Fix kdb5_util ark with no -e option

Avoid passing NULL to krb5_string_to_keysalt() in add_random_key().
When add_random_key() was first written, krb5_string_to_keysalts() did
nothing on a null string input.  After commit
3576bd662be9b7cc2cca97065fe467e745542b69 it calls strdup(NULL) and
crashes.

diff --git a/src/kadmin/dbutil/kdb5_util.c b/src/kadmin/dbutil/kdb5_util.c
index 88218dba740abd188cd7ef63d2f48a1e173cc14f..96b4a2571df5d108ede633e69b89ae54159225c9 100644 (file)
--- a/src/kadmin/dbutil/kdb5_util.c
+++ b/src/kadmin/dbutil/kdb5_util.c
@@ -522,7 +522,7 @@ add_random_key(int argc, char **argv)
 
     int free_keysalts;
     char *me = progname;
-    char *ks_str = NULL;
+    char *ks_str = "";
     char *pr_str;
     krb5_keyblock *tmp_mkey;