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

Zachary Turner via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Jan 17 10:08:10 PST 2017

zturner added inline comments.

Comment at: lib/Fuzzer/FuzzerIOPosix.cpp:80
+  FILE* Temp = fopen("/dev/null", "w");
+  if (!Temp)
+    return;
vitalybuka wrote:
> Why not just use CloseFile on Posix if it works?
I think it was just working on accident, seems like writing to a closed file descriptor is always wrong, even if you get lucky and it "works".



More information about the llvm-commits mailing list