set default newlib dir's structure

git-svn-id: svn://kolibrios.org@4874 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/newlib/libc/string/strndup_r.c

@@ -0,0 +1,27 @@
+#include <reent.h>
+#include <stdlib.h>
+#include <string.h>
+
+char *
+_DEFUN (_strndup_r, (reent_ptr, str, n), 
+        struct _reent *reent_ptr  _AND
+        _CONST char   *str _AND
+        size_t n)
+{
+  _CONST char *ptr = str;
+  size_t len;
+  char *copy;
+
+  while (n-- > 0 && *ptr)
+    ptr++;
+
+  len = ptr - str;
+
+  copy = _malloc_r (reent_ptr, len + 1);
+  if (copy)
+    {
+      memcpy (copy, str, len);
+      copy[len] = '\0';
+    }
+  return copy;
+}