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+#ifndef _SAFE_H_INCLUDED_
+#define _SAFE_H_INCLUDED_
+
+/*++
+/* NAME
+/* safe 3h
+/* SUMMARY
+/* miscellaneous taint checks
+/* SYNOPSIS
+/* #include <safe.h>
+/* DESCRIPTION
+/* .nf
+
+ /* External interface. */
+
+extern int unsafe(void);
+extern char *safe_getenv(const char *);
+
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*--*/
+
+#endif