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-rw-r--r--knetworkconf/backends/parse.pl.in1828
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diff --git a/knetworkconf/backends/parse.pl.in b/knetworkconf/backends/parse.pl.in
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--- a/knetworkconf/backends/parse.pl.in
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-#!/usr/bin/env perl
-#-*- Mode: perl; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
-
-# parse.pl: Common parsing stuff for the ximian-setup-tools backends.
-#
-# Copyright (C) 2000-2001 Ximian, Inc.
-#
-# Authors: Hans Petter Jansson <hpj@ximian.com>
-# Arturo Espinosa <arturo@ximian.com>
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU Library General Public License as published
-# by the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Library General Public License for more details.
-#
-# You should have received a copy of the GNU Library General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
-
-$SCRIPTSDIR = "@scriptsdir@";
-if ($SCRIPTSDIR =~ /^@scriptsdir[@]/){
-
- $SCRIPTSDIR = ".";
- $DOTIN = ".in";
-}
-
-require "$SCRIPTSDIR/util.pl$DOTIN";
-require "$SCRIPTSDIR/file.pl$DOTIN";
-require "$SCRIPTSDIR/debug.pl$DOTIN";
-
-
-# The concept of keyword (kw) here is a key, normaly in its own line, whose
-# boolean representation is its own existence.
-
-# Every final parsing function to be used by a table must handle one key
-# at a time, but maybe parse several values from there and return a
-# ref to array or hash.
-#
-# Always return a scalar. If you need to return an array or a hash,
-# return a ref to it.
-
-# First some helper functions for the whole process.
-# Expand substrings of the form #$substr# to the $value in
-# the string or recursively in the array $strarr.
-
-sub gst_parse_expand
-{
- my ($strarr, $substr, $value) = @_;
-
- if (ref $strarr eq "ARRAY")
- {
- my ($i);
-
- $strarr = [ @$strarr ];
- foreach $i (@$strarr)
- {
- $i = &gst_parse_expand ($i, $substr, $value);
- }
-
- return $strarr;
- }
-
- $strarr =~ s/\#$substr\#/$value/;
- return $strarr;
-}
-
-sub gst_parse_replace_hash_values
-{
- my ($cp, $hash) = @_;
- my ($j, $replace_key, $value);
-
- foreach $j (@$cp)
- {
- while ($j =~ /%([^%]*)%/)
- {
- $replace_key = $1;
- if (exists $$hash{$replace_key})
- {
- $value = $$hash{$replace_key};
- if (ref $value)
- {
- $j = $value;
- }
- else
- {
- $j =~ s/%$replace_key%/$value/g;
- }
- }
- else
- {
- &gst_debug_print_line ("Warning: gst_parse_replace_hash_values: key $replace_key doesn't exist.");
- return 0;
- }
- }
- }
-
- return 1;
-}
-
-sub gst_parse_replace_files
-{
- my ($values, $fn_hash) = @_;
- my @ret;
-
- return () if $values eq undef;
- $values = [$values] if !ref $values;
-
- foreach $i (@$values)
- {
- if (exists $$fn_hash{$i})
- {
- push @ret, $$fn_hash{$i};
- }
- else
- {
- push @ret, $i;
- }
- }
-
- return @ret;
-}
-
-# Additional abstraction: parse table entries can have
-# arrays inside. The parsing proc will be ran with every
-# combination that the arrays provide. Ex:
-# ["user", \&gst_parse_foo, [0, 1], [2, 3] ] will parse
-# using the combinatory of [0, 1]x[2, 3] until a result
-# ne undef is given. Check RedHat 7.2's network parse table
-# for further enlightenment.
-sub gst_parse_run_entry
-{
- my ($hash, $key, $proc, $cp) = @_;
- my ($ncp, $i, $j, $res);
-
- $ncp = [@$cp];
- for ($i = 0; $i < scalar (@$cp); $i ++)
- {
- if (ref $$cp[$i] eq "ARRAY")
- {
- foreach $j (@{$$cp[$i]})
- {
- $$ncp[$i] = $j;
- $res = &gst_parse_run_entry ($hash, $key, $proc, $ncp);
- return $res if $res ne undef;
- }
- return undef;
- }
- }
-
- # OK, the given entry didn't have any array refs in it...
-
- return undef if (!&gst_parse_replace_hash_values ($cp, $hash));
-
- &gst_report_enter ();
- &gst_report ("parse_table", "$key");
- &gst_report_leave ();
-
- $$hash{$key} = &$proc (@$cp);
- return $$hash{$key};
-}
-
-# OK, this is the good stuff:
-
-# gst_parse_from_table takes a file mapping and a parse table.
-#
-# The functions in the replace tables, most of which are coded in
-# this file, receive the mapped files of the first argument, and then
-# a set of values.
-
-# The value the parse function returns is set into a hash,
-# using as key the first item of the parse table entry. This is done
-# only if the $hash{$key} is empty, which allows us to try with
-# several parse methods to try to get a value, where our parse functions
-# can return undef if they failed to get the requested value.
-#
-# A ref to the hash with all the fetched values is returned.
