gzip: speed up send_bits()

[oweals/busybox.git] / coreutils / hostid.c

diff --git a/coreutils/hostid.c b/coreutils/hostid.c
index 68a2cc65900e1823251b303e2c3aa93c34f36ffb..d21e6d6aca70e88c6de3fd3303bb456411b5f052 100644 (file)
--- a/coreutils/hostid.c
+++ b/coreutils/hostid.c
@@ -4,29 +4,39 @@
  *
  * Copyright (C) 2000  Edward Betts <edward@debian.org>.
  *
- * 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+//config:config HOSTID
+//config:      bool "hostid (247 bytes)"
+//config:      default y
+//config:      help
+//config:      hostid prints the numeric identifier (in hexadecimal) for
+//config:      the current host.
+
+//applet:IF_HOSTID(APPLET_NOFORK(hostid, hostid, BB_DIR_USR_BIN, BB_SUID_DROP, hostid))
+
+//kbuild:lib-$(CONFIG_HOSTID) += hostid.o
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include "busybox.h"
+/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
 
-extern int hostid_main(int argc, char **argv)
+//usage:#define hostid_trivial_usage
+//usage:       ""
+//usage:#define hostid_full_usage "\n\n"
+//usage:       "Print out a unique 32-bit identifier for the machine"
+
+#include "libbb.h"
+
+/* This is a NOFORK applet. Be very careful! */
+
+int hostid_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int hostid_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 {
-       printf("%lx\n", gethostid());
-       return EXIT_SUCCESS;
+       if (argv[1]) {
+               bb_show_usage();
+       }
+
+       /* POSIX says gethostid returns a "32-bit identifier" */
+       printf("%08x\n", (unsigned)(uint32_t)gethostid());
+
+       return fflush_all();
 }