7 |
BEGIN { |
BEGIN { |
8 |
use Exporter (); |
use Exporter (); |
9 |
use vars qw ($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS); |
use vars qw ($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS); |
10 |
$VERSION = 0.01; |
$VERSION = 0.03; |
11 |
@ISA = qw (Exporter); |
@ISA = qw (Exporter); |
12 |
#Give a hoot don't pollute, do not export more than needed by default |
#Give a hoot don't pollute, do not export more than needed by default |
13 |
@EXPORT = qw (); |
@EXPORT = qw (); |
22 |
|
|
23 |
=head1 SYNOPSIS |
=head1 SYNOPSIS |
24 |
|
|
25 |
use IsisDB |
use IsisDB; |
26 |
|
|
27 |
my $isis = new IsisDB( |
my $isis = new IsisDB( |
28 |
isisdb => './cds/cds', |
isisdb => './cds/cds', |
29 |
); |
); |
30 |
|
|
31 |
|
for(my $mfn = 1; $mfn <= $isis->{'maxmfn'}; $mfn++) { |
32 |
|
print $isis->to_ascii($mfn),"\n"; |
33 |
|
} |
34 |
|
|
35 |
=head1 DESCRIPTION |
=head1 DESCRIPTION |
36 |
|
|
37 |
This module will read CDS/ISIS databases and create hash values out of it. |
This module will read CDS/ISIS databases and create hash values out of it. |
38 |
It can be used as perl-only alternative to OpenIsis module. |
It can be used as perl-only alternative to OpenIsis module. |
39 |
|
|
40 |
|
This will module will always be slower that OpenIsis module which use C |
41 |
|
library. However, since it's written in perl, it's platform independent (so |
42 |
|
you don't need C compiler), and can be easily modified. |
43 |
|
|
44 |
|
Unique feature of this module is ability to C<include_deleted> records. |
45 |
|
It will also skip zero sized fields (OpenIsis has a bug in XS bindings, so |
46 |
|
fields which are zero sized will be filled with random junk from memory). |
47 |
|
|
48 |
=head1 METHODS |
=head1 METHODS |
49 |
|
|
50 |
=cut |
=cut |
63 |
# some binary reads |
# some binary reads |
64 |
# |
# |
65 |
|
|
|
sub Read32 { |
|
|
my $self = shift; |
|
|
|
|
|
my $f = shift || die "Read32 needs file handle"; |
|
|
read($$f,$b,4) || die "can't read 4 bytes from $$f from position ".tell($f); |
|
|
return unpack("l",$b); |
|
|
} |
|
|
|
|
66 |
=head2 new |
=head2 new |
67 |
|
|
68 |
Open CDS/ISIS database |
Open CDS/ISIS database |
71 |
isisdb => './cds/cds', |
isisdb => './cds/cds', |
72 |
read_fdt => 1, |
read_fdt => 1, |
73 |
debug => 1, |
debug => 1, |
74 |
|
include_deleted => 1, |
75 |
); |
); |
76 |
|
|
77 |
Options are described below: |
Options are described below: |
92 |
|
|
93 |
Dump a C<lot> of debugging output. |
Dump a C<lot> of debugging output. |
94 |
|
|
95 |
|
=item include_deleted |
96 |
|
|
97 |
|
Don't skip logically deleted records in ISIS. |
98 |
|
|
99 |
=back |
=back |
100 |
|
|
101 |
It will also set C<$isis-E<gt>{'maxmfn'}> which is maximum MFN stored in database. |
It will also set C<$isis-E<gt>{'maxmfn'}> which is maximum MFN stored in database. |
