+/* xgethostname.c -- return current hostname with unlimited length
+ 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.
+
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Written by Jim Meyering, meyering@comco.com */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
#include <sys/types.h>
int gethostname ();
char *xmalloc ();
char *xrealloc ();
+#ifndef INITIAL_HOSTNAME_LENGTH
#define INITIAL_HOSTNAME_LENGTH 33
+#endif
char *
xgethostname ()
int err;
size = INITIAL_HOSTNAME_LENGTH;
+ hostname = xmalloc (size);
while (1)
{
- hostname = xmalloc (size);
hostname[size - 1] = '\0';
err = gethostname (hostname, size);
- if (err || hostname[size - 1] == '\0')
+ if (err == 0 && hostname[size - 1] == '\0')
break;
size *= 2;
hostname = xrealloc (hostname, size);