[uClibc]Job Control on /dev/console

[Andrew May]

I get the "job control turned off" print when I start a shell on /dev/console,
on my PPC405 system.

The tty command returns /dev/console. I don't know how to set inittab to spawn
off a getty for /dev/console, so I just spawn off a shell.

I think the code below is what does the print, and it does seem strange to
me.

if( initialpgrp < 0 ){
	...
	return;
}
if( initialpgrp == -1 )
	/* never going to get here*/


=====================================================================
static void setjobctl(int enable) {
	if (enable == jobctl || rootshell == 0)
		return;
	if (enable) {
		do { /* while we are in the background */
			initialpgrp = tcgetpgrp(2);
			if (initialpgrp < 0) {
				out2str("sh: can't access tty; job control turned off\n");
				mflag = 0;
				return;
			}
			if (initialpgrp == -1)
				initialpgrp = getpgrp();
			else if (initialpgrp != getpgrp()) {
				killpg(initialpgrp, SIGTTIN);
				continue;
			}
		} while (0);