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 1988 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.1 */ 31 32 /*LINTLIBRARY*/ 33 #include <stdio.h> 34 #include <varargs.h> 35 36 extern int _doprnt(); 37 38 /*VARARGS2*/ 39 int 40 vfprintf(iop, format, ap) 41 FILE *iop; 42 char *format; 43 va_list ap; 44 { 45 unsigned char localbuf[BUFSIZ]; 46 register int count; 47 48 if (!(iop->_flag & _IOWRT)) { 49 /* if no write flag */ 50 if (iop->_flag & _IORW) { 51 /* if ok, cause read-write */ 52 iop->_flag |= _IOWRT; 53 } else { 54 /* else error */ 55 return EOF; 56 } 57 } 58 if (iop->_flag & _IONBF) { 59 iop->_flag &= ~_IONBF; 60 iop->_ptr = iop->_base = localbuf; 61 iop->_bufsiz = BUFSIZ; 62 count = _doprnt(format, ap, iop); 63 fflush(iop); 64 iop->_flag |= _IONBF; 65 iop->_base = NULL; 66 iop->_bufsiz = 0; 67 iop->_cnt = 0; 68 } else 69 count = _doprnt(format, ap, iop); 70 return(count); 71 } 72