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/*
* *****************************************************************************
*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2018-2021 Gavin D. Howard and contributors.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* *****************************************************************************
*
* The entry point for bc.
*
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#ifndef _WIN32
#include <libgen.h>
#endif // _WIN32
#include <setjmp.h>
#include <version.h>
#include <status.h>
#include <vm.h>
#include <bc.h>
#include <dc.h>
int main(int argc, char *argv[]) {
char *name;
size_t len = strlen(BC_EXECPREFIX);
// Must set the locale properly in order to have the right error messages.
vm.locale = setlocale(LC_ALL, "");
// Set the start pledge().
bc_pledge(bc_pledge_start, NULL);
// Figure out the name of the calculator we are using. We can't use basename
// because it's not portable, but yes, this is stripping off the directory.
name = strrchr(argv[0], BC_FILE_SEP);
vm.name = (name == NULL) ? argv[0] : name + 1;
// If the name is longer than the length of the prefix, skip the prefix.
if (strlen(vm.name) > len) vm.name += len;
BC_SIG_LOCK;
// We *must* do this here. Otherwise, other code could not jump out all of
// the way.
bc_vec_init(&vm.jmp_bufs, sizeof(sigjmp_buf), BC_DTOR_NONE);
BC_SETJMP_LOCKED(exit);
#if !DC_ENABLED
bc_main(argc, argv);
#elif !BC_ENABLED
dc_main(argc, argv);
#else
// BC_IS_BC uses vm.name, which was set above. So we're good.
if (BC_IS_BC) bc_main(argc, argv);
else dc_main(argc, argv);
#endif
exit:
BC_SIG_MAYLOCK;
// Ensure we exit appropriately.
return bc_vm_atexit((int) vm.status);
}
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