From 7410d3c6d6a9a1cd7aa55083c938946af6ff9498 Mon Sep 17 00:00:00 2001
From: Rene Mayrhofer <rene@mayrhofer.eu.org>
Date: Wed, 21 Oct 2009 11:14:02 +0000
Subject: [svn-upgrade] Integrating new upstream version, strongswan (4.3.4)

---
 src/libstrongswan/chunk.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'src/libstrongswan/chunk.c')

diff --git a/src/libstrongswan/chunk.c b/src/libstrongswan/chunk.c
index c9c181f87..40a93e21a 100644
--- a/src/libstrongswan/chunk.c
+++ b/src/libstrongswan/chunk.c
@@ -19,6 +19,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <errno.h>
+#include <ctype.h>
 
 #include "chunk.h"
 
@@ -441,6 +442,32 @@ int chunk_compare(chunk_t a, chunk_t b)
 	return memcmp(a.ptr, b.ptr, len);
 };
 
+/**
+ * Remove non-printable characters from a chunk.
+ */
+bool chunk_printable(chunk_t chunk, chunk_t *sane, char replace)
+{
+	bool printable = TRUE;
+	int i;
+	
+	if (sane)
+	{
+		*sane = chunk_clone(chunk);
+	}
+	for (i = 0; i < chunk.len; i++)
+	{
+		if (!isprint(chunk.ptr[i]))
+		{
+			if (sane)
+			{
+				sane->ptr[i] = replace;
+			}
+			printable = FALSE;
+		}
+	}
+	return printable;
+}
+
 /**
  * Described in header.
  * 
-- 
cgit v1.2.3