* dtable.cc (dtable::dup3): Fix bounds checking for valid newfd.

* syscalls.cc (dup2): Ditto. * winsup.h (events_terminate): Delete obsolete function declaration.
2012-12-31 18:31:49 +00:00
parent 871d0724fa
commit f6187d46b1
4 changed files with 8 additions and 3 deletions
--- a/winsup/cygwin/syscalls.cc
+++ b/winsup/cygwin/syscalls.cc
@@ -142,7 +142,7 @@ extern "C" int
 dup2 (int oldfd, int newfd)
 {
  int res;
-  if (newfd >= OPEN_MAX_MAX)
+  if (newfd >= OPEN_MAX_MAX || newfd < 0)
    {
      set_errno (EBADF);
      res = -1;