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wine/dlls/ntdll/rtlstr.c
Alexandre Julliard 5006040541 ntdll: Implement RtlCompareUnicodeStrings. 
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2016-05-03 15:14:20 +09:00

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/*
* Rtl string functions
*
* Copyright (C) 1996-1998 Marcus Meissner
* Copyright (C) 2000 Alexandre Julliard
* Copyright (C) 2003 Thomas Mertes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winnt.h"
#include "winternl.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#include "ntdll_misc.h"
WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
#define GUID_STRING_LENGTH 38
UINT NlsAnsiCodePage = 0;
BYTE NlsMbCodePageTag = 0;
BYTE NlsMbOemCodePageTag = 0;
static const union cptable *ansi_table;
static const union cptable *oem_table;
static const union cptable* unix_table; /* NULL if UTF8 */
/**************************************************************************
* __wine_init_codepages (NTDLL.@)
*
* Set the code page once kernel32 is loaded. Should be done differently.
*/
void CDECL __wine_init_codepages( const union cptable *ansi, const union cptable *oem,
const union cptable *ucp)
{
ansi_table = ansi;
oem_table = oem;
unix_table = ucp;
NlsAnsiCodePage = ansi->info.codepage;
}
int ntdll_umbstowcs(DWORD flags, const char* src, int srclen, WCHAR* dst, int dstlen)
{
#ifdef __APPLE__
/* work around broken Mac OS X filesystem that enforces decomposed Unicode */
if (!unix_table) flags |= MB_COMPOSITE;
#endif
return (unix_table) ?
wine_cp_mbstowcs( unix_table, flags, src, srclen, dst, dstlen ) :
wine_utf8_mbstowcs( flags, src, srclen, dst, dstlen );
}
int ntdll_wcstoumbs(DWORD flags, const WCHAR* src, int srclen, char* dst, int dstlen,
const char* defchar, int *used )
{
if (unix_table)
return wine_cp_wcstombs( unix_table, flags, src, srclen, dst, dstlen, defchar, used );
if (used) *used = 0; /* all chars are valid for UTF-8 */
return wine_utf8_wcstombs( flags, src, srclen, dst, dstlen );
}
/**************************************************************************
* RtlInitAnsiString (NTDLL.@)
*
* Initializes a buffered ansi string.
*
* RETURNS
* Nothing.
*
* NOTES
* Assigns source to target->Buffer. The length of source is assigned to
* target->Length and target->MaximumLength. If source is NULL the length
* of source is assumed to be 0.
*/
void WINAPI RtlInitAnsiString(
PANSI_STRING target, /* [I/O] Buffered ansi string to be initialized */
PCSZ source) /* [I] '\0' terminated string used to initialize target */
{
if ((target->Buffer = (PCHAR) source))
{
target->Length = strlen(source);
target->MaximumLength = target->Length + 1;
}
else target->Length = target->MaximumLength = 0;
}
/**************************************************************************
* RtlInitAnsiStringEx (NTDLL.@)
*
* Initializes a buffered ansi string.
*
* RETURNS
* An appropriate NTSTATUS value.
*
* NOTES
* Assigns source to target->Buffer. The length of source is assigned to
* target->Length and target->MaximumLength. If source is NULL the length
* of source is assumed to be 0.
*/
NTSTATUS WINAPI RtlInitAnsiStringEx(PANSI_STRING target, PCSZ source)
{
if (source)
{
unsigned int len = strlen(source);
if (len+1 > 0xffff)
return STATUS_NAME_TOO_LONG;
target->Buffer = (PCHAR) source;
target->Length = len;
target->MaximumLength = len + 1;
}
else
{
target->Buffer = NULL;
target->Length = 0;
target->MaximumLength = 0;
}
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlInitString (NTDLL.@)
*
* Initializes a buffered string.
*
* RETURNS
* Nothing.
*
* NOTES
* Assigns source to target->Buffer. The length of source is assigned to
* target->Length and target->MaximumLength. If source is NULL the length
* of source is assumed to be 0.
*/
void WINAPI RtlInitString(
PSTRING target, /* [I/O] Buffered string to be initialized */
PCSZ source) /* [I] '\0' terminated string used to initialize target */
{
RtlInitAnsiString( target, source );
}
/**************************************************************************
* RtlFreeAnsiString (NTDLL.@)
*/
void WINAPI RtlFreeAnsiString( PSTRING str )
{
if (str->Buffer)
{
RtlFreeHeap( GetProcessHeap(), 0, str->Buffer );
RtlZeroMemory( str, sizeof(*str) );
}
}
/**************************************************************************
* RtlFreeOemString (NTDLL.@)
*/
void WINAPI RtlFreeOemString( PSTRING str )
{
RtlFreeAnsiString( str );
}
/**************************************************************************
* RtlCopyString (NTDLL.@)
*/
void WINAPI RtlCopyString( STRING *dst, const STRING *src )
{
if (src)
{
unsigned int len = min( src->Length, dst->MaximumLength );
memcpy( dst->Buffer, src->Buffer, len );
dst->Length = len;
}
else dst->Length = 0;
}
/**************************************************************************
* RtlInitUnicodeString (NTDLL.@)
*
* Initializes a buffered unicode string.
*
* RETURNS
* Nothing.
*
* NOTES
* Assigns source to target->Buffer. The length of source is assigned to
* target->Length and target->MaximumLength. If source is NULL the length
* of source is assumed to be 0.
*/
void WINAPI RtlInitUnicodeString(
PUNICODE_STRING target, /* [I/O] Buffered unicode string to be initialized */
PCWSTR source) /* [I] '\0' terminated unicode string used to initialize target */
{
if ((target->Buffer = (PWSTR) source))
{
unsigned int length = strlenW(source) * sizeof(WCHAR);
if (length > 0xfffc)
length = 0xfffc;
target->Length = length;
target->MaximumLength = target->Length + sizeof(WCHAR);
}
else target->Length = target->MaximumLength = 0;
}
/**************************************************************************
* RtlInitUnicodeStringEx (NTDLL.@)
*
* Initializes a buffered unicode string.
*
* RETURNS
* Success: STATUS_SUCCESS. target is initialized.
* Failure: STATUS_NAME_TOO_LONG, if the source string is larger than 65532 bytes.
*
* NOTES
* Assigns source to target->Buffer. The length of source is assigned to
* target->Length and target->MaximumLength. If source is NULL the length
* of source is assumed to be 0.
*/
NTSTATUS WINAPI RtlInitUnicodeStringEx(
PUNICODE_STRING target, /* [I/O] Buffered unicode string to be initialized */
PCWSTR source) /* [I] '\0' terminated unicode string used to initialize target */
{
if (source != NULL) {
unsigned int len = strlenW(source) * sizeof(WCHAR);
if (len > 0xFFFC) {
return STATUS_NAME_TOO_LONG;
} else {
target->Length = len;
target->MaximumLength = len + sizeof(WCHAR);
target->Buffer = (PWSTR) source;
} /* if */
} else {
target->Length = 0;
target->MaximumLength = 0;
target->Buffer = NULL;
} /* if */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlCreateUnicodeString (NTDLL.@)
*
* Creates a UNICODE_STRING from a null-terminated Unicode string.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOLEAN WINAPI RtlCreateUnicodeString( PUNICODE_STRING target, LPCWSTR src )
{
int len = (strlenW(src) + 1) * sizeof(WCHAR);
if (!(target->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len ))) return FALSE;
memcpy( target->Buffer, src, len );
target->MaximumLength = len;
target->Length = len - sizeof(WCHAR);
return TRUE;
}
/**************************************************************************
* RtlCreateUnicodeStringFromAsciiz (NTDLL.@)
*
* Creates a UNICODE_STRING from a null-terminated Ascii string.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOLEAN WINAPI RtlCreateUnicodeStringFromAsciiz( PUNICODE_STRING target, LPCSTR src )
{
STRING ansi;
RtlInitAnsiString( &ansi, src );
return !RtlAnsiStringToUnicodeString( target, &ansi, TRUE );
}
/**************************************************************************
* RtlFreeUnicodeString (NTDLL.@)
*
* Frees a UNICODE_STRING created with RtlCreateUnicodeString() or
* RtlCreateUnicodeStringFromAsciiz().
