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-rw-r--r--xtables.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/xtables.c b/xtables.c
index 566b5c3b..b6309010 100644
--- a/xtables.c
+++ b/xtables.c
@@ -95,6 +95,13 @@ struct option *xtables_merge_options(struct option *orig_opts,
for (num_old = 0; oldopts[num_old].name; num_old++) ;
for (num_new = 0; newopts[num_new].name; num_new++) ;
+ /*
+ * Since @oldopts also has @orig_opts already (and does so at the
+ * start), skip these entries.
+ */
+ oldopts += num_oold;
+ num_old -= num_oold;
+
merge = malloc(sizeof(*mp) * (num_oold + num_old + num_new + 1));
if (merge == NULL)
return NULL;
@@ -103,10 +110,6 @@ struct option *xtables_merge_options(struct option *orig_opts,
memcpy(merge, orig_opts, sizeof(*mp) * num_oold);
mp = merge + num_oold;
- /* Since @opts also has @orig_opts already, skip the entries */
- oldopts += num_oold;
- num_old -= num_oold;
-
/* Second, the new options */
xt_params->option_offset += 256;
*option_offset = xt_params->option_offset;