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Simon Tatham e230751853 Remove FLAG_STDERR completely.
Originally, it controlled whether ssh.c should send terminal messages
(such as login and password prompts) to terminal.c or to stderr. But
we've had the from_backend() abstraction for ages now, which even has
an existing flag to indicate that the data is stderr rather than
stdout data; applications which set FLAG_STDERR are precisely those
that link against uxcons or wincons, so from_backend will do the
expected thing anyway with data sent to it with that flag set. So
there's no reason ssh.c can't just unconditionally pass everything
through that, and remove the special case.

FLAG_STDERR was also used by winproxy and uxproxy to decide whether to
capture standard error from a local proxy command, or whether to let
the proxy command send its diagnostics directly to the usual standard
error. On reflection, I think it's better to unconditionally capture
the proxy's stderr, for three reasons. Firstly, it means proxy
diagnostics are prefixed with 'proxy:' so that you can tell them apart
from any other stderr spew (which used to be particularly confusing if
both the main application and the proxy command were instances of
Plink); secondly, proxy diagnostics are now reliably copied to packet
log files along with all the other Event Log entries, even by
command-line tools; and thirdly, this means the option to suppress
proxy command diagnostics after the main session starts will actually
_work_ in the command-line tools, which it previously couldn't.

A more minor structure change is that copying of Event Log messages to
stderr in verbose mode is now done by wincons/uxcons, instead of
centrally in logging.c (since logging.c can now no longer check
FLAG_STDERR to decide whether to do it). The total amount of code to
do this is considerably smaller than the defensive-sounding comment in
logevent.c explaining why I did it the other way instead :-)
2018-09-21 16:46:03 +01:00
charset Fix a collection of type / format string mismatches. 2017-06-20 07:05:39 +01:00
contrib gdb.py: add a 'memdump' command. 2018-06-09 14:20:33 +01:00
doc GPG key rollover. 2018-08-25 14:38:47 +01:00
icons Make an OS X icon for pterm as well as PuTTY. 2016-03-23 22:02:46 +00:00
testdata Support ESC[38;2;R;G;Bm for 24-bit true colour. 2017-09-30 18:19:44 +01:00
unix Remove FLAG_STDERR completely. 2018-09-21 16:46:03 +01:00
windows Remove FLAG_STDERR completely. 2018-09-21 16:46:03 +01:00
.gitignore Remove Makefile.bor. 2017-09-13 19:26:28 +01:00
agentf.c Put a layer of abstraction in front of struct ssh_channel. 2018-09-19 23:08:27 +01:00
aqsync.c Build outgoing SSH agent requests in a strbuf. 2018-05-25 14:36:16 +01:00
be_all_s.c Turn Backend into a sensible classoid. 2018-09-19 22:10:58 +01:00
be_all.c Turn Backend into a sensible classoid. 2018-09-19 22:10:58 +01:00
be_misc.c Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
be_none.c Turn Backend into a sensible classoid. 2018-09-19 22:10:58 +01:00
be_nos_s.c Turn Backend into a sensible classoid. 2018-09-19 22:10:58 +01:00
be_nossh.c Turn Backend into a sensible classoid. 2018-09-19 22:10:58 +01:00
be_ssh.c Turn Backend into a sensible classoid. 2018-09-19 22:10:58 +01:00
Buildscr Fix platform field in Windows on Arm installers. 2018-08-21 07:17:06 +01:00
Buildscr.cv Rename Makefile.cyg to Makefile.mgw. 2016-04-10 15:10:45 +01:00
callback.c Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
cgtest.c cmdgen: rescue test suite from bit rot. 2016-03-30 08:34:14 +01:00
CHECKLST.txt Rework the release checklist for current practice. 2017-07-03 07:45:40 +01:00
cmdgen.c Make 'LogContext' a typedef visible throughout the code. 2018-09-19 22:10:57 +01:00
cmdline.c Turn Backend into a sensible classoid. 2018-09-19 22:10:58 +01:00
conf.c Rewrite conf deserialisation using BinarySource. 2018-06-02 17:52:48 +01:00
config.c Expose the structure tag 'dlgparam'. 2018-09-19 23:08:07 +01:00
configure.ac Enable -Wpointer-arith in the autoconf build. 2018-05-26 13:37:46 +01:00
cproxy.c Turn SSH-2 MACs into a classoid. 2018-09-19 23:08:07 +01:00
defs.h New abstraction 'ConnectionLayer'. 2018-09-19 23:08:28 +01:00
dialog.c Giant const-correctness patch of doom! 2015-05-15 12:47:44 +01:00
dialog.h Expose the structure tag 'dlgparam'. 2018-09-19 23:08:07 +01:00
errsock.c Modernise the Socket/Plug vtable system. 2018-05-27 15:28:54 +01:00
fuzzterm.c Clean up a 'void *' in a unix.h typedef. 2018-09-19 23:08:07 +01:00
import.c Turn SSH-2 ciphers into a classoid. 2018-09-19 23:08:07 +01:00
