Use of BSA_DataBlock32 in BSAGetData()
For BSAGetData(), all parameters in the BSA_DataBlock32 structure must be set by the XBSA application and adhere to the NetBackup XBSA interface preferences or the function fails with a BSA_RC_INVALID_DATABLOCK error. The NetBackup XBSA interface changes the numBytes parameter setting to the actual number of bytes copied into the data segment. NetBackup is not allowed to change any of the other parameters.