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fixed RtlUnicodeStringToInteger

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svn path=/trunk/; revision=5973
This commit is contained in:
Vizzini 2003-09-04 06:41:35 +00:00
parent 908c5df187
commit 02ee3e3600
1 changed files with 64 additions and 82 deletions
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146
reactos/ntoskrnl/rtl/unicode.c
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@ -1,10 +1,11 @@
/* $Id: unicode.c,v 1.31 2003/08/20 04:18:31 royce Exp $
/* $Id: unicode.c,v 1.32 2003/09/04 06:41:35 vizzini Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/rtl/unicode.c
* PURPOSE: String functions
* PROGRAMMER: Jason Filby (jasonfilby@yahoo.com)
* PROGRAMMERS: Jason Filby (jasonfilby@yahoo.com)
* Vizzini (vizzini@plasmic.com)
* UPDATE HISTORY:
* Created 10/08/98
*/
@ -1196,96 +1197,77 @@ RtlUnicodeStringToCountedOemString(IN OUT POEM_STRING DestinationString,
*/
NTSTATUS
STDCALL
RtlUnicodeStringToInteger(IN PUNICODE_STRING String,
RtlUnicodeStringToInteger(IN PUNICODE_STRING InString,
IN ULONG Base,
OUT PULONG Value)
{
PWCHAR Str;
ULONG lenmin = 0;
ULONG i;
ULONG Val;
BOOLEAN addneg = FALSE;
BOOLEAN Negative = 0;
PWCHAR String = InString->Buffer;
ULONG MaxLen = InString->Length / sizeof(WCHAR);
*Value = 0;
Str = String->Buffer;
*Value = 0;
for (i = 0; i < String->Length / sizeof(WCHAR); i++)
{
if (*Str == L'b')
{
Base = 2;
lenmin++;
}
else if (*Str == L'o')
{
Base = 8;
lenmin++;
}
else if (*Str == L'd')
{
Base = 10;
lenmin++;
}
else if (*Str == L'x')
{
Base = 16;
lenmin++;
}
else if (*Str == L'+')
{
lenmin++;
}
else if (*Str == L'-')
{
addneg = TRUE;
lenmin++;
}
else if ((*Str > L'1') && (Base == 2))
{
return STATUS_INVALID_PARAMETER;
}
else if (((*Str > L'7') || (*Str < L'0')) && (Base == 8))
{
return STATUS_INVALID_PARAMETER;
}
else if (((*Str > L'9') || (*Str < L'0')) && (Base == 10))
{
return STATUS_INVALID_PARAMETER;
}
/*
else if ((((*Str > L'9') || (*Str < L'0')) ||
((towupper (*Str) > L'F') ||
(towupper (*Str) < L'A'))) && (Base == 16))
*/
else if ((*Str < '0' ||
(*Str > '9' && *Str < 'A') ||
(*Str > 'F' && *Str < 'a') ||
*Str > 'f') &&
(Base == 16))
{
return STATUS_INVALID_PARAMETER;
}
else
Str++;
}
if(*String == L'-')
{
Negative++;
String++;
}
else if(*String == L'+')
{
Negative = 0;
String++;
}
Str = String->Buffer + lenmin;
if(!Base)
{
if(*String == L'b')
{
Base = 2;
String++;
}
else if(*String == L'o')
{
Base = 8;
String++;
}
else if(*String == L'x')
{
Base = 16;
String++;
}
else
Base = 10;
}
if (Base == 0)
Base = 10;
while(*String && MaxLen)
{
short c = *String;;
String++;
MaxLen--;
while (iswxdigit (*Str) &&
(Val = iswdigit (*Str) ? *Str - L'0' : (iswlower (*Str)
? toupper (*Str) : *Str) - L'A' + 10) < Base)
{
*Value = *Value * Base + Val;
Str++;
}
if(c >= 'a' && c <= 'f')
c -= 'a' - 'A';
if (addneg == TRUE)
*Value *= -1;
/* validate chars for bases <= 10 */
if( Base <= 10 && (c < '0' || c > '9') )
return STATUS_INVALID_PARAMETER;
return STATUS_SUCCESS;
/* validate chars for base 16 */
else if( (c < '0' || c > '9') && (c < 'A' || c > 'F') )
return STATUS_INVALID_PARAMETER;
/* perhaps someday we'll validate additional bases */
if(c >= 'A' && c <= 'F')
*Value = *Value * Base + c - 'A' + 10;
else
*Value = *Value * Base + c - '0';
}
if(Negative)
*Value *= -1;
return STATUS_SUCCESS;
}