aesxx/utils: add some basic usage tests

1 files changed, 7 insertions, 1 deletions

diff --git a/aesxx/utils/helpers/cmd_parser_file.hpp b/aesxx/utils/helpers/cmd_parser_file.hpp
index 81562f5..2e710b2 100644
--- a/aesxx/utils/helpers/cmd_parser_file.hpp
+++ b/aesxx/utils/helpers/cmd_parser_file.hpp
@@ -64,8 +64,10 @@ public:
 
     void parse(int argc, char** argv) override {
         SettingsParser::parse(argc, argv);
+        if (exit_with_usage())
+            return;
 
-        if (aes::mode_requires_init_vector(mode) && iv.empty()) {
+        if (aes::mode_requires_init_vector(get_mode()) && iv.empty()) {
             throw boost::program_options::error{
                 "an initialization vector is required for the selected mode of operation"
             };
@@ -92,6 +94,10 @@ public:
         return key;
     }
 
+    bool has_iv() const {
+        return !iv.empty();
+    }
+
     std::string get_iv() const {
         return iv;
     }