src/solaris/native/sun/nio/fs/UnixNativeDispatcher.c

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -365,10 +365,24 @@
     if (fclose(fp) == EOF && errno != EINTR) {
         throwUnixException(env, errno);
     }
 }
 
+JNIEXPORT void JNICALL
+Java_sun_nio_fs_UnixNativeDispatcher_rewind(JNIEnv* env, jclass this, jlong stream)
+{
+    FILE* fp = jlong_to_ptr(stream);
+    int saved_errno;
+
+    errno = 0;
+    rewind(fp);
+    saved_errno = errno;
+    if (ferror(fp)) {
+        throwUnixException(env, saved_errno);
+    }
+}
+
 JNIEXPORT jint JNICALL
 Java_sun_nio_fs_UnixNativeDispatcher_open0(JNIEnv* env, jclass this,
     jlong pathAddress, jint oflags, jint mode)
 {
     jint fd;