From 743969ab062e00ca7cceb204ae3311cb219be64c Mon Sep 17 00:00:00 2001
From: estkme <145633413+estkme@users.noreply.github.com>
Date: Sun, 3 Dec 2023 00:50:57 +0800
Subject: [PATCH] Add debug env

---
 euicc/interface.c         | 38 ++++++++++++++++++++++----------------
 euicc/interface.private.h |  2 --
 2 files changed, 22 insertions(+), 18 deletions(-)

diff --git a/euicc/interface.c b/euicc/interface.c
index 6761d7d..09c4143 100644
--- a/euicc/interface.c
+++ b/euicc/interface.c
@@ -38,12 +38,31 @@ int euicc_apdu_le(struct euicc_ctx *ctx, struct apdu_request **apdu, uint8_t cla
     return le(*apdu, cla, ins, p1, p2, requestlen);
 }
 
+static void euicc_apdu_request_print(const struct apdu_request *req, uint32_t request_len)
+{
+    fprintf(stderr, "[DEBUG] [REQ] CLA: %02X, INS: %02X, P1: %02X, P2: %02X, Lc: %02X, Data: ", req->cla, req->ins, req->p1, req->p2, req->length);
+    for (int i = 0; i < (request_len - sizeof(struct apdu_request)); i++)
+        fprintf(stderr, "%02X ", req->data[i]);
+    fprintf(stderr, "\n");
+}
+
+static void euicc_apdu_response_print(const struct apdu_response *resp)
+{
+    fprintf(stderr, "[DEBUG] [RES] SW1: %02X, SW2: %02X, Data: ", resp->sw1, resp->sw2);
+    for (int i = 0; i < resp->length; i++)
+        fprintf(stderr, "%02X ", resp->data[i]);
+    fprintf(stderr, "\n");
+}
+
 int euicc_apdu_transmit(struct euicc_ctx *ctx, struct apdu_response *response, const struct apdu_request *request, uint32_t request_len)
 {
     struct euicc_apdu_interface *in = ctx->interface.apdu;
 
     memset(response, 0x00, sizeof(*response));
 
+    if (getenv("LIBEUICC_DEBUG_APDU"))
+        euicc_apdu_request_print(request, request_len);
+
     if (in->transmit(ctx, &response->data, &response->length, (uint8_t *)request, request_len) < 0)
         return -1;
 
@@ -54,6 +73,9 @@ int euicc_apdu_transmit(struct euicc_ctx *ctx, struct apdu_response *response, c
     response->sw2 = response->data[response->length - 1];
     response->length -= 2;
 
+    if (getenv("LIBEUICC_DEBUG_APDU"))
+        euicc_apdu_response_print(response);
+
     return 0;
 }
 
@@ -63,19 +85,3 @@ void euicc_apdu_response_free(struct apdu_response *resp)
     resp->data = NULL;
     resp->length = 0;
 }
-
-void euicc_apdu_request_print(struct apdu_request *req)
-{
-    fprintf(stderr, "CLA: %02X, INS: %02X, P1: %02X, P2: %02X, Lc: %02X, Data: ", req->cla, req->ins, req->p1, req->p2, req->length);
-    for (int i = 0; i < req->length; i++)
-        fprintf(stderr, "%02X ", req->data[i]);
-    fprintf(stderr, "\n");
-}
-
-void euicc_apdu_response_print(struct apdu_response *resp)
-{
-    fprintf(stderr, "SW1: %02X, SW2: %02X, Data: ", resp->sw1, resp->sw2);
-    for (int i = 0; i < resp->length; i++)
-        fprintf(stderr, "%02X ", resp->data[i]);
-    fprintf(stderr, "\n");
-}
diff --git a/euicc/interface.private.h b/euicc/interface.private.h
index 48be04a..5679cf4 100644
--- a/euicc/interface.private.h
+++ b/euicc/interface.private.h
@@ -32,5 +32,3 @@ int euicc_apdu_lc(struct euicc_ctx *ctx, struct apdu_request **apdu, uint8_t cla
 int euicc_apdu_le(struct euicc_ctx *ctx, struct apdu_request **apdu, uint8_t cla, uint8_t ins, uint8_t p1, uint8_t p2, uint8_t requestlen);
 int euicc_apdu_transmit(struct euicc_ctx *ctx, struct apdu_response *response, const struct apdu_request *req, uint32_t req_len);
 void euicc_apdu_response_free(struct apdu_response *resp);
-void euicc_apdu_request_print(struct apdu_request *req);
-void euicc_apdu_response_print(struct apdu_response *resp);