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1829 lines
37 KiB
1829 lines
37 KiB
#!/usr/bin/env perl
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#-*- Mode: perl; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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# parse.pl: Common parsing stuff for the ximian-setup-tools backends.
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#
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# Copyright (C) 2000-2001 Ximian, Inc.
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#
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# Authors: Hans Petter Jansson <hpj@ximian.com>
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# Arturo Espinosa <arturo@ximian.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Library General Public License as published
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# by the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Library General Public License for more details.
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#
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# You should have received a copy of the GNU Library General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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$SCRIPTSDIR = "@scriptsdir@";
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if ($SCRIPTSDIR =~ /^@scriptsdir[@]/){
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$SCRIPTSDIR = ".";
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$DOTIN = ".in";
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}
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require "$SCRIPTSDIR/util.pl$DOTIN";
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require "$SCRIPTSDIR/file.pl$DOTIN";
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require "$SCRIPTSDIR/debug.pl$DOTIN";
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# The concept of keyword (kw) here is a key, normaly in its own line, whose
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# boolean representation is its own existence.
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# Every final parsing function to be used by a table must handle one key
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# at a time, but maybe parse several values from there and return a
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# ref to array or hash.
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#
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# Always return a scalar. If you need to return an array or a hash,
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# return a ref to it.
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# First some helper functions for the whole process.
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# Expand substrings of the form #$substr# to the $value in
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# the string or recursively in the array $strarr.
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sub gst_parse_expand
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{
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my ($strarr, $substr, $value) = @_;
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if (ref $strarr eq "ARRAY")
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{
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my ($i);
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$strarr = [ @$strarr ];
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foreach $i (@$strarr)
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{
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$i = &gst_parse_expand ($i, $substr, $value);
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}
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return $strarr;
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}
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$strarr =~ s/\#$substr\#/$value/;
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return $strarr;
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}
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sub gst_parse_replace_hash_values
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{
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my ($cp, $hash) = @_;
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my ($j, $replace_key, $value);
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foreach $j (@$cp)
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{
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while ($j =~ /%([^%]*)%/)
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{
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$replace_key = $1;
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if (exists $$hash{$replace_key})
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{
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$value = $$hash{$replace_key};
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if (ref $value)
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{
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$j = $value;
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}
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else
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{
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$j =~ s/%$replace_key%/$value/g;
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}
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}
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else
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{
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&gst_debug_print_line ("Warning: gst_parse_replace_hash_values: key $replace_key doesn't exist.");
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return 0;
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}
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}
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}
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return 1;
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}
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sub gst_parse_replace_files
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{
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my ($values, $fn_hash) = @_;
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my @ret;
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return () if $values eq undef;
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$values = [$values] if !ref $values;
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foreach $i (@$values)
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{
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if (exists $$fn_hash{$i})
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{
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push @ret, $$fn_hash{$i};
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}
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else
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{
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push @ret, $i;
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}
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}
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return @ret;
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}
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# Additional abstraction: parse table entries can have
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# arrays inside. The parsing proc will be ran with every
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# combination that the arrays provide. Ex:
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# ["user", \&gst_parse_foo, [0, 1], [2, 3] ] will parse
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# using the combinatory of [0, 1]x[2, 3] until a result
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# ne undef is given. Check RedHat 7.2's network parse table
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# for further enlightenment.
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sub gst_parse_run_entry
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{
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my ($hash, $key, $proc, $cp) = @_;
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my ($ncp, $i, $j, $res);
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$ncp = [@$cp];
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for ($i = 0; $i < scalar (@$cp); $i ++)
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{
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if (ref $$cp[$i] eq "ARRAY")
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{
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foreach $j (@{$$cp[$i]})
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{
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$$ncp[$i] = $j;
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$res = &gst_parse_run_entry ($hash, $key, $proc, $ncp);
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return $res if $res ne undef;
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}
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return undef;
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}
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}
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# OK, the given entry didn't have any array refs in it...
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return undef if (!&gst_parse_replace_hash_values ($cp, $hash));
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&gst_report_enter ();
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&gst_report ("parse_table", "$key");
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&gst_report_leave ();
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$$hash{$key} = &$proc (@$cp);
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return $$hash{$key};
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}
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# OK, this is the good stuff:
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# gst_parse_from_table takes a file mapping and a parse table.
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#
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# The functions in the replace tables, most of which are coded in
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# this file, receive the mapped files of the first argument, and then
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# a set of values.
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# The value the parse function returns is set into a hash,
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# using as key the first item of the parse table entry. This is done
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# only if the $hash{$key} is empty, which allows us to try with
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# several parse methods to try to get a value, where our parse functions
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# can return undef if they failed to get the requested value.
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#
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# A ref to the hash with all the fetched values is returned.
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sub gst_parse_from_table
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{
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my ($fn, $table) = @_;
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my %hash;
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my ($key, $proc, @param);
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my ($i, @cp, @files);
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foreach $i (@$table)
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{
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@cp = @$i;
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$key = shift (@cp);
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if ($hash{$key} eq undef)
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{
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$proc = shift (@cp);
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@files = &gst_parse_replace_files (shift (@cp), $fn);
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# Don't unshift the resulting files if none were given.
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unshift @cp, @files if (scalar @files) > 0;
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&gst_parse_run_entry (\%hash, $key, $proc, \@cp);
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}
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}
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foreach $i (keys (%hash))
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{
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delete $hash{$i} if ($hash{$i} eq undef);
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}
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return \%hash;
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}
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# Just return the passed values. If there's just
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# one value, the value. If more, a reference to an
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# array with the values.
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sub gst_parse_trivial
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{
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my (@res) = @_;
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&gst_report_enter ();
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&gst_report ("parse_trivial", "@res");
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&gst_report_leave ();
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return $res[0] if (scalar @res) <= 1;
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return \@res;
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}
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# Try to read a line from $fd and remove any leading or
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# trailing white spaces. Return ref to read $line or
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# -1 if eof.
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sub gst_parse_chomp_line_std
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{
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my ($fd) = @_;
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my $line;
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$line = <$fd>;
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return -1 if !$line;
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chomp $line;
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$line =~ s/^[ \t]+//;
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$line =~ s/[ \t]+$//;
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return \$line;
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}
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# Assuming $line is a line read from a shell file,
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# remove comments.
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sub gst_parse_process_sh_line
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{
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my ($line) = @_;
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my ($pline);
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# This will put escaped hashes out of danger.
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# But only inside valid quotes!
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while ($line =~ /([^\"\']*[\"\'][^\#\"\']*)(\#?)([^\"\']*[\"\'])/g)
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{
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$pline .= $1;
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$pline .= "__hash__" if ($2 ne undef);
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$pline .= $3;
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}
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# The line may not match the regexp above,
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$pline = $line if ($pline eq undef);
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$pline =~ s/\\\#/\\__hash__/g;
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# Nuke everything after a hash and bye bye trailing spaces.
