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[RTL]
- Formatting only (no code changes) svn path=/trunk/; revision=72557
This commit is contained in:
Dmitry Chapyshev
parent
6d4d06afbb
commit
76de8ee7ce
1 changed files with 248 additions and 224 deletions
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@ -24,259 +24,279 @@ const PCHAR RtlpShortIllegals = ";+=[],\"*\\<>/?:|";
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static BOOLEAN
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RtlpIsShortIllegal(CHAR Char)
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{
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return strchr(RtlpShortIllegals, Char) ? TRUE : FALSE;
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return strchr(RtlpShortIllegals, Char) ? TRUE : FALSE;
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}
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static USHORT
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RtlpGetCheckSum(PUNICODE_STRING Name)
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{
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USHORT Hash, Saved;
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WCHAR * CurChar;
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USHORT Len;
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USHORT Hash, Saved;
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WCHAR* CurChar;
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USHORT Len;
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if (Name->Length == 0)
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{
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return 0;
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}
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if (Name->Length == 0)
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{
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return 0;
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}
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if (Name->Length == sizeof(WCHAR))
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{
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return Name->Buffer[0];
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}
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if (Name->Length == sizeof(WCHAR))
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{
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return Name->Buffer[0];
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}
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CurChar = Name->Buffer;
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Hash = (*CurChar << 8) + *(CurChar + 1);
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if (Name->Length == 2 * sizeof(WCHAR))
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{
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return Hash;
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}
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CurChar = Name->Buffer;
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Hash = (*CurChar << 8) + *(CurChar + 1);
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Saved = Hash;
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Len = 2;
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do
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{
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CurChar = CurChar + 2;
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Hash = (Hash << 7) + *CurChar;
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Hash = (Saved >> 1) + (Hash << 8);
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if (Len + 1 < Name->Length / sizeof(WCHAR))
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{
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Hash += *(CurChar + 1);
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}
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Saved = Hash;
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Len += 2;
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} while (Len < Name->Length / sizeof(WCHAR));
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if (Name->Length == 2 * sizeof(WCHAR))
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{
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return Hash;
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}
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return Hash;
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Saved = Hash;
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Len = 2;
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do
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{
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CurChar = CurChar + 2;
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Hash = (Hash << 7) + *CurChar;
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Hash = (Saved >> 1) + (Hash << 8);
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if (Len + 1 < Name->Length / sizeof(WCHAR))
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{
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Hash += *(CurChar + 1);
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}
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Saved = Hash;
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Len += 2;
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} while (Len < Name->Length / sizeof(WCHAR));
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return Hash;
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}
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static ULONG
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RtlpGetIndexLength(ULONG Index)
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{
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ULONG Length = 0;
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while (Index)
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{
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Index /= 10;
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Length++;
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}
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return Length ? Length : 1;
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ULONG Length = 0;
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while (Index)
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{
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Index /= 10;
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Length++;
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}
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return Length ? Length : 1;
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}
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/*
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* @implemented
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*/
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VOID NTAPI
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VOID
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NTAPI
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RtlGenerate8dot3Name(IN PUNICODE_STRING Name,
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IN BOOLEAN AllowExtendedCharacters,
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IN OUT PGENERATE_NAME_CONTEXT Context,
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OUT PUNICODE_STRING Name8dot3)
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{
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ULONG Count;
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WCHAR NameBuffer[8];
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WCHAR ExtBuffer[4];
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ULONG StrLength;
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ULONG NameLength;
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ULONG ExtLength;
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ULONG CopyLength;
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ULONG DotPos;
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ULONG i, j;
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ULONG IndexLength;
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ULONG CurrentIndex;
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USHORT Checksum;
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WCHAR c;
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ULONG Count;
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WCHAR NameBuffer[8];
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WCHAR ExtBuffer[4];
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ULONG StrLength;
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ULONG NameLength;
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ULONG ExtLength;
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ULONG CopyLength;
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ULONG DotPos;
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ULONG i, j;
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ULONG IndexLength;
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ULONG CurrentIndex;
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USHORT Checksum;
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WCHAR c;
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StrLength = Name->Length / sizeof(WCHAR);
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DPRINT("StrLength: %lu\n", StrLength);
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StrLength = Name->Length / sizeof(WCHAR);
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/* Find last dot in Name */
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DotPos = StrLength;
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for (i = 0; i < StrLength; i++)
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{
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if (Name->Buffer[i] == L'.')
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{
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DotPos = i;
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}
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}
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DPRINT("StrLength: %lu\n", StrLength);
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DPRINT("DotPos: %lu\n", DotPos);
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/* Find last dot in Name */
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DotPos = StrLength;
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for (i = 0; i < StrLength; i++)
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{
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if (Name->Buffer[i] == L'.')
