What is Ntohs?

What is Ntohs?

The ntohs() function converts a 16-bit value from network-byte order to host-byte order. If a machine’s byte order is the same as the network order, this routine is defined as a null macro. You most often use this routine in conjunction with internet addresses and ports returned by gethostbyname() and getservent().

What is Ntohs in socket programming?

The ntohs function takes a 16-bit number in TCP/IP network byte order (the AF_INET or AF_INET6 address family) and returns a 16-bit number in host byte order. The ntohs function can be used to convert an IP port number in network byte order to the IP port number in host byte order.

Where is Ntohs defined?

The ntohs macro is defined in the h> header file.

What is Htons C?

General description. The htons() function translates a short integer from host byte order to network byte order. Parameter Description a. The unsigned short integer to be put into network byte order.

What is Htonl C?

The htonl() function converts the unsigned integer hostlong from host byte order to network byte order. On the i386 the host byte order is Least Significant Byte first, whereas the network byte order, as used on the Internet, is Most Significant Byte first.

What do you mean by byte ordering?

Byte order refers to the order of digits in computer words at least 16 bits long. See word. Big Endian and Little Endian. Big endian is how we normally deal with numbers: the most significant byte or digits are placed leftmost in the structure (the big end).

What is little endian byte order?

Little Endian byte ordering is defined as follows: In a binary number consisting of multiple bytes (e.g., a 32-bit unsigned integer value, the Group Number, the Element Number, etc.), the least significant byte shall be encoded first; with the remaining bytes encoded in increasing order of significance.

What is iterative and concurrent server?

An iterative server iterates through each client, handling it one at a time. A concurrent server handles multiple clients at the same time. When a connection is established, accept returns, the server calls fork, and the child process services the client (on the connected socket connfd).

Why is Htons used?

The htons function can be used to convert an IP port number in host byte order to the IP port number in network byte order.

How does the ntohl function in Linux work?

The ntohl () function converts the unsigned integer netlong from network byte order to host byte order. The ntohs () function converts the unsigned short integer netshort from network byte order to host byte order.

How is ntohs translated to host byte order?

The ntohs () function translates a short integer from network byte order to host byte order. The unsigned short integer to be put into host byte order. Is typed to the unsigned short integer to be put into host byte order. For MVS™ , host byte order and network byte order are the same.

How does the htons function in Linux work?

The htons () function converts the unsigned short integer hostshort from host byte order to network byte order. The ntohl () function converts the unsigned integer netlong from network byte order to host byte order.

How does htonl convert hostlong to host byte?

The htonl () function converts the unsigned integer hostlong from host byte order to network byte order. The htons () function converts the unsigned short integer hostshort from host byte order to network byte order. The ntohl () function converts the unsigned integer netlong from network byte order to host byte order.