107 |
my $self = {}; |
my $self = {}; |
108 |
bless($self, $class); |
bless($self, $class); |
109 |
|
|
110 |
$self->{isisdb} = {@_}->{isisdb} || croak "new needs database name as argument!"; |
croak "new needs database name (isisdb) as argument!" unless ({@_}->{isisdb}); |
111 |
|
|
112 |
$self->{debug} = {@_}->{debug}; |
foreach my $v (qw{isisdb debug include_deleted}) { |
113 |
|
$self->{$v} = {@_}->{$v}; |
114 |
|
} |
115 |
|
|
116 |
# if you want to read .FDT file use read_fdt argument when creating class! |
# if you want to read .FDT file use read_fdt argument when creating class! |
117 |
if ({@_}->{read_fdt} && -e $self->{isisdb}.".FDT") { |
if ({@_}->{read_fdt} && -e $self->{isisdb}.".FDT") { |
152 |
# NXTMFP offset to next available position in last block |
# NXTMFP offset to next available position in last block |
153 |
# MFTYPE always 0 for user db file (1 for system) |
# MFTYPE always 0 for user db file (1 for system) |
154 |
seek(fileMST,4,0); |
seek(fileMST,4,0); |
155 |
$self->{'NXTMFN'}=$self->Read32(\*fileMST) || carp "NXTNFN is zero"; |
|
156 |
|
my $buff; |
157 |
|
|
158 |
|
read(fileMST, $buff, 4); |
159 |
|
$self->{'NXTMFN'}=unpack("l",$buff) || carp "NXTNFN is zero"; |
160 |
|
|
161 |
# save maximum MFN |
# save maximum MFN |
162 |
$self->{'maxmfn'} = $self->{'NXTMFN'} - 1; |
$self->{'maxmfn'} = $self->{'NXTMFN'} - 1; |
189 |
my $buff = shift || return; |
my $buff = shift || return; |
190 |
my @arr = unpack("ssssssllls", $buff); |
my @arr = unpack("ssssssllls", $buff); |
191 |
|
|
192 |
|
print "unpack_cnt: ",join(" ",@arr),"\n" if ($self->{'debug'}); |
193 |
|
|
194 |
my $IDTYPE = shift @arr; |
my $IDTYPE = shift @arr; |
195 |
foreach (@flds) { |
foreach (@flds) { |
196 |
$self->{$IDTYPE}->{$_} = abs(shift @arr); |
$self->{$IDTYPE}->{$_} = abs(shift @arr); |
197 |
} |
} |
198 |
} |
} |
199 |
|
|
|
my $buff; |
|
200 |
read(fileCNT, $buff, 26); |
read(fileCNT, $buff, 26); |
201 |
$self->unpack_cnt($buff); |
$self->unpack_cnt($buff); |
202 |
|
|
208 |
|
|
209 |
print Dumper($self) if ($self->{debug}); |
print Dumper($self) if ($self->{debug}); |
210 |
|
|
211 |
|
# open files for later |
212 |
|
open($self->{'fileXRF'}, $self->{isisdb}.".XRF") || croak "can't open '$self->{isisdb}.XRF': $!"; |
213 |
|
|
214 |
|
open($self->{'fileMST'}, $self->{isisdb}.".MST") || croak "can't open '$self->{isisdb}.MST': $!"; |
215 |
|
|
216 |
$self ? return $self : return undef; |
$self ? return $self : return undef; |
217 |
} |
} |
218 |
|
|
219 |
=head2 GetMFN |
=head2 fetch |
220 |
|
|
221 |
Read record with selected MFN |
Read record with selected MFN |
222 |
|
|
223 |
my $rec = $isis->GetMFN(55); |
my $rec = $isis->fetch(55); |
224 |
|
|
225 |
Returns hash with keys which are field names and values are unpacked values |
