freebsd-dev/bin/dd/dd.h
Matt Macy ce1b19d8c8 Add conv=fsync flag to dd
The fsync flag performs an fsync(2) on the output file before closing it.
This will be useful for the ZFS test suite.

Submitted by:	ryan@ixsystems.com
Reviewed by:	jilles@, imp@
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
2019-09-03 18:35:55 +00:00

111 lines
4.1 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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
* $FreeBSD$
*/
/* Input/output stream state. */
typedef struct {
u_char *db; /* buffer address */
u_char *dbp; /* current buffer I/O address */
ssize_t dbcnt; /* current buffer byte count */
ssize_t dbrcnt; /* last read byte count */
ssize_t dbsz; /* block size */
#define ISCHR 0x01 /* character device (warn on short) */
#define ISPIPE 0x02 /* pipe-like (see position.c) */
#define ISTAPE 0x04 /* tape */
#define ISSEEK 0x08 /* valid to seek on */
#define NOREAD 0x10 /* not readable */
#define ISTRUNC 0x20 /* valid to ftruncate() */
u_int flags;
const char *name; /* name */
int fd; /* file descriptor */
off_t offset; /* # of blocks to skip */
off_t seek_offset; /* offset of last seek past output hole */
} IO;
typedef struct {
uintmax_t in_full; /* # of full input blocks */
uintmax_t in_part; /* # of partial input blocks */
uintmax_t out_full; /* # of full output blocks */
uintmax_t out_part; /* # of partial output blocks */
uintmax_t trunc; /* # of truncated records */
uintmax_t swab; /* # of odd-length swab blocks */
uintmax_t bytes; /* # of bytes written */
struct timespec start; /* start time of dd */
} STAT;
/* Flags (in ddflags). */
#define C_ASCII 0x00000001
#define C_BLOCK 0x00000002
#define C_BS 0x00000004
#define C_CBS 0x00000008
#define C_COUNT 0x00000010
#define C_EBCDIC 0x00000020
#define C_FILES 0x00000040
#define C_IBS 0x00000080
#define C_IF 0x00000100
#define C_LCASE 0x00000200
#define C_NOERROR 0x00000400
#define C_NOTRUNC 0x00000800
#define C_OBS 0x00001000
#define C_OF 0x00002000
#define C_OSYNC 0x00004000
#define C_PAREVEN 0x00008000
#define C_PARNONE 0x00010000
#define C_PARODD 0x00020000
#define C_PARSET 0x00040000
#define C_SEEK 0x00080000
#define C_SKIP 0x00100000
#define C_SPARSE 0x00200000
#define C_SWAB 0x00400000
#define C_SYNC 0x00800000
#define C_UCASE 0x01000000
#define C_UNBLOCK 0x02000000
#define C_FILL 0x04000000
#define C_STATUS 0x08000000
#define C_NOXFER 0x10000000
#define C_NOINFO 0x20000000
#define C_PROGRESS 0x40000000
#define C_FSYNC 0x80000000
#define C_PARITY (C_PAREVEN | C_PARODD | C_PARNONE | C_PARSET)
#define BISZERO(p, s) ((s) > 0 && *((const char *)p) == 0 && !memcmp( \
(const void *)(p), (const void *) \
((const char *)p + 1), (s) - 1))