1 /* $NetBSD: copy.c,v 1.11 2001/12/01 02:15:40 perry Exp $ */ 2 3 /*- 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)copy.c 8.1 (Berkeley) 6/11/93"; 45 #else 46 __RCSID("$NetBSD: copy.c,v 1.11 2001/12/01 02:15:40 perry Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #define BSIZE 10240 51 52 /* 53 * Copy from from to to. Intended for use in system installation. 54 */ 55 main() 56 { 57 extern int errno; 58 register int from, to, record, rcc, wcc, bsize = BSIZE; 59 char buf[BSIZE]; 60 61 from = getfile("From", 0); 62 to = getfile("To", 1); 63 for (record = 0;; ++record) { 64 if (!(rcc = read(from, buf, bsize))) 65 break; 66 if (rcc < 0) { 67 printf("Record %d: read error, errno=%d\n", 68 record, errno); 69 break; 70 } 71 if (rcc != bsize) { 72 if (record == 0) { 73 bsize = rcc; 74 printf("Block size set from input; %d bytes\n", 75 bsize); 76 } else 77 printf("Record %d: read short; expected %d, got %d\n", 78 record, bsize, rcc); 79 } 80 #ifdef __vax__ 81 /* For bug in ht driver. */ 82 if (rcc > bsize) 83 rcc = bsize; 84 #endif 85 if ((wcc = write(to, buf, rcc)) < 0) { 86 printf("Record %d: write error: errno=%d\n", 87 record, errno); 88 break; 89 } 90 if (wcc < rcc) { 91 printf("Record %d: write short; expected %d, got %d\n", 92 record, rcc, wcc); 93 break; 94 } 95 } 96 printf("copy completed: %d records copied\n", record); 97 } 98