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tdeadmin/knetworkconf/backends/replace.pl.in

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#!/usr/bin/env perl
#-*- Mode: perl; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
# replace.pl: Common in-line replacing 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>
# Michael Vogt <mvo@debian.org> - Debian 2.[2|3] support.
# David Lee Ludwig <davidl@wpi.edu> - Debian 2.[2|3] support.
#
# 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/parse.pl$DOTIN";
# General rules: all replacing is in-line. Respect unsupported values, comments
# and as many spacing as possible.
# The concept of keyword (kw) here is a key, normaly in its own line, whose
# boolean representation is its own existence.
# A $re is a regular expression. In most functions here, regular expressions
# are converted to simple separators, by using gst_replace_regexp_to_separator.
# This makes it easier to convert a parse table into a replace table.
# Every final replacing function to be used by a table must handle one key
# at a time, but may replace several values from there.
#
# Return 0 for success, and -1 for failure.
#
# Most of these functions have a parsing counterpart. The convention is
# that parse becomes replace and split becomes join:
# gst_parse_split_first_str -> gst_replace_join_first_str
# Additional abstraction: replace table entries can have
# arrays inside. The replace proc will be ran with every
# combination that the arrays provide. Ex:
# ["user", \&gst_replace_foo, [0, 1], [2, 3] ] will replace
# using all possibilities in the combinatory of [0, 1]x[2, 3].
# Check RedHat 7.2's network replace table for further
# enlightenment.
sub gst_replace_run_entry
{
my ($values_hash, $key, $proc, $cp, $value) = @_;
my ($ncp, $i, $j, $res);
$ncp = [@$cp];
for ($i = 0; $i < scalar (@$cp); $i ++)
{
if (ref $$cp[$i] eq "ARRAY")
{
foreach $j (@{$$cp[$i]})
{
$$ncp[$i] = $j;
$res = -1 if &gst_replace_run_entry ($values_hash, $key, $proc, $ncp, $value);
}
return $res;
}
}
# OK, the given entry didn't have any array refs in it...
&gst_debug_print_line ("gst_replace_from_table: $key");
return -1 if (!&gst_parse_replace_hash_values ($ncp, $values_hash));
push (@$ncp, $$values_hash{$key}) unless $key eq "_always_";
$res = -1 if &$proc (@$ncp);
return $res;
}
# gst_replace_from_table takes a file mapping, a replace table, a hash
# of values, probably made from XML parsing, and whose keys are
# the same keys the table handles.
#
# Table entries whose keys are not present in the values_hash
# will not be processed. More than one entry may process the same key.
#
# 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 last argument is the value of the $values_hash
# for the corresponding key of the entry.
sub gst_replace_from_table
{
my ($fn, $table, $values_hash, $old_hash) = @_;
my ($key, $proc, @param);
my ($i, @cp, @files, $res);
$$fn{"OLD_HASH"} = $old_hash;
foreach $i (@$table)
{
@cp = @$i;
$key = shift (@cp);
$proc = shift (@cp);
@files = &gst_parse_replace_files (shift (@cp), $fn);
unshift @cp, @files if (scalar @files) > 0;
if ((exists $$values_hash{$key}) or ($key eq "_always_"))
{
$res = &gst_replace_run_entry ($values_hash, $key, $proc, \@cp, $$values_hash{$key});
}
elsif ((!exists $$values_hash{$key}) && (exists $$old_hash{$key}))
{
# we need to remove all the instances of the known variables that doesn't exist in the XML
$res = &gst_replace_run_entry ($values_hash, $key, $proc, \@cp, undef);
}
}
return $res;
}
# Wacky function that tries to create a field separator from a regular expression.
# Doesn't work with all possible regular expressions: just with the ones we are working with.
sub gst_replace_regexp_to_separator
{
$_ = $_[0];
s/\[([^^])([^\]])[^\]]*\]/$1/g;
s/\+//g;
s/\$//g;
s/[^\*]\*//g;
return $_;
}
sub is_array_ref
{
my $val;
return 1 if (ref ($val) eq "ARRAY");
return 0 if (ref ($val) eq undef);
&gst_debug_print_line ("is_array_ref: We shouldn't be here!");
return 0;
}
sub set_value
{
my ($key, $val, $re) = @_;
return $key . &gst_replace_regexp_to_separator ($re) . $val;
}
# Edit a $file, wich is assumed to have a column-based format, with $re matching field separators
# and one record per line. Search for lines with the corresponding $key.
# The last arguments can be any number of standard strings.
sub gst_replace_split
{
my ($file, $key, $re, @value) = @_;
my ($fd, @line, @res);
my ($buff, $i);
my ($pre_space, $post_comment);
my ($line_key, $val, $ret);
&gst_report_enter ();
&gst_report ("replace_split", $key, $file);
$buff = &gst_file_buffer_load ($file);
foreach $i (@$buff)
{
$pre_space = $post_comment = "";
chomp $i;
$pre_space = $1 if $i =~ s/^([ \t]+)//;
$post_comment = $1 if $i =~ s/([ \t]*\#.*)//;
if ($i ne "")
{
@line = split ($re, $i, 2);
$line_key = shift (@line);
# found the key?
if ($line_key eq $key)
{
shift (@value) while ($value[0] eq "" && (scalar @value) > 0);
if ((scalar @value) == 0)
{
$i = "";
next;
}
$val = shift (@value);
chomp $val;
$i = &set_value ($key, $val, $re);
}
}
$i = $pre_space . $i . $post_comment . "\n";
}
foreach $i (@value)
{
push (@$buff, &set_value ($key, $i, $re) . "\n") if ($i ne "");
}
&gst_file_buffer_clean ($buff);
$ret = &gst_file_buffer_save ($buff, $file);
&gst_report_leave ();
return $ret;
}
# Replace all key/values in file with those in @$value,
# deleting exceeding ones and appending those required.
sub gst_replace_join_all
{
my ($file, $key, $re, $value) = @_;
return &gst_replace_split ($file, $key, $re, @$value);
}
# Find first $key value and replace with $value. Append if not found.
sub gst_replace_join_first_str
{
my ($file, $key, $re, $value) = @_;
return &gst_replace_split ($file, $key, $re, $value);
}
# Treat value as a bool value, using val_off and val_on as corresponding
# boolean representations.
sub gst_replace_join_first_bool
{
my ($file, $key, $re, $val_on, $val_off, $value) = @_;
