1 files changed, 54 insertions, 0 deletions
diff --git a/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc b/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc
new file mode 100644
index 00000000000..a44f3f4573b
--- /dev/null
+++ b/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc
@@ -0,0 +1,54 @@
+// natVMSecureRandomPosix.cc - Native part of VMSecureRandom class for POSIX.
+
+/* Copyright (C) 2009 Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include <gcj/cni.h>
+#include <java/lang/InternalError.h>
+#include <gnu/java/security/jce/prng/VMSecureRandom.h>
+
+jint
+gnu::java::security::jce::prng::VMSecureRandom::natGenerateSeed(jbyteArray byte_array, jint offset, jint length)
+{
+  int a, fd;
+  jbyte *bytes = elements (byte_array);
+  ssize_t count;
+
+  for (a = 0; a < offset; ++a)
+    bytes++;
+  fd = open ("/dev/random", O_RDONLY);
+  
+  if (fd == -1)
+    {
+      jstring oserr = JvNewStringLatin1 (strerror (errno));
+      throw new ::java::lang::InternalError 
+	(JvNewStringLatin1 ("Error opening /dev/random: ")->concat(oserr));
+    }
+
+  count = read (fd, bytes, length);
+  close (fd);
+
+  if (count == -1)
+    {
+      jstring oserr = JvNewStringLatin1 (strerror (errno));
+      throw new ::java::lang::InternalError 
+	(JvNewStringLatin1 ("Error reading /dev/random: ")->concat(oserr));
+    }
+
+  return count;
+}
+