xref: /xnu-10063.121.3/libsyscall/wrappers/system-version-compat-support.c (revision 2c2f96dc2b9a4408a43d3150ae9c105355ca3daa)
1*2c2f96dcSApple OSS Distributions /*
2*2c2f96dcSApple OSS Distributions  * Copyright (c) 2020 Apple Inc. All rights reserved.
3*2c2f96dcSApple OSS Distributions  *
4*2c2f96dcSApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*2c2f96dcSApple OSS Distributions  *
6*2c2f96dcSApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*2c2f96dcSApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*2c2f96dcSApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*2c2f96dcSApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*2c2f96dcSApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*2c2f96dcSApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*2c2f96dcSApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*2c2f96dcSApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*2c2f96dcSApple OSS Distributions  *
15*2c2f96dcSApple OSS Distributions  * Please obtain a copy of the License at
16*2c2f96dcSApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*2c2f96dcSApple OSS Distributions  *
18*2c2f96dcSApple OSS Distributions  * The Original Code and all software distributed under the License are
19*2c2f96dcSApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*2c2f96dcSApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*2c2f96dcSApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*2c2f96dcSApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*2c2f96dcSApple OSS Distributions  * Please see the License for the specific language governing rights and
24*2c2f96dcSApple OSS Distributions  * limitations under the License.
25*2c2f96dcSApple OSS Distributions  *
26*2c2f96dcSApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*2c2f96dcSApple OSS Distributions  */
28*2c2f96dcSApple OSS Distributions 
29*2c2f96dcSApple OSS Distributions #include "system-version-compat-support.h"
30*2c2f96dcSApple OSS Distributions 
31*2c2f96dcSApple OSS Distributions #if SYSTEM_VERSION_COMPAT_ENABLED
32*2c2f96dcSApple OSS Distributions 
33*2c2f96dcSApple OSS Distributions 
34*2c2f96dcSApple OSS Distributions #include <stdbool.h>
35*2c2f96dcSApple OSS Distributions #include <sys/param.h>
36*2c2f96dcSApple OSS Distributions #include <sys/types.h>
37*2c2f96dcSApple OSS Distributions 
38*2c2f96dcSApple OSS Distributions __attribute__((visibility("hidden")))
39*2c2f96dcSApple OSS Distributions bool (*system_version_compat_check_path_suffix)(const char *orig_path) = NULL;
40*2c2f96dcSApple OSS Distributions system_version_compat_mode_t system_version_compat_mode = SYSTEM_VERSION_COMPAT_MODE_DISABLED;
41*2c2f96dcSApple OSS Distributions 
42*2c2f96dcSApple OSS Distributions __attribute__((visibility("hidden")))
43*2c2f96dcSApple OSS Distributions int (*system_version_compat_open_shim)(int opened_fd, int openat_fd, const char *orig_path, int oflag, mode_t mode,
44*2c2f96dcSApple OSS Distributions     int (*close_syscall)(int), int (*open_syscall)(const char *, int, mode_t),
45*2c2f96dcSApple OSS Distributions     int (*openat_syscall)(int, const char *, int, mode_t),
46*2c2f96dcSApple OSS Distributions     int (*fcntl_syscall)(int, int, long)) = NULL;
47*2c2f96dcSApple OSS Distributions #endif /* SYSTEM_VERSION_COMPAT_ENABLED */
48