hexed | A hex viewer using the Electron shell from Atom | Command Line Interface library

Intro:

Hello Community. I have been trying to encrypt a message with the https://www.npmjs.com/package/eccrypto ~ eccrypto.encrypt() function then .toString('hex') the value after encrypting but when I return the hexed value, it gives me [object object]. Why does this happen? I am new to javascript and eccrypto and any insight will be appreciated.

Relevant Code:

I am still new to python (PYTHON 3.9.1), and I am trying to make a programm that will get an ip address and then hash it. I defined a function that gets ip address, then removes dots and converts it to hexidecimal (I just want it to hash the hex of ip address). Then I defined a function that hashes using SHA256. But now when I want to use the locally defined variable that defines the Hexed IP address in the first function, in the second function to hash it, I just dont know how to do it. As the Hexed IP address is not globally defined I can't use it in another function. I could just put the code of the hashing function into the first function, and I did it and it works, but I don't like it and it makes my code messy, and I think there has got to be another way to do it.

MAIN QUESTION IS: How do I use a locally defined variable from one function in another function ?

Here is my code:

I am currently coding a simple c socket HTTP server that support gzip and chunked transfer.

The snippet for gzip and chunked write to socket is as follows:

I am creating an eclipse plugin with a view, called DataView. I want the Java Hex Editor to open in my DataView that I created. I followed this vogella post, which stated that getViewSite().getPage(), would force the editor to open in the DataView. However, when I test the code, the DataView opens separately from the editor. Note: I am using Java 8 by company requirements.

Is there anyway to fix this? I have attached my code and my current output below:

In Fortran, I'm trying to read a file with data in 8-bit (hexadecimal) bytes, on Linux.

In 'hexedit' the first line looks as it should, for the tiff-file it is.

The Systemverilog code below is a single file testbench which reads a binary file into a memory using $fread then prints the memory contents. The binary file is 16 bytes and a view of it is included below (this is what I expect the Systemverilog code to print).

The output printed matches what I expect for the first 6 (0-5) bytes. At that point the expected output is 0x80, however the printed output is a sequence of 3 bytes starting with 0xef which are not in the stimulus file. After those 3 bytes the output matches the stimulus again. It seems as if when bit 7 of the binary byte read is 1, then the error occurs. It almost as if the data is being treated as signed, but it is not, its binary data printed as hex. The memory is defined as type logic which is unsigned.

This is similar to a question/answer in this post: Read binary file data in Verilog into 2D Array. However my code does not have the same issue (I use "rb") in the $fopen statement, so that solution does not apply to this issue.

The Systemverilog spec 1800-2012 states in section 21.3.4.4 Reading binary data that $fread can be used to read a binary file and goes on to say how. I believe this example is compliant to what is stated in that section.

The code is posted on EDA Playground so that users can see it and run it. https://www.edaplayground.com/x/5wzA You need a login to run it and download. The login is free. It provides access to full cloud-based versions of the industry standard tools for HDL simulation.

Also tried running 3 different simulators on EDA Playground. They all produce the same result.

Have tried re-arranging the stim.bin file so that the 0x80 value occurs at the beginning of the file rather than in the middle. In that case the error also occurs at the beginning of the testbench printing output.

Maybe the Systemverilog code is fine and the problem is the binary file? I have provided a screenshot of what emacs hexl mode shows for it's contents. Also viewed it another viewer and it looked the same. You can download it when running on EDA Playground to examine it in another editor. The binary file was generated by GNU Octave.

Would prefer to have a solution which uses Systemverilog $fread rather than something else in order to debug the original rather than work around it (learning). This will be developed into a Systemverilog testbench which applies stimulus read from a binary file generated in Octave/Matlab to a Systemverilog DUT. Binary fileIO is prefered because of the file access speed.

Why does the Systemverilog testbench print 0xef rather than 0x80 for mem[6]?

I have a file that I am searching for specific ascii characters.

I ran the following code after getting the text from a file:

var t = text.IndexOf((char)128);

Hexedit shows I have characters of HEX 80 which is ascii character 128, but t ends up with a value of -1.

Is there another way I should be searching for this character?

TL;DR I have a large list of terms in a file which I have memory mapped. Can I access these terms as if they were a vector in memory. E.g., std::string term = terms[1];

I have a large binary file (which I create) containing millions of terms arranged like so:

I need to convert my file data into hex, and populating it with hex table.and have used seek() you can call read() and printf();