* fhandler_termios.cc (fhandler_termios::tcsetpgrp): Disallow attempts to set

the process group to a nonexistent process group.
2004-09-28 04:41:42 +00:00
parent 2b94cfce89
commit e3e443e4df
2 changed files with 6 additions and 1 deletions
--- a/winsup/cygwin/fhandler_termios.cc
+++ b/winsup/cygwin/fhandler_termios.cc
@@ -67,7 +67,7 @@ fhandler_termios::tcsetpgrp (const pid_t pgid)
 {
  termios_printf ("tty %d pgid %d, sid %d, tsid %d", tc->ntty, pgid,
 		    myself->sid, tc->getsid ());
-  if (myself->sid != tc->getsid ())
+  if (!pid_exists (pgid) || myself->sid != tc->getsid ())
    {
      set_errno (EPERM);
      return -1;