sysdeps/generic/getdomain.c

   1 /* Copyright (C) 1994, 1995 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 Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 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 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <errno.h>
  20 #include <unistd.h>
  21 #include <sys/utsname.h>
  22 #include <string.h>
  23
  24 #if _UTSNAME_DOMAIN_LENGTH
  25 /* The `uname' information includes the domain name.  */
  26
  27 /* Put the name of the current YP domain in no more than LEN bytes of NAME.
  28    The result is null-terminated if LEN is large enough for the full
  29    name and the terminator.  */
  30 int
  31 getdomainname (char *name, size_t len)
  32 {
  33   struct utsname u;
  34
  35   if (uname (&u) < 0)
  36     return -1;
  37
  38   strncpy (name, u.domainname, len);
  39   return 0;
  40 }
  41
  42 #else
  43 #include <sysdeps/stub/getdomain.c>
  44 #endif