*
* RETURNS
* nothing
*/
void WINAPI RtlFreeUnicodeString( PUNICODE_STRING str )
{
if (str->Buffer)
{
RtlFreeHeap( GetProcessHeap(), 0, str->Buffer );
RtlZeroMemory( str, sizeof(*str) );
}
}
/**************************************************************************
* RtlCopyUnicodeString (NTDLL.@)
*
* Copies from one UNICODE_STRING to another.
*
* RETURNS
* nothing
*/
void WINAPI RtlCopyUnicodeString( UNICODE_STRING *dst, const UNICODE_STRING *src )
{
if (src)
{
unsigned int len = min( src->Length, dst->MaximumLength );
memcpy( dst->Buffer, src->Buffer, len );
dst->Length = len;
/* append terminating '\0' if enough space */
if (len < dst->MaximumLength) dst->Buffer[len / sizeof(WCHAR)] = 0;
}
else dst->Length = 0;
}
/**************************************************************************
* RtlDuplicateUnicodeString (NTDLL.@)
*
* Duplicates a unicode string.
*
* RETURNS
* Success: STATUS_SUCCESS. destination contains the duplicated unicode string.
* Failure: STATUS_INVALID_PARAMETER, if one of the parameters is illegal.
* STATUS_NO_MEMORY, if the allocation fails.
*
* NOTES
* For add_nul there are several possible values:
* 0 = destination will not be '\0' terminated,
* 1 = destination will be '\0' terminated,
* 3 = like 1 but for an empty source string produce '\0' terminated empty
* Buffer instead of assigning NULL to the Buffer.
* Other add_nul values are invalid.
*/
NTSTATUS WINAPI RtlDuplicateUnicodeString(
int add_nul, /* [I] flag */
const UNICODE_STRING *source, /* [I] Unicode string to be duplicated */
UNICODE_STRING *destination) /* [O] destination for the duplicated unicode string */
{
if (source == NULL || destination == NULL ||
source->Length > source->MaximumLength ||
(source->Length == 0 && source->MaximumLength > 0 && source->Buffer == NULL) ||
add_nul == 2 || add_nul >= 4 || add_nul < 0) {
return STATUS_INVALID_PARAMETER;
} else {
if (source->Length == 0 && add_nul != 3) {
destination->Length = 0;
destination->MaximumLength = 0;
destination->Buffer = NULL;
} else {
unsigned int destination_max_len = source->Length;
if (add_nul) {
destination_max_len += sizeof(WCHAR);
} /* if */
destination->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, destination_max_len);
if (destination->Buffer == NULL) {
return STATUS_NO_MEMORY;
} else {
memcpy(destination->Buffer, source->Buffer, source->Length);
destination->Length = source->Length;
destination->MaximumLength = source->Length;
/* append terminating '\0' if enough space */
if (add_nul) {
destination->MaximumLength = destination_max_len;
destination->Buffer[destination->Length / sizeof(WCHAR)] = 0;
} /* if */
} /* if */
} /* if */
} /* if */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlEraseUnicodeString (NTDLL.@)
*
* Overwrites a UNICODE_STRING with zeros.
*
* RETURNS
* nothing
*/
void WINAPI RtlEraseUnicodeString( UNICODE_STRING *str )
{
if (str->Buffer)
{
memset( str->Buffer, 0, str->MaximumLength );
str->Length = 0;
}
}
/*
COMPARISON FUNCTIONS
*/
/******************************************************************************
* RtlCompareString (NTDLL.@)
*/
LONG WINAPI RtlCompareString( const STRING *s1, const STRING *s2, BOOLEAN CaseInsensitive )
{
unsigned int len;
LONG ret = 0;
LPCSTR p1, p2;
len = min(s1->Length, s2->Length);
p1 = s1->Buffer;
p2 = s2->Buffer;
if (CaseInsensitive)
{
while (!ret && len--) ret = RtlUpperChar(*p1++) - RtlUpperChar(*p2++);
}
else
{
while (!ret && len--) ret = *p1++ - *p2++;
}
if (!ret) ret = s1->Length - s2->Length;
return ret;
}
/******************************************************************************
* RtlCompareUnicodeStrings (NTDLL.@)
*/
LONG WINAPI RtlCompareUnicodeStrings( const WCHAR *s1, SIZE_T len1, const WCHAR *s2, SIZE_T len2,
BOOLEAN case_insensitive )
{
LONG ret = 0;
SIZE_T len = min( len1, len2 );
if (case_insensitive)
{
while (!ret && len--) ret = toupperW(*s1++) - toupperW(*s2++);
}
else
{
while (!ret && len--) ret = *s1++ - *s2++;
}
if (!ret) ret = len1 - len2;
return ret;
}
/******************************************************************************
* RtlCompareUnicodeString (NTDLL.@)
*/
LONG WINAPI RtlCompareUnicodeString( const UNICODE_STRING *s1, const UNICODE_STRING *s2,
BOOLEAN CaseInsensitive )
{
return RtlCompareUnicodeStrings( s1->Buffer, s1->Length / sizeof(WCHAR),
s2->Buffer, s2->Length / sizeof(WCHAR), CaseInsensitive );
}
/**************************************************************************
* RtlEqualString (NTDLL.@)
*
* Determine if two strings are equal.
*
* PARAMS
* s1 [I] Source string
* s2 [I] String to compare to s1
* CaseInsensitive [I] TRUE = Case insensitive, FALSE = Case sensitive
*
* RETURNS
* Non-zero if s1 is equal to s2, 0 otherwise.
*/
BOOLEAN WINAPI RtlEqualString( const STRING *s1, const STRING *s2, BOOLEAN CaseInsensitive )
{
if (s1->Length != s2->Length) return FALSE;
return !RtlCompareString( s1, s2, CaseInsensitive );
}
/**************************************************************************
* RtlEqualUnicodeString (NTDLL.@)
*
* Unicode version of RtlEqualString.
*/
BOOLEAN WINAPI RtlEqualUnicodeString( const UNICODE_STRING *s1, const UNICODE_STRING *s2,
BOOLEAN CaseInsensitive )
{
if (s1->Length != s2->Length) return FALSE;
return !RtlCompareUnicodeString( s1, s2, CaseInsensitive );
}
/**************************************************************************
* RtlPrefixString (NTDLL.@)
*
* Determine if one string is a prefix of another.
*
* PARAMS
* s1 [I] Prefix to look for in s2
* s2 [I] String that may contain s1 as a prefix
* ignore_case [I] TRUE = Case insensitive, FALSE = Case sensitive
*
* RETURNS
* TRUE if s2 contains s1 as a prefix, FALSE otherwise.
*/
BOOLEAN WINAPI RtlPrefixString( const STRING *s1, const STRING *s2, BOOLEAN ignore_case )
{
unsigned int i;
if (s1->Length > s2->Length) return FALSE;
if (ignore_case)
{
for (i = 0; i < s1->Length; i++)
if (RtlUpperChar(s1->Buffer[i]) != RtlUpperChar(s2->Buffer[i])) return FALSE;
}
else
{
for (i = 0; i < s1->Length; i++)
if (s1->Buffer[i] != s2->Buffer[i]) return FALSE;
}
return TRUE;
}
/**************************************************************************
* RtlPrefixUnicodeString (NTDLL.@)
*
* Unicode version of RtlPrefixString.
*/
BOOLEAN WINAPI RtlPrefixUnicodeString( const UNICODE_STRING *s1,
const UNICODE_STRING *s2,
BOOLEAN ignore_case )
{
unsigned int i;
if (s1->Length > s2->Length) return FALSE;
if (ignore_case)
{
for (i = 0; i < s1->Length / sizeof(WCHAR); i++)
if (toupperW(s1->Buffer[i]) != toupperW(s2->Buffer[i])) return FALSE;
}
else
{
for (i = 0; i < s1->Length / sizeof(WCHAR); i++)
if (s1->Buffer[i] != s2->Buffer[i]) return FALSE;
}
return TRUE;
}
/**************************************************************************
* RtlEqualComputerName (NTDLL.@)
*
* Determine if two computer names are the same.
*
* PARAMS
* left [I] First computer name
* right [I] Second computer name
*
* RETURNS
* 0 if the names are equal, non-zero otherwise.
*
* NOTES
* The comparison is case insensitive.
