LowFat | Lean C/C Bounds Checking with Low-Fat Pointers

by GJDuck C++ Version: Current License: Non-SPDX

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kandi X-RAY | LowFat Summary

LowFat is a C++ library typically used in Utilities applications. LowFat has no bugs, it has no vulnerabilities and it has low support. However LowFat has a Non-SPDX License. You can download it from GitHub.

LowFat is a new bounds checking system for the x86-64 based on the idea low-fat pointers. LowFat is designed to detect object out-of-bounds errors (OOB-errors), such as buffer overflows (or underflows), that are a common source of crashes, security vulnerabilities, and other program misbehavior. LowFat is designed to have low overheads, especially memory, compared to other bounds checking systems.

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Quality

Security

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Support

LowFat has a low active ecosystem.

It has 142 star(s) with 17 fork(s). There are 9 watchers for this library.

It had no major release in the last 6 months.

There are 2 open issues and 11 have been closed. On average issues are closed in 6 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of LowFat is current.

Quality

LowFat has no bugs reported.

Security

LowFat has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

LowFat has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

LowFat releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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LowFat Key Features

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LowFat Examples and Code Snippets

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Community Discussions

Trending Discussions on LowFat

pyomo + reticulate error 6 the handle is invalid

XML in Polymer template with iron-ajax - handle-as, adding XML DOM to template

QUESTION

pyomo + reticulate error 6 the handle is invalid

Asked 2019-Jul-31 at 15:11

I'm trying to run a pyomo optimization and I get the error message [Error 6] The handle is invalid. Not sure how to interpret it, looking around it seems to have something to do with privileges but I don't really understand it.

Find below the complete error trace and also a toy example to reproduce it.

Full error trace:

Error in py_run_file_impl(file, local, convert) : ApplicationError: Could not execute the command: 'C:\Users\xxx\AppData\Local\Continuum\anaconda3\envs\lucy\Library\bin\ipopt.exe c:\users\xxx\appdata\local\temp\tmpp2hmid.pyomo.nl -AMPL' Error message: [Error 6] The handle is invalid

Detailed traceback: File "", line 46, in File "C:\Users\xxx\AppData\Local\CONTIN~1\ANACON~1\envs\lucy\lib\site-packages\pyomo\opt\base\solvers.py", line 578, in solve _status = self._apply_solver() File "C:\Users\xxx\AppData\Local\CONTIN~1\ANACON~1\envs\lucy\lib\site-packages\pyomo\opt\solver\shellcmd.py", line 246, in _apply_solver self._rc, self._log = self._execute_command(self._command) File "C:\Users\xxx\AppData\Local\CONTIN~1\ANACON~1\envs\lucy\lib\site-packages\pyomo\opt\solver\shellcmd.py", line 309, in _execute_command tee = self._tee File "C:\Users\xxx\AppData\Local\CONTIN~1\ANACON~1\envs\lucy\lib\site-packages\pyutilib\subprocess\processmngr.py", line 660, in run_command

Reproducible example based on this.

Pure python code (it works when I run it in python, in the conda environment called "lucy"):

...

ANSWER

Answered 2019-Jun-07 at 09:23

I can not say I understand this problem entirely, however it is a very interesting one to research, mainly because I got a different error message

TypeError: signal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable object

and while I got the error every time I ran py_run_file("test.py") in a new r session, by the second run there was no error.

That being said I believe it is related to this issue: https://github.com/PyUtilib/pyutilib/issues/31

I didn't face any problem after adding the two lines :

Source https://stackoverflow.com/questions/56379818

QUESTION

XML in Polymer template with iron-ajax - handle-as, adding XML DOM to template

Asked 2017-Jan-10 at 03:41

I'm writing my first Polymer app, which should allow people to read Greek texts from the Bible. I'm trying to read an XML file to create a DOM, then use it in a template.

In , does handle-as="xml" work? This bug suggests that it might not: https://github.com/PolymerElements/iron-ajax/issues/53

The following code loads a file if I change handle-as="xml" to handle-as="text", but (obviously) the result is just a bunch of text with angle brackets, not an XML DOM. It does not work if I change it to handle-as="document":

...

ANSWER

Answered 2017-Jan-10 at 03:41

Here are the relevant parts of the MDN docs you need:

The XMLHttpRequest.responseXML property is [...] null if the request was unsuccessful, has not yet been sent, or if the retrieved data can't be correctly parsed as XML or HTML.

[...]

If the server doesn't specify the Content-Type header as "text/xml" or "application/xml", you can use XMLHttpRequest.overrideMimeType() to force XMLHttpRequest to parse it as XML anyway.

In the handler of the .response event, if we log the XHR's response (i.e., event.detail.response.xhr.responseXML), we see it's null, which indicates one of failure conditions mentioned in the MDN docs above. It's likely that the response body couldn't be parsed properly because of an unexpected Content-Type.

In your case, the server is responding with a Content-Type of text/plain despite the request header containing Accept: text/xml, which causes a parser error, leading to a null for responseXML.

We can fall back to the workaround indicated by the MDN docs to use XMLHttpRequest.overrideMimeType() to force the parsing of the contents as XML regardless of its Content-Type. This can be done in an .request event handler (fired before the request is sent):

Source https://stackoverflow.com/questions/41558079

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install LowFat

You can download it from GitHub.

Support

LowFat should be considered beta quality software. It has not yet been extensively tested on software other than the SPEC2006 benchmark suite. Please submit bug reports to [https://github.com/GJDuck/LowFat/issues](https://github.com/GJDuck/LowFat/issues).

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