mirror of git://git.tartarus.org/simon/putty.git, used for client testing
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Sven Strickroth 674219b115 Use sgrowarray_nm in GetDlgItemText_alloc
GetDlgItemText_alloc is often used to get passwords from text fields,
so the memory should be freed and erased properly. Otherwise parts
of passwords might leak in memory.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
2019-03-21 12:57:09 +00:00
charset Add missing 'static' on file-internal declarations. 2018-11-03 13:45:00 +00:00
contrib Replace all uses of Perl <> with <<>>. 2019-01-25 20:20:37 +00:00
doc Acknowledge Unix pageant. 2019-03-18 23:09:24 +00:00
icons Make an OS X icon for pterm as well as PuTTY. 2016-03-23 22:02:46 +00:00
test Add missing sanity checks in ssh_dss_verify. 2019-02-10 20:10:41 +00:00
unix Re-enable trust sigils on Restart Session. 2019-03-20 15:07:32 +00:00
windows Use sgrowarray_nm in GetDlgItemText_alloc 2019-03-21 12:57:09 +00:00
.gitignore New utility object, StripCtrlChars. 2019-02-20 07:27:22 +00:00
Buildscr Remove all trace of the Inno Setup installer. 2019-03-18 21:53:45 +00:00
Buildscr.cv Rename Makefile.cyg to Makefile.mgw. 2016-04-10 15:10:45 +01:00
CHECKLST.txt Remove all trace of the Inno Setup installer. 2019-03-18 21:53:45 +00:00
LATEST.VER Update version number for 0.71 release. 2019-03-16 12:26:06 +00:00
LICENCE It's a new year. 2019-01-01 15:13:32 +00:00
README Remove Makefile.bor. 2017-09-13 19:26:28 +01:00
Recipe Add line-length limit feature in StripCtrlChars. 2019-03-16 12:25:23 +00:00
agentf.c Make lots of 'int' length fields into size_t. 2019-02-06 21:46:10 +00:00
aqsync.c Build outgoing SSH agent requests in a strbuf. 2018-05-25 14:36:16 +01:00
be_all.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_all_s.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_misc.c log_proxy_stderr: limit the length of Event Log lines. 2019-03-02 06:54:17 +00:00
be_none.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_nos_s.c Label random-noise sources with an enum of ids. 2019-01-23 22:36:17 +00:00
be_nossh.c Label random-noise sources with an enum of ids. 2019-01-23 22:36:17 +00:00
be_ssh.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
callback.c Convert a lot of 'int' variables to 'bool'. 2018-11-03 13:45:00 +00:00
cgtest.c cmdgen: rescue test suite from bit rot. 2016-03-30 08:34:14 +01:00
cmdgen.c Add a 'from_server' flag in prompts_t. 2019-03-16 12:25:23 +00:00
cmdline.c Switch to using poll(2) in place of select(2). 2019-03-16 12:25:23 +00:00
conf.c Convert a lot of 'int' variables to 'bool'. 2018-11-03 13:45:00 +00:00
config.c Remove some redundant variables and assignments. 2018-12-01 17:00:01 +00:00
configure.ac Switch to using poll(2) in place of select(2). 2019-03-16 12:25:23 +00:00
cproxy.c Centralised HMAC implementation. 2019-01-20 17:09:24 +00:00
defs.h Expose term_translate outside terminal.c. 2019-03-06 07:11:41 +00:00
dialog.c New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
dialog.h New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
ecc.c ecc.[ch]: add elliptic-curve point_copy_into functions. 2019-02-09 17:52:25 +00:00
ecc.h ecc.[ch]: add elliptic-curve point_copy_into functions. 2019-02-09 17:52:25 +00:00
errsock.c Improve sk_peer_info. 2018-10-21 10:02:10 +01:00
fuzzterm.c Add a TermWin method to draw a 'trust sigil'. 2019-03-16 12:25:23 +00:00
import.c Change sensitive strbufs/sgrowarrays to the new _nm version. 2019-03-02 06:54:17 +00:00
ldisc.c New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
ldisc.h New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
ldiscucs.c Factor out encode_utf8 from luni_send into utils.c. 2019-03-06 19:05:36 +00:00
licence.pl Autogenerate licence text in doc subdir from LICENCE. 2015-12-22 13:33:42 +00:00
