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#!/usr/bin/perl -w
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
require 5.004;
use strict;
package apxs;
##
## Configuration
##
# are we building in a cross compile environment? If so, destdir contains
# the base directory of the cross compiled environment, otherwise destdir
# is the empty string.
my $destdir = "";
my $ddi = rindex($0, "/usr/bin");
if ($ddi >= 0) {
$destdir = substr($0, 0, $ddi);
}
my %config_vars = ();
my $installbuilddir = "/usr/lib64/apache2/build";
get_config_vars($destdir . "$installbuilddir/config_vars.mk",\%config_vars);
# read the configuration variables once
my $prefix = get_vars("prefix");
my $CFG_PREFIX = $prefix;
my $exec_prefix = get_vars("exec_prefix");
my $datadir = get_vars("datadir");
my $localstatedir = get_vars("localstatedir");
my $CFG_TARGET = get_vars("progname");
my $CFG_SYSCONFDIR = get_vars("sysconfdir");
my $CFG_CFLAGS = join ' ', map { get_vars($_) }
qw(SHLTCFLAGS CFLAGS NOTEST_CPPFLAGS EXTRA_CPPFLAGS EXTRA_CFLAGS);
my $CFG_LDFLAGS = join ' ', map { get_vars($_) }
qw(LDFLAGS NOTEST_LDFLAGS SH_LDFLAGS);
my $includedir = $destdir . get_vars("includedir");
my $CFG_INCLUDEDIR = eval qq("$includedir");
my $CFG_CC = get_vars("CC");
my $libexecdir = $destdir . get_vars("libexecdir");
my $libdir = get_vars("libdir");
my $CFG_LIBEXECDIR = eval qq("$libexecdir");
my $sbindir = get_vars("sbindir");
my $CFG_SBINDIR = eval qq("$sbindir");
my $ltflags = $ENV{'LTFLAGS'};
$ltflags or $ltflags = "--silent";
my %internal_vars = map {$_ => 1}
qw(TARGET CC CFLAGS CFLAGS_SHLIB LD_SHLIB LDFLAGS_SHLIB LIBS_SHLIB
PREFIX SBINDIR INCLUDEDIR LIBEXECDIR SYSCONFDIR);
##
## parse argument line
##
# defaults for parameters
my $opt_n = '';
my $opt_g = '';
my $opt_c = 0;
my $opt_o = '';
my @opt_D = ();
my @opt_I = ();
my @opt_L = ();
my @opt_l = ();
my @opt_W = ();
my @opt_S = ();
my $opt_e = 0;
my $opt_i = 0;
my $opt_a = 0;
my $opt_A = 0;
my $opt_q = 0;
my $opt_h = 0;
my $opt_p = 0;
my $opt_v = 0;
# this subroutine is derived from Perl's getopts.pl with the enhancement of
# the "+" metacharacter at the format string to allow a list to be built by
# subsequent occurrences of the same option.
sub Getopts {
my ($argumentative, @ARGV) = @_;
my $errs = 0;
local $_;
my @args = split / */, $argumentative;
while (@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) {
my ($first, $rest) = ($1,$2);
if ($_ =~ m|^--$|) {
shift @ARGV;
last;
}
my $pos = index($argumentative,$first);
if ($pos >= 0) {
if ($pos < $#args && $args[$pos+1] eq ':') {
shift @ARGV;
if ($rest eq '') {
unless (@ARGV) {
error("Incomplete option: $first (needs an argument)");
$errs++;
}
$rest = shift(@ARGV);
}
eval "\$opt_$first = \$rest;";
}
elsif ($pos < $#args && $args[$pos+1] eq '+') {
shift @ARGV;
if ($rest eq '') {
unless (@ARGV) {
error("Incomplete option: $first (needs an argument)");
$errs++;
}
$rest = shift(@ARGV);
}
eval "push(\@opt_$first, \$rest);";
}
else {
eval "\$opt_$first = 1";
if ($rest eq '') {
shift(@ARGV);
}
else {
$ARGV[0] = "-$rest";
}
