From d7db70c929c3f93be71e711b40b0481b3755d15a Mon Sep 17 00:00:00 2001
From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
Date: Thu, 25 Jun 2015 13:24:52 +0000
Subject: [PATCH] Add missing file from CMake patch set.

---
 port/snprintf.c | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 port/snprintf.c

diff --git a/port/snprintf.c b/port/snprintf.c
new file mode 100644
index 00000000..ddbf6581
--- /dev/null
+++ b/port/snprintf.c
@@ -0,0 +1,37 @@
+/**
+ * Workaround for lack of snprintf(3) in Visual Studio.  See
+ * http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010/8712996#8712996
+ * It's a trivial wrapper around the builtin _vsnprintf_s and
+ * _vscprintf functions.
+ */
+
+#ifdef _MSC_VER
+
+#include <stdio.h>
+#include <stdarg.h>
+
+int vsnprintf(char* str, size_t size, const char* format, va_list ap)
+{
+  int count = -1;
+
+  if (size != 0)
+    count = _vsnprintf_s(str, size, _TRUNCATE, format, ap);
+  if (count == -1)
+    count = _vscprintf(format, ap);
+
+  return count;
+}
+
+int snprintf(char* str, size_t size, const char* format, ...)
+{
+  int count;
+  va_list ap;
+
+  va_start(ap, format);
+  count = vsnprintf(str, size, format, ap);
+  va_end(ap);
+
+  return count;
+}
+
+#endif // _MSC_VER