inet_ntop() 不打印 url

Question

I believe the inet_ntop() is supposed to convert a struct sockaddr address to a string, currently I have :

 sin_size = sizeof their_addr;

 new_fd = accept(sockfd, (struct sockaddr *)&their_addr, &sin_size);

 inet_ntop(AF_INET6, &(((struct sockaddr_in6 *)&their_addr)->sin6_addr), s, sizeof s);

 printf("server: got connection from %s\n", s);

If I make a connection from http://localhost:3490/thispage.html, I expect the code to print out http://localhost:3490/thispage.html but all it prints out is "server: got connection from ::1".

I don't understand why this is happening - basically what I'm trying to do is get the html page name from the url and I wanted to extract it from the returned string, but the string is not returning what I was expected.

Answer 1

The inet_ntop function takes a structure containing an IP address and converts it to a string format. It doesn't know anything about URLs.

When accept returns, all that's happened at this point is that a TCP connection was made, and their_addr contains the IP address of the endpoint which connected, in this case ::1, which is what is printed.

You need to further read from the socket, which presumably contains HTTP, to learn what URL was called.