From 5e465ac8bf961dcce7329237fb15c14abe9fa300 Mon Sep 17 00:00:00 2001
From: "Julian M. Kunkel" <juliankunkel@googlemail.com>
Date: Tue, 21 Jul 2020 13:54:50 +0100
Subject: [PATCH] Option: merge function to supported AIORI module reuse.

---
 src/option.c | 17 +++++++++++++++++
 src/option.h |  1 +
 2 files changed, 18 insertions(+)

diff --git a/src/option.c b/src/option.c
index 618360f..c44dc9b 100644
--- a/src/option.c
+++ b/src/option.c
@@ -7,6 +7,23 @@
 
 #include <option.h>
 
+
+/* merge two option lists and return the total size */
+option_help * option_merge(option_help * a, option_help * b){
+  int count_a = 0;
+  for(option_help * i = a; i->type != 0; i++){
+    count_a++;
+  }
+  int count = count_a + 1; // LAST_OPTION is one
+  for(option_help * i = b; i->type != 0; i++){
+    count++;
+  }
+  option_help * h = malloc(sizeof(option_help) * count);
+  memcpy(h, a, sizeof(option_help) * count_a);
+  memcpy(h + count_a, b, sizeof(option_help) * (count - count_a));
+  return h;
+}
+
 /*
 * Takes a string of the form 64, 8m, 128k, 4g, etc. and converts to bytes.
 */
diff --git a/src/option.h b/src/option.h
index 5ca305f..0afa519 100644
--- a/src/option.h
+++ b/src/option.h
@@ -43,6 +43,7 @@ void option_print_current(option_help * args);
 //@return the number of parsed arguments
 int option_parse(int argc, char ** argv, options_all_t * args);
 int option_parse_str(char*val, options_all_t * opt_all);
+option_help * option_merge(option_help * a, option_help * b);
 
 /* Parse a single line */
 int option_parse_key_value(char * key, char * value, options_all_t * opt_all);