Partager via


gethostname (Compact 2013)

3/26/2014

This function returns the standard host name for the local machine.

Syntax

int gethostname(
  char FAR* name,
  int namelen
);

Parameters

  • name
    [out] Pointer to a buffer that receives the local host name.
  • namelen
    [in] Length of the buffer.

Return Value

If no error occurs, this function returns zero. If an error occurs, it returns SOCKET_ERROR, and a specific error code can be retrieved by calling WSAGetLastError.

The following table shows the possible error codes.

Error code

Description

WSAEFAULT

The name parameter is not a valid part of the user address space, or the buffer size specified by the namelen parameter is too small to hold the complete host name.

WSANOTINITIALISED

A successful WSAStartup call must occur before using this function.

WSAENETDOWN

The network subsystem has failed.

WSAEINPROGRESS

A blocking Winsock call is in progress, or the service provider is still processing a callback function.

Remarks

This function returns the name of the local host into the buffer specified by the name parameter. The host name is returned as a null-terminated string. The form of the host name is dependent on the Windows Sockets provider. It can be a simple host name or a fully qualified domain name. However, it is guaranteed that the name returned will be successfully parsed by getaddrinfo.

Note

If no local host name has been configured, gethostname must succeed and return a token host name that getaddrinfo can resolve.

Requirements

Header

winsock2.h

Library

Ws2.lib

See Also

Reference

Socket Functions
getaddrinfo
WSAGetLastError
WSAStartup