Returns hash with keys which are field names and values are unpacked values |
226 |
for that field. |
for that field. |
227 |
|
|
228 |
=cut |
=cut |
229 |
|
|
230 |
sub GetMFN { |
sub fetch { |
231 |
my $self = shift; |
my $self = shift; |
232 |
|
|
233 |
my $mfn = shift || croak "GetMFN needs MFN as argument!"; |
my $mfn = shift || croak "fetch needs MFN as argument!"; |
234 |
|
|
235 |
print "GetMFN: $mfn\n" if ($self->{debug}); |
print "fetch: $mfn\n" if ($self->{debug}); |
|
|
|
|
open(fileXRF, $self->{isisdb}.".XRF") || croak "can't open '$self->{isisdb}.XRF': $!"; |
|
236 |
|
|
237 |
# XXX check this? |
# XXX check this? |
238 |
my $mfnpos=($mfn+int(($mfn-1)/127))*4; |
my $mfnpos=($mfn+int(($mfn-1)/127))*4; |
239 |
|
|
240 |
print "seeking to $mfnpos in file '$self->{isisdb}.XRF'\n" if ($self->{debug}); |
print "seeking to $mfnpos in file '$self->{isisdb}.XRF'\n" if ($self->{debug}); |
241 |
seek(fileXRF,$mfnpos,0); |
seek($self->{'fileXRF'},$mfnpos,0); |
242 |
|
|
243 |
|
my $buff; |
244 |
|
|
245 |
# read XRFMFB abd XRFMFP |
# read XRFMFB abd XRFMFP |
246 |
my $pointer=$self->Read32(\*fileXRF); |
read($self->{'fileXRF'}, $buff, 4); |
247 |
|
my $pointer=unpack("l",$buff) || carp "pointer is null"; |
248 |
|
|
249 |
my $XRFMFB = int($pointer/2048); |
my $XRFMFB = int($pointer/2048); |
250 |
my $XRFMFP = $pointer - ($XRFMFB*2048); |
my $XRFMFP = $pointer - ($XRFMFB*2048); |
265 |
|
|
266 |
print "$offset - $offset2 - $offset3 - $offset4\n" if ($self->{debug}); |
print "$offset - $offset2 - $offset3 - $offset4\n" if ($self->{debug}); |
267 |
|
|
|
close(fileXRF); |
|
|
|
|
268 |
# Get Record Information |
# Get Record Information |
269 |
|
|
270 |
open(fileMST, $self->{isisdb}.".MST") || croak "can't open '$self->{isisdb}.MST': $!"; |
seek($self->{'fileMST'},$offset4,0); |
|
|
|
|
seek(fileMST,$offset4,0); |
|
271 |
|
|
272 |
my $value=$self->Read32(\*fileMST); |
read($self->{'fileMST'}, $buff, 4); |
273 |
|
my $value=unpack("l",$buff); |
274 |
|
|
275 |
if ($value!=$mfn) { |
if ($value!=$mfn) { |
276 |
print ("Error: The MFN:".$mfn." is not found in MST(".$value.")"); |
print ("Error: The MFN:".$mfn." is not found in MST(".$value.")"); |
284 |
# $NVF=$self->Read16($fileMST); |
# $NVF=$self->Read16($fileMST); |
285 |
# $STATUS=$self->Read16($fileMST); |
# $STATUS=$self->Read16($fileMST); |
286 |
|
|
287 |
my $buff; |
read($self->{'fileMST'}, $buff, 14); |
|
read(fileMST, $buff, 14); |
|
288 |
|
|
289 |
my ($MFRL,$MFBWB,$MFBWP,$BASE,$NVF,$STATUS) = unpack("slssss", $buff); |
my ($MFRL,$MFBWB,$MFBWP,$BASE,$NVF,$STATUS) = unpack("slssss", $buff); |
290 |
|
|
291 |
print "MFRL: $MFRL MFBWB: $MFBWB MFBWP: $MFBWP BASE: $BASE NVF: $NVF STATUS: $STATUS\n" if ($self->{debug}); |