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{
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DotPos = i;
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}
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}
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/* Copy name (6 valid characters max) */
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for (i = 0, NameLength = 0; NameLength < 6 && i < DotPos; i++)
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{
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c = UNICODE_NULL;
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if (AllowExtendedCharacters)
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{
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c = RtlUpcaseUnicodeChar(Name->Buffer[i]);
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Count = 1;
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}
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else
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{
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RtlUpcaseUnicodeToOemN((CHAR *)&c, sizeof(CHAR), &Count, &Name->Buffer[i], sizeof(WCHAR));
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}
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DPRINT("DotPos: %lu\n", DotPos);
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if (Count != 1 || c == UNICODE_NULL || RtlpIsShortIllegal(c))
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{
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NameBuffer[NameLength++] = L'_';
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}
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else if (c != L'.' && c != L' ')
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{
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if (isgraph(c) || (AllowExtendedCharacters && iswgraph(c)))
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{
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NameBuffer[NameLength++] = c;
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}
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}
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}
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/* Copy name (6 valid characters max) */
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for (i = 0, NameLength = 0; NameLength < 6 && i < DotPos; i++)
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{
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c = UNICODE_NULL;
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if (AllowExtendedCharacters)
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{
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c = RtlUpcaseUnicodeChar(Name->Buffer[i]);
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Count = 1;
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}
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else
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{
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RtlUpcaseUnicodeToOemN((CHAR *)&c, sizeof(CHAR), &Count, &Name->Buffer[i], sizeof(WCHAR));
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}
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DPRINT("NameBuffer: '%.08S'\n", NameBuffer);
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DPRINT("NameLength: %lu\n", NameLength);
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/* Copy extension (4 valid characters max) */
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if (DotPos < StrLength)
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{
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for (i = DotPos, ExtLength = 0; ExtLength < 4 && i < StrLength; i++)
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{
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c = UNICODE_NULL;
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if (AllowExtendedCharacters)
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{
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c = RtlUpcaseUnicodeChar(Name->Buffer[i]);
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Count = 1;
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}
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else
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{
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RtlUpcaseUnicodeToOemN((CHAR *)&c, sizeof(CHAR), &Count, &Name->Buffer[i], sizeof(WCHAR));
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}
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if (Count != 1 || c == UNICODE_NULL || RtlpIsShortIllegal(c))
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{
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ExtBuffer[ExtLength++] = L'_';
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}
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else if (c != L' ')
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{
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if (isgraph(c) || c == L'.' || (AllowExtendedCharacters && iswgraph(c)))
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if (Count != 1 || c == UNICODE_NULL || RtlpIsShortIllegal(c))
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{
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NameBuffer[NameLength++] = L'_';
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}
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else if (c != L'.' && c != L' ')
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{
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if (isgraph(c) || (AllowExtendedCharacters && iswgraph(c)))
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{
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ExtBuffer[ExtLength++] = c;
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NameBuffer[NameLength++] = c;
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}
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}
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}
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}
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else
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{
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ExtLength = 0;
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}
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DPRINT("ExtBuffer: '%.04S'\n", ExtBuffer);
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DPRINT("ExtLength: %lu\n", ExtLength);
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}
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}
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/* Determine next index */
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IndexLength = RtlpGetIndexLength(Context->LastIndexValue);
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if (Context->CheckSumInserted)
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{
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CopyLength = min(NameLength, 8 - 4 - 1 - IndexLength);
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Checksum = RtlpGetCheckSum(Name);
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}
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else
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{
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CopyLength = min(NameLength, 8 - 1 - IndexLength);
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Checksum = 0;
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}
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DPRINT("NameBuffer: '%.08S'\n", NameBuffer);
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DPRINT("NameLength: %lu\n", NameLength);
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DPRINT("CopyLength: %lu\n", CopyLength);
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/* Copy extension (4 valid characters max) */
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if (DotPos < StrLength)
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{
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for (i = DotPos, ExtLength = 0; ExtLength < 4 && i < StrLength; i++)
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{
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c = UNICODE_NULL;
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if ((Context->NameLength == CopyLength) &&
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(wcsncmp(Context->NameBuffer, NameBuffer, CopyLength) == 0) &&
