1 /*- 2 * Copyright (c) 1982, 1986, 1988 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)copy.c 7.7 (Berkeley) 5/21/91 34 * $Id: copy.c,v 1.2 1993/05/20 03:53:57 cgd Exp $ 35 */ 36 37 #define BSIZE 10240 38 39 /* 40 * Copy from from to to. Intended for use in system installation. 41 */ 42 main() 43 { 44 extern int errno; 45 register int from, to, record, rcc, wcc, bsize = BSIZE; 46 char buf[BSIZE]; 47 48 from = getfile("From", 0); 49 to = getfile("To", 1); 50 for (record = 0;; ++record) { 51 if (!(rcc = read(from, buf, bsize))) 52 break; 53 if (rcc < 0) { 54 printf("Record %d: read error, errno=%d\n", 55 record, errno); 56 break; 57 } 58 if (rcc != bsize) { 59 if (record == 0) { 60 bsize = rcc; 61 printf("Block size set from input; %d bytes\n", 62 bsize); 63 } else 64 printf("Record %d: read short; expected %d, got %d\n", 65 record, bsize, rcc); 66 } 67 #ifdef vax 68 /* For bug in ht driver. */ 69 if (rcc > bsize) 70 rcc = bsize; 71 #endif 72 if ((wcc = write(to, buf, rcc)) < 0) { 73 printf("Record %d: write error: errno=%d\n", 74 record, errno); 75 break; 76 } 77 if (wcc < rcc) { 78 printf("Record %d: write short; expected %d, got %d\n", 79 record, rcc, wcc); 80 break; 81 } 82 } 83 printf("copy completed: %d records copied\n", record); 84 } 85