows;
     reported Xi Wang, ok markus@

20111125
 - OpenBSD CVS Sync
   - oga@cvs.openbsd.org 2011/11/16 12:24:28
     [sftp.c]
     Don't leak list in complete_cmd_parse if there are no commands found.
     Discovered when I was ``borrowing'' this code for something else.
     ok djm@

20111121
 - (dtucker) [configure.ac] Set _FORTIFY_SOURCE.  ok djm@

20111104
 - (dtucker) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/10/18 05:15:28
     [ssh.c]
     ssh(1): skip attempting to create ~/.ssh when -F is passed; ok markus@
   - djm@cvs.openbsd.org 2011/10/18 23:37:42
     [ssh-add.c]
     add -k to usage(); reminded by jmc@
   - djm@cvs.openbsd.org 2011/10/19 00:06:10
     [moduli.c]
     s/tmpfile/tmp/ to make this -Wshadow clean
   - djm@cvs.openbsd.org 2011/10/19 10:39:48
     [umac.c]
     typo in comment; patch from Michael W. Bombardieri
   - djm@cvs.openbsd.org 2011/10/24 02:10:46
     [ssh.c]
     bz#1943: unbreak stdio forwarding when ControlPersist is in user - ssh
     was incorrectly requesting the forward in both the control master and
     slave. skip requesting it in the master to fix. ok markus@
   - djm@cvs.openbsd.org 2011/10/24 02:13:13
     [session.c]
     bz#1859: send tty break to pty master instead of (probably already
     closed) slave side; "looks good" markus@
   - dtucker@cvs.openbsd.org 011/11/04 00:09:39
     [moduli]
     regenerated moduli file; ok deraadt
 - (dtucker) [INSTALL LICENCE configure.ac openbsd-compat/Makefile.in
   openbsd-compat/getrrsetbyname-ldns.c openbsd-compat/getrrsetbyname.c]
   bz 1320: Add optional support for LDNS, a BSD licensed DNS resolver library
   which supports DNSSEC.  Patch from Simon Vallet (svallet at genoscope cns fr)
   with some rework from myself and djm.  ok djm.

20111025
 - (dtucker) [contrib/cygwin/Makefile] Continue if installing a doc file
   fails.  Patch from Corinna Vinschen.

20111018
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/10/04 14:17:32
     [sftp-glob.c]
     silence error spam for "ls */foo" in directory with files; bz#1683
   - dtucker@cvs.openbsd.org 2011/10/16 11:02:46
     [moduli.c ssh-keygen.1 ssh-keygen.c]
     Add optional checkpoints for moduli screening.  feedback & ok deraadt
   - jmc@cvs.openbsd.org 2011/10/16 15:02:41
     [ssh-keygen.c]
     put -K in the right place (usage());
   - stsp@cvs.openbsd.org 2011/10/16 15:51:39
     [moduli.c]
     add missing includes to unbreak tree; fix from rpointel
   - djm@cvs.openbsd.org 2011/10/18 04:58:26
     [auth-options.c key.c]
     remove explict search for \0 in packet strings, this job is now done
     implicitly by buffer_get_cstring; ok markus
   - djm@cvs.openbsd.org 2011/10/18 05:00:48
     [ssh-add.1 ssh-add.c]
     new "ssh-add -k" option to load plain keys (skipping certificates);
     "looks ok" markus@

20111001
 - (dtucker) [openbsd-compat/mktemp.c] Fix compiler warning.  ok djm
 - (dtucker) OpenBSD CVS Sync
   - dtucker@cvs.openbsd.org 2011/09/23 00:22:04
     [channels.c auth-options.c servconf.c channels.h sshd.8]
     Add wildcard support to PermitOpen, allowing things like "PermitOpen
     localhost:*".  bz #1857, ok djm markus.
   - markus@cvs.openbsd.org 2011/09/23 07:45:05
     [mux.c readconf.h channels.h compat.h compat.c ssh.c readconf.c channels.c
     version.h]
     unbreak remote portforwarding with dynamic allocated listen ports:
     1) send the actual listen port in the open message (instead of 0).
        this allows multiple forwardings with a dynamic listen port
     2) update the matching permit-open entry, so we can identify where
        to connect to
     report: den at skbkontur.ru and P. Szczygielski
     feedback and ok djm@
   - djm@cvs.openbsd.org 2011/09/25 05:44:47
     [auth2-pubkey.c]
     improve the AuthorizedPrincipalsFile debug log message to include
     file and line number
   - dtucker@cvs.openbsd.org 2011/09/30 00:47:37
     [sshd.c]
     don't attempt privsep cleanup when not using privsep; ok markus@
   - djm@cvs.openbsd.org 2011/09/30 21:22:49
     [sshd.c]
     fix inverted test that caused logspam; spotted by henning@

20110929
 - (djm) [configure.ac defines.h] No need to detect sizeof(char); patch
   from des AT des.no
 - (dtucker) [configure.ac openbsd-compat/Makefile.in
   openbsd-compat/strnlen.c] Add strnlen to the compat library.

20110923
 - (djm) [openbsd-compat/getcwd.c] Remove OpenBSD rcsid marker since we no
   longer want to sync this file (OpenBSD uses a __getcwd syscall now, we
   want this longhand version)
 - (djm) [openbsd-compat/getgrouplist.c] Remove OpenBSD rcsid marker: the
   upstream version is YPified and we don't want this
 - (djm) [openbsd-compat/mktemp.c] forklift upgrade to -current version.
   The file was totally rewritten between what we had in tree and -current.
 - (djm) [openbsd-compat/sha2.c openbsd-compat/sha2.h] Remove OpenBSD rcsid
   marker. The upstream API has changed (function and structure names)
   enough to put it out of sync with other providers of this interface.
 - (djm) [openbsd-compat/setenv.c] Forklift upgrade, including inclusion
   of static __findenv() function from upstream setenv.c
 - OpenBSD CVS Sync
   - millert@cvs.openbsd.org 2006/05/05 15:27:38
     [openbsd-compat/strlcpy.c]
     Convert do {} while loop -> while {} for clarity.  No binary change
     on most architectures.  From Oliver Smith.  OK deraadt@ and henning@
   - tobias@cvs.openbsd.org 2007/10/21 11:09:30
     [openbsd-compat/mktemp.c]
     Comment fix about time consumption of _gettemp.
     FreeBSD did this in revision 1.20.
     OK deraadt@, krw@
   - deraadt@cvs.openbsd.org 2008/07/22 21:47:45
     [openbsd-compat/mktemp.c]
     use arc4random_uniform(); ok djm millert
   - millert@cvs.openbsd.org 2008/08/21 16:54:44
     [openbsd-compat/mktemp.c]
     Remove useless code, the kernel will set errno appropriately if an
     element in the path does not exist.  OK deraadt@ pvalchev@
   - otto@cvs.openbsd.org 2008/12/09 19:38:38
     [openbsd-compat/inet_ntop.c]
     fix inet_ntop(3) prototype; ok millert@ libc to be bumbed very soon

20110922
 - OpenBSD CVS Sync
   - pyr@cvs.openbsd.org 2011/05/12 07:15:10
     [openbsd-compat/glob.c]
     When the max number of items for a directory has reached GLOB_LIMIT_READDIR
     an error is returned but closedir() is not called.
     spotted and fix provided by Frank Denis obsd-tech@pureftpd.org
     ok otto@, millert@
   - stsp@cvs.openbsd.org 2011/09/20 10:18:46
     [glob.c]
     In glob(3), limit recursion during matching attempts. Similar to
     fnmatch fix. Also collapse consecutive '*' (from NetBSD).
     ok miod deraadt
   - djm@cvs.openbsd.org 2011/09/22 06:27:29
     [glob.c]
     fix GLOB_KEEPSTAT without GLOB_NOSORT; the implicit sort was being
     applied only to the gl_pathv vector and not the corresponding gl_statv
     array. reported in OpenSSH bz#1935; feedback and okay matthew@
   - djm@cvs.openbsd.org 2011/08/26 01:45:15
     [ssh.1]
     Add some missing ssh_config(5) options that can be used in ssh(1)'s
     -o argument. Patch from duclare AT guu.fi
   - djm@cvs.openbsd.org 2011/09/05 05:56:13
     [scp.1 sftp.1]
     mention ControlPersist and KbdInteractiveAuthentication in the -o
     verbiage in these pages too (prompted by jmc@)
   - djm@cvs.openbsd.org 2011/09/05 05:59:08
     [misc.c]
     fix typo in IPQoS parsing: there is no "AF14" class, but there is
     an "AF21" class. Spotted by giesen AT snickers.org; ok markus stevesk
   - jmc@cvs.openbsd.org 2011/09/05 07:01:44
     [scp.1]
     knock out a useless Ns;
   - deraadt@cvs.openbsd.org 2011/09/07 02:18:31
     [ssh-keygen.1]
     typo (they vs the) found by Lawrence Teo
   - djm@cvs.openbsd.org 2011/09/09 00:43:00
     [ssh_config.5 sshd_config.5]
     fix typo in IPQoS parsing: there is no "AF14" class, but there is
     an "AF21" class. Spotted by giesen AT snickers.org; ok markus stevesk
   - djm@cvs.openbsd.org 2011/09/09 00:44:07
     [PROTOCOL.mux]
     MUX_C_CLOSE_FWD includes forward type in message (though it isn't
     implemented anyway)
   - djm@cvs.openbsd.org 2011/09/09 22:37:01
     [scp.c]
     suppress adding '--' to remote commandlines when the first argument
     does not start with '-'. saves breakage on some difficult-to-upgrade
     embedded/router platforms; feedback & ok dtucker ok markus
   - djm@cvs.openbsd.org 2011/09/09 22:38:21
     [sshd.c]
     kill the preauth privsep child on fatal errors in the monitor;
     ok markus@
   - djm@cvs.openbsd.org 2011/09/09 22:46:44
     [channels.c channels.h clientloop.h mux.c ssh.c]
     support for cancelling local and remote port forwards via the multiplex
     socket. Use ssh -O cancel -L xx:xx:xx -R yy:yy:yy user@host" to request
     the cancellation of the specified forwardings; ok markus@
   - markus@cvs.openbsd.org 2011/09/10 22:26:34
     [channels.c channels.h clientloop.c ssh.1]
     support cancellation of local/dynamic forwardings from ~C commandline;
     ok & feedback djm@
   - okan@cvs.openbsd.org 2011/09/11 06:59:05
     [ssh.1]
     document new -O cancel command; ok djm@
   - markus@cvs.openbsd.org 2011/09/11 16:07:26
     [sftp-client.c]
     fix leaks in do_hardlink() and do_readlink(); bz#1921
     from Loganaden Velvindron
   - markus@cvs.openbsd.org 2011/09/12 08:46:15
     [sftp-client.c]
     fix leak in do_lsreaddir(); ok djm
   - djm@cvs.openbsd.org 2011/09/22 06:29:03
     [sftp.c]
     don't let remote_glob() implicitly sort its results in do_globbed_ls() -
     in all likelihood, they will be resorted anyway

20110909
 - (dtucker) [entropy.h] Bug #1932: remove old definition of init_rng.  From
   Colin Watson.

20110906
 - (djm) [README version.h] Correct version
 - (djm) [contrib/redhat/openssh.spec] Correct restorcon => restorecon
 - (djm) Respin OpenSSH-5.9p1 release

20110905
 - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec]
   [contrib/suse/openssh.spec] Update version numbers.