# Fixme: on and off should be a parameter.
$value = ($value == 1)? $val_on: $val_off;
return &gst_replace_split ($file, $key, $re, $value);
}
# Find first key in file, and set array join as value.
sub gst_replace_join_first_array
{
my ($file, $key, $re1, $re2, $value) = @_;
return &gst_replace_split ($file, $key, $re1, join (&gst_replace_regexp_to_separator ($re2), @$value));
}
# Escape $value in /bin/sh way, find/append key and set escaped value.
sub gst_replace_sh
{
my ($file, $key, $value) = @_;
my $ret;
$value = &gst_parse_shell_escape ($value);
&gst_report_enter ();
&gst_report ("replace_sh", $key, $file);
# This will expunge the whole var if the value is empty.
if ($value eq "")
{
$ret = &gst_replace_split ($file, $key, "[ \t]*=[ \t]*");
}
else
{
$ret = &gst_replace_split ($file, $key, "[ \t]*=[ \t]*", $value);
}
&gst_report_leave ();
return $ret;
}
# Escape $value in /bin/sh way, find/append key and set escaped value, make sure line har
sub gst_replace_sh_export
{
my ($file, $key, $value) = @_;
my $ret;
$value = &gst_parse_shell_escape ($value);
# This will expunge the whole var if the value is empty.
# FIXME: Just adding "export " works for the case I need, though it doesn't
# handle arbitraty whitespace. Something should be written to replace gst_replace_split()
# here.
if ($value eq "")
{
$ret = &gst_replace_split ($file, "export " . $key, "[ \t]*=[ \t]*");
}
else
{
$ret = &gst_replace_split ($file, "export " . $key, "[ \t]*=[ \t]*", $value);
}
return $ret;
}
# Treat value as a yes/no bool, replace in shell style.
# val_true and val_false have default yes/no values.
# use &gst_replace_sh_bool (file, key, value) if defaults are desired.
sub gst_replace_sh_bool
{
my ($file, $key, $val_true, $val_false, $value) = @_;
# default value magic.
if ($val_false eq undef)
{
$value = $val_true;
$val_true = undef;
}
$val_true = "yes" unless $val_true;
$val_false = "no" unless $val_false;
$value = ($value == 1)? $val_true: $val_false;
return &gst_replace_sh ($file, $key, $value);
}
# Treat value as a yes/no bool, replace in export... shell style.
sub gst_replace_sh_export_bool
{
my ($file, $key, $val_true, $val_false, $value) = @_;
# default value magic.
if ($val_false eq undef)
{
$value = $val_true;
$val_true = undef;
}
$val_true = "yes" unless $val_true;
$val_false = "no" unless $val_false;
$value = ($value == 1)? $val_true: $val_false;
return &gst_replace_sh_export ($file, $key, $value);
}
# Get a fully qualified hostname from a $key shell var in $file
# and set the hostname part. e.g.: suse70's /etc/rc.config's FQHOSTNAME.
sub gst_replace_sh_set_hostname
{
my ($file, $key, $value) = @_;
my ($domain);
$domain = &gst_parse_sh_get_domain ($file, $key);
return &gst_replace_sh ($file, $key, "$value.$domain");
}
# Get a fully qualified hostname from a $key shell var in $file
# and set the domain part. e.g.: suse70's /etc/rc.config's FQHOSTNAME.
sub gst_replace_sh_set_domain
{
my ($file, $key, $value) = @_;
my ($hostname);
$hostname = &gst_parse_sh_get_hostname ($file, $key);
return &gst_replace_sh ($file, $key, "$hostname.$value");
}
# Join the array pointed by $value with the corresponding $re separator
# and assign that to the $key shell variable in $file.
sub gst_replace_sh_join
{
my ($file, $key, $re, $value) = @_;
return &gst_replace_sh ($file, $key,
join (&gst_replace_regexp_to_separator ($re), @$value));
}
# replace a regexp with $value
sub gst_replace_sh_re
{
my ($file, $key, $re, $value) = @_;
my ($val);
$val = &gst_parse_sh ($file, $key);
if ($val =~ /$re/)
{
$val =~ s/$re/$value/;
}
else
{
$val .= $value;
}
$val = '"' . $val . '"' if ($val !~ /^\".*\"$/);
return &gst_replace_split ($file, $key, "[ \t]*=[ \t]*", $val)
}
# Quick trick to set a keyword $key in $file. (think /etc/lilo.conf keywords).
sub gst_replace_kw
{
my ($file, $key, $value) = @_;
my $ret;
&gst_report_enter ();
&gst_report ("replace_kw", $key, $file);
$ret = &gst_replace_split ($file, $key, "\$", ($value)? "\n" : "");
&gst_report_leave ();
return $ret;
}
# The kind of $file whose $value is its first line contents.
# (/etc/hostname)
sub gst_replace_line_first
{
my ($file, $value) = @_;
my $fd;
&gst_report_enter ();
&gst_report ("replace_line_first", $file);
$fd = &gst_file_open_write_from_names ($file);
&gst_report_leave ();
return -1 if !$fd;
print $fd "$value\n";
&gst_file_close ($fd);
return 0;
