[BusyBox] telnetd in kernel 2.6 segfaults (devfs)

[Ignacio García Pérez]

Hi,

I'm using busybox-1.00, with a minimal root filesystem. I use devfs.

If I load kernel 2.6.9, telnetd segfaults upon the first connection.

If I load kernel 2.4.29, telnetd runs file.

I have traced the problem down to the ptsname() call. Under kernel 2.4 it
returns "/dev/pts/0", while under kernel 2.6 it returns NULL. As telnetd
does not do error checking, hence the segfault.

I have devfs enabled in both kernels, and also the pty filesystem is enabled
(note that under kernel 2.6, open("/dev/ptmx") returns a valid handle).

Any clues?

Thanks.




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