first attempt to write to a file was sucessful, but not the optimal solution

1 files changed, 17 insertions, 4 deletions

diff --git a/memtestEDK/Memtest/ProtocolInformation/ProtocolInformation.c b/memtestEDK/Memtest/ProtocolInformation/ProtocolInformation.c
index 59e424f..547c91e 100644
--- a/memtestEDK/Memtest/ProtocolInformation/ProtocolInformation.c
+++ b/memtestEDK/Memtest/ProtocolInformation/ProtocolInformation.c
@@ -166,10 +166,10 @@ UefiMain (
               root, 
               &token,
               L"log",
-              EFI_FILE_MODE_READ,
-              EFI_FILE_READ_ONLY | EFI_FILE_HIDDEN | EFI_FILE_SYSTEM);
+              EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_CREATE,
+              0);
 
-            UINTN fileSize = 50;
+            UINTN fileSize = 50; // TODO get the actual size
             CHAR16* fileBuffer = NULL;
             efiStatus = bs->AllocatePool(EfiLoaderData, (UINTN) (fileSize) , (void **)&fileBuffer);
 
@@ -177,9 +177,22 @@ UefiMain (
             Print(L"Status after file read: %r\n", efiStatus);
             Print(L"File Size: %d\n", fileSize);
             Print(L"File Buffer Pointer: %p\n", fileBuffer);
-
             Print(L"File Content: %a\n", fileBuffer);
 
+            UINT64 currPos;
+
+            token->GetPosition(token, &currPos);
+            Print(L"Current File Position: %d\n", currPos);
+
+            fileBuffer[0] = (CHAR16) 'X';
+            Print(L"New file Buffer: %a\n", fileBuffer);
+
+            token->SetPosition(token, 0);
+
+            efiStatus = token->Write(token, &fileSize, fileBuffer);
+
+            Print(L"Status after file write: %r\n", efiStatus);
+
 
 /*
           EFI_FILE_OPEN         Open;