1/*
2 * *****************************************************************************
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 2018-2021 Gavin D. Howard and contributors.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * * Redistributions of source code must retain the above copyright notice, this
12 *   list of conditions and the following disclaimer.
13 *
14 * * Redistributions in binary form must reproduce the above copyright notice,
15 *   this list of conditions and the following disclaimer in the documentation
16 *   and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 *
30 * *****************************************************************************
31 *
32 * The entry point for bc.
33 *
34 */
35
36#include <assert.h>
37#include <stdlib.h>
38#include <string.h>
39
40#include <locale.h>
41
42#ifndef _WIN32
43#include <libgen.h>
44#endif // _WIN32
45
46#include <setjmp.h>
47
48#include <version.h>
49#include <status.h>
50#include <vm.h>
51#include <bc.h>
52#include <dc.h>
53
54int main(int argc, char *argv[]) {
55
56	char *name;
57	size_t len = strlen(BC_EXECPREFIX);
58
59	vm.locale = setlocale(LC_ALL, "");
60
61	name = strrchr(argv[0], BC_FILE_SEP);
62	vm.name = (name == NULL) ? argv[0] : name + 1;
63
64	if (strlen(vm.name) > len) vm.name += len;
65
66	BC_SIG_LOCK;
67
68	bc_vec_init(&vm.jmp_bufs, sizeof(sigjmp_buf), NULL);
69
70	BC_SETJMP_LOCKED(exit);
71
72#if !DC_ENABLED
73	bc_main(argc, argv);
74#elif !BC_ENABLED
75	dc_main(argc, argv);
76#else
77	if (BC_IS_BC) bc_main(argc, argv);
78	else dc_main(argc, argv);
79#endif
80
81exit:
82	BC_SIG_MAYLOCK;
83
84	return bc_vm_atexit((int) vm.status);
85}
86