Archive for the ‘Delphi’ Category
Posted by jpluimers on 2016/12/30
When you ship OpenSSL DLLs, you should provide an update mechanism outside of your regular product cycle that updates these shortly after vulnerabilities are fixed.
Few if any products do that. So I made an overview from products and OpenSSL DLL versions I had installed on various systems.
I’m a developer, so the list is biased towards tools I use often.
All of them are vulnerable: [WayBack] https://www.openssl.org/news/vulnerabilities.html
- 1.0.2.h by ContinuaCI 1.8.1.185 PostgreSQL and Avast 12.3
- 1.0.2.g by SourceTree 1.9.x embedded git_local
- 1.0.2d by Git for Windows 2.6.1
- 1.0.2a by SQLite browser 3.7.0
- 1.0.1m by Delphi 10.0 Seattle
- 1.0.1l by Ruby 2.3
- 1.0.1f by SlikSvn 1.8.5
- 1.0.1g by Delphi XE8, Delphi XE7, VMware Workstation OVF tool and Adobe Creative Cloud 2.8.1
- 1.0.0g by Delphi XE6, Delphi XE5, Delphi XE4, Delphi XE3, Appmethod 1.13 and CollabNet SVN Client 1.7.5
- 1.00d by MarkdownPad 2
- 1.0.0 by FinalBuider 7 XE2 and FinalBuilder 7 EE
- 0.9.8za by VMware Remote Console Plug-in 5.1 and VMware Virtual Infrastructure Client 5.1
- 0.9.8y by VMware VIX Workstation 10
- 0.9.8t by Veaam Backup and Replication
- 0.9.8r by ContinuaCI 1.8.1.185 hg support, VMware VIX and VMware Workstation 8.0.2
- 0.9.8q by Veeam Backup Transport, Veaam Backup, xampp 1.7.4 and Replication and VMware Virtual Infrastructure Client 5.0
- 0.9.8o by xampp 1.7.4
- 0.9.8l by xampp 1.7.4
- 0.9.8n by Delphi XE2, Delphi XE and VMware VIX Workstation 7.1.0
- 0.9.8m by VMware VMRC Plug-in, VMware VIX and VMware Workstation 8.0.2
- 0.9.8i by VMware Virtual Infrastructure Client 4.1
- 0.9.8d by Database Workbench Pro 4.4.3, Database Workbench Pro 5.2.4 and VMware vSphere CLI Perl
- 0.9.8b by Adobe Creative Suite 5
- 0.9.7m by VMware VIX server 1.0.9
- 0.9.7l by VMware VIX VIServer 2
- N/A by Adobe Create Suite 5 and VMware VIX server 1
–jeroen
via: [WayBack] Does Delphi installer install OpenSSL dll’s?
PS: Below some Software Archeology related links in the comments.
Posted in .NET, CollabNet, Delphi, Development, DVCS - Distributed Version Control, git, OpenSSL, Power User, Ruby, Security, Software Development, Source Code Management, SourceTree, Subversion/SVN | 7 Comments »
Posted by jpluimers on 2016/12/29
In recent Delphi version, FastReport version 5 ships. But for parts of FastReport, it’s a trial. This includes the FastScript part. The trial is very close to the real FastReport 5 thing. So real that when you compile you don’t see a difference, not even when trial and official things are mixed.
The only difference is that the trial will have a ShowMessage result like this:
ShowMessage(‘Unregistered version of FastScript’);
[Window Title]
Fastscriptexecute
[Content]
Unregistered version of FastScript.
[OK]
This occurred when I tried to move a the build process to a build server; a very tiny program will show this:
program FastScriptExecute;
uses
Vcl.Forms,
fs_iinterpreter;
{$R *.res}
var
fs: TfsScript;
begin
fs := TfsScript.Create(nil);
try
fs.Execute();
finally
fs.Free();
end;
end.
The build server had Delphi installed but not FastReports 5. I put all the sources in version control and fiddled with the project search paths until it built on the server.
Wrong!
Since the trial is so close to the real version, it will compile even if you don’t include all directories. In fact some permutations of the FastReports source and Delphi XE8 FastReports trial DUCs build perfectly fine.
Read the rest of this entry »
Posted in Delphi, Delphi XE8, Development, FastReport, Software Development | 1 Comment »
Posted by jpluimers on 2016/12/27
A long while ago, but still an interesting discussion: Is there a predictable order of execution for Class Constructors? leading to these links:
–jeroen
Posted in Conference Topics, Conferences, Delphi, Delphi 10 Seattle, Delphi 2010, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Event, Software Development | Leave a Comment »
Posted by jpluimers on 2016/12/22
In functional programming, sequences are an important way of expressing logic.
This G+ post by Colin Johnsun discusses a library and a Spring4D way to handle sequences: I’ve release a library that allows you to iterate through a collection of items without using loops…
It’s interesting when mapping, reducing and solving many other problems in a functional way.