int64.c Further correction: on reflection, after examining all the call 2008-09-16 22:56:08 +00:00
int64.h Introduce a centralised unmarshaller, 'BinarySource'. 2018-06-02 17:37:22 +01:00
LATEST.VER Update version number for 0.70 release. 2017-07-04 20:29:54 +01:00
ldisc.c Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
ldisc.h Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
ldiscucs.c Expose the Ldisc structure tag throughout the code. 2018-09-19 22:10:57 +01:00
LICENCE Copyright holders update after GSS kex. 2018-04-26 07:21:29 +01:00
licence.pl Autogenerate licence text in doc subdir from LICENCE. 2015-12-22 13:33:42 +00:00
logging.c Remove FLAG_STDERR completely. 2018-09-21 16:46:03 +01:00
marshal.c Make put_padding() have a consistent argument order. 2018-06-13 19:42:19 +01:00
marshal.h Turn SSH-2 MACs into a classoid. 2018-09-19 23:08:07 +01:00
minibidi.c Fix a collection of type / format string mismatches. 2017-06-20 07:05:39 +01:00
misc.c Rework handling of untrusted terminal data. 2018-09-19 23:08:28 +01:00
misc.h Rework handling of untrusted terminal data. 2018-09-19 23:08:28 +01:00
miscucs.c New centralised helper function dup_mb_to_wc(). 2015-07-27 20:06:02 +01:00
mkauto.sh Move the Unix configure script up to the top level. 2014-02-22 18:01:32 +00:00
mkfiles.pl Makefile.clangcl: permit building for Windows on Arm. 2018-05-31 18:50:15 +01:00
mksrcarc.sh New script to generate OS X icon files. 2015-09-06 10:12:15 +01:00
mkunxarc.sh Turn mkunxarc.sh back into an ordinary sh script. 2014-10-01 20:52:16 +00:00
network.h Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
nocmdline.c Remove unused params from cmdline_get_passwd_input. 2018-05-18 07:22:56 +01:00
nocproxy.c Modernise the Socket/Plug vtable system. 2018-05-27 15:28:54 +01:00
nogss.c Rewrite gprefs() in settings.c so that its input mapping includes 2011-06-25 17:37:31 +00:00
noprint.c A few small changes to make the PuTTY source base more usable as a 2005-12-09 20:04:19 +00:00
noshare.c Fix the prototype of the stub function in noshare.c. 2014-04-22 17:53:50 +00:00
noterm.c Make calling term_nopaste() a cross-platform feature. 2013-08-17 16:06:40 +00:00
notiming.c Two related changes to timing code: 2012-09-18 21:42:48 +00:00
nullplug.c Merge duplicate implementations of the trivial Plug. 2018-05-27 15:45:00 +01:00
pageant.c winpgnt.c: handle arbitrarily large file mappings. 2018-07-09 20:17:13 +01:00
pageant.h Raise AGENT_MAX_MSGLEN to 256Kb. 2018-07-09 20:17:13 +01:00
pgssapi.c Fix a missing } in a GSSAPI-related comment. 2018-04-26 07:11:09 +01:00
pgssapi.h Support GSS key exchange, for Kerberos 5 only. 2018-04-26 07:21:16 +01:00
pinger.c Turn Backend into a sensible classoid. 2018-09-19 22:10:58 +01:00
portfwd.c New abstraction 'ConnectionLayer'. 2018-09-19 23:08:28 +01:00
pproxy.c Fix signature of platform_new_connection. 2015-08-15 13:54:55 +01:00
proxy.c Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
proxy.h Modernise the Socket/Plug vtable system. 2018-05-27 15:28:54 +01:00
pscp.c Remove FLAG_STDERR completely. 2018-09-21 16:46:03 +01:00
psftp.c Remove FLAG_STDERR completely. 2018-09-21 16:46:03 +01:00
psftp.h Log when -restrict-acl is in use. 2017-02-11 00:44:00 +00:00
putty.h Remove FLAG_STDERR completely. 2018-09-21 16:46:03 +01:00
puttymem.h New memory management macro 'snew_plus'. 2018-06-06 07:22:06 +01:00
puttyps.h Delete the old 'macosx' directory completely. 2016-03-25 09:06:03 +00:00
raw.c Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
README Remove Makefile.bor. 2017-09-13 19:26:28 +01:00
Recipe Move low-level functions out into sshcommon.c. 2018-09-19 23:08:28 +01:00
release.pl Add a --no-ftp mode to the release.pl download checks. 2017-07-08 09:27:57 +01:00
resource.h Initial checkin: beta 0.43 1999-01-08 13:02:13 +00:00
rlogin.c Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
sercfg.c Expose the structure tag 'dlgparam'. 2018-09-19 23:08:07 +01:00
sessprep.c Factor out common pre-session-launch preparation. 2017-12-03 14:54:49 +00:00
settings.c Invent structure tags for the storage.h abstractions. 2018-09-19 23:08:07 +01:00
sftp.c Replace sftp_pkt_get* with BinarySource. 2018-06-02 17:43:54 +01:00
sftp.h Replace sftp_pkt_get* with BinarySource. 2018-06-02 17:43:54 +01:00
sign.sh GPG key rollover. 2018-08-25 14:38:47 +01:00
ssh1bpp.c Make ssh_compress into a pair of linked classoids. 2018-09-19 23:08:07 +01:00
ssh1censor.c Move binary packet protocols and censoring out of ssh.c. 2018-06-09 14:41:30 +01:00
ssh2bpp-bare.c New system for tracking data-limit-based rekeys. 2018-09-19 23:08:28 +01:00
