diff options
Diffstat (limited to 'FatPkg/EnhancedFatDxe/FileName.c')
| -rw-r--r-- | FatPkg/EnhancedFatDxe/FileName.c | 118 |
1 files changed, 65 insertions, 53 deletions
diff --git a/FatPkg/EnhancedFatDxe/FileName.c b/FatPkg/EnhancedFatDxe/FileName.c index d2d1fb3117..17914ccf92 100644 --- a/FatPkg/EnhancedFatDxe/FileName.c +++ b/FatPkg/EnhancedFatDxe/FileName.c @@ -23,16 +23,16 @@ SPDX-License-Identifier: BSD-2-Clause-Patent **/
BOOLEAN
FatCheckIs8Dot3Name (
- IN CHAR16 *FileName,
- OUT CHAR8 *File8Dot3Name
+ IN CHAR16 *FileName,
+ OUT CHAR8 *File8Dot3Name
)
{
- BOOLEAN PossibleShortName;
- CHAR16 *TempName;
- CHAR16 *ExtendName;
- CHAR16 *SeparateDot;
- UINTN MainNameLen;
- UINTN ExtendNameLen;
+ BOOLEAN PossibleShortName;
+ CHAR16 *TempName;
+ CHAR16 *ExtendName;
+ CHAR16 *SeparateDot;
+ UINTN MainNameLen;
+ UINTN ExtendNameLen;
PossibleShortName = TRUE;
SeparateDot = NULL;
@@ -58,12 +58,13 @@ FatCheckIs8Dot3Name ( ExtendName = SeparateDot + 1;
ExtendNameLen = TempName - ExtendName;
}
+
//
// We scan the filename for the second time
// to check if there exists any extra blanks and dots
//
while (--TempName >= FileName) {
- if ((*TempName == L'.' || *TempName == L' ') && (TempName != SeparateDot)) {
+ if (((*TempName == L'.') || (*TempName == L' ')) && (TempName != SeparateDot)) {
//
// There exist extra blanks and dots
//
@@ -109,8 +110,8 @@ FatCheckIs8Dot3Name ( STATIC
UINTN
FatTrimAsciiTrailingBlanks (
- IN CHAR8 *Name,
- IN UINTN Len
+ IN CHAR8 *Name,
+ IN UINTN Len
)
{
while (Len > 0 && Name[Len - 1] == ' ') {
@@ -133,10 +134,10 @@ FatTrimAsciiTrailingBlanks ( **/
VOID
FatNameToStr (
- IN CHAR8 *FatName,
- IN UINTN Len,
- IN UINTN LowerCase,
- OUT CHAR16 *Str
+ IN CHAR8 *FatName,
+ IN UINTN Len,
+ IN UINTN LowerCase,
+ OUT CHAR16 *Str
)
{
//
@@ -166,20 +167,21 @@ FatNameToStr ( **/
VOID
FatCreate8Dot3Name (
- IN FAT_OFILE *Parent,
- IN FAT_DIRENT *DirEnt
+ IN FAT_OFILE *Parent,
+ IN FAT_DIRENT *DirEnt
)
{
- CHAR8 *ShortName;
- CHAR8 *ShortNameChar;
- UINTN BaseTagLen;
- UINTN Index;
- UINTN Retry;
- UINT8 Segment;
+ CHAR8 *ShortName;
+ CHAR8 *ShortNameChar;
+ UINTN BaseTagLen;
+ UINTN Index;
+ UINTN Retry;
+ UINT8 Segment;
+
union {
- UINT32 Crc;
+ UINT32 Crc;
struct HEX_DATA {
- UINT8 Segment : HASH_VALUE_TAG_LEN;
+ UINT8 Segment : HASH_VALUE_TAG_LEN;
} Hex[HASH_VALUE_TAG_LEN];
} HashValue;
//
@@ -195,13 +197,14 @@ FatCreate8Dot3Name ( if (BaseTagLen > SPEC_BASE_TAG_LEN) {
BaseTagLen = SPEC_BASE_TAG_LEN;
}
+
//
// We first use the algorithm described by spec.
