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Note The IPaddr type definition in IP Helper also represents an IPv4 address and can be cast to an interchangeable in_addr structure when needed. The in_addr structure in IP Helper has the same syntax and usage as the Windows Sockets in_addr structure, and is interchangeable with in_addr structure used in Windows sockets. Windows sockets also defines an IN_ADDR typedef for the in_addr structure.
INADDR_ANY Does not create a random IP addresses, but rather it creates a special constant (0.0.0.0 in IPv4) used to indicate that the socket should bind to all available network interfaces. This allows the server to accept connections on any of the host's IP addresses. For which INADDR_ANY is a predefined constant, already in Network-Byte-Order.
A packet addressed to INADDR_BROADCAST through a socket which has SO_BROADCAST set will be broadcast to all hosts on the local network segment, as long as the link is broadcast-capable. Highest-numbered address Lowest-numbered address On any locally-attached non-point-to-point IP subnet with a link type that supports broadcasts, the highest ...
sockaddr_in serverAddress; serverAddress.sin_family = AF_INET; serverAddress.sin_port = htons(8080); serverAddress.sin_addr.s_addr = INADDR_ANY; here, sockaddr_in: It is the data type that is used to store the address of the socket. htons(): This function is used to convert the unsigned int from machine byte order to network byte order.
In this article. This header is used by multiple technologies. For more information, see: IP Helper; Network Drivers, Windows Vista and Later; Windows Sockets 2
In network programming, it's common to pass INADDR_ANY (or IN6ADDR_ANY) as part of the second argument to bind(), telling the networking stack that you want the socket to receive connections/traffic from any network interface that the machine happens to have.Many programs do this, as it is often the most useful behavior. The other common option is to specify a single network interface to bind ...
Macro: uint32_t INADDR_ANY ¶ You can use this constant to stand for "any incoming address" when binding to an address. See Setting the Address of a Socket. This is the usual address to give in the sin_addr member of struct sockaddr_in when you want to accept Internet connections. Macro: uint32_t INADDR_BROADCAST ¶
The returned socket address will contain the "wildcard address" (INADDR_ANY for IPv4 addresses, IN6ADDR_ANY_INIT for IPv6 address). The wildcard address is used by applications (typically servers) that intend to accept connections on any of the host's network addresses.
8.2 The IP address Up: 8 Special IP addresses Previous: 8 Special IP addresses 8.1 The IP address INADDR_ANY. When you wrote your simple FTP server in project 1, you probably bound your listening socket to the special IP address INADDR_ANY.This allowed your program to work without knowing the IP address of the machine it was running on, or, in the case of a machine with multiple network ...
When INADDR_ANY is given as the address in a bind call, this causes the socket to listen on the given port for any network interface.. After calling bind in this way, you'll see an entry like this in the output of the netstat command:. udp 0 0 0.0.0.0:46162 0.0.0.0:* This is a UDP socket that was bound to INADDR_ANY with port 46162. ...