我使用以下代码作为指南并修改了下面的代码。 http://bendecplusplus.googlecode.com/svn/trunk/ssl_mycode/epoll_ssl/server.chttp://bendecplusplus.googlecode.com/svn/trunk/ssl_mycode/epoll_ssl/client.c基于epoll的非阻塞ssl_read()卡在循环中
我已经修改了服务器端的代码如下:
do {
count = SSL_read (ssl, buf, sizeof(buf)); // get request
switch (SSL_get_error (ssl, count)) {
case SSL_ERROR_NONE:
buf[count] = 0;
printf("Client msg: \"%s\"\n", buf);
sprintf(reply, HTMLecho, buf); // construct reply
SSL_write(ssl, reply, strlen(reply)); // send reply
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
continue;
case SSL_ERROR_ZERO_RETURN:
ERR_print_errors_fp(stderr);
printf("Performing exchange Error 2.\n");
done = 1;
break;
default:
ERR_print_errors_fp(stderr);
printf("Performing exchange Error 3.\n");
done = 1;
break;
}
} while (ssl && count > 0); // SSL_pending(ssl) seems unreliable
在客户端我的代码如下:
SSL_library_init();
ctx = InitCTX();
LoadCertificates(ctx, CertFile, KeyFile);
server = OpenConnection(hostname, atoi(portnum));
ssl = SSL_new(ctx); /* create new SSL connection state */
SSL_set_fd(ssl, server); /* attach the socket descriptor */
if (SSL_connect(ssl) == FAIL) /* perform the connection */
{
ERR_print_errors_fp(stderr);
} else {
while(1){
char *msg = "Hello??? are you there. lolololololololoooooooooooooooooooooooooooo";
printf("Connected with %s encryption\n", SSL_get_cipher(ssl));
ShowCerts(ssl); /* get any certs */
SSL_write(ssl, msg, strlen(msg)); /* encrypt & send message */
bytes = SSL_read(ssl, buf, sizeof(buf)); /* get reply & decrypt */
buf[bytes] = 0;
printf("Received: \"%s\"\n", buf);
sleep(1);
}
SSL_free(ssl); /* release connection state */
}
close(server); /* close socket */
SSL_CTX_free(ctx); /* release context */
我观察被陷在环路在服务器端。任何指导表示赞赏。
什么玛丽安说,加'buf [字节] = 0;''看起来像一个缓冲区溢出,如果SSL_read填充buf。 –
确定,以便需要删除或减1.“err = SSL_read(ssl,buf,sizeof(buf) - 1); \t if(err <= 0) \t { \t \t close(sd); \t \t \t \t SSL_CTX_free(ctx); ERR_print_errors_fp(stderr); \t \t return 1; \t} buf [err] ='\ 0';' – enthusiasticgeek
@enthusiasticgeek - 请参阅[帮助中心](https://stackoverflow.com/about)和主题*通过编辑或评论*改进帖子。您试图放置在评论中的代码留下了很多不足之处...... – jww