help needed with signal(2)

[Eric Pearce]

In article <660 at amethyst.ma.arizona.edu> eros!barsam at arizona.edu says:
>I have a C program that runs continuously. I would like
>to get its attention by hitting the <return> key. I can do
>it using signal(2) with SIGINT or SIGQUIT but I don't want
>to use interrupt or quit, and I couldn't figure out how to
>do it with <return>. Any help (preferably with e-mail) would
>be greatly appreciated.

If you are using BSD, why don't you use this instead:

#include <sys/ioctl.h>

int count;

 for (;;) {                      /* endless loop */
     ioctl(0,FIONREAD,&count);  
     if (count) { 
                     /* key was pressed */
                }
     else {
                /* nothing happened */
          }
 }

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