* src/hostid.c (main): Don't print fewer than 8 digits, or spurious leading "f".

1 files changed, 8 insertions, 2 deletions

diff --git a/src/hostid.c b/src/hostid.c
index 477d16e4a..090b8a04c 100644
--- a/src/hostid.c
+++ b/src/hostid.c
@@ -62,7 +62,7 @@ Print the numeric identifier (in hexadecimal) for the current host.\n\
 int
 main (int argc, char **argv)
 {
-  long int id;
+  unsigned int id;
 
   initialize_main (&argc, &argv);
   program_name = argv[0];
@@ -84,7 +84,13 @@ main (int argc, char **argv)
     }
 
   id = gethostid ();
-  printf ("%lx\n", id);
+
+  /* POSIX says gethostid returns a "32-bit identifier" but is silent
+     whether it's sign-extended.  Turn off any sign-extension.  This
+     is a no-op unless unsigned int is wider than 32 bits.  */
+  id &= 0xffffffff;
+
+  printf ("%08x\n", id);
 
   exit (EXIT_SUCCESS);
 }