}
# For every key in %$value, replace/append the corresponding key/value pair.
# The separator for $re1
sub gst_replace_join_hash
{
my ($file, $re1, $re2, $value) = @_;
my ($i, $res, $tmp, $val);
my ($oldhash, %merge);
$oldhash = &gst_parse_split_hash ($file, $re1, $re2);
foreach $i (keys (%$value), keys (%$oldhash))
{
$merge{$i} = 1;
}
$res = 0;
foreach $i (keys (%merge))
{
if (exists $$value{$i})
{
$val = join (&gst_replace_regexp_to_separator ($re2), @{$$value{$i}});
$tmp = &gst_replace_split ($file, $i, $re1, $val);
}
else
{
# This deletes the entry.
$tmp = &gst_replace_split ($file, $i, $re1);
}
$res = $tmp if !$res;
}
return $res;
}
# Find $re matching send string and replace parenthesyzed
# part of $re with $value. FIXME: apply meeks' more general impl.
sub gst_replace_chat
{
my ($file, $re, $value) = @_;
my ($buff, $i, $bak, $found, $substr, $ret);
&gst_report_enter ();
&gst_report ("replace_chat", $file);
$buff = &gst_file_buffer_load ($file);
SCAN: foreach $i (@$buff)
{
$bak = "";
$found = "";
my ($quoted);
chomp $i;
while ($i ne "")
{
# If it uses quotes. FIXME: Assuming they surround the whole string.
if ($i =~ /^\'/)
{
$i =~ s/\'([^\']*)\' ?//;
$found = $1;
$quoted = 1;
}
else
{
$i =~ s/([^ \t]*) ?//;
$found = $1;
$quoted = 0;
}
# If it looks like what we're looking for,
# substitute what is in parens with value.
if ($found =~ /$re/i)
{
$substr = $1;
$found =~ s/$substr/$value/i;
if ($quoted == 1)
{
$i = $bak . "\'$found\' " . $i . "\n";
}
else
{
$i = $bak . "$found " . $i . "\n";
}
last SCAN;
}
if ($quoted == 1)
{
$bak .= "\'$found\'";
}
else
{
$bak .= "$found";
}
$bak .= " " if $bak ne "";
}
$i = $bak . "\n";
}
$ret = &gst_file_buffer_save ($buff, $file);
&gst_report_leave ();
return $ret;
}
# Find/append $section in ini $file and replace/append
# $var = $value pair. FIXME: should reimplement with
# interfaces style. This is too large.
sub gst_replace_ini
{
my ($file, $section, $var, $value) = @_;
my ($buff, $i, $found_flag, $ret);
my ($pre_space, $post_comment, $sec_save);
&gst_report_enter ();
&gst_report ("replace_ini", $var, $section, $file);
$buff = &gst_file_buffer_load ($file);
&gst_file_buffer_join_lines ($buff);
$found_flag = 0;
foreach $i (@$buff)
{
$pre_space = $post_comment = "";
chomp $i;
$pre_space = $1 if $i =~ s/^([ \t]+)//;
$post_comment = $1 if $i =~ s/([ \t]*[\#;].*)//;
if ($i ne "")
{
if ($i =~ /\[$section\]/i)
{
$i =~ s/(\[$section\][ \t]*)//i;
$sec_save = $1;
$found_flag = 1;
}
if ($found_flag)
{
if ($i =~ /\[[^\]]+\]/)
{
$i = "$var = $value\n$i" if ($value ne "");
$found_flag = 2;
}
if ($i =~ /^$var[ \t]*=/i)
{
if ($value ne "")
{
$i =~ s/^($var[ \t]*=[ \t]*).*/$1$value/i;
}
else
{
$i = "";
}
$found_flag = 2;
}
}
}
if ($found_flag && $sec_save ne "")
{
$i = $sec_save . $i;
$sec_save = "";
}
$i = $pre_space . $i . $post_comment . "\n";
last if $found_flag == 2;
}
push @$buff, "\n[$section]\n" if (!$found_flag);
push @$buff, "$var = $value\n" if ($found_flag < 2 && $value ne "");
&gst_file_buffer_clean ($buff);
$ret = &gst_file_buffer_save ($buff, $file);
&gst_report_leave ();
return $ret;
}
# Well, removes a $section from an ini type $file.
sub gst_replace_remove_ini_section
{
my ($file, $section) = @_;
my ($buff, $i, $found_flag, $ret);
my ($pre_space, $post_comment, $sec_save);
&gst_report_enter ();
&gst_report ("replace_del_ini_sect", $section, $file);
$buff = &gst_file_buffer_load ($file);
&gst_file_buffer_join_lines ($buff);
$found_flag = 0;
foreach $i (@$buff)
{
$pre_space = $post_comment = "";
chomp $i;
$pre_space = $1 if $i =~ s/^([ \t]+)//;
$post_comment = $1 if $i =~ s/([ \t]*[\#;].*)//;
if ($i ne "")
{
if ($i =~ /\[$section\]/i)
{
$i =~ s/(\[$section\][ \t]*)//i;
$found_flag = 1;
}
elsif ($found_flag && $i =~ /\[.+\]/i)
{
$i = $pre_space . $i . $post_comment . "\n";
last;
}
}
if ($found_flag)
{
if ($post_comment =~ /^[ \t]*$/)
{
$i = "";
}
else
{
$i = $post_comment . "\n";
}
}
else
{
$i = $pre_space . $i . $post_comment . "\n";
}
}
&gst_file_buffer_clean ($buff);
$ret = &gst_file_buffer_save ($buff, $file);
&gst_report_leave ();
return $ret;
}
# Removes a $var in $section of a ini type $file.
sub gst_replace_remove_ini_var
{
my ($file, $section, $var) = @_;
&gst_replace_ini ($file, $section, $var, "");
}
# Replace using boolean $value with a yes/no representation,
# ini style.
sub gst_replace_ini_bool
{
my ($file, $section, $var, $value) = @_;
$value = ($value == 1)? "yes": "no";
return &gst_replace_ini ($file, $section, $var, $value);
