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From 2965eca924466a48c5597ac5c6c86d470e718908 Mon Sep 17 00:00:00 2001
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From: Chet Ramey <chet.ramey@case.edu>
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Date: Mon, 14 Nov 2016 14:27:35 -0500
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Subject: [PATCH] Bash-4.4 patch 4
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---
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jobs.c | 15 +++++++++++++++
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jobs.h | 1 +
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patchlevel.h | 2 +-
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subst.c | 5 +----
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4 files changed, 18 insertions(+), 5 deletions(-)
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diff --git a/jobs.c b/jobs.c
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index cef3c79..fc96603 100644
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--- a/jobs.c
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+++ b/jobs.c
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@@ -453,6 +453,21 @@ cleanup_the_pipeline ()
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discard_pipeline (disposer);
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}
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+void
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+discard_last_procsub_child ()
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+{
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+ PROCESS *disposer;
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+ sigset_t set, oset;
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+
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+ BLOCK_CHILD (set, oset);
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+ disposer = last_procsub_child;
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+ last_procsub_child = (PROCESS *)NULL;
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+ UNBLOCK_CHILD (oset);
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+
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+ if (disposer)
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+ discard_pipeline (disposer);
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+}
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+
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struct pipeline_saver *
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alloc_pipeline_saver ()
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{
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diff --git a/jobs.h b/jobs.h
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index 4ba3513..6df0607 100644
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--- a/jobs.h
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+++ b/jobs.h
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@@ -190,6 +190,7 @@ extern JOB **jobs;
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extern void making_children __P((void));
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extern void stop_making_children __P((void));
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extern void cleanup_the_pipeline __P((void));
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+extern void discard_last_procsub_child __P((void));
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extern void save_pipeline __P((int));
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extern PROCESS *restore_pipeline __P((int));
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extern void start_pipeline __P((void));
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diff --git a/patchlevel.h b/patchlevel.h
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index e7e960c..c059f0b 100644
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--- a/patchlevel.h
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+++ b/patchlevel.h
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@@ -25,6 +25,6 @@
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regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
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looks for to find the patch level (for the sccs version string). */
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-#define PATCHLEVEL 3
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+#define PATCHLEVEL 4
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#endif /* _PATCHLEVEL_H_ */
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diff --git a/subst.c b/subst.c
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index 4d498ef..298187d 100644
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--- a/subst.c
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+++ b/subst.c
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@@ -5808,10 +5808,7 @@ process_substitute (string, open_for_read_in_child)
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{
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#if defined (JOB_CONTROL)
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if (last_procsub_child)
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- {
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- discard_pipeline (last_procsub_child);
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- last_procsub_child = (PROCESS *)NULL;
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- }
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+ discard_last_procsub_child ();
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last_procsub_child = restore_pipeline (0);
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#endif
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--
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2.9.3
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