1 /* $NetBSD: compat_statfs.c,v 1.9 2019/10/04 01:28:03 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2004, 2019 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #if defined(LIBC_SCCS) && !defined(lint) 34 __RCSID("$NetBSD: compat_statfs.c,v 1.9 2019/10/04 01:28:03 christos Exp $"); 35 #endif /* LIBC_SCCS and not lint */ 36 37 #define __LIBC12_SOURCE__ 38 39 #include "namespace.h" 40 #include <sys/types.h> 41 #include <sys/param.h> 42 #include <sys/mount.h> 43 #include <compat/sys/mount.h> 44 #include <compat/include/fstypes.h> 45 #include <compat/sys/statvfs.h> 46 #include <string.h> 47 #include <stdlib.h> 48 49 __warn_references(statfs, 50 "warning: reference to obsolete statfs(); use statvfs()") 51 52 __warn_references(fstatfs, 53 "warning: reference to obsolete fstatfs(); use fstatvfs()") 54 55 __warn_references(fhstatfs, 56 "warning: reference to obsolete fhstatfs(); use fhstatvfs()") 57 58 __warn_references(getfsstat, 59 "warning: reference to obsolete getfsstat(); use getvfsstat()") 60 61 __strong_alias(statfs, __compat_statfs) 62 __strong_alias(fstatfs, __compat_fstatfs) 63 __strong_alias(fhstatfs, __compat_fhstatfs) 64 __strong_alias(getfsstat, __compat_getfsstat) 65 66 int 67 __compat_statfs(const char *file, struct statfs12 *ost) 68 { 69 struct statvfs nst; 70 int ret; 71 72 if ((ret = __statvfs90(file, &nst)) == -1) 73 return ret; 74 statvfs_to_statfs12(&nst, ost); 75 return ret; 76 } 77 78 int 79 __compat_fstatfs(int f, struct statfs12 *ost) 80 { 81 struct statvfs nst; 82 int ret; 83 84 if ((ret = __fstatvfs90(f, &nst)) == -1) 85 return ret; 86 statvfs_to_statfs12(&nst, ost); 87 return ret; 88 } 89 90 int 91 __compat_fhstatfs(const struct compat_30_fhandle *fh, struct statfs12 *ost) 92 { 93 struct statvfs nst; 94 int ret; 95 96 if ((ret = __fhstatvfs190(fh, FHANDLE30_SIZE, &nst, ST_WAIT)) == -1) 97 return ret; 98 statvfs_to_statfs12(&nst, ost); 99 return ret; 100 } 101 102 int 103 __compat_getfsstat(struct statfs12 *ost, long size, int flags) 104 { 105 struct statvfs *nst; 106 int ret, i; 107 size_t bsize = (size_t)(size / sizeof(*ost)) * sizeof(*nst); 108 109 if (ost != NULL) { 110 if ((nst = malloc(bsize)) == NULL) 111 return -1; 112 } else 113 nst = NULL; 114 115 if ((ret = __getvfsstat90(nst, bsize, flags)) == -1) 116 goto done; 117 if (nst) 118 for (i = 0; i < ret; i++) 119 statvfs_to_statfs12(&nst[i], &ost[i]); 120 done: 121 if (nst) 122 free(nst); 123 return ret; 124 } 125