//
- ShortNameChar = ShortName + BaseTagLen;
- *ShortNameChar++ = '~';
- *ShortNameChar = '1';
- Retry = 0;
+ ShortNameChar = ShortName + BaseTagLen;
+ *ShortNameChar++ = '~';
+ *ShortNameChar = '1';
+ Retry = 0;
while (*FatShortNameHashSearch (Parent->ODir, ShortName) != NULL) {
*ShortNameChar = (CHAR8)(*ShortNameChar + 1);
if (++Retry == MAX_SPEC_RETRY) {
@@ -225,8 +228,8 @@ FatCreate8Dot3Name ( }
}
- *ShortNameChar++ = '~';
- *ShortNameChar = '1';
+ *ShortNameChar++ = '~';
+ *ShortNameChar = '1';
}
}
}
@@ -245,8 +248,8 @@ FatCreate8Dot3Name ( STATIC
UINT8
FatCheckNameCase (
- IN CHAR16 *Str,
- IN UINT8 InCaseFlag
+ IN CHAR16 *Str,
+ IN UINT8 InCaseFlag
)
{
CHAR16 Buffer[FAT_MAIN_NAME_LEN + 1 + FAT_EXTEND_NAME_LEN + 1];
@@ -265,6 +268,7 @@ FatCheckNameCase ( if (StrCmp (Str, Buffer) == 0) {
OutCaseFlag = InCaseFlag;
}
+
//
// Upper case a copy of the string, if it matches the
// original then the string is upper case
@@ -287,7 +291,7 @@ FatCheckNameCase ( **/
VOID
FatSetCaseFlag (
- IN FAT_DIRENT *DirEnt
+ IN FAT_DIRENT *DirEnt
)
{
CHAR16 LfnBuffer[FAT_MAIN_NAME_LEN + 1 + FAT_EXTEND_NAME_LEN + 1];
@@ -342,14 +346,15 @@ FatSetCaseFlag ( **/
VOID
FatGetFileNameViaCaseFlag (
- IN FAT_DIRENT *DirEnt,
- IN OUT CHAR16 *FileString,
- IN UINTN FileStringMax
+ IN FAT_DIRENT *DirEnt,
+ IN OUT CHAR16 *FileString,
+ IN UINTN FileStringMax
)
{
UINT8 CaseFlag;
CHAR8 *File8Dot3Name;
CHAR16 TempExt[1 + FAT_EXTEND_NAME_LEN + 1];
+
//
// Store file extension like ".txt"
//
@@ -378,8 +383,9 @@ FatCheckSum ( IN CHAR8 *ShortNameString
)
{
- UINTN ShortNameLen;
- UINT8 Sum;
+ UINTN ShortNameLen;
+ UINT8 Sum;
+
Sum = 0;
for (ShortNameLen = FAT_NAME_LEN; ShortNameLen != 0; ShortNameLen--) {
Sum = (UINT8)((((Sum & 1) != 0) ? 0x80 : 0) + (Sum >> 1) + *ShortNameString++);
@@ -402,13 +408,14 @@ FatCheckSum ( **/
CHAR16 *
FatGetNextNameComponent (
- IN CHAR16 *Path,
- OUT CHAR16 *Name
+ IN CHAR16 *Path,
+ OUT CHAR16 *Name
)
{
while (*Path != 0 && *Path != PATH_NAME_SEPARATOR) {
*Name++ = *Path++;
}
+
*Name = 0;
//
// Get off of trailing path name separator
@@ -441,6 +448,7 @@ FatFileNameIsValid ( {
CHAR16 *TempNamePointer;
CHAR16 TempChar;
+
//
// Trim Leading blanks
//
@@ -452,12 +460,13 @@ FatFileNameIsValid ( while (*InputFileName != 0) {
*TempNamePointer++ = *InputFileName++;
}
+
//
// Trim Trailing blanks and dots
//
while (TempNamePointer > OutputFileName) {
TempChar = *(TempNamePointer - 1);
- if (TempChar != L' ' && TempChar != L'.') {
+ if ((TempChar != L' ') && (TempChar != L'.')) {
break;
}
@@ -475,25 +484,28 @@ FatFileNameIsValid ( if (TempNamePointer - OutputFileName > EFI_FILE_STRING_LENGTH) {
return FALSE;
}
+
//
// See if there is any illegal characters within the name
//
do {
- if (*OutputFileName < 0x20 ||
- *OutputFileName == '\"' ||
- *OutputFileName == '*' ||
- *OutputFileName == '/' ||
- *OutputFileName == ':' ||
- *OutputFileName == '<' ||
- *OutputFileName == '>' ||
- *OutputFileName == '?' ||
- *OutputFileName == '\\' ||
- *OutputFileName == '|'
- ) {
+ if ((*OutputFileName < 0x20) ||
+ (*OutputFileName == '\"') ||
+ (*OutputFileName == '*') ||
+ (*OutputFileName == '/') ||
+ (*OutputFileName == ':') ||
+ (*OutputFileName == '<') ||
+ (*OutputFileName == '>') ||
+ (*OutputFileName == '?') ||
+ (*OutputFileName == '\\') ||
+ (*OutputFileName == '|')
+ )
+ {
return FALSE;
}
OutputFileName++;
} while (*OutputFileName != 0);
+
return TRUE;
}
|