}
# *cap replacement methods.
#sub gst_replace_cap
#{
# my ($file, $section, $var, $value) = @_;
# my ($buff, $i, $found_flag, $ret);
# my ($pre_space, $post_comment, $sec_save);
#
# $buff = &gst_file_buffer_load ($file);
## &gst_file_buffer_join_lines ($buff);
# $found_flag = 0;
#
# foreach $i (@$buff)
# {
# $pre_space = $post_comment = "";
#
# chomp $i;
# $pre_space = $1 if $i =~ s/^([ \t]+)//;
# $post_comment = $1 if $i =~ s/^([ \t]*[\#].*)//;
#
# if ($i ne "")
# {
# if ($i =~ /^$section[|:]/i)
# {
# $i =~ s/^($section)//i;
# $sec_save = $1;
# $found_flag = 1;
# }
#
# if ($found_flag)
# {
# if ($i =~ /^[a-z0-9]+[|:]/)
# {
# $i = "\t:$var=$value:\n$i";
# $found_flag = 2;
# }
#
# if ($found_flag && $i =~ /^:$var[=:]/i)
# {
# if ($value ne "")
# {
# $i =~ s/^(:$var)[^:]*/$1=$value/i;
# }
# else
# {
# $i = "";
# }
# $found_flag = 2;
# }
# }
# }
#
# if ($found_flag && $sec_save ne "")
# {
# $i = $sec_save . $i;
# $sec_save = "";
# }
#
# $i = $pre_space . $i . $post_comment . "\n";
# last if $found_flag == 2;
# }
#
# push @$buff, "\n$section:\\\n" if (!$found_flag);
# push @$buff, "\t:$var=$value:\n" if ($found_flag < 2 && $value ne "");
#
# &gst_file_buffer_clean ($buff);
# $ret = &gst_file_buffer_save ($buff, $file);
# return $ret;
#}
sub gst_replace_remove_cap_section
{
my ($file, $section) = @_;
my ($buff, $i, $found_flag, $ret);
my ($pre_space, $post_comment, $sec_save);
$buff = &gst_file_buffer_load ($file);
$found_flag = 0;
foreach $i (@$buff)
{
$pre_space = $post_comment = "";
chomp $i;
$pre_space = $1 if $i =~ s/^([ \t]+)//;
$post_comment = $1 if $i =~ s/^([ \t]*[\#].*)//;
if ($i ne "")
{
if ($i =~ /^$section[|:]/i)
{
$i = "";
$found_flag = 1;
}
elsif ($found_flag && $i =~ /^[a-z0-9]+[|:]/i)
{
$i = $pre_space . $i . $post_comment . "\n";
last;
}
}
if ($found_flag)
{
if ($post_comment =~ /^[ \t]*$/)
{
$i = "";
}
else
{
$i = $post_comment . "\n";
}
}
else
{
$i = $pre_space . $i . $post_comment . "\n";
}
}
&gst_file_buffer_clean ($buff);
$ret = &gst_file_buffer_save ($buff, $file);
return $ret;
}
# Save a printcap buffer to file. This doesn't do any extra processing for now,
# but it may do so in the future.
sub gst_replace_printcap_buffer_save
{
my ($file, $buf) = @_;
my $ret;
&gst_file_buffer_clean ($buf);
$ret = &gst_file_buffer_save ($buf, $file);
return $ret;
}
sub gst_replace_printcap_print_stanza
{
my ($stanza) = @_;
return $stanza . ":\n";
}
sub gst_replace_printcap_print_option
{
my ($option, $type, $value) = @_;
return "\t:" . $option . $type . $value . ":\n";
}
sub gst_replace_printcap_add_stanza
{
my ($buf, $stanza) = @_;
push @$buf, "\n";
push @$buf, "##PRINTTOOL3## LOCAL unknown NAxNA {} Unknown Default {}\n";
push @$buf, &gst_replace_printcap_print_stanza ($stanza);
return ($#$buf - 1, $#$buf);
}
sub gst_replace_printcap_add_option_slot
{
my ($buf, $stanza_line_no) = @_;
my (@buf_tail);
@buf_tail = splice (@$buf, $stanza_line_no + 1);
push @$buf, "\t:NEW_OPTION:\n";
push @$buf, @buf_tail;
return $stanza_line_no + 1;
}
sub gst_replace_printcap_remove_stanza_from_buf
{
my ($buf, $printtool_line_no, $stanza_line_no) = @_;
my ($next_printtool_line_no, $next_stanza_line_no);
my ($splice_start, $splice_end);
($next_printtool_line_no, $next_stanza_line_no) =
&gst_parse_printcap_get_next_stanza ($buf, $stanza_line_no + 1);
if ($printtool_line_no != -1)
{
$splice_start = $printtool_line_no;
}
else
{
$splice_start = $stanza_line_no;
}
if ($next_printtool_line_no != -1)
{
$splice_end = $next_printtool_line_no;
}
else
{
$splice_end = $next_stanza_line_no;
}
if ($splice_end != -1)
{
splice (@$buf, $splice_start, $splice_end - $splice_start);
}
else
{
splice (@$buf, $splice_start);
}
}
sub gst_replace_printcap_remove_option_slot
{
my ($buf, $option_line_no) = @_;
splice (@$buf, $option_line_no, 1);
}
# High-level API.
sub gst_replace_printcap_remove_printer
{
my ($file, $printer) = @_;
my ($buf, $printtool_line_no, $stanza_line_no);
$buf = &gst_parse_printcap_buffer_load ($file);
($printtool_line_no, $stanza_line_no) = &gst_parse_printcap_find_stanza ($buf, 0, $printer);
&gst_replace_printcap_remove_stanza_from_buf ($buf, $printtool_line_no, $stanza_line_no);
$ret = &gst_replace_printcap_buffer_save ($file, $buf);
return $ret;
