84 lines
3.0 KiB
NASM
84 lines
3.0 KiB
NASM
;*************************************************************************************
|
|
; MODULE: CFILE.ASM DATE: APRIL 27,1997
|
|
; AUTHOR: SEAN M. KESSLER
|
|
; TARGET: 32 BIT LAT MODEL
|
|
; FUNCTION : BUFFERED FILE FUNCTIONS
|
|
;*************************************************************************************
|
|
.386
|
|
.MODEL FLAT
|
|
INCLUDE devioctl.inc
|
|
INCLUDE string.inc
|
|
INCLUDE openfile.inc
|
|
.CODE
|
|
|
|
_FileOpen proc near ; int FileOpen(char *pathFileName,FileInfo *pFileInfo,int access,int share,int open,int attributes)
|
|
push ebp ; save stack frame
|
|
mov ebp,esp ; create new frame
|
|
push esi ; save source index
|
|
CREATEFILE [ebp+08h],[ebp+10h],[ebp+14h],[ebp+18h],[ebp+1Ch] ; call create file
|
|
mov esi,[ebp+0Ch] ; move FileInfo ptr to esi
|
|
mov [FileInfo ptr [esi]].FileInfo@@mhFileHandle,eax ; store handle
|
|
pop esi ; restore source index
|
|
pop ebp ; restore previous frame
|
|
retn ; return near to caller
|
|
_FileOpen endp
|
|
|
|
_FileClose proc near
|
|
push ebp ; save prior frame
|
|
mov esp,esp ; create new stack frame
|
|
push esi ; save source index register
|
|
mov esi,[ebp+0Ch] ; move FileInfo ptr to esi
|
|
cmp [FileInfo ptr [esi]].FileInfo@@mhFileHandle,INVALID_HANDLE ; check for valid handle
|
|
je @@FileCloseEnd ; handle is not valid
|
|
CLOSEHANDLE [FileInfo ptr [esi]].FileInfo@@mhFileHandle ; close handle
|
|
mov [FileInfo ptr [esi]].FileInfo@@mhFileHandle,INVALID_HANDLE ; set handle to invalid state
|
|
@@FileCloseEnd: ; end sync address
|
|
pop esi ; restore source index
|
|
pop ebp ; restore prior stack frame
|
|
retn ; return near to caller
|
|
_FileClose endp
|
|
|
|
;FCLOSE MACRO sFileInfo
|
|
; LOCAL @@FCLOSEend
|
|
; cmp sFileInfo.FileInfo@@mhFileHandle,INVALID_HANDLE
|
|
; je @@FCLOSEend
|
|
; CLOSEHANDLE sFileInfo.FileInfo@@mhFileHandle
|
|
; mov sFileInfo.FileInfo@@mhFileHandle,INVALID_HANDLE
|
|
;@@FCLOSEend:
|
|
;ENDM
|
|
|
|
_FileRead proc near
|
|
push ebp
|
|
mov esp,esp
|
|
pop ebp
|
|
retn
|
|
_FileRead endp
|
|
_FileReadLine proc near
|
|
push ebp
|
|
mov esp,esp
|
|
pop ebp
|
|
retn
|
|
_FileReadLine endp
|
|
|
|
_FileWrite proc near
|
|
push ebp
|
|
mov esp,esp
|
|
pop ebp
|
|
retn
|
|
_FileWrite endp
|
|
|
|
_FileFlush proc near
|
|
push ebp
|
|
mov esp,esp
|
|
pop ebp
|
|
retn
|
|
_FileFlush endp
|
|
|
|
public _FileOpen
|
|
public _FileClose
|
|
public _FileRead
|
|
public _FileReadLine
|
|
public _FileWrite
|
|
public _FileFlush
|
|
END
|