Fix nasa#127, Adds JSC 2.1 Static Analysis comments

fsw/src/ds_app.c

@@ -358,6 +358,7 @@ void DS_AppSendHkCmd(void)
         Status = CFE_TBL_GetInfo(&FilterTblInfo, FilterTblName);
         if (Status == CFE_SUCCESS)
         {
+            /* SAD: Using OS_MAX_PATH_LEN - 1 ensures room for null termination. Explicit null terminator added at OS_MAX_PATH_LEN - 1 for safety */
             strncpy(PayloadPtr->FilterTblFilename, FilterTblInfo.LastFileLoaded, OS_MAX_PATH_LEN - 1);
             PayloadPtr->FilterTblFilename[OS_MAX_PATH_LEN - 1] = '\0';
         }

fsw/src/ds_cmds.c

@@ -1096,6 +1096,7 @@ void DS_GetFileInfoCmd(const CFE_SB_Buffer_t *BufPtr)
             /*
             ** Set current open filename...
             */
+            /* SAD: Using strncpy since DS_AppData.FileStatus[i].FileName is null-terminated in ds/fsw/src/ds_file.c::DS_FileCreateName() */
             strncpy(FileInfoPtr->FileName, DS_AppData.FileStatus[i].FileName, sizeof(FileInfoPtr->FileName));
         }
     }

fsw/src/ds_file.c

@@ -881,6 +881,7 @@ void DS_FileCloseDest(int32 FileIndex)
             }
 
             /* Update the path name for reporting */
+            /* SAD: Using strncpy since PathName is null-terminated in ds/fsw/src/ds_file.c::DS_FileCloseDest() */
             strncpy(FileStatus->FileName, PathName, sizeof(FileStatus->FileName));
         }
     }
@@ -991,6 +992,7 @@ void DS_FileTransmit(DS_AppFileStatus_t *FileStatus)
         /*
         ** Set current open filename...
         */
+        /* SAD: Using strncpy since FileStatus->FileName is null-terminated in ds/fsw/src/ds_file.c::DS_FileCreateName() */
         strncpy(FileInfo->FileName, FileStatus->FileName, sizeof(FileInfo->FileName));
 
         /*

fsw/src/ds_table.c

@@ -421,6 +421,7 @@ CFE_Status_t DS_TableVerifyDestFile(const void *TableData)
         else
         {
             CountBad++;
+            /* SAD: Assignment of 0xFFFFFFFF to Result is safe; it represents -1 in int32, within valid range */
             Result = DS_TABLE_VERIFY_ERR;
         }
     }
@@ -543,6 +544,7 @@ CFE_Status_t DS_TableVerifyFilter(const void *TableData)
         else
         {
             CountBad++;
+            /* SAD: Assignment of 0xFFFFFFFF to Result is safe; it represents -1 in int32, within valid range */
             Result = DS_TABLE_VERIFY_ERR;
         }
     }