hubcap@hubcap.UUCP (Mike Marshall) (03/02/88)
Hi - here's a chunk of code from a program I once wrote... what is does is send an x-off to a terminal. I was using it to store up unredirectable stuff (like the output of mt, which is written directly to the controlling terminal, not stdout) in the terminal's output buffer (where ever that is) so that I could throw it away (by using ioctl to cram a buffer-flush char into the output stream, prior to sending an x-on). That works great, but now I wish my program could look at the stuff before I throw it away. Does anyone know how I might be able to look at the stuff stored in the terminal's output buffer? I didn't see any ioctls that would let me do that, but maybe I just didn't understand what the manual was telling me... thanks... Mike Marshall hubcap@hubcap.clemson.edu ...!hubcap!hubcap /* . send an XOFF to tty associated with this process... */ xoff(tty) int tty; { struct tchars t; /* get the terminal's special character set... */ if (ioctl(tty,(int)TIOCGETC,(char *)&t) == -1) { puts("ratmaw: unable to determine tty special chars. goodbye."); exit(-1); } /* send the XOFF... */ if (ioctl(tty,(int)TIOCSTI,(char *)&t.t_stopc) == -1) { puts("ratmaw: unable to XOFF. goodbye."); exit(-1); } }