1 /* $NetBSD: lib.c,v 1.1 2024/02/18 20:57:49 christos Exp $ */
2
3 /*
4 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
5 *
6 * SPDX-License-Identifier: MPL-2.0
7 *
8 * This Source Code Form is subject to the terms of the Mozilla Public
9 * License, v. 2.0. If a copy of the MPL was not distributed with this
10 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
11 *
12 * See the COPYRIGHT file distributed with this work for additional
13 * information regarding copyright ownership.
14 */
15
16 /*! \file */
17
18 #include <isc/bind9.h>
19 #include <isc/iterated_hash.h>
20 #include <isc/lib.h>
21 #include <isc/mem.h>
22 #include <isc/util.h>
23
24 #include "config.h"
25 #include "mem_p.h"
26 #include "tls_p.h"
27 #include "trampoline_p.h"
28
29 #ifndef ISC_CONSTRUCTOR
30 #error Either __attribute__((constructor|destructor))__ or DllMain support needed to compile BIND 9.
31 #endif
32
33 /***
34 *** Functions
35 ***/
36
37 void
isc_lib_register(void)38 isc_lib_register(void) {
39 isc_bind9 = false;
40 }
41
42 #ifdef WIN32
43 int
isc_lib_ntservice(int (WINAPI * mainfunc)(int argc,char * argv[]),int argc,char * argv[])44 isc_lib_ntservice(int(WINAPI *mainfunc)(int argc, char *argv[]), int argc,
45 char *argv[]) {
46 isc__trampoline_t *trampoline = isc__trampoline_get(NULL, NULL);
47 int r;
48
49 isc__trampoline_attach(trampoline);
50
51 r = mainfunc(argc, argv);
52
53 isc__trampoline_detach(trampoline);
54
55 return (r);
56 }
57 #endif /* ifdef WIN32 */
58
59 void
60 isc__initialize(void) ISC_CONSTRUCTOR;
61 void
62 isc__shutdown(void) ISC_DESTRUCTOR;
63
64 void
isc__initialize(void)65 isc__initialize(void) {
66 isc__mem_initialize();
67 isc__tls_initialize();
68 isc__trampoline_initialize();
69 }
70
71 void
isc__shutdown(void)72 isc__shutdown(void) {
73 isc__trampoline_shutdown();
74 isc__tls_shutdown();
75 isc__mem_shutdown();
76 }
77
78 /*
79 * This is a workaround for situation when libisc is statically linked. Under
80 * normal situation, the linker throws out all symbols from compilation unit
81 * when no symbols are used in the final binary. This empty function must be
82 * called at least once from different compilation unit (mem.c in this case).
83 */
84 void
isc_enable_constructors()85 isc_enable_constructors() {
86 /* do nothing */
87 }
88