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      1 /*
      2  * Copyright (c) 1999, 2000
      3  * Intel Corporation.
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without modification,
      7  * are permitted provided that the following conditions are met:
      8  *
      9  * 1. Redistributions of source code must retain the above copyright notice,
     10  *    this list of conditions and the following disclaimer.
     11  *
     12  * 2. Redistributions in binary form must reproduce the above copyright notice,
     13  *    this list of conditions and the following disclaimer in the documentation
     14  *    and/or other materials provided with the distribution.
     15  *
     16  * 3. All advertising materials mentioning features or use of this software must
     17  *    display the following acknowledgement:
     18  *
     19  *    This product includes software developed by Intel Corporation and its
     20  *    contributors.
     21  *
     22  * 4. Neither the name of Intel Corporation or its contributors may be used to
     23  *    endorse or promote products derived from this software without specific
     24  *    prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     28  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     29  * DISCLAIMED.  IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE LIABLE FOR
     30  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     31  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     32  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     33  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     35  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     36  *
     37  */
     38 
     39 #include <errno.h>
     40 #include <stdlib.h>
     41 #include <string.h>
     42 #include <Uefi.h>
     43 #include <unistd.h>
     44 #include <wchar.h>
     45 
     46 /*++
     47 
     48 Module Name:
     49 
     50     sethostname.c
     51 
     52 Abstract:
     53 
     54     Map FreeBSD sethostname call to EFI Interface
     55 
     56 
     57 Revision History
     58 
     59 --*/
     60 
     61 int
     62 sethostname(
     63   const char * name,
     64   size_t namelen
     65   )
     66 /*++
     67 
     68 Routine Description:
     69 
     70     Set the hostname for this system.
     71 
     72 Arguments:
     73 
     74   name    - Pointer to hostname.
     75   namelen   - Length of name
     76 
     77 Returns:
     78 
     79   0 on success, -1 if not set
     80 
     81 --*/
     82 {
     83   int SetStatus;
     84   char * pName;
     85 
     86   //
     87   //  Allocate a new buffer for name since the input value
     88   //  does not need to be zero terminated
     89   //
     90   pName = malloc ( namelen + 1 );
     91   if ( NULL == pName ) {
     92     errno = ENOMEM;
     93     SetStatus = -1;
     94   }
     95   else {
     96     //
     97     //  Create a zero terminated string for name
     98     //
     99     memcpy ( pName, name, namelen );
    100     pName[ namelen ] = 0;
    101 
    102     //
    103     //  Set the environment variable
    104     //
    105     SetStatus = setenv ("HOSTNAME", pName, TRUE);
    106 
    107     //
    108     //  Free the temporary buffer
    109     //
    110     free ( pName );
    111   }
    112 
    113   //
    114   //  Return the results
    115   //
    116   return SetStatus;
    117 }
    118