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42 lines
1.7 KiB
C
42 lines
1.7 KiB
C
/*===- StandaloneFuzzTargetMain.c - standalone main() for fuzz targets. ---===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// This main() function can be linked to a fuzz target (i.e. a library
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// that exports LLVMFuzzerTestOneInput() and possibly LLVMFuzzerInitialize())
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// instead of libFuzzer. This main() function will not perform any fuzzing
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// but will simply feed all input files one by one to the fuzz target.
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//
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// Use this file to provide reproducers for bugs when linking against libFuzzer
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// or other fuzzing engine is undesirable.
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//===----------------------------------------------------------------------===*/
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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extern int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size);
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__attribute__((weak)) extern int LLVMFuzzerInitialize(int *argc, char ***argv);
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int main(int argc, char **argv) {
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fprintf(stderr, "StandaloneFuzzTargetMain: running %d inputs\n", argc - 1);
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if (LLVMFuzzerInitialize)
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LLVMFuzzerInitialize(&argc, &argv);
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for (int i = 1; i < argc; i++) {
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fprintf(stderr, "Running: %s\n", argv[i]);
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FILE *f = fopen(argv[i], "r");
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assert(f);
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fseek(f, 0, SEEK_END);
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size_t len = ftell(f);
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fseek(f, 0, SEEK_SET);
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unsigned char *buf = (unsigned char*)malloc(len);
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size_t n_read = fread(buf, 1, len, f);
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assert(n_read == len);
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LLVMFuzzerTestOneInput(buf, len);
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free(buf);
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fprintf(stderr, "Done: %s: (%zd bytes)\n", argv[i], n_read);
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}
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}
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