1 /* 2 * ***************************************************************************** 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2018-2020 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 #include <libgen.h> 42 43 #include <setjmp.h> 44 45 #include <status.h> 46 #include <vm.h> 47 #include <bc.h> 48 #include <dc.h> 49 50 char output_bufs[BC_VM_BUF_SIZE]; 51 BcVm vm; 52 53 int main(int argc, char *argv[]) { 54 55 int s; 56 char *name; 57 size_t len = strlen(BC_EXECPREFIX); 58 59 vm.locale = setlocale(LC_ALL, ""); 60 61 name = strrchr(argv[0], '/'); 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 81 exit: 82 BC_SIG_MAYLOCK; 83 84 s = !BC_STATUS_IS_ERROR(vm.status) ? BC_STATUS_SUCCESS : (int) vm.status; 85 86 bc_vm_shutdown(); 87 88 #ifndef NDEBUG 89 bc_vec_free(&vm.jmp_bufs); 90 #endif // NDEBUG 91 92 return s; 93 } 94