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diff --git a/src/util/sane_socketpair.h b/src/util/sane_socketpair.h
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+#ifndef _SANE_SOCKETPAIR_H_
+#define _SANE_SOCKETPAIR_H_
+
+/*++
+/* NAME
+/* sane_socketpair 3h
+/* SUMMARY
+/* sanitize socketpair() error returns
+/* SYNOPSIS
+/* #include <sane_socketpair.h>
+/* DESCRIPTION
+/* .nf
+
+ /* External interface. */
+
+extern int WARN_UNUSED_RESULT sane_socketpair(int, int, int, int *);
+
+/* 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
+/*
+/* Wietse Venema
+/* Google, Inc.
+/* 111 8th Avenue
+/* New York, NY 10011, USA
+/*--*/
+
+#endif