-sub gst_parse_from_table
-{
- my ($fn, $table) = @_;
- my %hash;
- my ($key, $proc, @param);
- my ($i, @cp, @files);
-
- foreach $i (@$table)
- {
- @cp = @$i;
- $key = shift (@cp);
-
- if ($hash{$key} eq undef)
- {
- $proc = shift (@cp);
- @files = &gst_parse_replace_files (shift (@cp), $fn);
-
- # Don't unshift the resulting files if none were given.
- unshift @cp, @files if (scalar @files) > 0;
-
- &gst_parse_run_entry (\%hash, $key, $proc, \@cp);
- }
- }
-
- foreach $i (keys (%hash))
- {
- delete $hash{$i} if ($hash{$i} eq undef);
- }
-
- return \%hash;
-}
-
-# Just return the passed values. If there's just
-# one value, the value. If more, a reference to an
-# array with the values.
-sub gst_parse_trivial
-{
- my (@res) = @_;
-
- &gst_report_enter ();
- &gst_report ("parse_trivial", "@res");
- &gst_report_leave ();
-
- return $res[0] if (scalar @res) <= 1;
- return \@res;
-}
-
-# Try to read a line from $fd and remove any leading or
-# trailing white spaces. Return ref to read $line or
-# -1 if eof.
-sub gst_parse_chomp_line_std
-{
- my ($fd) = @_;
- my $line;
-
- $line = <$fd>;
- return -1 if !$line;
-
- chomp $line;
- $line =~ s/^[ \t]+//;
- $line =~ s/[ \t]+$//;
-
- return \$line;
-}
-
-# Assuming $line is a line read from a shell file,
-# remove comments.
-sub gst_parse_process_sh_line
-{
- my ($line) = @_;
- my ($pline);
-
- # This will put escaped hashes out of danger.
- # But only inside valid quotes!
- while ($line =~ /([^\"\']*[\"\'][^\#\"\']*)(\#?)([^\"\']*[\"\'])/g)
- {
- $pline .= $1;
- $pline .= "__hash__" if ($2 ne undef);
- $pline .= $3;
- }
-
- # The line may not match the regexp above,
- $pline = $line if ($pline eq undef);
-
- $pline =~ s/\\\#/\\__hash__/g;
-
- # Nuke everything after a hash and bye bye trailing spaces.
- $pline =~ s/[ \t]*\#.*//;
-
- # Let escaped hashes come back home.
- $pline =~ s/__hash__/\#/g;
-
- return $pline;
-}
-
-# Same as gst_parse_chomp_line_std, but apply
-# the sh line processing before returning.
-# -1 if eof, ref to read $line if success.
-sub gst_parse_chomp_line_hash_comment
-{
- my ($fd) = @_;
- my $line;
-
- $line = &gst_parse_chomp_line_std ($fd);
- return -1 if $line == -1;
-
- $line = &gst_parse_process_sh_line ($$line);
- return \$line;
-}
-
-# Get an sh line, and remove the export keyword, if any.
-sub gst_parse_chomp_line_sh_export
-{
- my ($fd) = @_;
- my $line;
-
- $line = &gst_parse_chomp_line_hash_comment ($fd);
- return -1 if $line == -1;
-
- $line = $$line;
-
- $line =~ s/^export //;
-
- return \$line;
-}
-
-# Parse a $file, wich is assumed to have a column-based format, with $re matching field separators
-# and one record per line. Search for $key, and return either a scalar with the first ocurrence,
-# or an array with all the found ocurrences.
-sub gst_parse_split_ref
-{
- my ($file, $key, $re, $all, $line_read_proc) = @_;
- my ($fd, @line, @res);
-
- &gst_report_enter ();
- &gst_report ("parse_split", $key, $file);
-
- $proc = $line_read_proc? $line_read_proc : \&gst_parse_chomp_line_std;
-
- $fd = &gst_file_open_read_from_names ($file);
- $all = 0 if !$fd;
-
- while (($line = &$proc ($fd)) != -1)
- {
- $line = $$line;
- next if $line eq "";
-
- @line = split ($re, $line, 2);
-
- if (shift (@line) =~ "^$key\$")
- {
- if ($all) {
- push @res, $line[0];
- }
- else
- {
- &gst_report_leave ();
- &gst_file_close ($fd);
- return \$line[0];
- }
- }
- }
-
- &gst_report_leave ();
- &gst_file_close ($fd);
- return \@res if ($all);
- return -1;
-}
-
-sub gst_parse_split
-{
- my $res;
-
- # Don't pass @_ like this anywhere. This is bad practice.
- $res = &gst_parse_split_ref (@_);
-
- return $$res if ref $res eq "SCALAR";
- return @$res if ref $res eq "ARRAY";
- return undef;
-}
-
-# This gives meaning to the $all flag of gst_parse_split, and returns a reference to the array, which
-# is what we want. (ie search a.com\nsearch b.com\nsearch c.com)
-sub gst_parse_split_all
-{
- my ($file, $key, $re, $line_read_proc) = @_;
- my @a;
-
- @a = &gst_parse_split ($file, $key, $re, 1, $line_read_proc);
-
- return \@a;
-}
-
-# Same, but use the hash_comment routine for line analysis.
