/** @file
-Copyright (c) 2007, Intel Corporation
+Copyright (c) 2007- 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
UINT8 Temp;
UINTN SwapCount;
- SwapCount = (BufferSize - 1) / 2;
+ SwapCount = BufferSize / 2;
for (Index = 0; Index < SwapCount; Index++) {
Temp = Buffer[Index];
Buffer[Index] = Buffer[BufferSize - 1 - Index];
}
}
+/**
+ Converts the unicode character of the string from uppercase to lowercase.
+
+ @param Str String to be converted
+
+ @retval VOID
+
+**/
+VOID
+ToLower (
+ IN OUT CHAR16 *Str
+ )
+{
+ CHAR16 *Ptr;
+
+ for (Ptr = Str; *Ptr != L'\0'; Ptr++) {
+ if (*Ptr >= L'A' && *Ptr <= L'Z') {
+ *Ptr = (CHAR16) (*Ptr - L'A' + L'a');
+ }
+ }
+}
+
/**
Converts binary buffer to Unicode string in reversed byte order from BufToHexString().
NewBuffer = AllocateCopyPool (BufferSize, Buffer);
SwapBuffer (NewBuffer, BufferSize);
- StrBufferLen = (BufferSize + 1) * sizeof (CHAR16);
+ StrBufferLen = BufferSize * sizeof (CHAR16) + 1;
Status = BufToHexString (Str, &StrBufferLen, NewBuffer, BufferSize);
gBS->FreePool (NewBuffer);
+ //
+ // Convert the uppercase to lowercase since <HexAf> is defined in lowercase format.
+ //
+ ToLower (Str);
return Status;
}
return Status;
}
+/**
+ Convert binary representation Config string (e.g. "0041004200430044") to the
+ original string (e.g. "ABCD"). Config string appears in <ConfigHdr> (i.e.
+ "&NAME=<string>"), or Name/Value pair in <ConfigBody> (i.e. "label=<string>").
+
+ @param UnicodeString Original Unicode string.
+ @param StrBufferLen On input: Length in bytes of buffer to hold the Unicode string.
+ Includes tailing '\0' character.
+ On output:
+ If return EFI_SUCCESS, containing length of Unicode string buffer.
+ If return EFI_BUFFER_TOO_SMALL, containg length of string buffer desired.
+ @param ConfigString Binary representation of Unicode String, <string> := (<HexCh>4)+
+
+ @retval EFI_SUCCESS Routine success.
+ @retval EFI_BUFFER_TOO_SMALL The string buffer is too small.
+
+**/
+EFI_STATUS
+ConfigStringToUnicode (
+ IN OUT CHAR16 *UnicodeString,
+ IN OUT UINTN *StrBufferLen,
+ IN CHAR16 *ConfigString
+ )
+{
+ UINTN Index;
+ UINTN Len;
+ UINTN BufferSize;
+ CHAR16 BackupChar;
+
+ Len = StrLen (ConfigString) / 4;
+ BufferSize = (Len + 1) * sizeof (CHAR16);
+
+ if (*StrBufferLen < BufferSize) {
+ *StrBufferLen = BufferSize;
+ return EFI_BUFFER_TOO_SMALL;
+ }
+
+ *StrBufferLen = BufferSize;
+
+ for (Index = 0; Index < Len; Index++) {
+ BackupChar = ConfigString[4];
+ ConfigString[4] = L'\0';
+
+ HexStringToBuf ((UINT8 *) UnicodeString, &BufferSize, ConfigString, NULL);
+
+ ConfigString[4] = BackupChar;
+
+ ConfigString += 4;
+ UnicodeString += 1;
+ }
+
+ //
+ // Add tailing '\0' character
+ //
+ *UnicodeString = L'\0';
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Convert Unicode string to binary representation Config string, e.g.
+ "ABCD" => "0041004200430044". Config string appears in <ConfigHdr> (i.e.
+ "&NAME=<string>"), or Name/Value pair in <ConfigBody> (i.e. "label=<string>").
+
+ @param ConfigString Binary representation of Unicode String, <string> := (<HexCh>4)+
+ @param StrBufferLen On input: Length in bytes of buffer to hold the Unicode string.
+ Includes tailing '\0' character.
+ On output:
+ If return EFI_SUCCESS, containing length of Unicode string buffer.
+ If return EFI_BUFFER_TOO_SMALL, containg length of string buffer desired.
+ @param UnicodeString Original Unicode string.
+
+ @retval EFI_SUCCESS Routine success.
+ @retval EFI_BUFFER_TOO_SMALL The string buffer is too small.
+
+**/
+EFI_STATUS
+UnicodeToConfigString (
+ IN OUT CHAR16 *ConfigString,
+ IN OUT UINTN *StrBufferLen,
+ IN CHAR16 *UnicodeString
+ )
+{
+ UINTN Index;
+ UINTN Len;
+ UINTN BufferSize;
+ CHAR16 *String;
+
+ Len = StrLen (UnicodeString);
+ BufferSize = (Len * 4 + 1) * sizeof (CHAR16);
+
+ if (*StrBufferLen < BufferSize) {
+ *StrBufferLen = BufferSize;
+ return EFI_BUFFER_TOO_SMALL;
+ }
+
+ *StrBufferLen = BufferSize;
+ String = ConfigString;
+
+ for (Index = 0; Index < Len; Index++) {
+ BufToHexString (ConfigString, &BufferSize, (UINT8 *) UnicodeString, 2);
+
+ ConfigString += 4;
+ UnicodeString += 1;
+ }
+
+ //
+ // Add tailing '\0' character
+ //
+ *ConfigString = L'\0';
+
+ //
+ // Convert the uppercase to lowercase since <HexAf> is defined in lowercase format.
+ //
+ ToLower (String);
+ return EFI_SUCCESS;
+}
/**
Construct <ConfigHdr> using routing information GUID/NAME/PATH.
DevicePathSize = GetDevicePathSize (DevicePath);
//
- // GUID=<HexCh>32&NAME=<Alpha>NameStrLen&PATH=<HexChar>DevicePathStrLen <NULL>
- // | 5 | 32 | 6 | NameStrLen | 6 | DevicePathStrLen |
+ // GUID=<HexCh>32&NAME=<Char>NameStrLen&PATH=<HexChar>DevicePathStrLen <NULL>
+ // | 5 | 32 | 6 | NameStrLen*4 | 6 | DevicePathStrLen | 1 |
//
- BufferSize = (5 + 32 + 6 + NameStrLen + 6 + DevicePathSize * 2 + 1) * sizeof (CHAR16);
+ BufferSize = (5 + 32 + 6 + NameStrLen * 4 + 6 + DevicePathSize * 2 + 1) * sizeof (CHAR16);
if (*StrBufferLen < BufferSize) {
*StrBufferLen = BufferSize;
return EFI_BUFFER_TOO_SMALL;
BufferToHexString (StrPtr, (UINT8 *) Guid, sizeof (EFI_GUID));
StrPtr += 32;
+ //
+ // Convert name string, e.g. name "ABCD" => "&NAME=0041004200430044"
+ //
StrCpy (StrPtr, L"&NAME=");
StrPtr += 6;
if (Name != NULL) {
- StrCpy (StrPtr, Name);
- StrPtr += NameStrLen;
+ BufferSize = (NameStrLen * 4 + 1) * sizeof (CHAR16);
+ UnicodeToConfigString (StrPtr, &BufferSize, Name);
+ StrPtr += (NameStrLen * 4);
}
StrCpy (StrPtr, L"&PATH=");
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