refactor transfer data so it can send 0 bytes

2014-06-25 15:17:27 +02:00
parent c4d8492682
commit 00343b9b6c
1 changed files with 2 additions and 2 deletions
@@ -213,7 +213,7 @@ ykpiv_rc ykpiv_transfer_data(ykpiv_state *state, const unsigned char *templ,
  ykpiv_rc res;
  *out_len = 0;

-  while(in_ptr < in_data + in_len) {
+  do {
    size_t this_size = 0xff;
    unsigned long recv_len = 0xff;
    unsigned char data[0xff];
@@ -247,7 +247,7 @@ ykpiv_rc ykpiv_transfer_data(ykpiv_state *state, const unsigned char *templ,
    out_data += recv_len - 2;
    *out_len += recv_len - 2;
    in_ptr += this_size;
-  }
+  } while(in_ptr < in_data + in_len);
  while(*sw >> 8 == 0x61) {
    APDU apdu;
    unsigned long recv_len = 0xff;