-sub gst_parse_split_all_hash_comment
-{
- my ($file, $key, $re) = @_;
-
- return &gst_parse_split_all ($file, $key, $re, \&gst_parse_chomp_line_hash_comment);
-}
-
-# Make the elements of the resulting array unique.
-sub gst_parse_split_all_unique_hash_comment
-{
- my ($file, $key, $re) = @_;
- my ($arr, @res);
- my (%hash, $i);
-
- $arr = &gst_parse_split_all ($file, $key, $re, \&gst_parse_chomp_line_hash_comment);
-
- foreach $i (@$arr)
- {
- next if exists $hash{$i};
- $hash{$i} = 1;
- push @res, $i;
- }
-
- return \@res;
-}
-
-sub gst_parse_split_all_array_with_pos
-{
- my ($file, $key, $pos, $re, $sep, $line_read_proc) = @_;
- my ($arr, @s, @ret, $i);
-
- $arr = &gst_parse_split_all ($file, $key, $re, $line_read_proc);
-
- foreach $i (@$arr)
- {
- @s = split ($sep, $i);
- push @ret, @s[0];
- }
-
- return \@ret;
-}
-
-# Same, but for $all = 0. (ie nameserver 10.0.0.1)
-sub gst_parse_split_first_str
-{
- my ($file, $key, $re, $line_read_proc) = @_;
-
- return &gst_parse_split ($file, $key, $re, 0, $line_read_proc);
-}
-
-# Interpret the result as a boolean. (ie multi on)
-sub gst_parse_split_first_bool
-{
- my ($file, $key, $re, $line_read_proc) = @_;
- my $ret;
-
- $ret = &gst_parse_split_first_str ($file, $key, $re, $line_read_proc);
-
- return undef if ($ret eq undef);
- return (&gst_util_read_boolean ($ret)? 1: 0);
-}
-
-# After getting the first field, split the result with $sep matching separators. (ie order hosts,bind)
-sub gst_parse_split_first_array
-{
- my ($file, $key, $re, $sep, $line_read_proc) = @_;
- my @ret;
-
- @ret = split ($sep, &gst_parse_split ($file, $key, $re, 0, $line_read_proc));
-
- return \@ret;
-}
-
-sub gst_parse_split_first_array_pos
-{
- my ($file, $key, $pos, $re, $sep, $line_read_proc) = @_;
- my (@ret);
-
- @ret = split ($sep, &gst_parse_split ($file, $key, $re, 0, $line_read_proc));
- return $ret[$pos];
-}
-
-# Do an gst_parse_split_first_array and then make
-# the array elements unique. This is to fix broken
-# searchdomain entries in /etc/resolv.conf, for example.
-sub gst_parse_split_first_array_unique
-{
- my ($file, $key, $re, $sep, $line_read_proc) = @_;
- my (@arr, @res);
- my (%hash, $i);
-
- @arr = split ($sep, &gst_parse_split ($file, $key, $re, 0, $line_read_proc));
-
- foreach $i (@arr)
- {
- next if exists $hash{$i};
- $hash{$i} = 1;
- push @res, $i;
- }
-
- return \@res;
-}
-
-# For all keys in $file, sepparated from its values
-# by $key_re, sepparate its values using $value_re
-# and assign to a newly created hash. Use ONLY when
-# you don't know what keys you are going to parse
-# (i.e. /etc/hosts). Any other application will not
-# be very portable and should be avoided.
-sub gst_parse_split_hash
-{
- my ($file, $key_re, $value_re) = @_;
- my ($fd, @line, %res, $key);
-
- &gst_report_enter ();
- &gst_report ("parse_split_hash", $file);
-
- $fd = &gst_file_open_read_from_names ($file);
-
- while (<$fd>)
- {
- chomp;
- s/^[ \t]+//;
- s/[ \t]+$//;
- s/\#.*$//;
- next if (/^$/);
- @line = split ($key_re, $_, 2);
-
- $key = shift (@line);
- push @{$res{$key}}, split ($value_re, $line[0]);
- }
-
- &gst_file_close ($fd);
- &gst_report_leave ();
- return undef if (scalar keys (%res) == 0);
- return \%res;
-}
-
-# Same as above, but join lines that end with '\'.
-sub gst_parse_split_hash_with_continuation
-{
- my ($file, $key_re, $value_re) = @_;
- my ($fd, $l, @line, %res, $key);
-
- &gst_report_enter ();
- &gst_report ("parse_split_hash_cont", $file);
-
- $fd = &gst_file_open_read_from_names ($file);
-
- while (($l = &gst_parse_ini_line_read ($fd)) != -1)
- {
- $_ = $$l;
- chomp;
- s/^[ \t]+//;
- s/[ \t]+$//;
- s/\#.*$//;
- next if (/^$/);
- @line = split ($key_re, $_, 2);
-
- $key = shift (@line);
- $res{$key} = [ split ($value_re, $line[0]) ];
- }
-
- &gst_file_close ($fd);
- &gst_report_leave ();
- 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;
- }
-}