print "MFRL: $MFRL MFBWB: $MFBWB MFBWP: $MFBWP BASE: $BASE NVF: $NVF STATUS: $STATUS\n" if ($self->{debug}); |
292 |
|
|
293 |
|
# delete old record |
294 |
|
delete $self->{record}; |
295 |
|
|
296 |
|
if (! $self->{'include_deleted'} && $MFRL < 0) { |
297 |
|
print "## logically deleted record $mfn, skipping...\n" if ($self->{debug}); |
298 |
|
return; |
299 |
|
} |
300 |
|
|
301 |
# Get Directory Format |
# Get Directory Format |
302 |
|
|
303 |
my @FieldPOS; |
my @FieldPOS; |
304 |
my @FieldLEN; |
my @FieldLEN; |
305 |
my @FieldTAG; |
my @FieldTAG; |
306 |
|
|
307 |
|
read($self->{'fileMST'}, $buff, 6 * $NVF); |
308 |
|
|
309 |
|
my $fld_len = 0; |
310 |
|
|
311 |
for (my $i = 0 ; $i < $NVF ; $i++) { |
for (my $i = 0 ; $i < $NVF ; $i++) { |
312 |
|
|
313 |
# $TAG=$self->Read16($fileMST); |
# $TAG=$self->Read16($fileMST); |
314 |
# $POS=$self->Read16($fileMST); |
# $POS=$self->Read16($fileMST); |
315 |
# $LEN=$self->Read16($fileMST); |
# $LEN=$self->Read16($fileMST); |
316 |
|
|
317 |
read(fileMST, $buff, 6); |
my ($TAG,$POS,$LEN) = unpack("sss", substr($buff,$i * 6, 6)); |
|
my ($TAG,$POS,$LEN) = unpack("sss", $buff); |
|
318 |
|
|
319 |
print "TAG: $TAG POS: $POS LEN: $LEN\n" if ($self->{debug}); |
print "TAG: $TAG POS: $POS LEN: $LEN\n" if ($self->{debug}); |
320 |
|
|
331 |
push @FieldTAG,$TAG; |
push @FieldTAG,$TAG; |
332 |
push @FieldPOS,$POS; |
push @FieldPOS,$POS; |
333 |
push @FieldLEN,$LEN; |
push @FieldLEN,$LEN; |
334 |
|
|
335 |
|
$fld_len += $LEN; |
336 |
} |
} |
337 |
|
|
338 |
# Get Variable Fields |
# Get Variable Fields |
339 |
|
|
340 |
delete $self->{record}; |
read($self->{'fileMST'},$buff,$fld_len); |
341 |
|
|
342 |
for (my $i = 0 ; $i < $NVF ; $i++) { |
for (my $i = 0 ; $i < $NVF ; $i++) { |
343 |
my $rec; |
# skip zero-sized fields |
344 |
read(fileMST,$rec,$FieldLEN[$i]); |
next if ($FieldLEN[$i] == 0); |
|
push @{$self->{record}->{$FieldTAG[$i]}}, $rec; |
|
|
} |
|
|
close(fileMST); |
|
345 |
|
|
346 |
# The record is marked for deletion |
push @{$self->{record}->{$FieldTAG[$i]}}, substr($buff,$FieldPOS[$i],$FieldLEN[$i]); |
|
if ($STATUS==1) { |
|
|
return -1; |
|
347 |
} |
} |
348 |
|
close(fileMST); |
349 |
|
|
350 |
print Dumper($self) if ($self->{debug}); |
print Dumper($self) if ($self->{debug}); |
351 |
|
|
365 |
|
|
366 |
my $mfn = shift || croak "need MFN"; |
my $mfn = shift || croak "need MFN"; |
367 |
|
|
368 |
my $rec = $self->GetMFN($mfn); |
my $rec = $self->fetch($mfn); |
369 |
|
|
370 |
my $out = "0\t$mfn"; |
my $out = "0\t$mfn"; |
371 |
|
|
378 |
return $out; |
return $out; |
379 |
} |
} |
380 |
|
|
|
################# old cruft which is not ported from php to perl |
|
|
|
|
|
=begin php |
|
|
|
|
|
# Load the dictionary from the $db.L0x files. |
|
|
# Not usefull Yet |
|
|
|
|
|
sub LoadDictionary() |
|
|
{ |
|
|
$fileL01=fopen($self->{isisdb}.".L01","r"); |