ssh2bpp.c New system for tracking data-limit-based rekeys. 2018-09-19 23:08:28 +01:00
ssh2censor.c Move binary packet protocols and censoring out of ssh.c. 2018-06-09 14:41:30 +01:00
ssh.c Remove FLAG_STDERR completely. 2018-09-21 16:46:03 +01:00
ssh.h New system for tracking data-limit-based rekeys. 2018-09-19 23:08:28 +01:00
sshaes.c Remove duplicate typedef of AESContext. 2018-09-20 23:46:45 +01:00
ssharcf.c Turn SSH-2 ciphers into a classoid. 2018-09-19 23:08:07 +01:00
sshbcrypt.c Replace all uses of SHA*_Bytes / MD5Update. 2018-05-25 14:36:16 +01:00
sshblowf.c Turn SSH-2 ciphers into a classoid. 2018-09-19 23:08:07 +01:00
sshblowf.h Turn SSH-2 ciphers into a classoid. 2018-09-19 23:08:07 +01:00
sshbn.c Remove obsolete functions. 2018-06-02 18:24:12 +01:00
sshbn.h Add a case to sshbn.h for 64-bit Visual Studio. 2015-12-16 14:21:09 +00:00
sshbpp.h New system for tracking data-limit-based rekeys. 2018-09-19 23:08:28 +01:00
sshccp.c Turn SSH-2 MACs into a classoid. 2018-09-19 23:08:07 +01:00
sshchan.h Move the zombiechan implementation into sshcommon.c. 2018-09-19 23:08:28 +01:00
sshcommon.c Move ssh{1,2}_pkt_type into sshcommon.c. 2018-09-19 23:08:28 +01:00
sshcr.h Move some ssh.c declarations into header files. 2018-06-09 14:41:30 +01:00
sshcrc.c Fix a 64-bit-cleanness error in sshcrc's generator. 2016-01-26 22:09:01 +00:00
sshcrcda.c Expose the structure tag 'crcda_ctx'. 2018-09-19 23:08:07 +01:00
sshdes.c Fix copy-paste error in sshdes.c. 2018-09-20 17:51:42 +01:00
sshdh.c Expose the 'dh_ctx' struct tag used for Diffie-Hellman. 2018-09-19 23:08:07 +01:00
sshdss.c Reorganise ssh_keyalg and use it as a vtable. 2018-06-03 15:15:51 +01:00
sshdssg.c Reorganise ssh_keyalg and use it as a vtable. 2018-06-03 15:15:51 +01:00
sshecc.c Turn SSH hashes into a classoid. 2018-09-19 23:08:07 +01:00
sshecdsag.c Reorganise ssh_keyalg and use it as a vtable. 2018-06-03 15:15:51 +01:00
sshgss.h Centralise definition of GSSAPI check interval. 2018-05-01 19:02:59 +01:00
sshgssc.c Support GSS key exchange, for Kerberos 5 only. 2018-04-26 07:21:16 +01:00
sshgssc.h Support GSS key exchange, for Kerberos 5 only. 2018-04-26 07:21:16 +01:00
sshmac.c Turn SSH-2 MACs into a classoid. 2018-09-19 23:08:07 +01:00
sshmd5.c Clean up a couple of consts and char pointers. 2018-09-19 23:08:07 +01:00
sshnogss.c Post-release destabilisation! Completely remove the struct type 2011-07-14 18:52:21 +00:00
sshprime.c Generate keys more carefully, so that when the user asks for an n-bit 2012-03-04 00:24:49 +00:00
sshpubk.c New BinarySink function 'put_padding'. 2018-06-09 14:20:33 +01:00
sshrand.c In random_add_noise, put the hashed noise into the pool, not the raw noise 2016-12-29 11:18:03 +00:00
sshrsa.c Turn SSH hashes into a classoid. 2018-09-19 23:08:07 +01:00
sshrsag.c Reorganise ssh_keyalg and use it as a vtable. 2018-06-03 15:15:51 +01:00
sshsh256.c Turn SSH hashes into a classoid. 2018-09-19 23:08:07 +01:00
sshsh512.c Turn SSH hashes into a classoid. 2018-09-19 23:08:07 +01:00
sshsha.c Clean up a couple of consts and char pointers. 2018-09-19 23:08:07 +01:00
sshshare.c New abstraction 'ConnectionLayer'. 2018-09-19 23:08:28 +01:00
sshverstring.c Move version string exchange out into a BPP. 2018-09-19 23:08:28 +01:00
sshzlib.c Make ssh_compress into a pair of linked classoids. 2018-09-19 23:08:07 +01:00
storage.h Invent structure tags for the storage.h abstractions. 2018-09-19 23:08:07 +01:00
telnet.c Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
terminal.c Rework handling of untrusted terminal data. 2018-09-19 23:08:28 +01:00
terminal.h Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
testback.c Introduce a typedef for frontend handles. 2018-09-19 22:10:58 +01:00
testbn.c New utility function logevent_and_free. 2018-09-19 23:08:28 +01:00
time.c Comment explaining location in top-level directory. 2005-02-07 15:23:45 +00:00
timing.c Fix a potential time-wraparound issue in pinger.c. 2016-04-02 07:51:24 +01:00
tree234.c tree234.c: new search234() system. 2018-09-19 23:08:28 +01:00
tree234.h tree234.c: new search234() system. 2018-09-19 23:08:28 +01:00
version.c Show the git commit hash in local dev builds too. 2017-01-21 14:57:31 +00:00
version.h Show the git commit hash in local dev builds too. 2017-01-21 14:57:31 +00:00
wcwidth.c Update wcwidth.c with Unicode 9.0.0 data 2017-07-01 23:25:49 +01:00
wildcard.c Add a missing null pointer check in wc_unescape, to bring it in line 2013-07-14 10:46:17 +00:00
x11fwd.c Put a layer of abstraction in front of struct ssh_channel. 2018-09-19 23:08:27 +01:00

