BaseTools/VolInfo: Fix printf issue using '%ls' in format string

https://bugzilla.tianocore.org/show_bug.cgi?id=257

For GCC compilers, when building with option '-fshort-wchar', wide char
string format '%ls' does not work properly for printf() function. The
string specified by '%ls' will not be printed.

This commit avoids using '%ls' for printf() function and converts the wide
char string to char string for printing.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
diff --git a/BaseTools/Source/C/VolInfo/VolInfo.c b/BaseTools/Source/C/VolInfo/VolInfo.c
index 46c7212..71917af 100644
--- a/BaseTools/Source/C/VolInfo/VolInfo.c
+++ b/BaseTools/Source/C/VolInfo/VolInfo.c
@@ -148,6 +148,65 @@
   VOID

   );

 

+UINT32

+UnicodeStrLen (

+  IN CHAR16 *String

+  )

+  /*++

+

+  Routine Description:

+

+  Returns the length of a null-terminated unicode string.

+

+  Arguments:

+

+    String - The pointer to a null-terminated unicode string.

+

+  Returns:

+

+    N/A

+

+  --*/

+{

+  UINT32  Length;

+

+  for (Length = 0; *String != L'\0'; String++, Length++) {

+    ;

+  }

+  return Length;

+}

+

+VOID

+Unicode2AsciiString (

+  IN  CHAR16 *Source,

+  OUT CHAR8  *Destination

+  )

+  /*++

+

+  Routine Description:

+

+  Convert a null-terminated unicode string to a null-terminated ascii string.

+

+  Arguments:

+

+    Source      - The pointer to the null-terminated input unicode string.

+    Destination - The pointer to the null-terminated output ascii string.

+

+  Returns:

+

+    N/A

+

+  --*/

+{

+  while (*Source != '\0') {

+    *(Destination++) = (CHAR8) *(Source++);

+  }

+  //

+  // End the ascii with a NULL.

+  //

+  *Destination = '\0';

+}

+

 int

 main (

   int       argc,

@@ -1606,6 +1665,7 @@
   UINT32              RealHdrLen;

   CHAR8               *ToolInputFileName;

   CHAR8               *ToolOutputFileName;

+  CHAR8               *UIFileName;

 

   ParsedLength = 0;

   ToolInputFileName = NULL;

@@ -1714,7 +1774,14 @@
       break;

 

     case EFI_SECTION_USER_INTERFACE:

-      printf ("  String: %ls\n", (wchar_t *) &((EFI_USER_INTERFACE_SECTION *) Ptr)->FileNameString);

+      UIFileName = (CHAR8 *) malloc (UnicodeStrLen (((EFI_USER_INTERFACE_SECTION *) Ptr)->FileNameString) + 1);

+      if (UIFileName == NULL) {

+        Error (NULL, 0, 4001, "Resource", "memory cannot be allocated!");

+        return EFI_OUT_OF_RESOURCES;

+      }

+      Unicode2AsciiString (((EFI_USER_INTERFACE_SECTION *) Ptr)->FileNameString, UIFileName);

+      printf ("  String: %s\n", UIFileName);

+      free (UIFileName);

       break;

 

     case EFI_SECTION_FIRMWARE_VOLUME_IMAGE: