int tls_construct_cert_status(SSL *s)
{
- unsigned char *p;
- size_t msglen;
-
- /*-
- * Grow buffer if need be: the length calculation is as
- * follows handshake_header_length +
- * 1 (ocsp response type) + 3 (ocsp response length)
- * + (ocsp response)
- */
- msglen = 4 + s->tlsext_ocsp_resplen;
- if (!BUF_MEM_grow(s->init_buf, SSL_HM_HEADER_LENGTH(s) + msglen))
- goto err;
-
- p = ssl_handshake_start(s);
-
- /* status type */
- *(p++) = s->tlsext_status_type;
- /* length of OCSP response */
- l2n3(s->tlsext_ocsp_resplen, p);
- /* actual response */
- memcpy(p, s->tlsext_ocsp_resp, s->tlsext_ocsp_resplen);
+ WPACKET pkt;
- if (!ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE_STATUS, msglen))
- goto err;
+ if (!WPACKET_init(&pkt, s->init_buf)
+ || !ssl_set_handshake_header2(s, &pkt,
+ SSL3_MT_CERTIFICATE_STATUS)
+ || !WPACKET_put_bytes_u8(&pkt, s->tlsext_status_type)
+ || !WPACKET_sub_memcpy_u24(&pkt, s->tlsext_ocsp_resp,
+ s->tlsext_ocsp_resplen)
+ || !ssl_close_construct_packet(s, &pkt)) {
+ SSLerr(SSL_F_TLS_CONSTRUCT_CERT_STATUS, ERR_R_INTERNAL_ERROR);
+ ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
+ ossl_statem_set_error(s);
+ WPACKET_cleanup(&pkt);
+ return 0;
+ }
return 1;
-
- err:
- ossl_statem_set_error(s);
- return 0;
}
#ifndef OPENSSL_NO_NEXTPROTONEG