upgtools: allow creation of a UPG archive + improvements

Change-Id: I9c3e2eb95f7eb6d41591b006328fd720dfcf93a5

1 files changed, 5 insertions, 0 deletions

diff --git a/utils/nwztools/upgtools/fwp.c b/utils/nwztools/upgtools/fwp.c
index e739b8caef..c300f42f34 100644
--- a/utils/nwztools/upgtools/fwp.c
+++ b/utils/nwztools/upgtools/fwp.c
@@ -29,6 +29,11 @@ int fwp_read(void *in, int size, void *out, uint8_t *key)
     return mg_decrypt_fw(in, size, out, key);
 }
 
+int fwp_write(void *in, int size, void *out, uint8_t *key)
+{
+    return mg_encrypt_fw(in, size, out, key);
+}
+
 static uint8_t g_key[NWZ_KEY_SIZE];
 
 void fwp_setkey(char key[NWZ_KEY_SIZE])