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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 24 /* All Rights Reserved */ 25 26 /* 27 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 /*LINTLIBRARY*/ 33 34 /* 35 NAME 36 copystream - copy one FILE stream to another 37 38 SYNOPSIS 39 int copystream(FILE *infp, FILE *outfp) 40 41 DESCRIPTION 42 copystream() copies one stream to another. The stream 43 infp must be opened for reading and the stream outfp 44 must be opened for writing. 45 46 It returns true if the stream is successively copied; 47 false if any writes fail. 48 */ 49 50 #include "c_synonyms.h" 51 #include "libmail.h" 52 #include <sys/types.h> 53 54 int 55 copystream(FILE *infp, FILE *outfp) 56 { 57 char buffer[BUFSIZ]; 58 size_t nread; 59 60 while ((nread = fread(buffer, sizeof (char), sizeof (buffer), 61 infp)) > 0) 62 if (fwrite(buffer, sizeof (char), nread, outfp) != nread) 63 return (0); 64 return (1); 65 } 66