}
# High-level API.
sub gst_replace_printcap
{
my ($file, $section, $var, $type, $value) = @_;
my ($printtool_line_no, $stanza_line_no, $option_line_no);
my ($buf, $ret);
$buf = &gst_parse_printcap_buffer_load ($file);
($printtool_line_no, $stanza_line_no) = &gst_parse_printcap_find_stanza ($buf, 0, $section);
if ($stanza_line_no == -1)
{
($printtool_line_no, $stanza_line_no) = &gst_replace_printcap_add_stanza ($buf, $section);
}
$option_line_no = &gst_parse_printcap_find_option ($buf, $stanza_line_no + 1, $var);
if ($option_line_no == -1)
{
$option_line_no = &gst_replace_printcap_add_option_slot ($buf, $stanza_line_no);
}
if ($type ne "")
{
$$buf [$option_line_no] = "\t:" . $var . $type . $value . ":\n";
}
elsif ($value == 1)
{
$$buf [$option_line_no] = "\t:" . $var . ":\n";
}
else
{
&gst_replace_printcap_remove_option_slot ($buf, $option_line_no);
}
$ret = &gst_replace_printcap_buffer_save ($file, $buf);
return $ret;
}
# Debian /etc/network/interfaces in-line replacing methods.
# From loaded buffer, starting at $line_no, find next debian
# interfaces format stanza. Return array ref with all stanza args.
# -1 if not found.
# NOTE: $line_no is a scalar ref. and gives the position of next stanza.
sub gst_replace_interfaces_get_next_stanza
{
my ($buff, $line_no, $stanza_type) = @_;
my ($i, $line);
while ($$line_no < (scalar @$buff))
{
$_ = $$buff[$$line_no];
$_ = &gst_parse_interfaces_line_clean ($_);
if (/^$stanza_type[ \t]+[^ \t]/)
{
s/^$stanza_type[ \t]+//;
return [ split ("[ \t]+", $_) ];
}
$$line_no ++;
}
return -1;
}
sub gst_replace_interfaces_line_is_stanza
{
my ($line) = @_;
return 1 if $line =~ /^(iface|auto|mapping|allow-\w+)[ \t]+[^ \t]/;
return 0;
}
# Scan for next option. An option is something that is
# not a stanza. Return key/value tuple ref, -1 if not found.
# $$line_no will contain position.
sub gst_replace_interfaces_get_next_option
{
my ($buff, $line_no) = @_;
my ($i, $line, $empty_lines);
$empty_lines = 0;
while ($$line_no < (scalar @$buff))
{
$_ = $$buff[$$line_no];
$_ = &gst_parse_interfaces_line_clean ($_);
if (!/^$/)
{
return [ split ("[ \t]+", $_, 2) ] if (! &gst_replace_interfaces_line_is_stanza ($_));
$$line_no -= $empty_lines;
return -1;
}
else
{
$empty_lines ++;
}
$$line_no ++;
}
$$line_no -= $empty_lines;
return -1;
}
# Search buffer for option with key $key, starting
# at $$line_no position. Return 1/0 found result.
# $$line_no will show position.
sub gst_replace_interfaces_option_locate
{
my ($buff, $line_no, $key) = @_;
my $option;
while (($option = &gst_replace_interfaces_get_next_option ($buff, $line_no)) != -1)
{
return 1 if ($$option[0] eq $key);
$$line_no ++;
}
return 0;
}
# Locate stanza line for $iface in $buff, starting at $$line_no.
sub gst_replace_interfaces_next_stanza_locate
{
my ($buff, $line_no) = @_;
return &gst_replace_interfaces_get_next_stanza ($buff, \$$line_no, "(iface|auto|mapping)");
}
sub gst_replace_interfaces_iface_stanza_locate
{
my ($buff, $line_no, $iface) = @_;
return &gst_replace_interfaces_generic_stanza_locate ($buff, \$$line_no, $iface, "iface");
}
sub gst_replace_interfaces_auto_stanza_locate
{
my ($buff, $line_no, $iface) = @_;
return &gst_replace_interfaces_generic_stanza_locate ($buff, \$$line_no, $iface, "auto");
}
sub gst_replace_interfaces_generic_stanza_locate
{
my ($buff, $line_no, $iface, $stanza_name) = @_;
my $stanza;
while (($stanza = &gst_replace_interfaces_get_next_stanza ($buff, \$$line_no, $stanza_name)) != -1)
{
return 1 if ($$stanza[0] eq $iface);
$$line_no++;
}
return 0;
}
# Create a Debian Woody stanza, type auto, with the requested
# @ifaces as values.
sub gst_replace_interfaces_auto_stanza_create
{
my ($buff, @ifaces) = @_;
my ($count);
push @$buff, "\n" if ($$buff[$count] ne "");
push @$buff, "auto " . join (" ", @ifaces) . "\n";
}
# Append a stanza for $iface to buffer.
sub gst_replace_interfaces_iface_stanza_create
{
my ($buff, $iface) = @_;
my ($count);
$count = $#$buff;
push @$buff, "\n" if ($$buff[$count] ne "");
push @$buff, "iface $iface inet static\n";
}
# Delete $iface stanza and all its option lines.
sub gst_replace_interfaces_iface_stanza_delete
{
my ($file, $iface) = @_;
my ($buff, $line_no, $line_end, $stanza);
$buff = &gst_file_buffer_load ($file);
&gst_file_buffer_join_lines ($buff);
$line_no = 0;
return -1 if (!&gst_replace_interfaces_iface_stanza_locate ($buff, \$line_no, $iface));
$line_end = $line_no + 1;
&gst_replace_interfaces_next_stanza_locate ($buff, \$line_end);
while ($line_no < $line_end)
{
delete $$buff[$line_no];
$line_no++;
}
$line_no = 0;
if (&gst_replace_interfaces_auto_stanza_locate ($buff, \$line_no, $iface))
{
$line_end = $line_no + 1;
&gst_replace_interfaces_next_stanza_locate ($buff, \$line_end);
while ($line_no < $line_end)
{
delete $$buff[$line_no];
$line_no++;
}
}
&gst_file_buffer_clean ($buff);
return &gst_file_buffer_save ($buff, $file);
