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Simon Tatham 6c783f9ad0 Remove the NO_SECURITY compile-time option. 
It's had its day. It was there to support pre-WinNT platforms, on
which the security APIs don't exist - but more specifically, it was
there to support _build tools_ that only knew about pre-WinNT versions
of Windows, so that you couldn't even compile a program that would
_try_ to refer to the interprocess security APIs.

But we don't support those build systems any more in any case: more
recent changes like the assumption of (most of) C99 will have stopped
this code from building with compilers that old. So there's no reason
to clutter the code with backwards compatibility features that won't
help.

I left NO_SECURITY in place during the CMake migration, so that _just_
in case it needs resurrecting, some version of it will be available in
the git history. But I don't expect it to be needed, and I'm deleting
the whole thing now.

The _runtime_ check for interprocess security libraries is still in
place. So PuTTY tools built with a modern toolchain can still at least
try to run on the Win95/98/ME series, and they should detect that
those system DLLs don't exist and proceed sensibly in their absence.
That may also be a thing to throw out sooner or later, but I haven't
thrown it out as part of this commit.
2021-04-17 13:53:02 +01:00
charset Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
cmake Remove the NO_SECURITY compile-time option. 2021-04-17 13:53:02 +01:00
contrib New script contrib/plinkfs. 2020-08-04 18:56:47 +01:00
doc Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
icons Migrate all Python scripts to Python 3. 2020-03-04 21:23:49 +00:00
test Introduce OpenSSH-compatible SHA256 key fingerprinting. 2021-03-13 11:01:35 +00:00
unix Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
windows Remove the NO_SECURITY compile-time option. 2021-04-17 13:53:02 +01:00
.gitignore Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
agentf.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
aqsync.c Build outgoing SSH agent requests in a strbuf. 2018-05-25 14:36:16 +01:00
be_all_s.c New GUI for protocol selection. 2021-04-10 09:51:29 +01:00
be_all.c New GUI for protocol selection. 2021-04-10 09:51:29 +01:00
be_misc.c Formatting change to braces around one case of a switch. 2020-02-16 11:26:21 +00:00
be_none.c New GUI for protocol selection. 2021-04-10 09:51:29 +01:00
be_nos_s.c New GUI for protocol selection. 2021-04-10 09:51:29 +01:00
be_nossh.c New GUI for protocol selection. 2021-04-10 09:51:29 +01:00
be_ssh.c New GUI for protocol selection. 2021-04-10 09:51:29 +01:00
Buildscr Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
Buildscr.cv Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
callback.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
cgtest.c cmdgen: support configurable key fingerprint type. 2021-03-13 11:01:35 +00:00
CHECKLST.txt Fix build failure at -DNOT_X_WINDOWS. 2021-01-26 18:12:48 +00:00
clicons.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
CMakeLists.txt Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
cmdgen.c cmdgen: have --dump output private parts of PPKs. 2021-04-07 22:59:54 +01:00
cmdline.c Document new backend command-line options. 2021-02-21 16:44:51 +00:00
conf.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
config.c Bring SUPDUP config pane title in line with others. 2021-04-10 15:30:19 +01:00
console.c Console host key prompts: add 'more info' action. 2021-03-13 13:54:59 +00:00
console.h Factor out some common code in {ux,win}cons.c. 2021-03-13 11:01:35 +00:00
cproxy.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
defs.h Enforce that NDEBUG is not defined. 2021-04-17 13:52:27 +01:00
dialog.c dialog system: add a side-by-side alignment feature. 2021-04-10 09:43:25 +01:00
dialog.h dialog system: add a side-by-side alignment feature. 2021-04-10 09:43:25 +01:00
ecc.c New query function ecc_montgomery_is_identity. 2020-02-28 20:40:08 +00:00
ecc.h New query function ecc_montgomery_is_identity. 2020-02-28 20:40:08 +00:00
errsock.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
fuzzterm.c Flip direction of window pos/size queries. 2021-02-07 19:59:21 +00:00
