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Swap btree for write, reset password on codec - working.

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This commit is contained in:
Nick Parker 2013-07-26 09:20:18 -05:00
parent b92ddfc1ef
commit fb14d957ca
1 changed files with 8 additions and 3 deletions
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11
src/crypto_impl.c
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@ -871,6 +871,7 @@ int sqlcipher_codec_ctx_migrate(codec_ctx *ctx) {
u32 meta;
int rc = 0;
int command_idx = 0;
int password_sz;
int saved_flags;
int saved_nChange;
int saved_nTotalChange;
@ -879,7 +880,7 @@ int sqlcipher_codec_ctx_migrate(codec_ctx *ctx) {
sqlite3 *db = ctx->pBt->db;
const char *db_filename = sqlite3_db_filename(db, "main");
const char *migrated_db_filename = sqlite3_mprintf("%s-migrated", db_filename);
const char *key = ctx->read_ctx->pass;
char *key = ctx->read_ctx->pass;
static const unsigned char aCopy[] = {
BTREE_SCHEMA_VERSION, 1, /* Add one to the old schema cookie */
BTREE_DEFAULT_CACHE_SIZE, 0, /* Preserve the default page cache size */
@ -932,18 +933,22 @@ int sqlcipher_codec_ctx_migrate(codec_ctx *ctx) {
rc = sqlite3_exec(db, "BEGIN;", NULL, NULL, NULL);
rc = sqlite3BtreeBeginTrans(pSrc, 2);
//rc = sqlite3BtreeBeginTrans(pDest, 2);
rc = sqlite3BtreeBeginTrans(pDest, 2);
assert( 1==sqlite3BtreeIsInTrans(pDest) );
assert( 1==sqlite3BtreeIsInTrans(pSrc) );
sqlite3CodecGetKey(db, db->nDb - 1, &key, &password_sz);
sqlcipher_codec_ctx_set_pass(ctx, key, password_sz, 2);
int i = 0;
for(i=0; i<ArraySize(aCopy); i+=2){
sqlite3BtreeGetMeta(pSrc, aCopy[i], &meta);
rc = sqlite3BtreeUpdateMeta(pDest, aCopy[i], meta+aCopy[i+1]);
if( NEVER(rc!=SQLITE_OK) ) goto handle_error;
}
rc = sqlite3BtreeCopyFile(pSrc, pDest);
rc = sqlite3BtreeCopyFile(pDest, pSrc);
if( rc!=SQLITE_OK ) goto handle_error;
rc = sqlite3BtreeCommit(pDest);