logging.c Replace more ad-hoc growing char buffers with strbuf. 2019-02-28 06:42:37 +00:00
mainchan.c Make lots of 'int' length fields into size_t. 2019-02-06 21:46:10 +00:00
marshal.c Add BinarySink wrappers on existing forms of output. 2019-02-20 07:27:13 +00:00
marshal.h Add BinarySink wrappers on existing forms of output. 2019-02-20 07:27:13 +00:00
memory.c Extra-secure versions of sgrowarray and strbuf. 2019-03-02 06:54:17 +00:00
minibidi.c Add a per-line 'trusted' status in Terminal. 2019-03-16 12:25:23 +00:00
misc.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
misc.h Add line-length limit feature in StripCtrlChars. 2019-03-16 12:25:23 +00:00
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 New utility object, StripCtrlChars. 2019-02-20 07:27:22 +00:00
mksrcarc.sh Remove all trace of the Inno Setup installer. 2019-03-18 21:53:45 +00:00
mkunxarc.sh Turn mkunxarc.sh back into an ordinary sh script. 2014-10-01 20:52:16 +00:00
mpint.c New mpint function mp_get_integer(). 2019-02-26 07:12:57 +00:00
mpint.h New mpint function mp_get_integer(). 2019-02-26 07:12:57 +00:00
mpint_i.h Stop falling back to 16-bit BignumInt on VS Arm builds. 2019-02-10 09:05:47 +00:00
network.h log_proxy_stderr: limit the length of Event Log lines. 2019-03-02 06:54:17 +00:00
nocmdline.c Replace assert(false) with an unreachable() macro. 2019-01-03 08:12:28 +00:00
nocproxy.c Get rid of #ifdef DEFINE_PLUG_METHOD_MACROS. 2018-10-06 07:28:51 +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 Make bufchain_prefix return a ptrlen. 2019-02-06 21:46:10 +00:00
noshare.c Get rid of lots of implicit pointer types. 2018-10-04 19:10:23 +01:00
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 Make lots of 'int' length fields into size_t. 2019-02-06 21:46:10 +00:00
pageant.c Remove duplicate coroutine macros. 2019-02-28 18:05:38 +00:00
pageant.h Remove a lot of pointless 'struct' keywords. 2019-01-04 08:04:39 +00:00
pgssapi.c Fix a missing } in a GSSAPI-related comment. 2018-04-26 07:11:09 +01:00
pgssapi.h Adopt C99 <stdint.h> integer types. 2018-11-03 13:25:50 +00:00
pinger.c Convert a lot of 'int' variables to 'bool'. 2018-11-03 13:45:00 +00:00
portfwd.c Make lots of 'int' length fields into size_t. 2019-02-06 21:46:10 +00:00
pproxy.c Get rid of lots of implicit pointer types. 2018-10-04 19:10:23 +01:00
proxy.c Change sensitive strbufs/sgrowarrays to the new _nm version. 2019-03-02 06:54:17 +00:00
proxy.h Remove ProxySocket's sent_bufsize field. 2019-02-06 21:46:10 +00:00
pscp.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
psftp.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
psftp.h pscp: replace crash with diagnostic on opendir failure. 2018-12-27 16:52:23 +00:00
putty.h Add an interactive anti-spoofing prompt in Plink. 2019-03-16 12:25:23 +00:00
puttymem.h Extra-secure versions of sgrowarray and strbuf. 2019-03-02 06:54:17 +00:00
puttyps.h Delete the old 'macosx' directory completely. 2016-03-25 09:06:03 +00:00
raw.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
release.pl Remove all trace of the Inno Setup installer. 2019-03-18 21:53:45 +00:00
resource.h Initial checkin: beta 0.43 1999-01-08 13:02:13 +00:00
rlogin.c Set trust status appropriately for rlogin. 2019-03-17 13:40:56 +00:00
scpserver.c Make bufchain_prefix return a ptrlen. 2019-02-06 21:46:10 +00:00
sercfg.c Move all extern declarations into header files. 2018-11-03 13:47:29 +00:00
sesschan.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
sessprep.c Factor out common pre-session-launch preparation. 2017-12-03 14:54:49 +00:00
settings.c Reorganise the default cipher preference order. 2019-03-16 12:25:23 +00:00
sftp.c Stop using unqualified {GET,PUT}_32BIT. 2019-02-04 20:32:31 +00:00
sftp.h New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
