moved a few utility functions to konforka and bumped konforka version requirement accordingly

3 files changed, 7 insertions, 6 deletions

diff --git a/src/sitecing-build.cc b/src/sitecing-build.cc
index 4cad0a3..887ef83 100644
--- a/src/sitecing-build.cc
+++ b/src/sitecing-build.cc
@@ -1,231 +1,232 @@
 #include <sys/types.h>
 #include <dirent.h>
 #include <getopt.h>
 #include <iostream>
 #include <memory>
 #include <fstream>
 #include <cassert>
 #include <set>
 using namespace std;
+#include <konforka/util.h>
 #include "sitecing/sitecing_util.h"
 #include "sitecing/util.h"
 #include "sitecing/sitespace.h"
 #include "sitecing/sitecing_interface_cgi.h"
 #include "sitecing/cgi_component.h"
 #include "sitecing/configuration.h"
 #include "sitecing/magic.h"
 #include "sitecing/sitecing_exception.h"
 #include "sitecing/exception.h"
 using namespace sitecing;
 
 #include "config.h"
 #define PHEADER PACKAGE "-build Version " VERSION
 #define PCOPY   "Copyright (c) 2004 Klever Group"
 
 static sitespace* site_space = NULL;
 typedef pair<dev_t,ino_t> the_inode_t;
 set<the_inode_t> built_inodes;
 
 void build_component(const string& component) {
     assert(site_space);
     cerr << "Building " << component << endl;
     try {
 	site_space->factory.make(site_space->config.root_so+component+".so");
     }catch(compile_error& ce) {
 	ce.see(CODEPOINT);
 	ifstream err((site_space->config.root_intermediate+ce.component_path+".stderr").c_str(),ios::in);
 	if(err) {
 	    cerr << err.rdbuf();
 	}
 	throw;
     }catch(preprocessor_error& pe) {
 	pe.see(CODEPOINT);
 	cerr << site_space->config.root_source << pe.component_name << ":" << pe.line_number << ":" << pe.what() << endl;
 	throw;
     }
 }
 
 void build_imports(const string& component);
 
 void build_with_imports(const string& component) {
     assert(site_space);
     struct stat st;
     string cp = site_space->config.root_source+component;
     if(!lstat(cp.c_str(),&st)) {
 	if(built_inodes.find(the_inode_t(st.st_dev,st.st_ino))!=built_inodes.end())
 	    return;
 	built_inodes.insert(the_inode_t(st.st_dev,st.st_ino));
     }
     build_component(component);
     build_imports(component);
 }
 
 void build_imports(const string& component) {
     assert(site_space);
     ifstream ifs((site_space->config.root_intermediate+component+".imports").c_str(),ios::in);
     cerr << "Building components imported by " << component << endl;
     if(ifs) {
 	string import;
 	while(!ifs.eof()) {
 	    ifs >> import;
 	    if(!import.empty())
 		build_with_imports(import);
 	}
     }
 }
 
 void build_http_status_handlers(const string& target) {
     assert(site_space);
     set<string> stop_list;
     string t = "/";
-    t += normalize_path(target,strip_leading_slash);
+    t += konforka::normalize_path(target,konforka::strip_leading_slash);
     for(;;) {
 	if(t[t.length()-1]=='/') {
 	    loaded_options* lo = site_space->config.lookup_loaded_options(t);
 	    if( lo && (lo->flags&config_options::flag_http_status_handlers) ) {
 		for(config_options::http_status_handlers_t::const_iterator i=lo->http_status_handlers.begin();i!=lo->http_status_handlers.end();++i) {
 		    if(stop_list.find(i->first)==stop_list.end()) {
 			build_with_imports(i->second);
 			stop_list.insert(i->first);
 		    }
 		}
 	    }
 	}
 	configuration::specs_t::iterator i=site_space->config.specs.find(t);
 	if( i!=site_space->config.specs.end() && (i->second.flags&config_options::flag_http_status_handlers) ) {
 	    for(config_options::http_status_handlers_t::const_iterator ii=i->second.http_status_handlers.begin();ii!=i->second.http_status_handlers.end();++i) {
 		if(stop_list.find(ii->first)==stop_list.end()) {
 		    build_with_imports(ii->second);
 		    stop_list.insert(ii->first);
 		}
 	    }
 	}
 	if(t.empty())
 	    return;
 	string::size_type sl=t.rfind('/');
 	if(sl==string::npos) {
 	    t.erase();
 	}else{
 	    if(sl==(t.length()-1))
 		t.erase(sl);
 	    else
 		t.erase(sl+1);
 	}
     }
 }
 