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$pline =~ s/[ \t]*\#.*//;
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# Let escaped hashes come back home.
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$pline =~ s/__hash__/\#/g;
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return $pline;
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}
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# Same as gst_parse_chomp_line_std, but apply
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# the sh line processing before returning.
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# -1 if eof, ref to read $line if success.
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sub gst_parse_chomp_line_hash_comment
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{
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my ($fd) = @_;
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my $line;
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$line = &gst_parse_chomp_line_std ($fd);
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return -1 if $line == -1;
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$line = &gst_parse_process_sh_line ($$line);
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return \$line;
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}
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# Get an sh line, and remove the export keyword, if any.
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sub gst_parse_chomp_line_sh_export
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{
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my ($fd) = @_;
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my $line;
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$line = &gst_parse_chomp_line_hash_comment ($fd);
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return -1 if $line == -1;
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$line = $$line;
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$line =~ s/^export //;
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return \$line;
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}
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# Parse a $file, wich is assumed to have a column-based format, with $re matching field separators
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# and one record per line. Search for $key, and return either a scalar with the first ocurrence,
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# or an array with all the found ocurrences.
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sub gst_parse_split_ref
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{
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my ($file, $key, $re, $all, $line_read_proc) = @_;
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my ($fd, @line, @res);
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&gst_report_enter ();
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&gst_report ("parse_split", $key, $file);
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$proc = $line_read_proc? $line_read_proc : \&gst_parse_chomp_line_std;
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$fd = &gst_file_open_read_from_names ($file);
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$all = 0 if !$fd;
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while (($line = &$proc ($fd)) != -1)
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{
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$line = $$line;
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next if $line eq "";
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@line = split ($re, $line, 2);
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if (shift (@line) =~ "^$key\$")
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{
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if ($all) {
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push @res, $line[0];
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}
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else
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{
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&gst_report_leave ();
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&gst_file_close ($fd);
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return \$line[0];
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}
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}
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}
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&gst_report_leave ();
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&gst_file_close ($fd);
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return \@res if ($all);
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return -1;
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}
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sub gst_parse_split
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{
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my $res;
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# Don't pass @_ like this anywhere. This is bad practice.
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$res = &gst_parse_split_ref (@_);
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return $$res if ref $res eq "SCALAR";
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return @$res if ref $res eq "ARRAY";
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return undef;
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}
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# This gives meaning to the $all flag of gst_parse_split, and returns a reference to the array, which
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# is what we want. (ie search a.com\nsearch b.com\nsearch c.com)
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sub gst_parse_split_all
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{
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my ($file, $key, $re, $line_read_proc) = @_;
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my @a;
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@a = &gst_parse_split ($file, $key, $re, 1, $line_read_proc);
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return \@a;
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}
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# Same, but use the hash_comment routine for line analysis.
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sub gst_parse_split_all_hash_comment
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{
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my ($file, $key, $re) = @_;
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return &gst_parse_split_all ($file, $key, $re, \&gst_parse_chomp_line_hash_comment);
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}
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# Make the elements of the resulting array unique.
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sub gst_parse_split_all_unique_hash_comment
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{
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my ($file, $key, $re) = @_;
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my ($arr, @res);
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my (%hash, $i);
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$arr = &gst_parse_split_all ($file, $key, $re, \&gst_parse_chomp_line_hash_comment);
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foreach $i (@$arr)
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{
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next if exists $hash{$i};
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$hash{$i} = 1;
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push @res, $i;
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}
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return \@res;
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}
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sub gst_parse_split_all_array_with_pos
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{
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my ($file, $key, $pos, $re, $sep, $line_read_proc) = @_;
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my ($arr, @s, @ret, $i);
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$arr = &gst_parse_split_all ($file, $key, $re, $line_read_proc);
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foreach $i (@$arr)
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{
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@s = split ($sep, $i);
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push @ret, @s[0];
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}
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return \@ret;
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}
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# Same, but for $all = 0. (ie nameserver 10.0.0.1)
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sub gst_parse_split_first_str
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{
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my ($file, $key, $re, $line_read_proc) = @_;
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return &gst_parse_split ($file, $key, $re, 0, $line_read_proc);
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}
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# Interpret the result as a boolean. (ie multi on)
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sub gst_parse_split_first_bool
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{
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my ($file, $key, $re, $line_read_proc) = @_;
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my $ret;
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$ret = &gst_parse_split_first_str ($file, $key, $re, $line_read_proc);
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return undef if ($ret eq undef);
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return (&gst_util_read_boolean ($ret)? 1: 0);
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}
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# After getting the first field, split the result with $sep matching separators. (ie order hosts,bind)
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sub gst_parse_split_first_array
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{
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my ($file, $key, $re, $sep, $line_read_proc) = @_;
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my @ret;
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@ret = split ($sep, &gst_parse_split ($file, $key, $re, 0, $line_read_proc));
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return \@ret;
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}
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sub gst_parse_split_first_array_pos
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{
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my ($file, $key, $pos, $re, $sep, $line_read_proc) = @_;
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my (@ret);
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@ret = split ($sep, &gst_parse_split ($file, $key, $re, 0, $line_read_proc));
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return $ret[$pos];
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}
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# Do an gst_parse_split_first_array and then make
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# the array elements unique. This is to fix broken
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# searchdomain entries in /etc/resolv.conf, for example.
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sub gst_parse_split_first_array_unique
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{
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my ($file, $key, $re, $sep, $line_read_proc) = @_;
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my (@arr, @res);
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my (%hash, $i);
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@arr = split ($sep, &gst_parse_split ($file, $key, $re, 0, $line_read_proc));
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foreach $i (@arr)
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{
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next if exists $hash{$i};
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$hash{$i} = 1;
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push @res, $i;
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}
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return \@res;
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}
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# For all keys in $file, sepparated from its values
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# by $key_re, sepparate its values using $value_re
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# and assign to a newly created hash. Use ONLY when
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# you don't know what keys you are going to parse
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# (i.e. /etc/hosts). Any other application will not
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# be very portable and should be avoided.
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sub gst_parse_split_hash
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{
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my ($file, $key_re, $value_re) = @_;
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my ($fd, @line, %res, $key);
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&gst_report_enter ();
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&gst_report ("parse_split_hash", $file);
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$fd = &gst_file_open_read_from_names ($file);
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while (<$fd>)
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{
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chomp;
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s/^[ \t]+//;
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s/[ \t]+$//;
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s/\#.*$//;
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next if (/^$/);
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@line = split ($key_re, $_, 2);
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$key = shift (@line);
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push @{$res{$key}}, split ($value_re, $line[0]);
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}
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&gst_file_close ($fd);
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&gst_report_leave ();
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return undef if (scalar keys (%res) == 0);
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return \%res;
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}
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# Same as above, but join lines that end with '\'.