*/
NTSTATUS WINAPI RtlEqualComputerName(const UNICODE_STRING *left,
const UNICODE_STRING *right)
{
NTSTATUS ret;
STRING upLeft, upRight;
if (!(ret = RtlUpcaseUnicodeStringToOemString( &upLeft, left, TRUE )))
{
if (!(ret = RtlUpcaseUnicodeStringToOemString( &upRight, right, TRUE )))
{
ret = RtlEqualString( &upLeft, &upRight, FALSE );
RtlFreeOemString( &upRight );
}
RtlFreeOemString( &upLeft );
}
return ret;
}
/**************************************************************************
* RtlEqualDomainName (NTDLL.@)
*
* Determine if two domain names are the same.
*
* PARAMS
* left [I] First domain name
* right [I] Second domain name
*
* RETURNS
* 0 if the names are equal, non-zero otherwise.
*
* NOTES
* The comparison is case insensitive.
*/
NTSTATUS WINAPI RtlEqualDomainName(const UNICODE_STRING *left,
const UNICODE_STRING *right)
{
return RtlEqualComputerName(left, right);
}
/**************************************************************************
* RtlAnsiCharToUnicodeChar (NTDLL.@)
*
* Converts the first ansi character to a unicode character.
*
* PARAMS
* ansi [I/O] Pointer to the ansi string.
*
* RETURNS
* Unicode representation of the first character in the ansi string.
*
* NOTES
* Upon successful completion, the char pointer ansi points to is
* incremented by the size of the character.
*/
WCHAR WINAPI RtlAnsiCharToUnicodeChar(LPSTR *ansi)
{
WCHAR str;
DWORD charSize = sizeof(CHAR);
if (wine_is_dbcs_leadbyte(ansi_table, **ansi))
charSize++;
RtlMultiByteToUnicodeN(&str, sizeof(WCHAR), NULL, *ansi, charSize);
*ansi += charSize;
return str;
}
/*
COPY BETWEEN ANSI_STRING or UNICODE_STRING
there is no parameter checking, it just crashes
*/
/**************************************************************************
* RtlAnsiStringToUnicodeString (NTDLL.@)
*
* Converts an ansi string to a unicode string.
*
* RETURNS
* Success: STATUS_SUCCESS. uni contains the converted string
* Failure: STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and ansi is too small.
* STATUS_NO_MEMORY, if doalloc is TRUE and the allocation fails.
* STATUS_INVALID_PARAMETER_2, if the unicode string would be larger than 65535.
*
* NOTES
* This function always writes a terminating '\0'.
*/
NTSTATUS WINAPI RtlAnsiStringToUnicodeString(
PUNICODE_STRING uni, /* [I/O] Destination for the unicode string */
PCANSI_STRING ansi, /* [I] Ansi string to be converted */
BOOLEAN doalloc) /* [I] TRUE=Allocate new buffer for uni, FALSE=Use existing buffer */
{
DWORD total = RtlAnsiStringToUnicodeSize( ansi );
if (total > 0xffff) return STATUS_INVALID_PARAMETER_2;
uni->Length = total - sizeof(WCHAR);
if (doalloc)
{
uni->MaximumLength = total;
if (!(uni->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, total )))
return STATUS_NO_MEMORY;
}
else if (total > uni->MaximumLength) return STATUS_BUFFER_OVERFLOW;
RtlMultiByteToUnicodeN( uni->Buffer, uni->Length, NULL, ansi->Buffer, ansi->Length );
uni->Buffer[uni->Length / sizeof(WCHAR)] = 0;
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlOemStringToUnicodeString (NTDLL.@)
*
* Converts an oem string to a unicode string.
*
* RETURNS
* Success: STATUS_SUCCESS. uni contains the converted string
* Failure: STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and oem is too small.
* STATUS_NO_MEMORY, if doalloc is TRUE and the allocation fails.
* STATUS_INVALID_PARAMETER_2, if the unicode string would be larger than 65535.
*
* NOTES
* This function always writes a terminating '\0'.
*/
NTSTATUS WINAPI RtlOemStringToUnicodeString(
UNICODE_STRING *uni, /* [I/O] Destination for the unicode string */
const STRING *oem, /* [I] Oem string to be converted */
BOOLEAN doalloc) /* [I] TRUE=Allocate new buffer for uni, FALSE=Use existing buffer */
{
DWORD total = RtlOemStringToUnicodeSize( oem );
if (total > 0xffff) return STATUS_INVALID_PARAMETER_2;
uni->Length = total - sizeof(WCHAR);
if (doalloc)
{
uni->MaximumLength = total;
if (!(uni->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, total )))
return STATUS_NO_MEMORY;
}
else if (total > uni->MaximumLength) return STATUS_BUFFER_OVERFLOW;
RtlOemToUnicodeN( uni->Buffer, uni->Length, NULL, oem->Buffer, oem->Length );
uni->Buffer[uni->Length / sizeof(WCHAR)] = 0;
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlUnicodeStringToAnsiString (NTDLL.@)
*
* Converts a unicode string to an ansi string.
*
* RETURNS
* Success: STATUS_SUCCESS. ansi contains the converted string
* Failure: STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and ansi is too small.
* STATUS_NO_MEMORY, if doalloc is TRUE and the allocation fails.
*
* NOTES
* This function always writes a terminating '\0'.
* It performs a partial copy if ansi is too small.
*/
NTSTATUS WINAPI RtlUnicodeStringToAnsiString(
STRING *ansi, /* [I/O] Destination for the ansi string */
const UNICODE_STRING *uni, /* [I] Unicode string to be converted */
BOOLEAN doalloc) /* [I] TRUE=Allocate new buffer for ansi, FALSE=Use existing buffer */
{
NTSTATUS ret = STATUS_SUCCESS;
DWORD len = RtlUnicodeStringToAnsiSize( uni );
ansi->Length = len - 1;
if (doalloc)
{
ansi->MaximumLength = len;
if (!(ansi->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len )))
return STATUS_NO_MEMORY;
}
else if (ansi->MaximumLength < len)
{
if (!ansi->MaximumLength) return STATUS_BUFFER_OVERFLOW;
ansi->Length = ansi->MaximumLength - 1;
ret = STATUS_BUFFER_OVERFLOW;
}
RtlUnicodeToMultiByteN( ansi->Buffer, ansi->Length, NULL, uni->Buffer, uni->Length );
ansi->Buffer[ansi->Length] = 0;
return ret;
}
/**************************************************************************
* RtlUnicodeStringToOemString (NTDLL.@)
*
* Converts a Rtl Unicode string to an OEM string.
*
* PARAMS
* oem [O] Destination for OEM string
* uni [I] Source Unicode string
* doalloc [I] TRUE=Allocate new buffer for oem,FALSE=Use existing buffer
*
* RETURNS
* Success: STATUS_SUCCESS. oem contains the converted string
* Failure: STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and oem is too small.
* STATUS_NO_MEMORY, if doalloc is TRUE and allocation fails.
*
* NOTES
* If doalloc is TRUE, the length allocated is uni->Length + 1.
* This function always '\0' terminates the string returned.
*/
NTSTATUS WINAPI RtlUnicodeStringToOemString( STRING *oem,
const UNICODE_STRING *uni,
BOOLEAN doalloc )
{
NTSTATUS ret = STATUS_SUCCESS;
DWORD len = RtlUnicodeStringToOemSize( uni );
oem->Length = len - 1;
if (doalloc)
{
oem->MaximumLength = len;
if (!(oem->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len )))
return STATUS_NO_MEMORY;
}
else if (oem->MaximumLength < len)
{
if (!oem->MaximumLength) return STATUS_BUFFER_OVERFLOW;
oem->Length = oem->MaximumLength - 1;
ret = STATUS_BUFFER_OVERFLOW;
}
RtlUnicodeToOemN( oem->Buffer, oem->Length, NULL, uni->Buffer, uni->Length );
oem->Buffer[oem->Length] = 0;
return ret;
}
/**************************************************************************
* RtlMultiByteToUnicodeN (NTDLL.@)
*
* Converts a multi-byte string to a Unicode string.
*
* RETURNS
* NTSTATUS code
*
* NOTES
* Performs a partial copy if dst is too small.
*/
NTSTATUS WINAPI RtlMultiByteToUnicodeN( LPWSTR dst, DWORD dstlen, LPDWORD reslen,
LPCSTR src, DWORD srclen )
{
int ret = wine_cp_mbstowcs( ansi_table, 0, src, srclen, dst, dstlen/sizeof(WCHAR) );
if (reslen)
*reslen = (ret >= 0) ? ret*sizeof(WCHAR) : dstlen; /* overflow -> we filled up to dstlen */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlOemToUnicodeN (NTDLL.@)
*
* Converts a multi-byte string in the OEM code page to a Unicode string.
