#include <libssh2.h> int libssh2_channel_process_startup(LIBSSH2_CHANNEL *channel, const char *request, unsigned int request_len, const char *message, unsigned int message_len);
request - Type of process to startup. The SSH2 protocol currently defines shell, exec, and subsystem as standard process services.
request_len - Length of request parameter.
message - Request specific message data to include.
message_len - Length of message parameter.
Initiate a request on a session type channel such as returned by libssh2_channel_open_ex(3)
LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.
LIBSSH2_ERROR_CHANNEL_REQUEST_DENIED -