sftpcommon.c Change sensitive strbufs/sgrowarrays to the new _nm version. 2019-03-02 06:54:17 +00:00
sftpserver.c Adopt C99 <stdbool.h>'s true/false. 2018-11-03 13:45:00 +00:00
sign.sh sign.sh: add Windows on Arm builds to the signing list. 2019-03-20 08:00:03 +00:00
ssh.c Extra inline helpers seat_{stdout,stderr}_pl. 2019-03-09 16:21:49 +00:00
ssh.h New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
ssh1bpp.c Call ssh_check_frozen when BPP consumes input. 2019-02-17 20:30:14 +00:00
ssh1censor.c Add and use BinarySource_*INIT_PL. 2019-02-06 21:46:10 +00:00
ssh1connection-client.c Make lots of 'int' length fields into size_t. 2019-02-06 21:46:10 +00:00
ssh1connection-server.c Make lots of 'int' length fields into size_t. 2019-02-06 21:46:10 +00:00
ssh1connection.c Make bufchain_prefix return a ptrlen. 2019-02-06 21:46:10 +00:00
ssh1connection.h Uppity: expect SSH1_CMSG_EXIT_CONFIRMATION. 2019-01-18 19:14:41 +00:00
ssh1login-server.c Change sensitive strbufs/sgrowarrays to the new _nm version. 2019-03-02 06:54:17 +00:00
ssh1login.c Move sanitisation of k-i prompts into the SSH code. 2019-03-16 12:25:23 +00:00
ssh2bpp-bare.c Call ssh_check_frozen when BPP consumes input. 2019-02-17 20:30:14 +00:00
ssh2bpp.c ssh2bpp: try to report DISCONNECT before connection closure. 2019-03-10 19:27:20 +00:00
ssh2censor.c Add and use BinarySource_*INIT_PL. 2019-02-06 21:46:10 +00:00
ssh2connection-client.c Add an interactive anti-spoofing prompt in Plink. 2019-03-16 12:25:23 +00:00
ssh2connection-server.c Add an interactive anti-spoofing prompt in Plink. 2019-03-16 12:25:23 +00:00
ssh2connection.c Add an interactive anti-spoofing prompt in Plink. 2019-03-16 12:25:23 +00:00
ssh2connection.h Add an interactive anti-spoofing prompt in Plink. 2019-03-16 12:25:23 +00:00
ssh2kex-client.c Add missing dh_validate_f in GSSAPI key exchange. 2019-03-16 12:25:23 +00:00
ssh2kex-server.c Identify hash function implementations in the Event Log. 2019-01-23 22:36:17 +00:00
ssh2transhk.c Fix a few memory leaks. 2019-02-28 06:44:00 +00:00
ssh2transport.c Check the return value from ssh2_transport_filter_queue! 2019-03-10 19:27:20 +00:00
ssh2transport.h Don't ask again about weak crypto primitives on rekey. 2019-02-27 21:10:00 +00:00
ssh2userauth-server.c New marshalling function put_datapl(). 2019-01-03 14:29:06 +00:00
ssh2userauth.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
sshaes.c Give the AES CBC protocol ids back their correct names. 2019-02-04 20:32:31 +00:00
ssharcf.c Merge the ssh1_cipher type into ssh2_cipher. 2019-01-18 19:41:23 +00:00
sshauxcrypt.c Access all hashes and MACs through the standard API. 2019-01-20 17:09:24 +00:00
sshbcrypt.c Access all hashes and MACs through the standard API. 2019-01-20 17:09:24 +00:00
sshblowf.c Merge the ssh1_cipher type into ssh2_cipher. 2019-01-18 19:41:23 +00:00
sshblowf.h Turn SSH-2 ciphers into a classoid. 2018-09-19 23:08:07 +01:00
sshbpp.h Replace method-dispatch #defines with inline functions. 2019-02-27 19:48:14 +00:00
sshccp.c Turn ssh2_mac's text_name field into a method. 2019-01-20 17:09:24 +00:00
sshchan.h Replace method-dispatch #defines with inline functions. 2019-02-27 19:48:14 +00:00
sshcommon.c Extra inline helpers seat_{stdout,stderr}_pl. 2019-03-09 16:21:49 +00:00
sshcr.h Tweak crWaitUntil macros for greater robustness. 2018-09-24 18:50:25 +01:00
sshcrc.c Rewrite CRC implementation to be constant-time. 2019-01-16 06:22:49 +00:00
sshcrcda.c Add tests of the CRC compensation detector. 2019-01-16 06:32:02 +00:00
sshdes.c Put DES diagnostics behind an ifdef of their own. 2019-01-26 14:26:14 +00:00
sshdh.c Replace all 'sizeof(x)/sizeof(*x)' with lenof. 2019-01-04 08:04:39 +00:00
sshdss.c Add missing sanity checks in ssh_dss_verify. 2019-02-10 20:10:41 +00:00
sshdssg.c Rewrite invent_firstbits(). 2019-02-26 07:12:57 +00:00
