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resolve bug where page size is improperly set

This commit is contained in:
Stephen Lombardo 2010-10-01 13:07:37 -04:00
parent 680e30f229
commit a1439c8d71
1 changed files with 16 additions and 1 deletions
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17
src/crypto.c
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@ -461,7 +461,22 @@ int sqlite3CodecAttach(sqlite3* db, int nDb, const void *zKey, int nKey) {
codec_set_pass_key(db, nDb, zKey, nKey, 0);
cipher_ctx_copy(ctx->write_ctx, ctx->read_ctx);
sqlite3BtreeSetPageSize(ctx->pBt, sqlite3BtreeGetPageSize(ctx->pBt), EVP_MAX_IV_LENGTH, 0);
/* Always overwrite page size and set to the default because the first page of the database
in encrypted and thus sqlite can't effectively determine the pagesize. this causes an issue in
cases where bytes 16 & 17 of the page header are a power of 2 as reported by John Lehman
Note: before forcing the page size we need to force pageSizeFixed to 0, else
sqliteBtreeSetPageSize will block the change
*/
pDb->pBt->pBt->pageSizeFixed = 0;
sqlite3BtreeSetPageSize(ctx->pBt, SQLITE_DEFAULT_PAGE_SIZE, EVP_MAX_IV_LENGTH, 0);
/* if fd is null, then this is an in-memory database and
we dont' want to overwrite the AutoVacuum settings
if not null, then set to the default */
if(fd != NULL) {
sqlite3BtreeSetAutoVacuum(ctx->pBt, SQLITE_DEFAULT_AUTOVACUUM);
}
}
return SQLITE_OK;
}