2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1991, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Keith Muller of the University of California, San Diego and Lance
9 * Visser of Convex Computer Corporation.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * @(#)dd.h 8.3 (Berkeley) 4/2/94
39 /* Input/output stream state. */
41 u_char *db; /* buffer address */
42 u_char *dbp; /* current buffer I/O address */
43 ssize_t dbcnt; /* current buffer byte count */
44 ssize_t dbrcnt; /* last read byte count */
45 ssize_t dbsz; /* block size */
47 #define ISCHR 0x01 /* character device (warn on short) */
48 #define ISPIPE 0x02 /* pipe-like (see position.c) */
49 #define ISTAPE 0x04 /* tape */
50 #define ISSEEK 0x08 /* valid to seek on */
51 #define NOREAD 0x10 /* not readable */
52 #define ISTRUNC 0x20 /* valid to ftruncate() */
55 const char *name; /* name */
56 int fd; /* file descriptor */
57 off_t offset; /* # of blocks to skip */
58 off_t seek_offset; /* offset of last seek past output hole */
62 uintmax_t in_full; /* # of full input blocks */
63 uintmax_t in_part; /* # of partial input blocks */
64 uintmax_t out_full; /* # of full output blocks */
65 uintmax_t out_part; /* # of partial output blocks */
66 uintmax_t trunc; /* # of truncated records */
67 uintmax_t swab; /* # of odd-length swab blocks */
68 uintmax_t bytes; /* # of bytes written */
69 struct timespec start; /* start time of dd */
72 /* Flags (in ddflags). */
73 #define C_ASCII 0x0000000000000001ULL
74 #define C_BLOCK 0x0000000000000002ULL
75 #define C_BS 0x0000000000000004ULL
76 #define C_CBS 0x0000000000000008ULL
77 #define C_COUNT 0x0000000000000010ULL
78 #define C_EBCDIC 0x0000000000000020ULL
79 #define C_FILES 0x0000000000000040ULL
80 #define C_IBS 0x0000000000000080ULL
81 #define C_IF 0x0000000000000100ULL
82 #define C_LCASE 0x0000000000000200ULL
83 #define C_NOERROR 0x0000000000000400ULL
84 #define C_NOTRUNC 0x0000000000000800ULL
85 #define C_OBS 0x0000000000001000ULL
86 #define C_OF 0x0000000000002000ULL
87 #define C_OSYNC 0x0000000000004000ULL
88 #define C_PAREVEN 0x0000000000008000ULL
89 #define C_PARNONE 0x0000000000010000ULL
90 #define C_PARODD 0x0000000000020000ULL
91 #define C_PARSET 0x0000000000040000ULL
92 #define C_SEEK 0x0000000000080000ULL
93 #define C_SKIP 0x0000000000100000ULL
94 #define C_SPARSE 0x0000000000200000ULL
95 #define C_SWAB 0x0000000000400000ULL
96 #define C_SYNC 0x0000000000800000ULL
97 #define C_UCASE 0x0000000001000000ULL
98 #define C_UNBLOCK 0x0000000002000000ULL
99 #define C_FILL 0x0000000004000000ULL
100 #define C_STATUS 0x0000000008000000ULL
101 #define C_NOXFER 0x0000000010000000ULL
102 #define C_NOINFO 0x0000000020000000ULL
103 #define C_PROGRESS 0x0000000040000000ULL
104 #define C_FSYNC 0x0000000080000000ULL
105 #define C_FDATASYNC 0x0000000100000000ULL
106 #define C_OFSYNC 0x0000000200000000ULL
107 #define C_IFULLBLOCK 0x0000000400000000ULL
108 #define C_IDIRECT 0x0000000800000000ULL
109 #define C_ODIRECT 0x0000001000000000ULL
111 #define C_PARITY (C_PAREVEN | C_PARODD | C_PARNONE | C_PARSET)
113 #define BISZERO(p, s) ((s) > 0 && *((const char *)p) == 0 && !memcmp( \
114 (const void *)(p), (const void *) \
115 ((const char *)p + 1), (s) - 1))