1  /* Copyright (C) 2018-2023 Free Software Foundation, Inc.
       2     Contributed by Jakub Jelinek <jakub@redhat.com>.
       3  
       4     This file is part of the GNU Offloading and Multi Processing Library
       5     (libgomp).
       6  
       7     Libgomp is free software; you can redistribute it and/or modify it
       8     under the terms of the GNU General Public License as published by
       9     the Free Software Foundation; either version 3, or (at your option)
      10     any later version.
      11  
      12     Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
      13     WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
      14     FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
      15     more details.
      16  
      17     Under Section 7 of GPL version 3, you are granted additional
      18     permissions described in the GCC Runtime Library Exception, version
      19     3.1, as published by the Free Software Foundation.
      20  
      21     You should have received a copy of the GNU General Public License and
      22     a copy of the GCC Runtime Library Exception along with this program;
      23     see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      24     <http://www.gnu.org/licenses/>.  */
      25  
      26  #include "libgomp.h"
      27  #include <string.h>
      28  #include <stdio.h>
      29  #include <stdlib.h>
      30  #ifdef HAVE_UNISTD_H
      31  #include <unistd.h>
      32  #endif
      33  #ifdef HAVE_INTTYPES_H
      34  # include <inttypes.h>  /* For PRIx64.  */
      35  #endif
      36  #define WIN32_LEAN_AND_MEAN
      37  #include <windows.h>
      38  #include <errno.h>
      39  
      40  static int
      41  gomp_gethostname (char *name, size_t len)
      42  {
      43    /* On Win9x GetComputerName fails if the input size is less
      44       than MAX_COMPUTERNAME_LENGTH + 1.  */
      45    char buffer[MAX_COMPUTERNAME_LENGTH + 1];
      46    DWORD size = sizeof (buffer);
      47    int ret = 0;
      48  
      49    if (!GetComputerName (buffer, &size))
      50      return -1;
      51  
      52    if ((size = strlen (buffer) + 1) > len)
      53      {
      54        errno = EINVAL;
      55        /* Truncate as per POSIX spec.  We do not NUL-terminate. */
      56        size = len;
      57        ret = -1;
      58      }
      59    memcpy (name, buffer, (size_t) size);
      60  
      61    return ret;
      62  }
      63  
      64  #undef gethostname
      65  #define gethostname gomp_gethostname
      66  #define  HAVE_GETHOSTNAME 1
      67  
      68  #include "../../affinity-fmt.c"