--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/modules/zip/libzip/lib/zip_fread.c	Wed Jun 01 17:36:52 2016 +0200
@@ -0,0 +1,63 @@
+/*
+  zip_fread.c -- read from file
+  Copyright (C) 1999-2014 Dieter Baron and Thomas Klausner
+
+  This file is part of libzip, a library to manipulate ZIP archives.
+  The authors can be contacted at <libzip@nih.at>
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in
+     the documentation and/or other materials provided with the
+     distribution.
+  3. The names of the authors may not be used to endorse or promote
+     products derived from this software without specific prior
+     written permission.
+ 
+  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
+  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#include "zipint.h"
+
+
+ZIP_EXTERN zip_int64_t
+zip_fread(zip_file_t *zf, void *outbuf, zip_uint64_t toread)
+{
+    zip_int64_t n;
+
+    if (!zf)
+	return -1;
+
+    if (zf->error.zip_err != 0)
+	return -1;
+
+    if (toread > ZIP_INT64_MAX) {
+	zip_error_set(&zf->error, ZIP_ER_INVAL, 0);
+	return -1;
+    }
+
+    if ((zf->eof) || (toread == 0))
+	return 0;
+
+    if ((n=zip_source_read(zf->src, outbuf, toread)) < 0) {
+	_zip_error_set_from_source(&zf->error, zf->src);
+	return -1;
+    }
+
+    return n;
+}