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* upstream: mark const string array contents const too, i.e. staticdjm@openbsd.org2022-02-021-3/+7
| | | | | | const char *array => static const char * const array from Mike Frysinger OpenBSD-Commit-ID: a664e31ea6a795d7c81153274a5f47b22bdc9bc1
* upstream: restore blocking status on stdio fds before closedjm@openbsd.org2021-05-191-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | ssh(1) needs to set file descriptors to non-blocking mode to operate but it was not restoring the original state on exit. This could cause problems with fds shared with other programs via the shell, e.g. > $ cat > test.sh << _EOF > #!/bin/sh > { > ssh -Fnone -oLogLevel=verbose ::1 hostname > cat /usr/share/dict/words > } | sleep 10 > _EOF > $ ./test.sh > Authenticated to ::1 ([::1]:22). > Transferred: sent 2352, received 2928 bytes, in 0.1 seconds > Bytes per second: sent 44338.9, received 55197.4 > cat: stdout: Resource temporarily unavailable This restores the blocking status for fds 0,1,2 (stdio) before ssh(1) abandons/closes them. This was reported as bz3280 and GHPR246; ok dtucker@ OpenBSD-Commit-ID: 8cc67346f05aa85a598bddf2383fcfcc3aae61ce
* upstream: remove global variable used to stash compat flags and use thedjm@openbsd.org2021-01-271-3/+3
| | | | | | purpose-built ssh->compat variable instead; feedback/ok markus@ OpenBSD-Commit-ID: 7c4f200e112dae6bcf99f5bae1a5629288378a06
* upstream: use the new variant log macros instead of prependingdjm@openbsd.org2020-10-181-35/+28
| | | | | | __func__ and appending ssh_err(r) manually; ok markus@ OpenBSD-Commit-ID: 1f14b80bcfa85414b2a1a6ff714fb5362687ace8
* upstream: When system calls indicate an error they return -1, notderaadt@openbsd.org2019-07-051-3/+3
| | | | | | | | some arbitrary value < 0. errno is only updated in this case. Change all (most?) callers of syscalls to follow this better, and let's see if this strictness helps us in the future. OpenBSD-Commit-ID: 48081f00db7518e3b712a49dca06efc2a5428075
* upstream: when the peer sends a channel-close message, make sure wedjm@openbsd.org2018-10-041-1/+23
| | | | | | | | | | | close the local extended read fd (stderr) along with the regular read fd (stdout). Avoids weird stuck processed in multiplexing mode. Report and analysis by Nelson Elhage and Geoffrey Thomas in bz#2863 ok dtucker@ markus@ OpenBSD-Commit-ID: a48a2467fe938de4de69d2e7193d5fa701f12ae9
* upstream: include a little more information about the status anddjm@openbsd.org2018-10-041-21/+31
| | | | | | | disposition of channel's extended (stderr) fd; makes debugging some things a bit easier. No behaviour change. OpenBSD-Commit-ID: 483eb6467dc7d5dbca8eb109c453e7a43075f7ce
* upstream commitdjm@openbsd.org2017-09-121-1/+9
| | | | | | | | | | | | | | | Make remote channel ID a u_int Previously we tracked the remote channel IDs in an int, but this is strictly incorrect: the wire protocol uses uint32 and there is nothing in-principle stopping a SSH implementation from sending, say, 0xffff0000. In practice everyone numbers their channels sequentially, so this has never been a problem. ok markus@ Upstream-ID: b9f4cd3dc53155b4a5c995c0adba7da760d03e73
* upstream commitdjm@openbsd.org2017-09-121-52/+62
| | | | | | | | | | | | | | | | | | | | | | refactor channels.c Move static state to a "struct ssh_channels" that is allocated at runtime and tracked as a member of struct ssh. Explicitly pass "struct ssh" to all channels functions. Replace use of the legacy packet APIs in channels.c. Rework sshd_config PermitOpen handling: previously the configuration parser would call directly into the channels layer. After the refactor this is not possible, as the channels structures are allocated at connection time and aren't available when the configuration is parsed. The server config parser now tracks PermitOpen itself and explicitly configures the channels code later. ok markus@ Upstream-ID: 11828f161656b965cc306576422613614bea2d8f
