What is #include Netinet in H?

This variable is initialized by the system to contain the loopback IPv6 address. The header also defines the IN6ADDR_LOOPBACK_INIT macro. This macro must be constant at compile time and can be used to initialize a variable of type struct in6_addr to the IPv6 loopback address. The

What is SYS socket H?

h. The sys/socket. h header file contains sockets definitions. The structure sockaddr_storage is exposed by defining the feature test macro _OPEN_SYS_SOCK_IPV6 or _OPEN_SYS_SOCK_EXT3.

What is ARPA INET H?

The arpa/inet. h header file contains definitions for internet operations.

What is Netdb H?

The header defines the hostent structure that includes the following members: char *h_name /* official name of the host */ char **h_aliases /* pointer to an array of pointers to alternative host names, terminated by a null pointer */ int h_addrtype /* address type */ int h_length /* length, in bytes, of the …

What is Socklen_t?

socklen_t – an unsigned opaque integer type of length of at least 32-bits.

Why is SYS socket H used?

The header shall define the sockaddr structure that includes at least the following members: The sockaddr structure is used to define a socket address which is used in the bind(), connect(), getpeername(), getsockname(), recvfrom(), and sendto() functions. The

What is Inaddr_any?

This is an IP address that is used when we don’t want to bind a socket to any specific IP. When we don’t know the IP address of our machine, we can use the special IP address INADDR_ANY . It allows our server to receive packets that have been targeted by any of the interfaces.

What is Inet_addr?

The inet_addr function interprets the character string specified by the cp parameter. This string represents a numeric Internet address expressed in the Internet standard “. All Internet addresses are returned in IP’s network order (bytes ordered from left to right).

What is NetDB h in C?

The header defines the hostent structure that includes at least the following members: char *h_name Official name of the host. char **h_aliases A pointer to an array of pointers to alternative host names, terminated by a null pointer. int h_addrtype Address type.

What does Time H do?

The time. h header file contains definitions of functions to get and manipulate date and time information. It describes three time-related data types. clock_t: clock_t represents the date as an integer which is a part of the calendar time.

What is Sa_family_t?

sa_family_t sa_family Address family. char sa_data[] Socket address (variable-length data). The sockaddr structure is used to define a socket address which is used in the bind(), connect(), getpeername(), getsockname(), recvfrom(), and sendto() functions.

What is Ipproto_udp?

The socket() call creates an endpoint for communication and returns a socket descriptor representing the endpoint. The type of socket that is created, either SOCK_STREAM or SOCK_DGRAM. protocol. The protocol that is requested. Some possible values are 0 , IPPROTO_UDP, or IPPROTO_TCP.