1/* $NetBSD: compat_stat.c,v 1.3 2013/10/04 20:49:16 christos Exp $ */ 2 3/* 4 * Copyright (c) 1997 Frank van der Linden 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the NetBSD Project 18 * by Frank van der Linden 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34#include <sys/cdefs.h> 35#if defined(LIBC_SCCS) && !defined(lint) 36__RCSID("$NetBSD: compat_stat.c,v 1.3 2013/10/04 20:49:16 christos Exp $"); 37#endif /* LIBC_SCCS and not lint */ 38 39#define __LIBC12_SOURCE__ 40 41#include <sys/types.h> 42#include <sys/stat.h> 43#include <compat/sys/time.h> 44#include <compat/sys/stat.h> 45 46__warn_references(stat, 47 "warning: reference to compatibility stat(); include <sys/stat.h> to generate correct reference") 48 49__warn_references(fstat, 50 "warning: reference to compatibility fstat(); include <sys/stat.h> to generate correct reference") 51 52__warn_references(lstat, 53 "warning: reference to compatibility lstat(); include <sys/stat.h> to generate correct reference") 54 55/* 56 * Convert from a new to an old stat structure. 57 */ 58 59static void cvtstat(const struct stat *, struct stat12 *); 60 61__strong_alias(stat, __compat_stat) 62__strong_alias(lstat, __compat_lstat) 63__strong_alias(fstat, __compat_fstat) 64 65static void 66cvtstat(const struct stat *st, struct stat12 *ost) 67{ 68 69 ost->st_dev = (uint32_t)st->st_dev; 70 ost->st_ino = (uint32_t)st->st_ino; 71 ost->st_mode = st->st_mode; 72 if (st->st_nlink >= (1 << 15)) 73 ost->st_nlink = (1 << 15) - 1; 74 else 75 ost->st_nlink = st->st_nlink; 76 ost->st_uid = st->st_uid; 77 ost->st_gid = st->st_gid; 78 ost->st_rdev = (uint32_t)st->st_rdev; 79 ost->st_atimespec.tv_sec = (int32_t)st->st_atimespec.tv_sec; 80 ost->st_atimespec.tv_nsec = st->st_atimespec.tv_nsec; 81 ost->st_mtimespec.tv_sec = (int32_t)st->st_mtimespec.tv_sec; 82 ost->st_mtimespec.tv_nsec = st->st_mtimespec.tv_nsec; 83 ost->st_ctimespec.tv_sec = (int32_t)st->st_ctimespec.tv_sec; 84 ost->st_ctimespec.tv_nsec = st->st_ctimespec.tv_nsec; 85 ost->st_size = st->st_size; 86 ost->st_blocks = st->st_blocks; 87 ost->st_blksize = st->st_blksize; 88 ost->st_flags = st->st_flags; 89 ost->st_gen = st->st_gen; 90} 91 92int 93__compat_stat(const char *file, struct stat12 *ost) 94{ 95 struct stat nst; 96 int ret; 97 98 if ((ret = __stat50(file, &nst)) < 0) 99 return ret; 100 cvtstat(&nst, ost); 101 return ret; 102} 103 104int 105__compat_fstat(int f, struct stat12 *ost) 106{ 107 struct stat nst; 108 int ret; 109 110 if ((ret = __fstat50(f, &nst)) < 0) 111 return ret; 112 cvtstat(&nst, ost); 113 return ret; 114} 115 116int 117__compat_lstat(const char *file, struct stat12 *ost) 118{ 119 struct stat nst; 120 int ret; 121 122 if ((ret = __lstat50(file, &nst)) < 0) 123 return ret; 124 cvtstat(&nst, ost); 125 return ret; 126} 127