* upstream commitdjm@openbsd.org2017-05-011-2/+1
| | | | | | | | obliterate ssh1.h and some dead code that used it ok markus@ Upstream-ID: 1ca9159a9fb95618f9d51e069ac8e1131a087343
* upstream commitdjm@openbsd.org2017-05-011-200/+66
| | | | | | | | remove compat20/compat13/compat15 variables ok markus@ Upstream-ID: 43802c035ceb3fef6c50c400e4ecabf12354691c
* - djm@cvs.openbsd.org 2010/01/26 01:28:35Damien Miller2010-01-261-6/+15
| | | | | | | | | | | | | | | | | | | | | | | | | [channels.c channels.h clientloop.c clientloop.h mux.c nchan.c ssh.c] rewrite ssh(1) multiplexing code to a more sensible protocol. The new multiplexing code uses channels for the listener and accepted control sockets to make the mux master non-blocking, so no stalls when processing messages from a slave. avoid use of fatal() in mux master protocol parsing so an errant slave process cannot take down a running master. implement requesting of port-forwards over multiplexed sessions. Any port forwards requested by the slave are added to those the master has established. add support for stdio forwarding ("ssh -W host:port ...") in mux slaves. document master/slave mux protocol so that other tools can use it to control a running ssh(1). Note: there are no guarantees that this protocol won't be incompatibly changed (though it is versioned). feedback Salvador Fandino, dtucker@ channel changes ok markus@
* - stevesk@cvs.openbsd.org 2008/11/07 18:50:18Darren Tucker2008-11-111-5/+5
| | | | | [nchan.c] add space to some log/debug messages for readability; ok djm@ markus@
* - markus@cvs.openbsd.org 2008/09/11 14:22:37Damien Miller2008-11-031-1/+3
| | | | | | [compat.c compat.h nchan.c ssh.c] only send eow and no-more-sessions requests to openssh 5 and newer; fixes interop problems with broken ssh v2 implementations; ok djm@
* - djm@cvs.openbsd.org 2008/06/30 12:16:02Darren Tucker2008-07-021-2/+3
| | | | | [nchan.c] only send eow@openssh.com notifications for session channels; ok! markus@
* - markus@cvs.openbsd.org 2008/05/09 16:21:13Damien Miller2008-05-191-1/+29
| | | | | | | | | [channels.h clientloop.c nchan.c serverloop.c] unbreak ssh -2 localhost od /bin/ls | true ignoring SIGPIPE by adding a new channel message (EOW) that signals the peer that we're not interested in any data it might send. fixes bz #85; discussion, debugging and ok djm@
* - djm@cvs.openbsd.org 2008/05/08 12:02:23Damien Miller2008-05-191-1/+2
| | | | | | | | | | | | | | | [auth-options.c auth1.c channels.c channels.h clientloop.c gss-serv.c] [monitor.c monitor_wrap.c nchan.c servconf.c serverloop.c session.c] [ssh.c sshd.c] Implement a channel success/failure status confirmation callback mechanism. Each channel maintains a queue of callbacks, which will be drained in order (RFC4253 guarantees confirm messages are not reordered within an channel). Also includes a abandonment callback to clean up if a channel is closed without sending confirmation messages. This probably shouldn't happen in compliant implementations, but it could be abused to leak memory. ok markus@ (as part of a larger diff)
* - deraadt@cvs.openbsd.org 2006/08/03 03:34:42Damien Miller2006-08-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [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")
* - stevesk@cvs.openbsd.org 2006/07/22 20:48:23Damien Miller2006-07-241-1/+2
