sxt: core: added few errnos for sxt;

include/sxt/errno.h

@@ -0,0 +1,36 @@
+/*
+ * Secure eXtended Message Passing framework
+ * Secure eXtended Transport layer implementation: (libsxt)
+ * - very similar to SSH2/TLS
+ * - using already proven and tested crypto algos
+ * - better than TLS for message passing
+ *
+ *
+ * (c) Alexander Vdolainen 2016 <avdolainen@zoho.com>
+ *
+ * libsxmp is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libsxmp 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.";
+ *
+ */
+
+#ifndef __SXT_ERRNO_H__
+#define __SXT_ERRNO_H__
+
+#define SXT_SUCCESS     (SXT_EBASESHIFT - SXT_EBASESHIFT)
+#define SXT_EBASESHIFT  300
+
+#define SXT_ECRYPTO     (SXT_EBASESHIFT + 12)
+#define SXT_EINVAL      (SXT_EBASESHIFT + 22)
+#define SXT_ENOMEM      (SXT_EBASESHIFT + 42)
+
+#endif /* __SXT_ERRNO_H__ */