import.c Merge the 0.74 release branch back to master. 2020-06-27 08:11:22 +01:00
LATEST.VER Update version number for 0.74 release. 2020-06-21 16:39:47 +01:00
ldisc.c Remove assertion that len != 0 in ldisc_send. 2020-06-14 15:49:36 +01:00
ldisc.h New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
LICENCE It's a new year. 2021-01-11 21:37:51 +00:00
licence.pl Separate the functions of licence.pl. 2021-04-17 13:52:27 +01:00
logging.c New wrapper macro for printf("%zu"), for old VS compat. 2020-02-09 08:51:37 +00:00
mainchan.c Relax criteria for accepting agent-forwarding channel-opens. 2020-12-23 22:26:44 +00:00
marshal.c Add BinarySource_REWIND_TO. 2020-02-09 08:21:21 +00:00
marshal.h Add BinarySource_REWIND_TO. 2020-02-09 08:21:21 +00:00
memory.c Fix undefined behaviour in safegrowarray. 2020-02-09 08:51:37 +00:00
millerrabin.c Factor out Miller-Rabin checking into its own file. 2020-02-29 16:53:34 +00:00
minibidi.c Formatting change to braces around one case of a switch. 2020-02-16 11:26:21 +00:00
misc.c Remove the NO_SECURITY compile-time option. 2021-04-17 13:53:02 +01:00
misc.h Add utility function 'memxor'. 2021-02-20 16:49:52 +00:00
miscucs.c New centralised helper function dup_mb_to_wc(). 2015-07-27 20:06:02 +01:00
mksrcarc.sh Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
mkunxarc.sh Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
mpint_i.h Start a file of 'unsafe' mp_int functions. 2020-02-23 14:49:54 +00:00
mpint.c Fix a few warnings reported by Visual Studio. 2021-04-10 11:51:08 +01:00
mpint.h Add mp_copy_integer_into function. 2020-03-01 20:09:01 +00:00
mpunsafe.c Start a file of 'unsafe' mp_int functions. 2020-02-23 14:49:54 +00:00
mpunsafe.h Start a file of 'unsafe' mp_int functions. 2020-02-23 14:49:54 +00:00
network.h Greatly improve printf format-string checking. 2020-02-09 08:51:37 +00:00
nocmdline.c Make cmdline_tooltype a const int. 2020-01-30 06:40:22 +00:00
nocproxy.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +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 noprint.c: fix compile failure. 2021-02-10 21:07:57 +00:00
noproxy.c Introduce noproxy.c. 2020-09-13 09:11:31 +01:00
norand.c Centralise 'no random numbers' stubs into norand.c. 2020-02-07 19:17:19 +00:00
noshare.c Fix type error in noshare.c. 2020-11-14 21:39:14 +00:00
noterm.c Make calling term_nopaste() a cross-platform feature. 2013-08-17 16:06:40 +00:00
notiming.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
nullplug.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
pageant.c pageant_get_keylist: add missing init of kl->broken. 2021-04-10 10:55:53 +01:00
pageant.h winpgnt: menu options to delete/reencrypt everything. 2021-04-04 10:02:24 +01:00
pgssapi.c Fix a missing } in a GSSAPI-related comment. 2018-04-26 07:11:09 +01:00
pgssapi.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pinger.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pockle.c Fix false negative in Pockle discriminant check. 2020-03-13 08:02:27 +00:00
portfwd.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
pproxy.c Get rid of lots of implicit pointer types. 2018-10-04 19:10:23 +01:00
primecandidate.c PrimeCandidateSource: add one-shot mode. 2020-03-07 11:24:12 +00:00
proxy.c Fix downright weird line breaking. 2021-02-13 10:11:30 +00:00
proxy.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pscp.c Remove MD5 fingerprints from usage messages. 2021-03-27 18:39:16 +00:00
psftp.c Remove MD5 fingerprints from usage messages. 2021-03-27 18:39:16 +00:00
psftp.h Remove FLAG_VERBOSE. 2020-01-30 06:40:21 +00:00
psftpcommon.c Fall back to not sorting large dirs in pscp -ls or psftp 'ls'. 2019-07-10 20:47:09 +01:00
psocks.c psocks: remove print_c_string(). 2021-04-08 01:45:03 +01:00
psocks.h Auxiliary application: 'psocks', a simple SOCKS server. 2020-02-23 16:36:27 +00:00
putty.h New GUI for protocol selection. 2021-04-10 09:51:29 +01:00
puttymem.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
puttyps.h Delete the old 'macosx' directory completely. 2016-03-25 09:06:03 +00:00
raw.c Remove NULL initialisers in BackendVtables. 2021-02-21 22:40:09 +00:00
README Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
release.pl Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
resource.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
