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2026-04-10 22:24:12 +02:00 · 1994-05-08 16:16:03 +00:00
parent a99f319d12
commit 31c8ce9ef8
1 changed files with 101 additions and 0 deletions
--- a/src/hostname.c
+++ b/src/hostname.c
@@ -0,0 +1,101 @@
+/* hostname - set or print the name of current host system
+   Copyright (C) 1994 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.  */
+
+/* Jim Meyering <meyering@comco.com> */
+
+#ifdef HAVE_CONFIG_H
+#if defined (CONFIG_BROKETS)
+/* We use <config.h> instead of "config.h" so that a compilation
+   using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
+   (which it would do because it found this file in $srcdir).  */
+#include <config.h>
+#else
+#include "config.h"
+#endif
+#endif
+
+#include <stdio.h>
+
+#include "system.h"
+#include "long-options.h"
+
+void error ();
+char *xgethostname ();
+
+/* The name this program was run with. */
+char *program_name;
+
+static void
+usage (status)
+     int status;
+{
+  if (status != 0)
+    fprintf (stderr, "Try `%s --help' for more information.\n",
+	     program_name);
+  else
+    {
+      printf ("\
+Usage: %s [NAME]\n\
+  or:  %s OPTION\n\
+\n\
+  --help      display this help and exit\n\
+  --version   output version information and exit\n\
+"
+             , program_name, program_name);
+    }
+  exit (status);
+}
+
+void
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  char *hostname;
+
+  program_name = argv[0];
+
+  parse_long_options (argc, argv, "hostname", usage);
+
+#ifdef HAVE_SETHOSTNAME
+  if (argc == 2)
+    {
+      int err;
+
+      /* Set hostname to argv[1].  */
+      err = sethostname (argv[1], strlen (argv[1]));
+      if (err != 0)
+	error (1, errno, "%s", argv[1]);
+      exit (0);
+    }
+#endif
+
+  if (argc == 1)
+    {
+      hostname = xgethostname ();
+      if (hostname == NULL)
+	error (1, errno, "cannot determine hostname");
+      printf ("%s\n", hostname);
+    }
+  else
+    {
+      error (2, 0, "too many arguments");
+      usage (1);
+    }
+
+  exit (0);
+}