Dear Team,

I'm testing with wolfssl to integrate with my project and for that i've written small code to connect with server. but, not able to connect.

Whereas, while i'm using examples/client/client.c file then connection is getting success with my certificate.
Kindly suggest the answer.

My code :
int sockfd, err;
    char errorString[80];

    WOLFSSL_CTX* ctx;
    WOLFSSL* ssl;
    WOLFSSL_METHOD* method;
    struct  sockaddr_in servAddr;
    const char message[] = "Hello, World!";

    /* create and set up socket */
    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    printf("Socket created ID:%d \n",sockfd);
    memset(&servAddr, 0, sizeof(servAddr));
    servAddr.sin_family = AF_INET;   
    servAddr.sin_addr.s_addr = inet_addr("66.83.75.170");
    servAddr.sin_port = htons(SERV_PORT);
            
    wolfSSL_Debugging_ON();   
    /* initialize wolfssl library */
    wolfSSL_Init();
    method = wolfTLSv1_2_client_method(); /* use TLS v1.2 */
   
    /* make new ssl context */
    if ( (ctx = wolfSSL_CTX_new(method)) == NULL) {
        err_sys("wolfSSL_CTX_new error\n");
    }
   
    if (wolfSSL_CTX_use_certificate_chain_file(ctx, "certtest/Demo_Cert.pem") != SSL_SUCCESS) {
            wolfSSL_CTX_free(ctx);
            err_sys("can't load client cert file, check file and run from"
                    " wolfSSL home dir");
        }
   
       if (wolfSSL_CTX_use_PrivateKey_file(ctx, "certs/ca-key.pem", SSL_FILETYPE_PEM) != SSL_SUCCESS) {
            wolfSSL_CTX_free(ctx);
            err_sys("can't load client private key file, check file and run "
                    "from wolfSSL home dir");
        }
   
    wolfSSL_CTX_set_cipher_list(ctx,"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256");
   
    /* Add cert to ctx  Symantec_C3_G3.pem*/
    if (wolfSSL_CTX_load_verify_locations(ctx, "certtest/Comodo_Root.pem", 0) != SSL_SUCCESS) {
    wolfSSL_CTX_free(ctx);
        err_sys("Error loading certtest/Comodo_Root.pem\n");
    }
   
   
   
    wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,0);
   
    /* make new wolfSSL struct */
    if ( (ssl = wolfSSL_new(ctx)) == NULL) {
        err_sys("wolfSSL_new error\n");
    }
       
                                 
    /* connect to socket */
    int conn = connect(sockfd, (struct sockaddr *) &servAddr, sizeof(servAddr));
    if(conn < 0)
    {
    wolfSSL_CTX_free(ctx);
    printf("TCP Connect error:%d\n",conn);
    err_sys("TCP Connect error return\n");
    }
   /* Connect wolfssl to the socket, server, then send message */
    if (wolfSSL_set_fd(ssl, sockfd) != SSL_SUCCESS) {
        wolfSSL_free(ssl);
        wolfSSL_CTX_free(ctx);
        err_sys("error in setting fd");
    }
   
    int Ret = wolfSSL_connect(ssl);
    if(Ret != SSL_SUCCESS)
    {
    printf("WolfSSL Test steps 8 \n");
       
    err = wolfSSL_get_error(ssl, 0);
    wolfSSL_ERR_error_string(err, errorString);
    printf("WolfSSL connect error :%d, %s\n",Ret,errorString);
    }
   
    if(Ret == SSL_SUCCESS)
        wolfSSL_write(ssl, message, strlen(message));

    /* frees all data before client termination */
    wolfSSL_free(ssl);
    wolfSSL_CTX_free(ctx);
    wolfSSL_Cleanup();

Getting error 40 & -313

but, if i used the examples/client/client.c like below then getting success.

./examples/client/client -h 65.124.118.187 -p 443 -c ./certtest/Demo_Cert.pem -A ./certtest/Comodo_Root.pem -d

Kindly suggest the mistake in my code. I'm attaching the test certificate.

Regards,
Sanjay