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sub gst_parse_split_hash_with_continuation
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{
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my ($file, $key_re, $value_re) = @_;
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my ($fd, $l, @line, %res, $key);
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&gst_report_enter ();
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&gst_report ("parse_split_hash_cont", $file);
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$fd = &gst_file_open_read_from_names ($file);
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while (($l = &gst_parse_ini_line_read ($fd)) != -1)
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{
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$_ = $$l;
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chomp;
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s/^[ \t]+//;
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s/[ \t]+$//;
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s/\#.*$//;
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next if (/^$/);
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@line = split ($key_re, $_, 2);
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$key = shift (@line);
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$res{$key} = [ split ($value_re, $line[0]) ];
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}
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&gst_file_close ($fd);
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&gst_report_leave ();
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|
return undef if (scalar keys (%res) == 0);
|
|
return \%res;
|
|
}
|
|
|
|
# Remove escape sequences in a shell value.
|
|
sub gst_parse_shell_unescape
|
|
{
|
|
my $ret = $_[0];
|
|
|
|
# Quote shell special chars.
|
|
$ret =~ s/\\\"/\\_/g;
|
|
$ret =~ s/\"//g;
|
|
$ret =~ s/\\_/\"/g;
|
|
$ret =~ s/\\\'/\\_/g;
|
|
$ret =~ s/\'//g;
|
|
$ret =~ s/\\_/\'/g;
|
|
$ret =~ s/\\(.)/$1/g;
|
|
|
|
return $ret;
|
|
}
|
|
|
|
# unescape (escape (x)) == x
|
|
sub gst_parse_shell_escape
|
|
{
|
|
my ($value) = @_;
|
|
|
|
$value =~ s/([\"\`\$\\])/\\$1/g;
|
|
$value = "\"$value\"" if ($value =~ /[ \t\'&|*?\[\]\{\}\{\}<>]/);
|
|
|
|
return $value;
|
|
}
|
|
|
|
# For files which are a list of /bin/sh shell variable declarations. (ie GATEWAY=10.10.10.1)
|
|
sub gst_parse_sh
|
|
{
|
|
my ($file, $key) = @_;
|
|
my $ret;
|
|
|
|
&gst_report_enter ();
|
|
&gst_report ("parse_sh", $key, $file);
|
|
$ret = &gst_parse_split_first_str ($file, $key, "[ \t]*=[ \t]*",
|
|
\&gst_parse_chomp_line_hash_comment);
|
|
&gst_report_leave ();
|
|
|
|
return &gst_parse_shell_unescape ($ret);
|
|
}
|
|
|
|
# Same, but interpret the returning value as a bool. (ie NETWORKING=yes)
|
|
sub gst_parse_sh_bool
|
|
{
|
|
my ($file, $key) = @_;
|
|
my $ret;
|
|
|
|
$ret = &gst_parse_sh ($file, $key);
|
|
|
|
return undef if ($ret eq undef);
|
|
return (&gst_util_read_boolean ($ret)? 1: 0);
|
|
}
|
|
|
|
# Get an sh value and then split with $re, returning ref to resulting array.
|
|
sub gst_parse_sh_split
|
|
{
|
|
my ($file, $key, $re) = @_;
|
|
my (@ret, $val);
|
|
|
|
$val = &gst_parse_sh ($file, $key);
|
|
@ret = split ($re, $val);
|
|
|
|
return \@ret;
|
|
}
|
|
|
|
# Get a fully qualified hostname from a $key shell var in $file
|
|
# and extract the hostname from there. e.g.: suse70's /etc/rc.config's FQHOSTNAME.
|
|
sub gst_parse_sh_get_hostname
|
|
{
|
|
my ($file, $key) = @_;
|
|
my ($val);
|
|
|
|
$val = &gst_parse_sh_split ($file, $key, "\\.");
|
|
|
|
return $$val[0];
|
|
}
|
|
|
|
# Get a fully qualified hostname from a $key shell var in $file
|
|
# and extract the domain from there. e.g.: suse70's /etc/rc.config's FQHOSTNAME.
|
|
sub gst_parse_sh_get_domain
|
|
{
|
|
my ($file, $key) = @_;
|
|
my ($val);
|
|
|
|
$val = &gst_parse_sh_split ($file, $key, "\\.");
|
|
|
|
return join ".", @$val[1..$#$val];
|
|
}
|
|
|
|
# For files which are a list of /bin/sh shell variable exports. (eg export GATEWAY=10.10.10.1)
|
|
sub gst_parse_sh_export
|
|
{
|
|
my ($file, $key) = @_;
|
|
my $ret;
|
|
|
|
&gst_report_enter ();
|
|
&gst_report ("parse_sh", $key, $file);
|
|
$ret = &gst_parse_split_first_str ($file, $key, "[ \t]*=[ \t]*",
|
|
\&gst_parse_chomp_line_sh_export);
|
|
&gst_report_leave ();
|
|
|
|
return &gst_parse_shell_unescape ($ret);
|
|
}
|
|
|
|
# Same, but interpret the returing value as a bool. (ie export NETWORKING=yes)
|
|
sub gst_parse_sh_export_bool
|
|
{
|
|
my ($file, $key) = @_;
|
|
my $ret;
|
|
|
|
$ret = &gst_parse_sh_export ($file, $key);
|
|
|
|
return undef if ($ret eq undef);
|
|
return (&gst_util_read_boolean ($ret)? 1: 0);
|
|
}
|
|
|
|
# Same, but accepting a regexp and returning the value between the paren operator
|
|
sub gst_parse_sh_re
|
|
{
|
|
my ($file, $key, $re) = @_;
|
|
my $ret;
|
|
|
|
$ret = &gst_parse_sh ($file, $key);
|
|
|
|
$ret =~ /$re/i;
|
|
return $1;
