Encryption (and compression as plugins) support.

[dump.git] / common / transformation_null.c

diff --git a/common/transformation_null.c b/common/transformation_null.c
new file mode 100644 (file)
index 0000000..6f25752
--- /dev/null
+++ b/common/transformation_null.c
@@ -0,0 +1,94 @@
+#include <stdio.h>
+#include <config.h>
+
+#include "transformation.h"
+
+/*
+ * Initialize
+ */
+static int
+null_initialize(Transformation *xform, int enc)
+{
+       return 0;
+}
+
+/*
+ * Shut down.
+ */
+static int
+null_shutdown(Transformation *xform)
+{
+       return 0;
+}
+
+/*
+ * Handle fork.
+ */
+static int
+null_startNewTape(Transformation *xform, struct tapebuf *tpbin,
+       unsigned long *destlen)
+{
+       return 0;
+}
+
+/*
+ * Start slave process.
+ */
+static int
+null_startDiskIOProcess(Transformation *xform)
+{
+       return 0;
+}
+
+/*
+ * End slave process.
+ */
+static int
+null_endDiskIOProcess(Transformation *xform)
+{
+       return 0;
+}
+
+/*
+ * Compress a buffer.
+ */
+static int
+null_compress(Transformation *xform, struct tapebuf *tpbin, unsigned long *destlen,
+               const char *src, int srclen)
+{
+       memcpy(tpbin->buf, src, srclen);
+       *destlen = srclen;
+
+       return 1;
+}
+
+/*
+ * Decompress a buffer.
+ */
+static int
+null_decompress(Transformation *xform, struct tapebuf *tpbin, unsigned long *destlen,
+               const char *src, int srclen, char **reason)
+{
+       memcpy(tpbin->buf, src, srclen);
+       *destlen = srclen;
+
+       return 1;
+}
+
+/*
+ *
+ */
+Transformation transformation_null =
+{
+       0,
+       NULL,
+       "null",
+       0,
+       &null_initialize,
+       &null_shutdown,
+       &null_startNewTape,
+       &null_startDiskIOProcess,
+       &null_endDiskIOProcess,
+       &null_compress,
+       &null_decompress
+};