Question

EDIT: code sample is broken, it is missing .is_open(), please DON’T use it.
I have a rather strange question. I use boost iostreams and they work awesome, but the problem is that files that program creates are executable txt files(I’m on ubuntu,msg is :””lol2.txt” is an executable text file.”).
So is there any way to make it a regular nonexecutable file. I would like to change the code so that it doesnt create executable, files I know I can change the file after it is created from terminal or Nautilus.
btw this is the code that I’m using:

void write_file(const std::string& name,string data)
{
    iostreams::mapped_file_params params;
    params.new_file_size=data.size();
    params.path=name;
    iostreams::mapped_file_sink file(params);
    memcpy(file.data(),&data[0],data.size());
}

Answer 1

You can change the file creation mask of your process to create non-executable files by default:

umask(getumask() & ~(S_IXUSR | S_IXGRP | S_IXOTH));