glibc/sysdeps/generic/getdomain.c

63 lines
1.6 KiB
C

/* Copyright (C) 1994, 1995, 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Put the name of the current YP domain in no more than LEN bytes of NAME.
The result is null-terminated if LEN is large enough for the full
name and the terminator. */
#include <errno.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/utsname.h>
#include <string.h>
#if _UTSNAME_DOMAIN_LENGTH
/* The `uname' information includes the domain name. */
int
getdomainname (name, len)
char *name;
size_t len;
{
struct utsname u;
size_t u_len;
if (uname (&u) < 0)
return -1;
u_len = strlen (u.domainname);
memcpy (name, u.domainname, MIN (u_len + 1, len));
return 0;
}
#else
int
getdomainname (name, len)
char *name;
size_t len;
{
__set_errno (ENOSYS);
return -1;
}
stub_warning (getdomainname)
#include <stub-tag.h>
#endif