added stubs and a test for ctaocrypt compress

ctaocrypt/src/compress.c

@@ -0,0 +1,77 @@
+/* compress.c
+ *
+ * Copyright (C) 2006-2013 wolfSSL Inc.
+ *
+ * This file is part of CyaSSL.
+ *
+ * CyaSSL 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * CyaSSL 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+
+#ifdef HAVE_CONFIG_H
+    #include <config.h>
+#endif
+
+
+#ifdef HAVE_LIBZ
+
+
+#include <cyassl/ctaocrypt/compress.h>
+#include <cyassl/ctaocrypt/error.h>
+#include <cyassl/ctaocrypt/logging.h>
+#ifdef NO_INLINE
+    #include <cyassl/ctaocrypt/misc.h>
+#else
+    #include <ctaocrypt/src/misc.c>
+#endif
+
+
+int Compress(byte* out, word32 outSz, const byte* in, word32 inSz, word32 flags)
+/*
+ * out - pointer to destination buffer
+ * outSz - size of destination buffer
+ * in - pointer to source buffer to compress
+ * inSz - size of source to compress
+ * flags - flags to control how compress operates 
+ *
+ * return:
+ *    negative - error code
+ *    positive - bytes stored in out buffer
+ * 
+ * Note, the output buffer still needs to be larger than the input buffer.
+ * The right chunk of data won't compress at all, and the lookup table will
+ * add to the size of the output. The libz code says the compressed
+ * buffer should be srcSz + 0.1% + 12.
+ */
+{
+    word32 copySz = outSz <= inSz ? outSz : inSz;
+    (void)flags;
+    XMEMMOVE(out, in, copySz);
+
+    return (int)copySz;
+}
+
+
+int DeCompress(byte* out, word32 outSz, const byte* in, word32 inSz)
+{
+    word32 copySz = outSz <= inSz ? outSz : inSz;
+    XMEMMOVE(out, in, copySz);
+
+    return (int)copySz;
+}
+
+
+#endif /* HAVE_LIBZ */
+