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(Context->ExtensionLength == ExtLength) &&
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(wcsncmp(Context->ExtensionBuffer, ExtBuffer, ExtLength) == 0) &&
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(Checksum == Context->Checksum) &&
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(Context->LastIndexValue < 999))
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{
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Context->LastIndexValue++;
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if (Context->CheckSumInserted == FALSE &&
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if (AllowExtendedCharacters)
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{
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c = RtlUpcaseUnicodeChar(Name->Buffer[i]);
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Count = 1;
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}
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else
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{
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RtlUpcaseUnicodeToOemN((CHAR *)&c, sizeof(CHAR), &Count, &Name->Buffer[i], sizeof(WCHAR));
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}
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if (Count != 1 || c == UNICODE_NULL || RtlpIsShortIllegal(c))
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{
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ExtBuffer[ExtLength++] = L'_';
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}
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else if (c != L' ')
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{
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if (isgraph(c) || c == L'.' || (AllowExtendedCharacters && iswgraph(c)))
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{
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ExtBuffer[ExtLength++] = c;
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}
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}
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}
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}
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else
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{
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ExtLength = 0;
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}
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DPRINT("ExtBuffer: '%.04S'\n", ExtBuffer);
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DPRINT("ExtLength: %lu\n", ExtLength);
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/* Determine next index */
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IndexLength = RtlpGetIndexLength(Context->LastIndexValue);
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if (Context->CheckSumInserted)
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{
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CopyLength = min(NameLength, 8 - 4 - 1 - IndexLength);
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Checksum = RtlpGetCheckSum(Name);
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}
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else
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{
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CopyLength = min(NameLength, 8 - 1 - IndexLength);
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Checksum = 0;
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}
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DPRINT("CopyLength: %lu\n", CopyLength);
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if ((Context->NameLength == CopyLength) &&
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(wcsncmp(Context->NameBuffer, NameBuffer, CopyLength) == 0) &&
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(Context->ExtensionLength == ExtLength) &&
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(wcsncmp(Context->ExtensionBuffer, ExtBuffer, ExtLength) == 0) &&
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(Checksum == Context->Checksum) &&
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(Context->LastIndexValue < 999))
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{
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Context->LastIndexValue++;
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if (Context->CheckSumInserted == FALSE &&
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Context->LastIndexValue > 9)
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{
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Context->CheckSumInserted = TRUE;
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Context->LastIndexValue = 1;
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Context->Checksum = RtlpGetCheckSum(Name);
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}
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}
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else
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{
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Context->LastIndexValue = 1;
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if (NameLength == 0)
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{
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Context->CheckSumInserted = TRUE;
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Context->Checksum = RtlpGetCheckSum(Name);
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}
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else
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{
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Context->CheckSumInserted = FALSE;
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}
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}
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{
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Context->CheckSumInserted = TRUE;
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Context->LastIndexValue = 1;
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Context->Checksum = RtlpGetCheckSum(Name);
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}
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}
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else
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{
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Context->LastIndexValue = 1;
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IndexLength = RtlpGetIndexLength(Context->LastIndexValue);
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if (NameLength == 0)
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{
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Context->CheckSumInserted = TRUE;
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Context->Checksum = RtlpGetCheckSum(Name);
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}
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else
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{
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Context->CheckSumInserted = FALSE;
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}
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}
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DPRINT("CurrentIndex: %lu, IndexLength %lu\n", Context->LastIndexValue, IndexLength);
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IndexLength = RtlpGetIndexLength(Context->LastIndexValue);
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if (Context->CheckSumInserted)
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{
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CopyLength = min(NameLength, 8 - 4 - 1 - IndexLength);
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}
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else
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{
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CopyLength = min(NameLength, 8 - 1 - IndexLength);
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}
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DPRINT("CurrentIndex: %lu, IndexLength %lu\n", Context->LastIndexValue, IndexLength);
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/* Build the short name */
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memcpy(Name8dot3->Buffer, NameBuffer, CopyLength * sizeof(WCHAR));
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j = CopyLength;
