diff options
Diffstat (limited to 'src/device/device_ledger.cpp')
| -rw-r--r-- | src/device/device_ledger.cpp | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/device/device_ledger.cpp b/src/device/device_ledger.cpp index c70422887..f716f8ded 100644 --- a/src/device/device_ledger.cpp +++ b/src/device/device_ledger.cpp @@ -187,14 +187,15 @@ namespace hw { void device_ledger::logCMD() { if (apdu_verbose) { char strbuffer[1024]; - sprintf(strbuffer, "%.02x %.02x %.02x %.02x %.02x ", + snprintf(strbuffer, sizeof(strbuffer), "%.02x %.02x %.02x %.02x %.02x ", this->buffer_send[0], this->buffer_send[1], this->buffer_send[2], this->buffer_send[3], this->buffer_send[4] ); - buffer_to_str(strbuffer+strlen(strbuffer), sizeof(strbuffer), (char*)(this->buffer_send+5), this->length_send-5); + const size_t len = strlen(strbuffer); + buffer_to_str(strbuffer+len, sizeof(strbuffer)-len, (char*)(this->buffer_send+5), this->length_send-5); MDEBUG( "CMD :" << strbuffer); } } @@ -202,11 +203,12 @@ namespace hw { void device_ledger::logRESP() { if (apdu_verbose) { char strbuffer[1024]; - sprintf(strbuffer, "%.02x%.02x ", + snprintf(strbuffer, sizeof(strbuffer), "%.02x%.02x ", this->buffer_recv[this->length_recv-2], this->buffer_recv[this->length_recv-1] ); - buffer_to_str(strbuffer+strlen(strbuffer), sizeof(strbuffer), (char*)(this->buffer_recv), this->length_recv-2); + const size_t len = strlen(strbuffer); + buffer_to_str(strbuffer+len, sizeof(strbuffer)-len, (char*)(this->buffer_recv), this->length_recv-2); MDEBUG( "RESP :" << strbuffer); } @@ -293,7 +295,7 @@ namespace hw { unsigned int device_ledger::exchange(unsigned int ok, unsigned int mask) { LONG rv; - int sw; + unsigned int sw; ASSERT_T0(this->length_send <= BUFFER_SEND_SIZE); logCMD(); @@ -302,6 +304,7 @@ namespace hw { SCARD_PCI_T0, this->buffer_send, this->length_send, NULL, this->buffer_recv, &this->length_recv); ASSERT_RV(rv); + ASSERT_T0(this->length_recv >= 2); ASSERT_T0(this->length_recv <= BUFFER_RECV_SIZE); logRESP(); |