Cygwin: open: support Linux-specific O_PATH flag

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-01-07 19:33:11 +01:00
parent 91ca95ae4a
commit b93022a82d
8 changed files with 74 additions and 4 deletions
--- a/winsup/cygwin/mmap.cc
+++ b/winsup/cygwin/mmap.cc
@@ -930,6 +930,11 @@ mmap64 (void *addr, size_t len, int prot, int flags, int fd, off_t off)
      cygheap_fdget cfd (fd);
      if (cfd < 0)
 	goto out;
+      if (cfd->get_flags () & O_PATH)
+	{
+	  set_errno (EBADF);
+	  goto out;
+	}

      fh = cfd;