2 files changed, 75 insertions, 0 deletions
diff --git a/vcard_emul_type.c b/vcard_emul_type.c
new file mode 100644
index 0000000..95d3a9e
--- /dev/null
+++ b/vcard_emul_type.c
@@ -0,0 +1,44 @@
+/*
+ *  This file contains utility functions which abstract the different card types. 
+ *  The goal is that new card types can easily be added by simply changing this file and 
+ *  vcard_emul_type.h. It is currently not a requirement to dynamically add new card types.
+ */
+
+#include "vcardt.h"
+#include "vcard_emul_type.h"
+
+VCardStatus vcard_init(VCard *vcard, VCardEmulType type, const char * flags, 
+                       unsigned char *const *cert, int cert_len[], 
+                       VCardKey *key[], int cert_count)
+{
+    switch (type) {
+    case VCARD_EMUL_NONE:
+        break;
+    case VCARD_EMUL_CAC:
+        return cac_card_init(vcard, flags, cert, cert_len, key,  cert_count);
+    /* add new ones here */
+    default:
+        break;
+    }
+    return VCARD_FAIL;
+}
+
+VCardEmulType vcard_emul_type_select(VReader *vreader)
+{
+#ifdef notdef
+    /* since there is only one emulator no need to call this function */
+    if (cac_is_cac_card(vreader) == VCARD_DONE) {
+        return VCARD_EMUL_CAC;
+    }
+#endif
+    /* return the default */
+    return VCARD_EMUL_CAC;
+}
+
+VCardEmulType vcard_emul_type_from_string(char *type_string)
+{
+     if (strcasecmp(type_string,"CAC") == 0) {
+        return VCARD_EMUL_CAC;
+     }
+     return VCARD_EMUL_NONE;
+}
diff --git a/vcard_emul_type.h b/vcard_emul_type.h
new file mode 100644
index 0000000..a17dbbd
--- /dev/null
+++ b/vcard_emul_type.h
@@ -0,0 +1,31 @@
+/*
+ *  This header file abstracts the different card types. The goal is new card types can easily
+ *  be added by simply changing this file and vcard_emul_type.c. It is currently not a requirement
+ *  to dynamically add new card types.
+ */
+
+#ifndef VCARD_EMUL_TYPE_H
+#define VCARD_EMUL_TYPE_H 1
+#include "vcardt.h"
+#include "vreadert.h"
+
+/*
+ * types
+ */
+typedef enum {
+     VCARD_EMUL_NONE =0,
+     VCARD_EMUL_CAC
+} VCardEmulType;
+
+/* functions used by the rest of the emulator */
+VCardStatus vcard_init(VCard *vcard, VCardEmulType type, const char * flags, 
+                       unsigned char * const *cert, int cert_len[], VCardKey *key[], 
+                       int cert_count);
+VCardEmulType vcard_emul_type_select(VReader *vreader);
+VCardEmulType vcard_emul_type_from_string(char *type_string);
+
+/* forward declarations of emul type functions used by vcard_emul_type.c */
+VCardStatus cac_card_init(VCard *vcard, const char * flags, unsigned char *const *cert, 
+                          int cert_len[], VCardKey *key[], int cert_count);
+VCardStatus cac_is_cac_card(VReader *reader);
+#endif