1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * NAME 32 * copystream - copy one FILE stream to another 33 * 34 * SYNOPSIS 35 * int copystream(FILE *infp, FILE *outfp) 36 * 37 * DESCRIPTION 38 * copystream() copies one stream to another. The stream 39 * infp must be opened for reading and the stream outfp 40 * must be opened for writing. 41 * 42 * It returns true if the stream is successively copied; 43 * false if any writes fail. 44 */ 45 46 #include "libmail.h" 47 #include <sys/types.h> 48 49 int 50 copystream(FILE *infp, FILE *outfp) 51 { 52 char buffer[BUFSIZ]; 53 size_t nread; 54 55 while ((nread = fread(buffer, sizeof (char), sizeof (buffer), 56 infp)) > 0) 57 if (fwrite(buffer, sizeof (char), nread, outfp) != nread) 58 return (0); 59 return (1); 60 } 61