C++ non null terminated char array outputting

Question

I was trying to output a not null terminated char array to a file.

Actual thing is, I am receiving packets and then printing their fields.

Now as these field

Answer 1

I see mainly two solutions.

In case of ASCII data:

memset(dest,0,destlength); 
bytescopied = strncpy(dest, src, maxbytes);

then You'll always have clear null-terminated string in buffor.

Second in case of ASCII data:

std::string yourASCII(src,maxbytes);
yourASCII.c_str() // would be null terminated.