From 9d82a7dc9844281b17a4e20c744dd0271c657e51 Mon Sep 17 00:00:00 2001
From: Anatol Belski <ab@php.net>
Date: Mon, 31 Aug 2015 21:48:14 +0200
Subject: add overflow check

---
 main/streams/plain_wrapper.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'main/streams/plain_wrapper.c')

diff --git a/main/streams/plain_wrapper.c b/main/streams/plain_wrapper.c
index 101fe4aa53..066f7789a7 100644
--- a/main/streams/plain_wrapper.c
+++ b/main/streams/plain_wrapper.c
@@ -336,7 +336,11 @@ static size_t php_stdiop_write(php_stream *stream, const char *buf, size_t count
 
 	if (data->fd >= 0) {
 #ifdef PHP_WIN32
-		int bytes_written = write(data->fd, buf, (unsigned int)count);
+		int bytes_written;
+		if (ZEND_SIZE_T_UINT_OVFL(count)) {
+			count = UINT_MAX;
+		}
+		bytes_written = _write(data->fd, buf, (unsigned int)count);
 #else
 		int bytes_written = write(data->fd, buf, count);
 #endif
-- 
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