The root issue doesn't happen with Ubuntu or SuSe installations so I
think it may be specific to your system, your distribution or how
mplayer has been installed.
My system is slackware 12, stock kernel; mplayer has no set uid/gid
flags.
If it works on other Linux distros then I guess it must be down to
different compilation options the distros use for the kernels.
Unfortunately I don't have the time to look through the slimserver code
in detail, but on slackware setting the real uid & gid solves the
problem, as per the patch below.
*** slimserver.pl.orig 2009-07-25 14:38:12.000000000 +0100
--- slimserver.pl 2009-07-25 15:26:35.000000000 +0100
***************
*** 879,885 ****
# $) = "1234 1234"
undef $!;
! $) = "$pgid $pgid " . join (" ", @sgids);
if ( $! ) {
die "Unable to set effective group(s) to $group ($gid) is: $):
$!\n";
--- 879,887 ----
# $) = "1234 1234"
undef $!;
! #$) = "$pgid $pgid " . join (" ", @sgids);
! # and real groups
! $( = $) = "$pgid $pgid " . join (" ", @sgids);
if ( $! ) {
die "Unable to set effective group(s) to $group ($gid) is: $):
$!\n";
***************
*** 888,894 ****
# Finally, change effective user id.
undef $!;
! $> = $uid;
if ( $! ) {
die "Unable to set effective user to $user, ($uid)!\n";
--- 890,898 ----
# Finally, change effective user id.
undef $!;
! #$> = $uid;
! # AND real uid (so child processes also have this uid)
! $< = $> = $uid;
if ( $! ) {
die "Unable to set effective user to $user, ($uid)!\n";
--
slackgraham
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