https://git.reactos.org/?p=reactos.git;a=commitdiff;h=addf1e87fe643c412dc22f4fcb461410398e2f6b
commit addf1e87fe643c412dc22f4fcb461410398e2f6b Author: Hermès Bélusca-Maïto <[email protected]> AuthorDate: Fri Dec 3 23:15:03 2021 +0100 Commit: Hermès Bélusca-Maïto <[email protected]> CommitDate: Fri Dec 3 23:26:24 2021 +0100 [NTVDM] Log explicitly calls to Long FileName support functions in DOS INT 21h. Use MAXDWORD instead of hardcoded values. --- subsystems/mvdm/ntvdm/dos/dos32krnl/device.c | 2 +- subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c | 15 +++++++++++++-- 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/subsystems/mvdm/ntvdm/dos/dos32krnl/device.c b/subsystems/mvdm/ntvdm/dos/dos32krnl/device.c index 71fbdcef1aa..881f67e47d3 100644 --- a/subsystems/mvdm/ntvdm/dos/dos32krnl/device.c +++ b/subsystems/mvdm/ntvdm/dos/dos32krnl/device.c @@ -378,7 +378,7 @@ PDOS_DEVICE_NODE DosCreateDeviceEx(WORD Attributes, PCHAR DeviceName, WORD Priva /* Fill the header with data */ DriverHeader = SEG_OFF_TO_PTR(Segment, 0); - DriverHeader->Link = 0xFFFFFFFF; + DriverHeader->Link = MAXDWORD; DriverHeader->DeviceAttributes = Attributes; DriverHeader->StrategyRoutine = sizeof(DOS_DRIVER); DriverHeader->InterruptRoutine = sizeof(DOS_DRIVER) + sizeof(StrategyRoutine); diff --git a/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c b/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c index 641ab62ed93..6c94ade7e6d 100644 --- a/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c +++ b/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c @@ -1998,6 +1998,17 @@ VOID WINAPI DosInt21h(LPWORD Stack) break; } + /* Long FileName Support */ + case 0x71: + { + DPRINT1("INT 21h LFN Support, AH = %02Xh, AL = %02Xh NOT IMPLEMENTED!\n", + getAH(), getAL()); + + setAL(0); // Some functions expect AL to be 0 when it's not supported. + Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF; + break; + } + /* Unsupported */ default: // Default: { @@ -2302,7 +2313,7 @@ BOOLEAN DosKRNLInitialize(VOID) SysVars->BootDrive = RtlUpcaseUnicodeChar(SharedUserData->NtSystemRoot[0]) - 'A' + 1; /* Initialize the NUL device driver */ - SysVars->NullDevice.Link = 0xFFFFFFFF; + SysVars->NullDevice.Link = MAXDWORD; SysVars->NullDevice.DeviceAttributes = DOS_DEVATTR_NUL | DOS_DEVATTR_CHARACTER; // Offset from within the DOS data segment SysVars->NullDevice.StrategyRoutine = DOS_DATA_OFFSET(NullDriverRoutine); @@ -2380,7 +2391,7 @@ BOOLEAN DosKRNLInitialize(VOID) /* Initialize the SFT */ Sft = (PDOS_SFT)FAR_POINTER(SysVars->FirstSft); - Sft->Link = 0xFFFFFFFF; + Sft->Link = MAXDWORD; Sft->NumDescriptors = DOS_SFT_SIZE; for (i = 0; i < Sft->NumDescriptors; i++)
