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fix: send_param_adapter(): do not send chunks larger than requested when using sendfile()

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This commit is contained in:
Evgeny Grin (Karlson2k)
2015-06-08 22:18:30 +00:00
parent d4168c4478
commit b218fd29ff
1 changed files with 5 additions and 5 deletions
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src/microhttpd/daemon.c
+5 -5
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@@ -1107,15 +1107,15 @@ send_param_adapter (struct MHD_Connection *connection,
/* can use sendfile */
offset = (off_t) connection->response_write_position + connection->response->fd_off;
left = connection->response->total_size - connection->response_write_position;
if (left > SSIZE_MAX)
left = SSIZE_MAX; /* cap at return value limit */
if (-1 != (ret = sendfile (connection->socket_fd,
if (i > left)
i = left;
if (0 < (ret = sendfile (connection->socket_fd,
fd,
&offset,
(size_t) left)))
i)))
{
#if EPOLL_SUPPORT
if (ret < left)
if (requested_size > (size_t) ret)
{
/* partial write --- no longer write-ready */
connection->epoll_state &= ~MHD_EPOLL_STATE_WRITE_READY;