Ignore MP_STATE_DIRECTORY in suid plugins

If a plugin still has suid privileges at the time np_enable_state() is
called, the MP_STATE_DIRECTORY environment will be ignored.

There is no need for a NEWS entry as no suid plugins use np_enable_state
yet.

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/utils_base.h b/lib/utils_base.h
index 86adecf8..b4bd92ee 100644
--- a/lib/utils_base.h
+++ b/lib/utils_base.h
@@ -102,4 +102,8 @@ void np_init(char *, int argc, char **argv);
 void np_set_args(int argc, char **argv);
 void np_cleanup();
 
+/* mp_suid() returns true if the real and effective uids differs, such as when
+ * running a suid plugin */
+#define mp_suid() (getuid() != geteuid())
+
 #endif /* _UTILS_BASE_ */