--- /dev/null
+/*
+ * CU sudo version 1.6
+ * Copyright (c) 1999 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 1, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Please send bugs, changes, problems to sudo-bugs@courtesan.com
+ *
+ *******************************************************************
+ *
+ * This module emulates strerror(3) for those systems that lack it.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+
+#include "config.h"
+
+#ifndef HAVE_STRERROR
+
+#ifndef lint
+static const char rcsid[] = "$Sudo$";
+#endif /* lint */
+
+/*
+ * Map errno -> error string.
+ */
+char *
+strerror(n)
+ int n;
+{
+ extern int sys_nerr;
+ extern char *sys_errlist[];
+
+ if (n > 0 && n < sys_nerr)
+ return(sys_errlist[n]);
+ else
+ return("Unknown error");
+}
+
+#endif /* HAVE_STRERROR */