1 /* $NetBSD: copy.c,v 1.14 2009/03/18 10:22:45 cegger 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)copy.c 8.1 (Berkeley) 6/11/93"; 41 #else 42 __RCSID("$NetBSD: copy.c,v 1.14 2009/03/18 10:22:45 cegger Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #define BSIZE 10240 47 48 /* 49 * Copy from from to to. Intended for use in system installation. 50 */ 51 main(void) 52 { 53 extern int errno; 54 register int from, to, record, rcc, wcc, bsize = BSIZE; 55 char buf[BSIZE]; 56 57 from = getfile("From", 0); 58 to = getfile("To", 1); 59 for (record = 0;; ++record) { 60 if (!(rcc = read(from, buf, bsize))) 61 break; 62 if (rcc < 0) { 63 printf("Record %d: read error, errno=%d\n", 64 record, errno); 65 break; 66 } 67 if (rcc != bsize) { 68 if (record == 0) { 69 bsize = rcc; 70 printf("Block size set from input; %d bytes\n", 71 bsize); 72 } else 73 printf("Record %d: read short; expected %d, got %d\n", 74 record, bsize, rcc); 75 } 76 #ifdef __vax__ 77 /* For bug in ht driver. */ 78 if (rcc > bsize) 79 rcc = bsize; 80 #endif 81 if ((wcc = write(to, buf, rcc)) < 0) { 82 printf("Record %d: write error: errno=%d\n", 83 record, errno); 84 break; 85 } 86 if (wcc < rcc) { 87 printf("Record %d: write short; expected %d, got %d\n", 88 record, rcc, wcc); 89 break; 90 } 91 } 92 printf("copy completed: %d records copied\n", record); 93 } 94