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diff --git a/compat/snprintf.c b/compat/snprintf.c
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+/*---------------------------------------------------------------
+ * Copyright (c) 1999,2000,2001,2002,2003
+ * The Board of Trustees of the University of Illinois
+ * All Rights Reserved.
+ *---------------------------------------------------------------
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software (Iperf) and associated
+ * documentation files (the "Software"), to deal in the Software
+ * without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit
+ * persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ *
+ * Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and
+ * the following disclaimers.
+ *
+ *
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimers in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ *
+ * Neither the names of the University of Illinois, NCSA,
+ * nor the names of its contributors may be used to endorse
+ * or promote products derived from this Software without
+ * specific prior written permission.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * ________________________________________________________________
+ * National Laboratory for Applied Network Research
+ * National Center for Supercomputing Applications
+ * University of Illinois at Urbana-Champaign
+ * http://www.ncsa.uiuc.edu
+ * ________________________________________________________________
+ * Author: Mark Gates
+ *
+ * snprintf.c
+ *
+ * This is from
+ * W. Richard Stevens, 'UNIX Network Programming', Vol 1, 2nd Edition,
+ *   Prentice Hall, 1998.
+ *
+ *
+ * Throughout the book I use snprintf() because it's safer than sprintf().
+ * But as of the time of this writing, not all systems provide this
+ * function.  The function below should only be built on those systems
+ * that do not provide a real snprintf().
+ * The function below just acts like sprintf(); it is not safe, but it
+ * tries to detect overflow.
+ * ________________________________________________________________ */
+
+#ifdef HAVE_CONFIG_H
+    #include "config.h"
+#endif
+
+#ifndef HAVE_SNPRINTF
+
+    #include <stdlib.h>
+    #include <string.h>
+    #include <stdio.h>
+    #include <stdarg.h>
+
+    #include "snprintf.h"
+
+    #ifdef __cplusplus
+extern "C" {
+#endif
+
+int snprintf(char *buf, size_t size, const char *fmt, ...) {
+    int n;
+    va_list ap;
+
+    va_start(ap, fmt);
+    vsprintf(buf, fmt, ap); /* Sigh, some vsprintf's return ptr, not length */
+    n = strlen(buf);
+    va_end(ap);
+
+    if ( n >= size ) {
+        fprintf( stderr, "snprintf: overflowed array\n" );
+        exit(1);
+    }
+
+    return(n);
+}
+
+#ifdef __cplusplus
+} /* end extern "C" */
+    #endif
+
+#endif /* HAVE_SNPRINTF */