20110904
 - (djm) [regress/connect-privsep.sh regress/test-exec.sh] demote fatal
   regress errors for the sandbox to warnings. ok tim dtucker
 - (dtucker) [ssh-keygen.c ssh-pkcs11.c] Bug #1929: add null implementations
   ofsh-pkcs11.cpkcs_init and pkcs_terminate for building without dlopen
   support.

20110829
 - (djm) [openbsd-compat/port-linux.c] Suppress logging when attempting
   to switch SELinux context away from unconfined_t, based on patch from
   Jan Chadima; bz#1919 ok dtucker@

20110827
 - (dtucker) [auth-skey.c] Add log.h to fix build --with-skey.

20110818
 - (tim) [configure.ac] Typo in error message spotted by Andy Tsouladze

20110817
 - (tim) [mac.c myproposal.h] Wrap SHA256 and SHA512 in ifdefs for
   OpenSSL 0.9.7. ok djm
 - (djm) [ openbsd-compat/bsd-cygwin_util.c openbsd-compat/bsd-cygwin_util.h]
   binary_pipe is no longer required on Cygwin; patch from Corinna Vinschen
 - (djm) [configure.ac] error out if the host lacks the necessary bits for
   an explicitly requested sandbox type
 - (djm) [contrib/ssh-copy-id] Missing backlslash; spotted by
   bisson AT archlinux.org
 - (djm) OpenBSD CVS Sync
   - dtucker@cvs.openbsd.org 2011/06/03 05:35:10
     [regress/cfgmatch.sh]
     use OBJ to find test configs, patch from Tim Rice
   - markus@cvs.openbsd.org 2011/06/30 22:44:43
     [regress/connect-privsep.sh]
     test with sandbox enabled; ok djm@
   - djm@cvs.openbsd.org 2011/08/02 01:23:41
     [regress/cipher-speed.sh regress/try-ciphers.sh]
     add SHA256/SHA512 based HMAC modes
 - (djm) [regress/cipher-speed.sh regress/try-ciphers.sh] disable HMAC-SHA2
   MAC tests for platforms that hack EVP_SHA2 support

20110812
 - (dtucker) [openbsd-compat/port-linux.c] Bug 1924: Improve selinux context
   change error by reporting old and new context names  Patch from
   jchadima at redhat.
 - (djm) [contrib/redhat/openssh.spec contrib/redhat/sshd.init]
   [contrib/suse/openssh.spec contrib/suse/rc.sshd] Updated RHEL and SLES
   init scrips from imorgan AT nas.nasa.gov; bz#1920
 - (djm) [contrib/ssh-copy-id] Fix failure for cases where the path to the
   identify file contained whitespace. bz#1828 patch from gwenael.lambrouin
   AT gmail.com; ok dtucker@

20110807
 - (dtucker) OpenBSD CVS Sync
   - jmc@cvs.openbsd.org 2008/06/26 06:59:39
     [moduli.5]
     tweak previous;
   - sobrado@cvs.openbsd.org 2009/10/28 08:56:54
     [moduli.5]
     "Diffie-Hellman" is the usual spelling for the cryptographic protocol
     first published by Whitfield Diffie and Martin Hellman in 1976.
     ok jmc@
   - jmc@cvs.openbsd.org 2010/10/14 20:41:28
     [moduli.5]
     probabalistic -> probabilistic; from naddy
   - dtucker@cvs.openbsd.org 2011/08/07 12:55:30
     [sftp.1]
     typo, fix from Laurent Gautrot

20110805
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/06/23 23:35:42
     [monitor.c]
     ignore EINTR errors from poll()
   - tedu@cvs.openbsd.org 2011/07/06 18:09:21
     [authfd.c]
     bzero the agent address.  the kernel was for a while very cranky about
     these things.  evne though that's fixed, always good to initialize
     memory.  ok deraadt djm
   - djm@cvs.openbsd.org 2011/07/29 14:42:45
     [sandbox-systrace.c]
     fail open(2) with EPERM rather than SIGKILLing the whole process. libc
     will call open() to do strerror() when NLS is enabled;
     feedback and ok markus@
   - markus@cvs.openbsd.org 2011/08/01 19:18:15
     [gss-serv.c]
     prevent post-auth resource exhaustion (int overflow leading to 4GB malloc);
     report Adam Zabrock; ok djm@, deraadt@
   - djm@cvs.openbsd.org 2011/08/02 01:22:11
     [mac.c myproposal.h ssh.1 ssh_config.5 sshd.8 sshd_config.5]
     Add new SHA256 and SHA512 based HMAC modes from
     http://www.ietf.org/id/draft-dbider-sha2-mac-for-ssh-02.txt
     Patch from mdb AT juniper.net; feedback and ok markus@
   - djm@cvs.openbsd.org 2011/08/02 23:13:01
     [version.h]
     crank now, release later
   - djm@cvs.openbsd.org 2011/08/02 23:15:03
     [ssh.c]
     typo in comment

20110624
 - (djm) [configure.ac Makefile.in sandbox-darwin.c] Add a sandbox for
   Darwin/OS X using sandbox_init() + setrlimit(); feedback and testing
   markus@

20110623
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/06/22 21:47:28
     [servconf.c]
     reuse the multistate option arrays to pretty-print options for "sshd -T"
   - djm@cvs.openbsd.org 2011/06/22 21:57:01
     [servconf.c servconf.h sshd.c sshd_config.5]
     [configure.ac Makefile.in]
     introduce sandboxing of the pre-auth privsep child using systrace(4).
     
     This introduces a new "UsePrivilegeSeparation=sandbox" option for
     sshd_config that applies mandatory restrictions on the syscalls the
     privsep child can perform. This prevents a compromised privsep child
     from being used to attack other hosts (by opening sockets and proxying)
     or probing local kernel attack surface.
     
     The sandbox is implemented using systrace(4) in unsupervised "fast-path"
     mode, where a list of permitted syscalls is supplied. Any syscall not
     on the list results in SIGKILL being sent to the privsep child. Note
     that this requires a kernel with the new SYSTR_POLICY_KILL option.
     
     UsePrivilegeSeparation=sandbox will become the default in the future
     so please start testing it now.
     
     feedback dtucker@; ok markus@
   - djm@cvs.openbsd.org 2011/06/22 22:08:42
     [channels.c channels.h clientloop.c clientloop.h mux.c ssh.c]
     hook up a channel confirm callback to warn the user then requested X11
     forwarding was refused by the server; ok markus@
   - djm@cvs.openbsd.org 2011/06/23 09:34:13
     [sshd.c ssh-sandbox.h sandbox.h sandbox-rlimit.c sandbox-systrace.c]
     [sandbox-null.c]
     rename sandbox.h => ssh-sandbox.h to make things easier for portable
 - (djm) [sandbox-null.c] Dummy sandbox for platforms that don't support
   setrlimit(2)

20110620
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/06/04 00:10:26
     [ssh_config.5]
     explain IdentifyFile's semantics a little better, prompted by bz#1898
     ok dtucker jmc
   - markus@cvs.openbsd.org 2011/06/14 22:49:18
     [authfile.c]
     make sure key_parse_public/private_rsa1() no longer consumes its input
     buffer.  fixes ssh-add for passphrase-protected ssh1-keys;
     noted by naddy@; ok djm@
   - djm@cvs.openbsd.org 2011/06/17 21:44:31
     [log.c log.h monitor.c monitor.h monitor_wrap.c monitor_wrap.h sshd.c]
     make the pre-auth privsep slave log via a socketpair shared with the
     monitor rather than /var/empty/dev/log; ok dtucker@ deraadt@ markus@
   - djm@cvs.openbsd.org 2011/06/17 21:46:16
     [sftp-server.c]
     the protocol version should be unsigned; bz#1913 reported by mb AT
     smartftp.com
   - djm@cvs.openbsd.org 2011/06/17 21:47:35
     [servconf.c]
     factor out multi-choice option parsing into a parse_multistate label
     and some support structures; ok dtucker@
   - djm@cvs.openbsd.org 2011/06/17 21:57:25
     [clientloop.c]
     setproctitle for a mux master that has been gracefully stopped;
     bz#1911 from Bert.Wesarg AT googlemail.com

20110603
 - (dtucker) [README version.h contrib/caldera/openssh.spec
   contrib/redhat/openssh.spec contrib/suse/openssh.spec] Pull the version
   bumps from the 5.8p2 branch into HEAD.  ok djm.
 - (tim) [configure.ac defines.h] Run test program to detect system mail
   directory. Add --with-maildir option to override. Fixed OpenServer 6
   getting it wrong. Fixed many systems having MAIL=/var/mail//username
   ok dtucker
 - (dtucker) [monitor.c] Remove the !HAVE_SOCKETPAIR case.  We use socketpair
   unconditionally in other places and the survey data we have does not show
   any systems that use it.  "nuke it" djm@
 - (djm) [configure.ac] enable setproctitle emulation for OS X
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/06/03 00:54:38
     [ssh.c]
     bz#1883 - setproctitle() to identify mux master; patch from Bert.Wesarg
     AT googlemail.com; ok dtucker@
     NB. includes additional portability code to enable setproctitle emulation
     on platforms that don't support it.
   - dtucker@cvs.openbsd.org 2011/06/03 01:37:40
     [ssh-agent.c]
     Check current parent process ID against saved one to determine if the parent
     has exited, rather than attempting to send a zero signal, since the latter
     won't work if the parent has changed privs.  bz#1905, patch from Daniel Kahn
     Gillmor, ok djm@
    - dtucker@cvs.openbsd.org 2011/05/31 02:01:58
     [regress/dynamic-forward.sh]
     back out revs 1.6 and 1.5 since it's not reliable
   - dtucker@cvs.openbsd.org 2011/05/31 02:03:34
     [regress/dynamic-forward.sh]
     work around startup and teardown races; caught by deraadt
   - dtucker@cvs.openbsd.org 2011/06/03 00:29:52
     [regress/dynamic-forward.sh]
     Retry establishing the port forwarding after a small delay, should make
     the tests less flaky when the previous test is slow to shut down and free
     up the port.
 - (tim) [regress/cfgmatch.sh] Build/test out of tree fix.