 void build_target(const string& target) {
     assert(site_space);
     string action = target;
     config_options::action_handler_t *ah = site_space->config.lookup_action_handler(target);
     if(ah)
 	action = ah->action;
     build_with_imports(action);
 }
 
 void build(const string& target) {
     assert(site_space);
     build_http_status_handlers(target);
     config_options *co_exception_handler = site_space->config.lookup_config(target,config_options::flag_exception_handler);
     if(co_exception_handler) {
 	string handler = co_exception_handler->exception_handler;
 	build_with_imports(handler);
     }
     string target_source = site_space->config.root_source+target;
     struct stat st;
     if(stat(target_source.c_str(),&st))
 	throw konforka::exception(CODEPOINT,"failed to stat() target");
     if(S_ISREG(st.st_mode)) {
 	build_target(target);
     }else if(S_ISDIR(st.st_mode)) {
 	build_http_status_handlers(target);
 	DIR *d=opendir(target_source.c_str());
         if(!d)
 	    throw konforka::exception(CODEPOINT,"failed to opendir()");
 	for(struct dirent *de=readdir(d);de;de=readdir(d)) {
 	    if(!strcmp(de->d_name,"."))
 		continue;
 	    if(!strcmp(de->d_name,".."))
 		continue;
-	    string subtarget = normalize_path(target+"/"+de->d_name);
+	    string subtarget = konforka::normalize_path(target+"/"+de->d_name);
 	    struct stat sts;
 	    if(stat((site_space->config.root_source+subtarget).c_str(),&sts))
 		throw konforka::exception(CODEPOINT,"failed to stat() subtarget");
 	    if(S_ISDIR(sts.st_mode)) {
 		build(subtarget);
 	    }else{
 		if(site_space->config.match_autobuild_files(target,de->d_name)){
 		    build_target(subtarget);
 		}
 	    }
 	}
 	closedir(d);
     }
 }
 