|
|
rewind($fileL01); |
|
|
|
|
|
do |
|
|
{ |
|
|
|
|
|
$POS=$self->Read32($fileL01); |
|
|
$OCK=$self->Read16($fileL01); |
|
|
$IT=$self->Read16($fileL01); |
|
|
$PS=$self->Read32($fileL01); |
|
|
print "<br>PS:".$PS." ".$self->{ORDF}->{1}." "; |
|
|
for ($i=0;$i<$OCK;$i++) |
|
|
{ |
|
|
$KEY=fread($fileL01,10); |
|
|
|
|
|
print $KEY." ### "; |
|
|
|
|
|
$INFO1=$self->Read32($fileL01); |
|
|
$INFO2=$self->Read32($fileL01); |
|
|
|
|
|
#L01Key->{$key}=array($INFO1,$INFO2); |
|
|
} |
|
|
|
|
|
rewind($fileL01); |
|
|
$offset=($PS-1)*(12+$self->{ORDF}->{1}*18*2); |
|
|
fseek($fileL01,$offset); |
|
|
|
|
|
} While (!feof($fileL01)); |
|
|
|
|
|
fclose($fileL01); |
|
|
} |
|
|
|
|
|
# self function search through the tree and returns an array of pointers to IFP |
|
|
# The function must be recursive |
|
|
|
|
|
sub SearchTree($search,$fileNB,$PUNT) |
|
|
{ |
|
|
$offset=(($PUNT-1)*(8+2*$self->{ORDN}->{1}*14)); |
|
|
|
|
|
rewind($fileNB1); |
|
|
|
|
|
fseek($fileNB,$offset); |
|
|
|
|
|
$POS=$self->Read32($fileNB); |
|
|
$OCK=$self->Read16($fileNB); |
|
|
$IT=$self->Read16($fileNB); |
|
|
|
|
|
#print "<br>".$POS." - ".$OCK." - ".$IT; |
|
|
|
|
|
$OLDPUNT=$POS; |
|
|
$j=0; |
|
|
for ($i=0;$i<$OCK;$i++) |
|
|
{ |
|
|
$KEY=fread($fileNB,10); |
|
|
|
|
|
$PUNT=$self->Read32($fileNB); |
|
|
|
|
|
#print " ## ".chop($KEY)."(".$PUNT."-".$OLDPUNT.") ## "; |
|
|
|
|
|
If (strcmp($search,chop($KEY))<0) |
|
|
{ |
|
|
break; |
|
|
} |
|
|
$OLDPUNT=$PUNT; |
|
|
} |
|
|
#print $OLDPUNT; |
|
|
Return $OLDPUNT; |
|
|
} |
|
|
|
|
|
# Search ISIS for record containing search |
|
|
# Return a sorted array of MFN |
|
|
|
|
|
sub Search($search) |
|
|
{ |
|
|
|
|
|
$search=strtoupper($search); |
|
|
#print "Searching....".$search." - ".$self->{POSRX}->{1}."<br>"; |
|
|
# first search .x01 |
|
|
|
|
|
|
|
|
# Search in .N01 |
|
|
|
|
|
|
|
|
$fileN01=fopen($self->{isisdb}.".N01","r"); |
|
|
$offset=(($self->{POSRX}->{1}-1)*(8+2*$self->{ORDN}->{1}*14)); |
|
|
|
|
|
do |
|
|
{ |
|
|
rewind($fileN01); |
|
|
|
|
|
fseek($fileN01,$offset); |
|
|
|
|
|
$POS=$self->Read32($fileN01); |
|
|
$OCK=$self->Read16($fileN01); |
|
|
$IT=$self->Read16($fileN01); |
|
|
|
|
|
#print "<br>".$POS." - ".$OCK." - ".$IT; |
|
|
|
|
|
$OLDPUNT=$POS; |
|
|
for ($i=0;$i<$OCK;$i++) |
|
|
{ |
|
|
$KEY=fread($fileN01,10); |
|
|
|
|
|
$PUNT=$self->Read32($fileN01); |
|
|
|
|
|
#print " ## ".chop($KEY)."(".$PUNT."-".$OLDPUNT.") ## "; |
|
|
|
|
|
If (strcmp($search,chop($KEY))<0) |
|
|
{ |
|
|
break; |
|
|
} |
|
|
$OLDPUNT=$PUNT; |
|
|
} |
|
|
$offset=(($OLDPUNT-1)*(8+2*$self->{ORDN}->{1}*14)); |
|
|
} while ($OLDPUNT>0); |
|
|
#print $OLDPUNT; |
|
|
|
|
|
|
|
|
fclose($fileN01); |
|
|
|
|
|
# Now look for records in .L01 file |
|
|
$fileL01=fopen($self->{isisdb}.".L01","r"); |
|
|
