LIBSSH2_CHANNEL * libssh2_scp_recv(LIBSSH2_SESSION *session, const char *path, struct stat *sb);
session - Session instance as returned by libssh2_session_init_ex(3)
path - Full path and filename of file to transfer. That is the remote file name.
sb - Populated with remote file's size, mode, mtime, and atime
Request a file from the remote host via SCP.
LIBSSH2_ERROR_SCP_PROTOCOL -
LIBSSH2_ERROR_EAGAIN - Marked for non-blocking I/O but the call would block.