csp->expected_client_content_length, buffered_request_bytes);
assert(csp->expected_client_content_length == buffered_request_bytes);
if (write_socket(sfd, csp->client_iob->cur, buffered_request_bytes))
csp->expected_client_content_length, buffered_request_bytes);
assert(csp->expected_client_content_length == buffered_request_bytes);
if (write_socket(sfd, csp->client_iob->cur, buffered_request_bytes))