Vendor import of OpenSSH.

1 files changed, 36 insertions, 0 deletions

diff --git a/crypto/openssh/uidswap.h b/crypto/openssh/uidswap.h
new file mode 100644
index 0000000..4755710
--- /dev/null
+++ b/crypto/openssh/uidswap.h
@@ -0,0 +1,36 @@
+/*
+ * 
+ * uidswap.h
+ * 
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * 
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ *                    All rights reserved
+ * 
+ * Created: Sat Sep  9 01:43:15 1995 ylo
+ * Last modified: Sat Sep  9 02:34:04 1995 ylo
+ * 
+ */
+
+#ifndef UIDSWAP_H
+#define UIDSWAP_H
+
+/*
+ * Temporarily changes to the given uid.  If the effective user id is not
+ * root, this does nothing.  This call cannot be nested.
+ */
+void    temporarily_use_uid(uid_t uid);
+
+/*
+ * Restores the original effective user id after temporarily_use_uid().
+ * This should only be called while temporarily_use_uid is effective.
+ */
+void    restore_uid();
+
+/*
+ * Permanently sets all uids to the given uid.  This cannot be called while
+ * temporarily_use_uid is effective.  This must also clear any saved uids.
+ */
+void    permanently_set_uid(uid_t uid);
+
+#endif				/* UIDSWAP_H */