1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. 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 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 /*static char sccsid[] = "from: @(#)copy.c 8.1 (Berkeley) 6/11/93";*/ 42 static char rcsid[] = "$NetBSD: copy.c,v 1.5 1994/06/29 06:43:28 cgd Exp $"; 43 #endif /* not lint */ 44 45 #define BSIZE 10240 46 47 /* 48 * Copy from from to to. Intended for use in system installation. 49 */ 50 main() 51 { 52 extern int errno; 53 register int from, to, record, rcc, wcc, bsize = BSIZE; 54 char buf[BSIZE]; 55 56 from = getfile("From", 0); 57 to = getfile("To", 1); 58 for (record = 0;; ++record) { 59 if (!(rcc = read(from, buf, bsize))) 60 break; 61 if (rcc < 0) { 62 printf("Record %d: read error, errno=%d\n", 63 record, errno); 64 break; 65 } 66 if (rcc != bsize) { 67 if (record == 0) { 68 bsize = rcc; 69 printf("Block size set from input; %d bytes\n", 70 bsize); 71 } else 72 printf("Record %d: read short; expected %d, got %d\n", 73 record, bsize, rcc); 74 } 75 #ifdef vax 76 /* For bug in ht driver. */ 77 if (rcc > bsize) 78 rcc = bsize; 79 #endif 80 if ((wcc = write(to, buf, rcc)) < 0) { 81 printf("Record %d: write error: errno=%d\n", 82 record, errno); 83 break; 84 } 85 if (wcc < rcc) { 86 printf("Record %d: write short; expected %d, got %d\n", 87 record, rcc, wcc); 88 break; 89 } 90 } 91 printf("copy completed: %d records copied\n", record); 92 } 93