diff options
Diffstat (limited to 'compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp')
| -rw-r--r-- | compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp b/compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp index d869c3ec235..bde9f68d62a 100644 --- a/compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp +++ b/compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp @@ -18,6 +18,7 @@ #include <cinttypes> #include <cstdint> #include <fcntl.h> +#include <lib/fdio/fdio.h> #include <lib/fdio/spawn.h> #include <string> #include <sys/select.h> @@ -529,6 +530,18 @@ const void *SearchMemory(const void *Data, size_t DataLen, const void *Patt, return memmem(Data, DataLen, Patt, PattLen); } +// In fuchsia, accessing /dev/null is not supported. There's nothing +// similar to a file that discards everything that is written to it. +// The way of doing something similar in fuchsia is by using +// fdio_null_create and binding that to a file descriptor. +void DiscardOutput(int Fd) { + fdio_t *fdio_null = fdio_null_create(); + if (fdio_null == nullptr) return; + int nullfd = fdio_bind_to_fd(fdio_null, -1, 0); + if (nullfd < 0) return; + dup2(nullfd, Fd); +} + } // namespace fuzzer #endif // LIBFUZZER_FUCHSIA |
