prevent duplicate values to -c

zhanshen360 · Jul 25, 2016 · a82a811 · a82a811
1 parent 0442966
commit a82a811
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/brainflayer.c b/brainflayer.c
@@ -531,6 +531,9 @@ int main(int argc, char **argv) {
       default:
         bail(1, "Unknown hash160 type '%c'.\n", copt[i]);
     }
+    if (strchr(copt + i + 1, copt[i])) {
+      bail(1, "Duplicate hash160 type '%c'.\n", copt[i]);
+    }
     pubhashfn[i].id = copt[i];
     ++i;
   }