|
|
}
|
|
|
|
|
|
# Search for $keyword in $file, delimited by $re (default " ") or EOL.
|
|
# If keyword exists, return 1, else 0.
|
|
sub gst_parse_kw
|
|
{
|
|
my ($file, $keyword, $re, $line_read_proc) = @_;
|
|
my $res;
|
|
|
|
&gst_report_enter ();
|
|
&gst_report ("parse_kw", $keyword, $file);
|
|
|
|
if (! -f "$gst_prefix/$file")
|
|
{
|
|
&gst_report_enter ();
|
|
&gst_report ("file_open_read_failed", $file);
|
|
&gst_report_leave ();
|
|
&gst_report_leave ();
|
|
return undef;
|
|
}
|
|
|
|
$re = " " if $re eq undef;
|
|
$res = &gst_parse_split_ref ($file, $keyword, $re, 0, $line_read_proc);
|
|
|
|
&gst_report_leave ();
|
|
return 0 if $res == -1;
|
|
return 1;
|
|
}
|
|
|
|
# A file containing the desired value in its first line. (ie /etc/hostname)
|
|
sub gst_parse_line_first
|
|
{
|
|
my ($file) = @_;
|
|
my ($fd, $res);
|
|
|
|
&gst_report_enter ();
|
|
&gst_report ("parse_line_first", $file);
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
&gst_report_leave ();
|
|
|
|
return undef if !$fd;
|
|
|
|
chomp ($res = <$fd>);
|
|
&gst_file_close ($fd);
|
|
return $res;
|
|
}
|
|
|
|
# parse a chat file, searching for an entry that matches $re.
|
|
# $re must have one paren operator (ie "^atd[^0-9]*([0-9, -]+)").
|
|
sub gst_parse_chat
|
|
{
|
|
my ($file, $re) = @_;
|
|
my ($fd, $found);
|
|
|
|
&gst_report_enter ();
|
|
&gst_report ("parse_chat", $file);
|
|
$fd = &gst_file_open_read_from_names ("$file");
|
|
&gst_report_leave ();
|
|
return undef if !$fd;
|
|
|
|
while (<$fd>)
|
|
{
|
|
# We'll be emptying $_ as we "scan".
|
|
chomp;
|
|
while ($_ ne "")
|
|
{
|
|
# If it uses quotes. FIXME: Assuming they surround the whole string.
|
|
if (/^\'/)
|
|
{
|
|
s/\'([^\']*)\' ?//;
|
|
$found = $1;
|
|
}
|
|
else
|
|
{
|
|
s/([^ \t]*) ?//;
|
|
$found = $1;
|
|
}
|
|
|
|
# If it looks like what we're looking for, return what matched the parens.
|
|
if ($found =~ /$re/i)
|
|
{
|
|
&gst_file_close ($fd);
|
|
return $1;
|
|
}
|
|
}
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
# Oops: not found.
|
|
return undef;
|
|
}
|
|
|
|
# Clean an ini line of comments and leading or
|
|
# trailing spaces.
|
|
sub gst_parse_ini_line_clean
|
|
{
|
|
$_ = $_[0];
|
|
|
|
chomp;
|
|
s/\#.*//;
|
|
s/;.*//;
|
|
s/^[ \t]+//;
|
|
s/[ \t]+$//;
|
|
|
|
return $_;
|
|
}
|
|
|
|
# Read an ini line, which may have to be joined
|
|
# with the next one if it ends with '\'.
|
|
sub gst_parse_ini_line_read
|
|
{
|
|
my $fd = $_[0];
|
|
my $l;
|
|
|
|
$l = <$fd>;
|
|
return -1 if ($l eq undef);
|
|
|
|
$l = &gst_parse_ini_line_clean ($l);
|
|
while ($l =~ /\\$/)
|
|
{
|
|
$l =~ s/\\$//;
|
|
$l .= &gst_parse_ini_line_clean (scalar <$fd>);
|
|
}
|
|
|
|
return \$l;
|
|
}
|
|
|
|
# Return an array of all found sections in $file.
|
|
sub gst_parse_ini_sections
|
|
{
|
|
my ($file) = @_;
|
|
my (@sections, $line);
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
|
|
while (($line = &gst_parse_ini_line_read ($fd)) != -1)
|
|
{
|
|
$_ = $$line;
|
|
next if (/^$/);
|
|
push @sections, $1 if (/\[([^\]]+)\]/i);
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
|
|
return @sections;
|
|
}
|
|
|
|
# Get the value of a $var in a $section from $file.
|
|
sub gst_parse_ini
|
|
{
|
|
my ($file, $section, $var) = @_;
|
|
my ($fd, $res, $line);
|
|
my $found_section_flag = 0;
|
|
|
|
&gst_report_enter ();
|
|
&gst_report ("parse_ini", $var, $file, $section);
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
&gst_report_leave ();
|
|
$res = undef;
|
|
|
|
while (($line = &gst_parse_ini_line_read ($fd)) != -1)
|
|
{
|
|
$_ = $$line;
|
|
next if (/^$/);
|
|
|
|
if (/\[$section\]/i)
|
|
{
|
|
$found_section_flag = 1;
|
|
next;
|
|
}
|
|
|
|
if ($found_section_flag)
|
|
{
|
|
if (/^$var[ \t]*=/i)
|
|
{
|
|
s/^$var[ \t]*=[ \t]*//i;
|
|
$res = $_;
|
|
last;
|
|
}
|
|
elsif (/\[\S+\]/i)
|
|
{
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
|
|
return $res;
|
|
}
|
|
|
|
# Same, but treat value as bool and return 1/0.
|
|
sub gst_parse_ini_bool
|
|
{
|
|
my ($file, $section, $var) = @_;
|
|
my $ret;
|
|
|
|
$ret = &gst_parse_ini ($file, $section, $var);
|
|
|
|
return undef if ($ret eq undef);
|
|
return (&gst_util_read_boolean ($ret)? 1: 0);
|
|
}
|
|
|
|
sub gst_parse_cap_line_clean
|
|
{
|
|
$_ = $_[0];
|
|
|
|
chomp;
|
|
s/^[ \t]*\#.*//;
|
|
s/;.*//;
|
|
s/^[ \t]+//;
|
|
s/[ \t]+$//;
|
|
|
|
return $_;
|
|
}
|
|
|
|
sub gst_parse_cap_line_read
|
|
{
|
|
my $fd = $_[0];
|
|
my $l;
|
|
|
|
$l = <$fd>;
|
|
return -1 if ($l eq undef);
|
|
|
|
$l = &gst_parse_cap_line_clean ($l);
|
|
while ($l =~ /\\$/)
|
|
{
|
|
$l =~ s/\\$//;
|
|
$l .= &gst_parse_cap_line_clean (scalar <$fd>);
|
|
}
|
|
|
|
return \$l;
|
|
}
|
|
|
|
sub gst_parse_cap_sections
|
|
{
|
|
my ($file) = @_;
|
|
my (@sections, $line);
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
|
|
while (($line = &gst_parse_cap_line_read ($fd)) != -1)
|
|
{
|
|
$_ = $$line;
|
|
next if (/^$/);
|
|
push @sections, $1 if (/^([^:|]+)/i);
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
return @sections;
|
|
}
|
|
|
|
sub gst_parse_cap
|
|
{
|
|
my ($file, $section, $var) = @_;
|
|
my ($fd, $res, $line);
|
|
my $found_section_flag = 0;
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
$res = undef;
|
|
|
|
while (($line = &gst_parse_ini_line_read ($fd)) != -1)
|
|
{
|
|
$_ = $$line;
|
|
next if (/^$/);
|
|
if (/^$section[:|]/i)
|
|
{
|
|
$found_section_flag = 1;
|
|
}
|
|
|
|
if ($found_section_flag && /:$var\#/i)
|
|
{
|
|
$_ =~ /:$var\#([^:]*)/;
|
|
$res = $1;
|
|
last;
|
|
}
|
|
# if ($found_section_flag && /:$var[#=]/i)
|
|
# {
|
|
# $_ =~ /:$var[#=]([^:]*)/;
|
|
# $res = $1;
|
|
# last;
|
|
# }
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
return $res;
|
|
}
|
|
|
|
sub gst_parse_cap_bool
|
|
{
|
|
my ($file, $section, $var) = @_;
|
|
my ($fd, $res, $line);
|
|
my $found_section_flag = 0;
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
$res = 0;
|
|
|
|
while (($line = &gst_parse_ini_line_read ($fd)) != -1)
|
|
{
|
|
$_ = $$line;
|
|
next if (/^$/);
|
|
if (/^$section[:|]/i)
|
|
{
|
|
$found_section_flag = 1;
|
|
}
|
|
|
|
if ($found_section_flag && /:$var[:\#=]/i)
|
|
{
|
|
$res = 1;
|
|
last;
|
|
}
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
return $res;