*
* RETURNS
* NTSTATUS code
*/
NTSTATUS WINAPI RtlOemToUnicodeN( LPWSTR dst, DWORD dstlen, LPDWORD reslen,
LPCSTR src, DWORD srclen )
{
int ret = wine_cp_mbstowcs( oem_table, 0, src, srclen, dst, dstlen/sizeof(WCHAR) );
if (reslen)
*reslen = (ret >= 0) ? ret*sizeof(WCHAR) : dstlen; /* overflow -> we filled up to dstlen */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlUnicodeToMultiByteN (NTDLL.@)
*
* Converts a Unicode string to a multi-byte string in the ANSI code page.
*
* RETURNS
* NTSTATUS code
*/
NTSTATUS WINAPI RtlUnicodeToMultiByteN( LPSTR dst, DWORD dstlen, LPDWORD reslen,
LPCWSTR src, DWORD srclen )
{
int ret = wine_cp_wcstombs( ansi_table, 0, src, srclen / sizeof(WCHAR),
dst, dstlen, NULL, NULL );
if (reslen)
*reslen = (ret >= 0) ? ret : dstlen; /* overflow -> we filled up to dstlen */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlUnicodeToOemN (NTDLL.@)
*
* Converts a Unicode string to a multi-byte string in the OEM code page.
*
* RETURNS
* NTSTATUS code
*/
NTSTATUS WINAPI RtlUnicodeToOemN( LPSTR dst, DWORD dstlen, LPDWORD reslen,
LPCWSTR src, DWORD srclen )
{
int ret = wine_cp_wcstombs( oem_table, 0, src, srclen / sizeof(WCHAR),
dst, dstlen, NULL, NULL );
if (reslen)
*reslen = (ret >= 0) ? ret : dstlen; /* overflow -> we filled up to dstlen */
return STATUS_SUCCESS;
}
/*
CASE CONVERSIONS
*/
/**************************************************************************
* RtlUpperChar (NTDLL.@)
*
* Converts an Ascii character to uppercase.
*
* PARAMS
* ch [I] Character to convert
*
* RETURNS
* The uppercase character value.
*
* NOTES
* For the input characters from 'a' .. 'z' it returns 'A' .. 'Z'.
* All other input characters are returned unchanged. The locale and
* multibyte characters are not taken into account (as native DLL).
*/
CHAR WINAPI RtlUpperChar( CHAR ch )
{
if (ch >= 'a' && ch <= 'z') {
return ch - 'a' + 'A';
} else {
return ch;
} /* if */
}
/**************************************************************************
* RtlUpperString (NTDLL.@)
*
* Converts an Ascii string to uppercase.
*
* PARAMS
* dst [O] Destination for converted string
* src [I] Source string to convert
*
* RETURNS
* Nothing.
*
* NOTES
* For the src characters from 'a' .. 'z' it assigns 'A' .. 'Z' to dst.
* All other src characters are copied unchanged to dst. The locale and
* multibyte characters are not taken into account (as native DLL).
* The number of character copied is the minimum of src->Length and
* the dst->MaximumLength.
*/
void WINAPI RtlUpperString( STRING *dst, const STRING *src )
{
unsigned int i, len = min(src->Length, dst->MaximumLength);
for (i = 0; i < len; i++) dst->Buffer[i] = RtlUpperChar(src->Buffer[i]);
dst->Length = len;
}
/**************************************************************************
* RtlUpcaseUnicodeChar (NTDLL.@)
*
* Converts a Unicode character to uppercase.
*
* PARAMS
* wch [I] Character to convert
*
* RETURNS
* The uppercase character value.
*/
WCHAR WINAPI RtlUpcaseUnicodeChar( WCHAR wch )
{
return toupperW(wch);
}
/**************************************************************************
* RtlDowncaseUnicodeChar (NTDLL.@)
*
* Converts a Unicode character to lowercase.
*
* PARAMS
* wch [I] Character to convert
*
* RETURNS
* The lowercase character value.
*/
WCHAR WINAPI RtlDowncaseUnicodeChar(WCHAR wch)
{
return tolowerW(wch);
}
/**************************************************************************
* RtlUpcaseUnicodeString (NTDLL.@)
*
* Converts a Unicode string to uppercase.
*
* PARAMS
* dest [O] Destination for converted string
* src [I] Source string to convert
* doalloc [I] TRUE=Allocate a buffer for dest if it doesn't have one
*
* RETURNS
* Success: STATUS_SUCCESS. dest contains the converted string.
* Failure: STATUS_NO_MEMORY, if doalloc is TRUE and memory allocation fails, or
* STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and dest is too small.
*
* NOTES
* dest is never '\0' terminated because it may be equal to src, and src
* might not be '\0' terminated. dest->Length is only set upon success.
*/
NTSTATUS WINAPI RtlUpcaseUnicodeString( UNICODE_STRING *dest,
const UNICODE_STRING *src,
BOOLEAN doalloc)
{
DWORD i, len = src->Length;
if (doalloc)
{
dest->MaximumLength = len;
if (!(dest->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len )))
return STATUS_NO_MEMORY;
}
else if (len > dest->MaximumLength) return STATUS_BUFFER_OVERFLOW;
for (i = 0; i < len/sizeof(WCHAR); i++) dest->Buffer[i] = toupperW(src->Buffer[i]);
dest->Length = len;
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlDowncaseUnicodeString (NTDLL.@)
*
* Converts a Unicode string to lowercase.
*
* PARAMS
* dest [O] Destination for converted string
* src [I] Source string to convert
* doalloc [I] TRUE=Allocate a buffer for dest if it doesn't have one
*
* RETURNS
* Success: STATUS_SUCCESS. dest contains the converted string.
* Failure: STATUS_NO_MEMORY, if doalloc is TRUE and memory allocation fails, or
* STATUS_BUFFER_OVERFLOW, if doalloc is FALSE and dest is too small.
*
* NOTES
* dest is never '\0' terminated because it may be equal to src, and src
* might not be '\0' terminated. dest->Length is only set upon success.
*/
NTSTATUS WINAPI RtlDowncaseUnicodeString(
UNICODE_STRING *dest,
const UNICODE_STRING *src,
BOOLEAN doalloc)
{
DWORD i;
DWORD len = src->Length;
if (doalloc) {
dest->MaximumLength = len;
if (!(dest->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len ))) {
return STATUS_NO_MEMORY;
} /* if */
} else if (len > dest->MaximumLength) {
return STATUS_BUFFER_OVERFLOW;
} /* if */
for (i = 0; i < len/sizeof(WCHAR); i++) {
dest->Buffer[i] = tolowerW(src->Buffer[i]);
} /* for */
dest->Length = len;
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlUpcaseUnicodeStringToAnsiString (NTDLL.@)
*
* Converts a Unicode string to the equivalent ANSI upper-case representation.
*
* RETURNS
* NTSTATUS code
*
* NOTES
* writes terminating 0
*/
NTSTATUS WINAPI RtlUpcaseUnicodeStringToAnsiString( STRING *dst,
const UNICODE_STRING *src,
BOOLEAN doalloc )
{
NTSTATUS ret;
UNICODE_STRING upcase;
if (!(ret = RtlUpcaseUnicodeString( &upcase, src, TRUE )))
{
ret = RtlUnicodeStringToAnsiString( dst, &upcase, doalloc );
RtlFreeUnicodeString( &upcase );
}
return ret;
}
/**************************************************************************
* RtlUpcaseUnicodeStringToOemString (NTDLL.@)
*
* Converts a UNICODE_STRING to the equivalent OEM upper-case representation
* stored in STRING format.
*
* RETURNS
* NTSTATUS code
*
* NOTES
* writes terminating 0
*/
NTSTATUS WINAPI RtlUpcaseUnicodeStringToOemString( STRING *dst,
const UNICODE_STRING *src,
BOOLEAN doalloc )
{
NTSTATUS ret;
UNICODE_STRING upcase;
if (!(ret = RtlUpcaseUnicodeString( &upcase, src, TRUE )))
{
ret = RtlUnicodeStringToOemString( dst, &upcase, doalloc );
RtlFreeUnicodeString( &upcase );
}
return ret;
}
/**************************************************************************
* RtlUpcaseUnicodeStringToCountedOemString (NTDLL.@)
*
* Converts a UNICODE_STRING to the equivalent OEM upper-case representation
* stored in STRING format.
