int ssh_socket_connect_proxycommand(ssh_socket s, const char *command){
socket_t pair[2];
int pid;
int rc;
if (s->state != SSH_SOCKET_NONE) {
return SSH_ERROR;
}
rc = socketpair(PF_LOCAL, SOCK_STREAM, 0, pair);
if (rc < 0) {
return SSH_ERROR;
}
SSH_LOG(SSH_LOG_PROTOCOL,"Executing proxycommand '%s'",command);
pid = fork();
if(pid == 0){
ssh_execute_command(command,pair[0],pair[0]);
}
close(pair[0]);
SSH_LOG(SSH_LOG_PROTOCOL,"ProxyCommand connection pipe: [%d,%d]",pair[0],pair[1]);
ssh_socket_set_fd(s, pair[1]);
s->state=SSH_SOCKET_CONNECTED;
s->fd_is_socket=0;
/* POLLOUT is the event to wait for in a nonblocking connect */
ssh_poll_set_events(ssh_socket_get_poll_handle(s), POLLIN | POLLOUT);
if(s->callbacks && s->callbacks->connected) {
s->callbacks->connected(SSH_SOCKET_CONNECTED_OK,0,s->callbacks->userdata);
}
return SSH_OK;
}
int ssh_socket_connect_proxycommand(ssh_socket s, const char *command){
socket_t in_pipe[2];
socket_t out_pipe[2];
int pid;
int rc;
ssh_session session=s->session;
enter_function();
if(s->state != SSH_SOCKET_NONE)
return SSH_ERROR;
rc = pipe(in_pipe);
if (rc < 0) {
return SSH_ERROR;
}
rc = pipe(out_pipe);
if (rc < 0) {
return SSH_ERROR;
}
ssh_log(session,SSH_LOG_PROTOCOL,"Executing proxycommand '%s'",command);
pid = fork();
if(pid == 0){
ssh_execute_command(command,out_pipe[0],in_pipe[1]);
}
s->proxycommand_pid = pid;
close(in_pipe[1]);
close(out_pipe[0]);
ssh_log(session,SSH_LOG_PROTOCOL,"ProxyCommand connection pipe: [%d,%d]",in_pipe[0],out_pipe[1]);
ssh_socket_set_fd_in(s,in_pipe[0]);
ssh_socket_set_fd_out(s,out_pipe[1]);
s->state=SSH_SOCKET_CONNECTED;
s->fd_is_socket=0;
/* POLLOUT is the event to wait for in a nonblocking connect */
ssh_poll_set_events(ssh_socket_get_poll_handle_in(s),POLLIN | POLLERR);
ssh_poll_set_events(ssh_socket_get_poll_handle_out(s),POLLOUT);
if(s->callbacks && s->callbacks->connected)
s->callbacks->connected(SSH_SOCKET_CONNECTED_OK,0,s->callbacks->userdata);
leave_function();
return SSH_OK;
}