Espressif Systems ESP8266EX - Page 37

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3. Sample Codes
const󰲧char󰲧*common_name󰲧=󰲧ssl_get_cert_dn(ssl,SSL_X509_CERT_COMMON_NAME);
if󰲧(common_name){
󰲧󰲧󰲧󰲧printf("Common󰲧Name:\t\t\t%s\n",󰲧common_name);
}
display_session_id(ssl);
display_cipher(ssl);
quiet󰲧=󰲧true;
os_printf("client󰲧handshake󰲧ok!󰲧heapsize󰲧%d\n",system_get_free_heap_size());
x509_free(ssl->x509_ctx);
ssl->x509_ctx=NULL;
os_printf("certificate󰲧free󰲧ok!󰲧heapsize󰲧%d\n”,system_get_free_heap_size());
10.Transmit SSL data.
uint8󰲧buf[512];
bzero(buf,󰲧sizeof(buf));
sprintf(buf,httphead,"/",󰲧"iot.espressif.cn",port);
os_printf("%s\n",󰲧buf);
if(ssl_write(ssl,󰲧buf,󰲧strlen(buf)+1)󰲧<󰲧0)󰲧{
󰲧󰲧󰲧󰲧ssl_free(ssl);
󰲧󰲧󰲧󰲧ssl_ctx_free(ssl_ctx);
󰲧󰲧󰲧󰲧close(client_fd);
󰲧󰲧󰲧󰲧vTaskDelay(1000󰲧/󰲧portTICK_RATE_MS);
󰲧󰲧󰲧󰲧os_printf("send󰲧fail\n");
󰲧󰲧󰲧󰲧continue;
}
11.Receive SSL data.
while((recbytes󰲧=󰲧ssl_read(ssl,󰲧&read_buf))󰲧>=󰲧0)󰲧{
󰲧󰲧󰲧󰲧if(recbytes󰲧==󰲧0){
󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧vTaskDelay(500󰲧/󰲧portTICK_RATE_MS);
󰲧󰲧󰲧󰲧󰲧󰲧󰲧󰲧continue;
󰲧󰲧󰲧󰲧}
󰲧󰲧󰲧󰲧os_printf("%s\n",󰲧read_buf);
}
free(read_buf);
if(recbytes󰲧<󰲧0)󰲧{
󰲧󰲧󰲧󰲧os_printf("ERROR:read󰲧data󰲧fail!󰲧recbytes󰲧%d\r\n",recbytes);
󰲧󰲧󰲧󰲧ssl_free(ssl);
󰲧󰲧󰲧󰲧ssl_ctx_free(ssl_ctx);
Espressif
! /!33 37
2017.05