- > To help the team stay in touch, a custom chatroom has been created using a Tcl/Tk script. The same script works as both client and server. The chatroom is private and uses a proprietary protocol, so that developers are free to discuss sensitive matters without fear of eavesdropping. The chatroom is implemented as just over 1000 lines of Tk code, and is thus accessible and easy to customize.
Curious if anyone has more details on this. Does it have encryption?
- relevant links:
https://en.wikipedia.org/wiki/Modified_condition/decision_co...
https://shemesh.larc.nasa.gov/fm/papers/Hayhurst-2001-tm2108... (This tutorial provides a practical approach to assessing modified condition/decision coverage (MC/DC) for aviation software products that must comply with regulatory guidance for DO-178B level A software)
- > SQLite supports this syntax. But because of its TCL heritage, SQLite also allows the parameter to take the form of a TCL variable. Hence:
SELECT passwd, photo FROM user WHERE uid=$uid
Did they put "eval" in SQL parameter processing? Is there an SQL injection attack vulnerability there?
- I don't get the Tcl hate. I use it all the time on Cisco gear, and it's incredibly useful. Sure, if you try and turn it into a 10k+ LOC solution, life is going to suck. But in it's use case envelope, so much value.
But then I'm old and still use perl for small stuff, so probably not reading the room....
by porridgeraisin
0 subcomment
- > It turns out that sqlite3_analyzer, though disguised as an ordinary executable, is really a TCL application. The main source code file for this application is tool/spaceanal.tcl. During the build process, this script is converted into a C-language string constant (using another TCL script) and added to a very simple C-language wrapper than starts a TCL interpreter and then passes the application script to that interpreter.
Haha, didn't know that. That's cool.
While most of this looks cool, the stuff about parsing vdbe.c's switch cases and assigning opcodes seems a little too much for my taste.
- [flagged]
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