20110529
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/05/23 03:30:07
     [auth-rsa.c auth.c auth.h auth2-pubkey.c monitor.c monitor_wrap.c]
     [pathnames.h servconf.c servconf.h sshd.8 sshd_config sshd_config.5]
     allow AuthorizedKeysFile to specify multiple files, separated by spaces.
     Bring back authorized_keys2 as a default search path (to avoid breaking
     existing users of this file), but override this in sshd_config so it will
     be no longer used on fresh installs. Maybe in 2015 we can remove it
     entierly :)
     
     feedback and ok markus@ dtucker@
   - djm@cvs.openbsd.org 2011/05/23 03:33:38
     [auth.c]
     make secure_filename() spam debug logs less
   - djm@cvs.openbsd.org 2011/05/23 03:52:55
     [sshconnect.c]
     remove extra newline
   - jmc@cvs.openbsd.org 2011/05/23 07:10:21
     [sshd.8 sshd_config.5]
     tweak previous; ok djm
   - djm@cvs.openbsd.org 2011/05/23 07:24:57
     [authfile.c]
     read in key comments for v.2 keys (though note that these are not
     passed over the agent protocol); bz#439, based on patch from binder
     AT arago.de; ok markus@
   - djm@cvs.openbsd.org 2011/05/24 07:15:47
     [readconf.c readconf.h ssh.c ssh_config.5 sshconnect.c sshconnect2.c]
     Remove undocumented legacy options UserKnownHostsFile2 and
     GlobalKnownHostsFile2 by making UserKnownHostsFile/GlobalKnownHostsFile
     accept multiple paths per line and making their defaults include
     known_hosts2; ok markus
   - djm@cvs.openbsd.org 2011/05/23 03:31:31
     [regress/cfgmatch.sh]
     include testing of multiple/overridden AuthorizedKeysFiles
     refactor to simply daemon start/stop and get rid of racy constructs

20110520
 - (djm) [session.c] call setexeccon() before executing passwd for pw
   changes; bz#1891 reported by jchadima AT redhat.com; ok dtucker@
 - (djm) [aclocal.m4 configure.ac] since gcc-4.x ignores all -Wno-options
   options, we should corresponding -W-option when trying to determine
   whether it is accepted.  Also includes a warning fix on the program
   fragment uses (bad main() return type).
   bz#1900 and bz#1901 reported by g.esp AT free.fr; ok dtucker@
 - (djm) [servconf.c] remove leftover droppings of AuthorizedKeysFile2
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/05/15 08:09:01
     [authfd.c monitor.c serverloop.c]
     use FD_CLOEXEC consistently; patch from zion AT x96.org
   - djm@cvs.openbsd.org 2011/05/17 07:13:31
     [key.c]
     fatal() if asked to generate a legacy ECDSA cert (these don't exist)
     and fix the regress test that was trying to generate them :)
   - djm@cvs.openbsd.org 2011/05/20 00:55:02
     [servconf.c]
     the options TrustedUserCAKeys, RevokedKeysFile, AuthorizedKeysFile
     and AuthorizedPrincipalsFile were not being correctly applied in
     Match blocks, despite being overridable there; ok dtucker@
   - dtucker@cvs.openbsd.org 2011/05/20 02:00:19
     [servconf.c]
     Add comment documenting what should be after the preauth check.  ok djm
   - djm@cvs.openbsd.org 2011/05/20 03:25:45
     [monitor.c monitor_wrap.c servconf.c servconf.h]
     use a macro to define which string options to copy between configs
     for Match. This avoids problems caused by forgetting to keep three
     code locations in perfect sync and ordering
     
     "this is at once beautiful and horrible" + ok dtucker@
   - djm@cvs.openbsd.org 2011/05/17 07:13:31
     [regress/cert-userkey.sh]
     fatal() if asked to generate a legacy ECDSA cert (these don't exist)
     and fix the regress test that was trying to generate them :)
   - djm@cvs.openbsd.org 2011/05/20 02:43:36
     [cert-hostkey.sh]
     another attempt to generate a v00 ECDSA key that broke the test
     ID sync only - portable already had this somehow
   - dtucker@cvs.openbsd.org 2011/05/20 05:19:50
     [dynamic-forward.sh]
     Prevent races in dynamic forwarding test; ok djm
   - dtucker@cvs.openbsd.org 2011/05/20 06:32:30
     [dynamic-forward.sh]
     fix dumb error in dynamic-forward test

20110515
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/05/05 05:12:08
     [mux.c]
     gracefully fall back when ControlPath is too large for a
     sockaddr_un. ok markus@ as part of a larger diff
   - dtucker@cvs.openbsd.org 2011/05/06 01:03:35
     [sshd_config]
     clarify language about overriding defaults.  bz#1892, from Petr Cerny
   - djm@cvs.openbsd.org 2011/05/06 01:09:53
     [sftp.1]
     mention that IPv6 addresses must be enclosed in square brackets;
     bz#1845
   - djm@cvs.openbsd.org 2011/05/06 02:05:41
     [sshconnect2.c]
     fix memory leak; bz#1849 ok dtucker@
   - djm@cvs.openbsd.org 2011/05/06 21:14:05
     [packet.c packet.h]
     set traffic class for IPv6 traffic as we do for IPv4 TOS;
     patch from lionel AT mamane.lu via Colin Watson in bz#1855;
     ok markus@
   - djm@cvs.openbsd.org 2011/05/06 21:18:02
     [ssh.c ssh_config.5]
     add a %L expansion (short-form of the local host name) for ControlPath;
     sync some more expansions with LocalCommand; ok markus@
   - djm@cvs.openbsd.org 2011/05/06 21:31:38
     [readconf.c ssh_config.5]
     support negated Host matching, e.g.
     
     Host *.example.org !c.example.org
        User mekmitasdigoat
     
     Will match "a.example.org", "b.example.org", but not "c.example.org"
     ok markus@
   - djm@cvs.openbsd.org 2011/05/06 21:34:32
     [clientloop.c mux.c readconf.c readconf.h ssh.c ssh_config.5]
     Add a RequestTTY ssh_config option to allow configuration-based
     control over tty allocation (like -t/-T); ok markus@
   - djm@cvs.openbsd.org 2011/05/06 21:38:58
     [ssh.c]
     fix dropping from previous diff
   - djm@cvs.openbsd.org 2011/05/06 22:20:10
     [PROTOCOL.mux]
     fix numbering; from bert.wesarg AT googlemail.com
   - jmc@cvs.openbsd.org 2011/05/07 23:19:39
     [ssh_config.5]
     - tweak previous
     - come consistency fixes
     ok djm
   - jmc@cvs.openbsd.org 2011/05/07 23:20:25
     [ssh.1]
     +.It RequestTTY
   - djm@cvs.openbsd.org 2011/05/08 12:52:01
     [PROTOCOL.mux clientloop.c clientloop.h mux.c]
     improve our behaviour when TTY allocation fails: if we are in
     RequestTTY=auto mode (the default), then do not treat at TTY
     allocation error as fatal but rather just restore the local TTY
     to cooked mode and continue. This is more graceful on devices that
     never allocate TTYs.
     
     If RequestTTY is set to "yes" or "force", then failure to allocate
     a TTY is fatal.
     
     ok markus@
   - djm@cvs.openbsd.org 2011/05/10 05:46:46
     [authfile.c]
     despam debug() logs by detecting that we are trying to load a private key
     in key_try_load_public() and returning early; ok markus@
   - djm@cvs.openbsd.org 2011/05/11 04:47:06
     [auth.c auth.h auth2-pubkey.c pathnames.h servconf.c servconf.h]
     remove support for authorized_keys2; it is a relic from the early days
     of protocol v.2 support and has been undocumented for many years;
     ok markus@
   - djm@cvs.openbsd.org 2011/05/13 00:05:36
     [authfile.c]
     warn on unexpected key type in key_parse_private_type()
 - (djm) [packet.c] unbreak portability #endif

20110510
 - (dtucker) [openbsd-compat/openssl-compat.{c,h}] Bug #1882: fix
   --with-ssl-engine which was broken with the change from deprecated
   SSLeay_add_all_algorithms().  ok djm

20110506
 - (dtucker) [openbsd-compat/regress/closefromtest.c] Bug #1875: add prototype
   for closefrom() in test code.  Report from Dan Wallis via Gentoo.

20110505
 - (djm) [defines.h] Move up include of netinet/ip.h for IPTOS
   definitions. From des AT des.no
 - (djm) [Makefile.in WARNING.RNG aclocal.m4 buildpkg.sh.in configure.ac]
   [entropy.c ssh-add.c ssh-agent.c ssh-keygen.c ssh-keyscan.c]
   [ssh-keysign.c ssh-pkcs11-helper.c ssh-rand-helper.8 ssh-rand-helper.c]
   [ssh.c ssh_prng_cmds.in sshd.c contrib/aix/buildbff.sh]
   [regress/README.regress] Remove ssh-rand-helper and all its
   tentacles. PRNGd seeding has been rolled into entropy.c directly.
   Thanks to tim@ for testing on affected platforms.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/03/10 02:52:57
     [auth2-gss.c auth2.c auth.h]
     allow GSSAPI authentication to detect when a server-side failure causes
     authentication failure and don't count such failures against MaxAuthTries;
     bz#1244 from simon AT sxw.org.uk; ok markus@ before lock
   - okan@cvs.openbsd.org 2011/03/15 10:36:02
     [ssh-keyscan.c]
     use timerclear macro
     ok djm@
   - stevesk@cvs.openbsd.org 2011/03/23 15:16:22
     [ssh-keygen.1 ssh-keygen.c]
     Add -A option.  For each of the key types (rsa1, rsa, dsa and ecdsa)
     for which host keys do not exist, generate the host keys with the
     default key file path, an empty passphrase, default bits for the key
     type, and default comment.  This will be used by /etc/rc to generate
     new host keys.  Idea from deraadt.
     ok deraadt
   - stevesk@cvs.openbsd.org 2011/03/23 16:24:56
     [ssh-keygen.1]
     -q not used in /etc/rc now so remove statement.
   - stevesk@cvs.openbsd.org 2011/03/23 16:50:04
     [ssh-keygen.c]
     remove -d, documentation removed >10 years ago; ok markus
   - jmc@cvs.openbsd.org 2011/03/24 15:29:30
     [ssh-keygen.1]
     zap trailing whitespace;
   - stevesk@cvs.openbsd.org 2011/03/24 22:14:54
     [ssh-keygen.c]
     use strcasecmp() for "clear" cert permission option also; ok djm
   - stevesk@cvs.openbsd.org 2011/03/29 18:54:17
     [misc.c misc.h servconf.c]
     print ipqos friendly string for sshd -T; ok markus
     # sshd -Tf sshd_config|grep ipqos
     ipqos lowdelay throughput
   - djm@cvs.openbsd.org 2011/04/12 04:23:50
     [ssh-keygen.c]
     fix -Wshadow
   - djm@cvs.openbsd.org 2011/04/12 05:32:49
     [sshd.c]
     exit with 0 status on SIGTERM; bz#1879
   - djm@cvs.openbsd.org 2011/04/13 04:02:48
     [ssh-keygen.1]
     improve wording; bz#1861
   - djm@cvs.openbsd.org 2011/04/13 04:09:37
     [ssh-keygen.1]
     mention valid -b sizes for ECDSA keys; bz#1862
   - djm@cvs.openbsd.org 2011/04/17 22:42:42
     [PROTOCOL.mux clientloop.c clientloop.h mux.c ssh.1 ssh.c]
     allow graceful shutdown of multiplexing: request that a mux server
     removes its listener socket and refuse future multiplexing requests;
     ok markus@
   - djm@cvs.openbsd.org 2011/04/18 00:46:05
     [ssh-keygen.c]
     certificate options are supposed to be packed in lexical order of
     option name (though we don't actually enforce this at present).
     Move one up that was out of sequence
   - djm@cvs.openbsd.org 2011/05/04 21:15:29
     [authfile.c authfile.h ssh-add.c]
     allow "ssh-add - < key"; feedback and ok markus@
 - (tim) [configure.ac] Add AC_LANG_SOURCE to OPENSSH_CHECK_CFLAG_COMPILE
   so autoreconf 2.68 is happy.
 - (tim) [defines.h] Deal with platforms that do not have S_IFSOCK ok djm@

20110221
 - (dtucker) [contrib/cygwin/ssh-host-config] From Corinna: revamp of the
   Cygwin-specific service installer script ssh-host-config.  The actual
   functionality is the same, the revisited version is just more
   exact when it comes to check for problems which disallow to run
   certain aspects of the script.  So, part of this script and the also
   rearranged service helper script library "csih" is to check if all
   the tools required to run the script are available on the system.
   The new script also is more thorough to inform the user why the
   script failed.  Patch from vinschen at redhat com.

20110218
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/02/16 00:31:14
     [ssh-keysign.c]
     make hostbased auth with ECDSA keys work correctly. Based on patch
     by harvey.eneman AT oracle.com in bz#1858; ok markus@ (pre-lock)

20110206
 - (dtucker) [openbsd-compat/port-linux.c] Bug #1851: fix syntax error in
   selinux code.  Patch from Leonardo Chiquitto 
 - (dtucker) [contrib/cygwin/ssh-{host,user}-config]  Add ECDSA key
   generation and simplify.  Patch from Corinna Vinschen.

