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The ikiwiki-mass-rebuild utility fails to drop privileges and fails to execute ikiwiki on FreeBSD.
The solution is to set the effective UID after setting the real UID, and to set $PATH in the environment before calling exec().
> Why does the PATH need to be reset? --[[Joey]]
Proposed patch:
--- ikiwiki-mass-rebuild.orig 2007-08-15 22:21:59.000000000 +0200
+++ ikiwiki-mass-rebuild 2007-10-25 13:04:10.000000000 +0200
@@ -22,13 +22,14 @@ sub processline {
my ($uuid, $ugid) = (getpwnam($user))[2, 3];
$)="$ugid $ugid";
$(=$ugid;
- $>=$uuid;
$<=$uuid;
+ $>=$uuid;
if ($< != $uuid || $> != $uuid || $( != $ugid || $) ne "$ugid $ugid") {
die "failed to drop permissions to $user";
}
%ENV=();
$ENV{HOME}=(getpwnam($user))[7];
+ $ENV{PATH}="/usr/bin:/usr/local/bin";
exec("ikiwiki", "-setup", $setup, @ARGV);
die "failed to run ikiwiki: $!";
}
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