}
}
else {
error("Unknown option: $first");
$errs++;
if ($rest ne '') {
$ARGV[0] = "-$rest";
}
else {
shift(@ARGV);
}
}
}
return ($errs == 0, @ARGV);
}
sub usage {
print STDERR "Usage: apxs -g [-S <var>=<val>] -n <modname>\n";
print STDERR " apxs -q [-v] [-S <var>=<val>] [<query> ...]\n";
print STDERR " apxs -c [-S <var>=<val>] [-o <dsofile>] [-D <name>[=<value>]]\n";
print STDERR " [-I <incdir>] [-L <libdir>] [-l <libname>] [-Wc,<flags>]\n";
print STDERR " [-Wl,<flags>] [-p] <files> ...\n";
print STDERR " apxs -i [-S <var>=<val>] [-a] [-A] [-n <modname>] <dsofile> ...\n";
print STDERR " apxs -e [-S <var>=<val>] [-a] [-A] [-n <modname>] <dsofile> ...\n";
exit(1);
}
# option handling
my $rc;
($rc, @ARGV) = &Getopts("qn:gco:I+D+L+l+W+S+eiaApv", @ARGV);
&usage if ($rc == 0);
&usage if ($#ARGV == -1 and not $opt_g and not $opt_q);
&usage if (not $opt_q and not ($opt_g and $opt_n) and not $opt_i and not $opt_c and not $opt_e);
# argument handling
my @args = @ARGV;
my $name = 'unknown';
$name = $opt_n if ($opt_n ne '');
if (@opt_S) {
my ($opt_S);
foreach $opt_S (@opt_S) {
if ($opt_S =~ m/^([^=]+)=(.*)$/) {
my ($var) = $1;
my ($val) = $2;
my $oldval = eval "\$CFG_$var";
unless ($var and $oldval) {
print STDERR "apxs:Error: no config variable $var\n";
&usage;
}
eval "\$CFG_${var}=\"${val}\"";
} else {
print STDERR "apxs:Error: malformatted -S option\n";
&usage;
}
}
}
##
## Initial shared object support check
##
unless ("yes" eq "yes") {
error("Sorry, no shared object support for Apache");
error("available under your platform. Make sure");
error("the Apache module mod_so is compiled into");
error("the server binary.");
exit 1;
}
sub get_config_vars{
my ($file, $rh_config) = @_;
open IN, $file or die "cannot open $file: $!";
while (<IN>){
if (/^\s*(.*?)\s*=\s*(.*)$/){
$rh_config->{$1} = $2;
}
}
close IN;
}
sub get_vars {
my $result = '';
my $ok = 0;
my $arg;
foreach $arg (@_) {
if (exists $config_vars{$arg} or exists $config_vars{lc $arg}) {
my $val = exists $config_vars{$arg}
? $config_vars{$arg}
: $config_vars{lc $arg};
$val =~ s/[()]//g;
$result .= eval "qq($val)" if defined $val;
$result .= ";;";
$ok = 1;
}
if (not $ok) {
if (exists $internal_vars{$arg} or exists $internal_vars{lc $arg}) {
my $val = exists $internal_vars{$arg} ? $arg : lc $arg;
$val = eval "\$CFG_$val";
$result .= eval "qq($val)" if defined $val;
$result .= ";;";
$ok = 1;
}
if (not $ok) {
error("Invalid query string `$arg'");
exit(1);
}
}
}
$result =~ s|;;$||;
return $result;
}
##
## Operation
##
# helper function for executing a list of
# system command with return code checks
sub execute_cmds {
my (@cmds) = @_;
my ($cmd, $rc);
foreach $cmd (@cmds) {
notice($cmd);
$rc = system $cmd;
if ($rc) {
error(sprintf "Command failed with rc=%d\n", $rc << 8);
exit 1 ;
}
}
}
if ($opt_g) {
##
## SAMPLE MODULE SOURCE GENERATION
##
if (-d $name) {
error("Directory `$name' already exists. Remove first");
exit(1);
}
my $data = join('', <DATA>);
$data =~ s|%NAME%|$name|sg;
$data =~ s|%TARGET%|$CFG_TARGET|sg;
$data =~ s|%PREFIX%|$prefix|sg;
