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[RTL]: RtlGetFullPathName_Ustr: Do not upcase the drive letter in the source string (that should not be modified), but use a temporary variable.

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svn path=/trunk/; revision=65533
This commit is contained in:
Hermès Bélusca-Maïto 2014-11-30 11:53:19 +00:00
parent a198ec0538
commit 20ac78114f
1 changed files with 25 additions and 8 deletions
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33
reactos/lib/rtl/path.c
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@ -598,38 +598,48 @@ RtlGetFullPathName_Ustr(
switch (*PathType)
{
case RtlPathTypeUncAbsolute: /* \\foo */
{
PrefixCut = RtlpSkipUNCPrefix(FileNameBuffer);
break;
}
case RtlPathTypeLocalDevice: /* \\.\foo */
{
PrefixCut = 4;
break;
}
case RtlPathTypeDriveAbsolute: /* c:\foo */
{
ASSERT(FileNameBuffer[1] == L':');
ASSERT(IS_PATH_SEPARATOR(FileNameBuffer[2]));
FileNameBuffer[0] = RtlUpcaseUnicodeChar(FileNameBuffer[0]);
Prefix = FileNameBuffer;
Prefix = RtlUpcaseUnicodeChar(FileNameBuffer[0]);
PrefixLength = 3 * sizeof(WCHAR);
Source += 3;
SourceLength -= 3 * sizeof(WCHAR);
PrefixCut = 3;
break;
}
case RtlPathTypeDriveRelative: /* c:foo */
{
WCHAR CurDrive, NewDrive;
Source += 2;
SourceLength -= 2 * sizeof(WCHAR);
if (RtlUpcaseUnicodeChar(FileNameBuffer[0]) != RtlUpcaseUnicodeChar(CurDirName->Buffer[0]) ||
CurDirName->Buffer[1] != L':')
CurDrive = RtlUpcaseUnicodeChar(CurDirName->Buffer[0]);
NewDrive = RtlUpcaseUnicodeChar(FileNameBuffer[0]);
if ((NewDrive != CurDrive) || CurDirName->Buffer[1] != L':')
{
FileNameBuffer[0] = RtlUpcaseUnicodeChar(FileNameBuffer[0]);
EnvVarNameBuffer[0] = L'=';
EnvVarNameBuffer[1] = FileNameBuffer[0];
EnvVarNameBuffer[1] = NewDrive;
EnvVarNameBuffer[2] = L':';
EnvVarNameBuffer[3] = UNICODE_NULL;
EnvVarName.Length = 3 * sizeof(WCHAR);
EnvVarName.MaximumLength = EnvVarName.Length + sizeof(WCHAR);
EnvVarName.Buffer = EnvVarNameBuffer;
@ -670,7 +680,7 @@ RtlGetFullPathName_Ustr(
default:
DPRINT1("RtlQueryEnvironmentVariable_U returned 0x%08lx\n", Status);
EnvVarNameBuffer[0] = FileNameBuffer[0];
EnvVarNameBuffer[0] = NewDrive;
EnvVarNameBuffer[1] = L':';
EnvVarNameBuffer[2] = L'\\';
EnvVarNameBuffer[3] = UNICODE_NULL;
@ -686,8 +696,10 @@ RtlGetFullPathName_Ustr(
}
/* Fall through */
DPRINT("RtlPathTypeDriveRelative - Using fall-through to RtlPathTypeRelative\n");
}
case RtlPathTypeRelative: /* foo */
{
Prefix = CurDirName->Buffer;
PrefixLength = CurDirName->Length;
if (CurDirName->Buffer[1] != L':')
@ -699,8 +711,10 @@ RtlGetFullPathName_Ustr(
PrefixCut = 3;
}
break;
}
case RtlPathTypeRooted: /* \xxx */
{
if (CurDirName->Buffer[1] == L':')
{
// The path starts with "C:\"
@ -719,8 +733,10 @@ RtlGetFullPathName_Ustr(
Prefix = CurDirName->Buffer;
}
break;
}
case RtlPathTypeRootLocalDevice: /* \\. */
{
Prefix = DeviceRootString.Buffer;
PrefixLength = DeviceRootString.Length;
Source += 3;
@ -728,6 +744,7 @@ RtlGetFullPathName_Ustr(
PrefixCut = 4;
break;
}
case RtlPathTypeUnknown:
goto Quit;