rlogin.c Remove NULL initialisers in BackendVtables. 2021-02-21 22:40:09 +00:00
scpserver.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sesschan.c Uppity: add stunt for unauthorised agent forwarding attempts. 2020-12-23 22:26:44 +00:00
sessprep.c sessprep: fix detection of unbracketed IPv6 literals. 2019-03-22 16:32:41 +00:00
settings.c Merge the 0.74 release branch back to master. 2020-06-27 08:11:22 +01:00
sftp.c Impose an upper bound on incoming SFTP packet length. 2021-04-10 09:00:49 +01:00
sftp.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sftpcommon.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sftpserver.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sign.sh Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
smallprimes.c Move init_primes_array out into its own file. 2020-02-23 14:12:21 +00:00
ssh1bpp.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
ssh1censor.c Add and use BinarySource_*INIT_PL. 2019-02-06 21:46:10 +00:00
ssh1connection-client.c Relax criteria for accepting agent-forwarding channel-opens. 2020-12-23 22:26:44 +00:00
ssh1connection-server.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
ssh1connection.c Relax criteria for accepting agent-forwarding channel-opens. 2020-12-23 22:26:44 +00:00
ssh1connection.h Relax criteria for accepting agent-forwarding channel-opens. 2020-12-23 22:26:44 +00:00
ssh1login-server.c Merge the 0.74 release branch back to master. 2020-06-27 08:11:22 +01:00
ssh1login.c Pass more information to interactive host key check. 2021-03-13 13:54:59 +00:00
ssh2bpp-bare.c Support receiving RFC 8308 SSH2_MSG_EXT_INFO. 2020-11-21 15:09:41 +00:00
ssh2bpp.c Support receiving RFC 8308 SSH2_MSG_EXT_INFO. 2020-11-21 15:09:41 +00:00
ssh2censor.c Add and use BinarySource_*INIT_PL. 2019-02-06 21:46:10 +00:00
ssh2connection-client.c Relax criteria for accepting agent-forwarding channel-opens. 2020-12-23 22:26:44 +00:00
ssh2connection-server.c Pass SshServerConfig through to sesschan.c. 2019-03-31 10:35:10 +01:00
ssh2connection.c Fix premature exit if 'plink -shareexists' happens early. 2021-02-21 10:53:31 +00:00
ssh2connection.h Fix premature exit if 'plink -shareexists' happens early. 2021-02-21 10:53:31 +00:00
ssh2kex-client.c Pass more information to interactive host key check. 2021-03-13 13:54:59 +00:00
ssh2kex-server.c Support rsa-sha2-* host keys in Uppity. 2020-11-22 08:13:21 +00:00
ssh2transhk.c Add missing del234 in ssh_transient_hostkey_cache_add. 2019-06-15 21:37:36 +01:00
ssh2transport.c ssh2kex-client.c: get rid of s->fingerprint. 2021-03-13 11:01:35 +00:00
ssh2transport.h ssh2kex-client.c: get rid of s->fingerprint. 2021-03-13 11:01:35 +00:00
ssh2userauth-server.c Merge the 0.74 release branch back to master. 2020-06-27 08:11:22 +01:00
ssh2userauth.c Fix minor memory leak in rsa-sha2-256 userauth. 2020-11-25 16:25:21 +00:00
ssh.c Mention any extant downstreams in close warning. 2021-02-21 14:32:51 +00:00
ssh.h Switch default host key format to SHA256. 2021-03-13 13:54:59 +00:00
sshaes.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
ssharcf.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshargon2.c Argon2 hprime: remove pointless bounds check. 2021-04-10 08:54:43 +01:00
sshauxcrypt.c Add an IV argument to aes_{en,de}crypt_pubkey. 2021-02-20 16:49:52 +00:00
sshbcrypt.c Access all hashes and MACs through the standard API. 2019-01-20 17:09:24 +00:00
sshblake2.c Add an implementation of BLAKE2b. 2021-02-20 16:49:52 +00:00
sshblowf.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshblowf.h Turn SSH-2 ciphers into a classoid. 2018-09-19 23:08:07 +01:00
sshbpp.h Support receiving RFC 8308 SSH2_MSG_EXT_INFO. 2020-11-21 15:09:41 +00:00
sshccp.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshchan.h Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshcommon.c Allow pre-storing host key fingerprints of all types. 2021-03-13 13:54:59 +00:00
sshcr.h Assorted benign warning fixes. 2020-01-29 06:44:18 +00:00
sshcrc.c Rewrite CRC implementation to be constant-time. 2019-01-16 06:22:49 +00:00
sshcrcda.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
sshdes.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshdh.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshdss.c Merge the 0.74 release branch back to master. 2020-06-27 08:11:22 +01:00
