uefi/linaro-edk2/StdLib/BsdSocketLib/gethostname.c

/*
 * Copyright (c) 1999, 2000
 * Intel Corporation.
 * All rights reserved.
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 * are permitted provided that the following conditions are met:
 * 
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * 3. All advertising materials mentioning features or use of this software must
 *    display the following acknowledgement:
 * 
 *    This product includes software developed by Intel Corporation and its
 *    contributors.
 * 
 * 4. Neither the name of Intel Corporation or its contributors may be used to
 *    endorse or promote products derived from this software without specific
 *    prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 */

#include <stdlib.h>
#include <string.h>
#include <unistd.h>

/*++

Module Name:

    gethostname.c
    
Abstract:

    Map FreeBSD gethostname call to EFI Interface


Revision History

--*/

int
gethostname(
	char	*name,
	size_t		namelen
	)
/*++

Routine Description:

    Get the hostname for this system.

Arguments:
    
	name		- Pointer to storage for hostname.
	namelen		- Length of name

Returns:

	0 on success, -1 if not set

--*/
{
	char	*pHost;

	pHost = getenv ("HOSTNAME");

	if ( pHost == NULL ) {
		*name = 0;
	} else {
		strncpy (name, pHost, namelen);
		name[namelen-1] = 0;
	}

	return (0);
}