| | | | | | | | | | | | | | | | | [atomicio.c auth-options.c auth-passwd.c auth-rhosts.c auth-rsa.c] [auth.c auth1.c auth2-chall.c auth2-hostbased.c auth2-passwd.c auth2.c] [authfd.c authfile.c bufaux.c bufbn.c buffer.c canohost.c channels.c] [cipher-3des1.c cipher-bf1.c cipher-ctr.c cipher.c clientloop.c] [compat.c deattack.c dh.c dns.c gss-genr.c gss-serv.c hostfile.c] [includes.h kex.c kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c log.c] [mac.c match.c md-sha256.c misc.c moduli.c monitor.c monitor_fdpass.c] [monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c rsa.c] [progressmeter.c readconf.c readpass.c scp.c servconf.c serverloop.c] [session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c sftp.c] [ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c] [ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c sshconnect2.c] [sshd.c sshlogin.c sshpty.c ttymodes.c uidswap.c xmalloc.c] move #include <string.h> out of includes.h
* - stevesk@cvs.openbsd.org 2006/07/11 20:07:25Darren Tucker2006-07-121-1/+3
| | | | | | | | | [scp.c auth.c monitor.c serverloop.c sftp-server.c sshpty.c readpass.c sshd.c monitor_wrap.c monitor_fdpass.c ssh-agent.c ttymodes.c atomicio.c includes.h session.c sshlogin.c monitor_mm.c packet.c sshconnect2.c sftp-client.c nchan.c clientloop.c sftp.c misc.c canohost.c channels.c ssh-keygen.c progressmeter.c uidswap.c msg.c readconf.c sshconnect.c] move #include <errno.h> out of includes.h; ok markus@
* - stevesk@cvs.openbsd.org 2006/07/08 21:47:12Damien Miller2006-07-101-1/+4
| | | | | | | [authfd.c canohost.c clientloop.c dns.c dns.h includes.h] [monitor_fdpass.c nchan.c packet.c servconf.c sftp.c ssh-agent.c] [ssh-keyscan.c ssh.c sshconnect.h sshd.c sshlogin.h] move #include <sys/socket.h> out of includes.h
* - djm@cvs.openbsd.org 2006/03/25 13:17:03Damien Miller2006-03-261-0/+1
| | | | | | | | | | | | | | | | | | | | | [atomicio.c auth-bsdauth.c auth-chall.c auth-options.c auth-passwd.c] [auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth-skey.c auth.c auth1.c] [auth2-chall.c auth2-hostbased.c auth2-kbdint.c auth2-none.c] [auth2-passwd.c auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c] [buffer.c canohost.c channels.c 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 fatal.c groupaccess.c hostfile.c kex.c] [kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c] [mac.c match.c md-sha256.c misc.c monitor.c monitor_fdpass.c] [monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c progressmeter.c] [readconf.c readpass.c rsa.c scard.c scp.c servconf.c serverloop.c] [session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c] [sftp.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c] [ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c] [sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c] [uidswap.c uuencode.c xmalloc.c] Put $OpenBSD$ tags back (as comments) to replace the RCSID()s that Theo nuked - our scripts to sync -portable need them in the files
* - deraadt@cvs.openbsd.org 2006/03/19 18:51:18Damien Miller2006-03-261-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | [atomicio.c auth-bsdauth.c auth-chall.c auth-krb5.c auth-options.c] [auth-pam.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c] [auth-shadow.c auth-skey.c auth.c auth1.c auth2-chall.c] [auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c] [auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c buffer.c] [canohost.c channels.c cipher-3des1.c cipher-acss.c cipher-aes.