20110204
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/31 21:42:15
     [PROTOCOL.mux]
     cut'n'pasto; from bert.wesarg AT googlemail.com
   - djm@cvs.openbsd.org 2011/02/04 00:44:21
     [key.c]
     fix uninitialised nonce variable; reported by Mateusz Kocielski
   - djm@cvs.openbsd.org 2011/02/04 00:44:43
     [version.h]
     openssh-5.8
 - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec]
   [contrib/suse/openssh.spec] update versions in docs and spec files.
 - Release OpenSSH 5.8p1

20110128
 - (djm) [openbsd-compat/port-linux.c] Check whether SELinux is enabled
   before attempting setfscreatecon(). Check whether matchpathcon()
   succeeded before using its result. Patch from cjwatson AT debian.org;
   bz#1851

20110127
 - (tim) [config.guess config.sub] Sync with upstream.
 - (tim) [configure.ac] Consistent M4 quoting throughout, updated obsolete
   AC_TRY_COMPILE with AC_COMPILE_IFELSE, updated obsolete AC_TRY_LINK with
   AC_LINK_IFELSE, updated obsolete AC_TRY_RUN with AC_RUN_IFELSE, misc white
   space changes for consistency/readability. Makes autoconf 2.68 happy.
   "Nice work" djm

20110125
 - (djm) [configure.ac Makefile.in ssh.c openbsd-compat/port-linux.c
   openbsd-compat/port-linux.h] Move SELinux-specific code from ssh.c to
   port-linux.c to avoid compilation errors. Add -lselinux to ssh when
   building with SELinux support to avoid linking failure; report from
   amk AT spamfence.net; ok dtucker

20110122
 - (dtucker) [configure.ac openbsd-compat/openssl-compat.{c,h}] Add
   RSA_get_default_method() for the benefit of openssl versions that don't
   have it (at least openssl-engine-0.9.6b).  Found and tested by Kevin Brott,
   ok djm@.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/22 09:18:53
     [version.h]
     crank to OpenSSH-5.7
 - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec]
   [contrib/suse/openssh.spec] update versions in docs and spec files.
 - (djm) Release 5.7p1

20110119
 - (tim) [contrib/caldera/openssh.spec] Use CFLAGS from Makefile instead
   of RPM so build completes. Signatures were changed to .asc since 4.1p1.
 - (djm) [configure.ac] Disable ECC on OpenSSL <0.9.8g. Releases prior to
   0.9.8 lacked it, and 0.9.8a through 0.9.8d have proven buggy in pre-
   release testing (random crashes and failure to load ECC keys).
   ok dtucker@

20110117
 - (djm) [regress/Makefile] use $TEST_SSH_KEYGEN instead of the one in
   $PATH, fix cleanup of droppings; reported by openssh AT
   roumenpetrov.info; ok dtucker@
 - (djm) [regress/agent-ptrace.sh] Fix false failure on OS X by adding
   its unique snowflake of a gdb error to the ones we look for.
 - (djm) [regress/agent-getpeereid.sh] leave stdout attached when running
   ssh-add to avoid $SUDO failures on Linux
 - (dtucker) [openbsd-compat/port-linux.c] Bug #1838: Add support for the new
   Linux OOM-killer magic values that changed in 2.6.36 kernels, with fallback
   to the old values.  Feedback from vapier at gentoo org and djm, ok djm.
 - (djm) [configure.ac regress/agent-getpeereid.sh regress/multiplex.sh]
   [regress/sftp-glob.sh regress/test-exec.sh] Rework how feature tests are
   disabled on platforms that do not support them; add a "config_defined()"
   shell function that greps for defines in config.h and use them to decide
   on feature tests.
   Convert a couple of existing grep's over config.h to use the new function
   Add a define "FILESYSTEM_NO_BACKSLASH" for filesystem that can't represent
   backslash characters in filenames, enable it for Cygwin and use it to turn
   of tests for quotes backslashes in sftp-glob.sh.
   based on discussion with vinschen AT redhat.com and dtucker@; ok dtucker@
 - (tim) [regress/agent-getpeereid.sh] shell portability fix.
 - (dtucker) [openbsd-compat/port-linux.c] Fix minor bug caught by -Werror on
   the tinderbox.
 - (dtucker) [LICENCE Makefile.in audit-bsm.c audit-linux.c audit.c audit.h
   configure.ac defines.h loginrec.c]  Bug #1402: add linux audit subsystem
   support, based on patches from Tomas Mraz and jchadima at redhat.

20110116
 - (dtucker) [Makefile.in configure.ac regress/kextype.sh] Skip sha256-based
   on configurations that don't have it.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/16 11:50:05
     [clientloop.c]
     Use atomicio when flushing protocol 1 std{out,err} buffers at
     session close. This was a latent bug exposed by setting a SIGCHLD
     handler and spotted by kevin.brott AT gmail.com; ok dtucker@
   - djm@cvs.openbsd.org 2011/01/16 11:50:36
     [sshconnect.c]
     reset the SIGPIPE handler when forking to execute child processes;
     ok dtucker@
   - djm@cvs.openbsd.org 2011/01/16 12:05:59
     [clientloop.c]
     a couple more tweaks to the post-close protocol 1 stderr/stdout flush:
     now that we use atomicio(), convert them from while loops to if statements
     add test and cast to compile cleanly with -Wsigned

20110114
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/13 21:54:53
     [mux.c]
     correct error messages; patch from bert.wesarg AT googlemail.com
   - djm@cvs.openbsd.org 2011/01/13 21:55:25
     [PROTOCOL.mux]
     correct protocol names and add a couple of missing protocol number
     defines; patch from bert.wesarg AT googlemail.com
 - (djm) [Makefile.in] Use shell test to disable ecdsa key generating in
   host-key-force target rather than a substitution that is replaced with a
   comment so that the Makefile.in is still a syntactically valid Makefile
   (useful to run the distprep target)
 - (tim) [regress/cert-hostkey.sh] Typo. Missing $ on variable name.
 - (tim) [regress/cert-hostkey.sh] Add missing TEST_SSH_ECC guard around some
   ecdsa bits.

20110113
 - (djm) [misc.c] include time.h for nanosleep() prototype
 - (tim) [Makefile.in] test the ECC bits if we have the capability. ok djm
 - (tim) [Makefile.in configure.ac opensshd.init.in] Add support for generating
   ecdsa keys. ok djm.
 - (djm) [entropy.c] cast OPENSSL_VERSION_NUMBER to u_long to avoid
   gcc warning on platforms where it defaults to int
 - (djm) [regress/Makefile] add a few more generated files to the clean
   target
 - (djm) [myproposal.h] Fix reversed OPENSSL_VERSION_NUMBER test and bad
   #define that was causing diffie-hellman-group-exchange-sha256 to be
   incorrectly disabled
 - (djm) [regress/kextype.sh] Testing diffie-hellman-group-exchange-sha256
   should not depend on ECC support

20110112
 - OpenBSD CVS Sync
   - nicm@cvs.openbsd.org 2010/10/08 21:48:42
     [openbsd-compat/glob.c]
     Extend GLOB_LIMIT to cover readdir and stat and bump the malloc limit
     from ARG_MAX to 64K.
     Fixes glob-using programs (notably ftp) able to be triggered to hit
     resource limits.
     Idea from a similar NetBSD change, original problem reported by jasper@.
     ok millert tedu jasper
   - djm@cvs.openbsd.org 2011/01/12 01:53:14
     avoid some integer overflows mostly with GLOB_APPEND and GLOB_DOOFFS
     and sanity check arguments (these will be unnecessary when we switch
     struct glob members from being type into to size_t in the future);
     "looks ok" tedu@ feedback guenther@
 - (djm) [configure.ac] Turn on -Wno-unused-result for gcc >= 4.4 to avoid
   silly warnings on write() calls we don't care succeed or not.
 - (djm) [configure.ac] Fix broken test for gcc >= 4.4 with per-compiler
   flag tests that don't depend on gcc version at all; suggested by and
   ok dtucker@

20110111
 - (tim) [regress/host-expand.sh] Fix for building outside of read only
   source tree.
 - (djm) [platform.c] Some missing includes that show up under -Werror
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/08 10:51:51
     [clientloop.c]
     use host and not options.hostname, as the latter may have unescaped
     substitution characters
   - djm@cvs.openbsd.org 2011/01/11 06:06:09
     [sshlogin.c]
     fd leak on error paths; from zinovik@
     NB. Id sync only; we use loginrec.c that was also audited and fixed
     recently
   - djm@cvs.openbsd.org 2011/01/11 06:13:10
     [clientloop.c ssh-keygen.c sshd.c]
     some unsigned long long casts that make things a bit easier for
     portable without resorting to dropping PRIu64 formats everywhere

20110109
 - (djm) [Makefile.in] list ssh_host_ecdsa key in PATHSUBS; spotted by
   openssh AT roumenpetrov.info

20110108
 - (djm) [regress/keytype.sh] s/echo -n/echon/ to repair failing regress
   test on OSX and others. Reported by imorgan AT nas.nasa.gov

20110107
 - (djm) [regress/cert-hostkey.sh regress/cert-userkey.sh] fix shell test
   for no-ECC case. Patch from cristian.ionescu-idbohrn AT axis.com
   - djm@cvs.openbsd.org 2011/01/06 22:23:53
     [ssh.c]
     unbreak %n expansion in LocalCommand; patch from bert.wesarg AT
     googlemail.com; ok markus@
   - djm@cvs.openbsd.org 2011/01/06 22:23:02
     [clientloop.c]
     when exiting due to ServerAliveTimeout, mention the hostname that caused
     it (useful with backgrounded controlmaster)
   - djm@cvs.openbsd.org 2011/01/06 22:46:21
     [regress/Makefile regress/host-expand.sh]
     regress test for LocalCommand %n expansion from bert.wesarg AT
     googlemail.com; ok markus@
   - djm@cvs.openbsd.org 2011/01/06 23:01:35
     [sshconnect.c]
     reset SIGCHLD handler to SIG_DFL when execuring LocalCommand;
     ok markus@

20110106
 - (djm) OpenBSD CVS Sync
   - markus@cvs.openbsd.org 2010/12/08 22:46:03
     [scp.1 scp.c]
     add a new -3 option to scp: Copies between two remote hosts are
     transferred through the local host.  Without this option the data
     is copied directly between the two remote hosts. ok djm@ (bugzilla #1837)
   - jmc@cvs.openbsd.org 2010/12/09 14:13:33
     [scp.1 scp.c]
     scp.1: grammer fix
     scp.c: add -3 to usage()
   - markus@cvs.openbsd.org 2010/12/14 11:59:06
     [sshconnect.c]
     don't mention key type in key-changed-warning, since we also print
     this warning if a new key type appears. ok djm@
   - djm@cvs.openbsd.org 2010/12/15 00:49:27
     [readpass.c]
     fix ControlMaster=ask regression
     reset SIGCHLD handler before fork (and restore it after) so we don't miss
     the the askpass child's exit status. Correct test for exit status/signal to
     account for waitpid() failure; with claudio@ ok claudio@ markus@
   - djm@cvs.openbsd.org 2010/12/24 21:41:48
     [auth-options.c]
     don't send the actual forced command in a debug message; ok markus deraadt
   - otto@cvs.openbsd.org 2011/01/04 20:44:13
     [ssh-keyscan.c]
     handle ecdsa-sha2 with various key lengths; hint and ok djm@

