Fix bug (wrong value computed) when reading file from stdin, implement

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

diff --git a/coreutils/hostid.c b/coreutils/hostid.c
index 35a5859c4e3b59130159638cffe87b71b369a4a7..917dc223e3222db342d73243092d39c2f362627c 100644 (file)
--- a/coreutils/hostid.c
+++ b/coreutils/hostid.c
@@ -20,11 +20,19 @@
  *
  */
 
+/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
+
+#include <stdlib.h>
+#include <unistd.h>
 #include "busybox.h"
-#include <stdio.h>
 
 extern int hostid_main(int argc, char **argv)
 {
-       printf("%lx\n", gethostid());
-       return EXIT_SUCCESS;
+       if (argc > 1) {
+               bb_show_usage();
+       }
+
+       bb_printf("%lx\n", gethostid());
+
+       bb_fflush_stdout_and_exit(EXIT_SUCCESS);
 }