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Various fixes to the existing routines:

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* Export RtlWideStringTokenize()
 * Allow to compare whole strings in RtlWideStringCompare() when no length specified
 * RtlSameMemory() returns boolean now
 * Source bytes can be constant value in RtlCopyMemory()
This commit is contained in:
Rafal Kupiec
2022-09-05 15:17:12 +02:00
parent 8a91412ec4
commit d56b10f252
4 changed files with 30 additions and 22 deletions
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20
xtoskrnl/rtl/widestr.c
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@@ -25,6 +25,7 @@
*
* @since XT 1.0
*/
XTCDECL
INT
RtlWideStringCompare(IN CONST PWCHAR String1,
IN CONST PWCHAR String2,
@@ -33,7 +34,14 @@ RtlWideStringCompare(IN CONST PWCHAR String1,
ULONG Index;
/* Iterate through the strings */
for(Index = 0; Index < Length; Index++) {
for(Index = 0; ; Index++) {
/* Check if length limit reached */
if(Index != 0 && Index == Length)
{
/* Skip checking next characters */
break;
}
/* Check if string characters are equal */
if(String1[Index] != String2[Index])
{
@@ -42,9 +50,9 @@ RtlWideStringCompare(IN CONST PWCHAR String1,
}
/* Check if end of string reached */
if(!String1[Index])
if(!String1[Index] || !String2[Index])
{
/* Equal strings until the end of String1 */
/* Equal strings until the end of one of them */
return 0;
}
}
@@ -69,6 +77,7 @@ RtlWideStringCompare(IN CONST PWCHAR String1,
*
* @since: XT 1.0
*/
XTCDECL
PWCHAR
RtlWideStringTokenize(IN PWCHAR String,
IN CONST PWCHAR Delimiter,
@@ -81,7 +90,7 @@ RtlWideStringTokenize(IN PWCHAR String,
if(String == NULL && (String = *SavePtr) == NULL)
{
/* Empty string given */
return (NULL);
return NULL;
}
/* Check non-delimiter characters */
@@ -89,7 +98,7 @@ RtlWideStringTokenize(IN PWCHAR String,
if(Char == L'\0')
{
*SavePtr = NULL;
return (NULL);
return NULL;
}
Token = String - 1;
@@ -110,6 +119,7 @@ RtlWideStringTokenize(IN PWCHAR String,
{
String[-1] = L'\0';
}
/* Store pointer to the next token */
*SavePtr = String;