This is the README for the source archive of PuTTY, a free Windows
and Unix Telnet and SSH client.

If you want to rebuild PuTTY from source, we provide a variety of
Makefiles and equivalents. (If you have fetched the source from
Git, you'll have to generate the Makefiles yourself -- see
below.)

There are various compile-time directives that you can use to
disable or modify certain features; it may be necessary to do this
in some environments. They are documented in `Recipe', and in
comments in many of the generated Makefiles.

For building on Windows:

 - windows/Makefile.vc is for command-line builds on MS Visual C++
   systems. Change into the `windows' subdirectory and type `nmake
   -f Makefile.vc' to build all the PuTTY binaries.

   As of 2017, we successfully compile PuTTY with both Visual Studio
   7 (2003) and Visual Studio 14 (2015), so our guess is that it will
   probably build with versions in between those as well.

   (The binaries from Visual Studio 14 are only compatible with
   Windows XP and up. Binaries from Visual Studio 7 ought to work
   with anything from Windows 95 onward.)

 - Inside the windows/MSVC subdirectory are MS Visual Studio project
   files for doing GUI-based builds of the various PuTTY utilities.
   These have been tested on Visual Studio 7 and 10.

   You should be able to build each PuTTY utility by loading the
   corresponding .dsp file in Visual Studio. For example,
   MSVC/putty/putty.dsp builds PuTTY itself, MSVC/plink/plink.dsp
   builds Plink, and so on.

 - windows/Makefile.mgw is for MinGW / Cygwin installations. Type
   `make -f Makefile.mgw' while in the `windows' subdirectory to
   build all the PuTTY binaries.

