usr/src/lib/gss_mechs/mech_krb5/mech/util_localhost.c

   1 /*
   2  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 #pragma ident   "%Z%%M% %I%     %E% SMI"
   7
   8 /*
   9  * Copyright 1993 by OpenVision Technologies, Inc.
  10  *
  11  * Permission to use, copy, modify, distribute, and sell this software
  12  * and its documentation for any purpose is hereby granted without fee,
  13  * provided that the above copyright notice appears in all copies and
  14  * that both that copyright notice and this permission notice appear in
  15  * supporting documentation, and that the name of OpenVision not be used
  16  * in advertising or publicity pertaining to distribution of the software
  17  * without specific, written prior permission. OpenVision makes no
  18  * representations about the suitability of this software for any
  19  * purpose.  It is provided "as is" without express or implied warranty.
  20  *
  21  * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  22  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  23  * EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  24  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
  25  * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
  26  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  27  * PERFORMANCE OF THIS SOFTWARE.
  28  */
  29
  30 /*
  31  * $Id: util_localhost.c 7797 1996-04-12 00:40:24Z marc $
  32  */
  33
  34 /* This file could be OS specific */
  35
  36 #include <sys/param.h>
  37
  38 #include "gssapiP_generic.h"
  39 #include <strings.h> /* SUNW15resync */
  40 #include <unistd.h>  /* SUNW15resync */
  41
  42 #ifndef MAXHOSTNAMELEN
  43 #define MAXHOSTNAMELEN 64
  44 #endif
  45
  46 char *g_local_host_name()
  47 {
  48      char buf[MAXHOSTNAMELEN+1], *ptr;
  49
  50      if (gethostname(buf, sizeof(buf)) < 0)
  51           return 0;
  52
  53      buf[sizeof(buf)-1] = '\0';
  54
  55      if (! (ptr = xmalloc(strlen(buf) + 1)))
  56           return 0;
  57
  58      return strcpy(ptr, buf);
  59 }