 int main(int argc,char **argv) {
     try {
 	string config_file = "sitecing.conf";
 	while(true) {
 	    static struct option opts[] = {
 		{ "help", no_argument, 0, 'h' },
 		{ "usage", no_argument, 0, 'h' },
 		{ "version", no_argument, 0, 'V' },
 		{ "license", no_argument, 0, 'L' },
 		{ "config", required_argument, 0, 'f' },
 		{ NULL, 0, 0, 0 }
 	    };
 	    int c = getopt_long(argc,argv,"f:hVL",opts,NULL);
 	    if(c==-1)
 		break;
 	    switch(c) {
 		case 'h':
 		    cerr << PHEADER << endl
 			<< PCOPY << endl << endl
 			<< " -h, --help" << endl
 			<< " --usage          display this text" << endl
 			<< " -V, --version    display version number" << endl
 			<< " -L, --license    show license" << endl
 			<< " -f filename, --config=filename" << endl
 			<< "                  specify configuration file to use" << endl;
 		    exit(0);
 		    break;
 		case 'V':
 		    cerr << VERSION << endl;
 		    exit(0);
 		    break;
 		case 'L':
 		    extern const char *COPYING;
 		    cerr << COPYING << endl;
 		    exit(0);
 		    break;
 		case 'f':
 		    config_file = optarg;
 		    break;
 		default:
 		    cerr << "Huh??" << endl;
 		    break;
 	    }
 	}
 	configuration config(config_file,true);
 	if(!(config.flags&configuration::flag_root_source))
 	    throw konforka::exception(CODEPOINT,"Unspecified root for sources");
 	if(!(config.flags&configuration::flag_root_intermediate))
 	    throw konforka::exception(CODEPOINT,"Unspecified root for intermediate files");
 	if(!(config.flags&configuration::flag_root_so))
 	    throw konforka::exception(CODEPOINT,"Unspecified root for shared objects");
 	sitespace ss(config);
 	site_space = &ss;
 	if(optind<argc) {
 	    for(int narg=optind;narg<argc;narg++) {
 		const char *arg = argv[narg];
 		build(arg);
 	    }
 	}else
 	    build("/");
 	return 0;
     }catch(exception& e) {
 	cerr << "Oops: " << e.what() << endl;
 	return 1;
     }
 }
diff --git a/src/sitecing-fastcgi.cc b/src/sitecing-fastcgi.cc
index 756dcee..03587aa 100644
--- a/src/sitecing-fastcgi.cc
+++ b/src/sitecing-fastcgi.cc
@@ -72,212 +72,212 @@ sitecing_fastcgi_pm::sitecing_fastcgi_pm(const string& config_file)
 		uid = strtol(config.user.c_str(),NULL,0);
 		if(errno)
 		    throw konforka::exception(CODEPOINT,"failed to resolve User value to uid");
 	    }
 	}
 	if(config.flags&configuration::flag_group) {
 	    struct group *gtmp = getgrnam(config.group.c_str());
 	    if(gtmp) {
 		gid = gtmp->gr_gid;
 	    }else{
 		errno=0;
 		gid = strtol(config.group.c_str(),NULL,0);
 		if(errno)
 		    throw konforka::exception(CODEPOINT,"failed to resolve Group value to gid");
 	    }
 	}
 	if(!(config.flags&configuration::flag_root_source))
 	    throw konforka::exception(CODEPOINT,"unspecified root for sources");
 	if(!(config.flags&configuration::flag_root_intermediate))
 	    throw konforka::exception(CODEPOINT,"unspecified root for intermediate files");
 	if(!(config.flags&configuration::flag_root_so))
 	    throw konforka::exception(CODEPOINT,"unspecified root for shared objects");
 	if(config.flags&configuration::flag_min_children)
 	    min_children = config.min_children;
 	if(config.flags&configuration::flag_max_children)
 	    max_children = config.max_children;
 	if(config.flags&configuration::flag_min_spare_children)
 	    min_spare_children = config.min_spare_children;
 	if(config.flags&configuration::flag_max_spare_children)
 	    max_spare_children = config.max_spare_children;
 	if(max_children<min_spare_children)
 	    throw konforka::exception(CODEPOINT,"inconsistent numbers of MaxChildren and MinSpareChildren");
 	if(min_children>max_spare_children && max_spare_children>=0)
 	    throw konforka::exception(CODEPOINT,"inconsistent numbers of MinChildren and MaxSpareChildren");
 	if(config.flags&configuration::flag_multi_process) {
 	    multi = config.multi_process;
 	}else{
 	    if(config.flags&configuration::flag_listen_socket)
 		multi = true;
 	    else
 		multi = false;
 	}
 	fss = (config.flags&configuration::flag_listen_socket)?new fcgi_socket(config.listen_socket.c_str(),5):new fcgi_socket(0);
 	if(!fss)
 	    throw konforka::exception(CODEPOINT,"failed to establish listening socket");
 	if(config.flags&configuration::flag_daemonize && config.daemonize) {
 	    pid_t pf = fork();
 	    if(pf<0)
 		throw konforka::exception(CODEPOINT,"failed to fork()");
 	    if(pf) {
 		die_humbly=true;
 		_exit(0);
 	    }
 	}
 	if(config.flags&configuration::flag_pid_file) {
 	    pidfile.set(config.pid_file);
 	}
 	if(multi)
 	    sem.init();
     }
 sitecing_fastcgi_pm::~sitecing_fastcgi_pm() {
     if(fss)
 	delete fss;
 }
 