$data =~ s|%INSTALLBUILDDIR%|$installbuilddir|sg;
$data =~ s|%LIBDIR%|$libdir|sg;
my ($mkf, $mods, $src) = ($data =~ m|^(.+)-=#=-\n(.+)-=#=-\n(.+)|s);
notice("Creating [DIR] $name");
system("mkdir $name");
notice("Creating [FILE] $name/Makefile");
open(FP, ">${name}/Makefile") || die;
print FP $mkf;
close(FP);
notice("Creating [FILE] $name/modules.mk");
open(FP, ">${name}/modules.mk") || die;
print FP $mods;
close(FP);
notice("Creating [FILE] $name/mod_$name.c");
open(FP, ">${name}/mod_${name}.c") || die;
print FP $src;
close(FP);
notice("Creating [FILE] $name/.deps");
system("touch ${name}/.deps");
exit(0);
}
if ($opt_q) {
##
## QUERY INFORMATION
##
my $result;
if ($#args >= 0) {
$result = get_vars(@args);
print "$result\n";
} else {
# -q without var name prints all variables and their values
# Additional -v pretty-prints output
if ($opt_v) {
# Variable names in alphabetic order
my @vars = sort {uc($a) cmp uc($b)} keys %config_vars;
# Make the left column as wide as the longest variable name
my $width = 0;
foreach (@vars) {
my $l = length $_;
$width = $l unless ($l <= $width);
}
foreach (@vars) {
printf "%-${width}s = %s\n", $_, $config_vars{$_};
}
} else {
# Unprettified name=value list
foreach (keys %config_vars) {
print "$_=$config_vars{$_}\n";
}
}
}
}
my $apr_config = $destdir . get_vars("APR_CONFIG");
if (! -x "$apr_config") {
error("$apr_config not found!");
exit(1);
}
my $apr_major_version = (split /\./, `$apr_config --version`)[0];
my $apu_config = "";
if ($apr_major_version < 2) {
$apu_config = $destdir . get_vars("APU_CONFIG");
if (! -x "$apu_config") {
error("$apu_config not found!");
exit(1);
}
}
my $libtool = `$apr_config --apr-libtool`;
chomp($libtool);
my $apr_includedir = `$apr_config --includes`;
chomp($apr_includedir);
my $apu_includedir = "";
if ($apr_major_version < 2) {
$apu_includedir = `$apu_config --includes`;
chomp($apu_includedir);
}
if ($opt_c) {
##
## SHARED OBJECT COMPILATION
##
# split files into sources and objects
my @srcs = ();
my @objs = ();
my $f;
foreach $f (@args) {
if ($f =~ m|\.c$|) {
push(@srcs, $f);
}
else {
push(@objs, $f);
}
}
# determine output file
my $dso_file;
if ($opt_o eq '') {
if ($#srcs > -1) {
$dso_file = $srcs[0];
$dso_file =~ s|\.[^.]+$|.la|;
}
elsif ($#objs > -1) {
$dso_file = $objs[0];
$dso_file =~ s|\.[^.]+$|.la|;
}
else {
$dso_file = "mod_unknown.la";
}
}
else {
$dso_file = $opt_o;
$dso_file =~ s|\.[^.]+$|.la|;
}
# create compilation commands
my @cmds = ();
my $opt = '';
my ($opt_Wc, $opt_I, $opt_D);
foreach $opt_Wc (@opt_W) {
$opt .= "$1 " if ($opt_Wc =~ m|^\s*c,(.*)$|);
}
foreach $opt_I (@opt_I) {
$opt .= "-I$opt_I ";
}
foreach $opt_D (@opt_D) {
$opt .= "-D$opt_D ";
}
my $cflags = "$CFG_CFLAGS";
my $s;
my $mod;
foreach $s (@srcs) {
my $slo = $s;
$slo =~ s|\.c$|.slo|;
my $lo = $s;
$lo =~ s|\.c$|.lo|;
my $la = $s;
$la =~ s|\.c$|.la|;
my $o = $s;
$o =~ s|\.c$|.o|;
push(@cmds, "$libtool $ltflags --mode=compile $CFG_CC $cflags -I$CFG_INCLUDEDIR $apr_includedir $apu_includedir $opt -c -o $lo $s && touch $slo");
unshift(@objs, $lo);
}
