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/* gethostname emulation for SysV and POSIX.1.
Copyright (C) 1992, 2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* David MacKenzie <djm@gnu.ai.mit.edu> */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_UNAME
# include <sys/utsname.h>
#endif
/* Put up to LEN chars of the host name into NAME.
Null terminate it if the name is shorter than LEN.
Return 0 if ok, -1 if error. */
#include <stddef.h>
int
gethostname (char *name, size_t len)
{
#ifdef HAVE_UNAME
struct utsname uts;
if (uname (&uts) == -1)
return -1;
if (len > sizeof (uts.nodename))
{
/* More space than we need is available. */
name[sizeof (uts.nodename)] = '\0';
len = sizeof (uts.nodename);
}
strncpy (name, uts.nodename, len);
#else
strcpy (name, ""); /* Hardcode your system name if you want. */
#endif
return 0;
}
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