   MinGW and friends can lag behind other toolchains in their support
   for the Windows API. Compile-time levers are provided to exclude
   some features; the defaults are set appropriately for the
   'mingw-w64' cross-compiler provided with Ubuntu 14.04. If you are
   using an older toolchain, you may need to exclude more features;
   alternatively, you may find that upgrading to a recent version of
   the 'w32api' package helps.

 - windows/Makefile.lcc is for lcc-win32. Type `make -f
   Makefile.lcc' while in the `windows' subdirectory. (You will
   probably need to specify COMPAT=-DNO_MULTIMON.)

 - Inside the windows/DEVCPP subdirectory are Dev-C++ project
   files for doing GUI-based builds of the various PuTTY utilities.

The PuTTY team actively use Makefile.vc (with VC7/10) and Makefile.mgw
(with mingw32), so we'll probably notice problems with those
toolchains fairly quickly. Please report any problems with the other
toolchains mentioned above.

For building on Unix:

 - unix/configure is for Unix and GTK. If you don't have GTK, you
   should still be able to build the command-line utilities (PSCP,
   PSFTP, Plink, PuTTYgen) using this script. To use it, change into
   the `unix' subdirectory, run `./configure' and then `make'. Or you
   can do the same in the top-level directory (we provide a little
   wrapper that invokes configure one level down), which is more like
   a normal Unix source archive but doesn't do so well at keeping the
   per-platform stuff in each platform's subdirectory; it's up to you.

 - unix/Makefile.gtk and unix/Makefile.ux are for non-autoconfigured
   builds. These makefiles expect you to change into the `unix'
   subdirectory, then run `make -f Makefile.gtk' or `make -f
   Makefile.ux' respectively. Makefile.gtk builds all the programs but
   relies on Gtk, whereas Makefile.ux builds only the command-line
   utilities and has no Gtk dependence.

 - For the graphical utilities, any of Gtk+-1.2, Gtk+-2.0, and Gtk+-3.0
   should be supported. If you have more than one installed, you can
   manually specify which one you want by giving the option
   '--with-gtk=N' to the configure script where N is 1, 2, or 3.
   (The default is the newest available, of course.) In the absence
   of any Gtk version, the configure script will automatically
   construct a Makefile which builds only the command-line utilities;
   you can manually create this condition by giving configure the
   option '--without-gtk'.

 - pterm would like to be setuid or setgid, as appropriate, to permit
   it to write records of user logins to /var/run/utmp and
   /var/log/wtmp. (Of course it will not use this privilege for
   anything else, and in particular it will drop all privileges before
   starting up complex subsystems like GTK.) By default the makefile
   will not attempt to add privileges to the pterm executable at 'make
   install' time, but you can ask it to do so by running configure
   with the option '--enable-setuid=USER' or '--enable-setgid=GROUP'.

 - The Unix Makefiles have an `install' target. Note that by default
   it tries to install `man' pages; if you have fetched the source via
   Git then you will need to have built these using Halibut
   first - see below.

 - It's also possible to build the Windows version of PuTTY to run
   on Unix by using Winelib.  To do this, change to the `windows'
   directory and run `make -f Makefile.mgw CC=winegcc RC=wrc'.

All of the Makefiles are generated automatically from the file
`Recipe' by the Perl script `mkfiles.pl' (except for the Unix one,
which is generated by the `configure' script; mkfiles.pl only
generates the input to automake). Additions and corrections to Recipe,
mkfiles.pl and/or configure.ac are much more useful than additions and
corrections to the actual Makefiles, Makefile.am or Makefile.in.

The Unix `configure' script and its various requirements are generated
by the shell script `mkauto.sh', which requires GNU Autoconf, GNU
Automake, and Gtk; if you've got the source from Git rather
than using one of our source snapshots, you'll need to run this
yourself. The input file to Automake is generated by mkfiles.pl along
with all the rest of the makefiles, so you will need to run mkfiles.pl
and then mkauto.sh.

Documentation (in various formats including Windows Help and Unix
`man' pages) is built from the Halibut (`.but') files in the `doc'
subdirectory using `doc/Makefile'. If you aren't using one of our
source snapshots, you'll need to do this yourself. Halibut can be
found at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.

The PuTTY home web site is

    https://www.chiark.greenend.org.uk/~sgtatham/putty/

If you want to send bug reports or feature requests, please read the
Feedback section of the web site before doing so. Sending one-line
reports saying `it doesn't work' will waste your time as much as
ours.

See the file LICENCE for the licence conditions.