|
|
}
|
|
|
|
# Load a printcap file to buffer, join \ lines and split them back up into a
|
|
# 'one option, printtool comment or section name per line' format.
|
|
sub gst_parse_printcap_buffer_load
|
|
{
|
|
my ($file) = @_;
|
|
my ($inbuf, @outbuf);
|
|
|
|
$inbuf = &gst_file_buffer_load ($file);
|
|
&gst_file_buffer_join_lines ($inbuf);
|
|
|
|
for $i (@$inbuf)
|
|
{
|
|
my ($comment) = ("");
|
|
|
|
chomp $i;
|
|
$comment = $1 if $i =~ s/^([ \t]*[\#].*)//;
|
|
|
|
if ($i ne "")
|
|
{
|
|
my @line = split /:/, $i;
|
|
|
|
if ($i =~ /^[a-z0-9]+/i)
|
|
{
|
|
push @outbuf, ($line [0] . ":\n");
|
|
shift @line;
|
|
}
|
|
|
|
for $elem (@line)
|
|
{
|
|
$elem =~ s/^[ \t]//;
|
|
$elem =~ s/[ \t]$//;
|
|
if ($elem ne "")
|
|
{
|
|
push @outbuf, ("\t:$elem:\n");
|
|
}
|
|
}
|
|
}
|
|
elsif ($comment ne "")
|
|
{
|
|
push @outbuf, ($comment . "\n");
|
|
}
|
|
else
|
|
{
|
|
push @outbuf, "\n";
|
|
}
|
|
}
|
|
|
|
return \@outbuf;
|
|
}
|
|
|
|
# Find next printer definition, returning (printtool-comment-lineno, stanza-name-lineno).
|
|
sub gst_parse_printcap_get_next_stanza
|
|
{
|
|
my ($buf, $line_no) = @_;
|
|
my ($last_printtool_line) = (-1);
|
|
|
|
while ($line_no <= $#$buf)
|
|
{
|
|
if ($$buf [$line_no] =~ /^\#\#PRINTTOOL3\#\#/)
|
|
{
|
|
$last_printtool_line = $line_no;
|
|
}
|
|
elsif ($$buf [$line_no] =~ /^[a-z0-9]+/i)
|
|
{
|
|
return ($last_printtool_line, $line_no);
|
|
}
|
|
|
|
$line_no++;
|
|
}
|
|
|
|
return (-1, -1);
|
|
}
|
|
|
|
# Find next printer option.
|
|
sub gst_parse_printcap_get_next_option
|
|
{
|
|
my ($buf, $line_no) = @_;
|
|
|
|
while ($line_no <= $#$buf)
|
|
{
|
|
if ($$buf [$line_no] =~ /^\#\#PRINTTOOL3\#\#/ ||
|
|
$$buf [$line_no] =~ /^[a-z0-9]+/i)
|
|
{
|
|
last;
|
|
}
|
|
|
|
if ($$buf [$line_no] =~ /^\t:/)
|
|
{
|
|
return $line_no;
|
|
}
|
|
|
|
$line_no++;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
sub gst_parse_printcap_parse_stanza
|
|
{
|
|
my ($stanza) = @_;
|
|
my ($key);
|
|
|
|
$key = $1 if $stanza =~ /^([a-z0-9]+)/i;
|
|
return $key;
|
|
}
|
|
|
|
sub gst_parse_printcap_parse_option
|
|
{
|
|
my ($option) = @_;
|
|
my ($key, $value);
|
|
|
|
$key = $1 if $option =~ /^\t:([a-z0-9]+)/i;
|
|
$value = $1 if $option =~ /^\t:[a-z0-9]+[\#=]([a-z0-9\/_-]*)/i;
|
|
return ($key, $value);
|
|
}
|
|
|
|
# Locate stanza line for $printer in $buf, starting at $line_no.
|
|
sub gst_parse_printcap_find_stanza
|
|
{
|
|
my ($buf, $line_no, $printer) = @_;
|
|
my ($printtool_line_no, $found_printer);
|
|
|
|
while ((($printtool_line_no, $line_no) = &gst_parse_printcap_get_next_stanza ($buf, $line_no)))
|
|
{
|
|
if ($line_no == -1) { last; }
|
|
|
|
$found_printer = &gst_parse_printcap_parse_stanza ($$buf [$line_no]);
|
|
return ($printtool_line_no, $line_no) if ($found_printer eq $printer);
|
|
$line_no++;
|
|
}
|
|
|
|
return (-1, -1);
|
|
}
|
|
|
|
# Search buffer for option with key $key, starting
|
|
# at $line_no position. Return line number, or -1 if not found.
|
|
sub gst_parse_printcap_find_option
|
|
{
|
|
my ($buf, $line_no, $key) = @_;
|
|
my $found_key;
|
|
|
|
while (($line_no = &gst_parse_printcap_get_next_option ($buf, $line_no)) != -1)
|
|
{
|
|
($found_key) = &gst_parse_printcap_parse_option ($$buf [$line_no]);
|
|
return $line_no if ($found_key eq $key);