*
* RETURNS
* NTSTATUS code
*
* NOTES
* Same as RtlUpcaseUnicodeStringToOemString but doesn't write terminating null
*/
NTSTATUS WINAPI RtlUpcaseUnicodeStringToCountedOemString( STRING *oem,
const UNICODE_STRING *uni,
BOOLEAN doalloc )
{
NTSTATUS ret;
UNICODE_STRING upcase;
WCHAR tmp[32];
upcase.Buffer = tmp;
upcase.MaximumLength = sizeof(tmp);
ret = RtlUpcaseUnicodeString( &upcase, uni, FALSE );
if (ret == STATUS_BUFFER_OVERFLOW) ret = RtlUpcaseUnicodeString( &upcase, uni, TRUE );
if (!ret)
{
DWORD len = RtlUnicodeStringToOemSize( &upcase ) - 1;
oem->Length = len;
if (doalloc)
{
oem->MaximumLength = len;
if (!(oem->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, len )))
{
ret = STATUS_NO_MEMORY;
goto done;
}
}
else if (oem->MaximumLength < len)
{
ret = STATUS_BUFFER_OVERFLOW;
oem->Length = oem->MaximumLength;
if (!oem->MaximumLength) goto done;
}
RtlUnicodeToOemN( oem->Buffer, oem->Length, NULL, upcase.Buffer, upcase.Length );
done:
if (upcase.Buffer != tmp) RtlFreeUnicodeString( &upcase );
}
return ret;
}
/**************************************************************************
* RtlUpcaseUnicodeToMultiByteN (NTDLL.@)
*
* Converts a Unicode string to the equivalent ANSI upper-case representation.
*
* RETURNS
* NTSTATUS code
*/
NTSTATUS WINAPI RtlUpcaseUnicodeToMultiByteN( LPSTR dst, DWORD dstlen, LPDWORD reslen,
LPCWSTR src, DWORD srclen )
{
NTSTATUS ret;
LPWSTR upcase;
DWORD i;
if (!(upcase = RtlAllocateHeap( GetProcessHeap(), 0, srclen ))) return STATUS_NO_MEMORY;
for (i = 0; i < srclen/sizeof(WCHAR); i++) upcase[i] = toupperW(src[i]);
ret = RtlUnicodeToMultiByteN( dst, dstlen, reslen, upcase, srclen );
RtlFreeHeap( GetProcessHeap(), 0, upcase );
return ret;
}
/**************************************************************************
* RtlUpcaseUnicodeToOemN (NTDLL.@)
*
* Converts a Unicode string to the equivalent OEM upper-case representation.
*
* RETURNS
* NTSTATUS code
*/
NTSTATUS WINAPI RtlUpcaseUnicodeToOemN( LPSTR dst, DWORD dstlen, LPDWORD reslen,
LPCWSTR src, DWORD srclen )
{
NTSTATUS ret;
LPWSTR upcase;
DWORD i;
if (!(upcase = RtlAllocateHeap( GetProcessHeap(), 0, srclen ))) return STATUS_NO_MEMORY;
for (i = 0; i < srclen/sizeof(WCHAR); i++) upcase[i] = toupperW(src[i]);
ret = RtlUnicodeToOemN( dst, dstlen, reslen, upcase, srclen );
RtlFreeHeap( GetProcessHeap(), 0, upcase );
return ret;
}
/*
STRING SIZE
*/
/**************************************************************************
* RtlOemStringToUnicodeSize (NTDLL.@)
* RtlxOemStringToUnicodeSize (NTDLL.@)
*
* Calculate the size in bytes necessary for the Unicode conversion of str,
* including the terminating '\0'.
*
* PARAMS
* str [I] String to calculate the size of
*
* RETURNS
* The calculated size.
*/
UINT WINAPI RtlOemStringToUnicodeSize( const STRING *str )
{
int ret = wine_cp_mbstowcs( oem_table, 0, str->Buffer, str->Length, NULL, 0 );
return (ret + 1) * sizeof(WCHAR);
}
/**************************************************************************
* RtlAnsiStringToUnicodeSize (NTDLL.@)
* RtlxAnsiStringToUnicodeSize (NTDLL.@)
*
* Calculate the size in bytes necessary for the Unicode conversion of str,
* including the terminating '\0'.
*
* PARAMS
* str [I] String to calculate the size of
*
* RETURNS
* The calculated size.
*/
DWORD WINAPI RtlAnsiStringToUnicodeSize( const STRING *str )
{
DWORD ret;
RtlMultiByteToUnicodeSize( &ret, str->Buffer, str->Length );
return ret + sizeof(WCHAR);
}
/**************************************************************************
* RtlMultiByteToUnicodeSize (NTDLL.@)
*
* Compute the size in bytes necessary for the Unicode conversion of str,
* without the terminating '\0'.
*
* PARAMS
* size [O] Destination for size
* str [I] String to calculate the size of
* len [I] Length of str
*
* RETURNS
* STATUS_SUCCESS.
*/
NTSTATUS WINAPI RtlMultiByteToUnicodeSize( DWORD *size, LPCSTR str, UINT len )
{
*size = wine_cp_mbstowcs( ansi_table, 0, str, len, NULL, 0 ) * sizeof(WCHAR);
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlUnicodeToMultiByteSize (NTDLL.@)
*
* Calculate the size in bytes necessary for the multibyte conversion of str,
* without the terminating '\0'.
*
* PARAMS
* size [O] Destination for size
* str [I] String to calculate the size of
* len [I] Length of str
*
* RETURNS
* STATUS_SUCCESS.
*/
NTSTATUS WINAPI RtlUnicodeToMultiByteSize( PULONG size, LPCWSTR str, ULONG len )
{
*size = wine_cp_wcstombs( ansi_table, 0, str, len / sizeof(WCHAR), NULL, 0, NULL, NULL );
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlUnicodeStringToAnsiSize (NTDLL.@)
* RtlxUnicodeStringToAnsiSize (NTDLL.@)
*
* Calculate the size in bytes necessary for the Ansi conversion of str,
* including the terminating '\0'.
*
* PARAMS
* str [I] String to calculate the size of
*
* RETURNS
* The calculated size.
*/
DWORD WINAPI RtlUnicodeStringToAnsiSize( const UNICODE_STRING *str )
{
DWORD ret;
RtlUnicodeToMultiByteSize( &ret, str->Buffer, str->Length );
return ret + 1;
}
/**************************************************************************
* RtlUnicodeStringToOemSize (NTDLL.@)
* RtlxUnicodeStringToOemSize (NTDLL.@)
*
* Calculate the size in bytes necessary for the OEM conversion of str,
* including the terminating '\0'.
*
* PARAMS
* str [I] String to calculate the size of
*
* RETURNS
* The calculated size.
*/
DWORD WINAPI RtlUnicodeStringToOemSize( const UNICODE_STRING *str )
{
return wine_cp_wcstombs( oem_table, 0, str->Buffer, str->Length / sizeof(WCHAR),
NULL, 0, NULL, NULL ) + 1;
}
/**************************************************************************
* RtlAppendAsciizToString (NTDLL.@)
*
* Concatenates a buffered character string and a '\0' terminated character
* string
*
* RETURNS
* Success: STATUS_SUCCESS. src is appended to dest.
* Failure: STATUS_BUFFER_TOO_SMALL, if the buffer of dest is too small
* to hold the concatenated string.
*
* NOTES
* if src is NULL dest is unchanged.
* dest is never '\0' terminated.
*/
NTSTATUS WINAPI RtlAppendAsciizToString(
STRING *dest, /* [I/O] Buffered character string to which src is concatenated */
LPCSTR src) /* [I] '\0' terminated character string to be concatenated */
{
if (src != NULL) {
unsigned int src_len = strlen(src);
unsigned int dest_len = src_len + dest->Length;
if (dest_len > dest->MaximumLength) return STATUS_BUFFER_TOO_SMALL;
memcpy(dest->Buffer + dest->Length, src, src_len);
dest->Length = dest_len;
} /* if */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlAppendStringToString (NTDLL.@)
*
* Concatenates two buffered character strings
*
* RETURNS
* Success: STATUS_SUCCESS. src is appended to dest.
