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Commit Graph

22 Commits

Author SHA1 Message Date
Tim Kosse
636f9cf2ee Use DWORD as length argument for RegQueryValueEx. 2015-08-15 13:54:55 +01:00
Ben Harris
d21041f7f8 Add have_ssh_host_key() and use it to influence algorithm selection.
The general plan is that if PuTTY knows a host key for a server, it
should preferentially ask for the same type of key so that there's some
chance of actually getting the same key again.  This should mean that
when a server (or PuTTY) adds a new host key type, PuTTY doesn't
gratuitously switch to that key type and then warn the user about an
unrecognised key.
2015-05-30 01:01:36 +01:00
Simon Tatham
9fa5b9858c Cope with REG_SZ data not having a trailing NUL.
A user points out that the person who writes a REG_SZ into the
registry can choose whether or not to NUL-terminate it properly, and
if they don't, RegQueryValueEx will retrieve it without the NUL. So if
someone does that to PuTTY's saved session data, then PuTTY may
retrieve nonsense strings.

Arguably this is the fault of whoever tampered with the saved session
data without doing it the same way we would have, but even so, there
ought to be some handling at our end other than silently returning the
wrong data, and putting the NUL back on seems more sensible than
complaining loudly.

[originally from svn r10215]
2014-09-07 13:06:50 +00:00
Simon Tatham
f9f93584c2 Fix a double error handling goof in the winstore side of the jump list
support: transform_jumplist_registry should give its caller
dynamically allocated data if and only if it returns JUMPLISTREG_OK,
and get_jumplist_registry_entries should test the return value against
JUMPLISTREG_OK rather than a value from a totally different enum.

[originally from svn r9960]
2013-07-22 07:11:58 +00:00
Simon Tatham
b99bec3b02 Another big batch of memory leak fixes, again mostly on error paths.
The most interesting one is printer_add_enum, which I've modified to
take a char ** rather than a char * so that it can both realloc its
input buffer _and_ return NULL to indicate error.

[originally from svn r9959]
2013-07-22 07:11:54 +00:00
Simon Tatham
888804eef7 Report an error if deleting a random seed file fails.
(This has also required me to add a currently unused nonfatal() to
PuTTYgen, since although PuTTYgen won't actually try to delete
putty.rnd, it does link in winstore.c as a whole.)

[originally from svn r9957]
2013-07-22 07:11:44 +00:00
Simon Tatham
62cbc7dc0b Turn 'Filename' into a dynamically allocated type with no arbitrary
length limit, just as I did to FontSpec yesterday.

[originally from svn r9316]
2011-10-02 11:01:57 +00:00
Simon Tatham
9c75fe9a3f Change the semantics of 'FontSpec' so that it's a dynamically
allocated type.

The main reason for this is to stop it from taking up a fixed large
amount of space in every 'struct value' subunion in conf.c, although
that makes little difference so far because Filename is still doing
the same thing (and is therefore next on my list). However, the
removal of its arbitrary length limit is not to be sneezed at.

[originally from svn r9314]
2011-10-01 17:38:59 +00:00
Simon Tatham
a1f3b7a358 Post-release destabilisation! Completely remove the struct type
'Config' in putty.h, which stores all PuTTY's settings and includes an
arbitrary length limit on every single one of those settings which is
stored in string form. In place of it is 'Conf', an opaque data type
everywhere outside the new file conf.c, which stores a list of (key,
value) pairs in which every key contains an integer identifying a
configuration setting, and for some of those integers the key also
contains extra parts (so that, for instance, CONF_environmt is a
string-to-string mapping). Everywhere that a Config was previously
used, a Conf is now; everywhere there was a Config structure copy,
conf_copy() is called; every lookup, adjustment, load and save
operation on a Config has been rewritten; and there's a mechanism for
serialising a Conf into a binary blob and back for use with Duplicate
Session.

User-visible effects of this change _should_ be minimal, though I
don't doubt I've introduced one or two bugs here and there which will
eventually be found. The _intended_ visible effects of this change are
that all arbitrary limits on configuration strings and lists (e.g.
limit on number of port forwardings) should now disappear; that list
boxes in the configuration will now be displayed in a sorted order
rather than the arbitrary order in which they were added to the list
(since the underlying data structure is now a sorted tree234 rather
than an ad-hoc comma-separated string); and one more specific change,
which is that local and dynamic port forwardings on the same port
number are now mutually exclusive in the configuration (putting 'D' in
the key rather than the value was a mistake in the first place).

One other reorganisation as a result of this is that I've moved all
the dialog.c standard handlers (dlg_stdeditbox_handler and friends)
out into config.c, because I can't really justify calling them generic
any more. When they took a pointer to an arbitrary structure type and
the offset of a field within that structure, they were independent of
whether that structure was a Config or something completely different,
but now they really do expect to talk to a Conf, which can _only_ be
used for PuTTY configuration, so I've renamed them all things like
conf_editbox_handler and moved them out of the nominally independent
dialog-box management module into the PuTTY-specific config.c.

