Busybox missing /bin/false

[protogen]

On firmware versions 380.58 and 380.59, the symlink /bin/false does not exist and the busybox binary does not support false (but does support true).

I am puzzled by this, as /bin/false is usually used as the shell for non-user/daemon accounts (e.g. postfix, dovecot, httpd).

Can anyone shed light on why 'false' support is missing?

admin@router:~ # ls -la /bin/true
lrwxrwxrwx 1 admin root 7 Mar 21 08:12 /bin/true -> busybox
admin@router:~ # ls -la /bin/false
ls: cannot access /bin/false: No such file or directory

admin@router:~ # /bin/busybox true --help
BusyBox v1.20.2 (2016-03-20 15:54:28 EDT) multi-call binary.

Usage: true

Return an exit code of TRUE (0)

admin@router:~ # /bin/busybox false --help
false: applet not found

 

[RMerlin]

I am puzzled by this, as /bin/false is usually used as the shell for non-user/daemon accounts (e.g. postfix, dovecot, httpd).

Can anyone shed light on why 'false' support is missing?

Because the firmware itself does not need it.

 

[protogen]

Because the firmware itself does not need it.

Oh, okay. Well, that's a good enough reason.

Thanks for answering.