sshdssg.c PrimeCandidateSource: remember prime factors of n-1. 2020-03-01 20:09:01 +00:00
sshecc.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshecdsag.c New vtable API for keygen progress reporting. 2020-02-29 16:53:34 +00:00
sshgss.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshgssc.c Make dupcat() into a variadic macro. 2019-10-14 19:42:37 +01:00
sshgssc.h Support GSS key exchange, for Kerberos 5 only. 2018-04-26 07:21:16 +01:00
sshhmac.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshkeygen.h RSA generation: option to generate strong primes. 2020-03-07 11:37:31 +00:00
sshmac.c sshmac.c: remove excessive return statement 2019-01-02 22:50:08 +00:00
sshmd5.c Rewrite MD5 implementation in my modern style. 2020-12-24 17:30:23 +00:00
sshnogss.c Post-release destabilisation! Completely remove the struct type 2011-07-14 18:52:21 +00:00
sshppl.h Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshprime.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshprng.c Stop using mp_int in sshprng.c. 2020-09-13 09:11:31 +01:00
sshpubk.c Fix failure handling when loading a PPK file. 2021-04-10 09:13:49 +01:00
sshrand.c Remove dependency of sshrand.c on SHA-512. 2020-09-13 09:11:31 +01:00
sshrsa.c Add API for getting all of a key's fingerprints. 2021-03-13 11:01:35 +00:00
sshrsag.c RSA generation: option to generate strong primes. 2020-03-07 11:37:31 +00:00
sshserver.c Uppity: add stunt for unauthorised agent forwarding attempts. 2020-12-23 22:26:44 +00:00
sshserver.h Uppity: add stunt for unauthorised agent forwarding attempts. 2020-12-23 22:26:44 +00:00
sshsh256.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshsh512.c Fix buffer overflow in NEON SHA-384 output. 2020-12-24 17:39:54 +00:00
sshsha3.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshsha.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshshare.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +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
sshutils.c Remove redundant #includes from sshutils.c. 2020-09-13 09:10:55 +01:00
sshverstring.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00
sshzlib.c Fix a few warnings reported by Visual Studio. 2021-04-10 11:51:08 +01:00
storage.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
stripctrl.c stripctrl: clean up precarious handling of 'width'. 2019-07-23 19:58:48 +01:00
supdup.c Make the backend_init error message dynamic. (NFC) 2020-04-18 13:33:51 +01:00
telnet.c Make the backend_init error message dynamic. (NFC) 2020-04-18 13:33:51 +01:00
terminal.c Make pterm's default window title more sensible. 2021-03-08 06:59:26 +00:00
terminal.h Apply UPDATE_DELAY in arrears, not in advance. 2021-02-07 19:59:21 +00:00
testback.c Make the backend_init error message dynamic. (NFC) 2020-04-18 13:33:51 +01:00
testcrypt.c Introduce OpenSSH-compatible SHA256 key fingerprinting. 2021-03-13 11:01:35 +00:00
testcrypt.h Introduce OpenSSH-compatible SHA256 key fingerprinting. 2021-03-13 11:01:35 +00:00
testsc.c Introduce PPK file format version 3. 2021-02-20 16:57:47 +00:00
testzlib.c Ensure test programs have a dputs(). 2020-11-28 17:44:27 +00:00
time.c Comment explaining location in top-level directory. 2005-02-07 15:23:45 +00:00
timing.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
tree234.c Greatly improve printf format-string checking. 2020-02-09 08:51:37 +00:00
tree234.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
utils.c Add API for getting all of a key's fingerprints. 2021-03-13 11:01:35 +00:00
version.c Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
version.h Replace mkfiles.pl with a CMake build system. 2021-04-17 13:53:02 +01:00
wcwidth.c wcwidth: update wide[] array to Unicode 13.0.0. 2021-01-19 18:34:15 +00:00
wildcard.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
x11fwd.c Change vtable defs to use C99 designated initialisers. 2020-03-10 21:06:29 +00:00

README 

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

PuTTY is built using CMake <https://cmake.org/>. To compile in the
simplest way (on any of Linux, Windows or Mac), run these commands in
the source directory:

  cmake .
  cmake --build .

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.