1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1998 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28*0Sstevel@tonic-gate /* All Rights Reserved */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988 32*0Sstevel@tonic-gate * The Regents of the University of California 33*0Sstevel@tonic-gate * All Rights Reserved 34*0Sstevel@tonic-gate * 35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from 36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its 37*0Sstevel@tonic-gate * contributors. 38*0Sstevel@tonic-gate */ 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate /*LINTLIBRARY*/ 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate #include <sys/types.h> 45*0Sstevel@tonic-gate #include "file64.h" 46*0Sstevel@tonic-gate #include <stdio.h> 47*0Sstevel@tonic-gate #include <fcntl.h> 48*0Sstevel@tonic-gate #include <unistd.h> 49*0Sstevel@tonic-gate #include <sys/file.h> 50*0Sstevel@tonic-gate #include "stdiom.h" 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate /* Final argument to _endopen depends on build environment */ 53*0Sstevel@tonic-gate #define ALWAYS_LARGE_OPEN 1 54*0Sstevel@tonic-gate #define LARGE_OPEN (_FILE_OFFSET_BITS == 64) 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate static FILE * 57*0Sstevel@tonic-gate _endopen(const char *file, const char *mode, FILE *iop, int largefile) 58*0Sstevel@tonic-gate { 59*0Sstevel@tonic-gate int plus, oflag, fd; 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate if (iop == NULL || file == NULL || file[0] == '\0') 62*0Sstevel@tonic-gate return (NULL); 63*0Sstevel@tonic-gate plus = (mode[1] == '+'); 64*0Sstevel@tonic-gate switch (mode[0]) { 65*0Sstevel@tonic-gate case 'w': 66*0Sstevel@tonic-gate oflag = (plus ? O_RDWR : O_WRONLY) | O_TRUNC | O_CREAT; 67*0Sstevel@tonic-gate break; 68*0Sstevel@tonic-gate case 'a': 69*0Sstevel@tonic-gate oflag = (plus ? O_RDWR : O_WRONLY) | O_CREAT; 70*0Sstevel@tonic-gate break; 71*0Sstevel@tonic-gate case 'r': 72*0Sstevel@tonic-gate oflag = plus ? O_RDWR : O_RDONLY; 73*0Sstevel@tonic-gate break; 74*0Sstevel@tonic-gate default: 75*0Sstevel@tonic-gate return (NULL); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate if (largefile) { 78*0Sstevel@tonic-gate fd = open64(file, oflag, 0666); /* mapped to open() for V9 */ 79*0Sstevel@tonic-gate } else { 80*0Sstevel@tonic-gate fd = open(file, oflag, 0666); 81*0Sstevel@tonic-gate } 82*0Sstevel@tonic-gate if (fd < 0) 83*0Sstevel@tonic-gate return (NULL); 84*0Sstevel@tonic-gate iop->_cnt = 0; 85*0Sstevel@tonic-gate iop->_file = (unsigned char) fd; 86*0Sstevel@tonic-gate iop->_flag = plus ? _IORW : (mode[0] == 'r') ? _IOREAD : _IOWRT; 87*0Sstevel@tonic-gate if (mode[0] == 'a') { 88*0Sstevel@tonic-gate if ((lseek64(fd, 0L, SEEK_END)) < 0) { 89*0Sstevel@tonic-gate (void) close(fd); 90*0Sstevel@tonic-gate return (NULL); 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate } 93*0Sstevel@tonic-gate iop->_base = iop->_ptr = NULL; 94*0Sstevel@tonic-gate /* 95*0Sstevel@tonic-gate * Sys5 does not support _bufsiz 96*0Sstevel@tonic-gate * 97*0Sstevel@tonic-gate * iop->_bufsiz = 0; 98*0Sstevel@tonic-gate */ 99*0Sstevel@tonic-gate return (iop); 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate FILE * 103*0Sstevel@tonic-gate fopen(const char *file, const char *mode) 104*0Sstevel@tonic-gate { 105*0Sstevel@tonic-gate FILE *iop; 106*0Sstevel@tonic-gate FILE *rc; 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate iop = _findiop(); 109*0Sstevel@tonic-gate rc = _endopen(file, mode, iop, LARGE_OPEN); 110*0Sstevel@tonic-gate if (rc == NULL && iop != NULL) 111*0Sstevel@tonic-gate iop->_flag = 0; /* release iop */ 112*0Sstevel@tonic-gate return (rc); 113*0Sstevel@tonic-gate } 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate /* 116*0Sstevel@tonic-gate * For _LP64, all fopen() calls are 64-bit calls, i.e., open64() system call. 117*0Sstevel@tonic-gate * There should not be fopen64() calls. 118*0Sstevel@tonic-gate * Similar for freopen64(). 119*0Sstevel@tonic-gate */ 120*0Sstevel@tonic-gate #if !defined(_LP64) 121*0Sstevel@tonic-gate FILE * 122*0Sstevel@tonic-gate fopen64(const char *file, const char *mode) 123*0Sstevel@tonic-gate { 124*0Sstevel@tonic-gate FILE *iop; 125*0Sstevel@tonic-gate FILE *rc; 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate iop = _findiop(); 128*0Sstevel@tonic-gate rc = _endopen(file, mode, iop, ALWAYS_LARGE_OPEN); 129*0Sstevel@tonic-gate if (rc == NULL && iop != NULL) 130*0Sstevel@tonic-gate iop->_flag = 0; /* release iop */ 131*0Sstevel@tonic-gate return (rc); 132*0Sstevel@tonic-gate } 133*0Sstevel@tonic-gate #endif 134*0Sstevel@tonic-gate 135*0Sstevel@tonic-gate FILE * 136*0Sstevel@tonic-gate freopen(const char *file, const char *mode, FILE *iop) 137*0Sstevel@tonic-gate { 138*0Sstevel@tonic-gate (void) fclose(iop); /* doesn't matter if this fails */ 139*0Sstevel@tonic-gate return (_endopen(file, mode, iop, LARGE_OPEN)); 140*0Sstevel@tonic-gate } 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate #if !defined(_LP64) 143*0Sstevel@tonic-gate FILE * 144*0Sstevel@tonic-gate freopen64(const char *file, const char *mode, FILE *iop) 145*0Sstevel@tonic-gate { 146*0Sstevel@tonic-gate (void) fclose(iop); /* doesn't matter if this fails */ 147*0Sstevel@tonic-gate return (_endopen(file, mode, iop, ALWAYS_LARGE_OPEN)); 148*0Sstevel@tonic-gate } 149*0Sstevel@tonic-gate #endif 150