MFH socket fix

1 files changed, 8 insertions, 0 deletions

diff --git a/ext/standard/fsock.c b/ext/standard/fsock.c
index 70639dcdc8..05a65b39b5 100644
--- a/ext/standard/fsock.c
+++ b/ext/standard/fsock.c
@@ -478,6 +478,14 @@ static size_t php_sockread_internal(php_sockbuf *sock)
 	/* read at a maximum sock->chunk_size */
 	nr_bytes = recv(sock->socket, buf, sock->chunk_size, 0);
 	if(nr_bytes > 0) {
+
+		/* try to avoid ever expanding buffer */
+		if (sock->readpos > 0) {
+			memmove(sock->readbuf, READPTR(sock), sock->readbuflen - sock->readpos);
+			sock->writepos -= sock->readpos;
+			sock->readpos = 0;
+		}
+
 		if(sock->writepos + nr_bytes > sock->readbuflen) {
 			sock->readbuflen += sock->chunk_size;
 			sock->readbuf = perealloc(sock->readbuf, sock->readbuflen,