1 files changed, 60 insertions, 0 deletions
diff --git a/contrib/sendmail/libsmutil/snprintf.c b/contrib/sendmail/libsmutil/snprintf.c
new file mode 100644
index 000000000000..e11a92162eea
--- /dev/null
+++ b/contrib/sendmail/libsmutil/snprintf.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 1998-2001 Proofpoint, Inc. and its suppliers.
+ *	All rights reserved.
+ * Copyright (c) 1997 Eric P. Allman.  All rights reserved.
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the sendmail distribution.
+ *
+ */
+
+#include <sendmail.h>
+
+SM_RCSID("@(#)$Id: snprintf.c,v 8.45 2013-11-22 20:51:50 ca Exp $")
+
+/*
+**  SHORTENSTRING -- return short version of a string
+**
+**	If the string is already short, just return it.  If it is too
+**	long, return the head and tail of the string.
+**
+**	Parameters:
+**		s -- the string to shorten.
+**		m -- the max length of the string (strlen()).
+**
+**	Returns:
+**		Either s or a short version of s.
+*/
+
+char *
+shortenstring(s, m)
+	register const char *s;
+	size_t m;
+{
+	size_t l;
+	static char buf[MAXSHORTSTR + 1];
+
+	l = strlen(s);
+	if (l < m)
+		return (char *) s;
+	if (m > MAXSHORTSTR)
+		m = MAXSHORTSTR;
+	else if (m < 10)
+	{
+		if (m < 5)
+		{
+			(void) sm_strlcpy(buf, s, m + 1);
+			return buf;
+		}
+		(void) sm_strlcpy(buf, s, m - 2);
+		(void) sm_strlcat(buf, "...", sizeof buf);
+		return buf;
+	}
+	m = (m - 3) / 2;
+	(void) sm_strlcpy(buf, s, m + 1);
+	(void) sm_strlcat2(buf, "...", s + l - m, sizeof buf);
+	return buf;
+}