weston-launch: Clear environment and set it up from scratch

With recent systemd[1] XDG_VTNR will leak through to pam, which ends up
setting a vtnr pam argument with the wrong value.  The fix is to clear
XDG_VTNR first, but what we should have been doing all along is resetting
the environment.

Thanks to Ray Strode for helping debug this.

[1] http://cgit.freedesktop.org/systemd/systemd/commit/?id=a8573ccc35a4efe8900be5d48c6c803670540c2b
Kristian Høgsberg 12 years ago
parent c0d79ce2ba
commit 272d243e00
  1. 12
      src/weston-launch.c

@ -556,6 +556,12 @@ main(int argc, char *argv[])
if (wl.pw == NULL)
error(1, errno, "failed to get username");
clearenv();
setenv("USER", wl.pw->pw_name, 1);
setenv("LOGNAME", wl.pw->pw_name, 1);
setenv("HOME", wl.pw->pw_dir, 1);
setenv("SHELL", wl.pw->pw_shell, 1);
if (!weston_launch_allowed(&wl))
error(1, 0, "Permission denied. You should either:\n"
#ifdef HAVE_SYSTEMD_LOGIN
@ -605,12 +611,6 @@ main(int argc, char *argv[])
sleep(sleep_fork);
}
if (new_user) {
setenv("USER", wl.pw->pw_name, 1);
setenv("LOGNAME", wl.pw->pw_name, 1);
setenv("HOME", wl.pw->pw_dir, 1);
setenv("SHELL", wl.pw->pw_shell, 1);
}
env = pam_getenvlist(wl.ph);
if (env) {
for (i = 0; env[i]; ++i) {

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