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 entropy.c fatal.c] [groupaccess.c hostfile.c includes.h kex.c kexdh.c kexdhc.c] [kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c loginrec.c] [loginrec.h logintest.c mac.c match.c md-sha256.c md5crypt.c misc.c] [monitor.c monitor_fdpass.c monitor_mm.c monitor_wrap.c msg.c] [nchan.c packet.c progressmeter.c readconf.c readpass.c rsa.c] [scard.c scp.c servconf.c serverloop.c session.c sftp-client.c] [sftp-common.c sftp-glob.c sftp-server.c sftp.c ssh-add.c] [ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c] [ssh-rand-helper.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c] [sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c] [uidswap.c uuencode.c xmalloc.c openbsd-compat/bsd-arc4random.c] [openbsd-compat/bsd-closefrom.c openbsd-compat/bsd-cygwin_util.c] [openbsd-compat/bsd-getpeereid.c openbsd-compat/bsd-misc.c] [openbsd-compat/bsd-nextstep.c openbsd-compat/bsd-snprintf.c] [openbsd-compat/bsd-waitpid.c openbsd-compat/fake-rfc2553.c] RCSID() can die
* - deraadt@cvs.openbsd.org 2004/07/11 17:48:47Darren Tucker2004-07-171-8/+8
| | | | | | | | [channels.c cipher.c clientloop.c clientloop.h compat.h moduli.c readconf.c nchan.c pathnames.h progressmeter.c readconf.h servconf.c session.c sftp-client.c sftp.c ssh-agent.1 ssh-keygen.c ssh.c ssh1.h sshd.c ttymodes.h] spaces
* - avsm@cvs.openbsd.org 2004/06/21 17:36:31Darren Tucker2004-06-221-3/+3
| | | | | | | | | | | | | [auth-rsa.c auth2-gss.c auth2-pubkey.c authfile.c canohost.c channels.c cipher.c dns.c kex.c monitor.c monitor_fdpass.c monitor_wrap.c monitor_wrap.h nchan.c packet.c progressmeter.c scp.c sftp-server.c sftp.c ssh-gss.h ssh-keygen.c ssh.c sshconnect.c sshconnect1.c sshlogin.c sshpty.c] make ssh -Wshadow clean, no functional changes markus@ ok There are also some portable-specific -Wshadow warnings to be fixed in monitor.c and montior_wrap.c.
* - markus@cvs.openbsd.org 2003/08/29 10:04:36Damien Miller2003-09-021-23/+23
| | | | | [channels.c nchan.c] be less chatty; debug -> debug2, cleanup; ok henning@
* - (djm) RCSID sync w/ OpenBSDDamien Miller2003-05-141-1/+1
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* *** empty log message ***Damien Miller2003-04-091-2/+2
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* - deraadt@cvs.openbsd.org 2002/06/19 00:27:55Ben Lindstrom2002-06-211-2/+2
| | | | | | | | | [auth-bsdauth.c auth-skey.c auth1.c auth2-chall.c auth2-none.c authfd.c authfd.h monitor_wrap.c msg.c nchan.c radix.c readconf.c scp.c sftp.1 ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c ssh-keysign.c ssh.1 sshconnect.c sshconnect.h sshconnect2.c ttymodes.c xmalloc.h] KNF done automatically while reading....
* - (bal) RCSID tag updates on channels.c, clientloop.c, nchan.c,Ben Lindstrom2002-06-091-1/+1
| | | | | sftp-client.c, ssh-agenet.c, ssh-keygen.c and connect.h (we did unexpand independant of them)
* unexpandBen Lindstrom2002-06-091-2/+2
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* - markus@cvs.openbsd.org 2002/03/25 21:13:51Ben Lindstrom2002-03-261-33/+27
| | | | | | [channels.c channels.h compat.c compat.h nchan.c] don't send stderr data after EOF, accept this from older known (broken) sshd servers only, fixes http://bugzilla.mindrot.org/show_bug.cgi?id=179
* - markus@cvs.openbsd.org 2002/01/21 23:27:10Damien Miller2002-01-221-1/+4
| | | | | [channels.c nchan.c] cleanup channels faster if the are empty and we are in drain-state; ok deraadt@
* - markus@cvs.openbsd.org 2002/01/14 13:57:03Damien Miller2002-01-221-2/+2
| | | | | [channels.h nchan.c] (c) 2002
* - markus@cvs.openbsd.org 2002/01/14 13:55:55Damien Miller2002-01-221-56/+32
| | | | | [channels.c channels.h nchan.c] remove function pointers for events, remove chan_init*; ok provos@
* - markus@cvs.openbsd.org 2002/01/14 13:41:13Damien Miller2002-01-221-4/+1
