* fcc_maybe.c

	Only store the os_context time offset if it is valid.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@7462 dc483132-0cff-0310-8789-dd5450dbe970

diff --git a/src/lib/krb5/ccache/file/fcc_maybe.c b/src/lib/krb5/ccache/file/fcc_maybe.c
index 5ce020d17d18f9b4d11207a474941b32ebc45692..257c06e8416dbc6f44a2eee6f10fc9937ace5e05 100644 (file)
--- a/src/lib/krb5/ccache/file/fcc_maybe.c
+++ b/src/lib/krb5/ccache/file/fcc_maybe.c
@@ -271,24 +271,29 @@ krb5_fcc_open_file (context, id, mode)
         if (data->version == KRB5_FCC_FVNO_4) {
             /* V4 of the credentials cache format allows for header tags */
 
-            fcc_flen = (2*sizeof(krb5_ui_2) + 2*sizeof(krb5_int32));
+            fcc_flen = 0;
+
+            if (os_ctx->os_flags & KRB5_OS_TOFFSET_VALID)
+                fcc_flen += (2*sizeof(krb5_ui_2) + 2*sizeof(krb5_int32));
 
             /* Write header length */
             retval = krb5_fcc_store_ui_2(context, id, (krb5_int32)fcc_flen);
             if (retval) goto done;
 
-            /* Write time offset tag */
-            fcc_tag = FCC_TAG_DELTATIME;
-            fcc_taglen = 2*sizeof(krb5_int32);
-
-            retval = krb5_fcc_store_ui_2(context, id, (krb5_int32)fcc_tag);
-            if (retval) goto done;
-            retval = krb5_fcc_store_ui_2(context, id, (krb5_int32)fcc_taglen);
-            if (retval) goto done;
-            retval = krb5_fcc_store_int32(context, id, os_ctx->time_offset);
-            if (retval) goto done;
-            retval = krb5_fcc_store_int32(context, id, os_ctx->usec_offset);
-            if (retval) goto done;
+            if (os_ctx->os_flags & KRB5_OS_TOFFSET_VALID) {
+                /* Write time offset tag */
+                fcc_tag = FCC_TAG_DELTATIME;
+                fcc_taglen = 2*sizeof(krb5_int32);
+                
+                retval = krb5_fcc_store_ui_2(context,id,(krb5_int32)fcc_tag);
+                if (retval) goto done;
+                retval = krb5_fcc_store_ui_2(context,id,(krb5_int32)fcc_taglen);
+                if (retval) goto done;
+                retval = krb5_fcc_store_int32(context,id,os_ctx->time_offset);
+                if (retval) goto done;
+                retval = krb5_fcc_store_int32(context,id,os_ctx->usec_offset);
+                if (retval) goto done;
+            }
         }
         goto done;
      }