diff options
author | George Karpenkov <ekarpenkov@apple.com> | 2017-08-21 23:25:50 +0000 |
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committer | George Karpenkov <ekarpenkov@apple.com> | 2017-08-21 23:25:50 +0000 |
commit | 0c8339c8aab25f1156558e9e2082b4b124dc2327 (patch) | |
tree | 4f04d28abce4cbaa73fbba2b64f56af353e0f08b /lib/fuzzer/standalone | |
parent | 1a32c939c5eece22f3ca6cf70bd05a1527bc0970 (diff) |
Move libFuzzer to compiler_rt.
Resulting library binaries will be named libclang_rt.fuzzer*, and will
be placed in Clang toolchain, allowing redistribution.
Differential Revision: https://reviews.llvm.org/D36908
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@311407 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/fuzzer/standalone')
-rw-r--r-- | lib/fuzzer/standalone/StandaloneFuzzTargetMain.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/lib/fuzzer/standalone/StandaloneFuzzTargetMain.c b/lib/fuzzer/standalone/StandaloneFuzzTargetMain.c new file mode 100644 index 000000000..0d76ea49e --- /dev/null +++ b/lib/fuzzer/standalone/StandaloneFuzzTargetMain.c @@ -0,0 +1,41 @@ +/*===- StandaloneFuzzTargetMain.c - standalone main() for fuzz targets. ---===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// This main() function can be linked to a fuzz target (i.e. a library +// that exports LLVMFuzzerTestOneInput() and possibly LLVMFuzzerInitialize()) +// instead of libFuzzer. This main() function will not perform any fuzzing +// but will simply feed all input files one by one to the fuzz target. +// +// Use this file to provide reproducers for bugs when linking against libFuzzer +// or other fuzzing engine is undesirable. +//===----------------------------------------------------------------------===*/ +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> + +extern int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size); +__attribute__((weak)) extern int LLVMFuzzerInitialize(int *argc, char ***argv); +int main(int argc, char **argv) { + fprintf(stderr, "StandaloneFuzzTargetMain: running %d inputs\n", argc - 1); + if (LLVMFuzzerInitialize) + LLVMFuzzerInitialize(&argc, &argv); + for (int i = 1; i < argc; i++) { + fprintf(stderr, "Running: %s\n", argv[i]); + FILE *f = fopen(argv[i], "r"); + assert(f); + fseek(f, 0, SEEK_END); + size_t len = ftell(f); + fseek(f, 0, SEEK_SET); + unsigned char *buf = (unsigned char*)malloc(len); + size_t n_read = fread(buf, 1, len, f); + assert(n_read == len); + LLVMFuzzerTestOneInput(buf, len); + free(buf); + fprintf(stderr, "Done: %s: (%zd bytes)\n", argv[i], n_read); + } +} |