[ILUG] C Questions

[John Allen]

William Murphy wrote:

> Hi all,
>
> Just having one or two problems writing  a little network daemon:
>
> 1. Most programs in the inetutils distribution seem to lose their
> controlling terminals as follows:
>
>     int    tty = open( "/dev/tty", O_RDWR );
>     ioctl( tty, TIOCNOTTY );
>     close( tty );
>
> All of the function calls proceed successfully, but the program stays in
> the foreground. The alternative of fork()ing seems kinda like cheating.
> Any ideas?
>

fork(), it's less messy.

>
> 2. I want the program to listen on a given port on all network
> interfaces. Programs running under inetd do this, but my program is
> standalone.
> Other standalone daemons seem to do this. Obviously when one binds to a
> local address, it only listens on the interface to which that address
> belongs, eg if i bind with the address 127.0.0.1, then my program won't
> listen on my ethernet card's address.
>

Don't bind to a specific network address, use INADDR_ANY.

>
> Thanks in advance,
> William Murphy
> <alias at student.nuigalway.ie>
>
> --
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