 void sitecing_fastcgi_pm::process(int slot) {
     signal(SIGINT,SIG_DFL);
     signal(SIGABRT,SIG_DFL);
     signal(SIGTERM,SIG_DFL);
     give_up_privs();
     scoreboard_slot *sslot = sboard.get_slot(slot);
     try {
 	sitespace ss(config);
 	fcgi_socket& fs = *fss;
 	sitecing_interface_cgi scif(&ss);
 	string component_path;
 	string action;
 	config_options::action_handler_t *action_handler;
 	int rpc = 0;
 	if(config.flags&configuration::flag_requests_per_child)
 	    rpc = config.requests_per_child;
 	for(int req=0;(rpc<=0) || (req<rpc);rpc++) {
 	    semaphore_lock sl;
 	    if(multi) {
 		sslot->state = scoreboard_slot::state_idle;
 		sl.sem = &sem;
 		sl.lock();
 	    }
 	    sslot->state = scoreboard_slot::state_accept;
 	    fcgi_interface fi(fs);
 	    sslot->state = scoreboard_slot::state_processing;
 	    if(multi)
 		sl.unlock();
 	    cgi_gateway gw(fi);
 	    scif.prepare(&gw);
 	    try {
-		component_path = normalize_path(gw.path_info(),strip_leading_slash|strip_trailing_slash);
+		component_path = konforka::normalize_path(gw.path_info(),konforka::strip_leading_slash|konforka::strip_trailing_slash);
 		string full_component_path;
 		string sitecing_path_info;
 		while(true) {
 		    full_component_path = config.root_source+'/'+component_path;
 		    if(!access(full_component_path.c_str(),F_OK))
 			break;
 		    string::size_type sl = component_path.rfind('/');
 		    if(sl==string::npos)
 			throw konforka::exception(CODEPOINT,"can't find the target component");
 		    sitecing_path_info.insert(0,component_path,sl,string::npos);
 		    component_path.erase(sl);
 		}
 		fi.metavars["SITECING_PATH_INFO"]=sitecing_path_info;
 		action = component_path;
 		action_handler = config.lookup_action_handler(component_path);
 		if(action_handler) {
 		    action = action_handler->action;
 		}
-		string pwd = dir_name(full_component_path);
+		string pwd = konforka::dir_name(full_component_path);
 		if(chdir(pwd.c_str()))
 		    throw konforka::exception(CODEPOINT,"failed to chdir() into document's directory");
 		so_component soc = ss.fetch(action,&scif);
 		if(action_handler) {
 		    soc.ac->run(__magic_action,
 			    config.root_source.c_str(), config.root_intermediate.c_str(), config.root_so.c_str(),
 			    &(action_handler->args)
 			    );
 		}else{
 		    soc.ac->main(0,NULL);
 		}
 	    }catch(http_status& hs) {
 		scif.headers["Status"] = hs.status+" "+hs.message;
 		string hshp = config.lookup_http_status_handler(component_path,hs.status);
 		if(!hshp.empty()) {
 		    so_component hsh = ss.fetch(hshp,&scif); // TODO: handle error trying to handle status
 		    hsh.ac->run(__magic_http_status,config.root_source.c_str(),config.root_intermediate.c_str(),
 			    config.root_so.c_str(),action.c_str(),&hs);
 		}
 	    }catch(compile_error& ce) {
 		config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
 		if(co_exception_handler) {
 		    so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
 		    eh.ac->run(__magic_compile_error,ce.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),ce.component_path.c_str());
 		}else{
 		    ce.see(CODEPOINT);
 		    throw;
 		}
 	    }catch(preprocessor_error& pe) {
 		config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
 		if(co_exception_handler) {
 		    so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
 		    eh.ac->run(__magic_preprocess_error,pe.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),pe.component_name.c_str(),pe.line_number);
 		}else{
 		    pe.see(CODEPOINT);
 		    throw;
 		}
 	    }catch(exception& e) {
 		config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
 		if(co_exception_handler) {
 		    so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
 		    eh.ac->run(__magic_generic_exception,e.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),component_path.c_str(),&e);
 		}
 	    }
 	    scif.flush();
 	}
     }catch(exception& e) {
 	cerr << "->Oops: " << e.what() << endl;
     }
 }
 
 void sitecing_fastcgi_pm::run() {
     if(multi)
 	manage();
     else
 	process(0);
 }
 
