Chapter 2. API Reference
ESP_ERR_ESP_TLS_CANNOT_RESOLVE_HOSTNAME (0x8001): Error if hostname couldn’t be resolved upon
tls connection
ESP_ERR_ESP_TLS_CANNOT_CREATE_SOCKET (0x8002): Failed to create socket
ESP_ERR_ESP_TLS_UNSUPPORTED_PROTOCOL_FAMILY (0x8003): Unsupported protocol family
ESP_ERR_ESP_TLS_FAILED_CONNECT_TO_HOST (0x8004): Failed to connect to host
ESP_ERR_ESP_TLS_SOCKET_SETOPT_FAILED (0x8005): failed to set/get socket option
ESP_ERR_ESP_TLS_CONNECTION_TIMEOUT (0x8006): new connection in esp_tls_low_level_conn connec-
tion timeouted
ESP_ERR_ESP_TLS_SE_FAILED (0x8007)
ESP_ERR_ESP_TLS_TCP_CLOSED_FIN (0x8008)
ESP_ERR_MBEDTLS_CERT_PARTLY_OK (0x8010): mbedtls parse certificates was partly successful
ESP_ERR_MBEDTLS_CTR_DRBG_SEED_FAILED (0x8011): mbedtls api returned error
ESP_ERR_MBEDTLS_SSL_SET_HOSTNAME_FAILED (0x8012): mbedtls api returned error
ESP_ERR_MBEDTLS_SSL_CONFIG_DEFAULTS_FAILED (0x8013): mbedtls api returned error
ESP_ERR_MBEDTLS_SSL_CONF_ALPN_PROTOCOLS_FAILED (0x8014): mbedtls api returned error
ESP_ERR_MBEDTLS_X509_CRT_PARSE_FAILED (0x8015): mbedtls api returned error
ESP_ERR_MBEDTLS_SSL_CONF_OWN_CERT_FAILED (0x8016): mbedtls api returned error
ESP_ERR_MBEDTLS_SSL_SETUP_FAILED (0x8017): mbedtls api returned error
ESP_ERR_MBEDTLS_SSL_WRITE_FAILED (0x8018): mbedtls api returned error
ESP_ERR_MBEDTLS_PK_PARSE_KEY_FAILED (0x8019): mbedtls api returned failed
ESP_ERR_MBEDTLS_SSL_HANDSHAKE_FAILED (0x801a): mbedtls api returned failed
ESP_ERR_MBEDTLS_SSL_CONF_PSK_FAILED (0x801b): mbedtls api returned failed
ESP_ERR_MBEDTLS_SSL_TICKET_SETUP_FAILED (0x801c): mbedtls api returned failed
ESP_ERR_WOLFSSL_SSL_SET_HOSTNAME_FAILED (0x8031): wolfSSL api returned error
ESP_ERR_WOLFSSL_SSL_CONF_ALPN_PROTOCOLS_FAILED (0x8032): wolfSSL api returned error
ESP_ERR_WOLFSSL_CERT_VERIFY_SETUP_FAILED (0x8033): wolfSSL api returned error
ESP_ERR_WOLFSSL_KEY_VERIFY_SETUP_FAILED (0x8034): wolfSSL api returned error
ESP_ERR_WOLFSSL_SSL_HANDSHAKE_FAILED (0x8035): wolfSSL api returned failed
ESP_ERR_WOLFSSL_CTX_SETUP_FAILED (0x8036): wolfSSL api returned failed
ESP_ERR_WOLFSSL_SSL_SETUP_FAILED (0x8037): wolfSSL api returned failed
ESP_ERR_WOLFSSL_SSL_WRITE_FAILED (0x8038): wolfSSL api returned failed
ESP_ERR_HTTPS_OTA_BASE (0x9000)
ESP_ERR_HTTPS_OTA_IN_PROGRESS (0x9001)
ESP_ERR_PING_BASE (0xa000)
ESP_ERR_PING_INVALID_PARAMS (0xa001)
ESP_ERR_PING_NO_MEM (0xa002)
ESP_ERR_HTTPD_BASE (0xb000): Starting number of HTTPD error codes
ESP_ERR_HTTPD_HANDLERS_FULL (0xb001): All slots for registering URI handlers have been consumed
ESP_ERR_HTTPD_HANDLER_EXISTS (0xb002): URI handler with same method and target URI already regis-
tered
Espressif Systems 1247
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