* syscalls.cc (_read): Change error to EBADF if attempt to write to a

non-writable fd.

winsup/cygwin/ChangeLog

@@ -1,3 +1,8 @@
+2002-05-12  Christopher Faylor  <cgf@redhat.com>
+
+	* syscalls.cc (_read): Change error to EBADF if attempt to write to a
+	non-writable fd.
+
 2002-05-11  Christopher Faylor  <cgf@redhat.com>
 
 	* fhandler.h (executable_states): For now, make dont_care_if_executable

winsup/cygwin/syscalls.cc

@@ -340,6 +340,14 @@ _read (int fd, void *ptr, size_t len)
 	}
 
     out:
+
+      if (res && get_errno () == EACCES &&
+	  !(cfd->get_flags () & (O_RDONLY | O_RDWR)))
+	{
+	  set_errno (EBADF);
+	  break;
+	}
+
       if (res >= 0 || get_errno () != EINTR || !thisframe.call_signal_handler ())
 	break;
       set_errno (e);