# create link command
my $o;
my $lo;
foreach $o (@objs) {
$lo .= " $o";
}
my ($opt_Wl, $opt_L, $opt_l);
$opt = '';
foreach $opt_Wl (@opt_W) {
$opt .= "$1 " if ($opt_Wl =~ m|^\s*l,(.*)$|);
}
foreach $opt_L (@opt_L) {
$opt .= " -L$opt_L";
}
foreach $opt_l (@opt_l) {
$opt .= " -l$opt_l";
}
my $ldflags = "$CFG_LDFLAGS";
if ($opt_p == 1) {
my $apr_libs=`$apr_config --cflags --ldflags --link-libtool --libs`;
chomp($apr_libs);
my $apu_libs="";
if ($apr_major_version < 2) {
$apu_libs=`$apu_config --ldflags --link-libtool --libs`;
chomp($apu_libs);
}
$opt .= " ".$apu_libs." ".$apr_libs;
}
else {
my $apr_ldflags=`$apr_config --ldflags`;
chomp($apr_ldflags);
$opt .= " -rpath $CFG_LIBEXECDIR -module -avoid-version $apr_ldflags";
}
push(@cmds, "$libtool $ltflags --mode=link $CFG_CC $ldflags -o $dso_file $opt $lo");
# execute the commands
&execute_cmds(@cmds);
# allow one-step compilation and installation
if ($opt_i or $opt_e) {
@args = ( $dso_file );
}
}
if ($opt_i or $opt_e) {
##
## SHARED OBJECT INSTALLATION
##
# determine installation commands
# and corresponding LoadModule directive
my @lmd = ();
my @cmds = ();
my $f;
foreach $f (@args) {
# ack all potential gcc, hp/ux, win32+os2+aix and os/x extensions
if ($f !~ m#(\.so$|\.la$|\.sl$|\.dll$|\.dylib$|)#) {
error("file $f is not a shared object");
exit(1);
}
my $t = $f;
$t =~ s|^.+/([^/]+)$|$1|;
# use .so unambigiously for installed shared library modules
$t =~ s|\.[^./\\]+$|\.so|;
if ($opt_i) {
push(@cmds, $destdir . "$installbuilddir/instdso.sh SH_LIBTOOL='" .
"$libtool' $f $CFG_LIBEXECDIR");
push(@cmds, "chmod 755 $CFG_LIBEXECDIR/$t");
}
# determine module symbolname and filename
my $filename = '';
if ($name eq 'unknown') {
$name = '';
my $base = $f;
$base =~ s|\.[^.]+$||;
if (-f "$base.c") {
open(FP, "<$base.c");
my $content = join('', <FP>);
close(FP);
if ($content =~ m|.*AP_DECLARE_MODULE\s*\(\s*([a-zA-Z0-9_]+)\s*\)\s*=.*|s || $content =~ m|.*module\s+(?:AP_MODULE_DECLARE_DATA\s+)?([a-zA-Z0-9_]+)_module\s*=\s*.*|s) {
$name = "$1";
$filename = "$base.c";
$filename =~ s|^[^/]+/||;
}
}
if ($name eq '') {
if ($base =~ m|.*mod_([a-zA-Z0-9_]+)\..+|) {
$name = "$1";
$filename = $base;
$filename =~ s|^[^/]+/||;
}
}
if ($name eq '') {
error("Sorry, cannot determine bootstrap symbol name");
error("Please specify one with option `-n'");
exit(1);
}
}
if ($filename eq '') {
$filename = "mod_${name}.c";
}
my $dir = $CFG_LIBEXECDIR;
$dir =~ s|^$CFG_PREFIX/?||;
$dir =~ s|(.)$|$1/|;
$t =~ s|\.la$|.so|;
push(@lmd, sprintf("LoadModule %-18s %s", "${name}_module", "$dir$t"));
}
# execute the commands
&execute_cmds(@cmds);
# activate module via LoadModule/AddModule directive
if ($opt_a or $opt_A) {
my $lmd;
my $c = '';
$c = '#' if ($opt_A);
foreach $lmd (@lmd) {
my $what = $opt_A ? "preparing" : "activating";
$lmd =~ m|LoadModule\s+(.+?)_module.*|;
my $modname = $1;
my $fname = "$CFG_SYSCONFDIR.modules.d/mod_$modname.conf";
notice("[$what module `$modname' in $fname]");
if (open(FP, ">$fname.new")) {
print FP "$c$lmd";
close(FP);
system("cp -b --suffix=.bak $fname.new $fname && " .
