1 files changed, 41 insertions, 0 deletions
diff --git a/src/util/safe_getenv.c b/src/util/safe_getenv.c
new file mode 100644
index 0000000..04ca659
--- /dev/null
+++ b/src/util/safe_getenv.c
@@ -0,0 +1,41 @@
+/*++
+/* NAME
+/*	safe_getenv 3
+/* SUMMARY
+/*	guarded getenv()
+/* SYNOPSIS
+/*	#include <safe.h>
+/*
+/*	char	*safe_getenv(const name)
+/*	char	*name;
+/* DESCRIPTION
+/*	The \fBsafe_getenv\fR() routine reads the named variable from the
+/*	environment, provided that the unsafe() routine agrees.
+/* SEE ALSO
+/*	unsafe(3), detect non-user privileges
+/* 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
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <stdlib.h>
+
+/* Utility library. */
+
+#include "safe.h"
+
+/* safe_getenv - read environment variable with guard */
+
+char   *safe_getenv(const char *name)
+{
+    return (unsafe() == 0 ? getenv(name) : 0);
+}