* Failure: STATUS_BUFFER_TOO_SMALL, if the buffer of dest is too small
* to hold the concatenated string.
*
* NOTES
* if src->length is zero dest is unchanged.
* dest is never '\0' terminated.
*/
NTSTATUS WINAPI RtlAppendStringToString(
STRING *dest, /* [I/O] Buffered character string to which src is concatenated */
const STRING *src) /* [I] Buffered character string to be concatenated */
{
if (src->Length != 0) {
unsigned int dest_len = src->Length + dest->Length;
if (dest_len > dest->MaximumLength) return STATUS_BUFFER_TOO_SMALL;
memcpy(dest->Buffer + dest->Length, src->Buffer, src->Length);
dest->Length = dest_len;
} /* if */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlAppendUnicodeToString (NTDLL.@)
*
* Concatenates a buffered unicode string and a '\0' terminated unicode
* string
*
* RETURNS
* Success: STATUS_SUCCESS. src is appended to dest.
* Failure: STATUS_BUFFER_TOO_SMALL, if the buffer of dest is too small
* to hold the concatenated string.
*
* NOTES
* if src is NULL dest is unchanged.
* dest is '\0' terminated when the MaximumLength allows it.
* When dest fits exactly in MaximumLength characters the '\0' is omitted.
*
* DIFFERENCES
* Does not write in the src->Buffer beyond MaximumLength when
* MaximumLength is odd as the native function does.
*/
NTSTATUS WINAPI RtlAppendUnicodeToString(
UNICODE_STRING *dest, /* [I/O] Buffered unicode string to which src is concatenated */
LPCWSTR src) /* [I] '\0' terminated unicode string to be concatenated */
{
if (src != NULL) {
unsigned int src_len = strlenW(src) * sizeof(WCHAR);
unsigned int dest_len = src_len + dest->Length;
if (dest_len > dest->MaximumLength) return STATUS_BUFFER_TOO_SMALL;
memcpy(dest->Buffer + dest->Length/sizeof(WCHAR), src, src_len);
dest->Length = dest_len;
/* append terminating '\0' if enough space */
if (dest_len + sizeof(WCHAR) <= dest->MaximumLength) {
dest->Buffer[dest_len / sizeof(WCHAR)] = 0;
} /* if */
} /* if */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlAppendUnicodeStringToString (NTDLL.@)
*
* Concatenates two buffered unicode strings
*
* RETURNS
* Success: STATUS_SUCCESS. src is appended to dest.
* Failure: STATUS_BUFFER_TOO_SMALL, if the buffer of dest is too small
* to hold the concatenated string.
*
* NOTES
* if src->length is zero dest is unchanged.
* dest is '\0' terminated when the MaximumLength allows it.
* When dest fits exactly in MaximumLength characters the '\0' is omitted.
*
* DIFFERENCES
* Does not write in the src->Buffer beyond MaximumLength when
* MaximumLength is odd as the native function does.
*/
NTSTATUS WINAPI RtlAppendUnicodeStringToString(
UNICODE_STRING *dest, /* [I/O] Buffered unicode string to which src is concatenated */
const UNICODE_STRING *src) /* [I] Buffered unicode string to be concatenated */
{
if (src->Length != 0) {
unsigned int dest_len = src->Length + dest->Length;
if (dest_len > dest->MaximumLength) return STATUS_BUFFER_TOO_SMALL;
memcpy(dest->Buffer + dest->Length/sizeof(WCHAR), src->Buffer, src->Length);
dest->Length = dest_len;
/* append terminating '\0' if enough space */
if (dest_len + sizeof(WCHAR) <= dest->MaximumLength) {
dest->Buffer[dest_len / sizeof(WCHAR)] = 0;
} /* if */
} /* if */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlFindCharInUnicodeString (NTDLL.@)
*
* Searches for one of several unicode characters in a unicode string.
*
* RETURNS
* Success: STATUS_SUCCESS. pos contains the position after the character found.
* Failure: STATUS_NOT_FOUND, if none of the search_chars are in main_str.
*/
NTSTATUS WINAPI RtlFindCharInUnicodeString(
int flags, /* [I] Flags */
const UNICODE_STRING *main_str, /* [I] Unicode string in which one or more characters are searched */
const UNICODE_STRING *search_chars, /* [I] Unicode string which contains the characters to search for */
USHORT *pos) /* [O] Position of the first character found + 2 */
{
unsigned int main_idx, search_idx;
switch (flags) {
case 0:
for (main_idx = 0; main_idx < main_str->Length / sizeof(WCHAR); main_idx++) {
for (search_idx = 0; search_idx < search_chars->Length / sizeof(WCHAR); search_idx++) {
if (main_str->Buffer[main_idx] == search_chars->Buffer[search_idx]) {
*pos = (main_idx + 1) * sizeof(WCHAR);
return STATUS_SUCCESS;
}
}
}
*pos = 0;
return STATUS_NOT_FOUND;
case 1:
main_idx = main_str->Length / sizeof(WCHAR);
while (main_idx-- > 0) {
for (search_idx = 0; search_idx < search_chars->Length / sizeof(WCHAR); search_idx++) {
if (main_str->Buffer[main_idx] == search_chars->Buffer[search_idx]) {
*pos = main_idx * sizeof(WCHAR);
return STATUS_SUCCESS;
}
}
}
*pos = 0;
return STATUS_NOT_FOUND;
case 2:
for (main_idx = 0; main_idx < main_str->Length / sizeof(WCHAR); main_idx++) {
search_idx = 0;
while (search_idx < search_chars->Length / sizeof(WCHAR) &&
main_str->Buffer[main_idx] != search_chars->Buffer[search_idx]) {
search_idx++;
}
if (search_idx >= search_chars->Length / sizeof(WCHAR)) {
*pos = (main_idx + 1) * sizeof(WCHAR);
return STATUS_SUCCESS;
}
}
*pos = 0;
return STATUS_NOT_FOUND;
case 3:
main_idx = main_str->Length / sizeof(WCHAR);
while (main_idx-- > 0) {
search_idx = 0;
while (search_idx < search_chars->Length / sizeof(WCHAR) &&
main_str->Buffer[main_idx] != search_chars->Buffer[search_idx]) {
search_idx++;
}
if (search_idx >= search_chars->Length / sizeof(WCHAR)) {
*pos = main_idx * sizeof(WCHAR);
return STATUS_SUCCESS;
}
}
*pos = 0;
return STATUS_NOT_FOUND;
} /* switch */
return STATUS_NOT_FOUND;
}
/*
MISC
*/
/**************************************************************************
* RtlIsTextUnicode (NTDLL.@)
*
* Attempt to guess whether a text buffer is Unicode.
*
* PARAMS
* buf [I] Text buffer to test
* len [I] Length of buf
* pf [O] Destination for test results
*
* RETURNS
* TRUE if the buffer is likely Unicode, FALSE otherwise.
*
* FIXME
* Should implement more tests.
*/
BOOLEAN WINAPI RtlIsTextUnicode( LPCVOID buf, INT len, INT *pf )
{
static const WCHAR std_control_chars[] = {'\r','\n','\t',' ',0x3000,0};
static const WCHAR byterev_control_chars[] = {0x0d00,0x0a00,0x0900,0x2000,0};
const WCHAR *s = buf;
int i;
unsigned int flags = ~0U, out_flags = 0;
if (len < sizeof(WCHAR))
{
/* FIXME: MSDN documents IS_TEXT_UNICODE_BUFFER_TOO_SMALL but there is no such thing... */
if (pf) *pf = 0;
return FALSE;
}
if (pf)
flags = *pf;
/*
* Apply various tests to the text string. According to the
* docs, each test "passed" sets the corresponding flag in
* the output flags. But some of the tests are mutually
* exclusive, so I don't see how you could pass all tests ...