20110104
 - (djm) [configure.ac Makefile.in] Use mandoc as preferred manpage
   formatter if it is present, followed by nroff and groff respectively.
   Fixes distprep target on OpenBSD (which has bumped groff/nroff to ports
   in favour of mandoc). feedback and ok tim

20110103
 - (djm) [Makefile.in] revert local hack I didn't intend to commit

20110102
 - (djm) [loginrec.c] Fix some fd leaks on error paths. ok dtucker
 - (djm) [configure.ac] Check whether libdes is needed when building
   with Heimdal krb5 support. On OpenBSD this library no longer exists,
   so linking it unconditionally causes a build failure; ok dtucker

20101226
 - (dtucker) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/12/08 04:02:47
     [ssh_config.5 sshd_config.5]
     explain that IPQoS arguments are separated by whitespace; iirc requested
     by jmc@ a while back

20101205
 - (dtucker) openbsd-compat/openssl-compat.c] remove sleep leftover from
   debugging.  Spotted by djm.
 - (dtucker) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/12/03 23:49:26
     [schnorr.c]
     check that g^x^q === 1 mod p; recommended by JPAKE author Feng Hao
     (this code is still disabled, but apprently people are treating it as
     a reference implementation)
   - djm@cvs.openbsd.org 2010/12/03 23:55:27
     [auth-rsa.c]
     move check for revoked keys to run earlier (in auth_rsa_key_allowed)
     bz#1829; patch from ldv AT altlinux.org; ok markus@
   - djm@cvs.openbsd.org 2010/12/04 00:18:01
     [sftp-server.c sftp.1 sftp-client.h sftp.c PROTOCOL sftp-client.c]
     add a protocol extension to support a hard link operation. It is
     available through the "ln" command in the client. The old "ln"
     behaviour of creating a symlink is available using its "-s" option
     or through the preexisting "symlink" command; based on a patch from
     miklos AT szeredi.hu in bz#1555; ok markus@
   - djm@cvs.openbsd.org 2010/12/04 13:31:37
     [hostfile.c]
     fix fd leak; spotted and ok dtucker
   - djm@cvs.openbsd.org 2010/12/04 00:21:19
     [regress/sftp-cmds.sh]
     adjust for hard-link support
 - (dtucker) [regress/Makefile] Id sync.

20101204
 - (djm) [openbsd-compat/bindresvport.c] Use arc4random_uniform(range)
   instead of (arc4random() % range)
 - (dtucker) [configure.ac moduli.c openbsd-compat/openssl-compat.{c,h}]  Add
   shims for the new, non-deprecated OpenSSL key generation functions for
   platforms that don't have the new interfaces.

20101201
 - OpenBSD CVS Sync
   - deraadt@cvs.openbsd.org 2010/11/20 05:12:38
     [auth2-pubkey.c]
     clean up cases of ;;
   - djm@cvs.openbsd.org 2010/11/21 01:01:13
     [clientloop.c misc.c misc.h ssh-agent.1 ssh-agent.c]
     honour $TMPDIR for client xauth and ssh-agent temporary directories;
     feedback and ok markus@
   - djm@cvs.openbsd.org 2010/11/21 10:57:07
     [authfile.c]
     Refactor internals of private key loading and saving to work on memory
     buffers rather than directly on files. This will make a few things
     easier to do in the future; ok markus@
   - djm@cvs.openbsd.org 2010/11/23 02:35:50
     [auth.c]
     use strict_modes already passed as function argument over referencing
     global options.strict_modes
   - djm@cvs.openbsd.org 2010/11/23 23:57:24
     [clientloop.c]
     avoid NULL deref on receiving a channel request on an unknown or invalid
     channel; report bz#1842 from jchadima AT redhat.com; ok dtucker@
   - djm@cvs.openbsd.org 2010/11/24 01:24:14
     [channels.c]
     remove a debug() that pollutes stderr on client connecting to a server
     in debug mode (channel_close_fds is called transitively from the session
     code post-fork); bz#1719, ok dtucker
   - djm@cvs.openbsd.org 2010/11/25 04:10:09
     [session.c]
     replace close() loop for fds 3->64 with closefrom();
     ok markus deraadt dtucker
   - djm@cvs.openbsd.org 2010/11/26 05:52:49
     [scp.c]
     Pass through ssh command-line flags and options when doing remote-remote
     transfers, e.g. to enable agent forwarding which is particularly useful
     in this case; bz#1837 ok dtucker@
   - markus@cvs.openbsd.org 2010/11/29 18:57:04
     [authfile.c]
     correctly load comment for encrypted rsa1 keys;
     report/fix Joachim Schipper; ok djm@
   - djm@cvs.openbsd.org 2010/11/29 23:45:51
     [auth.c hostfile.c hostfile.h ssh.c ssh_config.5 sshconnect.c]
     [sshconnect.h sshconnect2.c]
     automatically order the hostkeys requested by the client based on
     which hostkeys are already recorded in known_hosts. This avoids
     hostkey warnings when connecting to servers with new ECDSA keys
     that are preferred by default; with markus@

20101124
 - (dtucker) [platform.c session.c] Move the getluid call out of session.c and
   into the platform-specific code  Only affects SCO, tested by and ok tim@.
 - (djm) [loginrec.c] Relax permission requirement on btmp logs to allow
   group read/write. ok dtucker@
 - (dtucker) [packet.c] Remove redundant local declaration of "int tos".
 - (djm) [defines.h] Add IP DSCP defines

20101122
 - (dtucker) Bug #1840: fix warning when configuring --with-ssl-engine, patch
   from vapier at gentoo org.

20101120
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/11/05 02:46:47
     [packet.c]
     whitespace KNF
   - djm@cvs.openbsd.org 2010/11/10 01:33:07
     [kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c moduli.c]
     use only libcrypto APIs that are retained with OPENSSL_NO_DEPRECATED.
     these have been around for years by this time. ok markus
   - djm@cvs.openbsd.org 2010/11/13 23:27:51
     [clientloop.c misc.c misc.h packet.c packet.h readconf.c readconf.h]
     [servconf.c servconf.h session.c ssh.c ssh_config.5 sshd_config.5]
     allow ssh and sshd to set arbitrary TOS/DSCP/QoS values instead of
     hardcoding lowdelay/throughput.
     
     bz#1733 patch from philipp AT redfish-solutions.com; ok markus@ deraadt@
   - jmc@cvs.openbsd.org 2010/11/15 07:40:14
     [ssh_config.5]
     libary -> library;
   - jmc@cvs.openbsd.org 2010/11/18 15:01:00
     [scp.1 sftp.1 ssh.1 sshd_config.5]
     add IPQoS to the various -o lists, and zap some trailing whitespace;

20101111
 - (djm) [servconf.c ssh-add.c ssh-keygen.c] don't look for ECDSA keys on
   platforms that don't support ECC. Fixes some spurious warnings reported
   by tim@

20101109
 - (tim) [regress/kextype.sh] Not all platforms have time in /usr/bin.
   Feedback from dtucker@
 - (tim) [configure.ac openbsd-compat/bsd-misc.h openbsd-compat/bsd-misc.c] Add
   support for platforms missing isblank(). ok djm@

20101108
 - (tim) [regress/Makefile] Fixes to allow building/testing outside source
   tree.
 - (tim) [regress/kextype.sh] Shell portability fix.

20101107
 - (dtucker) [platform.c] includes.h instead of defines.h so that we get
   the correct typedefs.

20101105
 - (djm) [loginrec.c loginrec.h] Use correct uid_t/pid_t types instead of
   int. Should fix bz#1817 cleanly; ok dtucker@
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/09/22 12:26:05
     [regress/Makefile regress/kextype.sh]
     regress test for each of the key exchange algorithms that we support
   - djm@cvs.openbsd.org 2010/10/28 11:22:09
     [authfile.c key.c key.h ssh-keygen.c]
     fix a possible NULL deref on loading a corrupt ECDH key
     
     store ECDH group information in private keys files as "named groups"
     rather than as a set of explicit group parameters (by setting
     the OPENSSL_EC_NAMED_CURVE flag). This makes for shorter key files and
     retrieves the group's OpenSSL NID that we need for various things.
   - jmc@cvs.openbsd.org 2010/10/28 18:33:28
     [scp.1 ssh-add.1 ssh-keygen.1 ssh.1 ssh_config.5 sshd.8 sshd_config.5]
     knock out some "-*- nroff -*-" lines;
   - djm@cvs.openbsd.org 2010/11/04 02:45:34
     [sftp-server.c]
     umask should be parsed as octal. reported by candland AT xmission.com;
     ok markus@
 - (dtucker) [configure.ac platform.{c,h} session.c
   openbsd-compat/port-solaris.{c,h}] Bug #1824: Add Solaris Project support.
   Patch from cory.erickson at csu mnscu edu with a bit of rework from me.
   ok djm@
 - (dtucker) [platform.c platform.h session.c] Add a platform hook to run
   after the user's groups are established and move the selinux calls into it.
 - (dtucker) [platform.c session.c] Move the AIX setpcred+chroot hack into
   platform.c
 - (dtucker) [platform.c session.c] Move the BSDI setpgrp into platform.c.
 - (dtucker) [platform.c] Only call setpgrp on BSDI if running as root to
   retain previous behavior.
 - (dtucker) [platform.c session.c] Move the PAM credential establishment for
   the LOGIN_CAP case into platform.c.
 - (dtucker) platform.c session.c] Move the USE_LIBIAF fragment into
   platform.c
 - (dtucker) [platform.c session.c] Move aix_usrinfo frament into platform.c.
 - (dtucker) [platform.c session.c] Move irix setusercontext fragment into
   platform.c.
 - (dtucker) [platform.c session.c] Move PAM credential establishment for the
   non-LOGIN_CAP case into platform.c.
 - (dtucker) [platform.c platform.h session.c] Move the Cygwin special-case
   check into platform.c
 - (dtucker) [regress/keytype.sh] Import new test.
 - (dtucker) [Makefile configure.ac regress/Makefile regress/keytype.sh]
   Import recent changes to regress/Makefile, pass a flag to enable ECC tests
   from configure through to regress/Makefile and use it in the tests.
 - (dtucker) [regress/kextype.sh] Add missing "test".
 - (dtucker) [regress/kextype.sh] Make sha256 test depend on ECC.  This is not
   strictly correct since while ECC requires sha256 the reverse is not true
   however it does prevent spurious test failures.
 - (dtucker) [platform.c] Need servconf.h and extern options.

20101025
 - (tim) [openbsd-compat/glob.h] Remove sys/cdefs.h include that came with
   1.12 to unbreak Solaris build.
   ok djm@
 - (dtucker) [defines.h] Use SIZE_T_MAX for SIZE_MAX for platforms that have a
   native one.

