1 files changed, 71 insertions, 0 deletions
diff --git a/src/common.h b/src/common.h
new file mode 100644
index 0000000..52bff69
--- /dev/null
+++ b/src/common.h
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+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Common header
+ * Copyright (c) 2006-2019 Roy Marples <roy@marples.name>
+ * All rights reserved
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef COMMON_H
+#define COMMON_H
+
+#if __GNUC__ > 2 || defined(__INTEL_COMPILER)
+# ifndef __packed
+#  define __packed __attribute__((__packed__))
+# endif
+# ifndef __unused
+#  define __unused __attribute__((__unused__))
+# endif
+#else
+# ifndef __packed
+#  define __packed
+# endif
+# ifndef __unused
+#  define __unused
+# endif
+#endif
+
+/* Needed for rbtree(3) compat */
+#ifndef __RCSID
+#define __RCSID(a)
+#endif
+#ifndef __predict_false
+# if __GNUC__ > 2
+#  define	__predict_true(exp)	__builtin_expect((exp) != 0, 1)
+#  define	__predict_false(exp)	__builtin_expect((exp) != 0, 0)
+#else
+#  define	__predict_true(exp)	(exp)
+#  define	__predict_false(exp)	(exp)
+# endif
+#endif
+#ifndef __BEGIN_DECLS
+# if defined(__cplusplus)
+#  define	__BEGIN_DECLS		extern "C" {
+#  define	__END_DECLS		};
+# else /* __BEGIN_DECLS */
+#  define	__BEGIN_DECLS
+#  define	__END_DECLS
+# endif /* __BEGIN_DECLS */
+#endif /* __BEGIN_DECLS */
+
+#endif