|
|
$line_no++;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
# High-level API.
|
|
sub gst_parse_printcap
|
|
{
|
|
my ($file, $section, $var) = @_;
|
|
my ($printtool_line_no, $stanza_line_no, $option_line_no);
|
|
my ($buf);
|
|
my ($key, $value);
|
|
|
|
$buf = &gst_parse_printcap_buffer_load ($file);
|
|
|
|
($printtool_line_no, $stanza_line_no) = &gst_parse_printcap_find_stanza ($buf, 0, $section);
|
|
return undef if ($stanza_line_no == -1);
|
|
|
|
$option_line_no = &gst_parse_printcap_find_option ($buf, $stanza_line_no + 1, $var);
|
|
return undef if ($option_line_no == -1);
|
|
|
|
($key, $value) = &gst_parse_printcap_parse_option ($$buf [$option_line_no]);
|
|
return $value;
|
|
}
|
|
|
|
# High-level API.
|
|
sub gst_parse_printcap_bool
|
|
{
|
|
my ($file, $section, $var) = @_;
|
|
my ($printtool_line_no, $stanza_line_no, $option_line_no);
|
|
my ($buf);
|
|
my ($key, $value);
|
|
|
|
$buf = &gst_parse_printcap_buffer_load ($file);
|
|
|
|
($printtool_line_no, $stanza_line_no) = &gst_parse_printcap_find_stanza ($buf, 0, $section);
|
|
return 0 if ($stanza_line_no == -1);
|
|
|
|
$option_line_no = &gst_parse_printcap_find_option ($buf, $stanza_line_no + 1, $var);
|
|
return 0 if ($option_line_no == -1);
|
|
|
|
return 1;
|
|
}
|
|
|
|
# Debian interfaces(5) states that files starting with # are comments.
|
|
# Also, leading and trailing spaces are ignored.
|
|
sub gst_parse_interfaces_line_clean
|
|
{
|
|
$_ = $_[0];
|
|
|
|
chomp;
|
|
s/^[ \t]+//;
|
|
s/^\#.*//;
|
|
s/[ \t]+$//;
|
|
|
|
return $_;
|
|
}
|
|
|
|
# interfaces(5) also states that \ line continuation is possible.
|
|
sub gst_parse_interfaces_line_read
|
|
{
|
|
my $fd = $_[0];
|
|
my $l;
|
|
|
|
$l = <$fd>;
|
|
return -1 if ($l eq undef);
|
|
|
|
$l = &gst_parse_interfaces_line_clean ($l);
|
|
while ($l =~ /\\$/)
|
|
{
|
|
$l =~ s/\\$//;
|
|
$l .= &gst_parse_interfaces_line_clean (scalar <$fd>);
|
|
}
|
|
|
|
return \$l;
|
|
}
|
|
|
|
# Read lines until a stanza, a line starting with $stanza_type is found.
|
|
# Return ref to an array with the stanza params split.
|
|
sub gst_parse_interfaces_get_next_stanza
|
|
{
|
|
my ($fd, $stanza_type) = @_;
|
|
my $line;
|
|
|
|
while (($line = &gst_parse_interfaces_line_read ($fd)) != -1)
|
|
{
|
|
$_ = $$line;
|
|
if (/^$stanza_type[ \t]+[^ \t]/)
|
|
{
|
|
s/^$stanza_type[ \t]+//;
|
|
return [ split ("[ \t]+", $_) ];
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
# Read lines until a line not recognized as a stanza is
|
|
# found, and split in a "tuple" of key/value.
|
|
sub gst_parse_interfaces_get_next_option
|
|
{
|
|
my $fd = $_[0];
|
|
my $line;
|
|
|
|
while (($line = &gst_parse_interfaces_line_read ($fd)) != -1)
|
|
{
|
|
$_ = $$line;
|
|
next if /^$/;
|
|
|
|
return [ split ("[ \t]+", $_, 2) ] if (!/^iface[ \t]/);
|
|
return -1;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
# Get all stanzas from file. Return array.
|
|
sub gst_parse_interfaces_stanzas
|
|
{
|
|
my ($file, $stanza_type) = @_;
|
|
my ($fd, @res);
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
$res = undef;
|
|
|
|
while (($_ = &gst_parse_interfaces_get_next_stanza ($fd, $stanza_type)) != -1)
|
|
{
|
|
push @res, $_;
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
|
|
return @res;
|
|
}
|
|
|
|
# Find stanza for $iface in $file, and return
|
|
# tuple for option with $key. Return -1 if unexisting.
|
|
sub gst_parse_interfaces_option_tuple
|
|
{
|
|
my ($file, $iface, $key, $all) = @_;
|
|
my ($fd, @res);
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
|
|
while (($stanza = &gst_parse_interfaces_get_next_stanza ($fd, "iface")) != -1)
|
|
{
|
|
if ($$stanza[0] eq $iface)
|
|
{
|
|
while (($tuple = &gst_parse_interfaces_get_next_option ($fd)) != -1)
|
|
{
|
|
if ($$tuple[0] =~ /$key/)
|
|
{
|
|
return $tuple if !$all;
|
|
push @res, $tuple;
|
|
}
|
|
}
|
|
|
|
return -1 if !$all;
|
|
}
|
|
}
|
|
|
|
return @res if $all;
|
|
return -1;
|
|
}
|
|
|
|
# Go get option $kw for $iface stanza. If found,
|
|
# return 1 (true), else, false.
|
|
sub gst_parse_interfaces_option_kw
|
|
{
|
|
my ($file, $iface, $kw) = @_;
|
|
my $tuple;
|
|
|
|
&gst_report_enter ();
|
|
&gst_report ("parse_ifaces_kw", $kw, $file);
|
|
$tuple = &gst_parse_interfaces_option_tuple ($file, $iface, $kw);
|
|
&gst_report_leave ();
|
|
|
|
if ($tuple != -1)
|
|
{
|
|
&gst_report ("parse_ifaces_kw_strange", $iface, $file) if ($$tuple[1] ne "");
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
# For such keywords as noauto, whose existence means
|
|
# a false value.
|
|
sub gst_parse_interfaces_option_kw_not
|
|
{
|
|
my ($file, $iface, $kw) = @_;
|
|
|
|
return &gst_parse_interfaces_option_kw ($file, $iface, $kw)? 0 : 1;
|
|
}
|
|
|
|
# Go get option $key for $iface in $file and return value.
|
|
sub gst_parse_interfaces_option_str
|
|
{
|
|
my ($file, $iface, $key) = @_;
|
|
my $tuple;
|
|
|
|
&gst_report_enter ();
|
|
&gst_report ("parse_ifaces_str", $kw, $file);
|
|
$tuple = &gst_parse_interfaces_option_tuple ($file, $iface, $key);
|
|
&gst_report_leave ();
|
|
|
|
if ($tuple != -1)
|
|
{
|
|
return $$tuple[1];
|
|
}
|
|
|
|
return undef;
