Trailing characters after strncpy

Hi Guys,
i have searched but could not find any previouse solution.
I'm coping n characters, but after sending the final to the
printer, i get some trailing characters like c@xn after the
true result.
example
str[]="mynameissomename";
strncpy(name,str,4);

when i send this to
fprintf(prn_ptr,"%s",name);
the result is mynam@cxn on the printer.
Any help will do

thanks

Your code is incomplete. What is "name"? Without seeing your exact code, one can only speculate. I'm assuming name is a 4 byte array. As such, it's not null terminated, so your print statement displays until it hits a null (at some random point in memory).

Quzah.

Thanks guys for your reply, it has solved the problem

Happy new year to u all