audk/StdLib/BsdSocketLib/gethostname.c

93 lines
2.5 KiB
C

/*
* Copyright (c) 1999, 2000
* Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 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
* DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#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);
}