 void sitecing_fastcgi_pm::give_up_privs() {
     if(config.flags&configuration::flag_chroot) {
 	if(chroot(config.chroot.c_str()))
 	    throw konforka::exception(CODEPOINT,"failed to chroot()");
     }
     if(config.flags&configuration::flag_group) {
 	if((getgid()!=gid) && setgid(gid))
 	    throw konforka::exception(CODEPOINT,"failed to setgid()");
     }
     if(config.flags&configuration::flag_user) {
 	if((getuid()!=uid) && setuid(uid))
 	    throw konforka::exception(CODEPOINT,"failed to setuid()");
     }
 }
 
 static sitecing_fastcgi_pm* _process_manager = NULL;
 
 static void lethal_signal_handler(int signum) {
     _process_manager->finishing=true;
 }
 
 int main(int argc,char **argv) {
     const char* id = *argv;
     const char* t;
     while(t = index(id,'/')) {
 	id=t; id++;
     }
     openlog(id,LOG_PERROR|LOG_PID,LOG_USER);
     try {
 	string config_file = "sitecing.conf";
 	while(true) {
 	    static struct option opts[] = {
 		{ "help", no_argument, 0, 'h' },
 		{ "usage", no_argument, 0, 'h' },
 		{ "version", no_argument, 0, 'V' },
 		{ "license", no_argument, 0, 'L' },
 		{ "config", required_argument, 0, 'f' },
 		{ NULL, 0, 0, 0 }
diff --git a/src/sitecing-plaincgi.cc b/src/sitecing-plaincgi.cc
index 3bd291a..2f93cc5 100644
--- a/src/sitecing-plaincgi.cc
+++ b/src/sitecing-plaincgi.cc
@@ -1,168 +1,168 @@
 #include <sys/types.h>
 #include <unistd.h>
 #include <signal.h>
 #include <getopt.h>
 #include <pwd.h>
 #include <grp.h>
 #include <errno.h>
 #include <syslog.h>
 #include <iostream>
 #include <memory>
 #include <typeinfo>
 using namespace std;
 #include "kingate/plaincgi.h"
 #include "kingate/cgi_gateway.h"
 using namespace kingate;
 #include "sitecing/sitecing_util.h"
 #include "sitecing/util.h"
 #include "sitecing/sitespace.h"
 #include "sitecing/sitecing_interface_cgi.h"
 #include "sitecing/cgi_component.h"
 #include "sitecing/configuration.h"
 #include "sitecing/magic.h"
 #include "sitecing/sitecing_exception.h"
 #include "sitecing/exception.h"
 using namespace sitecing;
 
 #include "config.h"
 #define PHEADER PACKAGE " Version " VERSION
 #define PCOPY   "Copyright (c) 2005 Klever Group"
 
 class cdummyClass : public acomponent {
     public:
 	void main(int _magic,va_list _args) {}
 	void *__the_most_derived_this() { return NULL; }
 } cdummyInstance;
 class adummyClass : public cgi_component {
     public:
 	void main(int _magic,va_list _args) {}
 	void *__the_most_derived_this() { return NULL; }
 } adummyInstance;
 
