# DP: readline63-002 upstream patch
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READLINE PATCH REPORT
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=====================
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Readline-Release: 6.3
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Patch-ID: readline63-002
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Bug-Reported-by: Anatol Pomozov <anatol.pomozov@gmail.com>
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Bug-Reference-ID: <CAOMFOmXy3mT2So5GQ5F-smCVArQuAeBwZ2QKzgCtMeXJoDeYOQ@mail.gmail.com>
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-readline/2014-03/msg00010.html
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Bug-Description:
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When in callback mode, some readline commands can cause readline to seg
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fault by passing invalid contexts to callback functions.
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Patch (apply with `patch -p0'):
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Index: b/readline.c
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===================================================================
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--- a/readline.c
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+++ b/readline.c
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@@ -744,7 +744,8 @@ _rl_dispatch_callback (cxt)
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r = _rl_subseq_result (r, cxt->oldmap, cxt->okey, (cxt->flags & KSEQ_SUBSEQ));
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RL_CHECK_SIGNALS ();
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- if (r == 0) /* success! */
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+ /* We only treat values < 0 specially to simulate recursion. */
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+ if (r >= 0 || (r == -1 && (cxt->flags & KSEQ_SUBSEQ) == 0)) /* success! or failure! */
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{
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_rl_keyseq_chain_dispose ();
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RL_UNSETSTATE (RL_STATE_MULTIKEY);
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