sysdeps/mach/hurd/sethostname.c

   1 /* Copyright (C) 1991-2024 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <unistd.h>
  19 #include "hurdhost.h"
  20
  21 /* Set the name of the current host to NAME, which is LEN bytes long.
  22    This call is restricted to the super-user.  */
  23 /* XXX should be __sethostname ? */
  24 int
  25 sethostname (const char *name, size_t len)
  26 {
  27   /* The host name is just the contents of the file /etc/hostname.  */
  28   ssize_t n = _hurd_set_host_config ("/etc/hostname", name, len);
  29   return n < 0 ? -1 : 0;
  30 }