"rm $fname.new");
} else {
notice("unable to open configuration file");
}
}
}
}
sub error{
print STDERR "apxs:Error: $_[0].\n";
}
sub notice{
print STDERR "$_[0]\n";
}
##EOF##
__DATA__
##
## Makefile -- Build procedure for sample %NAME% Apache module
## Autogenerated via ``apxs -n %NAME% -g''.
##
builddir=.
top_srcdir=%PREFIX%
top_builddir=%LIBDIR%/apache2
include %INSTALLBUILDDIR%/special.mk
# the used tools
APACHECTL=apachectl
# additional defines, includes and libraries
#DEFS=-Dmy_define=my_value
#INCLUDES=-Imy/include/dir
#LIBS=-Lmy/lib/dir -lmylib
# the default target
all: local-shared-build
# install the shared object file into Apache
install: install-modules-yes
# cleanup
clean:
-rm -f mod_%NAME%.o mod_%NAME%.lo mod_%NAME%.slo mod_%NAME%.la
# simple test
test: reload
lynx -mime_header http://localhost/%NAME%
# install and activate shared object by reloading Apache to
# force a reload of the shared object file
reload: install restart
# the general Apache start/restart/stop
# procedures
start:
$(APACHECTL) start
restart:
$(APACHECTL) restart
stop:
$(APACHECTL) stop
-=#=-
mod_%NAME%.la: mod_%NAME%.slo
$(SH_LINK) -rpath $(libexecdir) -module -avoid-version mod_%NAME%.lo
DISTCLEAN_TARGETS = modules.mk
shared = mod_%NAME%.la
-=#=-
/*
** mod_%NAME%.c -- Apache sample %NAME% module
** [Autogenerated via ``apxs -n %NAME% -g'']
**
** To play with this sample module first compile it into a
** DSO file and install it into Apache's modules directory
** by running:
**
** $ apxs -c -i mod_%NAME%.c
**
** Then activate it in Apache's %TARGET%.conf file for instance
** for the URL /%NAME% in as follows:
**
** # %TARGET%.conf
** LoadModule %NAME%_module modules/mod_%NAME%.so
** <Location /%NAME%>
** SetHandler %NAME%
** </Location>
**
** Then after restarting Apache via
**
** $ apachectl restart
**
** you immediately can request the URL /%NAME% and watch for the
** output of this module. This can be achieved for instance via:
**
** $ lynx -mime_header http://localhost/%NAME%
**
** The output should be similar to the following one:
**
** HTTP/1.1 200 OK
** Date: Tue, 31 Mar 1998 14:42:22 GMT
** Server: Apache/1.3.4 (Unix)
** Connection: close
** Content-Type: text/html
**
** The sample page from mod_%NAME%.c
*/
#include "httpd.h"
#include "http_config.h"
#include "http_protocol.h"
#include "ap_config.h"
/* The sample content handler */
static int %NAME%_handler(request_rec *r)
{
if (strcmp(r->handler, "%NAME%")) {
return DECLINED;
}
r->content_type = "text/html";
if (!r->header_only)
ap_rputs("The sample page from mod_%NAME%.c\n", r);
return OK;
}
static void %NAME%_register_hooks(apr_pool_t *p)
{
ap_hook_handler(%NAME%_handler, NULL, NULL, APR_HOOK_MIDDLE);
}
/* Dispatch list for API hooks */
module AP_MODULE_DECLARE_DATA %NAME%_module = {
STANDARD20_MODULE_STUFF,
NULL, /* create per-dir config structures */
NULL, /* merge per-dir config structures */
NULL, /* create per-server config structures */
NULL, /* merge per-server config structures */
NULL, /* table of config file commands */
%NAME%_register_hooks /* register hooks */
};
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