From 88f3d19479470db5d8a7d83c2b5a84fd10a6ddaa Mon Sep 17 00:00:00 2001
From: Jakub Jelen <jjelen@redhat.com>
Date: Tue, 6 Oct 2020 15:28:01 +0200
Subject: [PATCH] opensc: Expose iso7816_build_pin_apdu function to support
 different pin APDUs

---
 src/libopensc/iso7816.c |  2 +-
 src/libopensc/opensc.h  | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/libopensc/iso7816.c b/src/libopensc/iso7816.c
index b1a0e88f..d41613b2 100644
--- a/src/libopensc/iso7816.c
+++ b/src/libopensc/iso7816.c
@@ -1017,7 +1017,7 @@ iso7816_decipher(struct sc_card *card,
 }
 
 
-static int
+int
 iso7816_build_pin_apdu(struct sc_card *card, struct sc_apdu *apdu,
 		struct sc_pin_cmd_data *data, u8 *buf, size_t buf_len)
 {
diff --git a/src/libopensc/opensc.h b/src/libopensc/opensc.h
index b519c5d5..8ebf9fbd 100644
--- a/src/libopensc/opensc.h
+++ b/src/libopensc/opensc.h
@@ -1664,6 +1664,19 @@ int iso7816_update_binary_sfid(sc_card_t *card, unsigned char sfid,
  * */
 int iso7816_logout(sc_card_t *card, unsigned char pin_reference);
 
+/*
+ * @brief Format PIN APDU for modifiction by card driver
+ *
+ * @param[in] card           card
+ * @param[in] apdu           apdu structure to update with PIN APDU
+ * @param[in] data           pin command data to set into the APDU
+ * @param[in] buf            buffer for APDU data field
+ * @param[in] buf_len        maximum buffer length
+ */
+int
+iso7816_build_pin_apdu(struct sc_card *card, struct sc_apdu *apdu,
+		struct sc_pin_cmd_data *data, u8 *buf, size_t buf_len);
+
 /**
  * Free a buffer returned by OpenSC.
  * Use this instead your C libraries free() to free memory allocated by OpenSC.