1 files changed, 21 insertions, 0 deletions
diff --git a/newlib/libc/string/strndup_r.c b/newlib/libc/string/strndup_r.c
new file mode 100644
index 000000000..86d9eec44
--- /dev/null
+++ b/newlib/libc/string/strndup_r.c
@@ -0,0 +1,21 @@
+#include <reent.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+
+char *
+_DEFUN (_strndup_r, (reent_ptr, str, n), 
+        struct _reent *reent_ptr  _AND
+        _CONST char   *str _AND
+        size_t n)
+{
+  size_t len = MIN(strlen (str), n);
+  char *copy = _malloc_r (reent_ptr, len + 1);
+  if (copy)
+    {
+      memcpy (copy, str, len);
+      copy[len] = '\0';
+    }
+  return copy;
+}