|
|
}
|
|
|
|
|
|
# Implementing pump(8) pump.conf file format parser.
|
|
# May be useful for dhcpd too.
|
|
sub gst_parse_pump_get_next_option
|
|
{
|
|
my ($fd) = @_;
|
|
my $line;
|
|
|
|
while (($line = &gst_parse_interfaces_line_read ($fd)) != -1)
|
|
{
|
|
$line = $$line;
|
|
if ($line ne "")
|
|
{
|
|
return [ split ("[ \t]+", $line, 2) ];
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
sub gst_parse_pump_get_device
|
|
{
|
|
my ($fd, $iface) = @_;
|
|
my ($opt);
|
|
|
|
while (($opt = &gst_parse_pump_get_next_option ($fd)) != -1)
|
|
{
|
|
if ($$opt[0] eq "device")
|
|
{
|
|
$$opt[1] =~ s/[ \t]*\{//;
|
|
return 1 if $$opt[1] eq $iface;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
sub gst_parse_pump_get_iface_option_ref
|
|
{
|
|
my ($file, $iface, $key) = @_;
|
|
my ($fd, $opt, $ret);
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
|
|
if (&gst_parse_pump_get_device ($fd, $iface))
|
|
{
|
|
while (($opt = &gst_parse_pump_get_next_option ($fd)) != -1)
|
|
{
|
|
if ($$opt[0] eq $key)
|
|
{
|
|
$ret = &gst_parse_shell_unescape ($$opt[1]);
|
|
return \$ret;
|
|
}
|
|
|
|
return -1 if ($$opt[0] eq "}");
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
sub gst_parse_pump_get_iface_kw
|
|
{
|
|
my ($file, $iface, $key) = @_;
|
|
my ($ret);
|
|
|
|
return 1 if &gst_parse_pump_get_iface_option_ref ($file, $iface, $key) != -1;
|
|
return 0;
|
|
}
|
|
|
|
sub gst_parse_pump_get_iface_kw_not
|
|
{
|
|
my ($file, $iface, $key) = @_;
|
|
|
|
return 0 if &gst_parse_pump_get_iface_option_ref ($file, $iface, $key) != -1;
|
|
return 1;
|
|
}
|
|
|
|
# Read a variable out of an XML document. The varpath is the '/'-separated path to the
|
|
# XML tag. If the name of a property is passed, that property of the leaf tag is read,
|
|
# otherwise the tag's PCDATA.
|
|
sub gst_parse_xml
|
|
{
|
|
my ($file, $varpath, $property) = @_;
|
|
my ($model, $branch);
|
|
|
|
($model) = &gst_xml_model_scan ($file);
|
|
$branch = &gst_xml_model_find ($model, $varpath);
|
|
|
|
if ($branch)
|
|
{
|
|
return &gst_xml_model_get_attribute ($branch, $property) if $property ne "";
|
|
return &gst_xml_model_get_pcdata ($branch);
|
|
}
|
|
|
|
return undef;
|
|
}
|
|
|
|
sub gst_parse_xml_child_names
|
|
{
|
|
my ($file, $varpath) = @_;
|
|
my ($model, $branch, @children);
|
|
|
|
($model) = &gst_xml_model_scan ($file);
|
|
$branch = &gst_xml_model_find ($model, $varpath);
|
|
|
|
if (!$branch) { return @children; }
|
|
|
|
my @list = @$branch;
|
|
shift @list; # Attributes
|
|
|
|
while (@list)
|
|
{
|
|
if ($list [0] ne "__unparsed__" && $list [0] ne "0")
|
|
{
|
|
push @children, shift @list;
|
|
}
|
|
else
|
|
{
|
|
shift @list;
|
|
}
|
|
|
|
shift @list;
|
|
}
|
|
|
|
return @children;
|
|
}
|
|
|
|
sub gst_parse_alchemist
|
|
{
|
|
my ($file, $varpath) = @_;
|
|
|
|
$varpath = "/adm_context/datatree/" . $varpath;
|
|
return &gst_parse_xml ($file, $varpath, "VALUE");
|
|
}
|
|
|
|
sub gst_parse_alchemist_print
|
|
{
|
|
my ($file, $printer, $varpath) = @_;
|
|
|
|
$varpath = "printconf/print_queues/" . $printer . "/" . $varpath;
|
|
return &gst_parse_alchemist ($file, $varpath);
|
|
}
|
|
|
|
sub gst_parse_alchemist_print_option
|
|
{
|
|
my ($file, $printer, $name) = @_;
|
|
my ($varpath, $model, $branch, $fd, $options, $option);
|
|
|
|
($model) = &gst_xml_model_scan ($file);
|
|
$branch = &gst_xml_model_find ($model, "/adm_context/datatree/printconf/print_queues/" . $printer .
|
|
"/filter_data/foomatic_defaults");
|
|
|
|
return undef if (!$branch);
|
|
|
|
$options = &gst_xml_model_get_children ($branch);
|
|
|
|
foreach $o (@$options)
|
|
{
|
|
my $opt_node = &gst_xml_model_find ($o, "name");
|
|
next if (!$opt_node);
|
|
|
|
if (&gst_xml_model_get_attribute ($opt_node, "VALUE") eq $name)
|
|
{
|
|
$option = $o;
|
|
last;
|
|
}
|
|
}
|
|
|
|
return undef if (!$option);
|
|
|
|
my $node = &gst_xml_model_find ($option, "default");
|
|
return undef if (!$node);
|
|
|
|
return &gst_xml_model_get_attribute ($node, "VALUE");
|
|
}
|
|
|
|
# extracts hostname from a fully qualified hostname
|
|
# contained in a file
|
|
sub gst_parse_fq_hostname
|
|
{
|
|
my ($file) = @_;
|
|
my ($ret);
|
|
|
|
$ret = &gst_parse_line_first ($file);
|
|
$ret =~ s/\..*//; #remove domain
|
|
|
|
return $ret;
|
|
}
|
|
|
|
# extracts domain from a fully qualified hostname
|
|
# contained in a file
|
|
sub gst_parse_fq_domain
|
|
{
|
|
my ($file) = @_;
|
|
my ($ret);
|
|
|
|
$ret = &gst_parse_line_first ($file);
|
|
$ret =~ s/^[^\.]*\.//;
|
|
|
|
return $ret;
|
|
}
|
|
|
|
sub gst_parse_rcinet1conf
|
|
{
|
|
my ($file, $iface, $kw) = @_;
|
|
my ($line);
|
|
|
|
$iface =~ s/eth//;
|
|
|
|
#we must double escape those []
|
|
$line = "$kw\\[$iface\\]";
|
|
|
|
return &gst_parse_sh ($file, $line);
|
|
}
