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ntohs function

The ntohs function converts a u_short from TCP/IP network byte order to host byte order (which is little-endian on Intel processors).

Syntax


u_short WSAAPI ntohs(
  _In_  u_short netshort
);

Parameters

netshort [in]

A 16-bit number in TCP/IP network byte order.

Return value

The ntohs function returns the value in host byte order. If the netshort parameter is already in host byte order, then this function will reverse it. It is up to the application to determine if the byte order must be reversed.

Remarks

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.

The ntohs function does not require that the Winsock DLL has previously been loaded with a successful call to the WSAStartup function.

Windows 8.1 and Windows Server 2012 R2: This function is supported for Windows Store apps on Windows 8.1, Windows Server 2012 R2, and later.

Requirements

Minimum supported client

Windows 8.1, Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Winsock2.h

Library

Ws2_32.lib

DLL

Ws2_32.dll

See also

htond
htonf
htonl
htonll
htons
inet_addr
inet_ntoa
InetNtop
InetPton
ntohd
ntohf
ntohl
ntohll
WSAHtonl
WSAHtons
WSANtohl
WSANtohs

 

 

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