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authorTony Finch <dot@dot.at>2006-05-22 18:42:34 +0000
committerTony Finch <dot@dot.at>2006-05-22 18:42:34 +0000
commit805e5aabc6e28e536153862bcef7268f84108fd7 (patch)
tree7cc5110c49bc126cad329096bdf5728566a33c86
parent2b965a652edced91a1af8bb36a33d493f721db7d (diff)
Call initgroups() when dropping privilege, in order that Exim runs with
consistent privilege.
-rw-r--r--doc/doc-txt/ChangeLog4
-rw-r--r--src/src/exim.c8
2 files changed, 8 insertions, 4 deletions
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 0a8f13749..4e8657a1f 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.352 2006/05/22 17:43:10 fanf2 Exp $
+$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.353 2006/05/22 18:44:24 fanf2 Exp $
Change log file for Exim from version 4.21
-------------------------------------------
@@ -20,6 +20,8 @@ SC/03 Collect data on the number of addresses (recipients) as well
TF/01 Correct an error in the documentation for the redirect router. Exim
does (usually) call initgroups() when daemonizing.
+TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs with
+ consistent privilege compared to when running as a daemon.
Exim version 4.62
-----------------
diff --git a/src/src/exim.c b/src/src/exim.c
index 9384cc192..41016ad3e 100644
--- a/src/src/exim.c
+++ b/src/src/exim.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/exim.c,v 1.38 2006/03/16 12:25:24 ph10 Exp $ */
+/* $Cambridge: exim/src/src/exim.c,v 1.39 2006/05/22 18:42:34 fanf2 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
@@ -3597,7 +3597,9 @@ root privilege above as a result of -C, -D, -be, -bf or -bF, remove it now
except when starting the daemon or doing some kind of delivery or address
testing (-bt). These are the only cases when root need to be retained. We run
as exim for -bv and -bh. However, if deliver_drop_privilege is set, root is
-retained only for starting the daemon. */
+retained only for starting the daemon. We always do the initgroups() in this
+situation (controlled by the TRUE below), in order to be as close as possible
+to the state Exim usually runs in. */
if (!unprivileged && /* originally had root AND */
!removed_privilege && /* still got root AND */
@@ -3613,7 +3615,7 @@ if (!unprivileged && /* originally had root AND */
)
))
{
- exim_setugid(exim_uid, exim_gid, FALSE, US"privilege not needed");
+ exim_setugid(exim_uid, exim_gid, TRUE, US"privilege not needed");
}
/* When we are retaining a privileged uid, we still change to the exim gid. */