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
57257d1b4Sraf * Common Development and Distribution License (the "License").
67257d1b4Sraf * 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 */
217257d1b4Sraf
227c478bd9Sstevel@tonic-gate /*
237257d1b4Sraf * 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
307c478bd9Sstevel@tonic-gate /*
317c478bd9Sstevel@tonic-gate * Seek for standard library. Coordinates with buffering.
327c478bd9Sstevel@tonic-gate */
337c478bd9Sstevel@tonic-gate
347c478bd9Sstevel@tonic-gate #include <sys/feature_tests.h>
357c478bd9Sstevel@tonic-gate
367c478bd9Sstevel@tonic-gate #if !defined(_LP64)
377257d1b4Sraf #pragma weak _fseeko64 = fseeko64
387c478bd9Sstevel@tonic-gate #endif
397257d1b4Sraf #pragma weak _fseeko = fseeko
407c478bd9Sstevel@tonic-gate
417257d1b4Sraf #include "lint.h"
427c478bd9Sstevel@tonic-gate #include "file64.h"
437c478bd9Sstevel@tonic-gate #include "mtlib.h"
447c478bd9Sstevel@tonic-gate #include <sys/types.h>
457c478bd9Sstevel@tonic-gate #include <unistd.h>
467c478bd9Sstevel@tonic-gate #include <limits.h>
477c478bd9Sstevel@tonic-gate #include <stdio.h>
487c478bd9Sstevel@tonic-gate #include <errno.h>
497c478bd9Sstevel@tonic-gate #include <thread.h>
507c478bd9Sstevel@tonic-gate #include <synch.h>
517c478bd9Sstevel@tonic-gate #include "stdiom.h"
527c478bd9Sstevel@tonic-gate
537c478bd9Sstevel@tonic-gate #if !defined(_LP64)
547c478bd9Sstevel@tonic-gate int
fseeko64(FILE * iop,off64_t offset,int ptrname)557c478bd9Sstevel@tonic-gate fseeko64(FILE *iop, off64_t offset, int ptrname)
567c478bd9Sstevel@tonic-gate {
577c478bd9Sstevel@tonic-gate off64_t p;
587c478bd9Sstevel@tonic-gate rmutex_t *lk;
597c478bd9Sstevel@tonic-gate
607c478bd9Sstevel@tonic-gate FLOCKFILE(lk, iop);
617c478bd9Sstevel@tonic-gate iop->_flag &= ~_IOEOF;
627c478bd9Sstevel@tonic-gate
637c478bd9Sstevel@tonic-gate if (!(iop->_flag & _IOREAD) && !(iop->_flag & (_IOWRT | _IORW))) {
647c478bd9Sstevel@tonic-gate errno = EBADF;
657c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk);
667c478bd9Sstevel@tonic-gate return (-1);
677c478bd9Sstevel@tonic-gate }
687c478bd9Sstevel@tonic-gate
697c478bd9Sstevel@tonic-gate if (iop->_flag & _IOREAD) {
707c478bd9Sstevel@tonic-gate if (ptrname == 1 && iop->_base && !(iop->_flag&_IONBF)) {
717c478bd9Sstevel@tonic-gate offset -= iop->_cnt;
727c478bd9Sstevel@tonic-gate }
737c478bd9Sstevel@tonic-gate } else if (iop->_flag & (_IOWRT | _IORW)) {
747c478bd9Sstevel@tonic-gate if (_fflush_u(iop) == EOF) {
757c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk);
767c478bd9Sstevel@tonic-gate return (-1);
777c478bd9Sstevel@tonic-gate }
787c478bd9Sstevel@tonic-gate }
797c478bd9Sstevel@tonic-gate iop->_cnt = 0;
807c478bd9Sstevel@tonic-gate iop->_ptr = iop->_base;
817c478bd9Sstevel@tonic-gate if (iop->_flag & _IORW) {
827c478bd9Sstevel@tonic-gate iop->_flag &= ~(_IOREAD | _IOWRT);
837c478bd9Sstevel@tonic-gate }
84*cd62a92dSRobert Mustacchi p = _xseek64(iop, offset, ptrname);
857c478bd9Sstevel@tonic-gate FUNLOCKFILE(lk);
867c478bd9Sstevel@tonic-gate return ((p == -1)? -1: 0);
877c478bd9Sstevel@tonic-gate }
887c478bd9Sstevel@tonic-gate #endif /* _LP64 */
897c478bd9Sstevel@tonic-gate
907c478bd9Sstevel@tonic-gate int
fseeko(FILE * iop,off_t offset,int ptrname)917c478bd9Sstevel@tonic-gate fseeko(FILE *iop, off_t offset, int ptrname)
927c478bd9Sstevel@tonic-gate {
937c478bd9Sstevel@tonic-gate return (fseek(iop, offset, ptrname));
947c478bd9Sstevel@tonic-gate }
95