[PATCH] D28718: [libFuzzer] Avoid undefined behavior. Properly discard output to stdout and stderr.

[Marcos Pividori via Phabricator via llvm-commits]

mpividori added a comment.

Hi, it is undefined behavior. It could fail.
Also, if we close `stdout` and we open a new file in `libFuzzer`, we get the file descriptor 1, which could generate problem if some code assumes file descriptors refers to stdout and works directly writing to the file descriptor 1, but it will be writing to the opened file.


Repository:
  rL LLVM

https://reviews.llvm.org/D28718