1 /* $NetBSD: refuse_compat.c,v 1.3 2022/01/23 21:07:28 rillig Exp $ */ 2 3 /* 4 * Copyright (c) 2021 The NetBSD Foundation, Inc. 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. The name of the author may not be used to endorse or promote 16 * products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 25 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #if !defined(lint) 34 __RCSID("$NetBSD: refuse_compat.c,v 1.3 2022/01/23 21:07:28 rillig Exp $"); 35 #endif /* !lint */ 36 37 #include <fuse_internal.h> 38 #include <string.h> 39 40 /* 41 * Compatibility symbols that had existed in old versions of 42 * librefuse. 43 */ 44 45 struct fuse_cmdline_opts_rev0 { 46 int singlethread; 47 int foreground; 48 int debug; 49 int nodefault_fsname; 50 char *mountpoint; 51 int show_version; 52 int show_help; 53 }; 54 55 int fuse_daemonize_rev0(struct fuse* fuse) __RENAME(fuse_daemonize); 56 int fuse_mount(struct fuse *fuse, const char *mountpoint); 57 int fuse_main_real(int argc, char **argv, const struct fuse_operations_v26 *op, 58 size_t size, void *user_data); 59 struct fuse *fuse_new(struct fuse_args *args, const void *op, size_t op_size, 60 void *user_data); 61 void fuse_destroy(struct fuse* fuse); 62 int fuse_parse_cmdline(struct fuse_args *args, struct fuse_cmdline_opts_rev0 *opts); 63 void fuse_unmount(struct fuse* fuse); 64 void fuse_unmount_compat22(const char *mountpoint); 65 66 /* librefuse once had a function fuse_daemonize() with an incompatible 67 * prototype with that of FUSE. We keep ABI compatibility with 68 * executables compiled against old librefuse by having this shim 69 * function as a symbol "fuse_daemonize". However, we can NOT keep API 70 * compatibility with old code expecting the wrong prototype. The only 71 * way to work around the problem is to put "#if FUSE_H_ < 20211204" 72 * into old user code. pho@ really regrets this mistake... */ 73 __warn_references( 74 fuse_daemonize, 75 "warning: reference to compatibility fuse_daemonize();" 76 " include <fuse.h> for correct reference") 77 int 78 fuse_daemonize_rev0(struct fuse* fuse __attribute__((__unused__))) { 79 return fuse_daemonize(1); 80 } 81 82 /* librefuse once had a function fuse_main_real() which was specific 83 * to FUSE 2.6 API. */ 84 __warn_references( 85 fuse_main_real, 86 "warning: reference to compatibility fuse_main_real();" 87 " include <fuse.h> for correct reference") 88 int 89 fuse_main_real(int argc, char **argv, const struct fuse_operations_v26 *op, 90 size_t size __attribute__((__unused__)), void *user_data) { 91 return __fuse_main(argc, argv, op, 26, user_data); 92 } 93 94 /* librefuse once had a function fuse_mount() for FUSE 3.0 but without 95 * a version postfix. */ 96 __warn_references( 97 fuse_mount, 98 "warning: reference to compatibility fuse_mount();" 99 " include <fuse.h> for correct reference") 100 int 101 fuse_mount(struct fuse *fuse, const char *mountpoint) { 102 return fuse_mount_v30(fuse, mountpoint); 103 } 104 105 /* librefuse once had a function fuse_new() for FUSE 3.0 but without a 106 * version postfix. */ 107 __warn_references( 108 fuse_new, 109 "warning: reference to compatibility fuse_new();" 110 " include <fuse.h> for correct reference") 111 struct fuse * 112 fuse_new(struct fuse_args *args, const void *op, 113 size_t op_size __attribute__((__unused__)), 114 void *user_data) { 115 return fuse_new_v30(args, op, 30, user_data); 116 } 117 118 /* librefuse once had a function fuse_destroy() for FUSE 3.0 but 119 * without a version postfix. */ 120 __warn_references( 121 fuse_new, 122 "warning: reference to compatibility fuse_destroy();" 123 " include <fuse.h> for correct reference") 124 void 125 fuse_destroy(struct fuse *fuse) { 126 fuse_destroy_v30(fuse); 127 } 128 129 /* librefuse once had a function fuse_parse_cmdline() for FUSE 3.0 but 130 * without a version postfix. It expected an old definition of struct 131 * fuse_cmdline_opts too. */ 132 __warn_references( 133 fuse_parse_cmdline, 134 "warning: reference to compatibility fuse_parse_cmdline();" 135 " include <fuse.h> for correct reference") 136 int 137 fuse_parse_cmdline(struct fuse_args *args, struct fuse_cmdline_opts_rev0 *opts) { 138 struct fuse_cmdline_opts tmp; 139 140 if (fuse_parse_cmdline_v30(args, &tmp) != 0) 141 return -1; 142 143 memcpy(opts, &tmp, sizeof(*opts)); 144 return 0; 145 } 146 147 /* librefuse once had a function fuse_unmount() for FUSE 3.0 but 148 * without a version postfix. */ 149 __warn_references( 150 fuse_unmount, 151 "warning: reference to compatibility fuse_unmount();" 152 " include <fuse.h> for correct reference") 153 void 154 fuse_unmount(struct fuse* fuse) { 155 fuse_unmount_v30(fuse); 156 } 157 158 /* librefuse once had a function fuse_unmount_compat22() which was an 159 * implementation of fuse_unmount() to be used when FUSE_USE_VERSION 160 * was set to 22 or below. The function was actually a no-op. */ 161 void 162 fuse_unmount_compat22(const char *mountpoint) { 163 fuse_unmount_v11(mountpoint); 164 } 165
Indexes created Sat Sep 20 22:09:52 GMT 2025