From c27f012b7a447e59d4a704688971cbfa7dddaa74 Mon Sep 17 00:00:00 2001

From: Stanislav Malyshev <stas@php.net>

Date: Wed, 29 Apr 2015 22:04:20 -0700

Subject: [PATCH] Fix bug #69453 - don't try to cut empty string

---

 ext/phar/tar.c               |  2 +-

 ext/phar/tests/bug69453.phpt | 21 +++++++++++++++++++++

 2 files changed, 22 insertions(+), 1 deletion(-)

 create mode 100644 ext/phar/tests/bug69453.phpt

diff --git a/ext/phar/tar.c b/ext/phar/tar.c

index ca8eafc..d6d63e6 100644

--- a/ext/phar/tar.c

+++ b/ext/phar/tar.c

@@ -425,7 +425,7 @@ bail:

 			entry.filename_len = i;

 			entry.filename = pestrndup(hdr->name, i, myphar->is_persistent);

-			if (entry.filename[entry.filename_len - 1] == '/') {

+			if (i > 0 && entry.filename[entry.filename_len - 1] == '/') {

 				/* some tar programs store directories with trailing slash */

 				entry.filename[entry.filename_len - 1] = '\0';

 				entry.filename_len--;

-- 

2.1.4