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WSAHtons (Compact 2013)

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3/26/2014

This function converts a u_short from host byte order to network byte order.

Syntax

int WSAHtons(
  SOCKET s,
  u_short hostshort,
  u_short FAR* lpnetshort
);

Parameters

  • s
    [in] Descriptor identifying a socket.
  • hostshort
    [in] 16-bit number in host byte order.
  • lpnetshort
    [out] Pointer to a 16-bit number in network byte order.

Return Value

If no error occurs, this function returns zero. If an error occurs, a value of SOCKET_ERROR is returned, and a specific error code can be retrieved by calling the WSAGetLastError function.

The following table shows the possible error codes.

Error code

Description

WSANOTINITIALISED

A successful WSAStartup call must occur before using this function.

WSAENETDOWN

The network subsystem has failed.

WSAENOTSOCK

The descriptor is not a socket.

WSAEFAULT

The lpnetshort parameter is not completely contained in a valid part of the user address space.

Remarks

This function takes a 16-bit number in host byte order and returns a 16-bit number pointed to by the lpnetshort parameter in the network byte order associated with socket s.

Requirements

Header

winsock2.h

Library

Ws2.lib

See Also

Reference

Windows-Specific Extension Functions
htonl
htons
ntohl
ntohs
WSAHtonl
WSANtohl
WSANtohs
WSAGetLastError
WSAStartup