Background:
–jeroen
Posted in Delphi, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2016/12/21
Some of the [Wayback] Ken Thompson – Wikiquote entries come from a great [Wayback] 1983 ACM Turing Award Acceptance Lecture [Wayback] “Reflections on Trusting Trust”.
That lecture used to be on http://cm.bell-labs.com/who/ken/trust.html
But it isn’t, and was not in the WayBack machine and neither in the Google Cache [Archive.is] because of the [Wayback/Archive.is] robots.txt. Historic link rot galore!
Edit 20210728: by now it is in the Wayback machine again; the earliest archived copy is from 2001, it also shows that as of april 2015 it is gone from the bell labs server.
The lecture is about [Wayback] compiler viruses and viruses actually did this at least a few times: Wayback: Delphi in 2009 and to [Wayback] XCode in 2015.
A few nice links from [Wayback] ACM Classic: Reflections on Trusting Trust – Google Groups though:
And archived versions of (I hope accurate) copies of the article:
Finally I found a PDF copy of the original ACM prints that Greg Ganger of Electrical and Computer Engineering at Carnegie Mellon University has online. It’s archived too.
–jeroen
Further reading:
Posted in *nix, Conference Topics, Conferences, Delphi, Delphi 4, Delphi 5, Delphi 6, Delphi 7, Development, Event, Fun, Internet, link rot, Power User, Quotes, Software Development, T-Shirt quotes, WWW - the World Wide Web of information, xCode/Mac/iPad/iPhone/iOS/cocoa | Leave a Comment »
Posted by jpluimers on 2016/12/20
Posted in Delphi, Delphi 10 Seattle, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, DUnit, Software Development | Leave a Comment »
Posted by jpluimers on 2016/12/14
Back in the .NET days, Delphi had an FINITEFLOAT compile option that came without a single-character shortcut.
It was about the handling of infinite float and other special float values in cases like overflow and underflow (including +Inf, -Inf and [Wayback] NaN).
At first – in the [Wayback] Delphi 8 (Octane) era of which few people want to be reminded off – it was the [Wayback] undocumented counterpart of the [Wayback] 8087 exception mask in x86 mode. Hallvard Vassbotn wrote an article about it and Chee Wee Chua documented it before it got documented in Delphi 2009 (that coincidentally dropped .NET support in the compiler – go figure):
Whereas the native Delphi compilers had exceptions turned on, Microsoft compilers (including .NET) had them turned off, hence the compiler option.
Like most new Delphi features in this century, FINITEFLOAT didn’t come without quirks. Often these are fleshed out in 2-3 product releases, but this one wasn’t:
The FINITEFLOAT compile option didn’t have a single-character shortcut. This made it impossible to use the {$IFOPT ...} construct as IFOPT only works for single-character compiler options.
Which means you get questions like [Wayback] Why doesn’t {$ifopt FINITEFLOAT ON} compile? – Stack Overflow (I actually got into writing this article because I found a {$DEFINE FINFINITEFLOAT_ENABLED} in some pretty old code) and compiler enhancement requests like [WayBack] QualityCentral – Please enhance the IFOPT directive for long switch names. It’s easier to read (which will likely never bee fixed).
For completeness some more information about exception masks in the native compiler:
- In the past you could only set the exception mask as part of the full control word using [Wayback] Set8087CW, nowadays you can use [Wayback] SetExceptionMask.
- Next to a precision mask, there are five exception masks you can set, see for instance this table from the [Wayback] Simply FPU Chap.1 Control Word section:
PM (bit 5) or Precision Mask
UM (bit 4) or Underflow Mask
OM (bit 3) or Overflow Mask
ZM (bit 2) or Zero divide Mask
DM (bit 1) or Denormalized operand Mask
IM (bit 0) or Invalid operation Mask
–jeroen
Posted in 8087, Algorithms, Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 8, Development, Floating point handling, History, QC, Software Development | 1 Comment »
Posted by jpluimers on 2016/12/14
Some links; hopefully I can fill in more details later:
–jeroen
Posted in Delphi, Delphi 2007, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2016/12/07
Formy snippet archive (thanks Walter Prins for answering and Oliver Funcke for asking and elaborating on the answer):
in the case of error, you can get what would’ve normally been in the contentstream from the ExceptionObj.ErrorMessage property. So you can use something like the following if you want to get the content response regardless of http response code (untested):
var
FResponseStream: TStringStream;
FRequestURL, Content : String;
begin
//.... etc etc
try
FIdHTTP.Get(FRequestURL, FResponseStream);
Content := FResponseStream.DataString;
except
on E:EIdHTTPProtocolException do
Content := E.ErrorMessage;
end;
// At this point, "Content" contains the response body, both for
// successful (200) as well as other response codes.
//.... etc etc
end;
….
You can even do it simpler:
Response := IdHTTP.Get('http://host/path', [404]);
Source: delphi – Indy and REST – Can I prevent exceptions? – Stack Overflow
–jeroen
via:
Posted in Delphi, Delphi 10 Seattle, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | 2 Comments »
The Wiert Corner - irregular stream of stuff 