1254     u8 aBuf[WAL_HDRSIZE];         /* Buffer to load WAL header into */  in walIndexRecover()  local
1267     rc = sqlite3OsRead(pWal->pWalFd, aBuf, WAL_HDRSIZE, 0);  in walIndexRecover()
1277     magic = sqlite3Get4byte(&aBuf[0]);  in walIndexRecover()
1278     szPage = sqlite3Get4byte(&aBuf[8]);  in walIndexRecover()
1288     pWal->nCkpt = sqlite3Get4byte(&aBuf[12]);  in walIndexRecover()
1289     memcpy(&pWal->hdr.aSalt, &aBuf[16], 8);  in walIndexRecover()
1293         aBuf, WAL_HDRSIZE-2*4, 0, pWal->hdr.aFrameCksum  in walIndexRecover()
1295     if( pWal->hdr.aFrameCksum[0]!=sqlite3Get4byte(&aBuf[24])  in walIndexRecover()
1296      || pWal->hdr.aFrameCksum[1]!=sqlite3Get4byte(&aBuf[28])  in walIndexRecover()
1303     version = sqlite3Get4byte(&aBuf[4]);  in walIndexRecover()
2516   u8 aBuf[WAL_HDRSIZE];           /* Buffer to load WAL header into */  in walBeginShmUnreliable()  local
2593   rc = sqlite3OsRead(pWal->pWalFd, aBuf, WAL_HDRSIZE, 0);  in walBeginShmUnreliable()
2597   if( memcmp(&pWal->hdr.aSalt, &aBuf[16], 8) ){  in walBeginShmUnreliable()
3558   u8 *aBuf;                       /* Buffer to load data from wal file into */  in walRewriteChecksums()  local
3563   aBuf = sqlite3_malloc(szPage + WAL_FRAME_HDRSIZE);  in walRewriteChecksums()
3564   if( aBuf==0 ) return SQLITE_NOMEM_BKPT;  in walRewriteChecksums()
3577   rc = sqlite3OsRead(pWal->pWalFd, aBuf, sizeof(u32)*2, iCksumOff);  in walRewriteChecksums()
3578   pWal->hdr.aFrameCksum[0] = sqlite3Get4byte(aBuf);  in walRewriteChecksums()
3579   pWal->hdr.aFrameCksum[1] = sqlite3Get4byte(&aBuf[sizeof(u32)]);  in walRewriteChecksums()
3585     rc = sqlite3OsRead(pWal->pWalFd, aBuf, szPage+WAL_FRAME_HDRSIZE, iOff);  in walRewriteChecksums()
3588       iPgno = sqlite3Get4byte(aBuf);  in walRewriteChecksums()
3589       nDbSize = sqlite3Get4byte(&aBuf[4]);  in walRewriteChecksums()
3591       walEncodeFrame(pWal, iPgno, nDbSize, &aBuf[WAL_FRAME_HDRSIZE], aFrame);  in walRewriteChecksums()
3596   sqlite3_free(aBuf);  in walRewriteChecksums()