 void process_request(configuration& config) {
     try {
 	sitespace ss(config);
 	sitecing_interface_cgi scif(&ss);
 	string component_path;
 	string action;
 	config_options::action_handler_t *action_handler;
 	plaincgi_interface ci;
 	cgi_gateway gw(ci);
 	scif.prepare(&gw);
 	try {
-	    component_path = normalize_path(gw.path_info(),strip_leading_slash|strip_trailing_slash);
+	    component_path = konforka::normalize_path(gw.path_info(),konforka::strip_leading_slash|konforka::strip_trailing_slash);
 	    string full_component_path;
 	    string sitecing_path_info;
 	    while(true) {
 		full_component_path = config.root_source+'/'+component_path;
 		if(!access(full_component_path.c_str(),F_OK))
 		    break;
 		string::size_type sl = component_path.rfind('/');
 		if(sl==string::npos)
 		    throw konforka::exception(CODEPOINT,"can't find the target component");
 		sitecing_path_info.insert(0,component_path,sl,string::npos);
 		component_path.erase(sl);
 	    }
 	    ci.metavars["SITECING_PATH_INFO"]=sitecing_path_info;
 	    action = component_path;
 	    action_handler = config.lookup_action_handler(component_path);
 	    if(action_handler) {
 		action = action_handler->action;
 	    }
-	    string pwd = dir_name(full_component_path);
+	    string pwd = konforka::dir_name(full_component_path);
 	    if(chdir(pwd.c_str()))
 		throw konforka::exception(CODEPOINT,"failed to chdir() into document's directory");
 	    so_component soc = ss.fetch(action,&scif);
 	    if(action_handler) {
 		soc.ac->run(__magic_action,
 			config.root_source.c_str(), config.root_intermediate.c_str(), config.root_so.c_str(),
 			&(action_handler->args)
 			);
 	    }else{
 		soc.ac->main(0,NULL);
 	    }
 	}catch(http_status& hs) {
 	    scif.headers["Status"] = hs.status+" "+hs.message;
 	    string hshp = config.lookup_http_status_handler(component_path,hs.status);
 	    if(!hshp.empty()) {
 		so_component hsh = ss.fetch(hshp,&scif); // TODO: handle error trying to handle status
 		hsh.ac->run(__magic_http_status,config.root_source.c_str(),config.root_intermediate.c_str(),
 			config.root_so.c_str(),action.c_str(),&hs);
 	    }
 	}catch(compile_error& ce) {
 	    config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
 	    if(co_exception_handler) {
 		so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
 		eh.ac->run(__magic_compile_error,ce.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),ce.component_path.c_str());
 	    }else{
 		ce.see(CODEPOINT);
 		throw;
 	    }
 	}catch(preprocessor_error& pe) {
 	    config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
 	    if(co_exception_handler) {
 		so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
 		eh.ac->run(__magic_preprocess_error,pe.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),pe.component_name.c_str(),pe.line_number);
 	    }else{
 		pe.see(CODEPOINT);
 		throw;
 	    }
 	}catch(exception& e) {
 	    config_options *co_exception_handler = config.lookup_config(component_path,config_options::flag_exception_handler);
 	    if(co_exception_handler) {
 		so_component eh = ss.fetch(co_exception_handler->exception_handler,&scif); // TODO: handle error trying to handle error.
 		eh.ac->run(__magic_generic_exception,e.what(),config.root_source.c_str(),config.root_intermediate.c_str(),config.root_so.c_str(),component_path.c_str(),&e);
 	    }
 	}
 	scif.flush();
     }catch(exception& e) {
 	cerr << "->Oops: " << e.what() << endl;
     }
 }
 
 int main(int argc,char **argv) {
     const char* id = *argv;
     const char* t;
     while(t = index(id,'/')) {
 	id=t; id++;
     }
     openlog(id,LOG_PERROR|LOG_PID,LOG_USER);
     try {
 	const char *esccf = getenv("SITECING_CONF");
 	string config_file = esccf ? esccf : "sitecing.conf";
 	while(true) {
 	    static struct option opts[] = {
 		{ "help", no_argument, 0, 'h' },
 		{ "usage", no_argument, 0, 'h' },
 		{ "version", no_argument, 0, 'V' },
 		{ "license", no_argument, 0, 'L' },
 		{ "config", required_argument, 0, 'f' },
 		{ NULL, 0, 0, 0 }
 	    };
 	    int c = getopt_long(argc,argv,"f:hVL",opts,NULL);
 	    if(c==-1)
 		break;
 	    switch(c) {
 		case 'h':
 		    cerr << PHEADER << endl
 			<< PCOPY << endl << endl
 			<< " -h, --help" << endl
 			<< " --usage          display this text" << endl
 			<< " -V, --version    display version number" << endl
 			<< " -L, --license    show license" << endl
 			<< " -f filename, --config=filename" << endl
 			<< "                  specify configuration file to use" << endl;
 		    exit(0);
 		    break;
 		case 'V':
 		    cerr << VERSION << endl;
 		    exit(0);
 		    break;
 		case 'L':
 		    extern const char *COPYING;
 		    cerr << COPYING << endl;
 		    exit(0);
 		    break;
 		case 'f':
 		    config_file = optarg;
 		    break;