|
|
|
|
sub gst_parse_rcinet1conf_bool
|
|
{
|
|
my ($file, $iface, $kw) = @_;
|
|
my ($ret);
|
|
|
|
$ret = &gst_parse_rcinet1conf ($file, $iface, $kw);
|
|
|
|
return undef if ($ret eq undef);
|
|
return (&gst_util_read_boolean ($ret)? 1: 0);
|
|
}
|
|
|
|
sub gst_parse_wireless_opts
|
|
{
|
|
my ($file, $iface, $proc, $kw) = @_;
|
|
my $ifaces = &$proc ();
|
|
my $found = 0;
|
|
my $search = 1;
|
|
my $val = "";
|
|
my $fd;
|
|
|
|
foreach $i (@$ifaces)
|
|
{
|
|
$found = 1 if ($iface eq $i);
|
|
}
|
|
|
|
return undef if (!$found);
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
while (<$fd>)
|
|
{
|
|
$line = $_;
|
|
|
|
if ($line =~ /^case/)
|
|
{
|
|
# we don't want to search inside the case
|
|
$search = 0;
|
|
}
|
|
elsif ($line =~ /^esac/)
|
|
{
|
|
# continue searching
|
|
$search = 1;
|
|
}
|
|
elsif (($line =~ /^[ \t]*$kw/ ) && ($search))
|
|
{
|
|
$line =~ s/.*=//;
|
|
|
|
if ($line =~ /"(.*)"/)
|
|
{
|
|
$line = $1;
|
|
}
|
|
|
|
$val = $line;
|
|
}
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
return $val;
|
|
}
|
|
|
|
# function for parsing /etc/start_if.$iface files in FreeBSD
|
|
sub gst_parse_startif
|
|
{
|
|
my ($file, $regex) = @_;
|
|
my ($fd, $line, $val);
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
$val = undef;
|
|
|
|
return undef if ($fd eq undef);
|
|
|
|
while (<$fd>)
|
|
{
|
|
chomp;
|
|
|
|
# ignore comments
|
|
next if (/^\#/);
|
|
|
|
if (/$regex/)
|
|
{
|
|
$val = $1;
|
|
}
|
|
}
|
|
|
|
# remove double quote
|
|
if ($val =~ /\"(.*)\"/)
|
|
{
|
|
$val = $1;
|
|
}
|
|
|
|
return $val;
|
|
}
|
|
|
|
# functions for parsing /etc/ppp/ppp.conf sections in FreeBSD
|
|
sub gst_parse_pppconf_find_next_stanza
|
|
{
|
|
my ($buff, $line_no) = @_;
|
|
|
|
$line_no = 0 if ($line_no eq undef);
|
|
|
|
while ($$buff[$line_no] ne undef)
|
|
{
|
|
if ($$buff[$line_no] !~ /^[\#\n]/)
|
|
{
|
|
return $line_no if ($$buff[$line_no] =~ /^[^ \t]+/);
|
|
}
|
|
|
|
$line_no++;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
sub gst_parse_pppconf_find_stanza
|
|
{
|
|
my ($buff, $section) = @_;
|
|
my ($line_no) = 0;
|
|
|
|
while (($line_no = &gst_parse_pppconf_find_next_stanza ($buff, $line_no)) != -1)
|
|
{
|
|
return $line_no if ($$buff[$line_no] =~ /^$section\:/);
|
|
$line_no++;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
sub gst_parse_pppconf_common
|
|
{
|
|
my ($file, $section, $key) = @_;
|
|
my ($fd, $val);
|
|
|
|
$fd = &gst_file_open_read_from_names ($file);
|
|
return undef if ($fd eq undef);
|
|
|
|
$val = undef;
|
|
|
|
# First of all, we must find the line where the section begins
|
|
while (<$fd>)
|
|
{
|
|
chomp;
|
|
last if (/^$section\:[ \t]*/);
|
|
}
|
|
|
|
while (<$fd>)
|
|
{
|
|
chomp;
|
|
|
|
# read until the next section arrives
|
|
last if (/^[^ \t]/);
|
|
|
|
next if (/^\#/);
|
|
|
|
if (/^[ \t]+(add|set|enable|disable)[ \t]+$key/)
|
|
{
|
|
$val = $_;
|
|
last;
|
|
}
|
|
}
|
|
|
|
# this is done because commands can be multiline
|
|
while (<$fd>)
|
|
{
|
|
last if (/^[^ \t]/);
|
|
last if ($val !~ /\\$/);
|
|
|
|
s/^[ \t]*/ /;
|
|
$val =~ s/\\$//;
|
|
$val .= $_;
|
|
}
|
|
|
|
&gst_file_close ($fd);
|
|
|
|
if ($val eq undef)
|
|
{
|
|
return undef if ($section eq "default");
|
|
return &gst_parse_pppconf_common ($file, "default", $key);
|
|
}
|
|
else
|
|
{
|
|
$val =~ s/\#[^\#]*$//;
|
|
$val =~ s/[ \t]*$//;
|
|
$val =~ s/^[ \t]*//;
|
|
return $val;
|
|
}
|
|
}
|
|
|
|
sub gst_parse_pppconf
|
|
{
|
|
my ($file, $section, $key) = @_;
|
|
my ($val);
|
|
|
|
$val = &gst_parse_pppconf_common ($file, $section, $key);
|
|
|
|
if ($val =~ /$key[ \t]+(.+)/)
|
|
{
|
|
return $1;
|
|
}
|
|
}
|
|
|
|
sub gst_parse_pppconf_bool
|
|
{
|
|
my ($file, $section, $key) = @_;
|
|
my ($val);
|
|
|
|
$val = &gst_parse_pppconf_common ($file, $section, $key);
|
|
|
|
return 1 if ($val ne undef);
|
|
return 0;
|
|
}
|
|
|
|
sub gst_parse_pppconf_re
|
|
{
|
|
my ($file, $section, $key, $re) = @_;
|
|
my ($val);
|
|
|
|
$val = &gst_parse_pppconf_common ($file, $section, $key);
|
|
|
|
if ($val =~ /$re/i)
|
|
{
|
|
return $1;
|
|
}
|
|
}
|
|
|
|
sub gst_parse_confd_net
|
|
{
|
|
my ($file, $key) = @_;
|
|
my ($str, $contents, $i);
|
|
|
|
$contents = &gst_file_buffer_load ($file);
|
|
|
|
for ($i = 0; $i <= scalar (@$contents); $i++)
|
|
{
|
|
# search for key
|
|
if ($$contents[$i] =~ /^$key[ \t]*=[ \t]*\(/)
|
|
{
|
|
# contents can be multiline,
|
|
# just get the first value
|
|
do {
|
|
$$contents[$i] =~ /\"([^\"]*)\"/;
|
|
$str = $1;
|
|
$i++;
|
|
} while (!$str);
|
|
}
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
sub gst_parse_confd_net_re
|
|
{
|
|
my ($file, $key, $re) = @_;
|
|
my ($str);
|
|
|
|
$str = &gst_parse_confd_net ($file, $key);
|
|
|
|
if ($str =~ /$re/i)
|
|
{
|
|
return $1;
|
|
}
|
|
}
|