sshecc.c Fix crash when adding an ECDSA key to Pageant. 2019-03-20 08:00:03 +00:00
sshecdsag.c Complete rewrite of PuTTY's bignum library. 2018-12-31 14:54:59 +00:00
sshgss.h Move most of ssh.c out into separate source files. 2018-09-24 19:45:22 +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
sshhmac.c Change sensitive strbufs/sgrowarrays to the new _nm version. 2019-03-02 06:54:17 +00:00
sshmac.c sshmac.c: remove excessive return statement 2019-01-02 22:50:08 +00:00
sshmd5.c Identify hash function implementations in the Event Log. 2019-01-23 22:36:17 +00:00
sshnogss.c Post-release destabilisation! Completely remove the struct type 2011-07-14 18:52:21 +00:00
sshppl.h Replace method-dispatch #defines with inline functions. 2019-02-27 19:48:14 +00:00
sshprime.c Fix generation of one-bit-short RSA keys. 2019-03-20 11:50:45 +00:00
sshprng.c Windows PuTTYgen: bound entropy input by PRNG state size. 2019-02-10 13:44:50 +00:00
sshpubk.c Sanity-check the 'Public-Lines' field in ppk files. 2019-03-16 12:25:23 +00:00
sshrand.c Windows PuTTYgen: bound entropy input by PRNG state size. 2019-02-10 13:44:50 +00:00
sshrsa.c Change sensitive strbufs/sgrowarrays to the new _nm version. 2019-03-02 06:54:17 +00:00
sshrsag.c Rewrite invent_firstbits(). 2019-02-26 07:12:57 +00:00
sshserver.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
sshserver.h Remove a lot of pointless 'struct' keywords. 2019-01-04 08:04:39 +00:00
sshsh256.c Allow x86 SHA intrinsics on GCC 4.9 too. 2019-02-03 11:48:29 +00:00
sshsh512.c Identify hash function implementations in the Event Log. 2019-01-23 22:36:17 +00:00
sshsha.c Allow x86 SHA intrinsics on GCC 4.9 too. 2019-02-03 11:48:29 +00:00
sshshare.c Change sensitive strbufs/sgrowarrays to the new _nm version. 2019-03-02 06:54:17 +00:00
sshsignals.h New system for handling SSH signals. 2018-10-21 10:02:10 +01:00
sshttymodes.h New system for handling SSH terminal modes. 2018-10-21 10:02:10 +01:00
sshverstring.c Replace more ad-hoc growing char buffers with strbuf. 2019-02-28 06:42:37 +00:00
sshzlib.c Change sensitive strbufs/sgrowarrays to the new _nm version. 2019-03-02 06:54:17 +00:00
storage.h Rework mungestr() and unmungestr(). 2018-11-03 13:45:00 +00:00
stripctrl.c Add line-length limit feature in StripCtrlChars. 2019-03-16 12:25:23 +00:00
telnet.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
terminal.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
terminal.h Add a per-line 'trusted' status in Terminal. 2019-03-16 12:25:23 +00:00
testback.c Seat method to set the current trust status. 2019-03-16 12:25:23 +00:00
testcrypt.c New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
testcrypt.h Give a sensible error when using a too-short RSA key. 2019-02-10 09:05:47 +00:00
testsc.c New test system to detect side channels in crypto code. 2019-02-10 13:09:53 +00:00
testzlib.c Move standalone parts of misc.c into utils.c. 2019-01-03 10:54:42 +00:00
time.c Comment explaining location in top-level directory. 2005-02-07 15:23:45 +00:00
timing.c Convert a lot of 'int' variables to 'bool'. 2018-11-03 13:45:00 +00:00
tree234.c Remove some redundant variables and assignments. 2018-12-01 17:00:01 +00:00
tree234.h tree234.c: new search234() system. 2018-09-19 23:08:28 +01:00
utils.c Extra ptrlen function, ptrlen_endswith(). 2019-03-09 16:21:49 +00:00
version.c Show the git commit hash in local dev builds too. 2017-01-21 14:57:31 +00:00
version.h Server prep: pass "implementation name" to ssh_verstring_new. 2018-10-21 10:02:10 +01:00
wcwidth.c Convert a lot of 'int' variables to 'bool'. 2018-11-03 13:45:00 +00:00
wildcard.c Convert a lot of 'int' variables to 'bool'. 2018-11-03 13:45:00 +00:00
x11fwd.c Make lots of 'int' length fields into size_t. 2019-02-06 21:46:10 +00:00

README

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.