Bash-4.3 Official Patch 32

[Chet Ramey]

                             BASH PATCH REPORT
                             =================

Bash-Release:   4.3
Patch-ID:       bash43-032

Bug-Reported-by:        crispusfairbairn@gmail.com
Bug-Reference-ID:       <b5e499f7-3b98-408d-9f94-c0387580e73a@googlegroups.com>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-bash/2014-09/msg00013.html

Bug-Description:

When bash is running in Posix mode, it allows signals -- including SIGCHLD --
to interrupt the `wait' builtin, as Posix requires.  However, the interrupt
causes bash to not run a SIGCHLD trap for all exited children.  This patch
fixes the issue and restores the documented behavior in Posix mode.

Patch (apply with `patch -p0'):

*** ../bash-4.3-patched/jobs.c  2014-05-14 09:20:15.000000000 -0400
--- jobs.c      2014-09-09 11:50:38.000000000 -0400
***************
*** 3340,3344 ****
        {
          interrupt_immediately = 0;
!         trap_handler (SIGCHLD);       /* set pending_traps[SIGCHLD] */
          wait_signal_received = SIGCHLD;
          /* If we're in a signal handler, let CHECK_WAIT_INTR pick it up;
--- 3346,3352 ----
        {
          interrupt_immediately = 0;
!         /* This was trap_handler (SIGCHLD) but that can lose traps if
!            children_exited > 1 */
!         queue_sigchld_trap (children_exited);
          wait_signal_received = SIGCHLD;
          /* If we're in a signal handler, let CHECK_WAIT_INTR pick it up;
*** ../bash-4.3/patchlevel.h    2012-12-29 10:47:57.000000000 -0500
--- patchlevel.h        2014-03-20 20:01:28.000000000 -0400
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 31
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 32
  
  #endif /* _PATCHLEVEL_H_ */

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/