make_single_applets.sh: fix for BSS trick

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

diff --git a/coreutils/hostid.c b/coreutils/hostid.c
index cda96726ab0775239592eb27b187c3e227c41e94..0388094522174691de16d025f845a709d1fd1f2a 100644 (file)
--- a/coreutils/hostid.c
+++ b/coreutils/hostid.c
@@ -4,22 +4,39 @@
  *
  * Copyright (C) 2000  Edward Betts <edward@debian.org>.
  *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+//config:config HOSTID
+//config:      bool "hostid (286 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
 
 /* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
 
-#include <stdlib.h>
-#include <unistd.h>
-#include "busybox.h"
+//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 ATTRIBUTE_UNUSED **argv)
+int hostid_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int hostid_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 {
-       if (argc > 1) {
+       if (argv[1]) {
                bb_show_usage();
        }
 
-       bb_printf("%lx\n", gethostid());
+       /* POSIX says gethostid returns a "32-bit identifier" */
+       printf("%08x\n", (unsigned)(uint32_t)gethostid());
 
-       bb_fflush_stdout_and_exit(EXIT_SUCCESS);
+       return fflush_all();
 }