g_free(vs);
}
-ssize_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp)
+size_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp)
{
if (ret <= 0) {
if (ret == 0) {
*
* Returns the number of bytes written, which may be less than
* the requested 'datalen' if the socket would block. Returns
- * -1 on error, and disconnects the client socket.
+ * 0 on I/O error, and disconnects the client socket.
*/
-ssize_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen)
+size_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen)
{
Error *err = NULL;
ssize_t ret;
* will switch the FD poll() handler back to read monitoring.
*
* Returns the number of bytes written, which may be less than
- * the buffered output data if the socket would block. Returns
- * -1 on error, and disconnects the client socket.
+ * the buffered output data if the socket would block. Returns
+ * 0 on I/O error, and disconnects the client socket.
*/
-static ssize_t vnc_client_write_plain(VncState *vs)
+static size_t vnc_client_write_plain(VncState *vs)
{
size_t offset;
- ssize_t ret;
+ size_t ret;
#ifdef CONFIG_VNC_SASL
VNC_DEBUG("Write Plain: Pending output %p size %zd offset %zd. Wait SSF %d\n",
*
* Returns the number of bytes read, which may be less than
* the requested 'datalen' if the socket would block. Returns
- * -1 on error, and disconnects the client socket.
+ * 0 on I/O error or EOF, and disconnects the client socket.
*/
-ssize_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen)
+size_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen)
{
ssize_t ret;
Error *err = NULL;
* when not using any SASL SSF encryption layers. Will read as much
* data as possible without blocking.
*
- * Returns the number of bytes read. Returns -1 on error, and
- * disconnects the client socket.
+ * Returns the number of bytes read, which may be less than
+ * the requested 'datalen' if the socket would block. Returns
+ * 0 on I/O error or EOF, and disconnects the client socket.
*/
-static ssize_t vnc_client_read_plain(VncState *vs)
+static size_t vnc_client_read_plain(VncState *vs)
{
- ssize_t ret;
+ size_t ret;
VNC_DEBUG("Read plain %p size %zd offset %zd\n",
vs->input.buffer, vs->input.capacity, vs->input.offset);
buffer_reserve(&vs->input, 4096);
*/
static int vnc_client_read(VncState *vs)
{
- ssize_t ret;
+ size_t ret;
#ifdef CONFIG_VNC_SASL
if (vs->sasl.conn && vs->sasl.runSSF)
GIOCondition condition,
void *opaque);
-ssize_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen);
-ssize_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen);
+size_t vnc_client_read_buf(VncState *vs, uint8_t *data, size_t datalen);
+size_t vnc_client_write_buf(VncState *vs, const uint8_t *data, size_t datalen);
/* Protocol I/O functions */
void vnc_write(VncState *vs, const void *data, size_t len);
/* Protocol stage functions */
void vnc_client_error(VncState *vs);
-ssize_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp);
+size_t vnc_client_io_error(VncState *vs, ssize_t ret, Error **errp);
void start_client_init(VncState *vs);
void start_auth_vnc(VncState *vs);