20101024
 - (dtucker) [includes.h] Add missing ifdef GLOB_HAS_GL_STATV to fix build.
 - (dtucker) [regress/cert-hostkey.sh] Disable ECC-based tests on platforms
   which don't have ECC support in libcrypto.
 - (dtucker) [regress/cert-userkey.sh] Disable ECC-based tests on platforms
   which don't have ECC support in libcrypto.
 - (dtucker) [defines.h] Add SIZE_MAX for the benefit of platforms that don't
   have it.
 - (dtucker) OpenBSD CVS Sync
   - sthen@cvs.openbsd.org 2010/10/23 22:06:12
     [sftp.c]
     escape '[' in filename tab-completion; fix a type while there.
     ok djm@

20101021
 - OpenBSD CVS Sync
   - dtucker@cvs.openbsd.org 2010/10/12 02:22:24
     [mux.c]
     Typo in confirmation message.  bz#1827, patch from imorgan at
     nas nasa gov
   - djm@cvs.openbsd.org 2010/08/31 12:24:09
     [regress/cert-hostkey.sh regress/cert-userkey.sh]
     tests for ECDSA certificates

20101011
 - (djm) [canohost.c] Zero a4 instead of addr to better match type.
   bz#1825, reported by foo AT mailinator.com
 - (djm) [sshconnect.c] Need signal.h for prototype for kill(2)

20101011
 - (djm) [configure.ac] Use = instead of == in shell tests. Patch from
   dr AT vasco.com

20101007
 - (djm) [ssh-agent.c] Fix type for curve name.
 - (djm) OpenBSD CVS Sync
   - matthew@cvs.openbsd.org 2010/09/24 13:33:00
     [misc.c misc.h configure.ac openbsd-compat/openbsd-compat.h]
     [openbsd-compat/timingsafe_bcmp.c]
     Add timingsafe_bcmp(3) to libc, mention that it's already in the
     kernel in kern(9), and remove it from OpenSSH.
     ok deraadt@, djm@
     NB. re-added under openbsd-compat/ for portable OpenSSH
   - djm@cvs.openbsd.org 2010/09/25 09:30:16
     [sftp.c configure.ac openbsd-compat/glob.c openbsd-compat/glob.h]
     make use of new glob(3) GLOB_KEEPSTAT extension to save extra server
     rountrips to fetch per-file stat(2) information.
     NB. update openbsd-compat/ glob(3) implementation from OpenBSD libc to
     match.
   - djm@cvs.openbsd.org 2010/09/26 22:26:33
     [sftp.c]
     when performing an "ls" in columnated (short) mode, only call
     ioctl(TIOCGWINSZ) once to get the window width instead of per-
     filename
   - djm@cvs.openbsd.org 2010/09/30 11:04:51
     [servconf.c]
     prevent free() of string in .rodata when overriding AuthorizedKeys in
     a Match block; patch from rein AT basefarm.no
   - djm@cvs.openbsd.org 2010/10/01 23:05:32
     [cipher-3des1.c cipher-bf1.c cipher-ctr.c openbsd-compat/openssl-compat.h]
     adapt to API changes in openssl-1.0.0a
     NB. contains compat code to select correct API for older OpenSSL
   - djm@cvs.openbsd.org 2010/10/05 05:13:18
     [sftp.c sshconnect.c]
     use default shell /bin/sh if $SHELL is ""; ok markus@
   - djm@cvs.openbsd.org 2010/10/06 06:39:28
     [clientloop.c ssh.c sshconnect.c sshconnect.h]
     kill proxy command on fatal() (we already kill it on clean exit);
     ok markus@
   - djm@cvs.openbsd.org 2010/10/06 21:10:21
     [sshconnect.c]
     swapped args to kill(2)
 - (djm) [openbsd-compat/glob.c] restore ARG_MAX compat code.
 - (djm) [cipher-acss.c] Add missing header.
 - (djm) [openbsd-compat/Makefile.in] Actually link timingsafe_bcmp

20100924
 - (djm) OpenBSD CVS Sync
   - naddy@cvs.openbsd.org 2010/09/10 15:19:29
     [ssh-keygen.1]
     * mention ECDSA in more places
     * less repetition in FILES section
     * SSHv1 keys are still encrypted with 3DES
     help and ok jmc@
   - djm@cvs.openbsd.org 2010/09/11 21:44:20
     [ssh.1]
     mention RFC 5656 for ECC stuff
   - jmc@cvs.openbsd.org 2010/09/19 21:30:05
     [sftp.1]
     more wacky macro fixing;
   - djm@cvs.openbsd.org 2010/09/20 04:41:47
     [ssh.c]
     install a SIGCHLD handler to reap expiried child process; ok markus@
   - djm@cvs.openbsd.org 2010/09/20 04:50:53
     [jpake.c schnorr.c]
     check that received values are smaller than the group size in the
     disabled and unfinished J-PAKE code.
     avoids catastrophic security failure found by Sebastien Martini
   - djm@cvs.openbsd.org 2010/09/20 04:54:07
     [jpake.c]
     missing #include
   - djm@cvs.openbsd.org 2010/09/20 07:19:27
     [mux.c]
     "atomically" create the listening mux socket by binding it on a temorary
     name and then linking it into position after listen() has succeeded.
     this allows the mux clients to determine that the server socket is
     either ready or stale without races. stale server sockets are now
     automatically removed
     ok deraadt
   - djm@cvs.openbsd.org 2010/09/22 05:01:30
     [kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c readconf.c readconf.h]
     [servconf.c servconf.h ssh_config.5 sshconnect2.c sshd.c sshd_config.5]
     add a KexAlgorithms knob to the client and server configuration to allow
     selection of which key exchange methods are used by ssh(1) and sshd(8)
     and their order of preference.
     ok markus@
   - jmc@cvs.openbsd.org 2010/09/22 08:30:08
     [ssh.1 ssh_config.5]
     ssh.1: add kexalgorithms to the -o list
     ssh_config.5: format the kexalgorithms in a more consistent
     (prettier!) way
     ok djm
   - djm@cvs.openbsd.org 2010/09/22 22:58:51
     [atomicio.c atomicio.h misc.c misc.h scp.c sftp-client.c]
     [sftp-client.h sftp.1 sftp.c]
     add an option per-read/write callback to atomicio

     factor out bandwidth limiting code from scp(1) into a generic bandwidth
     limiter that can be attached using the atomicio callback mechanism

     add a bandwidth limit option to sftp(1) using the above
     "very nice" markus@
   - jmc@cvs.openbsd.org 2010/09/23 13:34:43
     [sftp.c]
     add [-l limit] to usage();
   - jmc@cvs.openbsd.org 2010/09/23 13:36:46
     [scp.1 sftp.1]
     add KexAlgorithms to the -o list;

20100910
 - (dtucker) [openbsd-compat/port-linux.c] Check is_selinux_enabled for exact
   return code since it can apparently return -1 under some conditions.  From
   openssh bugs werbittewas de, ok djm@
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/08/31 12:33:38
     [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c]
     reintroduce commit from tedu@, which I pulled out for release
     engineering:
       OpenSSL_add_all_algorithms is the name of the function we have a
       man page for, so use that.  ok djm
   - jmc@cvs.openbsd.org 2010/08/31 17:40:54
     [ssh-agent.1]
     fix some macro abuse;
   - jmc@cvs.openbsd.org 2010/08/31 21:14:58
     [ssh.1]
     small text tweak to accommodate previous;
   - naddy@cvs.openbsd.org 2010/09/01 15:21:35
     [servconf.c]
     pick up ECDSA host key by default; ok djm@
   - markus@cvs.openbsd.org 2010/09/02 16:07:25
     [ssh-keygen.c]
     permit -b 256, 384 or 521 as key size for ECDSA; ok djm@
   - markus@cvs.openbsd.org 2010/09/02 16:08:39
     [ssh.c]
     unbreak ControlPersist=yes for ControlMaster=yes; ok djm@
   - naddy@cvs.openbsd.org 2010/09/02 17:21:50
     [ssh-keygen.c]
     Switch ECDSA default key size to 256 bits, which according to RFC5656
     should still be better than our current RSA-2048 default.
     ok djm@, markus@
   - jmc@cvs.openbsd.org 2010/09/03 11:09:29
     [scp.1]
     add an EXIT STATUS section for /usr/bin;
   - jmc@cvs.openbsd.org 2010/09/04 09:38:34
     [ssh-add.1 ssh.1]
     two more EXIT STATUS sections;
   - naddy@cvs.openbsd.org 2010/09/06 17:10:19
     [sshd_config]
     add ssh_host_ecdsa_key to /etc; from Mattieu Baptiste
     <mattieu.b@gmail.com>
     ok deraadt@
   - djm@cvs.openbsd.org 2010/09/08 03:54:36
     [authfile.c]
     typo
   - deraadt@cvs.openbsd.org 2010/09/08 04:13:31
     [compress.c]
     work around name-space collisions some buggy compilers (looking at you
     gcc, at least in earlier versions, but this does not forgive your current
     transgressions) seen between zlib and openssl
     ok djm
   - djm@cvs.openbsd.org 2010/09/09 10:45:45
     [kex.c kex.h kexecdh.c key.c key.h monitor.c ssh-ecdsa.c]
     ECDH/ECDSA compliance fix: these methods vary the hash function they use
     (SHA256/384/512) depending on the length of the curve in use. The previous
     code incorrectly used SHA256 in all cases.
     
     This fix will cause authentication failure when using 384 or 521-bit curve
     keys if one peer hasn't been upgraded and the other has. (256-bit curve
     keys work ok). In particular you may need to specify HostkeyAlgorithms
     when connecting to a server that has not been upgraded from an upgraded
     client.
     
     ok naddy@
 - (djm) [authfd.c authfile.c bufec.c buffer.h configure.ac kex.h kexecdh.c]
   [kexecdhc.c kexecdhs.c key.c key.h myproposal.h packet.c readconf.c]
   [ssh-agent.c ssh-ecdsa.c ssh-keygen.c ssh.c] Disable ECDH and ECDSA on
   platforms that don't have the requisite OpenSSL support. ok dtucker@
 - (dtucker) [kex.h key.c packet.h ssh-agent.c ssh.c] A few more ECC ifdefs
   for missing headers and compiler warnings.

20100831
 - OpenBSD CVS Sync
   - jmc@cvs.openbsd.org 2010/08/08 19:36:30
     [ssh-keysign.8 ssh.1 sshd.8]
     use the same template for all FILES sections; i.e. -compact/.Pp where we
     have multiple items, and .Pa for path names;
   - tedu@cvs.openbsd.org 2010/08/12 23:34:39
     [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c]
     OpenSSL_add_all_algorithms is the name of the function we have a man page
     for, so use that.  ok djm
   - djm@cvs.openbsd.org 2010/08/16 04:06:06
     [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c]
     backout previous temporarily; discussed with deraadt@
   - djm@cvs.openbsd.org 2010/08/31 09:58:37
     [auth-options.c auth1.c auth2.c bufaux.c buffer.h kex.c key.c packet.c]
     [packet.h ssh-dss.c ssh-rsa.c]
     Add buffer_get_cstring() and related functions that verify that the
     string extracted from the buffer contains no embedded \0 characters*
     This prevents random (possibly malicious) crap from being appended to
     strings where it would not be noticed if the string is used with
     a string(3) function.
     
     Use the new API in a few sensitive places.
     
     * actually, we allow a single one at the end of the string for now because
     we don't know how many deployed implementations get this wrong, but don't
     count on this to remain indefinitely.
   - djm@cvs.openbsd.org 2010/08/31 11:54:45
     [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@
 - (djm) [Makefile.in] Add new ECC files
 - (djm) [bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c] include
   includes.h

20100827
 - (dtucker) [contrib/redhat/sshd.init] Bug #1810: initlog is deprecated,
   remove.  Patch from martynas at venck us 

20100823
 - (djm) Release OpenSSH-5.6p1

20100816
 - (dtucker) [configure.ac openbsd-compat/Makefile.in
   openbsd-compat/openbsd-compat.h openbsd-compat/strptime.c] Add strptime to
   the compat library which helps on platforms like old IRIX.  Based on work
   by djm, tested by Tom Christensen.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/08/12 21:49:44
     [ssh.c]
     close any extra file descriptors inherited from parent at start and
     reopen stdin/stdout to /dev/null when forking for ControlPersist.
     
     prevents tools that fork and run a captive ssh for communication from
     failing to exit when the ssh completes while they wait for these fds to
     close. The inherited fds may persist arbitrarily long if a background
     mux master has been started by ControlPersist. cvs and scp were effected
     by this.
     
