NetBSD/gnu/dist/cvs/lib/gethostname.c

46 lines
1.1 KiB
C

/* hostname.c -- use uname() to get the name of the host
Copyright (C) 1992 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. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#if defined(STDC_HEADERS) || defined(USG)
#include <string.h>
#ifndef index
#define index strchr
#endif
#else
#include <strings.h>
#endif
#include <sys/utsname.h>
/* Put this host's name into NAME, using at most NAMELEN characters */
int
gethostname(name, namelen)
char *name;
int namelen;
{
struct utsname ugnm;
if (uname(&ugnm) < 0)
return (-1);
(void) strncpy(name, ugnm.nodename, namelen-1);
name[namelen-1] = '\0';
return (0);
}