



#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include <openssl/conf.h>

int main(int argc, char *argv[])
{
    unsigned char buf[512];
    char *port = "*:4433";
    BIO *in = NULL;
    BIO *ssl_bio, *tmp;
    SSL_CTX *ctx;
    int ret = EXIT_FAILURE, i;

    ctx = SSL_CTX_new(TLS_server_method());

    if (CONF_modules_load_file("cmod.cnf", "testapp", 0) <= 0) {
        fprintf(stderr, "Error processing config file\n");
        goto err;
    }

    if (SSL_CTX_config(ctx, "server") == 0) {
        fprintf(stderr, "Error configuring server.\n");
        goto err;
    }

    
    ssl_bio = BIO_new_ssl(ctx, 0);

    if ((in = BIO_new_accept(port)) == NULL)
        goto err;

    
    BIO_set_accept_bios(in, ssl_bio);

 again:
    

    if (BIO_do_accept(in) <= 0)
        goto err;

    for (;;) {
        i = BIO_read(in, buf, sizeof(buf));
        if (i == 0) {
            
            printf("Done\n");
            tmp = BIO_pop(in);
            BIO_free_all(tmp);
            goto again;
        }
        if (i < 0) {
            if (BIO_should_retry(in))
                continue;
            goto err;
        }
        fwrite(buf, 1, i, stdout);
        fflush(stdout);
    }

    ret = EXIT_SUCCESS;
 err:
    if (ret != EXIT_SUCCESS)
        ERR_print_errors_fp(stderr);
    BIO_free(in);
    return ret;
}
