3199     u8 *page1 = pPage1->aData;  in lockBtree()  local
3204     if( memcmp(page1, zMagicHeader, 16)!=0 ){  in lockBtree()
3209     if( page1[18]>1 ){  in lockBtree()
3212     if( page1[19]>1 ){  in lockBtree()
3216     if( page1[18]>2 ){  in lockBtree()
3219     if( page1[19]>2 ){  in lockBtree()
3231     if( page1[19]==2 && (pBt->btsFlags & BTS_NO_WAL)==0 ){  in lockBtree()
3255     if( memcmp(&page1[21], "\100\040\040",3)!=0 ){  in lockBtree()
3261     pageSize = (page1[16]<<8) | (page1[17]<<16);  in lockBtree()
3279     usableSize = pageSize - page1[20];  in lockBtree()
3312     pBt->autoVacuum = (get4byte(&page1[36 + 4*4])?1:0);  in lockBtree()
3313     pBt->incrVacuum = (get4byte(&page1[36 + 7*4])?1:0);  in lockBtree()