Hello All,
Supose we do close(0) and the dup it to another file descripter to use the new file as the stdin input.

Is there anyway to restore the keyboard as the standard input in the same program
Thanks,
Majoni

Re: restoring stdin as keyboard 80 80

Make a copy of 0 using dup() before you close it, so that you can dup() it again to get back to it.

IIRC

keep = dup(0);
close(0);
dup(fd);  // fd is now stdin
close(0);
dup(keep); // back to original stdin
commented: Right +4
Re: restoring stdin as keyboard 80 80

Thanks
But isn't it stored atomatically by the kernel?

Re: restoring stdin as keyboard 80 80

Why would it be?

It doesn't mean a damn thing to the kernel, it's just an open file descriptor owned by a process.

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