*/
/* Check for an odd length ... pass if even. */
if (len & 1) out_flags |= IS_TEXT_UNICODE_ODD_LENGTH;
if (((const char *)buf)[len - 1] == 0)
len--; /* Windows seems to do something like that to avoid e.g. false IS_TEXT_UNICODE_NULL_BYTES */
len /= sizeof(WCHAR);
/* Windows only checks the first 256 characters */
if (len > 256) len = 256;
/* Check for the special byte order unicode marks. */
if (*s == 0xFEFF) out_flags |= IS_TEXT_UNICODE_SIGNATURE;
if (*s == 0xFFFE) out_flags |= IS_TEXT_UNICODE_REVERSE_SIGNATURE;
/* apply some statistical analysis */
if (flags & IS_TEXT_UNICODE_STATISTICS)
{
int stats = 0;
/* FIXME: checks only for ASCII characters in the unicode stream */
for (i = 0; i < len; i++)
{
if (s[i] <= 255) stats++;
}
if (stats > len / 2)
out_flags |= IS_TEXT_UNICODE_STATISTICS;
}
/* Check for unicode NULL chars */
if (flags & IS_TEXT_UNICODE_NULL_BYTES)
{
for (i = 0; i < len; i++)
{
if (!(s[i] & 0xff) || !(s[i] >> 8))
{
out_flags |= IS_TEXT_UNICODE_NULL_BYTES;
break;
}
}
}
if (flags & IS_TEXT_UNICODE_CONTROLS)
{
for (i = 0; i < len; i++)
{
if (strchrW(std_control_chars, s[i]))
{
out_flags |= IS_TEXT_UNICODE_CONTROLS;
break;
}
}
}
if (flags & IS_TEXT_UNICODE_REVERSE_CONTROLS)
{
for (i = 0; i < len; i++)
{
if (strchrW(byterev_control_chars, s[i]))
{
out_flags |= IS_TEXT_UNICODE_REVERSE_CONTROLS;
break;
}
}
}
if (pf)
{
out_flags &= *pf;
*pf = out_flags;
}
/* check for flags that indicate it's definitely not valid Unicode */
if (out_flags & (IS_TEXT_UNICODE_REVERSE_MASK | IS_TEXT_UNICODE_NOT_UNICODE_MASK)) return FALSE;
/* now check for invalid ASCII, and assume Unicode if so */
if (out_flags & IS_TEXT_UNICODE_NOT_ASCII_MASK) return TRUE;
/* now check for Unicode flags */
if (out_flags & IS_TEXT_UNICODE_UNICODE_MASK) return TRUE;
/* no flags set */
return FALSE;
}
/**************************************************************************
* RtlCharToInteger (NTDLL.@)
*
* Converts a character string into its integer equivalent.
*
* RETURNS
* Success: STATUS_SUCCESS. value contains the converted number
* Failure: STATUS_INVALID_PARAMETER, if base is not 0, 2, 8, 10 or 16.
* STATUS_ACCESS_VIOLATION, if value is NULL.
*
* NOTES
* For base 0 it uses 10 as base and the string should be in the format
* "{whitespace} [+|-] [0[x|o|b]] {digits}".
* For other bases the string should be in the format
* "{whitespace} [+|-] {digits}".
* No check is made for value overflow, only the lower 32 bits are assigned.
* If str is NULL it crashes, as the native function does.
*
* DIFFERENCES
* This function does not read garbage behind '\0' as the native version does.
*/
NTSTATUS WINAPI RtlCharToInteger(
PCSZ str, /* [I] '\0' terminated single-byte string containing a number */
ULONG base, /* [I] Number base for conversion (allowed 0, 2, 8, 10 or 16) */
ULONG *value) /* [O] Destination for the converted value */
{
CHAR chCurrent;
int digit;
ULONG RunningTotal = 0;
BOOL bMinus = FALSE;
while (*str != '\0' && *str <= ' ') {
str++;
} /* while */
if (*str == '+') {
str++;
} else if (*str == '-') {
bMinus = TRUE;
str++;
} /* if */
if (base == 0) {
base = 10;
if (str[0] == '0') {
if (str[1] == 'b') {
str += 2;
base = 2;
} else if (str[1] == 'o') {
str += 2;
base = 8;
} else if (str[1] == 'x') {
str += 2;
base = 16;
} /* if */
} /* if */
} else if (base != 2 && base != 8 && base != 10 && base != 16) {
return STATUS_INVALID_PARAMETER;
} /* if */
if (value == NULL) {
return STATUS_ACCESS_VIOLATION;
} /* if */
while (*str != '\0') {
chCurrent = *str;
if (chCurrent >= '0' && chCurrent <= '9') {
digit = chCurrent - '0';
} else if (chCurrent >= 'A' && chCurrent <= 'Z') {
digit = chCurrent - 'A' + 10;
} else if (chCurrent >= 'a' && chCurrent <= 'z') {
digit = chCurrent - 'a' + 10;
} else {
digit = -1;
} /* if */
if (digit < 0 || digit >= base) {
*value = bMinus ? -RunningTotal : RunningTotal;
return STATUS_SUCCESS;
} /* if */
RunningTotal = RunningTotal * base + digit;
str++;
} /* while */
*value = bMinus ? -RunningTotal : RunningTotal;
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlIntegerToChar (NTDLL.@)
*
* Converts an unsigned integer to a character string.
*
* RETURNS
* Success: STATUS_SUCCESS. str contains the converted number
* Failure: STATUS_INVALID_PARAMETER, if base is not 0, 2, 8, 10 or 16.
* STATUS_BUFFER_OVERFLOW, if str would be larger than length.
* STATUS_ACCESS_VIOLATION, if str is NULL.
*
* NOTES
* Instead of base 0 it uses 10 as base.
* Writes at most length characters to the string str.
* Str is '\0' terminated when length allows it.
* When str fits exactly in length characters the '\0' is omitted.
*/
NTSTATUS WINAPI RtlIntegerToChar(
ULONG value, /* [I] Value to be converted */
ULONG base, /* [I] Number base for conversion (allowed 0, 2, 8, 10 or 16) */
ULONG length, /* [I] Length of the str buffer in bytes */
PCHAR str) /* [O] Destination for the converted value */
{
CHAR buffer[33];
PCHAR pos;
CHAR digit;
ULONG len;
if (base == 0) {
base = 10;
} else if (base != 2 && base != 8 && base != 10 && base != 16) {
return STATUS_INVALID_PARAMETER;
} /* if */
pos = &buffer[32];
*pos = '\0';
do {
pos--;
digit = value % base;
value = value / base;
if (digit < 10) {
*pos = '0' + digit;
} else {
*pos = 'A' + digit - 10;
} /* if */
} while (value != 0L);
len = &buffer[32] - pos;
if (len > length) {
return STATUS_BUFFER_OVERFLOW;
} else if (str == NULL) {
return STATUS_ACCESS_VIOLATION;
} else if (len == length) {
memcpy(str, pos, len);
} else {
memcpy(str, pos, len + 1);
} /* if */
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlUnicodeStringToInteger (NTDLL.@)
*
* Converts a unicode string into its integer equivalent.
*
* RETURNS
* Success: STATUS_SUCCESS. value contains the converted number
* Failure: STATUS_INVALID_PARAMETER, if base is not 0, 2, 8, 10 or 16.
* STATUS_ACCESS_VIOLATION, if value is NULL.
*
* NOTES
* For base 0 it uses 10 as base and the string should be in the format
* "{whitespace} [+|-] [0[x|o|b]] {digits}".
* For other bases the string should be in the format
* "{whitespace} [+|-] {digits}".
* No check is made for value overflow, only the lower 32 bits are assigned.
* If str is NULL it crashes, as the native function does.
*
* DIFFERENCES
* This function does not read garbage on string length 0 as the native
* version does.
