原始套接字中的连接功能? [英] Connect function in raw socket?

问题描述

我正在尝试在 C 中启动 TCP 三向握手.但是，我想到 connect 可能已经建立了这样的连接或以某种方式进行了干扰.每当调用它的套接字设置了 IPPROTO_TCP 选项时，connect 是否会自动建立 TCP 连接?

I am trying to initiate a TCP Three-Way-Handshake in C. However, it occurred to me that connect may already be establishing such a connection or in some way interfering. Does connect automatically establish a TCP connection whenever the socket it's called on has the IPPROTO_TCP option set?

推荐答案

是的，IPPROTO_TCP 创建 TCP 套接字.要使用原始套接字，您需要将 SOCK_RAW 作为第二个参数传递给 socket 函数.

Yes, IPPROTO_TCP creates TCP socket. To use raw socket, you need to pass SOCK_RAW as second argument to the socket function.

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