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/*
* ion/pwm/pwm.c
*
* Copyright (c) Tuomo Valkonen 1999-2009.
*
* See the included file LICENSE for details.
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <libtu/util.h>
#include <libtu/optparser.h>
#include <libtu/errorlog.h>
#include <libtu/prefix.h>
#include <libextl/readconfig.h>
#include <libmainloop/exec.h>
#include <ioncore/common.h>
#include <ioncore/global.h>
#include <ioncore/ioncore.h>
#include <ioncore/exec.h>
#include <ioncore/event.h>
#include "../version.h"
/* Options. Getopt is not used because getopt_long is quite gnu-specific
* and they don't know of '-display foo' -style args anyway.
* Instead, I've reinvented the wheel in libtu :(.
*/
static OptParserOpt pwm_opts[]={
{OPT_ID('d'), "display", OPT_ARG, "host:dpy.scr",
DUMMY_TR("X display to use")},
{'c', "conffile", OPT_ARG, "config_file",
DUMMY_TR("Configuration file")},
{'s', "searchdir", OPT_ARG, "dir",
DUMMY_TR("Add directory to search path")},
{OPT_ID('o'), "oneroot", 0, NULL,
DUMMY_TR("Manage default screen only")},
{OPT_ID('s'), "session", OPT_ARG, "session_name",
DUMMY_TR("Name of session (affects savefiles)")},
{OPT_ID('S'), "smclientid", OPT_ARG, "client_id",
DUMMY_TR("Session manager client ID")},
{OPT_ID('N'), "noerrorlog", 0, NULL,
DUMMY_TR("Do not create startup error log and display it "
"with xmessage.")},
{'h', "help", 0, NULL,
DUMMY_TR("Show this help")},
{'V', "version", 0, NULL,
DUMMY_TR("Show program version")},
{OPT_ID('a'), "about", 0, NULL,
DUMMY_TR("Show about text")},
END_OPTPARSEROPTS
};
static void help()
{
int i;
printf(TR("Usage: %s [options]\n\n"), libtu_progname());
for(i=0; pwm_opts[i].descr!=NULL; i++)
pwm_opts[i].descr=TR(pwm_opts[i].descr);
optparser_printhelp(OPTP_MIDLONG, pwm_opts);
printf("\n");
}
int main(int argc, char*argv[])
{
const char *cfgfile="cfg_pwm";
const char *display=NULL;
char *cmd=NULL;
int stflags=0;
int opt;
ErrorLog el;
FILE *ef=NULL;
char *efnam=NULL;
bool may_continue=FALSE;
bool noerrorlog=FALSE;
char *localedir;
libtu_init(argv[0]);
#ifdef CF_RELOCATABLE_BIN_LOCATION
prefix_set(argv[0], CF_RELOCATABLE_BIN_LOCATION);
#endif
localedir=prefix_add(LOCALEDIR);
if(!ioncore_init(CF_EXECUTABLE, argc, argv, localedir))
return EXIT_FAILURE;
if(localedir!=NULL)
free(localedir);
prefix_wrap_simple(extl_add_searchdir, EXTRABINDIR); /* ion-completefile */
prefix_wrap_simple(extl_add_searchdir, MODULEDIR);
prefix_wrap_simple(extl_add_searchdir, ETCDIR);
#ifdef PWM_ETCDIR
prefix_wrap_simple(extl_add_searchdir, PWM_ETCDIR);
#endif
prefix_wrap_simple(extl_add_searchdir, SHAREDIR);
prefix_wrap_simple(extl_add_searchdir, LCDIR);
extl_set_userdirs(CF_EXECUTABLE);
optparser_init(argc, argv, OPTP_MIDLONG, pwm_opts);
while((opt=optparser_get_opt())){
switch(opt){
case OPT_ID('d'):
display=optparser_get_arg();
break;
case 'c':
cfgfile=optparser_get_arg();
break;
case 's':
extl_add_searchdir(optparser_get_arg());
break;
case OPT_ID('S'):
ioncore_g.sm_client_id=optparser_get_arg();
break;
case OPT_ID('o'):
stflags|=IONCORE_STARTUP_ONEROOT;
break;
case OPT_ID('s'):
extl_set_sessiondir(optparser_get_arg());
break;
case OPT_ID('N'):
noerrorlog=TRUE;
break;
case 'h':
help();
return EXIT_SUCCESS;
case 'V':
printf("%s\n", ION_VERSION);
return EXIT_SUCCESS;
case OPT_ID('a'):
printf("%s\n", ioncore_aboutmsg());
return EXIT_SUCCESS;
default:
warn(TR("Invalid command line."));
help();
return EXIT_FAILURE;
}
}
if(!noerrorlog){
/* We may have to pass the file to xmessage so just using tmpfile()
* isn't sufficient.
*/
libtu_asprintf(&efnam, "%s/pwm-%d-startup-errorlog", P_tmpdir,
getpid());
if(efnam==NULL){
warn_err();
}else{
ef=fopen(efnam, "wt");
if(ef==NULL){
warn_err_obj(efnam);
free(efnam);
efnam=NULL;
}else{
cloexec_braindamage_fix(fileno(ef));
fprintf(ef, TR("PWM startup error log:\n"));
errorlog_begin_file(&el, ef);
}
}
}
if(ioncore_startup(display, cfgfile, stflags))
may_continue=TRUE;
fail:
if(!may_continue)
warn(TR("Refusing to start due to encountered errors."));
if(ef!=NULL){
pid_t pid=-1;
if(errorlog_end(&el) && ioncore_g.dpy!=NULL){
fclose(ef);
pid=fork();
if(pid==0){
ioncore_setup_display(DefaultScreen(ioncore_g.dpy));
if(!may_continue)
XCloseDisplay(ioncore_g.dpy);
else
close(ioncore_g.conn);
libtu_asprintf(&cmd, CF_XMESSAGE " %s", efnam);
if(cmd==NULL){
warn_err();
}else if(system(cmd)==-1){
warn_err_obj(cmd);
}
unlink(efnam);
exit(EXIT_SUCCESS);
}
if(!may_continue && pid>0)
waitpid(pid, NULL, 0);
}else{
fclose(ef);
}
if(pid<0)
unlink(efnam);
free(efnam);
}
if(!may_continue)
return EXIT_FAILURE;
ioncore_mainloop();
/* The code should never return here */
return EXIT_SUCCESS;
}
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