How to get terminal window width?

Question

I am working on embedded system using C and linux. User can connect to the device via SSH or a console serial cable. He can do this through PuTTY o

Answer 1

I use this code to print a bunch of equals signs as a divider. Works on most boxes/terms I've tried. Not sure what devices you are talking about. Worth a try I guess ;-)

#include 
#include 
#include 
int main(int argc, char *argv[])
{
   struct winsize ws;
   ioctl(0, TIOCGWINSZ, &ws);

   int i=0;
   for(;i<10*ws.ws_col;++i) printf("=");
   printf("\n");
   return 0;
}