You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.4 KiB
51 lines
1.4 KiB
From 9df34f9c4701104a366e768237ca694411136d2a Mon Sep 17 00:00:00 2001
|
|
From: Hugo van der Sanden <hv@crypt.org>
|
|
Date: Sun, 19 Feb 2017 10:46:09 +0000
|
|
Subject: [PATCH] update pointer into PL_linestr after lookahead
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Ported to: 5.24.1:
|
|
|
|
commit 90f2cc9a600117a49f8ee3e30cc681f062350c24
|
|
Author: Hugo van der Sanden <hv@crypt.org>
|
|
Date: Sun Feb 19 10:46:09 2017 +0000
|
|
|
|
[perl #130814] update pointer into PL_linestr after lookahead
|
|
|
|
Looking ahead for the "Missing $ on loop variable" diagnostic can reallocate
|
|
PL_linestr, invalidating our pointer. Save the offset so we can update it
|
|
in that case.
|
|
|
|
Signed-off-by: Petr Písař <ppisar@redhat.com>
|
|
---
|
|
toke.c | 4 ++++
|
|
1 file changed, 4 insertions(+)
|
|
|
|
diff --git a/toke.c b/toke.c
|
|
index 630fc59..029d2ea 100644
|
|
--- a/toke.c
|
|
+++ b/toke.c
|
|
@@ -7565,6 +7565,7 @@ Perl_yylex(pTHX)
|
|
s = skipspace(s);
|
|
if (PL_expect == XSTATE && isIDFIRST_lazy_if(s,UTF)) {
|
|
char *p = s;
|
|
+ SSize_t s_off = s - SvPVX(PL_linestr);
|
|
|
|
if ((PL_bufend - p) >= 3
|
|
&& strnEQ(p, "my", 2) && isSPACE(*(p + 2)))
|
|
@@ -7582,6 +7583,9 @@ Perl_yylex(pTHX)
|
|
}
|
|
if (*p != '$')
|
|
Perl_croak(aTHX_ "Missing $ on loop variable");
|
|
+
|
|
+ /* The buffer may have been reallocated, update s */
|
|
+ s = SvPVX(PL_linestr) + s_off;
|
|
}
|
|
OPERATOR(FOR);
|
|
|
|
--
|
|
2.7.4
|
|
|