| | | | | [nchan.c] remove duplicated code; ok provos@
* - markus@cvs.openbsd.org 2002/01/14 13:40:10Damien Miller2002-01-221-6/+7
| | | | | [nchan.c] correct fn names for ssh2, do not switch from closed to closed; ok provos@
* - markus@cvs.openbsd.org 2002/01/14 13:34:07Damien Miller2002-01-221-37/+13
| | | | | [nchan.c] merge chan_[io]buf_empty[12]; ok provos@
* - markus@cvs.openbsd.org 2002/01/14 13:22:35Damien Miller2002-01-221-2/+4
| | | | | [nchan.c] chan_send_oclose1() no longer calls chan_shutdown_write(); ok provos@
* - markus@cvs.openbsd.org 2002/01/13 21:31:20Damien Miller2002-01-221-40/+43
| | | | | | [channels.h nchan.c] add chan_set_[io]state(), order states, state is now an u_int, simplifies debugging messages; ok provos@
* - markus@cvs.openbsd.org 2002/01/10 12:47:59Damien Miller2002-01-221-24/+1
| | | | | [nchan.c] more unused code (with channels.c:1.156)
* - markus@cvs.openbsd.org 2002/01/10 12:38:26Damien Miller2002-01-221-7/+1
| | | | | [nchan.c] remove dead code (skip drain)
* - markus@cvs.openbsd.org 2002/01/09 17:26:35Damien Miller2002-01-221-3/+3
| | | | | [channels.c nchan.c] replace buffer_consume(b, buffer_len(b)) with buffer_clear(b); ok provos@
* - deraadt@cvs.openbsd.org 2001/12/19 07:18:56Damien Miller2001-12-211-5/+5
| | | | | | | | | | | | [auth1.c auth2.c auth2-chall.c auth-bsdauth.c auth.c authfile.c auth.h] [auth-krb4.c auth-rhosts.c auth-skey.c bufaux.c canohost.c channels.c] [cipher.c clientloop.c compat.c compress.c deattack.c key.c log.c mac.c] [match.c misc.c nchan.c packet.c readconf.c rijndael.c rijndael.h scard.c] [servconf.c servconf.h serverloop.c session.c sftp.c sftp-client.c] [sftp-glob.c sftp-int.c sftp-server.c ssh-add.c ssh-agent.c ssh.c] [sshconnect1.c sshconnect2.c sshconnect.c sshd.8 sshd.c sshd_config] [ssh-keygen.c sshlogin.c sshpty.c sshtty.c ttymodes.c uidswap.c] basic KNF done while i was looking for something else
* - (djm) OpenBSD CVS SyncDamien Miller2001-10-121-3/+12
| | | | | | | | | | - markus@cvs.openbsd.org 2001/10/10 22:18:47 [channels.c channels.h clientloop.c nchan.c serverloop.c] [session.c session.h] try to keep channels open until an exit-status message is sent. don't kill the login shells if the shells stdin/out/err is closed. this should now work: ssh -2n localhost 'exec > /dev/null 2>&1; sleep 10; exit 5'; echo ?
* whitespace syncKevin Steves2001-09-201-2/+2
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* - (stevesk) nchan.c: we use X/Open Sockets on HP-UX now so shutdown(2)Kevin Steves2001-09-181-2/+2
| | | | | returns ENOTCONN vs. EINVAL for socket not connected; remove EINVAL check. ok Lutz Jaenicke
* - markus@cvs.openbsd.org 2001/07/17 21:04:58Ben Lindstrom2001-07-181-5/+3
| | | | | | [channels.c channels.h clientloop.c nchan.c serverloop.c] keep track of both maxfd and the size of the malloc'ed fdsets. update maxfd if maxfd gets closed.
* - markus@cvs.openbsd.org 2001/06/25 08:25:41Ben Lindstrom2001-07-041-2/+2
| | | | | | | [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
* - itojun@cvs.openbsd.org 2001/06/23 15:12:20Ben Lindstrom2001-06-251-7/+7
| | | | | | | | | | | | | [auth1.c auth2.c auth2-chall.c authfd.c authfile.c auth-rhosts.c canohost.c channels.c cipher.c clientloop.c deattack.c dh.c hostfile.c kex.c kexdh.c kexgex.c key.c nchan.c packet.c radix.c readpass.c scp.c servconf.c serverloop.c session.c sftp.c sftp-client.c sftp-glob.c sftp-int.c sftp-server.c ssh-add.c ssh-agent.c ssh.c sshconnect1.c sshconnect2.c sshconnect.c sshd.c ssh-keygen.c ssh-keyscan.c] more strict prototypes. raise warning level in Makefile.inc. markus ok'ed TODO; cleanup headers
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