--- hexed.c-original	2015-05-09 00:24:13.791707625 +0200
+++ hexed.c	2015-05-09 00:54:07.538368884 +0200
@@ -29,26 +29,29 @@
         int addx;
         int addCarray;
         int hexd;
-        unsigned char *str;
+        union {
+            char *str;
+            unsigned char *ustr;
+        };
 } hexed_t;
 
 void hexed_hex_encode(hexed_t *hexed) {
         int index = 0;
 
-        for( index = 0; hexed->str[index] != 0; index++ ) {
+        for( index = 0; hexed->ustr[index] != 0; index++ ) {
                 if ( hexed->addx )
-                        printf("\\x%x", hexed->str[index]);
+                        printf("\\x%x", hexed->ustr[index]);
                 else if ( hexed->addCarray )
-                        printf("0x%x,", hexed->str[index]);
+                        printf("0x%x,", hexed->ustr[index]);
                 else
-                        printf("%x", hexed->str[index]);
+                        printf("%x", hexed->ustr[index]);
         }
 
         putchar(0x0a);
 }
 
 void hexed_hex_decode(hexed_t *hexed) {
-        int index = 0;
+        size_t index = 0;
         short byte = 0x00;
         size_t len = strlen(hexed->str);