[originally from svn r9214]
2011-07-14 18:52:21 +00:00
Simon Tatham
7dab9e5573 Vyacheslav Andrejev points out a heap management goof in the new jump
list code. Free the old value of the pointer variable we just
overwrote, not the new one!

[originally from svn r9062]
2010-12-29 13:35:44 +00:00
Jacob Nevins
ed80dcc3cf Try to delete jump lists in "-cleanup".
[originally from svn r9050]
2010-12-26 20:00:45 +00:00
Simon Tatham
1a03fa9292 Support for Windows 7 jump lists (right-click on a program's taskbar
icon, even if the program isn't running at the time, to be presented
with an application-defined collection of helpful links). The current
jump list is updated every time a saved session is loaded, and shows
the last few launchable saved sessions (i.e. not those like Default
Settings) that were loaded. Also, if Pageant or PuTTYgen or both is in
the same directory as the PuTTY binary, the jump list will present
links to launch those too.

Based on a patch sent last year by Daniel B. Roy, though it's barely
recognisable any more...

[originally from svn r9046]
2010-12-23 17:32:28 +00:00
Simon Tatham
9f274bed91 Create, and use for all loads of system DLLs, a wrapper function
called load_system32_dll() which constructs a full pathname for the
DLL using GetSystemDirectory.

The only DLL load not covered by this change is the one for
gssapi32.dll, because that one's not in the system32 directory.

[originally from svn r8993]
2010-09-13 08:29:45 +00:00
Jacob Nevins
8b68066205 We defined tried_shgetfolderpath but never actually set it. Harmless, but fixed.
[originally from svn r8740]
2009-11-08 19:25:22 +00:00
Jacob Nevins
b85038d8a9 Use DECL/GET_WINDOWS_FUNCTION in a few more places in place of ad-hoc
GetProcAddress().

[originally from svn r8739]
2009-11-08 19:22:28 +00:00
Jacob Nevins
097fc8b43d MinGW needs an extra symbol _WIN32_IE defined to a particular value before
it'll let you see an identifier (SHGFP_TYPE_CURRENT) referenced since r7082.
(Actually, you need a pretty recent w32api before it's there at all.)

Morally, this should be defined for all toolchains, not just MinGW/Cygwin, but  I'll leave that to people who have those toolchains.
<http://msdn2.microsoft.com/en-us/library/aa383745.aspx>

Also add some other comments on our use of this API (since it's a horrible one
that I suspect will come back and haunt us...)

[originally from svn r7087]
[r7082 == dbbd6eb5ec]
[this svn revision also touched putty-wishlist]
2007-01-09 23:47:15 +00:00
Simon Tatham
dbbd6eb5ec Fix `win-randseed-location': use SHGetFolderPath() to find the
Application Data directory in preference to the old-fashioned
attempt to find the user's home directory, and use the _local-
machine_ Application Data directory in preference even to that.

SHGetFolderPath() is called via GetProcAddress, so this degrades
gracefully on old Windowses. (Tested myself on Win95.)

As part of this change, we now search for a location for the seed
file separately for reading and writing, so that installing the new
PuTTY should cause a seamless migration as the old seed file is read
from the old location and then a new one written to the new location.

`putty -cleanup' attempts to delete the seed file from _all_
affected locations.

Naturally, a user-specified seed file path in the Registry still
takes priority over all other means of finding the location.

[originally from svn r7082]
2007-01-09 18:05:17 +00:00
Jacob Nevins
9cde5fa319 Minor memory leak spotted by Mikhail Kruk.
[originally from svn r5815]
2005-05-20 21:52:07 +00:00
Jacob Nevins
3fc33c4118 More confusing "(BYTE *) & val" style punctuation.
I blame GNU indent, although its confusion is understandable.

[originally from svn r5432]
2005-03-02 15:53:50 +00:00
Jacob Nevins
f13f9f6420 Fix potential access of freed data (only if we couldn't create the
second of two registry keys, so pretty unlikely).

[originally from svn r5021]
2004-12-22 23:17:02 +00:00
Jacob Nevins
4f6e453530 Add missing backslash in "Unable to create registry key" messages.
[originally from svn r4855]
2004-11-20 19:07:34 +00:00
Simon Tatham
cb45b9cc25 Now that we have Subversion's file renaming ability, it's time at
long last to move all the Windows-specific source files down into a
`windows' subdirectory. Only platform-specific files remain at the
top level. With any luck this will act as a hint to anyone still
contemplating sending us a Windows-centric patch...

[originally from svn r4792]
2004-11-16 22:14:56 +00:00