MZ is back!HEADmain

1 files changed, 146 insertions, 0 deletions

diff --git a/v4.0/src/MAPPER/QFILEINF.ASM b/v4.0/src/MAPPER/QFILEINF.ASM
new file mode 100644
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@@ -0,0 +1,146 @@
+; 0
+page 80,132
+;
+title CP/DOS DosQFileInfo mapper
+;
+
+FileAttributeSegment    segment word public 'fat'
+
+         extrn  FileAttributeTable:word
+
+FileAttributeSegment    ends
+
+dosxxx  segment byte public 'dos'
+        assume  cs:dosxxx,ds:nothing,es:nothing,ss:nothing
+;
+;**********************************************************************
+;*
+;*   MODULE:   dosQfileinfo
+;*
+;*   FILE NAME: dos052.asm
+;*
+;*   CALLING SEQUENCE:
+;*
+;*       push      word     filehandle
+;*       push      word     fileinfolevel
+;*       push@     other    fileinfobuffer
+;*       push      word     filebuffersize
+;*       call      dossetfileinfo
+;*
+;*   MODULES CALLED:  PC-DOS Int 21h, ah=57h, set file's date/time
+;*
+;*********************************************************************
+
+            public   dosQfileinfo
+            .sall
+            .xlist
+            include  macros.inc
+            .list
+
+
+FileInfo        struc
+CreateDate      dw      ?
+CreateTime      dw      ?
+LastAccessDate  dw      ?
+LastAccessTime  dw      ?
+LastWriteDate   dw      ?
+LastWriteTime   dw      ?
+DataLength      dd      ?       ; File size
+FileSpace       dd      ?       ; falloc_size
+Attributes      dw      ?       ; attributes
+FileInfo        ends
+
+
+str         struc
+old_bp      dw       ?
+return      dd       ?
+BufferSize  dw       ?          ; file data buffer size
+BufferPtr   dd       ?          ; file data buffer
+Level       dw       ?          ; file data info level
+Handle      dw       ?          ; file handle
+str         ends
+
+dosQfileinfo  proc     far
+        Enter   dosQfileinfo               ; save registers
+
+        mov     bx,[bp].handle             ;fill registers for function call
+
+        mov     ax,05700h
+        int     21h                        ; get file date and time
+        jc      ErrorExit                  ; jump if error
+
+        lds     si,[bp].BufferPtr          ; copy date and time to
+        mov     ds:[si].CreateDate,dx      ; file info return data area
+        mov     ds:[si].CreateTime,cx
+        mov     ds:[si].LastAccessDate,dx
+        mov     ds:[si].LastAccessTime,cx
+        mov     ds:[si].LastWriteDate,dx
+        mov     ds:[si].LastWriteTime,cx
+
+;  Calculate the file length and file space and save in the file info data area
+
+        mov     cx,0                       ; get the current position
+        mov     dx,0
+        mov     bx,[bp].handle             ; get file handle
+
+        mov     ax,04201h
+        int     21h                        ; move file pointer to the
+        jc      ErrorExit                  ; current position
+
+        push    dx
+        push    ax
+
+        mov     cx,0
+        mov     dx,0
+        mov     bx,[bp].Handle
+
+        mov     ax,04202h                  ; move file pointer to end-of-file
+        int     21h
+
+        lds     si,[bp].BufferPtr                 ; save the file length in
+        mov     ds:word ptr DataLength[si+0],ax   ; file info data area
+        mov     ds:word ptr DataLength[si+2],dx
+
+        test    ax,511
+        jz      HaveSpace
+
+        and     ax,not 511
+        add     ax,512
+        adc     dx,0
+
+HaveSpace:
+        mov     ds:word ptr FileSpace[si+0],ax      ; save file space
+        mov     ds:word ptr FileSpace[si+2],dx      ; in return data area
+
+;   calculate the file attribute  and save
+
+        pop     dx
+        pop     cx
+
+        mov     bx,[bp].Handle
+
+        mov     ax,04200h
+        int     21h                            ; move the file pointer
+        jc      ErrorExit
+
+        mov     ax,seg FileAttributeSegment
+        mov     ds,ax
+        assume  ds:FileAttributeSegment
+
+        mov     bx,[bp].Handle
+        add     bx,bx
+
+        mov     ax,FileAttributeTable[bx]
+        mov     [bp].Attributes,ax             ; save file attribute
+
+        sub     ax,ax                          ; set good return code
+
+ErrorExit:
+        mexit                                  ; restore registers
+        ret      size  str - 6                 ; return
+
+dosqfileinfo endp
+
+dosxxx      ends
+
+            end