bin/dd/dd.h

   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: head/bin/dd/dd.h 341257 2018-11-29 19:28:01Z sobomax $
  37  */
  38
  39 #include <sys/time.h>
  40
  41 /* Input/output stream state. */
  42 typedef struct {
  43         u_char          *db;            /* buffer address */
  44         u_char          *dbp;           /* current buffer I/O address */
  45         ssize_t         dbcnt;          /* current buffer byte count */
  46         ssize_t         dbrcnt;         /* last read byte count */
  47         ssize_t         dbsz;           /* block size */
  48
  49 #define ISCHR           0x01            /* character device (warn on short) */
  50 #define ISPIPE          0x02            /* pipe-like (see position.c) */
  51 #define ISTAPE          0x04            /* tape */
  52 #define ISSEEK          0x08            /* valid to seek on */
  53 #define NOREAD          0x10            /* not readable */
  54 #define ISTRUNC         0x20            /* valid to ftruncate() */
  55         u_int           flags;
  56
  57         const char      *name;          /* name */
  58         int             fd;             /* file descriptor */
  59         off_t           offset;         /* # of blocks to skip */
  60         off_t           seek_offset;    /* offset of last seek past output hole */
  61 } IO;
  62
  63 typedef struct {
  64         uintmax_t       in_full;        /* # of full input blocks */
  65         uintmax_t       in_part;        /* # of partial input blocks */
  66         uintmax_t       out_full;       /* # of full output blocks */
  67         uintmax_t       out_part;       /* # of partial output blocks */
  68         uintmax_t       trunc;          /* # of truncated records */
  69         uintmax_t       swab;           /* # of odd-length swab blocks */
  70         uintmax_t       bytes;          /* # of bytes written */
  71         struct timespec start;          /* start time of dd */
  72 } STAT;
  73
  74 /* Flags (in ddflags). */
  75 #define C_ASCII         0x00000001
  76 #define C_BLOCK         0x00000002
  77 #define C_BS            0x00000004
  78 #define C_CBS           0x00000008
  79 #define C_COUNT         0x00000010
  80 #define C_EBCDIC        0x00000020
  81 #define C_FILES         0x00000040
  82 #define C_IBS           0x00000080
  83 #define C_IF            0x00000100
  84 #define C_LCASE         0x00000200
  85 #define C_NOERROR       0x00000400
  86 #define C_NOTRUNC       0x00000800
  87 #define C_OBS           0x00001000
  88 #define C_OF            0x00002000
  89 #define C_OSYNC         0x00004000
  90 #define C_PAREVEN       0x00008000
  91 #define C_PARNONE       0x00010000
  92 #define C_PARODD        0x00020000
  93 #define C_PARSET        0x00040000
  94 #define C_SEEK          0x00080000
  95 #define C_SKIP          0x00100000
  96 #define C_SPARSE        0x00200000
  97 #define C_SWAB          0x00400000
  98 #define C_SYNC          0x00800000
  99 #define C_UCASE         0x01000000
 100 #define C_UNBLOCK       0x02000000
 101 #define C_FILL          0x04000000
 102 #define C_STATUS        0x08000000
 103 #define C_NOXFER        0x10000000
 104 #define C_NOINFO        0x20000000
 105 #define C_PROGRESS      0x40000000
 106
 107 #define C_PARITY        (C_PAREVEN | C_PARODD | C_PARNONE | C_PARSET)
 108
 109 #define BISZERO(p, s)   ((s) > 0 && *((const char *)p) == 0 && \
 110                              !memcmp((const void *)(p), \
 111                                 (const void *)((const char *)p + 1), \
 112                                 (s) - 1))