     "please commit" markus@
 - (djm) [regress/README.regress] typo

20100812
 - (tim) [regress/login-timeout.sh regress/reconfigure.sh regress/reexec.sh
   regress/test-exec.sh] Under certain conditions when testing with sudo
   tests would fail because the pidfile could not be read by a regular user.
   "cat: cannot open ...../regress/pidfile: Permission denied (error 13)"
   Make sure cat is run by $SUDO.  no objection from me. djm@
 - (tim) [auth.c] add cast to quiet compiler. Change only affects SVR5 systems.

20100809
 - (djm) bz#1561: don't bother setting IFF_UP on tun(4) device if it is
   already set. Makes FreeBSD user openable tunnels useful; patch from
   richard.burakowski+ossh AT mrburak.net, ok dtucker@
 - (dtucker) bug #1530: strip trailing ":" from hostname in ssh-copy-id.
   based in part on a patch from Colin Watson, ok djm@

20100809
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/08/08 16:26:42
     [version.h]
     crank to 5.6
 - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec]
   [contrib/suse/openssh.spec] Crank version numbers

20100805
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/08/04 05:37:01
     [ssh.1 ssh_config.5 sshd.8]
     Remove mentions of weird "addr/port" alternate address format for IPv6
     addresses combinations. It hasn't worked for ages and we have supported
     the more commen "[addr]:port" format for a long time. ok jmc@ markus@
   - djm@cvs.openbsd.org 2010/08/04 05:40:39
     [PROTOCOL.certkeys ssh-keygen.c]
     tighten the rules for certificate encoding by requiring that options
     appear in lexical order and make our ssh-keygen comply. ok markus@
   - djm@cvs.openbsd.org 2010/08/04 05:42:47
     [auth.c auth2-hostbased.c authfile.c authfile.h ssh-keysign.8]
     [ssh-keysign.c ssh.c]
     enable certificates for hostbased authentication, from Iain Morgan;
     "looks ok" markus@
   - djm@cvs.openbsd.org 2010/08/04 05:49:22
     [authfile.c]
     commited the wrong version of the hostbased certificate diff; this
     version replaces some strlc{py,at} verbosity with xasprintf() at
     the request of markus@
   - djm@cvs.openbsd.org 2010/08/04 06:07:11
     [ssh-keygen.1 ssh-keygen.c]
     Support CA keys in PKCS#11 tokens; feedback and ok markus@
   - djm@cvs.openbsd.org 2010/08/04 06:08:40
     [ssh-keysign.c]
     clean for -Wuninitialized (Id sync only; portable had this change)
   - djm@cvs.openbsd.org 2010/08/05 13:08:42
     [channels.c]
     Fix a trio of bugs in the local/remote window calculation for datagram
     data channels (i.e. TunnelForward):
     
     Calculate local_consumed correctly in channel_handle_wfd() by measuring
     the delta to buffer_len(c->output) from when we start to when we finish.
     The proximal problem here is that the output_filter we use in portable
     modified the length of the dequeued datagram (to futz with the headers
     for !OpenBSD).
     
     In channel_output_poll(), don't enqueue datagrams that won't fit in the
     peer's advertised packet size (highly unlikely to ever occur) or which
     won't fit in the peer's remaining window (more likely).
     
     In channel_input_data(), account for the 4-byte string header in
     datagram packets that we accept from the peer and enqueue in c->output.
     
     report, analysis and testing 2/3 cases from wierbows AT us.ibm.com;
     "looks good" markus@

20100803
 - (dtucker) [monitor.c] Bug #1795: Initialize the values to be returned from
   PAM to sane values in case the PAM method doesn't write to them.  Spotted by
   Bitman Zhou, ok djm@.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/07/16 04:45:30
     [ssh-keygen.c]
     avoid bogus compiler warning
   - djm@cvs.openbsd.org 2010/07/16 14:07:35
     [ssh-rsa.c]
     more timing paranoia - compare all parts of the expected decrypted
     data before returning. AFAIK not exploitable in the SSH protocol.
     "groovy" deraadt@
   - djm@cvs.openbsd.org 2010/07/19 03:16:33
     [sftp-client.c]
     bz#1797: fix swapped args in upload_dir_internal(), breaking recursive
     upload depth checks and causing verbose printing of transfers to always
     be turned on; patch from imorgan AT nas.nasa.gov
   - djm@cvs.openbsd.org 2010/07/19 09:15:12
     [clientloop.c readconf.c readconf.h ssh.c ssh_config.5]
     add a "ControlPersist" option that automatically starts a background
     ssh(1) multiplex master when connecting. This connection can stay alive
     indefinitely, or can be set to automatically close after a user-specified
     duration of inactivity. bz#1330 - patch by dwmw2 AT infradead.org, but
     further hacked on by wmertens AT cisco.com, apb AT cequrux.com,
     martin-mindrot-bugzilla AT earth.li and myself; "looks ok" markus@
   - djm@cvs.openbsd.org 2010/07/21 02:10:58
     [misc.c]
     sync timingsafe_bcmp() with the one dempsky@ committed to sys/lib/libkern
   - dtucker@cvs.openbsd.org 2010/07/23 08:49:25
     [ssh.1]
     Ciphers is documented in ssh_config(5) these days

20100819
 - (dtucker) [contrib/ssh-copy-ud.1] Bug #1786: update ssh-copy-id.1 with more
   details about its behaviour WRT existing directories.  Patch from
   asguthrie at gmail com, ok djm.

20100716
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/07/02 04:32:44
     [misc.c]
     unbreak strdelim() skipping past quoted strings, e.g.
     AllowUsers "blah blah" blah
     was broken; report and fix in bz#1757 from bitman.zhou AT centrify.com
     ok dtucker;
   - djm@cvs.openbsd.org 2010/07/12 22:38:52
     [ssh.c]
     Make ExitOnForwardFailure work with fork-after-authentication ("ssh -f")
     for protocol 2. ok markus@
   - djm@cvs.openbsd.org 2010/07/12 22:41:13
     [ssh.c ssh_config.5]
     expand %h to the hostname in ssh_config Hostname options. While this
     sounds useless, it is actually handy for working with unqualified
     hostnames:
     
     Host *.*
        Hostname %h
     Host *
        Hostname %h.example.org
     
     "I like it" markus@
   - djm@cvs.openbsd.org 2010/07/13 11:52:06
     [auth-rsa.c channels.c jpake.c key.c misc.c misc.h monitor.c]
     [packet.c ssh-rsa.c]
     implement a timing_safe_cmp() function to compare memory without leaking
     timing information by short-circuiting like memcmp() and use it for
     some of the more sensitive comparisons (though nothing high-value was
     readily attackable anyway); "looks ok" markus@
   - djm@cvs.openbsd.org 2010/07/13 23:13:16
     [auth-rsa.c channels.c jpake.c key.c misc.c misc.h monitor.c packet.c]
     [ssh-rsa.c]
     s/timing_safe_cmp/timingsafe_bcmp/g
   - jmc@cvs.openbsd.org 2010/07/14 17:06:58
     [ssh.1]
     finally ssh synopsis looks nice again! this commit just removes a ton of
     hacks we had in place to make it work with old groff;
   - schwarze@cvs.openbsd.org 2010/07/15 21:20:38
     [ssh-keygen.1]
     repair incorrect block nesting, which screwed up indentation;
     problem reported and fix OK by jmc@

20100714
 - (tim) [contrib/redhat/openssh.spec] Bug 1796: Test for skip_x11_askpass
   (line 77) should have been for no_x11_askpass. 

20100702
 - (djm) OpenBSD CVS Sync
   - jmc@cvs.openbsd.org 2010/06/26 00:57:07
     [ssh_config.5]
     tweak previous;
   - djm@cvs.openbsd.org 2010/06/26 23:04:04
     [ssh.c]
     oops, forgot to #include <canohost.h>; spotted and patch from chl@
   - djm@cvs.openbsd.org 2010/06/29 23:15:30
     [ssh-keygen.1 ssh-keygen.c]
     allow import (-i) and export (-e) of PEM and PKCS#8 encoded keys;
     bz#1749; ok markus@
   - djm@cvs.openbsd.org 2010/06/29 23:16:46
     [auth2-pubkey.c sshd_config.5]
     allow key options (command="..." and friends) in AuthorizedPrincipals;
     ok markus@
   - jmc@cvs.openbsd.org 2010/06/30 07:24:25
     [ssh-keygen.1]
     tweak previous;
   - jmc@cvs.openbsd.org 2010/06/30 07:26:03
     [ssh-keygen.c]
     sort usage();
   - jmc@cvs.openbsd.org 2010/06/30 07:28:34
     [sshd_config.5]
     tweak previous;
   - millert@cvs.openbsd.org 2010/07/01 13:06:59
     [scp.c]
     Fix a longstanding problem where if you suspend scp at the
     password/passphrase prompt the terminal mode is not restored.
     OK djm@
   - phessler@cvs.openbsd.org 2010/06/27 19:19:56
     [regress/Makefile]
     fix how we run the tests so we can successfully use SUDO='sudo -E'
     in our env
   - djm@cvs.openbsd.org 2010/06/29 23:59:54
     [cert-userkey.sh]
     regress tests for key options in AuthorizedPrincipals

20100627
 - (tim) [openbsd-compat/port-uw.c] Reorder includes. auth-options.h now needs
   key.h.

