auto import from //depot/cupcake/@135843
diff --git a/toolbox/dd.h b/toolbox/dd.h
new file mode 100644
index 0000000..794a464
--- /dev/null
+++ b/toolbox/dd.h
@@ -0,0 +1,91 @@
+/* $NetBSD: dd.h,v 1.12 2004/01/17 20:48:57 dbj Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Keith Muller of the University of California, San Diego and Lance
+ * Visser of Convex Computer Corporation.
+ *
+ * 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ * @(#)dd.h 8.3 (Berkeley) 4/2/94
+ */
+
+/* Input/output stream state. */
+typedef struct {
+ u_char *db; /* buffer address */
+ u_char *dbp; /* current buffer I/O address */
+ uint64_t dbcnt; /* current buffer byte count */
+ int64_t dbrcnt; /* last read byte count */
+ uint64_t dbsz; /* buffer size */
+
+#define ISCHR 0x01 /* character device (warn on short) */
+#define ISPIPE 0x02 /* pipe (not truncatable) */
+#define ISTAPE 0x04 /* tape (not seekable) */
+#define NOREAD 0x08 /* not readable */
+ u_int flags;
+
+ const char *name; /* name */
+ int fd; /* file descriptor */
+ uint64_t offset; /* # of blocks to skip */
+} IO;
+
+typedef struct {
+ uint64_t in_full; /* # of full input blocks */
+ uint64_t in_part; /* # of partial input blocks */
+ uint64_t out_full; /* # of full output blocks */
+ uint64_t out_part; /* # of partial output blocks */
+ uint64_t trunc; /* # of truncated records */
+ uint64_t swab; /* # of odd-length swab blocks */
+ uint64_t sparse; /* # of sparse output blocks */
+ uint64_t bytes; /* # of bytes written */
+ struct timeval start; /* start time of dd */
+} STAT;
+
+/* Flags (in ddflags). */
+#define C_ASCII 0x00001
+#define C_BLOCK 0x00002
+#define C_BS 0x00004
+#define C_CBS 0x00008
+#define C_COUNT 0x00010
+#define C_EBCDIC 0x00020
+#define C_FILES 0x00040
+#define C_IBS 0x00080
+#define C_IF 0x00100
+#define C_LCASE 0x00200
+#define C_NOERROR 0x00400
+#define C_NOTRUNC 0x00800
+#define C_OBS 0x01000
+#define C_OF 0x02000
+#define C_SEEK 0x04000
+#define C_SKIP 0x08000
+#define C_SWAB 0x10000
+#define C_SYNC 0x20000
+#define C_UCASE 0x40000
+#define C_UNBLOCK 0x80000
+#define C_OSYNC 0x100000
+#define C_SPARSE 0x200000