/* Adjust reserved header if there is enough room */
if( p_block->p_buffer - i_prebody > p_sys->p_allocated_buffer &&
p_block->p_buffer - i_prebody < p_sys->p_allocated_buffer +
/* Adjust reserved header if there is enough room */
if( p_block->p_buffer - i_prebody > p_sys->p_allocated_buffer &&
p_block->p_buffer - i_prebody < p_sys->p_allocated_buffer +