20100626
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/05/21 05:00:36
     [misc.c]
     colon() returns char*, so s/return (0)/return NULL/
   - markus@cvs.openbsd.org 2010/06/08 21:32:19
     [ssh-pkcs11.c]
     check length of value returned  C_GetAttributValue for != 0
     from mdrtbugzilla@codefive.co.uk; bugzilla #1773; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/17 07:07:30
     [mux.c]
     Correct sizing of object to be allocated by calloc(), replacing
     sizeof(state) with sizeof(*state). This worked by accident since
     the struct contained a single int at present, but could have broken
     in the future. patch from hyc AT symas.com
   - djm@cvs.openbsd.org 2010/06/18 00:58:39
     [sftp.c]
     unbreak ls in working directories that contains globbing characters in
     their pathnames. bz#1655 reported by vgiffin AT apple.com
   - djm@cvs.openbsd.org 2010/06/18 03:16:03
     [session.c]
     Missing check for chroot_director == "none" (we already checked against
     NULL); bz#1564 from Jan.Pechanec AT Sun.COM
   - djm@cvs.openbsd.org 2010/06/18 04:43:08
     [sftp-client.c]
     fix memory leak in do_realpath() error path; bz#1771, patch from
     anicka AT suse.cz
   - djm@cvs.openbsd.org 2010/06/22 04:22:59
     [servconf.c sshd_config.5]
     expose some more sshd_config options inside Match blocks:
       AuthorizedKeysFile AuthorizedPrincipalsFile
       HostbasedUsesNameFromPacketOnly PermitTunnel
     bz#1764; feedback from imorgan AT nas.nasa.gov; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/22 04:32:06
     [ssh-keygen.c]
     standardise error messages when attempting to open private key
     files to include "progname: filename: error reason"
     bz#1783; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/22 04:49:47
     [auth.c]
     queue auth debug messages for bad ownership or permissions on the user's
     keyfiles. These messages will be sent after the user has successfully
     authenticated (where our client will display them with LogLevel=debug).
     bz#1554; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/22 04:54:30
     [ssh-keyscan.c]
     replace verbose and overflow-prone Linebuf code with read_keyfile_line()
     based on patch from joachim AT joachimschipper.nl; bz#1565; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/22 04:59:12
     [session.c]
     include the user name on "subsystem request for ..." log messages;
     bz#1571; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/23 02:59:02
     [ssh-keygen.c]
     fix printing of extensions in v01 certificates that I broke in r1.190
   - djm@cvs.openbsd.org 2010/06/25 07:14:46
     [channels.c mux.c readconf.c readconf.h ssh.h]
     bz#1327: remove hardcoded limit of 100 permitopen clauses and port
     forwards per direction; ok markus@ stevesk@
   - djm@cvs.openbsd.org 2010/06/25 07:20:04
     [channels.c session.c]
     bz#1750: fix requirement for /dev/null inside ChrootDirectory for
     internal-sftp accidentally introduced in r1.253 by removing the code
     that opens and dup /dev/null to stderr and modifying the channels code
     to read stderr but discard it instead; ok markus@
   - djm@cvs.openbsd.org 2010/06/25 08:46:17
     [auth1.c auth2-none.c]
     skip the initial check for access with an empty password when
     PermitEmptyPasswords=no; bz#1638; ok markus@
   - djm@cvs.openbsd.org 2010/06/25 23:10:30
     [ssh.c]
     log the hostname and address that we connected to at LogLevel=verbose
     after authentication is successful to mitigate "phishing" attacks by
     servers with trusted keys that accept authentication silently and
     automatically before presenting fake password/passphrase prompts;
     "nice!" markus@
   - djm@cvs.openbsd.org 2010/06/25 23:10:30
     [ssh.c]
     log the hostname and address that we connected to at LogLevel=verbose
     after authentication is successful to mitigate "phishing" attacks by
     servers with trusted keys that accept authentication silently and
     automatically before presenting fake password/passphrase prompts;
     "nice!" markus@

20100622
 - (djm) [loginrec.c] crank LINFO_NAMESIZE (username length) to 512
   bz#1579; ok dtucker

20100618
 - (djm) [contrib/ssh-copy-id] Update key file explicitly under ~
   rather than assuming that $CWD == $HOME. bz#1500, patch from
   timothy AT gelter.com

20100617
 - (tim) [contrib/cygwin/README] Remove a reference to the obsolete
   minires-devel package, and to add the reference to the libedit-devel
   package since CYgwin now provides libedit. Patch from Corinna Vinschen.

20100521
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/05/07 11:31:26
     [regress/Makefile regress/cert-userkey.sh]
     regress tests for AuthorizedPrincipalsFile and "principals=" key option.
     feedback and ok markus@
   - djm@cvs.openbsd.org 2010/05/11 02:58:04
     [auth-rsa.c]
     don't accept certificates marked as "cert-authority" here; ok markus@
   - djm@cvs.openbsd.org 2010/05/14 00:47:22
     [ssh-add.c]
     check that the certificate matches the corresponding private key before
     grafting it on
   - djm@cvs.openbsd.org 2010/05/14 23:29:23
     [channels.c channels.h mux.c ssh.c]
     Pause the mux channel while waiting for reply from aynch callbacks.
     Prevents misordering of replies if new requests arrive while waiting.
     
     Extend channel open confirm callback to allow signalling failure
     conditions as well as success. Use this to 1) fix a memory leak, 2)
     start using the above pause mechanism and 3) delay sending a success/
     failure message on mux slave session open until we receive a reply from
     the server.
     
     motivated by and with feedback from markus@
   - markus@cvs.openbsd.org 2010/05/16 12:55:51
     [PROTOCOL.mux clientloop.h mux.c readconf.c readconf.h ssh.1 ssh.c]
     mux support for remote forwarding with dynamic port allocation,
     use with
        LPORT=`ssh -S muxsocket -R0:localhost:25 -O forward somehost`
     feedback and ok djm@
   - djm@cvs.openbsd.org 2010/05/20 11:25:26
     [auth2-pubkey.c]
     fix logspam when key options (from="..." especially) deny non-matching
     keys; reported by henning@ also bz#1765; ok markus@ dtucker@
   - djm@cvs.openbsd.org 2010/05/20 23:46:02
     [PROTOCOL.certkeys auth-options.c ssh-keygen.c]
     Move the permit-* options to the non-critical "extensions" field for v01
     certificates. The logic is that if another implementation fails to
     implement them then the connection just loses features rather than fails
     outright.
     
     ok markus@

20100511
 - (dtucker) [Makefile.in] Bug #1770: Link libopenbsd-compat twice to solve
   circular dependency problem on old or odd platforms.  From Tom Lane, ok
   djm@.
 - (djm) [openbsd-compat/openssl-compat.h] Fix build breakage on older
   libcrypto by defining OPENSSL_[DR]SA_MAX_MODULUS_BITS if they aren't
   already. ok dtucker@

20100510
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/04/23 01:47:41
     [ssh-keygen.c]
     bz#1740: display a more helpful error message when $HOME is
     inaccessible while trying to create .ssh directory. Based on patch
     from jchadima AT redhat.com; ok dtucker@
   - djm@cvs.openbsd.org 2010/04/23 22:27:38
     [mux.c]
     set "detach_close" flag when registering channel cleanup callbacks.
     This causes the channel to close normally when its fds close and
     hangs when terminating a mux slave using ~. bz#1758; ok markus@
   - djm@cvs.openbsd.org 2010/04/23 22:42:05
     [session.c]
     set stderr to /dev/null for subsystems rather than just closing it.
     avoids hangs if a subsystem or shell initialisation writes to stderr.
     bz#1750; ok markus@
   - djm@cvs.openbsd.org 2010/04/23 22:48:31
     [ssh-keygen.c]
     refuse to generate keys longer than OPENSSL_[RD]SA_MAX_MODULUS_BITS,
     since we would refuse to use them anyway. bz#1516; ok dtucker@
   - djm@cvs.openbsd.org 2010/04/26 22:28:24
     [sshconnect2.c]
     bz#1502: authctxt.success is declared as an int, but passed by
     reference to function that accepts sig_atomic_t*. Convert it to
     the latter; ok markus@ dtucker@
   - djm@cvs.openbsd.org 2010/05/01 02:50:50
     [PROTOCOL.certkeys]
     typo; jmeltzer@
   - dtucker@cvs.openbsd.org 2010/05/05 04:22:09
     [sftp.c]
     restore mput and mget which got lost in the tab-completion changes.
     found by Kenneth Whitaker, ok djm@
   - djm@cvs.openbsd.org 2010/05/07 11:30:30
     [auth-options.c auth-options.h auth.c auth.h auth2-pubkey.c]
     [key.c servconf.c servconf.h sshd.8 sshd_config.5]
     add some optional indirection to matching of principal names listed
     in certificates. Currently, a certificate must include the a user's name
     to be accepted for authentication. This change adds the ability to
     specify a list of certificate principal names that are acceptable.
     
     When authenticating using a CA trusted through ~/.ssh/authorized_keys,
     this adds a new principals="name1[,name2,...]" key option.
     
     For CAs listed through sshd_config's TrustedCAKeys option, a new config
     option "AuthorizedPrincipalsFile" specifies a per-user file containing
     the list of acceptable names.
     
     If either option is absent, the current behaviour of requiring the
     username to appear in principals continues to apply.
     
     These options are useful for role accounts, disjoint account namespaces
     and "user@realm"-style naming policies in certificates.
     
     feedback and ok markus@
   - jmc@cvs.openbsd.org 2010/05/07 12:49:17
     [sshd_config.5]
     tweak previous;

20100423
 - (dtucker) [configure.ac] Bug #1756: Check for the existence of a lib64 dir
   in the openssl install directory (some newer openssl versions do this on at
   least some amd64 platforms).

20100418
 - OpenBSD CVS Sync
   - jmc@cvs.openbsd.org 2010/04/16 06:45:01
     [ssh_config.5]
     tweak previous; ok djm
   - jmc@cvs.openbsd.org 2010/04/16 06:47:04
     [ssh-keygen.1 ssh-keygen.c]
     tweak previous; ok djm
   - djm@cvs.openbsd.org 2010/04/16 21:14:27
     [sshconnect.c]
     oops, %r => remote username, not %u
   - djm@cvs.openbsd.org 2010/04/16 01:58:45
     [regress/cert-hostkey.sh regress/cert-userkey.sh]
     regression tests for v01 certificate format
     includes interop tests for v00 certs
 - (dtucker) [contrib/aix/buildbff.sh] Fix creation of ssh_prng_cmds.default
   file.

20100416
 - (djm) Release openssh-5.5p1
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/03/26 03:13:17
     [bufaux.c]
     allow buffer_get_int_ret/buffer_get_int64_ret to take a NULL pointer
     argument to allow skipping past values in a buffer
   - jmc@cvs.openbsd.org 2010/03/26 06:54:36
     [ssh.1]
     tweak previous;
   - jmc@cvs.openbsd.org 2010/03/27 14:26:55
     [ssh_config.5]
     tweak previous; ok dtucker
   - djm@cvs.openbsd.org 2010/04/10 00:00:16
     [ssh.c]
     bz#1746 - suppress spurious tty warning when using -O and stdin
     is not a tty; ok dtucker@ markus@
   - djm@cvs.openbsd.org 2010/04/10 00:04:30
     [sshconnect.c]
     fix terminology: we didn't find a certificate in known_hosts, we found
     a CA key
   - djm@cvs.openbsd.org 2010/04/10 02:08:44
     [clientloop.c]
     bz#1698: kill channel when pty allocation requests fail. Fixed
     stuck client if the server refuses pty allocation.
     ok dtucker@ "think so" markus@
   - djm@cvs.openbsd.org 2010/04/10 02:10:56
     [sshconnect2.c]
     show the key type that we are offering in debug(), helps distinguish
     between certs and plain keys as the path to the private key is usually
     the same.
   - djm@cvs.openbsd.org 2010/04/10 05:48:16
     [mux.c]
     fix NULL dereference; from matthew.haub AT alumni.adelaide.edu.au
   - djm@cvs.openbsd.org 2010/04/14 22:27:42
     [ssh_config.5 sshconnect.c]
     expand %r => remote username in ssh_config:ProxyCommand;
     ok deraadt markus
   - markus@cvs.openbsd.org 2010/04/15 20:32:55
     [ssh-pkcs11.c]
     retry lookup for private key if there's no matching key with CKA_SIGN
     attribute enabled; this fixes fixes MuscleCard support (bugzilla #1736)
     ok djm@
   - djm@cvs.openbsd.org 2010/04/16 01:47:26
     [PROTOCOL.certkeys auth-options.c auth-options.h auth-rsa.c]
     [auth2-pubkey.c authfd.c key.c key.h myproposal.h ssh-add.c]
     [ssh-agent.c ssh-dss.c ssh-keygen.1 ssh-keygen.c ssh-rsa.c]
     [sshconnect.c sshconnect2.c sshd.c]
     revised certificate format ssh-{dss,rsa}-cert-v01@openssh.com with the
     following changes:
     
     move the nonce field to the beginning of the certificate where it can
     better protect against chosen-prefix attacks on the signature hash
     
     Rename "constraints" field to "critical options"
     
     Add a new non-critical "extensions" field
     
     Add a serial number
     
     The older format is still support for authentication and cert generation
     (use "ssh-keygen -t v00 -s ca_key ..." to generate a v00 certificate)
     
     ok markus@