libssh2_channel_x11_req_ex - Man Page

request an X11 forwarding channel


#include <libssh2.h>

int libssh2_channel_x11_req_ex(LIBSSH2_CHANNEL *channel, int single_connection, const char *auth_proto, const char *auth_cookie, int screen_number);

int libssh2_channel_x11_req(LIBSSH2_CHANNEL *channel, int screen_number);


channel - Previously opened channel instance such as returned by libssh2_channel_open_ex(3)

single_connection - non-zero to only forward a single connection.

auth_proto - X11 authentication protocol to use

auth_cookie - the cookie (hexadecimal encoded).

screen_number - the XLL screen to forward

Request an X11 forwarding on channel. To use X11 forwarding, libssh2_session_callback_set(3) must first be called to set LIBSSH2_CALLBACK_X11. This callback will be invoked when the remote host accepts the X11 forwarding.

Return Value

Return 0 on success or negative on failure.  It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative number, it isn't really a failure per se.


LIBSSH2_ERROR_ALLOC -  An internal memory allocation call failed.

LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.


See Also

libssh2_channel_open_ex(3) libssh2_session_callback_set(3)

Referenced By


1 Jun 2007 libssh2 0.15 libssh2 manual