xref: /freebsd/contrib/bc/src/dc.c (revision 2e3f49888ec8851bafb22011533217487764fdb0)
1 /*
2  * *****************************************************************************
3  *
4  * SPDX-License-Identifier: BSD-2-Clause
5  *
6  * Copyright (c) 2018-2023 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 main procedure of dc.
33  *
34  */
35 
36 #if DC_ENABLED
37 
38 #include <string.h>
39 
40 #include <dc.h>
41 #include <vm.h>
42 
43 /**
44  * The main function for dc.
45  * @param argc  The number of arguments.
46  * @param argv  The arguments.
47  */
48 void
49 dc_main(int argc, char* argv[])
50 {
51 	// All of these just set dc-specific items in BcVm.
52 
53 	vm->read_ret = BC_INST_POP_EXEC;
54 	vm->help = dc_help;
55 	vm->sigmsg = dc_sig_msg;
56 	vm->siglen = dc_sig_msg_len;
57 
58 	vm->next = dc_lex_token;
59 	vm->parse = dc_parse_parse;
60 	vm->expr = dc_parse_expr;
61 
62 	bc_vm_boot(argc, argv);
63 }
64 #endif // DC_ENABLED
65