1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
C----------------------------------------------------------------------
subroutine ftcdfl(iunit,status)
C Check Data Unit Fill values
C Check that the data unit is correctly filled with zeros or blanks
C from the end of the data to the end of the current FITS 2880 byte block
C iunit i fortran unit number
C status i output error status
C
C written by Wm Pence, HEASARC/GSFC, June, 1994
integer iunit,status
C COMMON BLOCK DEFINITIONS:--------------------------------------------
integer nf,nb,ne
parameter (nf = 3000)
parameter (nb = 20)
parameter (ne = 200)
integer bufnum,chdu,hdutyp,maxhdu,hdstrt,hdend,nxthdr,dtstrt
integer nxtfld
logical wrmode
common/ft0001/bufnum(199),chdu(nb),hdutyp(nb),maxhdu(nb),
& wrmode(nb),hdstrt(nb,ne),hdend(nb),nxthdr(nb),dtstrt(nb),nxtfld
integer tfield,tstart,tbcol,rowlen,tdtype,trept,tnull,scount
integer theap,nxheap
double precision tscale,tzero
common/ft0002/tfield(nb),tstart(nb),tbcol(nf),rowlen(nb),
& tdtype(nf),trept(nf),tscale(nf),tzero(nf),tnull(nf),scount(nb)
& ,theap(nb),nxheap(nb)
character*1 chbuff(2880),chfill,xdummy(2879)
common/ftheap/chbuff,chfill,xdummy
C END OF COMMON BLOCK DEFINITIONS-----------------------------------
integer ibuff,filpos,nfill,i
if (status .gt. 0)return
ibuff=bufnum(iunit)
C check if the data unit is null
if (theap(ibuff) .eq. 0)return
C move to the beginning of the fill bytes
filpos=dtstrt(ibuff)+theap(ibuff)+scount(ibuff)
call ftmbyt(iunit,filpos,.true.,status)
C get all the fill bytes
nfill=(filpos+2879)/2880*2880-filpos
if (nfill .eq. 0)return
call ftgcbf(iunit,0,nfill,chbuff,status)
if (status .gt. 0)then
call ftpmsg('Error reading data unit fill bytes (FTCDFL).')
return
end if
C set the correct fill value to be checked
if (hdutyp(ibuff) .eq. 1)then
C this is an ASCII table; should be filled with blanks
chfill=char(32)
else
chfill=char(0)
end if
C check for all zeros or blanks
do 10 i=1,nfill
if (chbuff(i) .ne. chfill)then
status=255
if (hdutyp(ibuff) .eq. 1)then
call ftpmsg('Warning: remaining bytes following'//
& ' ASCII table data are not filled with blanks.')
else
call ftpmsg('Warning: remaining bytes following'//
& ' data are not filled with zeros.')
end if
return
end if
10 continue
end
|
