50 lines
1.6 KiB
Diff
50 lines
1.6 KiB
Diff
From 515c395bcca24c55c85b5aeea239e5e836c36059 Mon Sep 17 00:00:00 2001
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From: Tony Cook <tony@develop-help.com>
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Date: Wed, 23 Aug 2017 14:18:26 +1000
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Subject: [PATCH] (perl #131562) correct large line numbers copying eval lines
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on #line
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Previously this used I32 for line numbers, which takes half the range
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of line_t and folds it into negative numbers, leading to trying to store
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the lines at negative indexes.
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The while loop was also modified to stop storing if/when the line number
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no longer fits into cop_line, or no longer fits into SSize_t (as a
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positive number) since the index parameter to av_store() is a SSize_t.
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Signed-off-by: Petr Písař <ppisar@redhat.com>
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---
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toke.c | 10 +++++-----
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1 file changed, 5 insertions(+), 5 deletions(-)
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diff --git a/toke.c b/toke.c
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index de4ab2e652..5a3fe78472 100644
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--- a/toke.c
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+++ b/toke.c
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@@ -1829,14 +1829,14 @@ S_incline(pTHX_ const char *s, const char *end)
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}
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else if (GvAV(cfgv)) {
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AV * const av = GvAV(cfgv);
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- const I32 start = CopLINE(PL_curcop)+1;
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- I32 items = AvFILLp(av) - start;
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+ const line_t start = CopLINE(PL_curcop)+1;
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+ SSize_t items = AvFILLp(av) - start;
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if (items > 0) {
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AV * const av2 = GvAVn(gv2);
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SV **svp = AvARRAY(av) + start;
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- I32 l = (I32)line_num+1;
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- while (items--)
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- av_store(av2, l++, SvREFCNT_inc(*svp++));
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+ Size_t l = line_num+1;
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+ while (items-- && l < SSize_t_MAX && l == (line_t)l)
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+ av_store(av2, (SSize_t)l++, SvREFCNT_inc(*svp++));
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}
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}
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}
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--
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2.20.1
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