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Overview
| Comment: | Pad the 26 byte Zonefile header to 32 bytes so that the ZonefileIndex object is 8-byte aligned. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | zonefile |
| Files: | files | file ages | folders |
| SHA3-256: | fdb6c0c5dc5a67ca16dfafc6e677f739 |
| User & Date: | dan 2018-02-13 17:33:28 |
Context
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2018-02-13
| ||
| 18:02 | Remove, for now, the "priority" column from the zonefile_files virtual table. check-in: 8bf5154b user: dan tags: zonefile | |
| 17:33 | Pad the 26 byte Zonefile header to 32 bytes so that the ZonefileIndex object is 8-byte aligned. check-in: fdb6c0c5 user: dan tags: zonefile | |
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2018-02-12
| ||
| 20:04 | Add support for reading simple (no compression, no encryption) zonefile files. check-in: dba42f0e user: dan tags: zonefile | |
Changes
Changes to ext/zonefile/zonefile.c.
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# define ALWAYS(X) (X) # define NEVER(X) (X) #endif #endif /* SQLITE_AMALGAMATION */ #define ZONEFILE_MAGIC_NUMBER 0x464B3138 #define ZONEFILE_SZ_HEADER 26 #define ZONEFILE_SZ_KEYOFFSETS_ENTRY 20 #define ZONEFILE_DEFAULT_MAXAUTOFRAMESIZE (64*1024) #define ZONEFILE_DEFAULT_ENCRYPTION 0 #define ZONEFILE_DEFAULT_COMPRESSION 0 ................................................................................ } static int zonefileGetParams( sqlite3_context *pCtx, /* Leave any error message here */ const char *zJson, /* JSON configuration parameter (or NULL) */ ZonefileWrite *p /* Populate this object before returning */ ){ memset(p, 0, sizeof(ZonefileWrite)); p->maxAutoFrameSize = ZONEFILE_DEFAULT_MAXAUTOFRAMESIZE; return SQLITE_OK; } /* ** Check that there is room in buffer pBuf for at least nByte bytes more ** data. If not, attempt to allocate more space. If the allocation attempt ** fails, leave an error message in context pCtx and return SQLITE_ERROR. ** ................................................................................ szFrame += nBlob; nKey++; } sqlite3_value_free(pPrev); pPrev = 0; /* Create the zonefile header in the in-memory buffer */ zonefilePut32(&aHdr[0], ZONEFILE_MAGIC_NUMBER); aHdr[4] = sWrite.compressionTypeIndexData; aHdr[5] = sWrite.compressionTypeContent; zonefilePut32(&aHdr[6], 0); /* Compression dictionary byte offset */ zonefilePut32(&aHdr[10], ZONEFILE_SZ_HEADER + sFrameIdx.n + sKeyIdx.n); zonefilePut32(&aHdr[14], nFrame); zonefilePut32(&aHdr[18], nKey); aHdr[22] = sWrite.encryptionType; aHdr[23] = 0; /* Encryption key index */ aHdr[24] = 0; /* extended header version */ aHdr[25] = 0; /* extended header size */ assert( ZONEFILE_SZ_HEADER==26 ); rc = zonefileFileWrite(pFd, aHdr, ZONEFILE_SZ_HEADER); if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sFrameIdx.a, sFrameIdx.n); if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sKeyIdx.a, sKeyIdx.n); if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sFrames.a, sFrames.n); if( rc ){ zonefileCtxError(pCtx, "error writing file \"%s\" (fwrite())", zFile); |
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# define ALWAYS(X) (X) # define NEVER(X) (X) #endif #endif /* SQLITE_AMALGAMATION */ #define ZONEFILE_MAGIC_NUMBER 0x464B3138 #define ZONEFILE_SZ_HEADER 32 #define ZONEFILE_SZ_KEYOFFSETS_ENTRY 20 #define ZONEFILE_DEFAULT_MAXAUTOFRAMESIZE (64*1024) #define ZONEFILE_DEFAULT_ENCRYPTION 0 #define ZONEFILE_DEFAULT_COMPRESSION 0 ................................................................................ } static int zonefileGetParams( sqlite3_context *pCtx, /* Leave any error message here */ const char *zJson, /* JSON configuration parameter (or NULL) */ ZonefileWrite *p /* Populate this object before returning */ ){ sqlite3 *db = sqlite3_context_db_handle(pCtx); sqlite3_stmt *pStmt = 0; char *zErr = 0; int rc = SQLITE_OK; int rc2; memset(p, 0, sizeof(ZonefileWrite)); p->maxAutoFrameSize = ZONEFILE_DEFAULT_MAXAUTOFRAMESIZE; rc = zonefilePrepare(db, &pStmt, &zErr,"SELECT key, value FROM json_each(?)"); while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){ const char *zKey = (const char*)sqlite3_column_text(pStmt, 0); int iVal = sqlite3_column_int(pStmt, 1); if( sqlite3_stricmp("maxAutoFrameSize", zKey)==0 ){ p->maxAutoFrameSize = iVal; }else if( sqlite3_stricmp("compressionTypeIndexData", zKey)==0 ){ p->compressionTypeIndexData = iVal; }else if( sqlite3_stricmp("compressionTypeContent", zKey)==0 ){ p->compressionTypeContent = iVal; }else if( sqlite3_stricmp("encryptionType", zKey)==0 ){ p->encryptionType = iVal; }else{ rc = SQLITE_ERROR; zErr = sqlite3_mprintf("unknown parameter name: \"%s\"", zKey); } } rc2 = sqlite3_finalize(pStmt); if( rc==SQLITE_OK ) rc = rc2; if( zErr ){ sqlite3_result_error(pCtx, zErr, -1); sqlite3_free(zErr); } return rc; } /* ** Check that there is room in buffer pBuf for at least nByte bytes more ** data. If not, attempt to allocate more space. If the allocation attempt ** fails, leave an error message in context pCtx and return SQLITE_ERROR. ** ................................................................................ szFrame += nBlob; nKey++; } sqlite3_value_free(pPrev); pPrev = 0; /* Create the zonefile header in the in-memory buffer */ memset(aHdr, 0, ZONEFILE_SZ_HEADER); zonefilePut32(&aHdr[0], ZONEFILE_MAGIC_NUMBER); aHdr[4] = sWrite.compressionTypeIndexData; aHdr[5] = sWrite.compressionTypeContent; zonefilePut32(&aHdr[6], 0); /* Compression dictionary byte offset */ zonefilePut32(&aHdr[10], ZONEFILE_SZ_HEADER + sFrameIdx.n + sKeyIdx.n); zonefilePut32(&aHdr[14], nFrame); zonefilePut32(&aHdr[18], nKey); aHdr[22] = sWrite.encryptionType; aHdr[23] = 0; /* Encryption key index */ aHdr[24] = 0; /* extended header version */ aHdr[25] = 0; /* extended header size */ assert( ZONEFILE_SZ_HEADER>=26 ); rc = zonefileFileWrite(pFd, aHdr, ZONEFILE_SZ_HEADER); if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sFrameIdx.a, sFrameIdx.n); if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sKeyIdx.a, sKeyIdx.n); if( rc==SQLITE_OK ) rc = zonefileFileWrite(pFd, sFrames.a, sFrames.n); if( rc ){ zonefileCtxError(pCtx, "error writing file \"%s\" (fwrite())", zFile); |