rewind($fileL01); |
|
|
|
|
|
$offset=(-$OLDPUNT-1)*(12+$self->{ORDF}->{1}*18*2); |
|
|
fseek($fileL01,$offset); |
|
|
|
|
|
$POS=$self->Read32($fileL01); |
|
|
$OCK=$self->Read16($fileL01); |
|
|
$IT=$self->Read16($fileL01); |
|
|
$PS=$self->Read32($fileL01); |
|
|
#print "<br>POS:".$POS." ".$self->{ORDF}->{1}." "; |
|
|
for ($i=0;$i<$OCK;$i++) |
|
|
{ |
|
|
$KEY=fread($fileL01,10); |
|
|
|
|
|
#print $KEY." ### "; |
|
|
|
|
|
$INFO1=$self->Read32($fileL01); |
|
|
$INFO2=$self->Read32($fileL01); |
|
|
|
|
|
If (strcmp($search,chop($KEY))==0) |
|
|
{ |
|
|
break; |
|
|
} |
|
|
} |
|
|
|
|
|
fclose($fileL01); |
|
|
|
|
|
#print $INFO1."--".$INFO2; |
|
|
|
|
|
# Now look in .IFP for the MFN |
|
|
$fileIFP=fopen($self->{isisdb}.".IFP","r"); |
|
|
rewind($fileIFP); |
|
|
$offset=($INFO1-1)*512+($INFO2*4); |
|
|
fseek($fileIFP,$offset); |
|
|
|
|
|
$IFPBLK=$self->Read32($fileIFP); |
|
|
|
|
|
$IFPNXTB=$self->Read32($fileIFP); |
|
|
$IFPNXTP=$self->Read32($fileIFP); |
|
|
$IFPTOTP=$self->Read32($fileIFP); |
|
|
$IFPSEGP=$self->Read32($fileIFP); |
|
|
$IFPSEGC=$self->Read32($fileIFP); |
|
|
|
|
|
|
|
|
#print "<br>IFP:".$IFPBLK." # ".$IFPNXTB." - ".$IFPNXTP." - ".$IFPTOTP." - ".$IFPSEGP." - ".$IFPSEGC; |
|
|
|
|
|
rewind($fileIFP); |
|
|
$offset=($INFO1-1)*512+24+($INFO2*4); |
|
|
fseek($fileIFP,$offset); |
|
|
|
|
|
$j=24+($INFO2*4); |
|
|
$k=0; |
|
|
$l=1; |
|
|
$OLDPMFN=""; |
|
|
for ($i=0;$i<$IFPSEGP;$i++) |
|
|
{ |
|
|
$B1=$self->Read8($fileIFP); |
|
|
$B2=$self->Read8($fileIFP); |
|
|
$B3=$self->Read8($fileIFP); |
|
|
$B4=$self->Read8($fileIFP); |
|
|
$B5=$self->Read8($fileIFP); |
|
|
$B6=$self->Read8($fileIFP); |
|
|
$B7=$self->Read8($fileIFP); |
|
|
$B8=$self->Read8($fileIFP); |
|
|
|
|
|
$PMFN=$B1*65536+$B2*256+$B3; |
|
|
$PTAG=$B4*256+$B5; |
|
|
$POCC=$B6; |
|
|
$PCNT=$B7*256+$B8; |
|
|
|
|
|
if ($OLDPMFN!=$PMFN) |
|
|
{ |
|
|
if ($PMFN!=0) |
|
|
{ |
|
|
$self->{MFNArray}->{$l}=$PMFN; |
|
|
$OLDPMFN=$PMFN; |
|
|
$l+=1; |
|
|
} |
|
|
} |
|
|
|
|
|
$j=$j+8; |
|
|
#print "<br>".$PMFN."-".$PTAG." - ".$POCC." - ".$PCNT; |
|
|
#print "@@".$j."@@@@"; |
|
|
if ($j>=504) |
|
|
{ |
|
|
if ($IFPNXTB==0 && $IFPNXTP==0) |
|
|
{ |
|
|
$k=$k+1; |
|
|
rewind($fileIFP); |
|
|
$offset=($INFO1-1+$k)*512; |
|
|
fseek($fileIFP,$offset); |
|
|
$B=$self->Read32($fileIFP); |
|
|
#print "<br>-".$B."-<br>"; |
|
|
$j=0; |
|
|
} else |
|
|
{ |
|
|
rewind($fileIFP); |
|
|
$offset=($IFPNXTB-1)*512; |
|
|
fseek($fileIFP,$offset); |
|
|
|
|
|
$OLDIFPNXTB=$IFPNXTB; |
|
|
$OLDIFPNXTP=$IFPNXTP; |
|
|
|
|
|
$IFPBLK=$self->Read32($fileIFP); |
|
|
|
|
|
$IFPNXTB=$self->Read32($fileIFP); |
|
|
$IFPNXTP=$self->Read32($fileIFP); |
|
|
$IFPTOTP=$self->Read32($fileIFP); |
|
|
$IFPSEGP=$self->Read32($fileIFP); |
|
|
$IFPSEGC=$self->Read32($fileIFP); |
|
|
|
|
|
rewind($fileIFP); |
|
