[PATCH] [msan] Intercept *getxattr and *listxattr.

[Sergey Matveev]

================
Comment at: lib/sanitizer_common/sanitizer_common_interceptors.inc:3076
@@ +3075,3 @@
+  SSIZE_T res = REAL(listxattr)(path, list, size);
+  if (res >= 0) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, list, size);
+  return res;
----------------
Sergey Matveev wrote:
> Evgeniy Stepanov wrote:
> > if (res  > 0 && list)
> > 
> > size => res
> We should probably fix this also in sanitizer_common_syscalls.inc, then.
Also, I'm fairly sure res > 0 implies list != NULL.


http://llvm-reviews.chandlerc.com/D2642