chroot and login

["Gavin Woodhatch" <gavin cafe ch>]

Hi Guys

I know this is not quite Alpha specific .. but i do want it working on
my AS500 :)

I am Trying to do the following  .. when you login as a specific user
I would like to have a chroot shell up .. so my customers cant wrek to
mutch havok  ..

The command 'chroot /usr/local/telnetroot' works fine.

If i add '/usr/bin/chroot /usr/local/telnetroot' to  /etc/passwd (as
shell)
It does not work ,even after adding '/usr/bin/chroot' to /etc/shells  ..
doesnt help

I have come to the conclusion that Login can't handel any  parameters ?

So i have tried my (very bad ) C knowlege  :

#include <unistd.h>
    void main(int argc, char * argv[]) {
    chroot("/usr/local/telnetlogin");
    execl("/bin/bash",0);
}

compiled with gcc .  no errors ..

but when executing the binary  : Segmentation Fault

Using  :
#include <unistd.h>
    void main(int argc, char * argv[]) {
    chroot("/usr/local/telnetlogin");
    execl("/bin/bash","/bin/bash",0);
}

gcc no errors again  ..

this time it works .... i get a new shell .. but the chroot part does
not work ..
it returns a value of '-1' thats means an error acurred .. but i dont
know what..


Any ideas  ?


Gavin Woodhatch