1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1991, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 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. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 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. 22 * 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 33 * SUCH DAMAGE. 34 * 35 * @(#)dd.h 8.3 (Berkeley) 4/2/94 36 * $FreeBSD$ 37 */ 38 39 /* Input/output stream state. */ 40 typedef struct { 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 */ 46 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() */ 53 u_int flags; 54 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 */ 59 } IO; 60 61 typedef struct { 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 */ 70 } STAT; 71 72 /* Flags (in ddflags). */ 73 #define C_ASCII 0x00000001 74 #define C_BLOCK 0x00000002 75 #define C_BS 0x00000004 76 #define C_CBS 0x00000008 77 #define C_COUNT 0x00000010 78 #define C_EBCDIC 0x00000020 79 #define C_FILES 0x00000040 80 #define C_IBS 0x00000080 81 #define C_IF 0x00000100 82 #define C_LCASE 0x00000200 83 #define C_NOERROR 0x00000400 84 #define C_NOTRUNC 0x00000800 85 #define C_OBS 0x00001000 86 #define C_OF 0x00002000 87 #define C_OSYNC 0x00004000 88 #define C_PAREVEN 0x00008000 89 #define C_PARNONE 0x00010000 90 #define C_PARODD 0x00020000 91 #define C_PARSET 0x00040000 92 #define C_SEEK 0x00080000 93 #define C_SKIP 0x00100000 94 #define C_SPARSE 0x00200000 95 #define C_SWAB 0x00400000 96 #define C_SYNC 0x00800000 97 #define C_UCASE 0x01000000 98 #define C_UNBLOCK 0x02000000 99 #define C_FILL 0x04000000 100 #define C_STATUS 0x08000000 101 #define C_NOXFER 0x10000000 102 #define C_NOINFO 0x20000000 103 #define C_PROGRESS 0x40000000 104 105 #define C_PARITY (C_PAREVEN | C_PARODD | C_PARNONE | C_PARSET) 106 107 #define BISZERO(p, s) ((s) > 0 && *((const char *)p) == 0 && !memcmp( \ 108 (const void *)(p), (const void *) \ 109 ((const char *)p + 1), (s) - 1)) 110