}
# Find $iface stanza line and replace $pos value (ie the method).
sub gst_replace_interfaces_stanza_value
{
my ($file, $iface, $pos, $value) = @_;
my ($buff, $line_no, $stanza);
my ($pre_space, $line, $line_arr);
$buff = &gst_file_buffer_load ($file);
&gst_file_buffer_join_lines ($buff);
$line_no = 0;
if (!&gst_replace_interfaces_iface_stanza_locate ($buff, \$line_no, $iface))
{
$line_no = 0;
&gst_replace_interfaces_iface_stanza_create ($buff, $iface);
&gst_replace_interfaces_iface_stanza_locate ($buff, \$line_no, $iface);
}
$line = $$buff[$line_no];
chomp $line;
$pre_space = $1 if $line =~ s/^([ \t]+)//;
$line =~ s/^iface[ \t]+//;
@line_arr = split ("[ \t]+", $line);
$line_arr[$pos] = $value;
$$buff[$line_no] = $pre_space . "iface " . join (' ', @line_arr) . "\n";
&gst_file_buffer_clean ($buff);
return &gst_file_buffer_save ($buff, $file);
}
# Find/append $key option in $iface stanza and set $value.
sub gst_replace_interfaces_option_str
{
my ($file, $iface, $key, $value) = @_;
my ($buff, $line_no, $stanza, $ret);
my ($pre_space, $line, $line_arr);
&gst_report_enter ();
&gst_report ("replace_ifaces_str", $key, $iface);
$buff = &gst_file_buffer_load ($file);
&gst_file_buffer_join_lines ($buff);
$line_no = 0;
if (!&gst_replace_interfaces_iface_stanza_locate ($buff, \$line_no, $iface))
{
$line_no = 0;
&gst_replace_interfaces_iface_stanza_create ($buff, $iface);
&gst_replace_interfaces_iface_stanza_locate ($buff, \$line_no, $iface);
}
$line_no++;
if (&gst_replace_interfaces_option_locate ($buff, \$line_no, $key))
{
if ($value eq "") # Delete option if value is empty.
{
$$buff[$line_no] = "";
}
else
{
chomp $$buff[$line_no];
$$buff[$line_no] =~ s/^([ \t]*$key[ \t]).*/$1/;
}
}
elsif ($value ne "")
{
$line_no --;
chomp $$buff[$line_no];
$$buff[$line_no] =~ s/^([ \t]*)(.*)/$1$2\n$1$key /;
}
$$buff[$line_no] .= $value . "\n" if $value ne "";
&gst_file_buffer_clean ($buff);
$ret = &gst_file_buffer_save ($buff, $file);
&gst_report_leave ();
return $ret;
}
# $key option is keyword. $value says if it should exist or not.
sub gst_replace_interfaces_option_kw
{
my ($file, $iface, $key, $value) = @_;
return &gst_replace_interfaces_option_str ($file, $iface, $key, $value? " ": "");
}
# !$value says if keyword should exist or not (ie noauto).
sub gst_replace_interfaces_option_kw_not
{
my ($file, $iface, $key, $value) = @_;
return &gst_replace_interfaces_option_kw ($file, $iface, $key, !$value);
}
# Implementing pump(8) pump.conf file format replacer.
# May be useful for dhcpd too.
# Try to find the next option, returning an array ref
# with the found key and the rest of the options in
# two items, or -1 if not found.
sub gst_replace_pump_get_next_option
{
my ($buff, $line_no) = @_;
while ($$line_no < (scalar @$buff))
{
$_ = $$buff[$$line_no];
$_ = &gst_parse_interfaces_line_clean ($_);
if ($_ ne "")
{
return [ split ("[ \t]+", $_, 2) ];
}
$$line_no ++;
}
return -1;
}
# Iterate with get_next_option, starting at $line_no
# until the option with $key is found, or eof.
# Return 0/1 as found.
sub gst_replace_pump_option_locate
{
my ($buff, $line_no, $key) = @_;
my ($opt);
while (($opt = &gst_replace_pump_get_next_option ($buff, $line_no)) != -1)
{
return 1 if $$opt[0] eq $key;
return 0 if $$opt[0] eq "}";
$$line_no ++;
}
return 0;
}
# Try to find a "device" option whose interface is $iface,
# starting at $$line_no. Return 0/1 as found.
sub gst_replace_pump_get_device
{
my ($buff, $line_no, $iface) = @_;
my ($opt);
while (($opt = &gst_replace_pump_get_next_option ($buff, $line_no)) != -1)
{
if ($$opt[0] eq "device")
{
$$opt[1] =~ s/[ \t]*\{//;
return 1 if $$opt[1] eq $iface;
}
$$line_no ++;
}
return 0;
}
# Add a device entry for $iface at the end of $buff.
sub gst_replace_pump_add_device
{
my ($buff, $iface) = @_;
push @$buff, "\n";
push @$buff, "device $iface {\n";
push @$buff, "\t\n";
push @$buff, "}\n";
