mirror of https://github.com/google/oss-fuzz.git
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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# Copyright 2021 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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*/
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#include <assert.h>
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#include <config.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include ELFUTILS_HEADER(dwfl)
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static const Dwfl_Callbacks core_callbacks = {
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.find_elf = dwfl_build_id_find_elf,
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.find_debuginfo = dwfl_standard_find_debuginfo,
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};
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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char name[] = "/tmp/fuzz-dwfl-core.XXXXXX";
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int fd = -1;
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ssize_t n;
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off_t offset;
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Elf *core = NULL;
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Dwfl *dwfl = NULL;
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fd = mkstemp(name);
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assert(fd >= 0);
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n = write(fd, data, size);
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assert(n == size);
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offset = lseek(fd, 0, SEEK_SET);
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assert(offset == 0);
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elf_version(EV_CURRENT);
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core = elf_begin(fd, ELF_C_READ_MMAP, NULL);
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if (core == NULL)
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goto cleanup;
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dwfl = dwfl_begin(&core_callbacks);
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assert(dwfl != NULL);
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if (dwfl_core_file_report(dwfl, core, NULL) < 0)
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goto cleanup;
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if (dwfl_report_end(dwfl, NULL, NULL) != 0)
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goto cleanup;
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cleanup:
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dwfl_end(dwfl);
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elf_end(core);
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close(fd);
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unlink(name);
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return 0;
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}
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