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/* $OpenBSD: copy.c,v 1.3 2003/06/02 23:28:20 millert Exp $ */
/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
/*static char sccsid[] = "from: @(#)copy.c 8.1 (Berkeley) 6/11/93";*/
static char rcsid[] = "$OpenBSD: copy.c,v 1.3 2003/06/02 23:28:20 millert Exp $";
#endif /* not lint */
#define BSIZE 10240
/*
* Copy from from to to. Intended for use in system installation.
*/
main()
{
extern int errno;
register int from, to, record, rcc, wcc, bsize = BSIZE;
char buf[BSIZE];
from = getfile("From", 0);
to = getfile("To", 1);
for (record = 0;; ++record) {
if (!(rcc = read(from, buf, bsize)))
break;
if (rcc < 0) {
printf("Record %d: read error, errno=%d\n",
record, errno);
break;
}
if (rcc != bsize) {
if (record == 0) {
bsize = rcc;
printf("Block size set from input; %d bytes\n",
bsize);
} else
printf("Record %d: read short; expected %d, got %d\n",
record, bsize, rcc);
}
#ifdef vax
/* For bug in ht driver. */
if (rcc > bsize)
rcc = bsize;
#endif
if ((wcc = write(to, buf, rcc)) < 0) {
printf("Record %d: write error: errno=%d\n",
record, errno);
break;
}
if (wcc < rcc) {
printf("Record %d: write short; expected %d, got %d\n",
record, rcc, wcc);
break;
}
}
printf("copy completed: %d records copied\n", record);
}
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