Peter Hutterer
34be0608c7
The current code works if pw->pw_shell is bash because:
"If the shell is started with the effective user (group) id not equal to
the real user (group) id, and the -p option is not supplied, these actions
are taken and the effective user id is set to the real user id."
Thus, for bash, weston's EUID == UID.
For zsh, the -p option "is enabled automatically on startup if the effective
user (group) ID is not equal to the real user (group) ID."
Thus, weston's EUID = 0, and if pw_shell is zsh, /run/user/$UID/wayland-0 is
created with euid root and not writeable by the user, causing all clients to
fail.
Fix this by always dropping privileges to the user.
Regression introduced in 636156d.
Weston Weston is the reference implementation of a Wayland compositor, and a useful compositor in its own right. Weston has various backends that lets it run on Linux kernel modesetting and evdev input as well as under X11. Weston ships with a few example clients, from simple clients that demonstrate certain aspects of the protocol to more complete clients and a simplistic toolkit. There is also a quite capable terminal emulator (weston-terminal) and an toy/example desktop shell. Finally, weston also provides integration with the Xorg server and can pull X clients into the Wayland desktop and act as a X window manager. Refer to http://wayland.freedesktop.org/building.html for buiding weston and its dependencies.