Where is "sin_family" in struct sockaddr_in - /usr/include/netinet/in.h?

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I'm new networking socket in c programming. And I'm trying to make a simple sever - client. The following is what I want to have :

...
//Binding to a port
struct sockaddr_in name;
name.sin_family = PF_INET;
name.sin_port = (in_port_t)htons(30000);
name.sin_addr.s_addr = htonl(INADDR_ANY);
...

Where is sin_family - /usr/include/netinet/in.h - Linux ? If you are a pro, please tell me know what I need to do.

asked 1 min ago

luckybc

1

Where is "sin_family" in struct sockaddr_in - /usr/include/netinet/in.h?