|
$offset=($OLDIFPNXTB-1)*512+24+($OLDIFPNXTP*4); |
|
|
fseek($fileIFP,$offset); |
|
|
|
|
|
$j=24+($OLDIFPNXTP*4); |
|
|
$k=0; |
|
|
$j=0; |
|
|
} |
|
|
} |
|
|
|
|
|
} |
|
|
fclose($fileIFP); |
|
|
return $l-1; |
|
|
} |
|
|
|
|
|
=cut |
|
|
|
|
381 |
# |
# |
382 |
# XXX porting from php left-over: |
# XXX porting from php left-over: |
383 |
# |
# |
387 |
# Probably direct usage is better! |
# Probably direct usage is better! |
388 |
# |
# |
389 |
|
|
390 |
sub GetFieldName { |
sub TagName { |
|
my $self = shift; |
|
|
return $self->{FieldName}; |
|
|
} |
|
|
|
|
|
sub GetTagName { |
|
391 |
my $self = shift; |
my $self = shift; |
392 |
return $self->{TagName}; |
return $self->{TagName}; |
393 |
} |
} |
394 |
|
|
395 |
sub GetFieldTag { |
sub NextMFN { |
|
my $self = shift; |
|
|
return $self->{FieldTAG}; |
|
|
} |
|
|
|
|
|
sub GetNextMFN { |
|
396 |
my $self = shift; |
my $self = shift; |
397 |
return $self->{NXTMFN}; |
return $self->{NXTMFN}; |
398 |
} |
} |
399 |
|
|
|
sub GetMFNArray { |
|
|
my $self = shift; |
|
|
return $self->{MFNArray}; |
|
|
} |
|
|
=begin php |
|
|
|
|
|
sub Read32($fileNB) |
|
|
{ |
|
|
$B1=ord(fread($fileNB,1)); |
|
|
$B2=ord(fread($fileNB,1)); |
|
|
$B3=ord(fread($fileNB,1)); |
|
|
$B4=ord(fread($fileNB,1)); |
|
|
|
|
|
if ($B4<=128) |
|
|
{ |
|
|
$value=$B1+$B2*256+$B3*65536+$B4*16777216; |
|
|
} else |
|
|
{ |
|
|
$value=$self->Not8($B1)+$self->Not8($B2)*256+$self->Not8($B3)*65536+$self->Not8($B4)*16777216; |
|
|
$value=-($value+1); |
|
|
} |
|
|
# print "(".$B1.",".$B2.",".$B3.",".$B4.":".$value.")"; |
|
|
|
|
|
return $value; |
|
|
} |
|
|
|
|
|
sub Read24($fileNB) |
|
|
{ |
|
|
$B1=ord(fread($fileNB,1)); |
|
|
$B2=ord(fread($fileNB,1)); |
|
|
$B3=ord(fread($fileNB,1)); |
|
|
|
|
|
$value=$B1+$B2*256+$B3*65536; |
|
|
|
|
|
# print "(".$B1.",".$B2.",".$B3.":".$value.")"; |
|
|
|
|
|
return $value; |
|
|
} |
|
|
|
|
|
sub Read16($fileNB) |
|
|
{ |
|
|
$B1=ord(fread($fileNB,1)); |
|
|
$B2=ord(fread($fileNB,1)); |
|
|
|
|
|
$value=$B1+$B2*256; |
|
|
# print "(".$B1.",".$B2.":".$value.")"; |
|
|
|
|
|
return $value; |
|
|
} |
|
|
|
|
|
sub Read8($fileNB) |
|
|
{ |
|
|
$B1=ord(fread($fileNB,1)); |
|
|
|
|
|
$value=$B1; |
|
|
# print "(".$value.")"; |
|
|
|
|
|
return $value; |
|
|
} |
|
|
|
|
|
sub Not8($value) |
|
|
{ |
|
|
$value=decbin($value); |
|
|
if (strlen($value)<8) |
|
|
{ |
|
|
$buffer=""; |
|
|
for($i=0;$i<(8-strlen($value));$i++) |
|
|
{ |
|
|
$buffer.="0"; |
|
|
} |
|
|
$value=$buffer.$value; |
|
|
} |
|
|
$value=ereg_replace("0","3",$value); |
|
|
$value=ereg_replace("1","0",$value); |
|
|
$value=ereg_replace("3","1",$value); |
|
|
$value=bindec($value); |
|
|
return $value; |
|
|
} |
|
|
} |
|
|
|
|
|
=cut |
|
|
|
|
400 |
1; |
1; |
|
__END__ |
|
401 |
|
|
402 |
=head1 BUGS |
=head1 BUGS |
403 |
|
|