From 7531bed02224d524bf77bc9f8eb6db3426a6a051 Mon Sep 17 00:00:00 2001
From: Stephen Lombardo <sjlombardo@zetetic.net>
Date: Sat, 19 Feb 2011 14:57:11 -0500
Subject: [PATCH] allow HMAC behavior override via DEFAULT_USE_HMAC

---
 src/crypto.c | 2 +-
 src/crypto.h | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/crypto.c b/src/crypto.c
index 416c750..e207326 100644
--- a/src/crypto.c
+++ b/src/crypto.c
@@ -613,7 +613,7 @@ int sqlite3CodecAttach(sqlite3* db, int nDb, const void *zKey, int nKey) {
 
     /* Use HMAC signatures by default. Note that codec_set_use_hmac will implicity call
        codec_set_page_size to set the default */
-    if((rc = codec_set_use_hmac(db, nDb, 1)) != SQLITE_OK) return rc;
+    if((rc = codec_set_use_hmac(db, nDb, DEFAULT_USE_HMAC)) != SQLITE_OK) return rc;
 
     cipher_ctx_copy(ctx->write_ctx, ctx->read_ctx);
 
diff --git a/src/crypto.h b/src/crypto.h
index e5d855f..b9f7d22 100644
--- a/src/crypto.h
+++ b/src/crypto.h
@@ -48,6 +48,10 @@
 #define PBKDF2_ITER 4000
 #endif
 
+#ifndef DEFAULT_USE_HMAC
+#define DEFAULT_USE_HMAC 1
+#endif
+
 void sqlite3pager_get_codec(Pager *pPager, void **ctx);
 int sqlite3pager_is_mj_pgno(Pager *pPager, Pgno pgno);
 sqlite3_file *sqlite3Pager_get_fd(Pager *pPager);