1 files changed, 100 insertions, 0 deletions
diff --git a/debian/htdig/htdig-3.2.0b6/db/db_upgrade.c b/debian/htdig/htdig-3.2.0b6/db/db_upgrade.c
new file mode 100644
index 00000000..f34541c2
--- /dev/null
+++ b/debian/htdig/htdig-3.2.0b6/db/db_upgrade.c
@@ -0,0 +1,100 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997, 1998, 1999
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "db_config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)db_upgrade.c	11.3 (Sleepycat) 10/20/99";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <errno.h>
+#endif
+
+#include "db_int.h"
+#include "db_page.h"
+#include "db_swap.h"
+#include "btree.h"
+#include "hash.h"
+#include "qam.h"
+
+/*
+ * CDB___db_upgrade --
+ *	Upgrade an existing database.
+ *
+ * PUBLIC: int CDB___db_upgrade __P((DB *, const char *, u_int32_t));
+ */
+int
+CDB___db_upgrade(dbp, fname, flags)
+	DB *dbp;
+	const char *fname;
+	u_int32_t flags;
+{
+	DB_ENV *dbenv;
+	DB_FH fh;
+	ssize_t nr;
+	int ret, swapped, t_ret;
+	char *real_name, mbuf[256];
+
+	dbenv = dbp->dbenv;
+
+	/* Validate arguments. */
+	if ((ret = CDB___db_fchk(dbenv, "DB->upgrade", flags, 0)) != 0)
+		return (ret);
+
+	/* Get the real backing file name. */
+	if ((ret = CDB___db_appname(dbenv,
+	    DB_APP_DATA, NULL, fname, 0, NULL, &real_name)) != 0)
+		return (ret);
+
+	/* Open the file. */
+	if ((ret = CDB___os_open(real_name, 0, 0, &fh)) != 0) {
+		CDB___db_err(dbenv, "%s: %s", fname, CDB_db_strerror(ret));
+		return (ret);
+	}
+
+	/*
+	 * Read the metadata page.  We read 256 bytes, which is larger than
+	 * any access method's metadata page and smaller than any disk sector.
+	 */
+	if ((ret = CDB___os_read(&fh, mbuf, sizeof(mbuf), &nr)) != 0)
+		goto err;
+
+	swapped = 0;
+retry:	switch (((DBMETA *)mbuf)->magic) {
+	case DB_BTREEMAGIC:
+		if ((ret =
+		    CDB___bam_upgrade(dbp, swapped, real_name, &fh, mbuf)) != 0)
+			goto err;
+		break;
+	case DB_HASHMAGIC:
+		if ((ret =
+		    CDB___ham_upgrade(dbp, swapped, real_name, &fh, mbuf)) != 0)
+			goto err;
+		break;
+	case DB_QAMMAGIC:
+		break;
+	default:
+		if (swapped++) {
+			CDB___db_err(dbenv, "%s: unrecognized file type", fname);
+			ret = EINVAL;
+			goto err;
+		}
+
+		M_32_SWAP(((DBMETA *)mbuf)->magic);
+		M_32_SWAP(((DBMETA *)mbuf)->version);
+		goto retry;
+	}
+
+err:	if ((t_ret = CDB___os_closehandle(&fh)) != 0 && ret == 0)
+		ret = t_ret;
+	CDB___os_freestr(real_name);
+
+	return (ret);
+}