From: Nikita Popov <nikic@php.net>
Date: Sun, 8 Jan 2017 12:47:20 +0000 (+0100)
Subject: deflate_add(): Don't add unnecessary +1 to size
X-Git-Tag: php-7.1.2RC1~122^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b36f4ac7089a05682081385cb4e6c1051cba9bc1;p=php

deflate_add(): Don't add unnecessary +1 to size

zend_string_realloc will do this by itself.
---

diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c
index c90c109b72..5c558ea6a6 100644
--- a/ext/zlib/zlib.c
+++ b/ext/zlib/zlib.c
@@ -1171,8 +1171,7 @@ PHP_FUNCTION(deflate_add)
 		if (ctx->avail_out == 0) {
 			/* more output buffer space needed; realloc and try again */
 			/* adding 64 more bytes solved every issue I have seen    */
-			/* the + 1 is for the string terminator added below */
-			out = zend_string_realloc(out, ZSTR_LEN(out) + 64 + 1, 0);
+			out = zend_string_realloc(out, ZSTR_LEN(out) + 64, 0);
 			ctx->avail_out = 64;
 			ctx->next_out = (Bytef *) ZSTR_VAL(out) + buffer_used;
 		}