+
+/*
+ * Macros to raise/lower permissions.
+ */
+#define PRIV_START do { \
+ int save_errno = errno; \
+ (void)seteuid(original_effective_uid); \
+ errno = save_errno; \
+} while (0)
+
+#define PRIV_END do { \
+ int save_errno = errno; \
+ (void)seteuid(original_real_uid); \
+ errno = save_errno; \
+} while (0)
+