*/
NTSTATUS WINAPI RtlUnicodeStringToInteger(
const UNICODE_STRING *str, /* [I] Unicode string to be converted */
ULONG base, /* [I] Number base for conversion (allowed 0, 2, 8, 10 or 16) */
ULONG *value) /* [O] Destination for the converted value */
{
LPWSTR lpwstr = str->Buffer;
USHORT CharsRemaining = str->Length / sizeof(WCHAR);
WCHAR wchCurrent;
int digit;
ULONG RunningTotal = 0;
BOOL bMinus = FALSE;
while (CharsRemaining >= 1 && *lpwstr <= ' ') {
lpwstr++;
CharsRemaining--;
} /* while */
if (CharsRemaining >= 1) {
if (*lpwstr == '+') {
lpwstr++;
CharsRemaining--;
} else if (*lpwstr == '-') {
bMinus = TRUE;
lpwstr++;
CharsRemaining--;
} /* if */
} /* if */
if (base == 0) {
base = 10;
if (CharsRemaining >= 2 && lpwstr[0] == '0') {
if (lpwstr[1] == 'b') {
lpwstr += 2;
CharsRemaining -= 2;
base = 2;
} else if (lpwstr[1] == 'o') {
lpwstr += 2;
CharsRemaining -= 2;
base = 8;
} else if (lpwstr[1] == 'x') {
lpwstr += 2;
CharsRemaining -= 2;
base = 16;
} /* if */
} /* if */
} else if (base != 2 && base != 8 && base != 10 && base != 16) {
return STATUS_INVALID_PARAMETER;
} /* if */
if (value == NULL) {
return STATUS_ACCESS_VIOLATION;
} /* if */
while (CharsRemaining >= 1) {
wchCurrent = *lpwstr;
if (wchCurrent >= '0' && wchCurrent <= '9') {
digit = wchCurrent - '0';
} else if (wchCurrent >= 'A' && wchCurrent <= 'Z') {
digit = wchCurrent - 'A' + 10;
} else if (wchCurrent >= 'a' && wchCurrent <= 'z') {
digit = wchCurrent - 'a' + 10;
} else {
digit = -1;
} /* if */
if (digit < 0 || digit >= base) {
*value = bMinus ? -RunningTotal : RunningTotal;
return STATUS_SUCCESS;
} /* if */
RunningTotal = RunningTotal * base + digit;
lpwstr++;
CharsRemaining--;
} /* while */
*value = bMinus ? -RunningTotal : RunningTotal;
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlIntegerToUnicodeString (NTDLL.@)
*
* Converts an unsigned integer to a '\0' terminated unicode string.
*
* RETURNS
* Success: STATUS_SUCCESS. str contains the converted number
* Failure: STATUS_INVALID_PARAMETER, if base is not 0, 2, 8, 10 or 16.
* STATUS_BUFFER_OVERFLOW, if str is too small to hold the string
* (with the '\0' termination). In this case str->Length
* is set to the length, the string would have (which can
* be larger than the MaximumLength).
*
* NOTES
* Instead of base 0 it uses 10 as base.
* If str is NULL it crashes, as the native function does.
*
* DIFFERENCES
* Do not return STATUS_BUFFER_OVERFLOW when the string is long enough.
* The native function does this when the string would be longer than 16
* characters even when the string parameter is long enough.
*/
NTSTATUS WINAPI RtlIntegerToUnicodeString(
ULONG value, /* [I] Value to be converted */
ULONG base, /* [I] Number base for conversion (allowed 0, 2, 8, 10 or 16) */
UNICODE_STRING *str) /* [O] Destination for the converted value */
{
WCHAR buffer[33];
PWCHAR pos;
WCHAR digit;
if (base == 0) {
base = 10;
} else if (base != 2 && base != 8 && base != 10 && base != 16) {
return STATUS_INVALID_PARAMETER;
} /* if */
pos = &buffer[32];
*pos = '\0';
do {
pos--;
digit = value % base;
value = value / base;
if (digit < 10) {
*pos = '0' + digit;
} else {
*pos = 'A' + digit - 10;
} /* if */
} while (value != 0L);
str->Length = (&buffer[32] - pos) * sizeof(WCHAR);
if (str->Length >= str->MaximumLength) {
return STATUS_BUFFER_OVERFLOW;
} else {
memcpy(str->Buffer, pos, str->Length + sizeof(WCHAR));
} /* if */
return STATUS_SUCCESS;
}
/*************************************************************************
* RtlGUIDFromString (NTDLL.@)
*
* Convert a string representation of a GUID into a GUID.
*
* PARAMS
* str [I] String representation in the format "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}"
* guid [O] Destination for the converted GUID
*
* RETURNS
* Success: STATUS_SUCCESS. guid contains the converted value.
* Failure: STATUS_INVALID_PARAMETER, if str is not in the expected format.
*
* SEE ALSO
* See RtlStringFromGUID.
*/
NTSTATUS WINAPI RtlGUIDFromString(PUNICODE_STRING str, GUID* guid)
{
int i = 0;
const WCHAR *lpszCLSID = str->Buffer;
BYTE* lpOut = (BYTE*)guid;
TRACE("(%s,%p)\n", debugstr_us(str), guid);
/* Convert string: {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}
* to memory: DWORD... WORD WORD BYTES............
*/
while (i <= 37)
{
switch (i)
{
case 0:
if (*lpszCLSID != '{')
return STATUS_INVALID_PARAMETER;
break;
case 9: case 14: case 19: case 24:
if (*lpszCLSID != '-')
return STATUS_INVALID_PARAMETER;
break;
case 37:
if (*lpszCLSID != '}')
return STATUS_INVALID_PARAMETER;
break;
default:
{
WCHAR ch = *lpszCLSID, ch2 = lpszCLSID[1];
unsigned char byte;
/* Read two hex digits as a byte value */
if (ch >= '0' && ch <= '9') ch = ch - '0';
else if (ch >= 'a' && ch <= 'f') ch = ch - 'a' + 10;
else if (ch >= 'A' && ch <= 'F') ch = ch - 'A' + 10;
else return STATUS_INVALID_PARAMETER;
if (ch2 >= '0' && ch2 <= '9') ch2 = ch2 - '0';
else if (ch2 >= 'a' && ch2 <= 'f') ch2 = ch2 - 'a' + 10;
else if (ch2 >= 'A' && ch2 <= 'F') ch2 = ch2 - 'A' + 10;
else return STATUS_INVALID_PARAMETER;
byte = ch << 4 | ch2;
switch (i)
{
#ifndef WORDS_BIGENDIAN
/* For Big Endian machines, we store the data such that the
* dword/word members can be read as DWORDS and WORDS correctly. */
/* Dword */
case 1: lpOut[3] = byte; break;
case 3: lpOut[2] = byte; break;
case 5: lpOut[1] = byte; break;
case 7: lpOut[0] = byte; lpOut += 4; break;
/* Word */
case 10: case 15: lpOut[1] = byte; break;
case 12: case 17: lpOut[0] = byte; lpOut += 2; break;
#endif
/* Byte */
default: lpOut[0] = byte; lpOut++; break;
}
lpszCLSID++; /* Skip 2nd character of byte */
i++;
}
}
lpszCLSID++;
i++;
}
return STATUS_SUCCESS;
}
/*************************************************************************
* RtlStringFromGUID (NTDLL.@)
*
* Convert a GUID into a string representation of a GUID.
*
* PARAMS
* guid [I] GUID to convert
* str [O] Destination for the converted string
*
* RETURNS
* Success: STATUS_SUCCESS. str contains the converted value.
* Failure: STATUS_NO_MEMORY, if memory for str cannot be allocated.
*
* SEE ALSO
* See RtlGUIDFromString.
*/
NTSTATUS WINAPI RtlStringFromGUID(const GUID* guid, UNICODE_STRING *str)
{
static const WCHAR szFormat[] = { '{','%','0','8','l','X','-',
'%','0','4','X','-', '%','0','4','X','-','%','0','2','X','%','0','2','X',
'-', '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X',
'%','0','2','X','%','0','2','X','}','\0' };
TRACE("(%p,%p)\n", guid, str);
str->Length = GUID_STRING_LENGTH * sizeof(WCHAR);
str->MaximumLength = str->Length + sizeof(WCHAR);
str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, str->MaximumLength);
if (!str->Buffer)
{
str->Length = str->MaximumLength = 0;
return STATUS_NO_MEMORY;
}
sprintfW(str->Buffer, szFormat, guid->Data1, guid->Data2, guid->Data3,
guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
return STATUS_SUCCESS;
}
/******************************************************************************
* RtlHashUnicodeString [NTDLL.@]
*/
NTSTATUS WINAPI RtlHashUnicodeString(PCUNICODE_STRING string, BOOLEAN case_insensitive, ULONG alg, ULONG *hash)
{
unsigned int i;
if (!string || !hash) return STATUS_INVALID_PARAMETER;
switch (alg)
{
case HASH_STRING_ALGORITHM_DEFAULT:
case HASH_STRING_ALGORITHM_X65599:
break;
default:
return STATUS_INVALID_PARAMETER;
}
*hash = 0;
for (i = 0; i < string->Length/sizeof(WCHAR); i++)
*hash = *hash*65599 + (case_insensitive ? toupperW(string->Buffer[i]) : string->Buffer[i]);
return STATUS_SUCCESS;
}
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