sqlcipher compatibility changes for upstream 3.6.17

src/crypto.c

@@ -47,6 +47,8 @@
 #define CODEC_TRACE(X)
 #endif
 
+void sqlite3FreeCodecArg(void *pCodecArg);
+
 typedef struct {
   int derive_key;
   EVP_CIPHER *evp_cipher;
@@ -441,7 +443,7 @@ int sqlite3CodecAttach(sqlite3* db, int nDb, const void *zKey, int nKey) {
       RAND_pseudo_bytes(ctx->kdf_salt, FILE_HEADER_SZ);
     }
 
-    sqlite3PagerSetCodec(sqlite3BtreePager(pDb->pBt), sqlite3Codec, (void *) ctx);
+    sqlite3pager_sqlite3PagerSetCodec(sqlite3BtreePager(pDb->pBt), sqlite3Codec, NULL, sqlite3FreeCodecArg, (void *) ctx);
 
     codec_set_cipher_name(db, nDb, CIPHER, 0);
     codec_set_kdf_iter(db, nDb, PBKDF2_ITER, 0);
@@ -454,11 +456,10 @@ int sqlite3CodecAttach(sqlite3* db, int nDb, const void *zKey, int nKey) {
   return SQLITE_ERROR;
 }
 
-int sqlite3FreeCodecArg(void *pCodecArg) {
+void sqlite3FreeCodecArg(void *pCodecArg) {
   codec_ctx *ctx = (codec_ctx *) pCodecArg;
-  if(pCodecArg == NULL) return SQLITE_ERROR;
+  if(pCodecArg == NULL) return;
   codec_ctx_free(&ctx); // wipe and free allocated memory for the context 
-  return SQLITE_OK;
 }
 
 void sqlite3_activate_see(const char* in) {

src/crypto.h

@@ -51,6 +51,13 @@
 void sqlite3pager_get_codec(Pager *pPager, void **ctx);
 int sqlite3pager_is_mj_pgno(Pager *pPager, Pgno pgno);
 sqlite3_file *sqlite3Pager_get_fd(Pager *pPager);
+void sqlite3pager_sqlite3PagerSetCodec(
+  Pager *pPager,
+  void *(*xCodec)(void*,void*,Pgno,int),
+  void (*xCodecSizeChng)(void*,int,int),
+  void (*xCodecFree)(void*),
+  void *pCodec
+);
 
 #endif
 #endif

src/pager.c

@@ -2645,16 +2645,6 @@ int sqlite3PagerClose(Pager *pPager){
   IOTRACE(("CLOSE %p\n", pPager))
   sqlite3OsClose(pPager->fd);
 
-  /* BEGIN CRYPTO */
-#ifdef SQLITE_HAS_CODEC
-  extern int sqlite3FreeCodecArg(void *);
-  if(pPager->pCodecArg) sqlite3FreeCodecArg(pPager->pCodecArg);
-#endif
-  /* END CRYPTO */
-
-  sqlite3PageFree(pPager->pTmpSpace);
-  sqlite3PcacheClose(pPager->pPCache);
-
 #ifdef SQLITE_HAS_CODEC
   if( pPager->xCodecFree ) pPager->xCodecFree(pPager->pCodec);
 #endif
@@ -5339,7 +5329,7 @@ sqlite3_backup **sqlite3PagerBackupPtr(Pager *pPager){
 /* BEGIN CRYPTO */
 #ifdef SQLITE_HAS_CODEC
 void sqlite3pager_get_codec(Pager *pPager, void **ctx) {
-  *ctx = pPager->pCodecArg;
+  *ctx = pPager->pCodec;
 }
 
 int sqlite3pager_is_mj_pgno(Pager *pPager, Pgno pgno) {
@@ -5350,6 +5340,17 @@ sqlite3_file *sqlite3Pager_get_fd(Pager *pPager) {
   return (isOpen(pPager->fd)) ? pPager->fd : NULL;
 }
 
+void sqlite3pager_sqlite3PagerSetCodec(
+  Pager *pPager,
+  void *(*xCodec)(void*,void*,Pgno,int),
+  void (*xCodecSizeChng)(void*,int,int),
+  void (*xCodecFree)(void*),
+  void *pCodec
+){
+  sqlite3PagerSetCodec(pPager, xCodec, xCodecSizeChng, xCodecFree, pCodec); 
+}
+
+
 #endif
 /* END CRYPTO */