}
# Find a "device" section for $iface and
# replace/add/delete the $key option inside the section.
sub gst_replace_pump_iface_option_str
{
my ($file, $iface, $key, $value) = @_;
my ($line_no, $ret);
$buff = &gst_file_buffer_load ($file);
$line_no = 0;
if (!&gst_replace_pump_get_device ($buff, \$line_no, $iface))
{
$line_no = 0;
&gst_replace_pump_add_device ($buff, $iface);
&gst_replace_pump_get_device ($buff, \$line_no, $iface);
}
$line_no ++;
if (&gst_replace_pump_option_locate ($buff, \$line_no, $key))
{
if ($value eq "")
{
$$buff[$line_no] = "";
}
else
{
chomp $$buff[$line_no];
$$buff[$line_no] =~ s/^([ \t]*$key[ \t]).*/$1/;
}
}
elsif ($value ne "")
{
$line_no --;
chomp $$buff[$line_no];
$$buff[$line_no] =~ s/^([ \t]*)(.*)/$1$2\n$1$key /;
}
if ($value ne "")
{
$value =~ s/^[ \t]+//;
$value =~ s/[ \t]+$//;
$$buff[$line_no] .= &gst_parse_shell_escape ($value) . "\n";
}
&gst_file_buffer_clean ($buff);
$ret = &gst_file_buffer_save ($buff, $file);
&gst_report_leave ();
return $ret;
}
# Same as function above, except $key is a keyword.
sub gst_replace_pump_iface_kw
{
my ($file, $iface, $key, $value) = @_;
return &gst_replace_pump_iface_option_str ($file, $iface, $key, $value? " ": "");
}
# Same, but use the negative of $value (i.e. nodns)
sub gst_replace_pump_iface_kw_not
{
my ($file, $iface, $key, $value) = @_;
return &gst_replace_pump_iface_kw ($file, $iface, $key, !$value);
}
sub gst_replace_xml_pcdata
{
my ($file, $varpath, $data) = @_;
my ($model, $branch, $fd, $compressed);
($model, $compressed) = &gst_xml_model_scan ($file);
$branch = &gst_xml_model_ensure ($model, $varpath);
&gst_xml_model_set_pcdata ($branch, $data);
return &gst_xml_model_save ($model, $file, $compressed);
}
sub gst_replace_xml_attribute
{
my ($file, $varpath, $attr, $value) = @_;
my ($model, $branch, $fd, $compressed);
($model, $compressed) = &gst_xml_model_scan ($file);
$branch = &gst_xml_model_ensure ($model, $varpath);
&gst_xml_model_set_attribute ($branch, $attr, $value);
return &gst_xml_model_save ($model, $file, $compressed);
}
sub gst_replace_xml_pcdata_with_type
{
my ($file, $varpath, $type, $data) = @_;
my ($model, $branch, $fd, $compressed);
($model, $compressed) = &gst_xml_model_scan ($file);
$branch = &gst_xml_model_ensure ($model, $varpath);
&gst_xml_model_set_pcdata ($branch, $data);
&gst_xml_model_set_attribute ($branch, "TYPE", $type);
return &gst_xml_model_save ($model, $file, $compressed);
}
sub gst_replace_xml_attribute_with_type
{
my ($file, $varpath, $attr, $type, $value) = @_;
my ($model, $branch, $fd, $compressed);
($model, $compressed) = &gst_xml_model_scan ($file);
$branch = &gst_xml_model_ensure ($model, $varpath);
&gst_xml_model_set_attribute ($branch, $attr, $value);
&gst_xml_model_set_attribute ($branch, "TYPE", $type);
return &gst_xml_model_save ($model, $file, $compressed);
}
sub gst_replace_alchemist_ensure_list_types
{
my ($model, $varpath, $setpath) = @_;
my ($branch, @path);
$branch = &gst_xml_model_find ($model, $varpath);
@path = split /\//, $setpath;
# NOTE: The following could be done with a depth-iterator callback from a func
# similar to gst_xml_model_find ().
for $elem (@path)
{
next if ($elem eq "");
my @children = @$branch;
shift @children; # Attributes
$branch = undef;
while (@children)
{
if ($children [0] eq $elem)
{
shift @children;
$branch = shift @children;
&gst_xml_model_set_attribute ($branch, "TYPE", "LIST");
last;
}
shift @children;
shift @children;
}
last if ($branch == undef);
}
}
sub gst_replace_alchemist
{
my ($file, $varpath, $type, $value) = @_;
my ($fullpath, $model, $branch, $fd, $compressed);
$fullpath = "/adm_context/datatree/" . $varpath;
($model, $compressed) = &gst_xml_model_scan ($file);
$branch = &gst_xml_model_ensure ($model, $fullpath);
&gst_replace_alchemist_ensure_list_types ($model, "/adm_context/datatree/", $varpath);
&gst_xml_model_set_attribute ($branch, "VALUE", $value);
&gst_xml_model_set_attribute ($branch, "TYPE", $type);
return &gst_xml_model_save ($model, $file, $compressed);
}
sub gst_replace_alchemist_print
{
my ($file, $printer, $varpath, $type, $value) = @_;
my ($fullpath, $model, $branch, $fd, $compressed);
$fullpath = "/adm_context/datatree/printconf/print_queues/" . $printer . "/" . $varpath;
($model, $compressed) = &gst_xml_model_scan ($file);
$branch = &gst_xml_model_ensure ($model, $fullpath);
&gst_replace_alchemist_ensure_list_types ($model, "/adm_context/datatree/",
"printconf/print_queues/" . $printer . "/" . $varpath);
&gst_xml_model_set_attribute ($branch, "VALUE", $value);
&gst_xml_model_set_attribute ($branch, "TYPE", $type);
$branch = &gst_xml_model_find ($model, "/adm_context/datatree/printconf/print_queues/" . $printer);
&gst_xml_model_set_attribute ($branch, "ATOMIC", "TRUE");
return &gst_xml_model_save ($model, $file, $compressed);
}
# This could be split up.
sub gst_replace_alchemist_print_option
{
my ($file, $printer, $name, $type, $value) = @_;
my ($varpath, $model, $branch, $fd, $compressed, $options, $option);
($model, $compressed) = &gst_xml_model_scan ($file);
$branch = &gst_xml_model_ensure ($model, "/adm_context/datatree/printconf/print_queues/" . $printer .
