17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5a5f69788Scraigm * Common Development and Distribution License (the "License"). 6a5f69788Scraigm * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 21a5f69788Scraigm 227c478bd9Sstevel@tonic-gate /* 23*7257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 287c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 30a5f69788Scraigm #pragma ident "%Z%%M% %I% %E% SMI" 31a5f69788Scraigm 32*7257d1b4Sraf #include "lint.h" 337c478bd9Sstevel@tonic-gate #include "file64.h" 347c478bd9Sstevel@tonic-gate #include "mtlib.h" 357c478bd9Sstevel@tonic-gate #include <sys/types.h> 367c478bd9Sstevel@tonic-gate #include <stdio.h> 377c478bd9Sstevel@tonic-gate #include <stdlib.h> 387c478bd9Sstevel@tonic-gate #include <thread.h> 397c478bd9Sstevel@tonic-gate #include <synch.h> 407c478bd9Sstevel@tonic-gate #include "stdiom.h" 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate void 447c478bd9Sstevel@tonic-gate setbuf(FILE *iop, char *abuf) 457c478bd9Sstevel@tonic-gate { 467c478bd9Sstevel@tonic-gate Uchar *buf = (Uchar *)abuf; 47a5f69788Scraigm int fno = GET_FD(iop); /* file number */ 487c478bd9Sstevel@tonic-gate int size = BUFSIZ - _SMBFSZ; 497c478bd9Sstevel@tonic-gate Uchar *temp; 507c478bd9Sstevel@tonic-gate rmutex_t *lk; 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate FLOCKFILE(lk, iop); 537c478bd9Sstevel@tonic-gate if ((iop->_base != 0) && (iop->_flag & _IOMYBUF)) 547c478bd9Sstevel@tonic-gate free((char *)iop->_base - PUSHBACK); 557c478bd9Sstevel@tonic-gate iop->_flag &= ~(_IOMYBUF | _IONBF | _IOLBF); 567c478bd9Sstevel@tonic-gate if (buf == 0) { 577c478bd9Sstevel@tonic-gate iop->_flag |= _IONBF; 587c478bd9Sstevel@tonic-gate #ifndef _STDIO_ALLOCATE 597c478bd9Sstevel@tonic-gate if (fno < 2) { 607c478bd9Sstevel@tonic-gate /* use special buffer for std{in,out} */ 617c478bd9Sstevel@tonic-gate buf = (fno == 0) ? _sibuf : _sobuf; 627c478bd9Sstevel@tonic-gate } else /* needed for ifndef */ 637c478bd9Sstevel@tonic-gate #endif 647c478bd9Sstevel@tonic-gate if (fno < _NFILE) { 657c478bd9Sstevel@tonic-gate buf = _smbuf[fno]; 667c478bd9Sstevel@tonic-gate size = _SMBFSZ - PUSHBACK; 677c478bd9Sstevel@tonic-gate } else 687c478bd9Sstevel@tonic-gate if ((buf = (Uchar *)malloc(_SMBFSZ * sizeof (Uchar))) != 0) { 697c478bd9Sstevel@tonic-gate iop->_flag |= _IOMYBUF; 707c478bd9Sstevel@tonic-gate size = _SMBFSZ - PUSHBACK; 717c478bd9Sstevel@tonic-gate } 727c478bd9Sstevel@tonic-gate } else { /* regular buffered I/O, standard buffer size */ 737c478bd9Sstevel@tonic-gate if (isatty(fno)) 747c478bd9Sstevel@tonic-gate iop->_flag |= _IOLBF; 757c478bd9Sstevel@tonic-gate } 767c478bd9Sstevel@tonic-gate if (buf == 0) { 777c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk); 787c478bd9Sstevel@tonic-gate return; /* malloc() failed */ 797c478bd9Sstevel@tonic-gate } 807c478bd9Sstevel@tonic-gate temp = buf + PUSHBACK; 817c478bd9Sstevel@tonic-gate iop->_base = temp; 827c478bd9Sstevel@tonic-gate _setbufend(iop, temp + size); 837c478bd9Sstevel@tonic-gate iop->_ptr = temp; 847c478bd9Sstevel@tonic-gate iop->_cnt = 0; 857c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk); 867c478bd9Sstevel@tonic-gate } 87