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if (Context->CheckSumInserted)
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{
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Checksum = Context->Checksum;
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for (i = 0; i < 4; i++)
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{
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Name8dot3->Buffer[j++] = (Checksum & 0xF) > 9 ? (Checksum & 0xF) + L'A' - 10 : (Checksum & 0xF) + L'0';
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Checksum >>= 4;
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}
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j = CopyLength + 4;
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}
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Name8dot3->Buffer[j++] = L'~';
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j += IndexLength - 1;
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CurrentIndex = Context->LastIndexValue;
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for (i = 0; i < IndexLength; i++)
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{
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Name8dot3->Buffer[j--] = (CurrentIndex % 10) + L'0';
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CurrentIndex /= 10;
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}
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j += IndexLength + 1;
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if (Context->CheckSumInserted)
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{
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CopyLength = min(NameLength, 8 - 4 - 1 - IndexLength);
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}
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else
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{
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CopyLength = min(NameLength, 8 - 1 - IndexLength);
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}
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memcpy(Name8dot3->Buffer + j, ExtBuffer, ExtLength * sizeof(WCHAR));
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Name8dot3->Length = (USHORT)(j + ExtLength) * sizeof(WCHAR);
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/* Build the short name */
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memcpy(Name8dot3->Buffer, NameBuffer, CopyLength * sizeof(WCHAR));
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DPRINT("Name8dot3: '%wZ'\n", Name8dot3);
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j = CopyLength;
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/* Update context */
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Context->NameLength = (UCHAR)CopyLength;
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Context->ExtensionLength = ExtLength;
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memcpy(Context->NameBuffer, NameBuffer, CopyLength * sizeof(WCHAR));
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memcpy(Context->ExtensionBuffer, ExtBuffer, ExtLength * sizeof(WCHAR));
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if (Context->CheckSumInserted)
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{
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Checksum = Context->Checksum;
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for (i = 0; i < 4; i++)
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{
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Name8dot3->Buffer[j++] = (Checksum & 0xF) > 9 ? (Checksum & 0xF) + L'A' - 10 : (Checksum & 0xF) + L'0';
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Checksum >>= 4;
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}
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j = CopyLength + 4;
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}
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Name8dot3->Buffer[j++] = L'~';
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j += IndexLength - 1;
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CurrentIndex = Context->LastIndexValue;
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for (i = 0; i < IndexLength; i++)
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{
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Name8dot3->Buffer[j--] = (CurrentIndex % 10) + L'0';
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CurrentIndex /= 10;
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}
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j += IndexLength + 1;
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memcpy(Name8dot3->Buffer + j, ExtBuffer, ExtLength * sizeof(WCHAR));
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Name8dot3->Length = (USHORT)(j + ExtLength) * sizeof(WCHAR);
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DPRINT("Name8dot3: '%wZ'\n", Name8dot3);
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/* Update context */
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Context->NameLength = (UCHAR)CopyLength;
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Context->ExtensionLength = ExtLength;
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memcpy(Context->NameBuffer, NameBuffer, CopyLength * sizeof(WCHAR));
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memcpy(Context->ExtensionBuffer, ExtBuffer, ExtLength * sizeof(WCHAR));
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}
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@ -290,10 +310,9 @@ _Must_inspect_result_
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NTSYSAPI
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BOOLEAN
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NTAPI
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RtlIsNameLegalDOS8Dot3 (
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_In_ PCUNICODE_STRING Name,
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_Inout_opt_ POEM_STRING OemName,
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_Out_opt_ PBOOLEAN NameContainsSpaces)
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RtlIsNameLegalDOS8Dot3(IN PCUNICODE_STRING Name,
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IN OUT POEM_STRING OemName,
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OUT PBOOLEAN NameContainsSpaces OPTIONAL)
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{
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static const char Illegal[] = "*?<>|\"+=,;[]:/\\\345";
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int Dot = -1;
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@ -322,6 +341,7 @@ RtlIsNameLegalDOS8Dot3 (
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{
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if (OemName->Length != 1 && (OemName->Length != 2 || OemName->Buffer[1] != '.')) return FALSE;
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if (NameContainsSpaces) *NameContainsSpaces = FALSE;
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return TRUE;
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}
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@ -329,18 +349,20 @@ RtlIsNameLegalDOS8Dot3 (
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{
|
||||
switch (OemName->Buffer[i])
|
||||
{
|
||||
case ' ':
|
||||
/* leading/trailing spaces not allowed */
|
||||
if (!i || i == OemName->Length-1 || OemName->Buffer[i+1] == '.') return FALSE;
|
||||
GotSpace = TRUE;
|
||||
break;
|
||||
case '.':
|
||||
if (Dot != -1) return FALSE;
|
||||
Dot = i;
|
||||
break;
|
||||
default:
|
||||
if (strchr(Illegal, OemName->Buffer[i])) return FALSE;
|
||||
break;
|
||||
case ' ':
|
||||
/* leading/trailing spaces not allowed */
|
||||
if (!i || i == OemName->Length-1 || OemName->Buffer[i+1] == '.') return FALSE;
|
||||
GotSpace = TRUE;
|
||||
break;
|
||||
|
||||
case '.':
|
||||
if (Dot != -1) return FALSE;
|
||||
Dot = i;
|
||||
break;
|
||||
|
||||
default:
|
||||
if (strchr(Illegal, OemName->Buffer[i])) return FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* check file part is shorter than 8, extension shorter than 3
|
||||
|
|
@ -354,7 +376,9 @@ RtlIsNameLegalDOS8Dot3 (
|
|||
{
|
||||
if (Dot > 8 || (OemName->Length - Dot > 4) || Dot == OemName->Length - 1) return FALSE;
|
||||
}
|
||||
|
||||
if (NameContainsSpaces) *NameContainsSpaces = GotSpace;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue