* dlopen.c (dlopen): Return NULL when name is NULL (suggested by

chrisiasci@aol.com).
* cygwin.din: Add a new, internally used export - _check_for_executable.
* dcrt0.cc (dll_crt0_1): Set _check_for_executable for older binaries.  Pass
user_data to premain functions.
* fhandler.cc (fhandler_disk_file::open): Only check for executable if the
linked program is intereested in the executable bit.
(fhandler_disk_file::check_execable_p): Delete.
* fhandler.h (executable_states): New enumeration of various states of
executable bit caring.
(fhandler_base::set_execable_p): New method.
* fhandler_termios.cc (fhandler_termios::line_edit): Flag when a signal has
been sent to the tty.  Return -1 when this is so.
* fhandler_console.cc (fhandler_console::read): Return -1 when signal sending
character encountered.
* path.cc (path_conv::check): Record when path refers to a disk device.  Move
executable extension check here.
(check_sysfile): Accomodate new EXEC path states.
(has_suffix): Remove.
(next_suffix): Remove.
(class suffix_scan): New clas.
(suffix_scan::has): New method.
(suffix_scan:next): New method.
(symlink_info::check): Use suffix_scan method to control for scanning for
suffixes.
* path.h (path_conv::exec_state): New method.
* perprocess.h: Make "C" friendly.
* include/cygwin/version.h: Define CYGWIN_VERSION_CHECK_FOR_S_IEXEC.  Bump
CYGWIN_VERSION_API_MINOR.
* include/sys/cygwin.h: Change premain declarations.
* winsup.h: Move __cplusplus test to after builtin defines.

1 files changed, 13 insertions, 4 deletions

diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc
index 7ef123784..6e8c76c1c 100644
--- a/winsup/cygwin/fhandler_console.cc
+++ b/winsup/cygwin/fhandler_console.cc
@@ -178,8 +178,7 @@ fhandler_console::read (void *pv, size_t buflen)
 	case WAIT_OBJECT_0:
 	  break;
 	case WAIT_OBJECT_0 + 1:
-	  set_sig_errno (EINTR);
-	  return -1;
+	  goto sig_exit;
 	default:
 	  __seterrno ();
 	  return -1;
@@ -358,8 +357,14 @@ fhandler_console::read (void *pv, size_t buflen)
 	  continue;
 	}
 
-      if (toadd && line_edit (toadd, nread))
-	break;
+      if (toadd)
+	{
+	  int res = line_edit (toadd, nread);
+	  if (res < 0)
+	    goto sig_exit;
+	  else if (res)
+	    break;
+	}
 #undef ich
     }
 
@@ -374,6 +379,10 @@ fhandler_console::read (void *pv, size_t buflen)
 #undef buf
 
   return copied_chars;
+
+ sig_exit:
+  set_sig_errno (EINTR);
+  return -1;
 }
 
 void