From: Nicholas Clark <nick@ccl4.org>
Date: Sun, 13 Jun 2010 07:50:00 +0000 (+0100)
Subject: In pp_eof, ensure stack space for the second argument to the tied EOF method.
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=2116934e2bf4f3c1445ea039e29ff377c3de2648;p=p5sagit%2Fp5-mst-13.2.git

In pp_eof, ensure stack space for the second argument to the tied EOF method.

Commit 32e653230c7ccc7f added this second argument, but didn't verify that the
stack always had sufficient space for it.
---

diff --git a/pp_sys.c b/pp_sys.c
index 3525bfe..44b8cf4 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -2031,6 +2031,7 @@ PP(pp_eof)
 	 * 1 = eof(FH)
 	 * 2 = eof()  <- ARGV magic
 	 */
+	EXTEND(SP, 1);
 	if (MAXARG)
 	    mPUSHi(1);		/* 1 = eof(FH) - simple, explicit FH */
 	else if (PL_op->op_flags & OPf_SPECIAL)