copy.c revision 1.1 1 1.1 cgd /*-
2 1.1 cgd * Copyright (c) 1982, 1986, 1988 The Regents of the University of California.
3 1.1 cgd * All rights reserved.
4 1.1 cgd *
5 1.1 cgd * Redistribution and use in source and binary forms, with or without
6 1.1 cgd * modification, are permitted provided that the following conditions
7 1.1 cgd * are met:
8 1.1 cgd * 1. Redistributions of source code must retain the above copyright
9 1.1 cgd * notice, this list of conditions and the following disclaimer.
10 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
11 1.1 cgd * notice, this list of conditions and the following disclaimer in the
12 1.1 cgd * documentation and/or other materials provided with the distribution.
13 1.1 cgd * 3. All advertising materials mentioning features or use of this software
14 1.1 cgd * must display the following acknowledgement:
15 1.1 cgd * This product includes software developed by the University of
16 1.1 cgd * California, Berkeley and its contributors.
17 1.1 cgd * 4. Neither the name of the University nor the names of its contributors
18 1.1 cgd * may be used to endorse or promote products derived from this software
19 1.1 cgd * without specific prior written permission.
20 1.1 cgd *
21 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 1.1 cgd * SUCH DAMAGE.
32 1.1 cgd *
33 1.1 cgd * @(#)copy.c 7.7 (Berkeley) 5/21/91
34 1.1 cgd */
35 1.1 cgd
36 1.1 cgd #define BSIZE 10240
37 1.1 cgd
38 1.1 cgd /*
39 1.1 cgd * Copy from from to to. Intended for use in system installation.
40 1.1 cgd */
41 1.1 cgd main()
42 1.1 cgd {
43 1.1 cgd extern int errno;
44 1.1 cgd register int from, to, record, rcc, wcc, bsize = BSIZE;
45 1.1 cgd char buf[BSIZE];
46 1.1 cgd
47 1.1 cgd from = getfile("From", 0);
48 1.1 cgd to = getfile("To", 1);
49 1.1 cgd for (record = 0;; ++record) {
50 1.1 cgd if (!(rcc = read(from, buf, bsize)))
51 1.1 cgd break;
52 1.1 cgd if (rcc < 0) {
53 1.1 cgd printf("Record %d: read error, errno=%d\n",
54 1.1 cgd record, errno);
55 1.1 cgd break;
56 1.1 cgd }
57 1.1 cgd if (rcc != bsize) {
58 1.1 cgd if (record == 0) {
59 1.1 cgd bsize = rcc;
60 1.1 cgd printf("Block size set from input; %d bytes\n",
61 1.1 cgd bsize);
62 1.1 cgd } else
63 1.1 cgd printf("Record %d: read short; expected %d, got %d\n",
64 1.1 cgd record, bsize, rcc);
65 1.1 cgd }
66 1.1 cgd #ifdef vax
67 1.1 cgd /* For bug in ht driver. */
68 1.1 cgd if (rcc > bsize)
69 1.1 cgd rcc = bsize;
70 1.1 cgd #endif
71 1.1 cgd if ((wcc = write(to, buf, rcc)) < 0) {
72 1.1 cgd printf("Record %d: write error: errno=%d\n",
73 1.1 cgd record, errno);
74 1.1 cgd break;
75 1.1 cgd }
76 1.1 cgd if (wcc < rcc) {
77 1.1 cgd printf("Record %d: write short; expected %d, got %d\n",
78 1.1 cgd record, rcc, wcc);
79 1.1 cgd break;
80 1.1 cgd }
81 1.1 cgd }
82 1.1 cgd printf("copy completed: %d records copied\n", record);
83 1.1 cgd }
84