1 files changed, 60 insertions, 0 deletions
diff --git a/db2/os/db_os_lseek.c b/db2/os/db_os_lseek.c
new file mode 100644
index 0000000000..cecf0e156b
--- /dev/null
+++ b/db2/os/db_os_lseek.c
@@ -0,0 +1,60 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1997
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)db_os_lseek.c	10.3 (Sleepycat) 6/28/97";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <errno.h>
+#include <unistd.h>
+#endif
+
+#include "db_int.h"
+#include "os_ext.h"
+
+/*
+ * __db_lseek --
+ *	Seek to a page/byte offset in the file.
+ *
+ * PUBLIC: int __db_lseek __P((int, size_t, db_pgno_t, u_long, int));
+ */
+int
+__db_lseek(fd, pgsize, pageno, relative, whence)
+	int fd;
+	size_t pgsize;
+	db_pgno_t pageno;
+	u_long relative;
+	int whence;
+{
+	/* 64-bit offsets are done differently by different vendors. */
+#undef	__LSEEK_SET
+#ifdef	HAVE_LLSEEK
+#define	__LSEEK_SET
+	offset_t offset;			/* Solaris. */
+
+	offset = pgsize * pageno + relative;
+	return (llseek(fd, offset, whence) == -1 ? errno : 0);
+#endif
+#ifdef	HAVE_LSEEKI
+#define	__LSEEK_SET
+	__int64 offset;				/* WNT */
+
+	offset = pgsize * pageno + relative;
+	return (_lseeki64(fd, offset, whence) == -1 ? errno : 0);
+#endif
+#ifndef	__LSEEK_SET
+	off_t offset;				/* Default. */
+
+	offset = pgsize * pageno + relative;
+	return (lseek(fd, offset, whence) == -1 ? errno : 0);
+#endif
+}