sparc-patch1

通用SCSI设备备份/读写程序

diff -ux Makefile mtx-1.2.9/mtxl.c mtx-1.2.9.works/mtxl.c
--- mtx-1.2.9/mtxl.c    Mon Jul 31 12:33:53 2000
+++ mtx-1.2.9.works/mtxl.c      Sat Nov 25 16:47:45 2000
@@ -431,8 +431,10 @@
 ElementStatus_T *ReadElementStatus(DEVICE_TYPE MediumChangerFD, RequestSense_T *RequestSense, Inquiry_T *inquiry_info, SCSI_Flags_T *flags) {
   ElementStatusDataHeader_T *ElementStatusDataHeader;
   ElementStatusPage_T *ElementStatusPage;
+  ElementStatusPage_T ESBuf;
   ElementStatus_T *ElementStatus;
   TransportElementDescriptor_T *TransportElementDescriptor;
+  TransportElementDescriptor_T TEBuf;
 
   unsigned char *DataBuffer; /* size of data... */
   unsigned char *DataPointer; /* point into the databuffer; */
@@ -648,7 +651,8 @@
       got_element_num++;
 #endif
 
-      ElementStatusPage = (ElementStatusPage_T *) DataPointer;
+      memcpy(&ESBuf, DataPointer, sizeof(ElementStatusPage_T));
+      ElementStatusPage = &ESBuf;
       DataPointer += sizeof(ElementStatusPage_T);
       TransportElementDescriptorLength =
        BigEndian16(ElementStatusPage->ElementDescriptorLength);
@@ -671,8 +675,8 @@
        BigEndian24(ElementStatusPage->ByteCountOfDescriptorDataAvailable);
       while (BytesAvailable > 0)
        {
-         TransportElementDescriptor =
-           (TransportElementDescriptor_T *) DataPointer;
+         memcpy(&TEBuf, DataPointer, TransportElementDescriptorLength);
+         TransportElementDescriptor = &TEBuf;
          DataPointer += TransportElementDescriptorLength;
          BytesAvailable -= TransportElementDescriptorLength;
          ElementCount--;