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Diffstat (limited to 'db2/common/db_byteorder.c')
-rw-r--r--db2/common/db_byteorder.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/db2/common/db_byteorder.c b/db2/common/db_byteorder.c
new file mode 100644
index 0000000000..d49883e093
--- /dev/null
+++ b/db2/common/db_byteorder.c
@@ -0,0 +1,56 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997
+ * Sleepycat Software. All rights reserved.
+ */
+
+#include "config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)db_byteorder.c 10.3 (Sleepycat) 6/21/97";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <errno.h>
+#endif
+
+#include "db_int.h"
+#include "common_ext.h"
+
+/*
+ * __db_byteorder --
+ * Return if we need to do byte swapping, checking for illegal
+ * values.
+ *
+ * PUBLIC: int __db_byteorder __P((DB_ENV *, int));
+ */
+int
+__db_byteorder(dbenv, lorder)
+ DB_ENV *dbenv;
+ int lorder;
+{
+ switch (lorder) {
+ case 0:
+ break;
+ case 1234:
+#if defined(WORDS_BIGENDIAN)
+ return (DB_SWAPBYTES);
+#else
+ break;
+#endif
+ case 4321:
+#if defined(WORDS_BIGENDIAN)
+ break;
+#else
+ return (DB_SWAPBYTES);
+#endif
+ default:
+ __db_err(dbenv,
+ "illegal byte order, only big and little-endian supported");
+ return (EINVAL);
+ }
+ return (0);
+}