"/filter_data/foomatic_defaults");
&gst_replace_alchemist_ensure_list_types ($model, "/adm_context/datatree/", "printconf/print_queues/" .
$printer . "/filter_data/foomatic_defaults");
&gst_xml_model_set_attribute ($branch, "ANONYMOUS", "TRUE");
# See if option is already defined.
$options = &gst_xml_model_get_children ($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 = $o;
last;
}
}
# If not, create node for it.
if (!$option)
{
$option = &gst_xml_model_add ($branch, "", $option_default);
&gst_xml_model_set_attribute ($option, "TYPE", "LIST");
}
# Set the option attributes.
my $node = &gst_xml_model_ensure ($option, "name");
&gst_xml_model_set_attribute ($node, "TYPE", "STRING");
&gst_xml_model_set_attribute ($node, "VALUE", $name);
$node = &gst_xml_model_ensure ($option, "type");
&gst_xml_model_set_attribute ($node, "TYPE", "STRING");
&gst_xml_model_set_attribute ($node, "VALUE", $type);
$node = &gst_xml_model_ensure ($option, "default");
&gst_xml_model_set_attribute ($node, "TYPE", "STRING");
&gst_xml_model_set_attribute ($node, "VALUE", $value);
return &gst_xml_model_save ($model, $file, $compressed);
}
sub gst_replace_fq_hostname
{
my ($file, $hostname, $domain) = @_;
if ($domain eq undef)
{
return &gst_replace_line_first ($file, "$hostname");
}
else
{
return &gst_replace_line_first ($file, "$hostname.$domain");
}
}
sub gst_replace_rcinet1conf
{
my ($file, $iface, $kw, $val) = @_;
my ($line);
$iface =~ s/eth//;
$line = "$kw\[$iface\]";
$val = "\"$val\"" if ($val ne undef);
return &gst_replace_split ($file, $line, "[ \t]*=[ \t]*", $val);
}
sub gst_replace_rcinet1conf_global
{
my ($file, $kw, $val) = @_;
$val = "\"$val\"";
return &gst_replace_split ($file, $kw, "[ \t]*=[ \t]*", $val)
}
sub gst_replace_wireless_opts
{
my ($file, $iface, $proc, $kw, $value) = @_;
my $ifaces = &$proc ();
my $found = 0;
my $search = 1;
my $buff;
foreach $i (@$ifaces)
{
$found = 1 if ($iface eq $i);
}
$buff = &gst_file_buffer_load ($file);
foreach $i (@$buff)
{
if (/^case/)
{
# we don't want to search inside the case
$search = 0;
}
elsif (/^esac/)
{
# we want to continue searching
$search = 1;
}
if ((/^[ \t]*$kw/) && ($search))
{
$_ = "$kw=\"$value\"";
$found = 1;
}
}
if (!$found)
{
push @$buff, "$kw=\"$value\"";
}
&gst_file_buffer_clean ($buff);
return &gst_file_buffer_save ($buff, $file);
}
# Functions for replacing in FreeBSD's /etc/ppp/ppp.conf
sub gst_replace_pppconf_common
{
my ($pppconf, $section, $key, $string) = @_;
my ($buff, $line_no, $end_line_no, $i, $found);
$buff = &gst_file_buffer_load ($pppconf);
$line_no = &gst_parse_pppconf_find_stanza ($buff, $section);
if ($line_no ne -1)
{
# The stanza exists
$line_no++;
$end_line_no = &gst_parse_pppconf_find_next_stanza ($buff, $line_no);
$end_line_no = scalar @$buff + 1 if ($end_line_no == -1);
$end_line_no--;
for ($i = $line_no; $i <= $end_line_no; $i++)
{
if ($$buff[$i] =~ /[ \t]+$key/)
{
if ($string ne undef)
{
$$buff[$i] = " $string\n";
$found = 1;
}
else
{
delete $$buff[$i];
}
}
}
if ($found != 1)
{
$$buff[$end_line_no] .= " $string\n" if ($string ne undef);
}
}
else
{
if ($string ne undef)
{
push @$buff, "$section:\n";
push @$buff, " $string\n";
}
}
&gst_file_buffer_clean ($buff);
return &gst_file_buffer_save ($buff, $pppconf);
}
sub gst_replace_pppconf
{
my ($pppconf, $section, $key, $value) = @_;
&gst_replace_pppconf_common ($pppconf, $section, $key, "set $key $value");
}
sub gst_replace_pppconf_bool
{
my ($pppconf, $section, $key, $value) = @_;
&gst_replace_pppconf_common ($pppconf, $section, $key,
($value == 1)? "enable $key" : "disable $key");
}
sub gst_replace_confd_net_re
{
my ($file, $key, $re, $value) = @_;
my ($str, $contents, $i, $found, $done);
$found = $done = 0;
$contents = &gst_file_buffer_load ($file);
for ($i = 0; $i <= scalar (@$contents); $i++)
{
# search for key
if ($$contents[$i] =~ /^$key[ \t]*=[ \t]*\(/)
{
$found = 1;
do {
if ($$contents[$i] =~ /\"([^\"]*)\"/)
{
$str = $1;
if ($str =~ /$re/)
{
$str =~ s/$re/$value/;
}
else
{
$str .= $value;
}
$$contents[$i] =~ s/\"([^\"]*)\"/\"$str\"/;
$done = 1;
}
$i++;
} while (!$done);
}
}
if (!$found)
{
push @$contents, "$key=(\"$value\")\n";
}
return &gst_file_buffer_save ($contents, $file);
}
sub gst_replace_confd_net
{
my ($file, $key, $value) = @_;
return &gst_replace_confd_net_re ($file, $key, ".*", $value);
}