X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=libsysio%2Finclude%2Fcreds.h;fp=libsysio%2Finclude%2Fcreds.h;h=672dfcfedc06edf9b3978fe670670a6c8e164340;hb=69b8a5830acdb9077455080cca10a9e9c4622c5d;hp=90305e1d305f294cb1cc56122d07f7427b97044a;hpb=9c1675244bee79ba7d544c15062ee6a1532b1203;p=fs%2Flustre-release.git

diff --git a/libsysio/include/creds.h b/libsysio/include/creds.h
index 90305e1..672dfcf 100644
--- a/libsysio/include/creds.h
+++ b/libsysio/include/creds.h
@@ -47,6 +47,11 @@
 #define _CREDS_H_
 
 /*
+ * Superuser's UID.
+ */
+#define _SYSIO_ROOT_UID	0
+
+/*
  * Data structure for user credentials
  */
 
@@ -56,4 +61,12 @@ struct creds {
 	int creds_ngids;
 };
 
+
+#ifdef _SYSIO_ROOT_UID
+/*
+ * Is caller the superuser?
+ */
+#define _sysio_is_root(_crp) \
+	((_crp)->creds_uid == _SYSIO_ROOT_UID)
+#endif
 #endif